nt-660y1400-a-hm-régul-en.pdf

8/10/2019 NT-660Y1400-A-HM-Rgul-EN.pdf

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EN

HeatMaster

660Y1400-A

SYSTEM CONTROL

25 - 35 - 45 - 70 - 85 - 120 TC

71 - 101 - 201


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TAB LE OF CO NT EN TS

660Y1400-A

GENER AL RECOMMENDATIONS ............................... 3

USER'S GUIDE ..............................................................4

How to use this manual ....................................................................................4

APPLIANCE DESCRIPTION ......................................... 5

MCBA Interface ........................................................................................................5

CONNECTION DIAGRAMS AND ACCESSORIES .......6

High-temperature heating circuit controlled by a roomthermostat ..................................................................................................................6

Installation of two heating circuits controlled by room unitand ZMC-2 module ............................................................................................10

Cascade installation..........................................................................................13

MCBA PARAMETERS FOR THE SPECIALIST ............ 14

Stand-by Mode ( ) ..............................................................................14

Parameter Mode ( ) ...........................................................................16

info Mode ( ) ...........................................................................................17

Code Mode ( ) .......................................................................................20

Setting the parameters ................................................................................ 21

Communication Mode (with code) : ...................................................29

Fan Mode (with code) : ...................................................................................29

Error Mode (with code) : ................................................................................29

BLOCKAGE AND ERROR CODES ..............................30

List of error codes + solutions [in error mode]...........................30


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NOTEThis manual contains important information with respect to the installation and set-up of the boiler.

This manual must be provided to the installer, who will keep it in a safe place.

We accept no liability should any damage result from the failure to comply with the instructions contained in this technical manual.

Essential recommendations for safety

It is prohibited to carry out any modifications to the appliance without the manufacturers prior and written agreement.

The appliance must be set up by a qualified installer, in accordance with applicable standards and regulations.

The installation must comply with the instructions contained in the boiler's installation manual and with the standards and regulationsapplicable to installations.

Failure to comply with the instructions in this manual could result in personal injury or a risk of environmental pollution.

The manufacturer declines all liability for any damage caused as a result of incorrect installation or in the event of the use of appliances oraccessories that are not specified by the manufacturer.

Essential recommendations for the correct operation of the appliance

To guarantee the correct operation of the installation, it is essential to carry out the adjustments in accordance with the instructions in this manual.

In order to ensure that the appliance operates correctly, it is essential to inspect and service the boiler every year.

Faulty parts may only be replaced by genuine factory parts.

If you smell gas: - Immediately isolate the gas supply.

- Open windows and doors to ventilate the area.

- Do not use any electrical appliances and do not operate any switches.

- Immediately notify your gas supplier and/or your installer..

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GENERAL RECOMMENDATIONS


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4660Y1400-A

USER'S GUIDE

HOW TO USE THIS MANUAL

This manual is for the exclusive use of ACV-approved installers.

After a short description of the control module (MCBA) and of the keys used to make the adjustments, the manual includes a section with the installationdiagrams and a list of the accessories required for each specific installation. The electrical connection diagrams are also included as well as the specific settings

of the MCBA to be made using an access code provided by ACV.

The next sections contain the codes available in each mode of the MCBA, as well as the error codes displayed on the MCBA, which will allow the installer totroubleshoot the possible faults.

For any other installation configuration than those in this manual, please contact your ACV representative.


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4 5 6 7 8

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660Y1400-A

APPLIANCE DESCRIPTION

Description

MCBA - Allows to set-up the boiler operation and more specifically, to define therequired temperature of the Domestic Hot Water (DHW) and the Central Heating(CH) and to activate/deactivate the DHW and heating modes using the displayand the following keys:

1. Display: Indicates the modes and appliance settings through the useof various codes.

2. "Reset"key: Allows to reset the appliance.

3. Connector: Allows to connect a laptop equipped with the appropriate

software to the MCBA.4. "Mode" key: Allows to toggle the modes and define various parameters.

5. "Step" key: Allows to scroll through the various functions of a mode.

6. "Store"key: Allows to save the defined settings.

7. "+"key: Allows to increase the displayed value.

8. "-"key: Allows to decrease the displayed value.

MCBA INTERFACE

The MCBAis an electronic control module and a regulator for gas boilers, developed by Honeywell and fitted with a microprocessor.

It includes several basic functions: temperature control, flame monitoring, heating pump control, fan control, 3-way valve control, electrical ignition and boilercontrol.

Its control panel also displays, through codes, the boiler operational condition, the mode in which it is operating and the possible faults in the system. Finally,it allows to set the system up according to the t ype of installation.

Using a special maintenance code to be entered in the MCBA interface, the qualified installers can access parameters and therefore adjust the boiler settingsto specific requirements. The parameters are normally factory-preset for all normal applications.

For more information on how to use the MCBA and on the specific settings, refer to the section "MCBA Parameters for the Specialist", page 14 of this manual.

General remarks

If a fault occurs, the MCBA disables the appliance and displays an error code: the display flashes and the first character is "E"followed by the fault

number.

- Reset the appliance by pressing the "RESET"key of the MCBA interface. - If the error code displays again, refer to the section "Blockage and Error Codes", page 30 of this manual


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MCBA

Cold water

Hot water

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6660Y1400-A

CONNECTION DIAGRAMS AND ACCESSORIES

HIGHTEMPERATURE HEATING CIRCUIT CONTROLLED BY A ROOM THERMOSTAT


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ENCONNECTION DIAGRAMS AND ACCESSORIES

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Required optional material

Applicable to Description Code

All HM TC models Room thermostat ACV 22 10800018

HM 25 / 35 / 45 TCHigh temperature kit DN 25 : comprised of a heating pump, two isolating valves, a check valve,two thermometers.

10800294

HM 70 / 85/ 120 TCHigh temperature kit DN 32 : comprised of a heating pump, two isolating valves, a check valve,

two thermometers.10800296

1

2

2


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Remove this link toconnect the room

thermostat.

1 2 3 4 5 6 7 8 9 10 11 12 131 2 3 4 5 6

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Block diagram for wiring in accordance with applicable standards.


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Setting the MCBA

Initial Adjusted

DESCRIPTION

3. 0 1 3. 0 100: Heating mode OFF01: Heating mode ON

4. 85 4. 85 Preset temperature for the heating circuit water (adjustable between 30 and 85C.

P. 45

. 00

P. 45

. 0000: Using an outdoor sensor and a room thermostat


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Cold water

Hot water

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INSTALLATION OF T WO HEATING CIRCUITS CONTROLLED BY ROOM UNIT AND ZMC2 MODULE

MCBA

M

M

3

3

1

5

7

7

4

2

2

6


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Required optional material

Applicable to Description Code

All HM TC modelsRoom Unit RSC

Delivered with outdoor sensor10800034

All HM TC models ZMC-2 Module (kit)Manages the second heating circuit - alarm contact - only functions in conjunction withthe Room Unit RSC.

10800218X2

All HM TC modelsClip-in interface RMCIEBV3Enables communication between the MCBA and the Room Unit RSC .

10800036

All HM TC models2k VF202 contact sensorFor outlet on controlled circuit

10800045X2

All HM TC modelsRAM 5109 contact thermostatMandatory to protect all the floor heating circuits.

10510900

All HM TC models12k AF120 outdoor sensor

10510100

HM 25 / 35 / 45 TC2 circuit manifold DN 25

With connection pipes and built-in wall mounts

10800208

HM 25 / 35 / 45 TCLow temperature kit DN 25Is comprised of a heating pump, two isolating valves, a check valve, two thermometers and a 3-way valve

with built-in bypass.10800295

HM 70 / 85/ 120 TC2 circuit manifold DN 32

With built-in wall mounts.10800298

HM 70 / 85/ 120 TCManifold connection kit DN 32

Includes two stainless steel hoses 1"1/2 with 1"1/4 reducer10800142

HM 70 / 85/ 120 TCLow temperature kit DN 32Is comprised of a heating pump, two isolating valves, a check valve, two thermometers and a 3-way valve

with built-in bypass.

10800297

X2

HM 70 / 85/ 120 TCServomotor ARA661

Motor for 3-way valve DN 32 with the low-temperature kit.

10800199

X2

3

2

1

4

56

7

6

7

6

7


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ZMC-2(230 Volt)

A B V F 0 VE 0

VF202

12345678910111213

2

1

BUS A

BUS B

BUS A

BUS B

BUSB

BUSA

BUSB

BUSA

ZMC-2(230 Volt)

A B V F 0 VE 0

VF202

L1L 2 3 N

NPE

VA

N N N

M

230 Volt - 6A

50Hz

L1L 2 3 N

NPE

VA

N N N

M

230 Volt - 6A

50Hz

Block diagram for wiring in accordance withapplicable standards.

10800036: Interface address 0

= 0

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Setting the MCBA

Initial AdjustedDESCRIPTION

1. 60 1. 60 Maximum temperature of preset Domestic Hot Water temperature

2. 0 1 2. 0 100: DHW mode OFF 01: DHW mode ON

3. 0 1 3. 0 100: Heating mode OFF 01: Heating mode ON

4. 85 4. 85 Maximum temperature of the heating circuit (must be higher than the DHW temperature.

CASCADE INSTALLATION

For information on the installation of several HeatMaster TCboilers in a cascade, please contact your ACV representative.


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MCBA PARAMETERS FOR THE SPECIALIST

STANDBY MODE

When the boiler is switched on, it starts up in Stand-by mode, as shown in the figure above.

This is the standard mode of the MCBA. The MCBA automatically returns to this mode af ter 20 minutes if no key is pressed on the MCBA inter face. Thenew parameters will become active.

The first digit indicates the boilers current status, depending on the situation of the boiler and the burner. The last two digits indicate the boilertemperature.

Status Boiler Function

0 Standby, no heat demand

1 Fan pre-purge/post-purge

2 Ignition

3 Operation of the burner for heating

4 Operation of the burner for domestic hot water production

5 Waiting for a signal from the air pressure switch or to obtain number of start revolutions.

6 The burner is off because the set value has been reached. There is still a demand for heat..

7 Heating pump time delay after demand for heating.

8 Heating pump time delay after demand for DHW.

9 Blocked burner: refer to "Blockage and Error Codes", page 30


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ENMCBA PARAMETERS FOR THE SPECIALIST

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If the burner is blocked for one of the above reasons, the display toggles between " 9"and the temperature (last two digits) and bwith the error

code

Once the cause of the blocking has been resolved, the burner starts up automatically after a maximum of 150 seconds..

Status Boiler Function

Internal adjustment Three-way valve

Boiler burner on - temperature is maintained

Test function: max RPM in CH mode.

Test function: min RPM in CH mode.

Test function: burner on with fixed fan speed


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MCBA PARAMETERS FO R THE SPECIALIST

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PARAMETER MODE

SETTING THE MCBA PARAMETERSTo access the Parameter mode when the system is in Standby mode, press the MODE key once.

To scroll through the list of parameters press the STEPkey. To modify the value of the parameter, use the +or -keys.

Then, press the STOREkey to save the modified value. The screen will flash once to confirm the data has been

saved.

To activate the modified parameters, press MODEagain (this will switch you to Info mode). However, if you do notpress any key, the system returns to Standby mode after 20 minutes and activates the changes.

Factory settings

STEP Display Parameter Description HM 25 / 35 / 45 / 70 / 85 /120 TC HM 71 / 101 / 201

1. 67 Setting the hot water temperature 1. 60 1. 90

2. 0 1

Hot water production DHW

00= OFF

01= ON

2. 0 1 2. 0 1

3. 0 1

Switching heating On/Off

00= OFF

01= ON

3. 0 1 3. 0 1

4. 70Maximum temperature in central heating modeCH 4. 85 4. 90

DISPLAY

MODE



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INFO MODE

INFORMATION ON THE INSTALLATIONTo switch from Stand-bymode to Infomode, press the MODE key twice

Press the STEP key until the desired information is displayed.

The dot located behind the f irst position flashes to indicate that the boiler is in Infomode.

DISPLAY

MODE

MODE

STEP Display Parameter Description

1. 60 Flow temperature T1 in C

2. 50 Return temperature T2 in C

3. 65 DHW temperature T3 in C

4. 03 Outside temperature T4 in C

5. 55 Flue gas temperature T5 in C

6. 45 Flow temperature set-point calculated in C

7. 00 Rate of increase of flow temperature in C/S

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8. 00 Rate of increase of return temperature in C/S

9. 00 Rate of increase of DHW temperature in C/S

A. 34 Flow temperature of 2nd central heating circuit

N/A

C. 00 N/A

N/A

E. 00 Ionisation current

F. 00 N/A

N/A

H. 42 Internal MCBA temperature

I. 00 Number of CHstarts X 10000



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Number of CHstarts X 100

Number ofCHstarts X 1

Number of hours of CHoperation X 10000



Number of DHWstarts X 10000



Number of hours of DHWoperation X 10000





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CODE MODE

ENTERING THE CODEBy entering the code you can access fromParameter 10 to Parameter 113 and consult the

communication mode, the fan speed mode and

the Errormode.

Only ACV approved installers know the

access code. For more information, please contact

our after-sales service.

To access the Code mode, press simultaneously on MODEand STEP.

(Only inStand-by mode!]

Press once on theSTEPkey and the screen displays C

in the first position then random characters in the third and fourth positions.

Press on"+"or "-"key to change the code

Press the STOREkey, the screen flashes

briefly to indicate that the code has been accepted.

Press the MODEkeyuntil the desired

mode appears.

MODE STEP

STEP

+ -

or

STORE



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SETTING THE PARAMETERSOnly accessible using the code

Factory settings

STEP Display Parameter Description HM 25 / 35 / 45 / 70 / 85 / 120 TC HM 71 / 101 / 201

P. 1 0 Minimum central heating temperature using outdoor sensor.. . 60 . 60

P. 1 1 Minimum outdoor temperature [adjustment of the heating curve]. .-10 . 00

P. 12 Maximum outdoor temperature [adjustment of the heating curve]. . 18 . 20

P. 13 Frost protection temperature. . 0 1 . 05

P. 14 Correction for outside temperature. . 00 . 00

P. 15 Maximum flow temperature of the 2ndcircuit. . 50 . 60

P. 16 Minimum flow temperature of the 2ndcircuit. . 20 . 30

P. 17 Hystrsis of the 2ndcircuit temperature. . 03 . 0 1

P. 18

T lock: 00= DISABLED

Locks the heat demand, if the heating set-point T is lower than theparameter value..

. 00 . 00



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SETTING THE PARAMETER: only accessible using the code

Factory settings

STEP Display Parameter Description HM 25 TC HM 35 TC HM 45 TC

P. 19 Booster 00= OFF [minute]. . 00 . 00 . 00

P. 20 Night time central heating reduction C. . 1 0 . 1 0 . 1 0

P. 21Increase of the primary temperature set point togenerate hot water.. . 20 . 20 . 20

P. 22Max. fan speed in heatingmode [rpm. X 100.

Natural gas . 44 . 63 . 68

Propane . 4 1 . 65 . 69

P. 23Max. fan speed in centralheating mode [rpm.].

Natural gas . 00 . 00 . 00

Propane . 00 . 00 . 00

P. 24

Max fan speed in domestic hotwater mode[rpm X 100.

Natural gas . 44 . 63 . 68

Propane . 4 1 . 63 . 69

P. 25Min. fan speed in DHW mode[rpm].

Natural gas . 00 . 00 . 00

Propane . 00 . 00 . 00

P. 26

Min fan speed in domestic hotwater mode

[rpm X 100.

Natural gas . 20 . 20 . 20

Propane . 24 . 24 . 24

P. 27Min fan speed[rpm X 100.

Natural gas . 00 . 00 . 00

Propane . 00 . 00 . 00



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Factory settings

HM 70 TC HM 85 TC HM 120 TC HM 71 HM 101 HM 201

. 00 . 00 . 00 . 00 . 00 . 00

. 1 0 . 1 0 . 1 0 . 1 0 . 1 0 . 1 0

. 1 0 . 1 0 . 1 0 . 05 . 05 . 05

. 49 . 60 . 53 . 46 . 60 . 52

. 45 . 55 . 53 . 42 . 54 . 47

. 00 . 00 . 00 . 00 . 00 . 00

. 00 . 00 . 00 . 00 . 00 . 00

. 49 . 65 . 53 . 46 . 60 . 59

. 45 . 60 . 53 . 42 . 54 . 53

. 00 . 00 . 00 . 00 . 00 . 00

. 00 . 00 . 00 . 00 . 00 . 00

. 1 9 . 1 9 . 1 3 . 1 4 . 1 5 . 1 5

. 1 9 . 1 9 . 1 3 . 1 4 . 1 5 . 1 5

. 00 . 00 . 00 . 00 . 00 . 00

. 00 . 00 . 00 . 00 . 00 . 00



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SETTING THE PARAMETER: only accessible using the code

Factory settings


P. 28

Fan speed during ignition[rpm X 100.

Natural gas . 36 . 36 . 36

Propane . 36 . 36 . 36

P. 29 Fan speed during slow start [rpm. X 100 . 30 . 30 . 30

P. 30Min. power time after start-up in CH mode [sec.X 9,0 . 00 . 00 . 00

P. 32Central heating pump over run 00= 10 sec.min. . 00 . 00 . 00

P. 33 Domestic hot water pump over run sec. X 10,2. . 1 1 . 1 1 . 1 1

P. 34 CH hysteresis on. . 02 . 02 . 02

P. 35 CH hysteresis off. . 03 . 03 . 03

P. 36 DHW hysteresis on. . 00 . 00 . 00

P. 37 Burner trigger hysteresis (DHW). . 06 . 06 . 06

P. 38 DHW detection hysteresis on. . 05 . 05 . 05

P. 39 DHW detection hysteresis off. . 00 . 00 . 00

P. 40 Central heating block time sec. X 10,2. . 05 . 05 . 05



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Factory settings


. 39 . 39 . 44 . 35 . 42 . 37

. 39 . 39 . 44 . 32 . 38 . 32

. 30 . 30 . 30 . 30 . 30 . 30

. 00 . 00 . 18 . 00 . 00 . 00

. 00 . 00 . 00 . 00 . 00 . 00

. 1 1 . 1 1 . 1 1 . 1 1 . 1 1 . 1 1

. 02 . 02 . 02 . 0 1 . 0 1 . 0 1

. 03 . 03 . 03 . 03 . 03 . 03

. 00 . 00 . 00 . 0 1 . 0 1 . 0 1

. 06 . 06 . 06 . 03 . 03 . 03

. 05 . 05 . 05 . 04 . 04 . 04

. 00 . 00 . 00 . 0 1 . 0 1 . 0 1

. 05 . 05 . 05 . 00 . 00 . 00



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Factory settings


P. 41 Domestic hot water block time sec . X 10,2. . 00 . 00 . 00

P. 42 DHW CH locking time [sec. x 10,2]. . 00 . 00 . 00

P. 43 Max. operating time in DHW mode min. . 00 . 00 . 00

P. 45

00: High temperature circuit - heating pump controlled by room thermos-tat - DHW priority active.

50: Controlled circuit [outdoor sensor and AM3-11 module] - circulatorcontrolled by the room thermostat - DHW priority inactive.

. 00 . 00 . 00

P. 46DHW PRODUCTION TYPE:

This parameter may be modified in any way on a HeatMaster . 02 . 02 . 02

P. 47 Manual fan speed (test) .-0 1 .-0 1 .-0 1

P. 531st: special pump [0 = disabled]

2ndposition: minimum disable cycle [0 = disabled]. 00 . 00 . 00

P. 57 Pre-spark [sec. . 00 . 00 . 00

P. 64 Extra pre-sweep [sec. . 25 . 25 . 25

P. 65 Post ventilation [sec. . 30 . 30 . 30

P. 66 Fan speed during post-ventilation tr=min. X 100 . 25 . 25 . 25

P. 76Opening time of the2 ndCH circuit valve[sec. X 15 . 1 0 . 1 0 . 1 0

P. 77 Factor "I"of the 2nd

CH circuit . 1 0 . 1 0 . 1 0

P. 78 Fan factor "I"(raise) . 20 . 20 . 20

P. 79 Fan factor "I"(lower) . 1 0 . 1 0 . 1 0

P. 83 Max. T5 temperature limit . C. . 120 . 120 . 120



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Factory settings


. 00 . 00 . 00 . 00 . 00 . 00

. 00 . 00 . 00 . 00 . 00 . 00

. 00 . 00 . 00 . 00 . 00 . 00

. 00 . 00 . 00 . 00 . 00 . 00

. 02 . 02 . 02 . 1 2 . 1 2 . 1 2

.-0 1 .-0 1 .-0 1 .-0 1 .-0 1 .-0 1

. 00 . 00 . 00 . 00 . 00 . 00

. 00 . 00 . 00 . 00 . 00 . 00

. 25 . 25 . 25 . 25 . 25 . 25

. 30 . 30 . 30 . 30 . 30 . 30

. 25 . 25 . 25 . 30 . 30 . 30

. 1 0 . 1 0 . 1 0 . 1 6 . 1 6 . 1 6

. 1 0 . 1 0 . 1 0 . 1 0 . 1 0 . 1 0

. 40 . 40 . 1 0 . 60 . 60 . 1 0

. 20 . 20 . 05 . 1 0 . 1 0 . 50

.1 20 .1 20 .1 20 .1 20 .1 20 .1 20



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Factory settings

STEP Display Parameter Description HM 25 TC HM 35 TC HM 45 TC HM 70 TC HM 85 TC HM 120 TC HM 71 HM 101 HM 201

P. 84Max. T6 temperature limit. C . 80 . 80 . 80 . 80 . 80 . 80 . 80 . 80 . 80

P. 87Maximum dT1/

dt [x 0.1 C/sec.]. 30 . 30 . 30 . 30 . 30 . 30 . 30 . 30 . 30

P. 89Maximum dT3/dt [x 0.1 C/sec.] . 20 . 20 . 20 . 20 . 20 . 20 . 20 . 20 . 20

P. 90 Difference T1 - T2 for modulation . 10 . 10 . 10 . 10 . 10 . 10 . 1 5 . 1 5 . 1 5

P. 96Pulses per rotation/PWM frequen-cy . 92 . 92 . 92 . 92 . 92 . 92 . 92 . 92 . 93

P. 97 External ignition/start attempts . 05 . 05 . 05 . 05 . 05 . 05 . 05 . 05 . 05

P. 100Maximum NTC1-NTC2 time [sec.X 15] . 40 . 40 . 40 . 40 . 40 . 40 . 40 . 40 . 40

P. 101Minimum to maximum time in CHmode [sec.] . 60 . 60 . 60 . 60 . 60 . 60 . 60 . 60 . 60

P. 105 System 1 options .-120 .-120 .-120 .-120 .-120 . 08 . -128 . -128 . -128

P. 106 System 2 options . 108 . 108 . 108 . 108 . 108 . 108 . 1 1 6 . 1 1 6 . 1 1 6

P. 109 Protection options 2 . 32 . 32 . 32 . 32 . 32 . 32 . 32 . 32 . 32

P. 11 3Additional parameter 0[Value + 256] . 1 19 . 1 19 . 1 19 . 1 19 . 1 19 . 247 . 127 . 127 . 127



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COMMUNICATION MODE with code :This mode indicates communication between the boiler and the control module.

MODE Display STEP Display Parameter Description

No communication

Communication only between the boiler module and the optional control module.

Communication between all the connected appliances.

The interfa ce kit and the progr ammable room ther mostat are availa ble as an option .

FAN MODE with code :This mode indicates the current fan speed.


FAN 5500 The current speed of the fan is 5,500 rpm.

ERROR MODE with code :This mode indicates the most recent error, as well as the status of the boiler and the values at the time of this error.


1 36 Error code at last lockout

2 00 Boiler status at the time of the error

3 00 T1 temperature at the time of the error

4 00 T2 temperature at the time of the error

5 00 Hot water temperature T3 at the time of the error

6 00 Outdoor temperature T4 at the time of the error

EN BLOCKAGE AND ERROR CODES


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LIST OF ERROR CODES + SOLUTIONS IN ERROR MODE

If a fault occurs during operation, the system lock s out and the display starts to flash. The first character is an E or b and the following two indicate the codeof this fault, as indicated in the table below.

To unlock the system:

Press "RESET" on the MCBA interface.

If the fault repeats, check the error codes below to solve the problem.

Codes Fault description Fault solutions

E 00 Abnormal flame signal detected1. Check the wiring (short circuit in the 24 V wiring)2. Check the electrode

3. Replace the MCBA (water damage)

E 02 No flame presence after five start-up attempts1. Check the ignition wiring

2. Check the electrode and its p osition3. Check the burner gas level

E 03 Gas valve or triac error Replace the rectifier or the gas valve

E 04 Durable locking Press RESET

E 05 No flame detection or poor feed current quality1. Check the electrode gap2. Check resistance k of the electrode cable

3. Stabilisation of the current

E 06 Detection of an Input error Check the Input and press RESET

E 07 Gas valve relay error If the problem persists after two RESET attempts, replace the MCBA

E 08 The air pressure switch did not close Check the air pressure switch

E 1 1 EPROM error If the problem persists after two RESET attempts, replace the MCBA

E 12 Max input thermostat open or 24 V fuse has blown1. Check the limit thermostat2. Check the 24 Volt fuse of the MCBA

3. Link 12-13 missing

E 13 Internal error If the problem persists after two RESET ATTEMPTS, replace the MCBA

E 14 Water in the 24 Volt circuit Check the 24 Volt circuit and dry if necessary [sensors, terminal, etc.]

ENBLOCKAGE AND ERROR CODES


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E 15 Internal error If the problem persists after two RESET attempts, replace the MCBA



E 18 T1 > 110C1. Check the NTC wiring and replace if necessary2. If the NTC1 sensor is OK, check if there is water flow in the boiler

E 19 T2 > 110C Check the NTC wiring and replace if necessary

The NTC1 and NTC2 sensors are the wrong way round Switch NTC1 with NTC2

E 25 T1 Gradient too high1. Check if the pump is running

2. If there is no problem with the pump, bleed the system

Gas pressure switch or low-water pressure switch open Check the gas pressure or the water pressure and the respective switches

Excessive temperature of the pump control module1. Pump control overheated2. Check the functionality of the pump (flow)

3. Check the pump for dirt

Boiler pump switch not activated, pump nonfunctional /

blockedCheck the functionality of the p ump, pump does not run.

E 28 No tachometer signal from the fan1. Check the PWM connection

2. Check the fan wiring3. If the problem persists after two RESET attempts, replace the fan. Otherwise change the MCBA

E 29 The fans tachometer signal does not drop back to 01. Check the draught in the flue pipe2. If the draught is sufficient, replace the fan

E 30Maximum temperature difference between T1 and T2 is

too highCheck the water flow rate

EN BLOCKAGE AND ERROR CODES


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E 3 1 Short-circuit NTC11. Check the connection of the NTC1 sensor

2. Check the wiring of the NTC1 sensor3. If the problem persists replace the NTC1 sensor

E 32 Short-circuit NTC21. Check the connection of the NTC2 sensor2. Check the wiring of the NTC2 sensor

3. If the problem persists replace the NTC2 sensor

E 33 Short-circuit NTC31. Check the connection of the NTC3 sensor

2. Check the wiring of the NTC3 sensor


E 35 Short-circuit NTC51. Check the connection of the NTC5 sensor2. Check the wiring of the NTC5 sensor


E 36 NTC1 open circuit1. Check the connection of the NTC1 sensor



E 37 NTC2 open circuit1. Check the connection of the NTC2 sensor2. Check the wiring of the NTC2 sensor







Value of EPROM parameters out of tolerance If the problem persists after two RESET attempts , reprogramme the MCBA


E 52 Flue gas temperature too high NTC51. Check the connection of the NTC5 sensor


E 60 Error during reading of the parameters1. Press "RESET"

2. If the error persists, replace the MCBA

ENBLOCKAGE AND ERROR CODES


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33660Y1400-A


E 6 1 Air pressure switch closed when it should have opened Check the air pressure switch

Water pressure Check the water pressure

Incorrect fan speed during start-up1. Check the supply voltage of the MCBA2. If you detect no problems with it, replace the fan

E 83 Temperature of the NTC6 sensor too high Check the 3-way valve or the valve motor

E 1 1 3 Network frequency out of tolerance Check the mains frequency

E 1 1 4 Conflicting or invalid cascade address Check the cascade address

E 1 1 5 Internal error If the problem persists after two RESET attempts, replace the MCBA

Deviation of the mains frequency > 1.5 Hz Check the mains frequency

Opening of air pressure switch during burner operation Check the air pressure switch

Ionisation current too low during burner operation Measure the ionisation current

Gas pressure switch opened during burner operation Check the gas pressure switch

E 1 22 NTC1 or NTC2 sensor deviation Check the NTC1 and NTC2 sensors

E 1 2 3 NTC1 or NTC2 sensor faulty Check the NTC1 and NTC2 sensors

E 1 24 NTC1 or NTC2 sensor stuck Check the NTC1 and NTC2 sensors

nt-660y1400-a-hm-régul-en.pdf

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