im_ekh_tcm135-213764.pdf

INSTALLATION MANUAL

EKHBH008BB3V3EKHBH008BB6V3EKHBH008BB6WNEKHBH008BB6T1EKHBH008BB9WNEKHBH008BB9T1

EKHBX008BB3V3EKHBX008BB6V3EKHBX008BB6WNEKHBX008BB6T1EKHBX008BB9WN

Indoor unit for air to water heat pump system

90

30

3

4

3548

142 101

502

23

45

48 39

9636

1

1-1/2" MBSP

1" MBSP

895

922

830

469

260

B B

T T

2

350

300

500

1

2x2x1x 1x 1x1 2 3 4 5

1

2

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kin

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S

01ar

e in

confo

rmity

with t

he fo

llowing

stan

dard(s

) or oth

er norm

ative

docu

ment(s

), prov

ided t

hat th

ese a

re us

ed in

acco

rdanc

e with

our

instru

ctions

:02

der/d

en fo

lgend

en No

rm(en

) oder e

inem an

deren

Norm

doku

ment

oder

-doku

mente

n ents

prich

t/ents

preche

n, un

ter de

r Vor

auss

etzun

g,da

sie g

em

unser

en An

weisu

ngen

einge

setzt w

erden

:03

sont

confo

rmes

la/a

ux no

rme(s

) ou au

tre(s) d

ocume

nt(s) no

rmatif(s

), pour

autan

t qu'ils

soient u

tiliss c

onfor

mm

ent

nos in

struc

tions

:04

confo

rm de

volge

nde n

orm(en

) of

n of m

eer an

dere b

indende

docum

enten

zijn, op

voorw

aarde

dat ze

wor

den g

ebrui

kt ove

reen

kom

stigon

ze in

struc

ties:

05es

tn en

confo

rmida

d con

la(s)

siguient

e(s) no

rma(s)

u otro(

s) docu

mento

(s) nor

mati

vo(s),

siemp

re que

sean u

tilizado

s de a

cuerdo

con

nues

tras in

struc

cione

s:06

sono

con

form

i al(i)

seguen

te(i) st

andard

(s) o a

ltro(i) d

ocume

nto(i) a

caratt

ere no

rmati

vo, a

patto

che v

enga

no us

ati in

confor

mit

alleno

stre i

struz

ioni:

07

()

()

(

)

()

,

:

08es

to em

confo

rmida

de co

m a(s

) seguin

te(s) no

rma(s)

ou out

ro(s) do

cument

o(s) no

rmativo

(s), de

sde qu

e estes

sejam

utiliza

dos de

acor

do co

m as

nossa

s instr

ues:

09

,

:10

over

holde

r flg

ende

stan

dard(e

r) eller

andet/a

ndre r

etnings

givend

e do

kume

nt(er),

foruds

at at

disse

anve

ndes

i he

nhold

til v

ore

instru

kser:

11re

spektiv

e utr

ustni

ng r

utfr

d i v

eren

sstm

melse

med

och f

ljer f

ljande

standa

rd(er) e

ller and

ra no

rmgiv

ande

doku

ment,

unde

rfr

utstt

ning a

tt anv

ndnin

g sker

i ve

rens

stmm

else m

ed v

ra ins

truktio

ner:

12re

spektiv

e uts

tyr er

i ove

rens

stemm

else m

ed f

lgend

e stan

dard(e

r) eller

andre n

ormgiv

ende

doku

ment(e

r), und

er for

utsse

tning

av a

tdis

se br

ukes

i hen

hold

til vre

instru

kser:

13va

staav

at se

uraav

ien s

tanda

rdien

ja m

uiden

ohjeel

listen d

okume

nttien

vaatim

uksia

ede

llytte

n, ett

niit

k

ytet

n oh

jeidem

mem

ukais

esti:

14za

pe

dpok

ladu,

e js

ou vy

uv

ny v

soula

du s

naim

i pok

yny,

odp

ovd

aj n

sled

ujcm

nor

mm

neb

o no

rmat

ivnm

dok

umen

tm

:15

u sk

ladu

sa sl

ijede

im st

anda

rdom

(ima)

ili d

rugim

nor

mat

ivnim

dok

umen

tom

(ima)

, uz u

vjet d

a se

oni

koris

te u

sklad

u s n

aim

upu

tam

a:

16m

egfe

lelne

k az a

lbbi

szab

vny

(ok)

nak v

agy e

gyb

irn

yad

dok

umen

tum

(ok)

nak,

ha a

zoka

t el

rs s

zerin

t has

znlj

k:

17sp

eniaj

wy

mog

i nas

tpu

jcyc

h no

rm i

innyc

h do

kum

ent

w no

rmali

zacy

jnych

, pod

war

unkie

m

e u

ywan

e s

zgo

dnie

z na

szym

iins

trukc

jami:

18su

nt n

conf

orm

itate

cu u

rmt

orul

(urm

toa

rele)

stan

dard

(e) s

au a

lt(e)

doc

umen

t(e) n

orm

ativ(

e), c

u co

ndiia

ca a

ceste

a s

fie u

tiliza

te n

conf

orm

itate

cu in

struc

iunil

e no

astre

19sk

ladni

z nas

lednji

mi s

tand

ardi

in dr

ugim

i nor

mat

ivi, p

od p

ogoje

m, d

a se

upo

rablj

ajo v

sklad

u z n

aim

i nav

odili:

20on

vasta

vuse

s jr

gmis(

t)e st

anda

rdi(t

e)ga

vi te

iste

norm

atiiv

sete

dok

umen

tideg

a, ku

i neid

kasu

tata

kse

vasta

valt m

eie ju

hend

itele:

21

,

,

:22

atitin

ka e

miau

nur

odytu

s sta

ndar

tus i

r (ar

ba) k

itus n

orm

inius

dok

umen

tus s

u s

lyga,

kad

yra

naud

ojam

i pag

al m

s

nuro

dym

us:

23ta

d, ja

lieto

ti atb

ilsto

i ra

ot

ja no

rd

jumiem

, atb

ilst s

ekojo

iem

stan

darti

em u

n cit

iem n

orm

atvi

em d

okum

entie

m:

24s

v zh

ode

s nas

ledov

nou(

mi)

norm

ou(a

mi)

alebo

inm

(i) n

orm

atvn

ym(i)

dok

umen

tom

(am

i), za

pre

dpok

ladu,

e sa

pou

vaj

v s

lade

s na

im n

vod

om:

25r

nn

, tali

mat

larm

za g

re

kulla

nlm

as k

oulu

yla a

a

daki

stand

artla

r ve

norm

beli

rten

belge

lerle

uyum

ludur

:

01Dir

ective

s, as

am

ende

d.02

Direk

tiven,

gem

nde

rung.

03Dir

ective

s, tel

les qu

e mod

ies.

04Ric

htlijne

n, zoa

ls gea

mend

eerd.

05Dir

ectiva

s, se

gn lo

enme

ndad

o.06

Dirett

ive,

com

e da

mod

ica.

07

v

,

.08

Direc

tivas,

confo

rme

altera

o em

.09

.

10Dir

ektive

r, m

ed se

nere

ndri

nger.

11Dir

ektiv,

med

fret

agna

ndri

ngar.

12Dir

ektive

r, m

ed fo

retat

te en

dring

er.13

Direkt

iivej, s

ellaisin

a kuin n

e ovat

muute

ttuina

.14

v plat

nm

znn

.15

Smjer

nice,

kako

je iz

mije

njeno

.16

irny

elv(e

k) s

md

ost

saik

rend

elkez

seit

.17

z p

niejsz

ymi p

opra

wkam

i.18

Dire

ctive

lor, c

u am

enda

men

tele

resp

ectiv

e.

19Di

rekti

ve z

vsem

i spr

emem

bam

i.20

Dire

ktiivi

d ko

os m

uuda

tuste

ga.

21

,

.

22Di

rekty

vose

su p

apild

ymais

.23

Dire

ktv

s un

to p

apild

injum

os.

24Sm

ernic

e, v

platn

om zn

en.

25De

itir

ilmi

halle

riyle

Yne

tmeli

kler.

01foll

owing

the p

rovisio

ns of

:02

gem

den

Vors

chrift

en de

r:03

confo

rmm

ent a

ux stip

ulation

s des:

04ov

eree

nkom

stig de

bepa

lingen

van:

05sig

uiend

o las d

isposi

cione

s de:

06se

cond

o le p

rescri

zioni

per:

07

v

v

v:08

de ac

ordo c

om o

previs

to em

:09

:

10un

der ia

gttag

else a

f best

emme

lserne

i:11

enligt

villko

ren

i:12

gitt i h

enho

ld til b

estem

melse

ne i:

13no

udatt

aen m

ry

ksi:

14za

dod

ren

usta

nove

n p

edp

isu:

15pr

ema

odre

dbam

a:16

kve

ti a(z):

17zg

odnie

z po

stano

wien

iami D

yrek

tyw:

18n

urm

a pr

eved

erilo

r:

19ob

upo

teva

nju d

olob

:20

vasta

valt n

uet

ele:

21

:

22lai

kant

is nu

osta

t, p

ateik

iam:

23iev

rojo

t pra

sbas

, kas

not

eikta

s:24

odr

iavaj

c usta

nove

nia:

25bu

nun

kou

llarn

a uy

gun

olara

k:

01 No

te *

as se

t out

in

an

d judge

d positiv

ely by

acco

rding to

the C

ertic

ate .02

Hinwe

is *wie

in der

a

ufgef

hrt un

d von

pos

itiv

beurte

ilt gem

Ze

rtikat

.03

Rema

rque *

tel que

dni

dans

e

t valu

posi

tiveme

nt par

con

form

ment

au Ce

rticat

.

04 Be

merk

*zo

als ve

rmeld

in en p

ositief

beoor

deeld d

oor

o

vere

enkom

stig Ce

rticaa

t

.

05 No

ta *

como

se es

tablec

e en y e

s valo

rado

positiv

amen

te por

d

e acue

rdo co

n el

Certi

cado .

06 No

ta *

deline

ato ne

l e

giudic

ato po

sitivam

ente

da sec

ondo

il Cert

icato

.

07

*

.

08 No

ta *

tal com

o esta

beleci

do em

e

com

o pare

cer

positiv

o de de

acordo

com o

Certi

cado .

09

*

.10

Bem

rk *

som

anfr

t i

og

positiv

t vurde

ret af

i

henh

old til

Certi

kat .

11 I

nform

ation

*en

ligt och

godkn

ts av en

ligt

Cer ti

katet

.

12 M

erk *

som

det fre

mkom

mer i

o

g gjenn

om pos

itiv bed

mm

else a

v

ifl

ge Se

rtikat

.

13 Hu

om *

jotka on

esitetty

asiakir

jassa ja jotk

a o

n hyv

ksyny

t Sert

ikaat

in muka

isesti.

14

Pozn

mka

*jak

bylo

uved

eno v

a

pozit

ivn z

jitn

o

v so

uladu

s os

vd

enm

.

15

Napo

mena

*ka

ko je

izlo

eno u

i

pozit

ivno o

cijen

jeno o

d str

ane pr

ema C

ertif

ikatu

.

16

Megje

gyz

s *a(

z) alap

jn, a

(z) iga

zolta

a me

gfelel

st,

a(z)

t

ans

tvn

y sze

rint.

17

Uwag

a *zg

odnie

z do

kume

ntacj

,

pozy

tywn

opini

i

wiad

ectw

em .18

No

t *

aa c

um es

te sta

bilit

n

i ap

recia

t poz

itiv

de n c

onfor

mitat

e cu C

ertif

icatu

l

.19

Op

omba

*ko

t je do

loen

o v in o

dobr

eno s

stra

ni v

sklad

u s ce

rtifik

atom

.

20

Mrk

us *

nagu

on n

idatud

doku

mend

is ja h

eaks

kii

detud

j

rgi

vasta

valt s

ertif

ikaad

ile .

21

*

C

.22

Pa

staba

*ka

ip nu

statyt

a

ir ka

ip tei

giama

i nus

prs

ta pa

gal S

ertif

ikat

.

23

Piez

mes

*k

nor

dts un

atbil

stoi

p

ozitv

ajam

vrt

jumam

sask

a a

r ser

tifik

tu .24

Po

znm

ka *

ako b

olo uv

eden

v a po

zitvn

e zist

en v

slad

e s o

sved

enm

.

25

Not *

d

a be

lirtild

ii g

ibi v

e Se

rtifik

asn

ag

re

tara

fnda

n olu

mlu

olara

kde

erle

ndiril

dii g

ibi.

DA

IKIN

.TCF

.02

5D10

/10-

2010

K

EMA

(NB0

344)

2082

543.

0551

-QUA

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C

EN60

335-

2-40

,

3PW57792-1

Jean

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euse

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Gen

era

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Ost

end,

1st

of D

ecem

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010

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06/95

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Elec

trom

agne

tic C

ompa

tibilit

y 200

4/108

/EC

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1, 2,

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01 a

decla

res un

der it

s sole

resp

onsib

ility th

at the

equip

ment

to wh

ich th

is dec

larati

on re

lates

:02

d

erkl

rt au

f sein

e allei

nige V

eran

twor

tung,

dass

die Au

srs

tung f

r die

diese

Erklr

ung b

estimm

t ist:

03

f d

clare

sous

sa se

ule re

spon

sabili

t qu

e lq

uipem

ent v

is pa

r la pr

sen

te d

clarat

ion:

04 l

ver

klaart

hierb

ij op eig

en exc

lusiev

e ve

rantw

oorde

lijkheid

dat de

appar

atuur w

aaro

p deze

verkl

aring

betre

kking

heeft

:05

e de

clara

bajo s

u nica

respon

sabilida

d que

el equi

po al q

ue hac

e refer

encia

la

decla

racin

:06

i di

chiar

a so

tto la

prop

ria re

sponsa

bilit

che gli

appa

recchi

a cui

rife

rita qu

esta d

ichiar

azion

e:07

g

:

08

p de

clara

sob s

ua ex

clusiv

a re

spon

sabili

dade

que o

s equ

ipame

ntos a

que e

sta de

clara

o se

refer

e:

09 u

,

,

,

:10

q e

rklr

er so

m en

eans

varlig

, at u

dstyre

t, som

er om

fattet

af de

nne e

rklr

ing:

11

s de

klarer

ar i e

gensk

ap av

huvu

dans

varig,

att ut

rustni

ngen

som

berr

s av

denn

a dek

larati

on in

neb

r att:

12

n e

rklr

er et

fullste

ndig a

nsvar

for a

t det

utstyr

som

berr

es a

v de

nne d

eklar

asjon

, inneb

rer at

:13

j ilm

oittaa

yksin

omaa

n oma

lla vas

tuullaa

n, ett

tm

n ilm

oituk

sen t

arkoit

tamat

laittee

t:14

c p

rohla

uje

ve sv

pln

od

pov

dnos

ti, e

zaz

en,

k nm

u se

toto

pro

hle

n vz

tahu

je:15

y iz

javlju

je po

d isk

ljuiv

o vla

stito

m o

dgov

orno

u

da o

prem

a na

koju

se o

va iz

java

odno

si:16

h te

ljes f

elels

sge

tuda

tba

n kij

elent

i, hog

y a b

eren

dez

sek,

mely

ekre

e n

yilat

koza

t von

atko

zik:

17 m

dek

laruje

na

was

n w

ycz

n o

dpow

iedzia

lno

, e

urz

dzen

ia, kt

ryc

h ta

dek

larac

ja do

tyczy

:18

r d

eclar

pe

pro

prie

rsp

unde

re c

ech

ipam

ente

le la

care

se re

fer

ace

ast

dec

lara

ie:19

o z

vso

odgo

vorn

ostjo

izjav

lja, d

a je

opre

ma

napr

av, n

a ka

tero

se iz

java

nana

a:

20 x

kinn

itab

oma

tiel

ikul v

astu

tuse

l, et k

eso

leva

dekla

ratsi

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Installation manual1

EKHBH/X008BBIndoor unit for air to water heat pump system

4PW62570-1B 05.2011

CONTENTS Page

1. Denitions.................................................................................. 21.1. Meaning of warnings and symbols................................................. 21.2. Meaning of used terms .................................................................. 2

2. General safety precautions........................................................ 23. Introduction................................................................................ 3

3.1. General information........................................................................ 33.2. Scope of this manual ..................................................................... 43.3. Model identication ........................................................................ 43.4. Typical application examples.......................................................... 5

Application 1 .................................................................................. 5Application 2 .................................................................................. 5Application 3 .................................................................................. 6Application 4 .................................................................................. 7Application 5 .................................................................................. 7Application 6 .................................................................................. 9

4. Accessories ............................................................................. 104.1. Accessories supplied with the indoor unit .................................... 10

5. Overview of the indoor unit...................................................... 105.1. Opening the indoor unit................................................................ 105.2. Main components......................................................................... 115.3. Switch box main components ...................................................... 125.4. Functional diagram....................................................................... 12

6. Installation of the indoor unit.................................................... 136.1. Selecting an installation location.................................................. 136.2. Dimensions and service space .................................................... 136.3. Inspecting, handling and unpacking the unit ................................ 146.4. Mounting the indoor unit .............................................................. 146.5. Installation of the EKHBDP drain pan kit

(only for EKHBX models) ............................................................. 156.6. Refrigerant pipework.................................................................... 156.7. Water pipework ............................................................................ 15

Checking the water circuit ............................................................ 156.8. General precautions concerning water circuit .............................. 15

Checking the water volume and expansion vesselpre-pressure................................................................................. 16Setting the pre-pressure of the expansion vessel ........................ 17Connecting the water circuit......................................................... 17

6.9. Charging water............................................................................. 176.10. Piping insulation........................................................................... 18

7. Electrical wiring work............................................................... 187.1. Precautions on electrical wiring work........................................... 187.2. Internal wiring - Parts table .......................................................... 187.3. System overview of eld wiring.................................................... 19

Field wiring guidelines.................................................................. 19Connection of the indoor unit power supply andcommunication cable ................................................................... 20Connection of the backup heater power supply ........................... 20Connection of the thermostat cable ............................................. 21Connection of the valve control cables ........................................ 21Connection of the bottom plate heater......................................... 21Connection to a benet kWh rate power supply........................... 22

7.4. Relocation of the digital controller................................................ 23Wiring specications .................................................................... 23Mounting ...................................................................................... 23

8. Start-up and conguration ....................................................... 238.1. DIP switch settings overview........................................................ 238.2. Room thermostat installation conguration.................................. 248.3. Pump operation conguration ...................................................... 248.4. Domestic hot water tank installation conguration ....................... 258.5. Initial start-up at low outdoor ambient temperatures.................... 258.6. Pre-operation checks ................................................................... 25

Checks before initial start-up ....................................................... 258.7. Powering up the indoor unit ......................................................... 268.8. Setting the pump speed ............................................................... 268.9. Field settings................................................................................ 26

Procedure .................................................................................... 26Detailed description ..................................................................... 27

8.10. Field settings table ....................................................................... 39

9. Test run and nal check........................................................... 439.1. Final check................................................................................... 439.2. Test run operation (manual) ......................................................... 43

Procedure .................................................................................... 439.3. Underoor heating screed dry-out program................................. 43

Disclaimer .................................................................................... 43Field settings................................................................................ 43Getting started ............................................................................. 44

10. Maintenance and service......................................................... 4510.1. Maintenance activities.................................................................. 45

Cautions before obtaining maintenance and service ................... 45Opening the unit........................................................................... 45Maintenance and service ............................................................. 45

11. Troubleshooting ....................................................................... 4611.1. General guidelines ....................................................................... 4611.2. General symptoms....................................................................... 4611.3. Error codes .................................................................................. 48

12. Technical specications ........................................................... 5012.1. General ........................................................................................ 5012.2. Electrical specications................................................................ 50

Appendix........................................................................................ 513. Introduction.............................................................................. 51

3.1. General information ..................................................................... 513.4. Typical application examples........................................................ 52

Application 2 ................................................................................ 525. Overview of the indoor unit ...................................................... 53

5.2. Main components......................................................................... 536. Installation of the indoor unit.................................................... 53

6.8. General precautions concerning water circuit .............................. 53Checking the water volume and expansion vesselpre-pressure................................................................................. 53

7. Electrical wiring work ............................................................... 537.3. System overview of eld wiring.................................................... 53

Connection to a benet kWh rate power supply........................... 538. Start-up and conguration ....................................................... 53

8.5. Re-start at low outdoor ambient temperatures............................. 538.9. Field settings................................................................................ 538.10. Field settings table ....................................................................... 56

11. Troubleshooting ....................................................................... 5811.2. General symptoms....................................................................... 58

Thank you for purchasing this indoor unit.The original instructions are written in English. All other languagesare translations of the original instructions.

EKHBH008BB***EKHBX008BB*** Indoor unit for air to water heat pump system Installation manual

CAREFULLY READ THESE INSTRUCTIONS BEFOREINSTALLATION. THEY WILL TELL YOU HOW TO INSTALLAND HOW TO CONFIGURE THE UNIT PROPERLY.KEEP THIS MANUAL IN A HANDY PLACE FOR FUTUREREFERENCE.THE UNIT DESCRIBED IN THIS MANUAL IS DESIGNEDFOR INDOOR INSTALLATION ONLY AND FOR AMBIENTTEMPERATURES RANGING 4C~35C.

1. DEFINITIONS Optional equipment: EKHBH/X008BBIndoor unit for air to water heat pump system4PW62570-1B 05.2011


1.1. Meaning of warnings and symbols

Warnings in this manual are classied according to their severity andprobability of occurrence.

Some types of danger are represented by special symbols:

1.2. Meaning of used terms

Installation manual:

Instruction manual specied for a certain product or application,explaining how to install, congure and maintain it.Operation manual:Instruction manual specied for a certain product or application,explaining how to operate it.Maintenance instructions:

Instruction manual specied for a certain product or application,which explains (if relevant) how to install, congure, operate and/ormaintain the product or application.Dealer:

Sales distributor for products as per the subject of this manual.Installer:

Technical skilled person who is qualied to install products as per thesubject of this manual.User:

Person who is owner of the product and/or operates the product.Service company:Qualied company which can perform or coordinate the requiredservice to the unit.Applicable legislation:All international, European, national and local directives, laws,regulations and/or codes which are relevant and applicable for acertain product or domain.

Accessories:

Equipment which is delivered with the unit and which needs to beinstalled according to instructions in the documentation.

Equipment which can optionally be combined to the products as perthe subject of this manual.Field supply:Equipment which needs to be installed according to instructions inthis manual, but which are not supplied by Daikin.

2. GENERAL SAFETY PRECAUTIONS

The precautions here, all cover very important topics, so be sure tofollow them carefully.

All activities described in this manual shall be carried out by aninstaller and in accordance with the applicable legislation.Be sure to wear adequate personal protection equipment (protectiongloves, safety glasses, ) when performing installation, maintenanceor service to the unit.

If not sure of installation procedures or operation of the unit, alwayscontact your local dealer for advice and information.

Improper installation or attachment of equipment or accessoriescould result in electric shock, short-circuit, leaks, re or other damageto the equipment. Be sure only to use accessories and optionalequipment made by Daikin which are specially designed for use withthe products as of subject in this manual and have them installed byan installer.

DANGERIndicates an imminently hazardous situation which, if notavoided, will result in death or serious injury.WARNINGIndicates a potentially hazardous situation which, if notavoided, could result in death or serious injury.CAUTIONIndicates a potentially hazardous situation which, if notavoided, may result in minor or moderate injury. It may alsobe used to alert against unsafe practices.

NOTICEIndicates situations that may result in equipment orproperty-damage accidents only.

INFORMATIONThis symbol identies useful tips or additional information.

Electric current.

Danger of burning and scalding.

DANGER: ELECTRICAL SHOCKSwitch off all power supply before removing the switch boxservice panel or before making any connections ortouching electrical parts.Do not touch any switch with wet ngers. Touching a switchwith wet ngers can cause electrical shock. Beforetouching electrical parts, turn off all applicable powersupply.To avoid electric shock, be sure to disconnect the powersupply 1 minute or more before servicing the electricalparts. Even after 1 minute, always measure the voltage atthe terminals of main circuit capacitors or electrical partsand, before touching, be sure that those voltages are50 V DC or less.When service panels are removed, live parts can easily betouched by accident. Never leave the unit unattendedduring installation or servicing when the service panel isremoved.

DANGER: DO NOT TOUCH PIPING AND INTERNALPARTSDo not touch the refrigerant piping, water piping or internalparts during and immediately after operation. The pipingand internal parts may be hot or cold depending on theworking condition of the unit.Your hand may suffer burns or frostbite if you touch thepiping or internal parts. To avoid injury, give the piping andinternal parts time to return to normal temperature or, ifyou must touch them, be sure to wear protective gloves.

Heating/cooling units and heating only units(1)WARNINGInstallation manual3


4PW62570-1B 05.2011

3. INTRODUCTION

3.1. General information

The unit is the indoor part of the air to water ERHQ or ERLQ heatpumps. This unit is designed for wall mounted indoor installation. See"6.1. Selecting an installation location" on page 13. The unit can becombined with Daikin fan coil units, oor heating applications, lowtemperature radiators, Daikin domestic water heating applicationsand Daikin solar kit for domestic hot water applications.

For installations with restricted power supply, the indoor unit can becongured to limit the power consumption.There are 2 possibilities to limit the power consumption: allow simultaneous operation of outdoor unit and backup heater

only or outdoor unit and booster heater only by priority setting[4-01] (see "[4] Backup/booster heater operation and spaceheating off temperature" on page 28),

allow operation of backup heater only, booster heater only oroutdoor unit only (see "Appendix" on page 51) by [d-02] (see"[d] Restricted power supply condition mode/Local shift valueweather dependent" on page 55).

The unit range consists of two main versions: a heating/cooling(EKHBX) version and a heating only (EKHBH) version.Both versions are delivered with an integrated backup heater foradditional heating capacity during low outdoor temperatures. Thebackup heater also serves as a backup in case of malfunctioning ofthe outdoor unit. The backup heater models are available for aheating capacity of 3, 6 and 9 kW, and depending on the heatingcapacity for three different power supply specications.

1 Heat pump capacity2 Required heating capacity (site dependent)3 Additional heating capacity provided by the backup heater4 Equilibriumtemperature (can be set through the user

interface, refer to "8.9. Field settings" on page 26)TA Ambient (outdoor) temperaturePH Heating capacity

Domestic hot water tank (option)(2)An optional domestic hot water tank can be connected to the indoorunit. The domestic hot water tank is available in 2 types: tank with built-in electrical booster heater (EKHW*) in 3 different

sizes: 150, 200 and 300 litre, tank without electrical booster heater (EKHTS) in 2 different

sizes: 200 and 260 litre.

Refer to the domestic hot water tank installation manual for furtherdetails.

Never directly touch any accidental leakingrefrigerant. This could result in severe wounds causedby frostbite.

Do not touch the refrigerant pipes during andimmediately after operation as the refrigerant pipesmay be hot or cold, depending on the condition of therefrigerant owing through the refrigerant piping,compressor, and other refrigerant cycle parts. Yourhands may suffer burns or frostbite if you touch therefrigerant pipes. To avoid injury, give the pipes time toreturn to normal temperature or, if you must touchthem, be sure to wear proper gloves.

CAUTIONDo not rinse the unit. This may cause electric shocks orre.

INFORMATIONAll information and settings in the manual are applicable forall applications, except the chapters with following footnoteindication: "When the unit is congured for restricted powersupply condition mode, see "Appendix" on page 51".

NOTICERestricted power supply condition mode can only be usedfor a tank with built-in electrical booster heater (EKHW*).

(1) When the unit is congured for restricted power supply condition mode, see "Appendix" on page 51.

Indoor unit model Backup heater capacityBackup heater

nominal voltageEKHB*008BB3V3 3 kW 1x 230 VEKHB*008BB6V3 6 kW 1x 230 VEKHB*008BB6WN 6 kW 3x 400 VEKHB*008BB9WN 9 kW 3x 400 VEKHB*008BB6T1 6 kW 3x 230 VEKHB*008BB9T1 9 kW 3x 230 V


TA

43

1

2

PH

Drain pan kit (option) 3.2. Scope of this manualEKHBH/X008BBIndoor unit for air to water heat pump system4PW62570-1B 05.2011


For heating/cooling versions (EKHBX), it is necessary to install theEKHBDP drain pan kit.

For more information concerning the drain pan kit, refer to"6.5. Installation of the EKHBDP drain pan kit (only for EKHBXmodels)" on page 15.Solar kit for domestic hot water tank (option)For information concerning the EKSOLHW solar kit, refer to theinstallation manual of that kit.

Digital I/O PCB kit (option)An optional EKRP1HB digital I/O PCB can be connected to theindoor unit and allows: remote alarm output, heating/cooling ON/OFF output, bivalent operation (permission signal for the auxiliary boiler) or

additional external backup heater permission signal.Refer to the operation manual of the indoor unit and to the installationmanual of the digital I/O PCB for more information.Refer to the wiring diagram or connection diagram for connecting thisPCB to the unit.Room thermostat kit (option)An optional room thermostat EKRTW, EKRTWA, or EKRTR can beconnected to the indoor unit. Refer to the installation manual of theroom thermostat for more information.

Bottom plate heater (option)

Possible combinations

Connection to a benet kWh rate power supply(1)

This equipment allows for connection to benet kWh rate powersupply delivery systems. Full control of the unit will remain possibleeven in case the benet kWh rate power supply is of the type thatpower supply is interrupted. Refer to "Connection to a benet kWhrate power supply" on page 22 for more details.

This manual does NOT include the selection procedure and the watersystem design procedure. Only some precautions and tips and tricksabout the design of the water circuit are given in a separate chapterof this manual.

Once the selection is done and the water system is designed, thismanual describes the procedures for handling, installing andconnecting the EKHBH/X units. This manual has been prepared toensure adequate maintenance of the unit, and it will provide help ifproblems occur.

3.3. Model identification

Indoor unit

Drain pan kit (optional)

INFORMATIONUse the EKSOLHW solar kit only in combination with theEKHW* domestic hot water tank.Connection between EKSOLHW and EKHTS domestic hotwater tank is NOT possible.

Connectable heatersEKBPHT08 EKBPHT08BA

EKHBH/X008BB Possible Possible(a)

(a) Recommended.

EKHBH/X_BB

ERHQ_BA Possible(a)

(a) If a bottom plate heater is required, see "Bottom plate heater (option)" on page 4.ERLQ_BA Possible


INFORMATIONRefer to the installation manual of the outdoor unit for itemsnot described in this manual.The operation of the indoor unit is described in the indoorunit operation manual.

EK HB X 008 BB 3 V3

Backup heater nominal voltage: V3 = 1P, 230 VWN = 3P, 400 VT1 = 3P, 230 V

Backup heater capacity (kW)Series

Indication of heating/cooling capacity (kW)(a)

(a) For exact values, refer to "12. Technical specications" on page 50.

X = heating and cooling,H = heating only

Hydro boxEuropean kit

EK HB DP 150

Drain panHydro box

European kit

3.4. Typical application examples Application 2(1)Installation manual5


4PW62570-1B 05.2011

The application examples given below are for illustration purposesonly.

Application 1

Space heating only application with the room thermostat connectedto the indoor unit.

1 Outdoor unit2 Indoor unit3 Heat exchanger4 Backup heater5 Pump6 Shut-off valve7 Collector (eld supply)

FHL1...3 Floor heating loopT Room thermostat (optional)

Pump operation and space heatingWhen the room thermostat (T) is connected to the indoor unit, thepump (5) will operate when there is a heating request from the roomthermostat, and the outdoor unit will start operating to achieve thetarget leaving water temperature as set on the user interface.When the room temperature is above the thermostat set point, theoutdoor unit and pump will stop operating.

Space heating only application without room thermostat connected tothe indoor unit. The temperature in each room is controlled by a valveon each water circuit. Domestic hot water is provided through thedomestic hot water tank which is connected to the indoor unit.

1 Outdoor unit2 Indoor unit3 Heat exchanger4 Backup heater(2)5 Pump6 Shut-off valve7 Motorised 3-way valve (delivered with domestic hot water

tank)8 Collector (eld supply)9 By-pass valve (eld supply)

10 Domestic hot water tank (optional)11 Booster heater(3)12 Heat exchanger coil

FHL1...3 Floor heating loopT1...3 Individual room thermostat (optional)M1...3 Individual motorised valve to control the oor heating loop

(eld supply)

Pump operationWith no thermostat connected to the indoor unit (2), the pump (5) canbe congured to operate either as long as the indoor unit is on, oruntil the required water temperature is reached.

Space heatingThe outdoor unit (1) will operate to achieve the target leaving watertemperature as set on the user interface.

NOTICEMake sure to connect the thermostat wires to the correctterminals (see "Connection of the thermostat cable" onpage 21) and to congure the DIP switch toggle switchescorrectly (see "8.2. Room thermostat installationconguration" on page 24).

FHL1FHL2

FHL3

T

6 74 5321

6


(2) For tank without electrical booster heater (EKHTS), the backup heater will be used in domestic water heating mode.

(3) Only applicable for tank with built-in electrical booster heater (EKHW*).

INFORMATIONDetails on pump conguration can be found under"8.3. Pump operation conguration" on page 24.

NOTICEWhen circulation in each space heating loop (FHL1...3) iscontrolled by remotely controlled valves (M1...3), it isimportant to provide a by-pass valve (9) to avoid the owswitch safety device from being activated.The by-pass valve should be selected as such that at alltime the minimum water ow as mentioned under"6.7. Water pipework" on page 15 is guaranteed.It is recommended to select a pressure differencecontrolled by-pass valve.

M

FHL1FHL2

FHL3

M1

T1

M2

T2

M3

T3

10

11 12

964 5321

6

7 8

Domestic water heating Application 3EKHBH/X008BBIndoor unit for air to water heat pump system4PW62570-1B 05.2011


When domestic water heating mode is enabled (either manually bythe user, or automatically through a schedule timer) the targetdomestic hot water temperature will be achieved by a combination ofthe heat exchanger coil and the electrical booster heater(1) or backupheater(2).When the domestic hot water temperature is below the usercongured set point, the 3-way valve will be activated to heat thedomestic hot water by means of the heat pump. In case of largedomestic hot water demand or a high domestic hot watertemperature setting, the booster heater (11)(3) or backup heater (4)(4)can provide auxiliary heating.

Space heating and cooling application with the room thermostat setfor heating/cooling connected to the indoor unit. Heating is providedthrough oor heating loops and fan coil units. Cooling is providedthrough the fan coil units only.Domestic hot water is provided through the domestic hot water tankwhich is connected to the indoor unit.


tank)8 Motorised 2-way valve (eld supply)9 Collector (eld supply)


FCU1...3 Fan coil unit (optional)FHL1...3 Floor heating loop

T Room thermostat (optional)

Pump operation and space heating and coolingAccording to the season, the customer will select heating or coolingon the room thermostat (T). This selection is not possible byoperating the user interface.When space heating/cooling is requested by the room thermostat (T),the pump will start operating and the indoor unit (2) will switch to"heating mode"/"cooling mode". The outdoor unit (1) will startoperating to achieve the target leaving hot/cold water temperature.In case of cooling mode, the 2-way valve (8) will close as to preventcold water running through the oor heating loops (FHL).

(1) Only applicable for tank with built-in electrical booster heater (EKHW*).(2) Only applicable for tank without electrical booster heater (EKHTS).(3) Only applicable for tank with built-in electrical booster heater (EKHW*).(4) Only applicable for tank without electrical booster heater (EKHTS).

INFORMATIONOnly for EKHW*: At low outdoor temperatures when space heating

demand is higher, the indoor unit can be congured tohave the domestic hot water heated by the boosterheater exclusively. This assures that the full capacityof the heat pump is available for space heating.

Details on domestic hot water tank conguration forlow outdoor temperatures can be found under"8.9. Field settings" on page 26, eld settings [5-02] to[5-04].

Only for EKHTS: At low outdoor temperatures when space heating

demand is higher, the indoor unit can be congured tohave the domestic hot water heated the heat pumpand backup heater at the same time. This assuresthat the interruption of space heating is limited to aminimum.

Details on domestic hot water tank conguration forlow outdoor temperatures can be found under"8.9. Field settings" on page 26, eld settings [5-02] to[5-04].

NOTICEBe sure that the correct eld settings are active or selectedaccording to the applicable tank type. See eld settings in"[4] Backup/booster heater operation and space heatingoff temperature" on page 28 for more details.



M

FCU1FCU2

FCU3

9

M

FHL1FHL2

FHL3

10

11 12

64 5321

6

7 8

T

Pump operationNOTICEInstallation manual7


4PW62570-1B 05.2011

The ON/OFF setting of the heating/cooling operation is done by theroom thermostat and cannot be done by the user interface on theindoor unit.

Domestic water heating(1)

Domestic water heating is as described under "Application 2" onpage 5.

Application 4

Space heating and cooling application without the room thermostatconnected to the indoor unit, but with the heating only roomthermostat (set heating only) controlling the oor heating and theheating/cooling thermostat (set heating/cooling) controlling the fancoil units. Heating is provided through oor heating loops and fan coilunits. Cooling is provided through the fan coil units only.

1 Outdoor unit2 Indoor unit3 Heat exchanger4 Backup heater5 Pump6 Shut-off valve7 Motorised 2-way valve to shut off the oor heating loops

during cooling operation (eld supply)8 Motorised 2-way valve for activation of the room thermostat

(eld supply)9 Collector (eld supply)

10 By-pass valve (eld supply)FCU1...3 Fan coil unit (optional)FHL1...3 Floor heating loop

T Heating only room thermostat (optional)T4...6 Individual room thermostat for fan coil heated/cooled room

(optional)

With no thermostat connected to the indoor unit (2), the pump (5) canbe congured to operate either as long as the indoor unit is on, oruntil the required water temperature is reached.

Space heating and coolingAccording to the season, the customer will select heating or coolingthrough the user interface on the indoor unit.The outdoor unit (1) will operate in heating mode or cooling mode toachieve the target leaving water temperature.With the unit in heating mode, the 2-way valve (7) is open. Hot wateris provided to both the fan coil units and the oor heating loops.With the unit in cooling mode, the 2-way valve (7) is closed to preventcold water running through the oor heating loops (FHL).

The ON/OFF setting of the heating/cooling operation is done by theuser interface on the indoor unit.

Application 5

Space heating with an auxiliary boiler (alternating operation)Space heating application by either the Daikin indoor unit or by anauxiliary boiler connected in the system. The decision whether eitherthe EKHB* indoor unit or the boiler will operate can be achieved by anauxiliary contact or an EKHB* indoor controlled contact. The auxiliary contact can e.g. be an outdoor temperature thermostat,an electricity tariff contact, a manually operated contact, etc. See"Field wiring conguration A" on page 8.The EKHB* indoor unit controlled contact (also called 'permissionsignal for the auxiliary boiler') is determined by the outdoortemperature (thermistor located at the outdoor unit). See "Field wiringconguration B" on page 8.Bivalent operation is only possible for space heating operation, notfor the domestic water heating operation. Domestic hot water in suchan application is always provided by the domestic hot water tankwhich is connected to the Daikin indoor unit.

The auxiliary boiler must be integrated in the piping work and in theeld wiring according to the illustrations below.

Make sure to connect the thermostat wires to thecorrect terminals (see "Connection of the thermostatcable" on page 21) and to congure the DIP switchtoggle switches correctly (see "8.2. Room thermostatinstallation conguration" on page 24).

Wiring of the 2-way valve (8) is different for a NC(normal closed) valve and a NO (normal open) valve!Make sure to connect to the correct terminal numbersas detailed on the wiring diagram.


T4T5

T6T

10

M

FCU1FCU2

FCU3

9

FHL1FHL2

FHL3

64 5321

6

7 8

M

INFORMATIONDetails on pump conguration can be found under"8.3. Pump operation conguration" on page 24.

NOTICE When closing several loops in the system by remotely

controlled valves, it might be required to install a by-pass valve (10) to avoid the ow switch safety devicefrom being activated. See also "Application 2" onpage 5.

Wiring of the 2-way valve (7) is different for a NC(normal closed) valve and a NO (normal open) valve!Make sure to connect to the correct terminal numbersas detailed on the wiring diagram.

CAUTION Be sure that the boiler and the integration of the boiler

in the system is in accordance with the applicablelegislation.

Daikin can not be put responsible for incorrect orunsafe situations in the boiler system.

Field wiring conguration BEKHBH/X008BBIndoor unit for air to water heat pump system4PW62570-1B 05.2011



tank)8 Non-return valve (eld supply)9 Shut-off valve (eld supply)

10 Collector (eld supply)11 Boiler (eld supply)12 Aquastat valve (eld supply)13 Domestic hot water tank (optional)14 Booster heater(2)15 Heat exchanger coil

FHL1...3 Floor heating loop

Field wiring conguration A

BTI Boiler thermostat inputA Auxiliary contact (normal closed)H Heating demand room thermostat (optional)

K1A Auxiliary relay for activation of EKHB* unit (eld supply)K2A Auxiliary relay for activation of boiler (eld supply)

BTI Boiler thermostat inputC Cooling demand room thermostat (optional)H Heating demand room thermostat (optional)

Com Common room thermostat (optional)K1A Auxiliary relay for activation of boiler unit (eld supply)KCR Permission signal for the auxiliary boiler

Operation Conguration A

When the room thermostat requests heating, either the EKHB*unit or the boiler starts operating, depending on the position ofthe auxiliary contact (A).

Conguration BWhen the room thermostat requests heating, either the EKHB*unit or the boiler starts operating, depending on the outdoortemperature (status of "permission signal for the auxiliaryboiler").When the permission is given towards the boiler, the spaceheating operation by the EKHB* unit will be automaticallyswitched off.For more details see eld setting [C-02~C-04].



M

FHL1FHL2

FHL3

8

8

9

912

116

104 5321 6 7

13

14 15

1 2 3 4

K1AK1A K2A

X Y

K2A

BTI

L

N

EKHB*/auto / Boiler

A

EKHB* X2M

H Com

NOTICE Conguration A

Make sure that auxiliary contact (A) has sufcientdifferential or time delay so as to avoid frequentchangeover between the EKHB* unit and the boiler. Ifthe auxiliary contact (A) is an outdoor temperaturethermostat, make sure to install the thermostat in theshade, so that it is not inuenced or turned ON/OFFby the sun.Conguration BMake sure that the bivalent hysteresis [C-04] hassufcient differential to avoid frequent changeoverbetween the EKHB* unit and the boiler. As theoutdoor temperature is measured via the outdoor unit,air thermistor make sure to install the outdoor unit inthe shade, so that it is not inuenced by the sun.Frequent switching may cause corrosion of the boilerin an early stage. Contact the manufacturer of theboiler.

During heating operation of the EKHB* unit, the unitwill operate so as to achieve the target leaving watertemperature as set on the user interface. Whenweather dependent operation is active, the watertemperature is determined automatically dependingon the outdoor temperature.During heating operation of the boiler, the boiler willoperate so as to achieve the target leaving watertemperature as set on the boiler controller.Never set the target leaving water temperature setpoint on the boiler controller above 55C.

Make sure to only have 1 expansion vessel in thewater circuit. An expansion vessel is alreadypremounted in the Daikin indoor unit.

NOTICEMake sure to congure the DIP switch SS2-3 on the PCBof the EKHB* switch box correctly. Refer to "8.2. Roomthermostat installation conguration" on page 24.For conguration B: Make sure to congure the eldsettings [C-02, C-03 and C-04] correctly. Refer to "Bivalentoperation" on page 36.

X1 X2

X YK1A

KCR

EKRP1HB*

BTI

1 2 3 4

H C Com

K1A

EKHB* X2M

EKRTR*

1 2 3 4

C Com H

K1A

EKHB* X2M

EKRTW*

Application 6NOTICEInstallation manual9


4PW62570-1B 05.2011

Domestic water heating(1)

Domestic water heating is as described under "Application 2" onpage 5.

Space heating with room thermostat application through oor heatingloops and fan coil units. The oor heating loops and fan coil unitsrequire different operating water temperatures.The oor heating loops require a lower water temperature in heatingmode compared to fan coil units. To achive these two set points, amixing station is used to adapt the water temperature according torequirements of the oor heating loops. The fan coil units are directlyconnected to the indoor unit water circuit and the oor heating loopsafter the mixing station. The control of this mixing station is not doneby the indoor unit.

The operation and conguration of the eld water circuit is theresponsibility of the installer.Daikin only offers a dual set point control function. By this functiontwo set points can be generated. Depending on the required watertemperature (oor heating loops and/or fan coil units are required)rst set point or second set point can be activated.

1 Outdoor unit2 Indoor unit3 Heat exchanger4 Backup heater5 Pump6 Shut-off valve7 Collector zone B (eld supply)8 Collector zone A (eld supply)9 Mixing station (eld supply)


T1 Room thermostat for zone A (optional)T2 Room thermostat for zone B (optional)

Make sure that return water to the EKHB* heat exchangernever exceeds 55C.For this reason, never put the target leaving watertemperature set point on the boiler controller above 55Cand install an aquastat(a) valve in the return water ow ofthe EKHB* unit.Make sure that the non-return valves (eld supply) arecorrectly installed in the system.Make sure that the room thermostat EKRTR or EKRTWare not frequently turned ON/OFF.Daikin shall not be held liable for any damage resultingfrom failure to observe this rule.

(a) The aquastat valve must be set for 55C and must operate to close the return water ow to the unit when the measured temperature exceeds 55C. When the temperature drops to a lower level, the aquastat valve must operate to open the return water ow to the EKHB* unit again.

INFORMATIONManual permission towards the EKHB* unit on the boiler.In case only the EKHB* unit should operate in spaceheating mode, disable the bivalent operation via setting[C-02].In case only the boiler should operate in space heatingmode, increase the bivalent ON temperature [C-03] to25C.


INFORMATION The advantage of the dual set point control is that the

heat pump will/can operate at the lowest requiredleaving water temperature when only oor heating isrequired. Higher leaving water temperatures are onlyrequired in case fan coil units are operating.This results in a better performance of the heat pump.

The hydraulic balance is very important. (Hydrobox -mixing station - FCU1...3)

FHL1FHL2

FHL3

T1

T2 FCU1FCU2

FCU3

9

7

8

B

A64 5321

6

Pump operation and space heating 5. OVERVIEW OF THE INDOOR UNITEKHBH/X008BBIndoor unit for air to water heat pump system4PW62570-1B 05.2011


When the room thermostat for the oor heating loop (T1) and the fancoil units (T2) are connected to the indoor unit, the pump (5) willoperate when there is a request for heating from T1 and/or T2. Theoutdoor unit will start operating to achieve the target leaving watertemperature. The target leaving water temperature depends on whichroom thermostat is requesting heating.

When the room temperature of both zones is above the thermostatset point, the outdoor unit and pump will stop operating.

4. ACCESSORIES

4.1. Accessories supplied with the indoor unit

See gure 11 Installation manual2 Operation manual3 Shut-off valve4 Wiring diagram sticker (inside indoor unit cover)5 Indoor unit cover xing screw

5.1. Opening the indoor unit

The front ap on the indoor unit cover gives access to themanometer and user interface.

The indoor unit cover can be removed by removing the 2 bottomscrews and unhitching the cover.

To gain access to the switch box components e.g. to connectthe eld wiring the switch box service panel can be removed.Thereto, loosen the front screws and unhitch the switch boxservice panel.

Set point Field setting Thermo statusZone A First UI ON OFF ON OFFZone B Second [7-03] OFF ON ON OFFResulting water temperature UI [7-03] [7-03] Result pump operation ON ON ON OFF

NOTICE Make sure to connect the thermostat wires to the

correct terminals (see "5. Overview of the indoor unit"on page 10).

Make sure to congure the eld settings [7-02], [7-03]and [7-04] correctly. Refer to "Dual set point control"on page 33.

Make sure to congure the DIP switch SS2-3 on thePCB of the EKHBH switch box correctly. Refer to"8.2. Room thermostat installation conguration" onpage 24.

It is the installers responsibility to make sure nounwanted situations can occur (e.g. too high watertemperatures towards oor heating loops, etc.)

Be aware that the actual water temperature throughthe oor heating loops depends on the control andsetting of the mixing station.

INFORMATION The request signals for space heating can be

implemented in two different ways (installer choice).- Thermo ON/OFF signal from room thermostat- Status signal (active/not active) from the mixing

station Daikin does not offer any type of mixing station. Dual

set point control only provides the possibility to usetwo set points.

When only zone A request heating, zone B will be fedwith water at a temperature equal to the rst set point.This can lead to unwanted heating of zone B.

When only zone B request heating, the mixing stationwill be fed with water at a temperature equal to thesecond set point.Depending on the control of the mixing station, theoor heating loop can still receive water at atemperature equal to set point of the mixing station.

At this type of application heating/cooling selectionalways has to be done on the user interface. Refer to"Dual set point control" on page 33 for more details.

INFORMATIONMake sure to x the cover with the screws when installingthe cover (screws are delivered as accessory).

DANGER: ELECTRICAL SHOCKSee "2. General safety precautions" on page 2.

DANGER: DO NOT TOUCH PIPING AND INTERNALPARTSSee "2. General safety precautions" on page 2.

1. Air purge valveRemaining air in the water circuit will be automatically removedInstallation manual11


4PW62570-1B 05.2011

5.2. Main components

via the air purge valve.2. Backup heater(1)

The backup heater consists of an electrical heating element inthe backup heater vessel that will provide additional heatingcapacity to the water circuit if the heating capacity of the outdoorunit is insufcient due to low outdoor temperatures.

3. Temperature sensorsFour temperature sensors determine the water and refrigeranttemperature at various points in the water circuit.

4. Switch boxThe switch box contains the main electronic and electrical partsof the indoor unit.

5. Heat exchanger6. Expansion vessel (10 l)7. User interface

The user interface allows the installer and user to set up, useand maintain the unit.

8. Refrigerant liquid connection9. Refrigerant gas connection10. Shut-off valves (accessory)

The shut-off valves on the water inlet connection and wateroutlet connection allow isolation of the indoor unit water circuitside from the residential water circuit side. This facilitatesdraining and lter replacement of the indoor unit.

11. Water inlet connection12. Water outlet connection13. Drain and ll valves14. Water lter

The water lter removes dirt from the water to prevent damageto the pump or blockage of the evaporator. The water lter mustbe cleaned on a regular base. See "10. Maintenance andservice" on page 45.

15. ManometerThe manometer allows readout of the water pressure in thewater circuit.

16. Flow switchThe ow switch checks the ow in the water circuit and protectsthe heat exchanger against freezing and the pump againstdamage.

17. PumpThe pump circulates the water in the water circuit.

18. Backup heater thermal protectorThe backup heater is equipped with a thermal protector. Thethermal protector is activated when the temperature becomestoo high.

19. Backup heater thermal fuseThe backup heater is equipped with a thermal fuse. The thermalfuse is blown when the temperature becomes too high (higherthan the backup heater thermal protector temperature).

20. Pressure relief valveThe pressure relief valve prevents excessive water pressure inthe water circuit by opening at 3 bar and discharging somewater.

21. Pressure relief valve hoseThe actual outlet of the pressure relief valve. Make sure toprovide a proper drain.

33

1

2

3

11 33

1

3

10

11

8913

12

10

2

3

4

5

3

7

15

6

13

14

16

21

3

17

19

20

18


5.3. Switch box main components 12. X9A socketThe X9A socket receives the thermistor connector (only forEKHBH/X008BBIndoor unit for air to water heat pump system4PW62570-1B 05.2011


1. Backup heater contactors K1M, K2M, K5M and K6M.2. Main PCB

The main PCB (Printed Circuit Board) controls the functioning ofthe unit.

3. Booster heater contactor K3M (only for installations withdomestic hot water tank)(1)

4. Booster heater circuit breaker F2B (only for installations withdomestic hot water tank)(2)The circuit breaker protects the booster heater in the domestichot water tank against overload or short circuit.

5. Backup heater circuit breaker F1B, F3BThe circuit breaker protects the backup heater electrical circuitagainst overload or short circuit.

6. Terminal blocksThe terminal blocks allow easy connection of eld wiring.

7. Cable tie mountingsThe cable tie mountings allow to x the eld wiring with cableties to the switch box to ensure strain relief.

8. Terminal blocks X3M, X4M (only for installations with domestichot water tank)(3)

9. PCB fuse FU110. DIP switch SS2

The DIP switch SS2 provides 4 toggle switches to congurecertain installation parameters. See "8.1. DIP switch settingsoverview" on page 23.

11. X13A socketThe X13A socket receives the K3M connector (only forinstallations with domestic hot water tank).

installations with domestic hot water tank).13. Fuse FU2 (in line fuse)14. Transformer TR115. A4P

Digital I/O PCB (only for installations with solar kit or digital I/OPCB kit).

16. X6YA/X6YB/X6Y(4)Connectors for connecting to a normal kWh rate power supply.See also "Connection to a benet kWh rate power supply" onpage 22.

5.4. Functional diagram

1 Outdoor unit2 Indoor unit3 Expansion vessel4 Manometer5 Air purge valve6 Pressure relief valve7 Backup heater8 Pump9 Flow switch

10 Shut-off valve water outlet with drain valve (eld installation)

11 Shut-off valve water inlet with drain valve (eld installation)12 Filter13 Heat exchanger

R1T Outlet water heat exchanger thermistorR2T Outlet water backup heater thermistorR3T Refrigerant liquid side thermistorR4T Inlet water thermistor

(1) Only applicable for tank with built-in electrical booster heater (EKHW*).(2) Only applicable for tank with built-in electrical booster heater (EKHW*).(3) Only applicable for tank with built-in electrical booster heater (EKHW*).

TR1

K1M K2M K5M

K3M K6M

F2B F3B F1B

X1M X3M

X2M X4M

A1P

A4P

14

12

11

10

9

15

6

6

1

23

1

5

13

8

7

8

X9A

X13A

SS2

FU2

FU1

45

16


NOTICEThe electrical wiring diagram can be found on the inside ofthe switch box cover.

R4TH2O

t >

R3Tt >

R2Tt >

R1Tt >

9

10

11

32 4 8

12131

5 6 7

6. INSTALLATION OF THE INDOOR UNIT Take care that in the event of a water leak, water can not causeany damage to the installation space and surroundings.Installation manual13


4PW62570-1B 05.2011

6.1. Selecting an installation location

The unit is to be wall mounted in an indoor location that meets thefollowing requirements: The installation location is frost-free. The space around the unit is adequate for servicing. (See

gure 2). The space around the unit allows for sufcient air circulation. There is a provision for condensate drain (only for EKHBX

models with drain pan kit EKHBDP) and pressure relief valveblow-off.

The installation surface is a at and vertical non-combustiblewall, capable of supporting the operation weight of the unit (see"12. Technical specications" on page 50).

All piping lengths and distances have been taken intoconsideration.

During normal operation the hydrobox unit will produce soundwhich could be observed as noise. The sound origin can bewater pump operation and/or contactor activation. Therefore it isadvisable to install the hydrobox unit on a rm wall and not in norclose to a sound sensitive environment (e.g. bedroom).

Do not install the unit in places with high humidity (e.g.bathroom).

Do not install the unit in places often used as work place.In case of construction works (e.g. grinding works) where a lot ofdust is created, the unit must be covered.

Do not place any objects or equipment on top of the unit. Install the power wire at least 1 meter away from televisions or

radios to prevent image interference or noise.(Depending on the radio waves, a distance of 1 meter may notbe sufcient to eliminate the noise.)

Do not install the unit in places such as the following: Where there is mist of mineral oil, oil spray or vapour.

Plastic parts may deteriorate, and cause them to fall out orwater to leak.

Where corrosive gas, such as sulphurous acid gas, isproduced.Corrosion of copper pipes or soldered parts may cause therefrigerant to leak.

Where there is machinery which emits electromagneticwaves.Electromagnetic waves may disturb the control system, andcause malfunction of the equipment.

Where the air contains high levels of salt. Where voltage uctuates a lot, such as that in factories. In vehicles or vessels. Where acidic or alkaline vapour is present.

6.2. Dimensions and service space

Unit of measurement: mm

Dimensions of the unit, see gure 3.1 Flexible drain hose2 Water outlet connection3 Water inlet connection4 Refrigerant liquid connection5 Refrigerant gas connection

FBSP Female British Standard PipeMBSP Male British Standard Pipe

Required service space, see gure 2.

WARNINGBe sure to provide for adequate measures in order toprevent that the unit be used as a shelter by small animals.

Small animals making contact with electrical parts cancause malfunctions, smoke or re. Please instruct thecustomer to keep the area around the unit clean and clear.

CAUTION The equipment is not intended for use in a potentially

explosive atmosphere. Be sure that sufcient precautions are taken, in

accordance with the applicable legislation, in case ofrefrigerant leakage.

When installing the unit in a small room, takemeasures in order to keep the refrigerantconcentration from exceeding allowable safety limitsin the event of a refrigerant leak.Excessive refrigerant concentrations in a closed roomcan lead to oxygen deciency.

Where ammable gases may leak, where carbon breor ignitable dust is suspended in the air or wherevolatile ammables, such as thinner or gasoline, arehandled.Such gases may cause a re.

Requirement ValueMaximum allowable refrigerant piping length between outdoor unit and indoor unit 30 m

Minimum required refrigerant piping length between outdoor unit and indoor unit 3 m

Maximum allowable height difference between outdoor unit and indoor unit 20 m

Maximum allowable distance between the 3-way valve and the indoor unit (only for installations with domestic hot water tank).

3 m

Maximum allowable distance between the domestic hot water tank and the indoor unit (only for installations with domestic hot water tank). The thermistor cable supplied with the domestic hot water tank is 12 m in length.

10 m

INFORMATIONIf the installation is equipped with a domestic hot watertank (optional), please refer to the domestic hot water tankinstallation manual.

6.3. Inspecting, handling and unpacking the unit 6.4. Mounting the indoor unitEKHBH/X008BBIndoor unit for air to water heat pump system4PW62570-1B 05.2011


The indoor unit is packed in a cardboard box, xed by straps ona wooden pallet.

At delivery, the unit must be checked and any damage must bereported immediately to the carrier claims agent.

Check if all indoor unit accessories (see "4. Accessories" onpage 10) are enclosed.

Bring the unit as close as possible to its nal installation positionin its original package in order to prevent damage duringtransport.

The indoor unit weighs approximately 46 kg and should be liftedby two persons using the two lifting bars provided.

1 Put the installation pattern (see packing) on the wall and markthe xation positions (2 on top ( T) and 2 at the bottom ( B)).Make sure that the marks (2 by 2) are completely level and thedimensions of the marks are corresponding according togure 4.When the unit is not installed level, air might get trapped in thewater circuit resulting in malfunctioning of the unit.Pay special attention to this when installing an EKHBX model toprevent overow of the drain pan.

2 Drill 4 holes and install 4 plugs (suitable for M10).3 Put the screws in top plugs and hang the indoor unit on the top

screws.

4 Put the screws in bottom plugs and x the screws rmly.

CAUTION Do not grasp the switch box or piping to lift the unit!

Two lifting bars are provided to lift the unit. Safely dispose of packing materials. Packing

materials, such as nails and other metal or woodenparts, may cause stabs or other injuries.

WARNINGTear apart and throw away plastic packaging bags so thatchildren will not play with them. Children playing withplastic bags face danger of death by suffocation.

CAUTIONThe weight of the indoor unit is approximately 46 kg. Twopersons are required to mount the unit.

4

21 3

1

6.5. Installation of the EKHBDP drain pan kit (only for EKHBX models)

6.8. General precautions concerning water circuitInstallation manual15


4PW62570-1B 05.2011

For heating/cooling models, it is necessary to install the drain pan kit(see "4. Accessories" on page 10).During cooling operation, water vapour (humidity) in the air mightcondense to liquid and collect on the cold refrigerant and water pipes.This water is collected in the drain pan, which must be connected to adrain.

For installation instructions, refer to the instruction sheet deliveredwith the drain pan kit.

6.6. Refrigerant pipework

For all guidelines, instructions and specications regardingrefrigerant pipework between the indoor unit and the outdoor unit,please refer to the outdoor unit installation manual.

The location of the gas pipe and liquid pipe on the indoor unit isshown under "5.2. Main components" on page 11.

6.7. Water pipework

Checking the water circuit

The units are equipped with a water inlet and water outlet forconnection to a water circuit. This circuit must be provided by aninstaller and must comply with the applicable legislation.

Before continuing the installation of the unit, check the followingpoints: The maximum water pressure is 4 bar. The maximum water temperature during space heating is 65C

(safety device setting) and 75C(1) during domestic hot wateroperation (safety device setting). Make sure that the installedpiping and piping accessories (e.g., valve, connections,...) canwithstand the temperatures as shown in the gure below.


tank)8 Motorised 2-way valve (eld supply)9 Collector (eld supply)



T Room thermostat (optional)

Provide adequate safeguards in the water circuit to be sure thatthe water pressure will never exceed the maximum allowableworking pressure (4 bar).

Two shut-off valves are delivered with the unit. To facilitateservice and maintenance, install one at the water inlet and oneat the water outlet of the indoor unit. Mind position of the shut-offvalves. Orientation of the integrated drain and ll valves isimportant for servicing. See gure 3.

Drain taps must be provided at all low points of the system topermit complete drainage of the circuit during maintenance.Two drain valves integrated in the shut-off valves are provided todrain the water from the indoor unit water system.

Make sure to provide a proper drain for the pressure relief valveto avoid any water coming into contact with electrical parts.

CAUTIONMake sure to position the pressure relief valve hose end inthe drain pan. Failure to do so might lead to water cominginto contact with electrical parts, resulting in electricalshocks or short-circuit of the electrical system.

Refrigerant piping specications Indoor unit Outdoor unit

Gas pipe connection 15.9 mm (5/8 inch) 15.9 mm (5/8 inch)Liquid pipe connection 6.4 mm (1/4 inch) 6.4 mm (1/4 inch)

CAUTIONWhen connecting the refrigerant pipes, always use twowrenches/spanners for tightening or loosening nuts! Failureto do so can result in damaged piping connections andleaks.

NOTICEThe unit is only to be used in a closed water system.Application in an open water circuit can lead to excessivecorrosion of the water piping.

(1) Be sure that the correct eld settings are active or selected according to the applicable tank type. See eld settings in "[4] Backup/booster heater operation and space heating off temperature" on page 28 for more details.



M

FCU1FCU2

FCU3

9

M

FHL1FHL2

FHL3

10

11 12

64 5321

6

7 8

T

75C (EKHTS)75C (EKHTS)65C (EKHW*)65C (EKHW*)

65C65C

Air vents must be provided at all high points of the system. Thevents should be located at points which are easily accessible for Checking the water volume and expansion vessel EKHBH/X008BBIndoor unit for air to water heat pump system4PW62570-1B 05.2011


servicing. An automatic air purge is provided inside the indoorunit. Check that this air purge valve is not tightened too much sothat automatic release of air in the water circuit remainspossible.

Take care that the components installed in the eld piping canwithstand the water pressure and water temperature.

Always use materials which are compatible with water used inthe system and with the materials used on the indoor unit.

If air, moisture or dust gets in the water circuit, problems may occur.Therefore, always take into account the following when connectingthe water circuit: Use clean pipes only. Hold the pipe end downwards when removing burrs. Cover the pipe end when inserting it through a wall so that no

dust and dirt enter. Use a good thread sealant for the sealing of the connections. When using non-brass metallic piping, make sure to insulate

both materials from each other to prevent galvanic corrosion. Because brass is a soft material, use appropriate tooling for

connecting the water circuit. Inappropriate tooling will causedamage to the pipes.

Select piping diameter in relation to required water ow andavailable external static pressure of the pump.

The minimum required water ow for the indoor unit operation is12 l/min. When the water ow is lower than this minimum value,ow error 7H will be displayed and the operation of the indoorunit will be stopped.

Never use Zn-coated parts in the water circuit. Excessivecorrosion of these parts may occur as copper piping is used inthe unit's internal water circuit.

When using a 3-way valve in the water circuit.It is very important to guarantee full separation betweendomestic hot water and oor heating water circuit.

When using a 3-way valve or a 2-way valve in the water circuit,the maximum change over time of the valve shall be less than 60seconds.

pre-pressure

The unit is equipped with an expansion vessel of 10 litre which has adefault pre-pressure of 1 bar.

To assure proper operation of the unit, the pre-pressure of theexpansion vessel might need to be adjusted and the minimum andmaximum water volume must be checked.

1 Check that the total water volume in the installation, excludingthe internal water volume of the indoor unit, is 10 l minimum.Refer to "12. Technical specications" on page 50 to know theinternal water volume of the indoor unit.(1)

2 Using the table below, determine if the expansion vessel pre-pressure requires adjustment.

NOTICEIt is strongly recommended to install an additional lter onthe heating water circuit. Especially to remove metallicparticles from the eld heating piping, it is advised to use amagnetic or cyclone lter which can remove smallparticles. Small particles can damage the unit and will notbe removed by the standard lter of the heat pump unit.


INFORMATIONIn most applications this minimum water volume will have asatisfy

im_ekh_tcm135-213764.pdf

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