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44
Maestro MTL High Pressure Fan Coil Units TECHNICAL GUIDE Compliant with ERP 2015 Regulation (EU) No. 327/2011 Cert. n° 0545 www.eurovent-certification.com

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  • SABIANA SpAVia Piave 53 - 20011 Corbetta (MI) Italy T. +39 02 97203 1 r.a. • F. +39 02 [email protected]

    Maestro MTLHigh PressureFan Coil Units

    T E C H N I C A L G U I D E

    Compliant with ERP 2015Regulation (EU) No. 327/2011

    Follow us on

    Sabiana app

    99A

    4340

    100L

    A/0

    1/18

    Cert. n° 0545 www.eurovent-certification.com

  • • Available pressure • Fan absorption • Water pressure drop • Sound power

    Sabiana take part to the Eurovent program of fan coil performance certification.The official figures are published in the web site www.eurovent-certification.com.The tested performances are:

    • Heating emission (2 pipe units) at the following conditions: - Water temperature +45°C E.W.T. +40°C L.W.T. - Entering air temperature +20°C

    • Heating emission (4 pipe units) at the following conditions: - Water temperature +65°C E.W.T. +55°C L.W.T. - Entering air temperature +20°C

    • Cooling total emission at the following conditions: - Water temperature +7°C E.W.T. +12°C L.W.T. - Entering air temperature +27°C dry bulb +19°C wet bulb

    • Cooling sensible emission at the following conditions: - Water temperature +7°C E.W.T. +12°C L.W.T. - Entering air temperature +27°C dry bulb +19°C wet bulb The descriptions and illustrations provided in this publication are not binding:

    Sabiana reserves the right, whilst maintaining the essential characteristics of the types describedand illustrated, to make, at any time, without the requirement to promptly update

    this piece of literature, any changes that it considers usefulfor the purpose of improvement or for any other manufacturing or commercial requirements.

    43

    MaestroMaestro MTL Sizes 1÷7

    Dimensions: 135x86x31 mm

    Dimensions: 135x86x31 mm

    For Models 1-2 use only the WM-T control code 9066630.For Models 3-4-5-6use the WM-T control code 9066630 + SEL-S code 9079110.

    For Model 7use the WM-T control code 9066630 + 2 speed switches SEL-S code 9079110.

    • ON-OFF switch and manual 3 speed switch.• Manual Summer/Winter switch.• Electronic room thermostat for fan control (ON-OFF).• Electronic room thermostat for water valve control (ON-OFF).• It allows to control the low temperature cut-out thermostat (TMM).• It allows to control the chilled water valve (ON-OFF) and the electric heater (BEM) only in case that hot water is not used in winter.• Presence of a LED signal when the thermostat is on.

    Control power absorption: 0,25 VA

    IdentIfIcatIon codeWM-T 9066630

    For Models 1-2 use only the WM-TQR control code 9066631.For Models 3-4-5-6use theWM-TQR control code 9066631 + SEL-S code 9079110.

    For Model 7use theWM-TQR control code 9066631 + 2 speed switches SEL-S code 9079110.

    • ON-OFF switch and manual 3 speed switch.• Manual, automatic or centralized Summer/Winter switch.• Electric heater switch.• Electronic room thermostat for fan control (ON-OFF).• Electronic room thermostat for valve control (ON-OFF).• Simultaneus thermostatic control of the valves and fan.• It allows to control the low temperature cut-out thermostat (NTC).• It allows to control the water valves (ON-OFF) and the electric heater managed as main heating element or as an integration element.• Energy saving function.• Presence of a LED signal when the thermostat is on.

    Control power absorption: 1 VA.

    IdentIfIcatIon codeWM-TQR 9066631

    Wall electronic controlsfor BEM electric heater (optional)

    CONTENTS

    • Sizes 1÷5 • Introduction Page 3 • Construction features Page 3 • Dimensions, weight and water content Page 4 • Operating limits Page 5 • EUROVENT Certification Page 6 • Main performance and technical characteristics Page 7 • Cooling emission tables Page 10 • Heating emission tables Page 14 • Correction factors tables Page 16 • Water side pressure drop Page 18 • Accessory air side pressure drop Page 18

    • Sizes 6−7 • Introduction Page 19 • Construction features Page 19 • Dimensions, weight and water content Page 20 • Operating limits Page 21 • Main performance and technical characteristics Page 22 • Cooling emission tables Page 23 • Heating emission tables Page 25 • Available pressure for Maestro 64 Page 26 • Pressure drop for Maestro 6 Page 26 • Available pressure for Maestro 74 Page 27 • Pressure drop for Maestro 7 Page 27 • Correction diagrams Page 28 • Water side pressure drop Page 29

    • Sizes 1÷7 • Accessories (for sizes 1÷7) Page 30 • Wall electronic controls (for sizes 1÷7) Page 32 • Controls and units MB version (for sizes 1÷7) Page 34 • Management system for a network of fan coils (for sizes 1÷7) Page 37 • Accessories (optional) Page 40

  • 3

    MaestroSizes 1÷5

    CASINGIt is made with 1,0 mm galvanized steel for sizes 1-2-3 and with 1,2 mm galvanized steel for sizes4-5, insulated with 10 mm polyolefin (PO) foam (class M1).

    FAN ASSEMBLYConsists of quiet centrifugal fans with two impellers and a directly driven single phase, five speedmotor, 230V 50Hz, with capacitor, insulation class B.

    COILIt is manufactured from drawn copper tube and the aluminium fins are mechanically bonded ontothe tube by an expansion process.

    The Maestro range Sabiana (sizes 1÷5) is available with the combination of either 3 or 4 row coilswith the possibility to add a 1 or 2 row coil (3+1, 4+1, 3+2, 4+2 versions for 4 pipe systems).The connections are on the left hand side lookingfrom the air inlet of the unit (see picture anddrawing at page 4).On request the connections can be movedto the other side.

    The heat exchanger is not suitable for usein corrosive atmosphere or in environmentswhere aluminium may be subject to corrosion.

    FILTERThe filter is made of polypropylene cellular fabric regenerating filter.The filter frame of galvanized steel is inserted into sliding guides fastened to the internal structurefor easy insertion and removal of the filter.

    CONDENSATE COLLECTION TRAYIt is made from galvanized steel insulated with 3 mm polyolefin (PO) foam (class M1).

    Introduction

    Construction features

    Following many years of experience in the field of heating and air conditioning, Sabiana hasdeveloped a range of Maestro fan coils for concealed installation and connection to a ductsystem.Sizes 1÷5 supply a consistent air flow with static pressure up to 160 Pa to fit most conditions,with the combination of either 3 or 4 row heating coils and 2 or 4 pipe configurations with additionalheating coil.The fan assembly has 5 speeds.

    Compliant with ERP 2015 Regulation (EU) No. 327/2011

  • 4

    MaestroSizes 1÷5Dimensions, weight and water content

    FAN SIDE(OUTLET)

    FILTER SIDE(INLET)

    (coil connectionson the left lookingthe air direction)

    Air flow

    STANDARD

    FAN SIDE(OUTLET)

    FILTER SIDE(INLET)

    Left connections (standard)

    Right connections (on request)

    FILTER SIDE(INLET)

    FILTER

    FILTER

    FAN SIDE(OUTLET)

    Weight with packaging (kg)Weight without packaging (kg) Water content (l)

    45

    46

    54

    75

    85

    48

    50

    58

    80

    90

    50

    52

    60

    83

    94

    47

    48

    56

    78

    88

    50

    51

    60

    83

    94

    51

    53

    62

    86

    98

    48

    49

    57

    79

    89

    51

    53

    61

    84

    94

    53

    55

    63

    87

    98

    50

    51

    59

    82

    92

    53

    54

    63

    87

    98

    54

    56

    65

    90

    102

    2,0

    2,9

    3,5

    4,7

    5,7

    2,6

    3,7

    4,6

    6,0

    7,1

    0,9

    1,1

    1,4

    2,0

    2,7

    1,5

    1,8

    2,4

    3,2

    4,1

    3R 3+1R 3+2R 4R 4+1R 4+2R 3R 3+1R 3+2R 4R 4+1R 4+2R 3R 4R 1R 2R

    MTL 1MTL 2MTL 3MTL 4MTL 5

    MoDel

    Main Additional

    CoilDimensions (mm)

    1133

    1133

    1133

    1445

    1445

    698

    698

    698

    853

    853

    310

    310

    360

    360

    435

    255

    255

    305

    293

    368

    991

    991

    991

    1302

    1302

    620

    620

    620

    775

    775

    1185

    1185

    1185

    1497

    1497

    54

    54

    54

    58

    58

    245

    245

    295

    291

    367

    50

    50

    50

    54

    54

    249

    249

    299

    295

    370

    3/4”

    1”

    1”

    1 1/4”

    1 1/4”

    3/4”

    1”

    1”

    1 1/4”

    1 1/4”

    3/4”

    3/4”

    3/4”

    1”

    1”

    3/4”

    3/4”

    3/4”

    1”

    1”

    A B C D E F G H L M N IN INOUT OUT

    MTL 1MTL 2MTL 3MTL 4MTL 5

    MoDel 1 32 4

    Wiring terminal board

  • 5

    Maestro

    Water circuit Maximum water pressure: 1000 kPa (10 bars)MIN. entering water temperature: +5°C

    MAX. entering water temperature: +80°C

    Supply Single phase 230V 50Hz

    Air flow Suitable relative humidity 15-75%

    MIN. entering air temperature: +6°C

    MAX. entering air temperature: +40°C

    MAX. leaving air temperature: +50°C

    230/150Hz

    W

    A

    MTL 1 MTL 2 MTL 3 MTL 4 MTL 5MoDel

    Motor electrical data (max. absorption)

    240

    1,09

    412

    1,6

    523

    2,45

    680

    3,20

    885

    4,01

    Sizes 1÷5Operating limits

  • 6

    Maestro

    1270035

    13,7510,6211,3412,027,450063655456

    3324550

    15,3112,1312,5514,732,961767695860

    53800

    7016,7313,5613,6417,438,476070726163

    1205535

    10,858,218,9513,824,639059615052

    3254550

    12,349,619,9517,429,949063655456

    5296070

    13,4610,7210,6020,533,957066685759

    1168030

    8,616,586,7015,712,935057604851

    3204550

    9,677,607,4419,415,642062645355

    5239070

    10,588,518,0822,918,147065675658

    184015

    4,993,664,096,9

    12,017044473538

    3139050

    6,965,425,5312,520,823056594750

    5177580

    8,036,496,3016,326,328561645255

    177025

    4,093,183,494,99,811544473538

    3109050

    5,114,164,297,314,215552554346

    5135075

    5,794,874,819,217,518558604951

    1274035

    14,5411,2117,6713,314,250063655456

    3328050

    16,1912,8020,3216,318,361767695860

    53850

    7017,7614,3722,9319,422,876070726163

    1207035

    10,908,25

    12,7913,913,439059615052

    3258050

    12,409,70

    14,9217,717,749063655456

    5302070

    13,6010,9016,5320,921,357066685759

    1171030

    8,716,67

    10,2016,015,635057604851

    3207550

    9,767,68

    11,7519,823,042062645355

    5244070

    10,718,65

    13,1923,424,847065675658

    184015

    4,993,665,576,96,217044473538

    3141050

    7,015,488,2712,717,023056594750

    5182580

    8,156,62

    10,1016,818,328561645255

    179025

    4,173,254,985,15,211544473538

    3112550

    5,214,266,447,68,215552554346

    5141075

    5,925,037,679,611,318558604951

    Sizes 1÷5EUROVENT Certification

    www.eurovent-certification.com

    COOLING (summer mode)

    Entering air temperature + 27°C d.b. + 19°C w.b.Water temperature + 7°C E.W.T. + 12°C L.W.T.

    HEATING (winter mode)

    Entering air temperature + 20°CWater temperature + 65°C E.W.T. + 55°C L.W.T.

    m3/hPakWkWkWkPakPaW

    dB(A)dB(A)dB(A)dB(A)

    m3/hPakWkWkWkPakPaW

    dB(A)dB(A)dB(A)dB(A)

    Speed (E)Air flow (E)Available pressure (E)Cooling total emission (E)Cooling sensible emission (E)Heating (E)Dp Cooling (E)Dp Heating (E)Fan (E)Sound power level outlet (E)Sound power level inlet + radiated (E)Sound pressure level outlet (*)Sound pressure level inlet + radiated (*)

    Speed (E)Air flow (E)Available pressure (E)Cooling total emission (E)Cooling sensible emission (E)Heating (E)Dp Cooling (E)Dp Heating (E)Fan (E)Sound power level outlet (E)Sound power level inlet + radiated (E)Sound pressure level outlet (*)Sound pressure level inlet + radiated (*)

    MTL 54

    MTL 54+1

    MTL 44

    MTL 44+1

    MTL 34

    MTL 34+1

    MTL 24

    MTL 24+1

    MTL 14

    MTL 14+1

    MoDel

    MoDel

    (E) = Eurovent certified performance. (*) = The sound pressure levels are 9 dB(A) lower than the sound power levels and apply to the reverberant field of a 100 m3 room and a reverberation time of 0.5 sec. (**) = Models not covered by EUROVENT certification program.

    2 pipe units.

    4 pipe units.

    The following standard rating conditions are used:

    The following standard rating conditions are used:

    COOLING (summer mode)

    Entering air temperature + 27°C d.b. + 19°C w.b.Water temperature + 7°C E.W.T. + 12°C L.W.T.

    HEATING (winter mode)

    Entering air temperature + 20°CWater temperature + 45°C E.W.T. + 40°C L.W.T.

  • 7

    Maestro

    17958,946,90

    16,4316,39,93805849

    20609,717,63

    18,2019,012,04266051

    226510,248,17

    19,5021,013,74646253

    255010,968,9121,2223,916,15056455

    274511,439,4022,3625,817,75206657

    8555,043,708,776,73,71804738

    11606,184,70

    11,139,85,82225344

    15357,365,82

    13,7613,58,62685748

    20058,597,08

    16,6918,112,33206051

    23609,397,95

    18,7121,415,23406455

    288514,9911,6327,0813,58,05366455

    324016,0712,6829,5615,49,56126758

    350516,8013,4131,3116,810,66896960

    392017,9514,5733,9619,012,37667162

    433018,9315,6336,4921,214,08687566

    9404,673,728,766,03,91304637

    11155,184,239,957,34,91514940

    13155,714,7911,228,86,11735243

    15756,325,47

    12,7710,67,82045546

    18356,846,09

    14,2012,49,52325950

    224511,478,7920,8614,68,74456051

    256012,409,6723,0216,910,55056253

    282013,1210,3824,6918,812,05506556

    308513,8111,0726,3620,813,66006758

    334014,3811,6827,9022,615,16806960

    18157,436,02

    14,2718,712,33905849

    20808,006,62

    15,6921,514,64306051

    23008,447,10

    16,8023,816,64706253

    25909,007,7318,1926,819,35096455

    27909,368,1619,1028,821,15236657

    8554,323,297,758,75,11804738

    11655,214,139,7412,47,82255344

    15506,145,08

    11,9216,911,42735748

    20607,176,23

    14,4522,516,43206051

    25107,907,12

    16,4427,420,93406455

    290512,6710,3123,6417,210,95416455

    327513,5111,2225,7119,612,76226758

    354014,0711,8227,1421,214,17036960

    397514,9912,8529,3523,916,37827162

    440015,7913,7831,4226,518,48857566

    9954,053,427,917,04,81364637

    11404,373,778,718,15,81544940

    13404,784,249,739,67,11755243

    16405,324,90

    11,1311,69,12105546

    19255,785,49

    12,3313,711,02405950

    22659,637,7018,0618,49,24456051

    258510,348,4419,8221,211,05056253

    285510,919,0521,2123,512,55506556

    313011,469,64

    22,5625,714,06006758

    340011,9110,1623,8528,015,56806960

    1 2 3 4 51 2 3 4 5

    1 2 3 4 51 2 3 4 51 2 3 4 5

    1 2 3 4 51 2 3 4 51 2 3 4 5

    Sizes 1÷5

    COOLING (summer mode)

    Entering air temperature + 27°C d.b. + 19°C w.b.Water temperature + 7°C E.W.T. + 12°C L.W.T.

    AVAILABLE PRESSURE: 0 Pa

    HEATING (winter mode)

    Entering air temperature + 20°CWater temperature + 60°C E.W.T. + 50°C L.W.T.

    Main performanceand technical characteristics

    MTL 13

    MTL 14

    MTL 43

    MTL 44

    MTL 33

    MTL 34

    MTL 23

    MTL 24

    MTL 53

    MTL 54

    MoDel

    MoDel

    MoDel

    MoDel

    m3/hkWkWkWkPakPaW

    dB(A)dB(A)

    m3/hkWkWkWkPakPaW

    dB(A)dB(A)

    m3/hkWkWkWkPakPaW

    dB(A)dB(A)

    m3/hkWkWkWkPakPaW

    dB(A)dB(A)

    SpeedAir flowCooling total emissionCooling sensible emissionHeatingDp CoolingDp HeatingFanSound power LwSound pressure (*)

    SpeedAir flowCooling total emissionCooling sensible emissionHeatingDp CoolingDp HeatingFanSound power LwSound pressure (*)

    SpeedAir flowCooling total emissionCooling sensible emissionHeatingDp CoolingDp HeatingFanSound power LwSound pressure (*)

    SpeedAir flowCooling total emissionCooling sensible emissionHeatingDp CoolingDp HeatingFanSound power LwSound pressure (*)

    (*) = The sound pressure levels are 9 dB(A) lower than the sound power levels and apply to the reverberant field of a 100 m3 room and a reverberation time of 0.5 sec.

    2 pipe units.

    The following standard rating conditions are used:

    MTl uNiTS wiTh 3 Row coil

    MTl uNiTS wiTh 4 Row coil

  • 8

    Maestro

    17808,906,868,0316,118,23755849

    20409,657,588,6418,820,84226051

    223510,178,109,0720,722,74586253

    251010,858,809,6423,525,34996455

    270011,329,299,9925,427,15156657

    8505,033,694,766,6

    15,71764738

    11556,174,695,769,7

    22,32185344

    15207,325,776,7313,429,62625748

    19658,506,977,7117,737,73106051

    22859,237,778,3020,743,53306455

    286514,9311,5813,3713,429,75306455

    321015,9812,5914,2515,233,36046758

    347516,7413,3414,8516,736,16786960

    387517,8314,4515,7718,840,27547162

    426518,8015,4816,5820,944,18517566

    9104,573,624,495,815,31274637

    10905,114,164,987,118,41494940

    12905,654,725,468,621,81705243

    15306,225,355,9910,325,71995546

    17756,755,966,4712,029,62265950

    222511,428,7410,5014,532,24406051

    253512,349,6111,2716,736,75006253

    279013,0410,3011,8618,640,35426556

    305513,7411,0012,4420,643,95996758

    329514,2911,5812,9522,347,26706960

    17957,385,978,0718,418,43805849

    20607,966,588,6921,221,04266051

    22658,377,039,1223,523,04646253

    25508,927,649,7126,425,75056455

    27459,308,0710,0828,427,55206657

    8554,323,294,788,7

    15,91804738

    11605,204,125,7912,422,42225344

    15356,115,056,7616,829,82685748

    20057,076,117,7822,038,63206051

    23607,666,838,4425,844,83406455

    288512,6110,2613,4217,130,05366455

    324013,4611,1514,3019,333,66126758

    350514,0111,7614,9221,036,46896960

    392014,8812,7315,8523,540,67667162

    433015,6313,6216,7326,144,68687566

    9403,923,284,586,613,71304637

    11154,323,715,047,916,41514940

    13154,744,185,519,419,21735243

    15755,214,766,0711,323,02045546

    18355,645,306,5813,226,52325950

    22459,587,6510,5318,332,44456051

    256010,298,3911,3221,037,05056253

    282010,848,9711,9323,240,85506556

    308511,369,5412,5025,444,46006758

    334011,8010,0413,0427,547,86806960

    1 2 3 4 51 2 3 4 5

    1 2 3 4 5

    1 2 3 4 5

    1 2 3 4 5

    1 2 3 4 51 2 3 4 5

    1 2 3 4 5

    1 2 3 4 5

    1 2 3 4 5

    MTL 13+1

    MTL 14+1

    MTL 43+1

    MTL 44+1

    MTL 33+1

    MTL 34+1

    MTL 23+1

    MTL 24+1

    MTL 53+1

    MTL 54+1

    MoDel

    MoDel

    MoDel

    MoDel

    m3/hkWkWkWkPakPaW

    dB(A)dB(A)

    m3/hkWkWkWkPakPaW

    dB(A)dB(A)

    m3/hkWkWkWkPakPaW

    dB(A)dB(A)

    m3/hkWkWkWkPakPaW

    dB(A)dB(A)

    SpeedAir flowCooling total emissionCooling sensible emissionHeatingDp CoolingDp HeatingFanSound power LwSound pressure (*)

    SpeedAir flowCooling total emissionCooling sensible emissionHeatingDp CoolingDp HeatingFanSound power LwSound pressure (*)

    SpeedAir flowCooling total emissionCooling sensible emissionHeatingDp CoolingDp HeatingFanSound power LwSound pressure (*)

    SpeedAir flowCooling total emissionCooling sensible emissionHeatingDp CoolingDp HeatingFanSound power LwSound pressure (*)

    Sizes 1÷5Main performanceand technical characteristics

    (*) = The sound pressure levels are 9 dB(A) lower than the sound power levels and apply to the reverberant field of a 100 m3 room and a reverberation time of 0.5 sec.

    MTl uNiTS wiTh 3+1 Row coil

    MTl uNiTS wiTh 4+1 Row coil

    COOLING (summer mode)

    Entering air temperature + 27°C d.b. + 19°C w.b.Water temperature + 7°C E.W.T. + 12°C L.W.T.

    AVAILABLE PRESSURE: 0 Pa

    HEATING (winter mode)

    Entering air temperature + 20°CWater temperature + 70°C E.W.T. + 60°C L.W.T.

    4 pipe units.

    The following standard rating conditions are used:

  • 9

    Maestro

    17658,866,82

    16,1916,018,03695849

    20109,577,50

    17,6318,421,24146051

    219510,077,99

    18,6620,323,54496253

    245510,738,6720,0222,926,84896455

    264511,209,1620,9824,829,25076657

    8455,013,679,146,6

    12,31734738

    11456,144,67

    11,359,6

    18,42125344

    15057,285,74

    13,6713,226,12575748

    19108,366,83

    15,9517,234,63106051

    21909,027,54

    17,3719,840,63306455

    282514,8311,4726,3713,227,45216455

    316515,8712,4728,4615,031,65936758

    343016,6213,2229,9716,434,86626960

    381017,6414,2732,0718,539,47377162

    417018,5515,2233,9420,443,78287566

    8754,463,518,565,513,21244637

    10555,004,059,726,816,71454940

    12605,574,6310,928,320,81685243

    14706,085,19

    12,069,9

    24,81935546

    16956,605,78

    13,1711,429,32185950

    220511,368,6920,9314,327,24346051

    250012,249,5222,7716,531,84896253

    274512,9210,1924,2118,335,65286556

    300513,6010,8725,6620,239,65876758

    323014,1411,4226,8721,843,36506960

    1 2 3 4 51 2 3 4 5

    1 2 3 4 5

    1 2 3 4 5

    1 2 3 4 5

    MTL 14+2

    MTL 44+2

    MTL 34+2MTL 24+2

    MTL 54+2

    MoDel

    MoDel

    m3/hkWkWkWkPakPaW

    dB(A)dB(A)

    m3/hkWkWkWkPakPaW

    dB(A)dB(A)

    SpeedAir flowCooling total emissionCooling sensible emissionHeatingDp CoolingDp HeatingFanSound power LwSound pressure (*)

    SpeedAir flowCooling total emissionCooling sensible emissionHeatingDp CoolingDp HeatingFanSound power LwSound pressure (*)

    Sizes 1÷5Main performanceand technical characteristics

    (*) = The sound pressure levels are 9 dB(A) lower than the sound power levels and apply to the reverberant field of a 100 m3 room and a reverberation time of 0.5 sec.

    MTl uNiTS wiTh 4+2 Row coil

    COOLING (summer mode)

    Entering air temperature + 27°C d.b. + 19°C w.b.Water temperature + 7°C E.W.T. + 12°C L.W.T.

    AVAILABLE PRESSURE: 0 Pa

    HEATING (winter mode)

    Entering air temperature + 20°CWater temperature + 70°C E.W.T. + 60°C L.W.T.

    4 pipe units.

    The following standard rating conditions are used:

  • 10

    Maestro

    5432154321543215432154321

    5432154321543215432154321

    6,525,905,324,874,518,898,026,905,884,8710,5610,169,569,068,4113,6013,0312,2111,5810,6817,8516,9015,8815,2214,23

    5,474,844,223,773,437,136,235,154,233,408,237,837,246,766,1810,439,879,108,537,7414,0213,0712,0611,4310,51

    112210159148377761529137911871011837181617481644155814472340224021001991183730702907273126172447

    15,413,310,99,38,130,925,619,314,310,132,630,527,124,621,332,229,726,423,920,530,027,224,222,419,7

    5,775,314,764,364,037,997,226,195,254,359,519,158,598,147,5312,2411,7110,9710,389,5616,0215,1714,2413,6412,73

    5,324,764,113,663,327,016,115,004,073,258,097,687,076,595,98

    10,239,658,878,287,46

    13,6612,7111,7011,0610,14

    992914819749694

    137412411064902748

    163615731477140012952105201418871786164527552609244923452189

    12,710,98,97,56,5

    25,320,915,711,68,1

    26,724,922,119,917,326,324,321,519,416,624,622,219,718,216,0

    4,644,243,773,443,166,425,754,884,113,377,617,296,826,435,949,769,318,688,207,52

    12,7512,0411,2510,7510,01

    4,544,153,703,373,106,295,644,743,802,977,467,156,686,265,649,579,128,437,837,00

    12,5011,8011,0210,389,46

    797729649591544

    1104990840707580

    130912541172110710211679160114931410129321932071193418491721

    8,37,05,74,84,1

    16,613,510,07,25,0

    17,416,114,212,711,017,115,613,712,310,515,814,212,611,510,1

    3,663,332,942,652,435,074,513,783,142,565,985,725,325,004,597,657,276,756,355,799,979,378,718,297,68

    3,593,262,882,602,384,964,423,703,082,505,865,605,214,904,507,507,136,616,225,679,779,198,538,137,53

    630572505457418871775650541440

    1029983915859789

    1316125111611092995

    17151612149814271321

    5,24,43,52,92,510,58,46,14,32,910,910,08,77,86,610,69,68,47,56,39,88,77,66,96,0

    5,745,294,744,334,017,977,186,155,224,329,479,118,558,097,5012,1811,6610,9110,349,5115,9615,1214,1813,5812,68

    5,304,734,103,653,316,996,094,994,073,248,067,667,056,575,9710,209,638,858,277,4513,6312,6911,6811,0510,13

    988909816744691137012341057898743162915661470139112902094200518771779163627442601243923362181

    12,610,88,97,56,525,320,815,611,58,126,724,822,119,917,326,324,221,419,316,624,522,219,718,115,9

    5,174,744,233,863,567,166,435,484,653,838,498,167,657,236,6910,9110,449,769,238,4814,2913,5212,6412,0911,30

    5,074,644,003,553,206,885,964,853,923,107,917,496,886,405,799,989,418,628,037,20

    13,2912,3411,3110,679,77

    889815728665613

    12321106943799659

    146114031316124411511877179616781588145824582326217520801944

    10,38,87,16,05,2

    20,616,912,69,26,4

    21,720,117,816,013,921,319,617,215,613,319,817,915,814,612,8

    4,133,763,343,022,785,725,104,303,602,956,766,476,035,685,238,678,257,677,236,61

    11,3010,649,929,478,79

    4,043,693,272,962,735,605,004,223,532,846,636,345,915,565,128,498,087,527,096,48

    11,0810,439,729,288,61

    710647574520479984877740620507

    116311131038977899

    1491141913191244113719441831170616281512

    6,75,64,53,83,2

    13,310,87,95,73,9

    13,912,811,310,18,6

    13,612,410,99,78,2

    12,611,39,99,17,9

    3,593,252,802,412,134,663,983,322,742,215,285,054,684,394,026,756,415,935,575,068,798,237,647,276,71

    3,523,192,742,372,094,563,903,252,692,175,184,944,594,303,946,626,285,815,464,958,628,077,497,126,58

    617559481415367801684570472381909868805755691

    116111021020958869

    15121416131512501155

    5,04,23,22,52,09,16,64,73,32,28,57,86,86,05,18,37,56,55,84,88,06,85,95,44,6

    MTL13

    MTL13

    MTL23

    MTL23

    MTL33

    MTL33

    MTL43

    MTL43

    MTL53

    MTL53

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    Qv

    Qv

    m3/h

    m3/h

    Speed

    Speed

    MoD.

    MoD.

    WT: 7/12 °C

    WT: 7/12 °C

    WT: 8/13 °C

    WT: 8/13 °C

    WT: 10/15 °C

    WT: 10/15 °C

    WT: 12/17 °C

    WT: 12/17 °C

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    19251640134011409952510206015501165855279025902300208018153400313028552585226544003975354032752905

    19251640134011409952510206015501165855279025902300208018153400313028552585226544003975354032752905

    Sizes 1÷5Cooling emission of 3 row coil

    Cooling emission of 3 row coil

    Entering air temperature: 27°C – R. H.: 50% – Available pressure: 0 Pa

    Entering air temperature: 26°C – R. H.: 50% – Available pressure: 0 Pa

    Note: the power absorption (Watt) at page 16 must be subtracted from the total and sensible cooling emission.

  • 11

    Maestro

    5432154321543215432154321

    5,154,724,233,853,567,146,425,474,623,828,488,147,617,206,6610,8910,399,709,198,4414,2613,4612,6412,0611,25

    5,054,623,983,543,196,845,944,833,913,107,887,476,856,385,779,959,378,588,007,1813,2412,2811,2910,659,74

    88681372766361212281104941795656145813991310123911461872178816691581145124532316217420741935

    10,38,87,16,05,220,616,912,69,26,421,720,117,816,013,921,319,517,215,613,319,817,815,814,612,8

    4,624,223,763,423,156,405,734,864,093,367,587,276,796,415,929,739,288,648,177,49

    12,7312,0011,2110,709,96

    4,534,143,693,353,096,275,624,693,772,967,427,126,666,205,609,549,098,357,766,94

    12,4711,7610,9310,299,38

    795726647588542

    1101986836704579

    130312501168110310181674159614861405128821892064192918411713

    8,37,15,74,84,1

    16,713,610,07,35,1

    17,516,214,312,811,117,215,713,812,410,515,914,312,611,610,1

    3,673,342,952,662,445,084,513,793,152,565,995,735,335,014,607,687,306,776,375,80

    10,009,408,748,337,71

    3,603,272,892,612,394,984,423,713,092,515,875,625,224,914,517,527,156,636,245,689,809,218,578,167,56

    632574507458420874776652543441

    1030986917862791

    1320125511641096997

    17211616150314321326

    5,34,53,52,92,5

    10,78,66,24,43,0

    11,110,28,97,96,8

    10,89,88,57,66,4

    10,08,97,87,16,1

    3,222,922,572,312,124,433,923,262,682,095,204,964,604,313,936,636,285,815,454,938,778,227,637,246,68

    3,162,862,522,272,074,343,843,192,632,045,094,864,504,223,856,506,165,695,344,838,608,067,477,106,55

    5545024423983647616745604623598948537907416771141108199993784815091414131212461149

    4,13,42,72,21,98,26,54,63,22,08,47,76,65,94,98,17,46,35,64,67,76,85,95,34,6

    MTL13

    MTL23

    MTL33

    MTL43

    MTL53

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)Qv

    m3/hSpeedMoD.

    WT: 7/12 °C WT: 8/13 °C WT: 10/15 °C WT: 12/17 °C

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    19251640134011409952510206015501165855279025902300208018153400313028552585226544003975354032752905

    Sizes 1÷5Cooling emission of 3 row coil

    Entering air temperature: 25°C – R. H.: 50% – Available pressure: 0 Pa

    PcPsPcPs

    48%

    R.H. WT:

    46%

    LegendWT = Water temperature

    Pc = Cooling total emission

    Ps = Cooling sensible emission

    Qw = Water flow

    Dp(c) = Water pressure drop

    Speed = Fan speed

    MAX = High speed

    MED = Medium speed

    MIN = Low speed

    Qv = Air flow

    Correction factors for different R.H.

    0,951,000,901,00

    0,941,000,881,00

    7/12°C 8/13°C1,001,001,001,00

    1,001,001,001,00

    10/15°C 12/17°C

    Note: the power absorption (Watt) at page 16 must be subtracted from the total and sensible cooling emission.

  • 12

    Maestro

    5432154321543215432154321

    5432154321543215432154321

    7,647,036,355,785,2010,499,618,256,955,6812,8612,3511,5710,9510,1016,4115,6914,6713,8612,7221,3420,1918,9418,0616,85

    6,105,484,824,283,788,017,165,944,853,859,589,118,397,857,1312,1111,4610,559,858,8916,0314,9513,8013,0311,99

    1313120910929948951804165214191195977221321241990188317372823269925232383218736713473325831062899

    14,112,110,18,47,024,520,815,611,47,829,527,424,221,918,826,524,321,519,316,424,422,019,517,815,7

    6,846,285,665,154,649,418,607,376,205,0611,5311,0610,349,799,0314,7014,0513,1312,3911,3519,1218,0616,9216,1315,03

    5,925,294,634,103,607,776,915,694,613,649,278,798,077,546,82

    11,7011,0410,149,448,48

    15,4314,3413,2012,4411,40

    11771080974885798

    1619147912671067871

    198219021778168515532529241622582132195232883106291127752585

    11,49,88,16,85,6

    19,916,812,69,16,3

    24,022,319,617,715,221,419,717,315,613,219,717,815,714,412,6

    5,404,944,434,003,597,446,765,754,813,909,098,718,117,657,03

    11,5711,0310,279,678,82

    15,0114,1413,2012,5811,71

    5,294,844,313,773,297,296,465,244,193,268,708,227,506,966,25

    10,9410,299,388,697,74

    14,3313,2612,1211,3910,39

    928849762687617

    12791163989827672

    156414971396131612101990189817661664151825812433227021642014

    7,36,25,14,23,4

    12,710,67,85,63,8

    15,214,012,311,19,4

    13,612,410,89,78,2

    12,411,19,89,07,8

    4,183,813,393,042,715,765,204,383,622,927,026,716,225,855,348,918,477,857,366,69

    11,5310,8210,069,548,83

    4,103,733,322,982,655,645,104,293,552,866,886,576,105,735,238,738,307,697,226,56

    11,3010,619,869,358,66

    720655583523466991895753622502

    1207115310701006918

    1533145713501266115119841861173016411519

    4,53,73,02,52,07,76,44,63,22,29,28,47,36,55,58,17,46,45,74,87,46,65,85,24,5

    6,806,275,645,124,619,388,557,336,175,0311,4711,0110,299,748,9714,6213,9713,0612,3111,2919,0417,9716,8316,0614,95

    5,905,294,634,103,607,766,905,694,623,659,268,798,077,546,8211,6811,0310,139,438,4915,4214,3313,1912,4511,41

    117010789708817931613147112611061866197318951770167615432514240322462118194232753090289427632572

    11,49,88,16,75,619,916,812,59,16,224,022,219,517,615,121,319,617,315,513,219,717,715,614,312,6

    6,075,565,014,544,088,367,626,515,464,4510,229,829,168,667,9713,0412,4311,6110,9410,0116,9415,9914,9514,2613,25

    5,735,104,453,923,437,526,665,454,393,458,958,487,767,236,52

    11,2810,629,739,038,09

    14,8313,7512,6211,8910,86

    1044957861781701

    143813111120939766

    175916881576149013712243213819961881172229132750257124532280

    9,27,86,55,44,4

    16,013,410,07,24,9

    19,317,815,714,112,117,115,713,812,410,515,814,112,511,410,0

    4,764,343,883,503,136,575,945,034,183,398,017,667,126,706,14

    10,179,689,008,457,70

    13,1912,4111,5511,0010,18

    4,674,253,813,433,066,435,824,933,993,097,857,516,986,575,989,969,498,828,287,40

    12,9312,1611,3210,789,89

    819747668601538

    11291022865720583

    137713181224115310571749166515481454132522692135198718921752

    5,84,94,03,32,6

    10,08,36,14,32,9

    12,011,09,68,67,3

    10,69,78,57,56,39,78,77,66,96,0

    4,063,533,002,642,355,064,553,813,132,516,155,875,425,094,647,797,396,846,405,79

    10,089,438,758,297,65

    3,983,462,942,592,304,964,463,733,072,466,035,755,314,994,557,637,246,706,275,689,889,258,588,137,50

    699608516455404870782655539431

    10581009932875798

    1339127111761100997

    17331623150614261316

    4,33,32,51,91,56,04,93,52,41,67,16,55,65,04,26,35,74,94,33,65,75,04,44,03,4

    MTL14

    MTL14

    MTL24

    MTL24

    MTL34

    MTL34

    MTL44

    MTL44

    MTL54

    MTL54

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    Qv

    Qv

    m3/h

    m3/h

    Speed

    Speed

    MoD.

    MoD.

    WT: 7/12 °C

    WT: 7/12 °C

    WT: 8/13 °C

    WT: 8/13 °C

    WT: 10/15 °C

    WT: 10/15 °C

    WT: 12/17 °C

    WT: 12/17 °C

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    18351575131511159402360200515351160855274525502265206017953340308528202560224543303920350532402885

    18351575131511159402360200515351160855274525502265206017953340308528202560224543303920350532402885

    Sizes 1÷5Cooling emission of 4 row coil

    Cooling emission of 4 row coil

    Entering air temperature: 27°C – R. H.: 50% – Available pressure: 0 Pa

    Entering air temperature: 26°C – R. H.: 50% – Available pressure: 0 Pa

    Note: the power absorption (Watt) at page 16 must be subtracted from the total and sensible cooling emission.

  • 13

    Maestro

    5432154321543215432154321

    6,055,544,994,524,078,347,606,485,444,4310,209,779,128,637,9412,9912,4111,5610,899,9816,8815,9114,8914,2113,20

    5,705,084,443,913,437,506,645,444,393,458,938,457,747,226,5111,2510,619,719,028,0914,7913,7212,6011,8710,85

    1040953859777699143413061115935762175516801568148413662234213419881874171629032737256124432271

    9,27,96,45,44,415,913,410,07,24,919,317,815,614,112,017,115,713,812,410,515,814,212,511,410,0

    5,384,924,413,993,577,416,745,734,793,899,058,688,087,637,00

    11,5310,9810,229,638,79

    14,9714,1113,1712,5311,65

    5,274,824,273,753,277,266,415,214,183,268,638,167,456,936,22

    10,8610,219,328,647,71

    14,2413,1712,0611,3410,34

    925846759686614

    12751159985824669

    155714931390131212041983188917591656151225762426226521562003

    7,46,25,14,23,4

    12,810,77,95,73,8

    15,314,112,411,19,5

    13,612,510,99,78,2

    12,511,29,99,07,8

    4,203,823,403,052,725,785,224,393,632,937,056,736,235,875,368,948,497,877,386,71

    11,5810,8610,099,588,87

    4,123,743,332,992,675,675,114,303,562,876,906,596,115,755,258,768,327,717,236,57

    11,3510,659,899,398,69

    722656585525468994898755625504

    1212115710721010922

    1537146013531269115319911869173616481525

    4,53,83,12,52,07,86,54,73,32,29,48,67,56,75,68,37,66,55,84,97,66,75,95,34,6

    3,723,362,982,662,365,054,533,772,982,236,115,815,365,024,447,727,326,746,235,44

    10,179,508,798,327,58

    3,643,302,922,612,314,954,443,692,922,185,985,705,254,924,357,577,176,616,115,339,979,318,618,157,43

    63957951245740586977964851238310501000922863764132912591160107293617501634151214301304

    3,52,92,31,91,56,04,83,42,21,37,06,45,54,83,96,25,64,84,13,25,85,14,43,93,3

    MTL14

    MTL24

    MTL34

    MTL44

    MTL54

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)Qv

    m3/hSpeedMoD.

    WT: 7/12 °C WT: 8/13 °C WT: 10/15 °C WT: 12/17 °C

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    18351575131511159402360200515351160855274525502265206017953340308528202560224543303920350532402885

    Sizes 1÷5Cooling emission of 4 row coil

    Entering air temperature: 25°C – R. H.: 50% – Available pressure: 0 Pa

    PcPsPcPs

    48%

    R.H. WT:

    46%

    LegendWT = Water temperature

    Pc = Cooling total emission

    Ps = Cooling sensible emission

    Qw = Water flow

    Dp(c) = Water pressure drop

    Speed = Fan speed

    MAX = High speed

    MED = Medium speed

    MIN = Low speed

    Qv = Air flow

    Correction factors for different R.H.

    0,951,000,901,00

    0,941,000,881,00

    7/12°C 8/13°C1,001,001,001,00

    1,001,001,001,00

    10/15°C 12/17°C

    Note: the power absorption (Watt) at page 16 must be subtracted from the total and sensible cooling emission.

  • 14

    Maestro

    14,2012,7711,229,958,7618,7116,6913,7611,138,7722,3621,2219,5018,2016,4328,2326,6724,4922,7720,4536,4933,9631,3129,5627,08

    11,9910,809,518,447,4415,8814,1711,719,497,4819,0018,0416,6015,5014,0024,0022,6820,8419,4017,4330,9828,8626,6325,1623,06

    9,778,827,786,926,11

    13,0211,659,647,846,20

    15,6214,8513,6712,7811,5619,7518,6717,1616,0114,3925,4523,7321,9120,7219,03

    11,3210,168,917,886,91

    14,8313,2010,848,756,85

    17,6716,7715,3914,3412,9322,2921,0519,2917,9216,0628,8426,8224,6923,2721,30

    9,158,227,226,395,61

    12,0310,728,827,135,60

    14,3713,6312,5111,6710,5318,1317,1215,7014,6013,0923,4321,8020,0718,9417,35

    12211098965856753160914351183957754192318251677156514132428229321061958175931382921269225422329

    1031929818726640136612191007816644163415521427133312042064195117921669149926652482229021631983

    840759669595525

    11201002829674533

    1343127711761099994

    1699160614761377123821892041188417821637

    1947174715321356118925522271186515051178304028842646246622233834362033183083276249604613424640023664

    1574141312411099966

    2070184515171226963

    247123442151200718113119294427002512225140293750345232572984

    9,57,86,14,93,915,212,38,65,83,717,716,113,712,09,915,413,911,810,48,414,012,310,69,58,0

    7,15,84,63,72,9

    11,49,26,44,32,8

    13,212,010,39,07,5

    11,610,48,97,86,4

    10,59,27,97,16,0

    4,94,03,22,62,08,06,54,53,12,09,48,57,26,45,38,27,36,35,54,57,46,55,65,04,2

    23,319,115,011,99,4

    36,929,820,713,98,8

    42,738,732,928,923,837,333,528,524,920,333,929,725,422,819,3

    16,013,110,38,26,525,620,614,39,66,129,526,822,820,116,625,823,219,717,314,123,520,517,615,813,4

    5432154321543215432154321

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    PhQv

    m3/hSpeedMoD.

    MTL14

    MTL24

    MTL34

    MTL44

    MTL54

    WT: 60/50 °C WT: 55/45 °C WT: 50/40 °C WT: 50/45 °C WT: 45/40 °C

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    18351575131511159402360200515351160855274525502265206017953340308528202560224543303920350532402885

    16,2214,6112,7411,3910,3421,5018,8615,5112,6510,0424,9023,7121,8920,4118,5531,4429,7527,3425,5623,0341,0138,2835,3133,4530,72

    1395125710969808891849162213341088863214220391882175515962704255823512198198135273292303728772642

    17,714,611,39,27,733,126,018,112,48,033,330,426,223,119,325,022,619,317,014,129,225,722,220,117,1

    12,3311,139,738,717,9116,4414,4511,929,747,7519,1018,1916,8015,6914,2724,0922,8020,9919,6117,7031,4229,3527,1425,7123,64

    1060957836749681141412431025838666164215641445134912272072196018051687152227022524233422112033

    11,09,17,15,84,8

    20,916,411,47,85,1

    21,119,316,614,612,315,814,312,210,88,9

    18,416,314,112,710,9

    10,399,388,217,366,70

    13,9112,2410,118,286,60

    16,1815,4114,2413,3112,1220,4119,2917,7816,6415,0326,6124,8823,0121,8220,07

    894807706633576

    11961053870712568

    139213251225114410421755165915291431129322882140197918761726

    8,26,85,34,33,6

    15,612,38,65,93,9

    15,814,412,411,09,2

    11,810,79,18,16,7

    13,812,210,59,58,1

    8,447,646,696,005,48

    11,3710,028,306,815,45

    13,2712,6311,6810,939,97

    16,6915,8214,5813,6612,3521,7920,3918,8717,8916,49

    726657575516471978862714585468

    114110871005940857

    1436136012541174106218741753162315391418

    5,74,73,73,02,5

    10,98,66,04,12,7

    11,110,18,77,76,58,37,56,45,74,79,78,57,46,75,7

    9,898,907,766,946,30

    13,1011,509,457,706,10

    15,1914,4613,3412,4311,2919,1618,1116,6515,5614,0124,9723,3021,5020,3818,70

    1701153213351193108322531978162513241050261224872294213819423295311528642677241042954008369835053217

    27,222,417,414,111,850,639,827,718,912,351,246,740,135,429,638,434,629,626,121,544,739,434,030,726,2

    7,987,186,275,615,09

    10,609,317,676,254,97

    12,3111,7110,8110,089,17

    15,5114,6813,5112,6111,3720,2318,8817,4516,5215,18

    137212361079965876

    1824160213191075854

    211820141860173515782668252523242170195634803248300228422611

    18,615,411,99,78,134,927,519,213,18,635,432,327,824,520,526,523,920,518,114,931,027,223,521,318,2

    5432154321543215432154321

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    PhQv

    m3/hSpeedMoD.

    MTL13

    MTL23

    MTL33

    MTL43

    MTL33

    WT: 70/60 °C WT: 60/50 °C WT: 55/45 °C WT: 50/40 °C WT: 50/45 °C WT: 45/40 °C

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    19251640134011409952510206015501165855279025902300208018153400313028552585226544003975354032752905

    Sizes 1÷5Heating emission of 3 row coil

    Heating emission of 4 row coil

    Entering air temperature: 20°C – Available pressure: 0 Pa

    Entering air temperature: 20°C – Available pressure: 0 Pa

    MAX = High speedMED = Medium speedMIN = Low speed

    Legend WT = Water temperaturePh = EmissionQw = Water flow

    Dp(c) = Water pressure dropQv = Air flowSpeed = Fan speed

  • 15

    Maestro

    MTL1

    MTL2

    MTL3

    MTL4

    MTL5

    MTL1

    MTL2

    MTL3

    MTL4

    MTL5

    8,057,446,786,185,5710,339,568,357,145,9012,4411,9811,2810,749,9716,1715,5214,5913,8612,8220,5719,5318,4017,6316,56

    692640583532479888822718614507107010319709248571391133512551192110217691680158315161424

    42,737,131,326,421,962,254,242,431,922,539,036,432,729,926,268,363,557,051,844,963,157,551,647,642,4

    7,266,716,125,595,039,328,647,536,455,3311,2110,8010,179,689,0014,6114,0213,2012,5211,5718,5717,6616,6515,9314,97

    624577527480433802743648555458964929874833774

    1256120611351077995

    15971519143213701287

    36,031,226,422,318,552,645,735,827,019,132,930,727,625,222,057,953,748,243,837,953,248,643,640,235,9

    6,475,995,464,984,498,307,716,735,764,769,999,649,078,648,03

    13,0312,5211,8011,2010,3416,5815,7714,8514,2513,37

    556515470428387714663579495410859829780743691

    112110771015963890

    14261356127712251150

    29,625,721,818,415,343,537,729,622,315,727,125,322,720,818,247,844,539,936,331,544,140,236,133,329,7

    5,675,254,804,383,957,316,785,915,074,208,778,457,967,597,06

    11,4811,0410,379,869,12

    14,6113,8813,0912,5411,78

    488452412377340628583509436361754727685653607988949892848784

    12571193112510781013

    23,820,717,514,812,235,030,523,818,012,721,720,318,216,714,638,635,832,129,225,335,632,429,226,924,0

    4,894,524,133,773,406,305,845,114,393,637,557,286,866,536,079,929,538,978,527,88

    12,6212,0011,3110,8510,19

    420389355324293542502439377312649626590562522853819771732677

    10861032973933876

    18,416,013,611,59,5

    27,223,718,614,09,9

    16,815,714,113,011,330,127,925,122,819,827,725,322,720,918,7

    4,103,803,473,172,86

    5,304,914,303,693,066,336,105,755,485,108,368,037,567,186,65

    10,6310,109,549,148,59

    352326298272246456423370318263544524494472439719691650617572914869820786739

    13,611,810,08,57,120,117,613,810,47,412,411,610,49,68,422,420,818,717,014,820,618,816,915,613,9

    5432154321543215432154321

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    PhQv

    m3/hSpeedMoD.

    WT: 80/70 °C WT: 75/65 °C WT: 70/60 °C WT: 65/55 °C WT: 60/50 °C WT: 55/45 °C

    11,5910,609,628,577,5515,3314,0712,0710,038,0918,4717,6416,4315,5414,2723,9522,8321,2519,9518,1929,9328,3026,4425,1023,30

    997912827737649131812101038862695158915171413133612272060196318271716156525742434227421582004

    20,417,314,411,69,232,828,021,015,010,020,018,416,114,512,435,632,528,425,321,330,427,424,221,919,1

    10,009,178,317,416,5313,2712,1810,478,717,0315,9715,2414,2213,4412,3520,7519,7918,4617,3315,8025,9424,5122,9421,7720,21

    860788715637562

    11411048900749605

    137313111223115610621785170215871490135922312107197318721738

    15,913,411,29,17,2

    25,521,816,511,77,8

    15,514,312,511,39,7

    27,825,422,319,816,723,721,318,917,214,9

    8,417,727,006,255,52

    11,2110,318,877,385,97

    13,4612,8611,9911,3310,4417,5716,7615,6214,6913,4121,9420,7419,4218,4317,13

    723664602538474964887763635513

    115711061031975898

    1511144113431264115318861784167015851473

    11,79,98,36,75,3

    19,016,312,38,75,9

    11,610,69,38,47,2

    20,819,016,714,812,517,715,914,112,811,2

    6,826,265,695,094,509,148,417,256,054,91

    10,9410,449,769,248,51

    14,3713,7212,8012,0411,0117,9016,9315,8715,0814,02

    586538490438387786724623521422941898839795731

    1236118011011035947

    15391456136512971205

    8,16,95,84,73,7

    13,311,48,66,14,18,07,46,55,85,0

    14,513,311,710,48,8

    12,411,29,89,07,8

    6,475,925,374,784,218,577,876,745,604,51

    10,339,859,188,677,96

    13,4012,7711,8811,1710,1716,7315,8214,7914,0313,02

    11121018924822724

    147413531160964776

    177716941580149213702305219620441920174928772720254324142240

    26,722,618,915,212,143,036,627,519,613,126,224,021,119,016,246,642,637,433,328,0

    39,935,831,628,725,0

    5,224,804,373,923,477,076,525,634,723,848,408,047,517,126,57

    11,1710,669,959,388,57

    13,8513,1312,3111,7110,90

    4494133763372996085614844063307226916466135659609178568077371192112910591007938

    5,04,33,62,92,38,47,25,43,92,65,04,64,03,73,19,28,57,46,65,67,87,16,25,75,0

    5432154321543215432154321

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    PhQv

    m3/hSpeedMoD.

    WT: 65/55 °C WT: 60/50 °C WT: 55/45 °C WT: 50/40 °C WT: 45/40 °C WT: 45/35 °C

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    17751530129010909102285196515201155850270025102235204017803295305527902535222542653875347532102865

    16951470126010558752190191015051145845264524552195201017653230300527452500220541703810343031652825

    Sizes 1÷5Heating emission of 1 row additional coil

    Heating emission of 2 row additional coil

    Entering air temperature: 20°C – Available pressure: 0 Pa

    Entering air temperature: 20°C – Available pressure: 0 Pa

    MAX = High speedMED = Medium speedMIN = Low speed

    Legend WT = Water temperaturePh = EmissionQw = Water flow

    Dp(c) = Water pressure dropQv = Air flowSpeed = Fan speed

  • 16

    Maestro

    18351575131511159402360200515351160855274525502265206017953340308528202560224543303920350532402885

    17451480125010258252240192014951150835267024702200200517453250300527402480217543303820342531402805

    1640139011759407302120183514451135815259023802120194516903150292026502400210042053715334030402715

    1530129010758406452000173513801105790250022802040187516253040282025502305202040753595324529302610

    14001175940740560

    1860162013001065755

    239021751945179015452900270024402200192539353465313028102495

    12251020795625–

    1700148011901015700

    227020451840169514602760257523002050180037853315300026752350

    995815–––

    148012751010925–

    213519001720157513552610240521501905167036303145284525302175

    –––––

    1150––––

    198017501590144512352440222519701745152534502940265023501965

    ––––––––––

    180015951440130011052225202517651575140032502680240021301710

    ––––––––––

    162014251280

    ––

    200018001575

    ––

    3005235020801850

    –––––––––––––––

    1780––––

    2705––––

    231204173151130380323268221179519505464426380680600550505445867766689612536

    223194167142118356304254215167510492450413362657587527482425867739660587516

    213184159134109333284239206158498473431398345627566503460405836713634563496

    202174150125102312263222191148481450411381330597541481437387806686607540475

    19016213711695

    288240204177137460427389362316562512459415368777659580

    517454

    174148124106–

    263217184165126438400368344305532485436389348747630554493431

    154130–––

    232191158151–

    415376349326294504453413369331719601528470406

    –––––

    193––––

    393357332310283476427389349314688569501444380

    ––––––––––

    372340317295270447402362329299657533471416353

    ––––––––––

    352323301––

    419378338––

    622492435384–

    –––––––––––––––

    393––––

    583––––

    0 20 40 60 80 100 120 140 160 180 200

    0 20 40 60 80 100 120 140 160 180 200

    5432154321543215432154321

    5432154321543215432154321

    Speed

    Speed

    MoD.

    MoD.

    MTL

    1

    MTL

    1

    MTL

    2

    MTL

    2

    MTL

    3

    MTL

    3

    MTL

    4

    MTL

    4

    MTL

    5

    MTL

    5

    Available pressure (Pa)

    Available pressure (Pa)

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    Sizes 1÷5Air flow (m3/h)

    depending on speed and requested available pressure with 4 row coil

    Power absorption (Watt)depending on air flow and available pressure

  • 17

    Maestro

    0 20 40 60 80 100 120 140 160 180 200

    0 20 40 60 80 100 120 140 160 180 200

    5432154321543215432154321

    5432154321543215432154321

    Speed

    Speed

    MoD.

    MoD.

    MTL

    1

    MTL

    1

    MTL

    2

    MTL

    2

    MTL

    3

    MTL

    3

    MTL

    4

    MTL

    4

    MTL

    5

    MTL

    5

    Available pressure (Pa)

    Available pressure (Pa)

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    MAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MINMAX

    MED

    MIN

    1,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,00

    0,970,970,970,960,930,970,980,980,990,990,980,980,980,980,980,980,980,980,980,981,000,990,990,980,98

    0,940,940,940,910,870,940,950,970,990,970,970,960,970,970,970,970,970,970,970,970,980,970,970,970,97

    0,910,900,900,860,810,920,930,950,970,960,950,940,950,950,950,950,950,950,950,950,970,960,960,950,95

    0,860,850,830,790,740,880,890,920,960,940,930,920,920,930,920,930,930,930,920,920,950,940,940,930,93

    0,790,780,750,71

    –0,830,850,870,930,900,900,890,890,900,890,900,910,900,890,890,930,910,920,900,90

    0,700,67

    –––

    0,760,770,790,88

    –0,870,850,860,860,860,870,870,860,850,850,910,890,890,870,86

    –––––

    0,12––––

    0,830,810,820,820,810,840,830,820,810,800,880,850,860,840,80

    ––––––––––

    0,790,760,770,770,760,790,790,760,760,760,850,810,810,790,74

    ––––––––––

    0,740,710,71

    ––

    0,740,730,71

    ––

    0,810,740,740,72

    –––––––––––––––

    0,69––––

    0,76––––

    1,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,001,00

    0,960,960,960,940,910,960,970,980,990,980,980,980,980,980,980,980,980,980,980,981,000,980,980,980,98

    0,920,920,920,890,830,930,940,960,980,970,960,950,950,960,960,960,960,960,960,950,980,960,970,960,96

    0,880,870,870,820,760,890,900,930,970,950,940,920,930,940,930,940,940,930,930,93

    0,960,940,950,930,93

    0,820,810,790,740,680,840,860,890,940,920,910,890,900,910,900,910,910,900,900,900,930,920,920,900,90

    0,750,730,690,65

    –0,790,800,830,910,870,870,850,860,870,860,870,880,870,850,850,910,890,900,870,86

    0,640,61

    –––

    0,710,720,740,85

    –0,840,810,820,830,820,840,840,820,810,810,880,850,860,840,82

    –––––

    0,07––––

    0,790,760,770,770,760,800,790,770,760,760,850,810,820,790,76

    ––––––––––

    0,740,710,720,710,700,740,740,710,700,710,810,760,760,740,68

    ––––––––––

    0,680,650,66

    ––

    0,690,670,65

    ––

    0,770,690,680,66

    –––––––––––––––

    0,63––––

    0,71––––

    Sizes 1÷5

    Correction factors for Total cooling emission

    Correction factorsfor Sensible cooling emission and Heating emission

  • 18

    Maestro

    0,00

    1,00

    2,00

    3,00

    4,00

    5,00

    6,00

    7,00

    0 500 1000 1500 2000 2500 3000 3500 4000 4500

    MTL 1-2

    MTL 3

    MTL 4

    MTL 5

    0

    10

    20

    30

    40

    50

    60

    70

    0 500 1000 1500 2000 2500 3000 3500 4000 4500

    MTL 1-2MTL 3 MTL 4

    MTL 5

    Sizes 1÷5Water side pressure drop

    The water pressure drop figures referto a mean water temperature of 10°C; for different

    temperatures, multiply the pressure drop figuresby the correction factors K.

    The water pressure drop figures referto a mean water temperature of 60°C; for different

    temperatures, multiply the pressure drop figuresby the correction factors K.

    K 0,94 0,90 0,86 0,82 0,78 0,74 0,70

    20 30 40 50 60 70 80°c

    Water flow (l/h)

    Air flow (m3/h)

    Water flow (l/h)

    Air flow (m3/h)

    Pre

    ssur

    e dr

    op (

    kPa)

    Pre

    ssur

    e dr

    op (

    Pa)

    Pre

    ssur

    e dr

    op (

    Pa)

    Pre

    ssur

    e dr

    op (

    kPa)

    2 pipe units 4 pipe units(heating coil pressure drop)

    Accessory air side pressure drop

    Spigot plenum pressure drop 48 mm G3 filter pressure drop

    K 1,12 1,06 0,94 0,88°c 40 50 70 80

  • 19

    MaestroSizes 6–7Introduction

    CASINGIt is made with 1,2 mm galvanized steel for sizes 6-7, insulated with 10 mm polyolefin (PO) foam(class M1).

    FAN ASSEMBLYConsists of quiet centrifugal fans with two impellers and a directly driven single phase, three speedmotor, 230V 50Hz, with external rotor, capacitor, insulation class B.

    COILIt is manufactured from drawn copper tube and the aluminium fins are mechanically bonded ontothe tube by an expansion process.

    The Maestro range Sabiana (sizes 6-7) is available with the combination of either 4 or 6 row coilswith the possibility to add a 2 row coil (4+2, 6+2 versions for 4 pipe systems).The connections are on the left hand side lookingfrom the air inlet of the unit (see picture anddrawing at page 20).On request the connections can be movedto the other side.

    The heat exchanger is not suitable for usein corrosive atmosphere or in environmentswhere aluminium may be subject to corrosion.

    FILTERThe filter is made of polypropylene cellular fabric regenerating filter.The filter frame of galvanized steel is inserted into sliding guides fastened to the internal structurefor easy insertion and removal of the filter.

    CONDENSATE COLLECTION TRAYIt is made from galvanized steel insulated with 3 mm polyolefin (PO) foam (class M1).

    Construction features

    Following many years of experience in the field of heating and air conditioning, Sabiana hasdeveloped a range of Maestro fan coils for concealed installation and connection to a ductsystem.Sizes 6–7 supply a consistent air flow with static pressure up to 425 Pa to fit most conditions,with the combination of either 4 or 6 row heating coils and 2 or 4 pipe configurations with 2 rowadditional heating coil.The fan assembly has 3 speeds.

    Compliant with ERP 2015 Regulation (EU) No. 327/2011

  • 20

    MaestroSizes 6–7Dimensions, weight and water content

    Weight with packaging (kg)Weight without packaging (kg) Water content (l)

    124

    140

    134

    152

    130

    148

    140

    160

    127

    143

    137

    155

    133

    151

    143

    163

    4R 4+2R 6R 6+2R 4R 4+2R 6R 6+2R 4R 6R 2R

    MTL 6MTL 7

    MoDel

    Main Additional

    CoilDimensions (mm)

    1535

    1535

    1100

    1100

    488

    588

    421

    521

    1393

    1393

    1022

    1022

    1587

    1587

    59

    59

    416

    516

    55

    55

    421

    521

    1 1/4”

    1 1/4”

    1 1/4”

    1 1/4”

    1”

    1”

    1”

    1”

    A B C D E F G H L M N IN INOUT OUT

    MTL 6MTL 7

    MoDel 1 32 4

    7,6

    9,7

    11,1

    13,8

    4,1

    5,5

    FAN SIDE(OUTLET)

    FILTER SIDE(INLET)

    (coil connectionson the left lookingthe air direction)

    Air flow

    STANDARD

    FAN SIDE(OUTLET)

    FILTER SIDE(INLET)

    Left connections (standard)

    Right connections (on request)

    FILTER SIDE(INLET)

    FILTER

    FILTER

    FAN SIDE(OUTLET)

    Wiring terminal board

  • 21

    MaestroSizes 6–7Operating limits

    Motor electrical data (max. absorption)

    Water circuit Maximum water pressure: 1000 kPa (10 bars)MIN. entering water temperature: +5°C

    MAX. entering water temperature: +80°C

    Supply Single phase 230V 50Hz

    Air flow Suitable relative humidity 15-75%

    MIN. entering air temperature: +6°C

    MAX. entering air temperature: +40°C

    MAX. leaving air temperature: +50°C

    230/150Hz

    W

    A

    MTL 6 MTL 7MoDel1437

    6,38

    2817

    12,40

  • 22

    Maestro

    1219013,809,9722,28

    9,014,77156152

    2357019,2414,6131,1616,327,09336960

    3515023,8118,8739,4224,341,21390

    7667

    1186012,338,8119,81

    7,311,95656354

    2333018,5614,0229,7815,024,97507162

    3468022,5217,6237,1322,037,01327

    7768

    1218016,2111,2022,2111,514,77126152

    2357023,4716,9031,1622,227,09336960

    3512529,7522,2039,2734,440,91371

    7667

    1185014,109,5919,73

    9,111,87756354

    2330022,0415,7029,5920,124,61046

    7162

    3460027,5320,2636,7630,336,31455

    7768

    1396021,4515,9535,7414,624,11717

    6859

    2521025,5519,6642,7819,833,31970

    7465

    3741031,1625,0653,2528,949,32737

    8172

    1392021,5316,0535,5014,423,81499

    7162

    2504025,2519,3941,8819,132,01727

    7566

    3698030,3624,2851,3127,146,12376

    8172

    1396026,0918,4435,7418,624,11717

    6859

    2521031,6223,0242,7826,133,31970

    7465

    3735539,2829,7352,9838,948,92679

    8172

    1391026,0818,4835,4118,323,71468

    7162

    2500030,9822,5141,6824,831,71687

    7566

    3690038,0428,6250,9536,345,52325

    8172

    1220013,839,9923,77

    9,04,97186152

    2358019,2814,6435,0116,49,99436960

    3520023,9418,9846,2124,616,31437

    7667

    1188012,428,8820,86

    7,43,95746354

    2338518,7314,1633,5215,39,17787162

    3480022,8917,9843,6022,614,71304

    7768

    1219016,2811,2526,0911,65,77156152

    2357023,4716,9039,5722,212,19336960

    3517029,8922,3253,2734,820,61407

    7667

    1186014,369,8422,58

    9,24,45656354

    2335022,5916,2037,5320,511,07597162

    3474028,2820,9149,7731,418,21314

    7768

    1396021,4516,0439,6114,68,6

    17176859

    2521025,5519,6648,8319,812,51970

    7465

    3748031,2225,1463,3829,120,02817

    8172

    1392521,5416,0539,3414,48,5

    15187162

    2507025,3319,4647,8519,312,11758

    7566

    3710030,6324,5361,1427,618,82460

    8172

    1396026,0918,4444,5718,69,9

    17176859

    2521031,6223,0255,8426,114,81970

    7465

    3743539,5229,9473,6839,524,42764

    8172

    1392026,0918,4944,2018,39,7

    14997162

    2505031,1722,6654,4525,114,21737

    7566

    3703038,4228,9670,6437,122,62410

    8172

    MTL 64+2

    MTL 64+2

    MTL 66+2

    MTL 66+2

    MTL 74+2

    MTL 74+2

    MTL 76+2

    MTL 76+2

    MoDel

    MoDel

    m3/hkWkWkPakWkPaW

    dB(A)dB(A)

    m3/hkWkWkPakWkPaW

    dB(A)dB(A)

    SpeedAir flowCooling total emissionCooling sensible emissionDp CoolingHeatingDp HeatingFanSound power LwSound pressure (*)

    SpeedAir flowCooling total emissionCooling sensible emissionDp CoolingHeatingDp HeatingFanSound power LwSound pressure (*)

    MTL 64

    MTL 64

    MTL 66

    MTL 66

    MTL 74

    MTL 74

    MTL 76

    MTL 76

    MoDel

    MoDel

    m3/hkWkWkPakWkPaW

    dB(A)dB(A)

    m3/hkWkWkPakWkPaW

    dB(A)dB(A)

    SpeedAir flowCooling total emissionCooling sensible emissionDp CoolingHeatingDp HeatingFanSound power LwSound pressure (*)

    SpeedAir flowCooling total emissionCooling sensible emissionDp CoolingHeatingDp HeatingFanSound power LwSound pressure (*)

    Sizes 6–7Main performanceand technical characteristics

    MTl uNiTS wiTh 4+2 AND 6+2 Row coilAVAILABLE PRESSURE: 0 Pa

    AVAILABLE PRESSURE: 150 Pa

    COOLING (summer mode)Entering air temperature + 27°C d.b. + 19°C w.b.Water temperature + 7°C E.W.T. + 12°C L.W.T.

    HEATING (winter mode)Entering air temperature + 20°CWater temperature + 70°C E.W.T. + 60°C L.W.T.

    (*) = The sound pressure levels are 9 dB(A) lower than the sound power levels and apply to the reverberant field of a 100 m3 room and a reverberation time of 0.5 sec.

    4 pipe units. The following standard rating conditions are used:

    2 pipe units. The following standard rating conditions are used:

    AVAILABLE PRESSURE: 0 Pa

    AVAILABLE PRESSURE: 150 Pa

    MTl uNiTS wiTh 4 AND 6 Row coil

    COOLING (summer mode)Entering air temperature + 27°C d.b. + 19°C w.b.Water temperature + 7°C E.W.T. + 12°C L.W.T.

    HEATING (winter mode)Entering air temperature + 20°CWater temperature + 60°C E.W.T. + 50°C L.W.T.

  • 23

    MaestroSizes 6–7

    MAXMEDMINMAXMEDMIN

    MAXMEDMINMAXMEDMIN

    MAXMEDMINMAXMEDMIN

    321321

    321321

    321321

    27,3421,8415,7436,6329,7025,08

    20,6615,7210,8028,3821,8517,85

    470237572707630051084314

    28,118,810,433,222,816,8

    24,4719,5114,0632,7826,5522,39

    19,8014,9310,1627,2820,8316,90

    420833552418563845663852

    22,915,38,5

    27,118,513,6

    19,1415,1510,8625,7820,7117,34

    18,2213,499,00

    25,3419,0015,20

    329226051868443435612982

    14,69,65,3

    17,411,78,5

    14,6611,438,07

    19,8715,7013,05

    14,6611,438,04

    19,8715,7013,05

    252119661387341827002244

    9,05,73,110,87,15,1

    24,3219,4213,9732,6526,4122,26

    19,7714,9510,1927,2620,8316,92

    418333392403561645423830

    22,815,28,427,018,413,5

    21,6617,2012,3629,1023,4719,73

    18,9514,189,57

    26,2219,8716,03

    372529592126500540373394

    18,412,26,7

    21,814,810,9

    16,7913,199,39

    22,7118,0915,10

    16,7912,838,49

    22,7118,0914,44

    288722691616390631112597

    11,57,54,1

    13,89,26,6

    12,789,886,91

    17,3913,6311,26

    12,789,886,91

    17,3913,6311,26

    219717001189299123441936

    7,04,42,38,55,53,9

    21,5817,1312,3029,0223,3719,63

    18,9214,189,5926,1719,8416,02

    371129472116499240203376

    18,412,16,721,814,810,8

    19,1015,0910,8125,7420,6317,29

    18,1213,459,01

    25,1618,9215,18

    328525951859442735492974

    14,79,65,3

    17,511,88,6

    14,7011,488,09

    19,9515,7613,09

    14,7011,488,00

    19,9515,7613,09

    252919741392343127112252

    9,15,83,1

    11,07,25,1

    12,969,545,99

    17,7013,7510,61

    12,969,545,99

    17,7013,7510,61

    223016401031304423651824

    7,24,11,88,85,63,5

    MTL64

    MTL64

    MTL64

    MTL74

    MTL74

    MTL74

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    Qv

    Qv

    Qv

    m3/h

    m3/h

    m3/h

    Speed

    Speed

    Speed

    MoD.

    MoD.

    MoD.

    Cooling emission of 4 row coil

    Cooling emission of 4 row coil

    Cooling emission of 4 row coil

    Entering air temperature: 27°C – R. H.: 50% – Available pressure: 0 Pa

    Entering air temperature: 26°C – R. H.: 50% – Available pressure: 0 Pa

    Entering air temperature: 25°C – R. H.: 50% – Available pressure: 0 Pa

    WT: 7/12 °C

    WT: 7/12 °C

    WT: 7/12 °C

    WT: 8/13 °C

    WT: 8/13 °C

    WT: 8/13 °C

    WT: 10/15 °C

    WT: 10/15 °C

    WT: 10/15 °C

    WT: 12/17 °C

    WT: 12/17 °C

    WT: 12/17 °C

    520035802200748052103960

    520035802200748052103960

    520035802200748052103960

    PcPsPcPs

    48%

    R.H. WT:

    46%

    LegendWT = Water temperature

    Pc = Cooling total emission

    Ps = Cooling sensible emission

    Qw = Water flow

    Dp(c) = Water pressure drop

    Speed = Fan speed

    MAX = High speed

    MED = Medium speed

    MIN = Low speed

    Qv = Air flow

    Correction factors for different R.H.

    0,951,000,901,00

    0,941,000,881,00

    7/12°C 8/13°C1,001,001,001,00

    1,001,001,001,00

    10/15°C 12/17°C

    Note: the power absorption (Watt) at page 16 must be subtracted from the total and sensible cooling emission.

  • 24

    MaestroSizes 6–7

    MAXMEDMINMAXMEDMIN

    MAXMEDMINMAXMEDMIN

    MAXMEDMINMAXMEDMIN

    321321

    321321

    321321

    33,7226,3318,2945,4136,2129,97

    23,8217,9212,0332,7825,1020,26

    579945293146781162285156

    39,725,513,244,929,921,3

    30,2123,6216,4740,6832,4326,89

    22,5616,8711,2831,1623,6819,05

    519640632833699855794625

    32,520,810,936,724,417,4

    23,5418,3512,8231,7925,2420,88

    20,2614,939,84

    28,2121,1116,79

    404931572204546843413591

    20,513,16,9

    23,315,410,9

    17,7613,689,47

    24,1318,9115,53

    17,7613,298,60

    24,1318,9114,90

    305523541628415132522672

    12,27,73,914,19,16,4

    30,0423,4716,3540,5232,2426,70

    22,6016,9211,3231,2123,7419,10

    516740372812696955454592

    32,320,710,836,624,217,3

    26,6720,8414,5536,0028,6423,71

    21,3715,9010,5729,6322,3817,92

    458735852503619249264077

    25,916,68,7

    29,419,513,9

    20,5315,9211,0727,8221,9118,09

    19,2214,069,20

    26,8619,9415,80

    353027391905478537693112

    16,010,25,3

    18,311,98,4

    15,3411,748,06

    20,9316,2813,30

    15,3411,748,06

    20,9316,2813,30

    263920191386360128002287

    9,45,83,010,96,94,8

    26,5620,7314,4735,8828,5223,61

    21,3815,9310,6129,6422,4117,97

    456835662489617249054061

    25,916,68,729,419,413,8

    23,4418,2512,7431,7225,1220,77

    20,2414,959,89

    28,1621,1116,84

    403231392192545543203573

    20,613,16,9

    23,415,410,9

    17,8213,749,51

    24,2319,0015,60

    17,8213,258,61

    24,2318,8614,87

    306523631636416832672684

    12,47,84,0

    14,39,26,5

    13,3510,056,85

    19,1513,9911,38

    13,3510,056,85

    19,1513,9911,38

    229617291179329424061957

    7,34,42,29,35,33,6

    MTL66

    MTL66

    MTL66

    MTL76

    MTL76

    MTL76

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    kW kW l/h kPa

    Pc Ps Qw Dp(c)

    Qv

    Qv

    Qv

    m3/h

    m3/h

    m3/h

    Speed

    Speed

    Speed

    MoD.

    MoD.

    MoD.

    Cooling emission of 6 row coil

    Cooling emission of 6 row coil

    Cooling emission of 6 row coil

    Entering air temperature: 27°C – R. H.: 50% – Available pressure: 0 Pa

    Entering air temperature: 26°C – R. H.: 50% – Available pressure: 0 Pa

    Entering air temperature: 25°C – R. H.: 50% – Available pressure: 0 Pa

    WT: 7/12 °C

    WT: 7/12 °C

    WT: 7/12 °C

    WT: 8/13 °C

    WT: 8/13 °C

    WT: 8/13 °C

    WT: 10/15 °C

    WT: 10/15 °C

    WT: 10/15 °C

    WT: 12/17 °C

    WT: 12/17 °C

    WT: 12/17 °C

    517035702190743552103960

    517035702190743552103960

    517035702190743552103960

    PcPsPcPs

    48%

    R.H. WT:

    46%

    LegendWT = Water temperature

    Pc = Cooling total emission

    Ps = Cooling sensible emission

    Qw = Water flow

    Dp(c) = Water pressure drop

    Speed = Fan speed

    MAX = High speed

    MED = Medium speed

    MIN = Low speed

    Qv = Air flow

    Correction factors for different R.H.

    0,951,000,901,00

    0,941,000,881,00

    7/12°C 8/13°C1,001,001,001,00

    1,001,001,001,00

    10/15°C 12/17°C

    Note: the power absorption (Watt) at page 16 must be subtracted from the total and sensible cooling emission.

  • 25

    Maestro

    WT: 55/45 °C WT: 50/40 °C WT: 50/45 °C WT: 45/40 °C

    MAXMEDMINMAXMEDMIN

    321321

    Qv

    m3/hSpeedMoD.

    MTL66

    MTL76

    kW l/h kPa

    Ph Qw Dp(c)

    kW l/h kPa

    Ph Qw Dp(c)

    kW l/h kPa

    Ph Qw Dp(c)

    kW l/h kPa

    Ph Qw Dp(c)

    45,6033,9922,4963,0247,8738,30

    392229231934542041173293

    15,99,34,418,711,47,6

    37,9228,3618,8652,3039,8531,99

    326124391622449834272751

    11,66,93,3

    13,68,45,6

    41,5330,6620,0757,6043,4234,50

    714352743452990874685934

    47,127,312,756,033,722,3

    33,9725,1616,5347,0935,5628,33

    584343272843809961174873

    33,419,59,139,724,015,9

    517035702190743552103960

    WT: 60/50 °C WT: 55/45 °C WT: 50/40 °C WT: 50/45 °C WT: 45/40 °C

    MAXMEDMINMAXMEDMIN

    46,2135,0123,7763,3848,8339,61

    39,3029,8520,3553,8741,5933,82

    32,3524,6716,9144,2634,3127,99

    36,4527,4518,5150,0738,3931,03

    29,6522,3815,1440,6831,2925,31

    397430112044545041993406

    338025671750463235772908

    278221221455380629512407

    626947223183861366035337

    510038492605699853814353

    16,39,94,920,012,58,6

    12,47,53,8

    15,29,66,6

    8,95,52,8

    10,96,94,8

    38,022,811,246,929,119,8

    26,716,18,032,920,514,0

    321321

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    Ph

    kPa

    Dp(c)

    l/h

    Qw

    kW

    PhQv

    m3/hSpeedMoD.

    MTL64

    MTL74

    520035802200748052103960

    Sizes 6–7

    WT: 65/55 °C

    WT: 50/45 °C

    WT: 60/50 °C

    WT: 45/40 °C

    WT: 55/45 °C

    WT: 45/35 °C

    WT: 50/40 °C

    kW l/h kPa

    Ph Qw Dp(c)

    kW l/h kPa

    Ph Qw Dp(c)

    kW l/h kPa

    Ph Qw Dp(c)

    kW l/h kPa

    Ph Qw Dp(c)

    kW l/h kPa

    Ph Qw Dp(c)

    kW l/h kPa

    Ph Qw Dp(c)

    kW l/h kPa

    Ph Qw Dp(c)

    MAXMEDMINMAXMEDMIN

    MAXMEDMINMAXMEDMIN

    34,7527,5519,7146,9437,7831,58

    298923691695403732492716

    33,422,012,040,027,019,6

    24,0319,0113,5632,4626,1121,77

    413332702332558344903745

    62,541,022,374,950,636,5

    30,1523,9017,1340,6632,7627,39

    259320551473349628172356

    26,317,39,5

    31,421,315,4

    19,4615,4111,0126,2621,1117,64

    334626501894451736323034

    43,628,615,652,135,225,4

    25,4920,2614,5634,3827,7423,24

    219217421252295723851999

    19,813,17,2

    23,616,011,7

    16,1612,929,37

    21,7017,6314,85

    13901111806

    186615161277

    9,06,03,4

    10,77,45,4

    20,8416,5911,9828,0522,7019,06

    179214271030241219521639

    14,09,35,216,711,48,3

    321321

    321321

    Qv

    Qv

    m3/h

    m3/h

    Speed

    Speed

    MoD.

    MoD.

    MTL6..+2

    MTL6..+2

    MTL7..+2

    MTL7..+2

    Heating emission of 4 row coil

    Heating emission of 6 row coil

    Entering air temperature: 20°C – Available pressure: 0 Pa

    Entering air temperature: 20°C – Available pressure: 0 Pa

    Speed = Fan speed

    MAX = High speed

    MED = Medium speed

    MIN = Low speed

    Qv = Air flow

    LegendWT = Water temperature

    Ph = Emission

    Qw = Water flow

    Dp(c) = Water pressure drop

    Heating emission of 2 row additional coil

    Entering air temperature: 20°C – Available pressure: 0 Pa

    512535702180735552103960

    512535702180735552103960

  • 26

    Maestro

    1500 2000 2500 3000 3500 4000 4500 5000 5500 6000

    Air flow (m3/h)

    Pre

    ssur

    e dr

    op (

    Pa)

    0

    10

    20

    30

    40

    50

    60

    70

    80

    90

    6 row coil

    4+2 row coil

    6+2 row coil

    48 mm G3 �lter

    98 mm F6 �lter

    Spigot plenum

    1200

    1100

    1300

    1400

    1500

    1600

    1700

    1800

    1900

    2000

    2100

    2200

    2300

    2400

    2500

    2600

    2700

    2800

    2900

    3000

    3100

    3200

    3300

    3400

    3500

    3600

    3700

    3800

    3900

    4000

    4100

    4200

    4300

    4400

    4500

    4600

    4700

    4800

    4900

    5000

    5100

    5200

    5300

    Air �ow (m3/h)

    Pre

    ssur

    e dr

    op (

    Pa)

    0

    25

    50

    75

    100

    125

    150

    175

    200

    225

    250

    275

    300

    325

    350

    Medium

    High

    Low

    High

    Medium

    Low

    Pressure drop for Maestro 6 (Dp)

    Available pressure for Maestro 64 (with 4 row coil)

    Sizes 6–7

  • 27

    Maestro

    2000

    Air flow (m3/h)

    Pre

    ssur

    e dr

    op (

    Pa)

    0

    10

    20

    30

    40

    50

    60

    70

    80

    90

    100

    2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500

    6 row coil

    4+2 row coil

    6+2 row coil

    48 mm G3 �lter

    98 mm F6 �lter

    Spigot plenum

    1800

    2000

    2200

    2400

    2600

    2800

    3000

    3200

    3400

    3600

    3800

    4000

    4200

    4400

    4600

    4800

    5000

    5200

    5400

    5600

    5800

    6000

    6200

    6400

    6600

    6800

    7000

    7200

    7400

    Air �ow (m3/h)

    Pre

    ssur

    e dr

    op (

    Pa)

    0

    25

    50

    75

    100

    125

    150

    175

    200

    225

    250

    275

    300

    325

    350

    375

    400

    425

    450

    High

    Medium

    Low

    Medium

    High

    Low

    Pressure drop for Maestro 7 (Dp)

    Available pressure for Maestro 74 (with 4 row coil)

    Sizes 6–7

  • 28

    Maestro

    1200

    1100

    1300

    1400

    1500

    1600

    1700

    1800

    1900

    2000

    2100

    2200

    2300

    2400

    2500

    2600

    2700

    2800

    2900

    3000

    3100

    3200

    3300

    3400

    3500

    3600

    3700

    3800

    3900

    4000

    4100

    4200

    4300

    4400

    4500

    4600

    4700

    4800

    4900

    5000

    5100

    5200

    5300

    0

    25

    50

    75

    100

    125

    150

    175

    200

    225

    250

    275

    300

    325

    350

    Medium

    High

    Low

    1500 2000 2500 3000 3500 4000 4500 5000 5500 60000

    10

    20

    30

    40

    50

    60

    70

    80

    90

    6 row coil

    4+2 row coil

    6+2 row coil

    48 mm G3 �lter

    98 mm F6 �lter

    Spigot plenum

    Sizes 6–7

    Air flow (m3/h)

    Air flow (m3/h)

    Pre

    ssur

    e dr

    op (

    Pa)

    Pre

    ssur

    e dr

    op (

    Pa)

    Example of calculation of the emissionat different speeds and air pressure drops

    Model: Maestro MTL 66+2

    Installation characteristics:Summer mode:Air temperature: + 25°C d.b. R.H. 50%Water temperature: + 8°C E.W.T. + 13°C L.W.T.

    Winter mode:Air temperature: + 20°CWater temperature: + 60°C E.W.T. + 50°C L.W.T.

    Requested air flow: 3400 m3/h

    Requested available pressure: 110 Pa

    Emission of Maestro 66+2 working• at medium speed (speed 2)• with 0 Pa of available pressure• with entering air temperature: 25°C- Air flow: 3570 m3/h (page 24 - MTL 66)- Total emission: 18250 W (page 24 - MTL 66)- Sensible emission: 14950 W (page 24 - MTL 66)- Heating: 23900 W (page 25 - MTL 6..+2)

    Calculation of the emissionat requested flow:Define the “correction factor”between the requested air flowand the referring air flow (page 26):

    Correction factor = 3400/3570 = 0,95

    From Diagrams 1 and 2 definethe “variation in % of the emission”using the correction factorcalculated above.

    - For the TOTAL emission = 0,97- For the SENSIBLE emission = 0,96- For the Heating = 0,96

    The obtained emission for the unit is:

    • TOTAL emission = 18250 x 0,97 = 17703 W• SENSIBLE emission = 14950 x 0,96 = 14352 W• Heating = 23900 x 0,96 = 22944 W

    Calculation of the pressure drop:From the “Pressure drop” Diagramof Maestro MTL 64 with 3400 m3/h of air flow,we can find the pressure drop of the unit:

    - ∆P air for the coil 6+2 = 22 Pa- ∆P air for the spigot plenum = 2 PaThe calculation is:- ∆P total air of Maestro = 22+2 = 24 Pa

    Total pressure drop:

    • Spigot pressure drop + Maestro pressure drop = 110 Pa + 24 Pa = 134 Pa

    From the “Available pressure” Diagramof Maestro MTL 64 working at medium speedand with 3400 m3/h of air flow, we can find:

    • Available pressure = 140 Pa = ~ 134 Pa

    Diagram for Maestro MTL 64 “Available pressure”

    Diagram for Maestro MTL 64 “Pressure drop”

    TOTAL SENSIBLE

    0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 0,95 10,3

    0,4

    0,5

    0,6

    0,7

    0,8

    0,90,960,97 1

    0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 0,95 10,3

    0,4

    0,5

    0,6

    0,7

    0,8

    0,9

    10,96

    TOTAL SENSIBLE

    Air flow %

    Air flow %

    Em

    issi

    on %

    Em

    issi

    on %

    Diagram 1 – Cooling emissions

    Correction diagramof cooling emission depending on air

    flow

    Correction diagramof heating emission

    depending on air flow

    Diagram 2 – Heating emission

  • 29

    Maestro

    10001

    50

    10

    5

    2000 3000 4000 5000 10000

    MTL 62

    MTL 7262627272

    10001

    50

    10

    5

    2000 3000 4000 5000 10000

    MTL 64

    MTL 74

    MTL 66

    MTL 7664647474

    6666 7676

    Sizes 6–7Water side pressure drop

    The water pressure drop figures referto a mean water temperature of 10°C; for different

    temperatures, multiply the pressure drop figuresby the correction factors K.

    The water pressure drop figures referto a mean water temperature of 65°C; for different

    temperatures, multiply the pressure drop figuresby the correction factors K.

    2 pipe units

    4 pipe units(heating coil pressure drop)

    K 0,94 0,90 0,86 0,82 0,78 0,74 0,70

    20 30 40 50 60 70 80°c

    K 1,14 1,08 1,02 0,96 0,90°c 40 50 60 70 80

    Water flow (l/h)

    Water flow (l/h)

    Pre

    ssur

    e dr

    op (

    kPa)

    Pre

    ssur

    e dr

    op (

    kPa)

  • 30

    MaestroSizes 1÷7Accessories (optional)

    Model Code

    MTl 1÷7 9034029

    Model BA C Spigots (N°) Spigots (Ø) Code

    MTl 1MTl 2MTl 3MTl 4MTl 5MTl 6MTl 7

    182182182300300300300

    1133113311331445144515351535

    298298348348442472572

    3334444

    250250250250300355355

    9034200903420090342209034230903424090342809034290

    Model BA C Code

    MTl 1MTl 2MTl 3MTl 4MTl 5MTl 6MTl 7

    285285335335410460560

    48484848484848

    100010009881298129813851385

    6034050603405060340526034053603405460340566034057

    Model BA C Code

    MTl 6MTl 7

    460560

    9898

    13851385

    60341976034198

    SFM G3 synthetic filterThe filter is a washable synthetic fibre, flame-proof according to Class F1 DIN 53438.Efficiency of 84%, Eurovent EU3.The filter is supplied as an accessory and must be fitted on the unit on site in place of the standard filter.

    BCM External auxiliary condensate collection tray

    SFM F6 synthetic filterHigh efficiency compact filter in glass microfiber paper, Class F6 in according to EN779.The filter is supplied as an accessoryand must be fitted on the unit on site in place of the standard filter.

    PMM Intake/supply spigot plenumIntake/supply spigot plenumwith 3 spigots (Sizes 1-2-3) or 4 spigots (Sizes 4-5-6-7).

  • 31

    MaestroSizes 1÷7Accessories (optional)

    Model BA Code

    MTl 1MTl 2MTl 3MTl 4MTl 5MTl 6MTl 7

    296296346346421461561

    1138113811381450145015401540

    6034200603420060342016034202603420360342046034205

    GAV Antivibrating connectionIntake/supply antivibrating connection, made oftwo galvanized frames and a PVC flexible connection.

  • 32

    MaestroSizes 1÷7Wall electronic controls

    Dimensions: 135x86x31 mm

    Dimensions: 75x75x30 mm

    Dimensions: 135x86x31 mm

    For Models 1-2 use only the WM-T control code 9066630.For Models 3-4-5-6use the WM-T control code 9066630 + SEL-S code 9079110.

    For Model 7use the WM-T control code 9066630 + 2 speed switches SEL-S code 9079110.

    • ON-OFF switch and manual 3 speed switch.• Manual Summer/Winter switch.• Electronic room thermostat for fan control (ON-OFF).• Electronic room thermostat for water valve control (ON-OFF).• It allows to control the low temperature cut-out thermostat (TMM).• It allows to control the chilled water valve (ON-OFF) and the electric heater (BEM) only in case that hot water is not used in winter.• Presence of a LED signal when the thermostat is on.

    Control power absorption: 0,25 VA.

    iDeNTificATioN coDeWM-T 9066630

    For Models 1-2 use only the WM-3V control code 9066642.For Models 3-4-5-6use the WM-3V control code 9066642 + SEL-S code 9079110.

    For Model 7use the WM-3V control code 9066642 + 2 speed switches SEL-S code 9079110.

    • ON-OFF switch and 3 speed switch, without thermostatic control.• It does not control the valves.

    iDeNTificATioN coDeWM-3V 9066642

    • Remote manual speed control.• Commutator with 4 positions: - OFF - first speed - second speed - third speed

    iDeNTificATioN coDeCOM 9053022

    For Models 1-2 use only the WM-TQR control code 9066631.For Models 3-4-5-6use theWM-TQR control code 9066631 + SEL-S code 9079110.

    For Model 7use theWM-TQR control code 9066631 + 2 speed switches SEL-S code 9079110.

    • ON-OFF switch and manual 3 speed switch.• Manual, automatic or centralized Summer/Winter switch.• Electric heater switch.• Electronic room thermostat for fan control (ON-OFF).• Electronic room thermostat for valve control (ON-OFF).• Simultaneus thermostatic control of the valves and fan.• It allows to control the low temperature cut-out thermostat (NTC).• It allows to control the water valves (ON-OFF) and the electric heater managed as main heating element or as an integration element.• Energy saving function.• Presence of a LED signal when the thermostat is on.

    Control power absorption: 1 VA.