Installation Manual

INSTALLATION MANUAL

EWAQ005ACV3PEWAQ006ACV3PEWAQ007ACV3P

EWYQ005ACV3PEWYQ006ACV3PEWYQ007ACV3P

Packaged air-cooled water chillers andpackaged reversible air to water heat pumps

Dai

kin

Eu

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e N

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CE -

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CE -

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LDEL

SESE

RKLÆ

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CE -

FÖRS

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CE -

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CE -

ДЕКЛ

АРАЦ

ИЯ-З

А-СЪ

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ТСТВ

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CE -

ATIT

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EKLA

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JA

CE -

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LSTĪ

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ARĀC

IJA

CE -

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CE -

UYUM

LULU

K-Bİ

LDİR

İSİ

01

are

in co

nform

ity w

ith th

e fo

llowi

ng s

tand

ard(

s) o

r oth

er n

orm

ative

doc

umen

t(s),

prov

ided

that

thes

e ar

e us

ed in

acc

orda

nce

with

our

instru

ction

s:

02

der/d

en fo

lgend

en N

orm

(en)

ode

r eine

m a

nder

en N

orm

doku

men

t ode

r -do

kum

ente

n en

tspric

ht/e

ntsp

rech

en, u

nter

der

Vor

auss

etzu

ng,

daß

sie g

emäß

uns

eren

Anw

eisun

gen

einge

setzt

wer

den:

03

sont

confo

rmes

à la/

aux n

orm

e(s)

ou au

tre(s

) doc

umen

t(s) n

orm

atif(

s), p

our a

utan

t qu'i

ls so

ient u

tilisé

s con

form

émen

t à no

s ins

tructi

ons:

04

confo

rm de

volge

nde n

orm

(en)

of éé

n of m

eer a

nder

e bind

ende

docu

men

ten z

ijn, o

p voo

rwaa

rde d

at ze

wor

den g

ebru

ikt ov

eree

nkom

stig

onze

instr

uctie

s:

05

está

n en

conf

orm

idad

con

la(s)

sigu

iente

(s) n

orm

a(s)

u o

tro(s

) doc

umen

to(s

) nor

mat

ivo(s

), sie

mpr

e qu

e se

an u

tiliza

dos d

e ac

uerd

o co

nnu

estra

s ins

trucc

iones

:

06

sono

con

form

i al(i)

seg

uent

e(i)

stand

ard(

s) o

altr

o(i)

docu

men

to(i)

a c

arat

tere

nor

mat

ivo, a

pat

to c

he v

enga

no u

sati

in co

nfor

mità

alle

nostr

e ist

ruzio

ni:

07

Â›Ó·

È Û‡

ÌÊˆÓ·

ÌÂ

ÙÔ(·

) ·Î

fiÏÔ˘

ıÔ(·

) Ú

fiÙ˘

Ô(·)

‹ ¿

ÏÏÔ

¤ÁÁÚ

·ÊÔ(

·) Î

·ÓÔÓ

ÈÛÌÒ

Ó, ˘

fi Ù

ËÓ

ÚÔ¸

fiıÂÛ

Ë fiÙ

È ¯Ú

ËÛÈÌÔ

ÔÈÔ‡

ÓÙ·È

Û‡ÌÊ

ˆÓ·

ÌÂ

ÙÈ˜

Ô‰ËÁ

›Â˜

Ì·˜:

08

estã

o em

con

form

idade

com

a(s

) seg

uinte

(s) n

orm

a(s)

ou

outro

(s) d

ocum

ento

(s) n

orm

ativo

(s),

desd

e qu

e es

tes

sejam

utili

zado

s de

acor

do co

m a

s nos

sas i

nstru

ções

:

09

соот

ветс

твую

т сл

едую

щим

стан

дарт

ам и

ли д

руги

м но

рмат

ивны

м до

куме

нтам

, при

усл

овии

их

испо

льзо

вани

я со

глас

но н

ашим

инст

рукц

иям:

10

over

holde

r fø

lgend

e sta

ndar

d(er

) ell

er a

ndet

/and

re r

etnin

gsgiv

ende

dok

umen

t(er),

for

udsa

t at

diss

e an

vend

es i

henh

old t

il vo

reins

truks

er:

11

resp

ektiv

e ut

rustn

ing ä

r utfö

rd i

över

enss

täm

mels

e m

ed o

ch fö

ljer f

öljan

de s

tand

ard(

er) e

ller a

ndra

nor

mgiv

ande

dok

umen

t, un

der

föru

tsättn

ing a

tt an

vänd

ning

sker

i öve

rens

stäm

mels

e m

ed vå

ra in

struk

tione

r:

12

resp

ektiv

e ut

styr e

r i o

vere

nsste

mm

else

med

følge

nde

stand

ard(

er) e

ller a

ndre

nor

mgiv

ende

dok

umen

t(er),

und

er fo

rutss

etnin

g av

at

disse

bru

kes i

hen

hold

til vå

re in

struk

ser:

13

vasta

avat

seu

raav

ien s

tand

ardie

n ja

muid

en o

hjeell

isten

dok

umen

ttien

vaat

imuk

sia e

delly

ttäen

, et

tä n

iitä k

äyte

tään

ohje

idem

me

muk

aises

ti:

14

za p

ředp

oklad

u, že

jsou

využ

ívány

v so

uladu

s na

šimi p

okyn

y, o

dpov

ídají

nás

ledují

cím n

orm

ám n

ebo

norm

ativn

ím d

okum

entů

m:

15

u sk

ladu

sa sl

ijede

ćim 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

ašim

upu

tam

a:

16

meg

felel

nek a

z aláb

bi sz

abvá

ny(o

k)na

k vag

y egy

éb ir

ánya

dó d

okum

entu

m(o

k)na

k, ha

azo

kat e

lőírá

s sze

rint h

aszn

álják

:

17

spełn

iają

wym

ogi n

astę

pując

ych

norm

i inn

ych

doku

men

tów

norm

aliza

cyjny

ch, p

od w

arun

kiem

że

używ

ane

są z

godn

ie z

nasz

ymi

instru

kcjam

i:

18

sunt

în co

nfor

mita

te cu

urm

ător

ul (u

rmăt

oare

le) st

anda

rd(e

) sau

alt(

e) d

ocum

ent(e

) nor

mat

iv(e)

, cu

cond

iţia ca

ace

stea

să fie

utili

zate

înco

nfor

mita

te cu

instr

ucţiu

nile

noas

tre

19

sklad

ni z n

asled

njim

i sta

ndar

di in

drug

imi n

orm

ativi

, pod

pog

ojem

, da

se u

pora

bljajo

v sk

ladu

z naš

imi n

avod

ili:

20

on va

stavu

ses j

ärgm

is(t)e

stan

dard

i(te)

ga võ

i teist

e no

rmat

iivse

te d

okum

entid

ega,

kui n

eid ka

suta

taks

e va

stava

lt meie

juhe

ndite

le:

21

съот

ветс

тват

на

след

ните

ста

ндар

ти и

ли д

руги

нор

мати

вни

доку

мент

и, п

ри у

слов

ие,

че с

е из

полз

ват

съгл

асно

наш

ите

инст

рукц

ии:

22

atitin

ka že

miau

nur

odytu

s sta

ndar

tus i

r (ar

ba) k

itus n

orm

inius

dok

umen

tus s

u są

lyga,

kad

yra

naud

ojam

i pag

al m

ūsų

nuro

dym

us:

23

tad,

ja lie

toti a

tbils

toši

ražo

tāja

norā

dījum

iem, a

tbils

t sek

ojošie

m st

anda

rtiem

un

citiem

nor

mat

īviem

dok

umen

tiem

:

24

sú v

zhod

e s n

asled

ovno

u(ým

i) no

rmou

(am

i) ale

bo in

ým(i)

nor

mat

ívnym

(i) d

okum

ento

m(a

mi),

za p

redp

oklad

u, že

sa p

oužív

ajú v

súlad

es n

ašim

náv

odom

:

25

ürün

ün, t

alim

atlar

ımıza

gör

e ku

llanı

lmas

ı koş

uluyla

aşa

ğıda

ki sta

ndar

tlar v

e no

rm b

elirte

n be

lgeler

le uy

umlud

ur:

01

Dire

ctive

s, as

am

ende

d.

02

Dire

ktive

n, g

emäß

Änd

erun

g.

03

Dire

ctive

s, te

lles q

ue m

odifié

es.

04

Rich

tlijne

n, zo

als g

eam

ende

erd.

05

Dire

ctiva

s, se

gún

lo en

men

dado

.

06

Dire

ttive,

com

e da

mod

ifica.

07

√‰Ë

ÁÈÒv, fi

ˆ˜

¤¯Ô˘

Ó ÙÚ

ÔÔ

ÔÈËı

Â›.

08

Dire

ctiva

s, co

nform

e alt

eraç

ão e

m.

09

Дире

ктив

со в

семи

поп

равк

ами.

10

Dire

ktive

r, m

ed se

nere

ænd

ringe

r.

11

Dire

ktiv,

med

före

tagn

a än

dring

ar.

12

Dire

ktive

r, m

ed fo

reta

tte e

ndrin

ger.

13

Direk

tiivejä

, sell

aisina

kuin

ne ov

at mu

utettu

ina.

14

v plat

ném

zněn

í.

15

Smjer

nice,

kako

je iz

mije

njeno

.

16

irány

elv(e

k) és

mód

osítá

saik

rend

elkez

éseit

.

17

z póź

niejsz

ymi p

opra

wkam

i.

18

Dire

ctive

lor, c

u am

enda

men

tele

resp

ectiv

e.

19

Dire

ktive

z vs

emi s

prem

emba

mi.

20

Dire

ktiivi

d ko

os m

uuda

tuste

ga.

21

Дире

ктив

и, с

техн

ите

изме

нени

я.

22

Dire

ktyvo

se su

pap

ildym

ais.

23

Dire

ktīvā

s un

to p

apild

inājum

os.

24

Smer

nice,

v pla

tnom

znen

í.

25

Değiş

tirilm

iş ha

lleriy

le Yö

netm

elikle

r.

01

follow

ing th

e pr

ovisi

ons o

f:

02

gem

äß d

en V

orsc

hrifte

n de

r:

03

confo

rmém

ent a

ux st

ipulat

ions d

es:

04

over

eenk

omsti

g de

bep

aling

en va

n:

05

siguie

ndo

las d

ispos

icion

es d

e:

06

seco

ndo

le pr

escr

izion

i per

:

07

ÌÂ Ù

‹ÚËÛ

Ë Ùˆ

v ‰È·Ù

¿ÍÂˆ

v Ùˆ

v:

08

de a

cord

o co

m o

pre

visto

em

:

09

в со

отве

тств

ии с

поло

жени

ями:

10

unde

r iag

ttage

lse a

f bes

tem

mels

erne

i:

11

enlig

t villk

oren

i:

12

gitt i

henh

old til

bes

tem

mels

ene

i:

13

noud

atta

en m

äärä

yksiä

:

14

za d

održ

ení u

stano

vení

pře

dpisu

:

15

prem

a od

redb

ama:

16

köve

ti a(z

):

17

zgod

nie z

posta

nowi

eniam

i Dyr

ektyw

:

18

în u

rma

prev

eder

ilor:

19

ob u

pošte

vanju

dolo

čb:

20

vasta

valt n

õuet

ele:

21

след

вайк

и кл

аузи

те н

а:

22

laika

ntis

nuos

tatų

, pat

eikiam

ų:

23

ievēr

ojot p

rasīb

as, k

as n

oteik

tas:

24

održ

iavajú

c usta

nove

nia:

25

bunu

n ko

şulla

rına

uygu

n ola

rak:

01

Note

*

as se

t out

in

<A>

and j

udge

d pos

itively

by



ac

cordi

ng to

the

Certi

ficate

<C>

.

02

Hinw

eis *

wie i

n der

<A>

aufge

führt

und v

on



posit

iv be

urtei

lt gem

äß

Zerti

fikat

<C>

.

03

Rema

rque

*

tel qu

e défi

ni da

ns

<A>

et év

alué p

ositiv

emen

t par



confo

rmém

ent a

u

Certi

ficat

<C>

.

04

Beme

rk *

zoals

verm

eld in

<A>

en po

sitief

beoo

rdeeld

door



overe

enko

mstig

Certi

ficaa

t <C>

.

05

Nota

*

como

se es

tablec

e en

<A>

y es

valor

ado

posit

ivame

nte po

r



de ac

uerdo

con e

l

Certi

ficad

o <C>

.

06

Nota

*

delin

eato

nel

<A>

e giu

dicato

posit

ivame

nte

da



seco

ndo i

l

Certi

ficato

<C>

.

07

™ËÌÂ

›ˆÛË

*fi

ˆ˜

Î·ıÔ

Ú›˙Â

Ù·È Û

ÙÔ

<A>

Î·È Î

Ú›ÓÂ

Ù·È ı

ÂÙÈÎ¿

·fi

ÙÔ



Û‡Ì

ÊˆÓ·

ÌÂ

ÙÔ

¶ÈÛÙ

ÔÔÈË

ÙÈÎfi

<C>

.

08

Nota

*

tal co

mo es

tabele

cido e

m

<A>

e co

m o p

arece

r po

sitivo

de



de ac

ordo c

om o

Certi

ficad

o <C>

.

09

Прим

ечан

ие *

как у

каза

но в

<A>

и в с

оотв

етст

вии с

по

ложи

тель

ным

реше

нием



согл

асно

Свид

етел

ьств

у <C>

.

10

Bemæ

rk *

som

anfør

t i

<A>

og po

sitivt

vurde

ret af



i he

nhold

til

Certi

fikat

<C>

.

11

Infor

matio

n *

enlig

t

<A>

och g

odkä

nts av



enlig

t

Certi

fikate

t <C>

.

12

Merk

*

som

det fr

emko

mmer

i

<A>

og gj

enno

m po

sitiv

bedø

mmels

e av



ifølge

Serti

fikat

<C>

.

13

Huom

*

jotka

on es

itetty

asiak

irjass

a

<A>

ja jo

tka



on

hyvä

ksyn

yt

Serti

fikaa

tin <C

>

muk

aises

ti.

14

Pozn

ámka

*

jak by

lo uv

eden

o v

<A>

a po

zitivn

ě zjiš

těno



v so

uladu

s

osvě

dčen

ím <C

>

.

15

Napo

mena

*

kako

je iz

ložen

o u

<A>

i poz

itivno

ocije

njeno

od

stran

e



prem

a

Certi

fikatu

<C>

.

16

Megje

gyzé

s *

a(z)

<A>

alap

ján, a

(z)



igaz

olta a

meg

felelé

st,

a(z)

<C> t

anús

ítván

y

szer

int.

17

Uwag

a *

zgod

nie z

doku

menta

cją

<A>

, poz

ytywn

ą opin

ią



i

Świad

ectw

em <C

>

.

18

Notă

*

aşa c

um es

te sta

bilit î

n

<A>

şi ap

recia

t poz

itiv

de



în co

nform

itate

cu

Certi

ficat

ul <C

>

.

19

Opom

ba *

kot je

določ

eno v

<A>

in od

obre

no s

stran

i



v sk

ladu s

certi

fikato

m <C

>

.

20

Märk

us

*

nagu

on nä

idatud

doku

mend

is

<A>

ja he

aks

kiide

tud



järg

i vas

tavalt

serti

fikaa

dile <

C>

.

21

Забе

лежк

а *

какт

о е из

ложе

но в

<A>

и оц

енен

о по

ложи

телн

о от



съгл

асно

Cерт

ифик

ата <

C>

.

22

Pasta

ba *

kaip

nusta

tyta

<A>

ir ka

ip tei

giama

i nus

pręs

ta



pa

gal

Serti

fikatą

<C>

.

23

Piez

īmes

*

kā no

rādīt

s

<A>

un at

bilsto

ši



pozit

īvajam

vē

rtējum

am sa

skaņ

ā ar

serti

fikātu

<C>

.

24

Pozn

ámka

*

ako b

olo uv

eden

é v

<A>

a po

zitívn

e zist

ené



v sú

lade s

osve

dčen

ím <C

>

.

25

Not

*

<A>

‘da b

elirti

ldiği

gibi

ve

<C>

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CONTENTS Page

Introduction...................................................................................... 1General information ................................................................................... 1Scope of this manual ................................................................................. 1Model identification .................................................................................... 1

Accessories ..................................................................................... 2

Typical application examples ......................................................... 2

Overview of the unit ........................................................................ 3Opening of the unit..................................................................................... 3Main components....................................................................................... 3Safety devices............................................................................................ 4Switch box components ............................................................................. 4

Installation of the unit ..................................................................... 4Selecting the installation location............................................................... 4Inspecting, handling and unpacking the unit .............................................. 5Important information regarding the refrigerant used ................................ 5Mounting the unit ....................................................................................... 5Drain work.................................................................................................. 5Water pipework .......................................................................................... 5Charging the water..................................................................................... 7Piping insulation......................................................................................... 8Field wiring................................................................................................. 8Installation of the digital controller.............................................................. 9

Start-up and configuration ........................................................... 11Pre-operation checks ............................................................................... 11Powering up the unit ................................................................................ 11Setting the pump speed ........................................................................... 11Field settings............................................................................................ 12Test run and final check ........................................................................... 14

Maintenance................................................................................... 14Chiller unit ................................................................................................ 14Digital controller ....................................................................................... 14

Troubleshooting............................................................................. 15General guidelines ................................................................................... 15General symptoms................................................................................... 15Error codes .............................................................................................. 16

Technical specifications ............................................................... 17General .................................................................................................... 17Electrical specifications............................................................................ 17

INTRODUCTION

General information

Thank you for purchasing this Daikin inverter chiller.

This unit is designed for outdoor installation and used for bothheating and cooling applications. The unit is designed to becombined with fan coil units or air handling units for air conditioningpurposes.

Heat pump and cooling only versions

This chiller range consists of two main versions: a heat pump(EWYQ) version and a cooling only (EWAQ) version, available in3 standard sizes (5 kW, 6 kW and 7 kW).

Heater tape option OP10

Both versions are also available with a heater tape option (OP10) forprotecting internal water pipework at cold outdoor temperatures.

Scope of this manual

This manual describes the procedures for unpacking, installing andconnecting all EWA/YQ models, as well as instructions formaintenance and troubleshooting of the unit.

Model identification

EWAQ005ACV3P EWYQ005ACV3PEWAQ006ACV3P EWYQ006ACV3PEWAQ007ACV3P EWYQ007ACV3P

Packaged air-cooled water chillers andpackaged reversible air to water heat pumps Installation manual

READ THESE INSTRUCTIONS CAREFULLY BEFOREINSTALLATION. KEEP THIS MANUAL IN A HANDYPLACE FOR FUTURE REFERENCE.

IMPROPER INSTALLATION OR ATTACHMENT OFEQUIPMENT OR ACCESSORIES COULD RESULT INELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OROTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLYTO USE ACCESSORIES MADE BY DAIKIN WHICH ARESPECIFICALLY DESIGNED FOR USE WITH THEEQUIPMENT AND HAVE THEM INSTALLED BY APROFESSIONAL.

IF UNSURE OF INSTALLATION PROCEDURES OR USE,ALWAYS CONTACT YOUR DAIKIN DEALER FORADVICE AND INFORMATION.

EW A Q 005 AA V3 P -H-

Option heater tape

Pump included

Nominal voltage (1P, 230 V, 50 Hz)

Major/minor change

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

(a) Please see "Technical specifications" on page 17 for exact values.

R410A refrigerant

A = cooling only,Y = heating and cooling

European water chiller

EWAQ+EWYQ005~007ACV3PPackaged air-cooled water chillers and packaged reversible air to water heat pumps4PW33165-1F

Installation manual

1

ACCESSORIES

TYPICAL APPLICATION EXAMPLES

These application examples are given for illustration purposes only.

Application 1

Space heating and cooling application (without thermostat).

The digital controller (DC) is installed indoors and allows the user toturn the unit (1) ON or OFF, to select between cooling and heatingmode (only in case of a heat pump model) and to set the watertemperature. When the unit is turned on, it will provide water at theset temperature to the fan coil units (FCU1..3).

Application 2

Space cooling and heating application with a room thermostatsuitable for cooling/heating changeover connected to the unit.

■ Pump operation and space heating and cooling (space coolingand heating application with a room thermostat suitable forcooling/heating changeover connected to the unit )

According to the season, the customer will select cooling orheating on the room thermostat (T). This selection is notpossible by operating the user interface.

When space cooling/heating is requested by the roomthermostat (T), the pump will start operating and the unit willswitch to “cooling mode”/”heating mode”. The outdoor units willstart operating to achieve the target leaving cold/hot watertemperature.

The ON/OFF setting of the heating/cooling operation is done bythe room thermostat and cannot be done by the user interfaceon the unit.

Installation manual 1

Operation manual 1

Shut-off valve 2

Wiring diagram sticker (inside top unit cover) 1

Remote controller kit(digital controller, 4 fixing screws and 2 plugs) 1

1 Reversible heat pump 7 Bypass valve

2 Plate heat exchanger FCU1..3 Fan coil unit (field supply)3 Expansion vessel

4 Pump DC Digital controller

5 Shut-off valve RT1..3 Room thermostat (field supply)6 Motorised valve (field supply)

FCU1

M

RT1

FCU2

M

RT2

FCU3

M

RT3

DC2 3 4 51

5 6

7

1 Reversible heat pump 7 Shut-off valve

2 Plate heat exchanger FCU1..3 Fan coil unit (field supply)

3 Expansion vessel

4 Pump T Room thermostat or room thermostat with cooling/heating switch(field supply)

5 Shut-off valve

6 Collector (field supply)

Make sure to connect the thermostat wires to the correctterminals (see "Connection of the thermostat cable" onpage 10).

T62 3 4 51

7

FCU1FCU2

FCU3

Installation manual

2EWAQ+EWYQ005~007ACV3P

Packaged air-cooled water chillers and packaged reversible air to waterheat pumps

4PW33165-1F

OVERVIEW OF THE UNIT

Opening of the unit

To have access to all main components for installation and servicing,the top and front cover of the unit must be removed.

■ To open the top cover (1), loosen the 6 screws and lift the topcover.

■ To open the front cover (2), loosen the four screws and unhitchthe front cover.

■ To gain access to the switch box’ internals – e.g. to connect thefield wiring – the switch box service panel (3) can be removed.Thereto, loosen the two screws and lift the switch box servicepanel.

Main components

1 Switch box

The switch box contains connection terminals for the powersupply and digital controller, and the main electronic andelectrical parts of the unit.

2 Main isolator switch

The main isolator switch allows to cut off all electrical power tothe unit.

3 Heat exchanger

4 Water inlet connection (1” MBSP)

5 Water outlet connection (1” MBSP)

6 Pump

The pump circulates the water in the water circuit.

7 Manometer

The manometer allows readout of the water pressure in thewater circuit.

8 Expansion vessel (6 litre)

The water in the water circuit expands with rising temperatures.The expansion vessel stabilises the pressure changes withchanging water temperatures by giving free space to thechanging water volume.

9 Expansion vessel service point

The service point allows connection of a dry nitrogen cylinder toadjust the expansion vessel pre-pressure if necessary.

10 Drain and fill valve (2x)

11 Air purge valve

Remaining air in the water circuit will be automatically removedvia the air purge valve.

12 Water filter

The water filter removes dirt from the water to prevent damageto the pump or blockage of the evaporator. The water filtershould be cleaned on a regular base. See "Maintenance" onpage 14.

Switch off the power supply before removing theswitch box service panel.

1

2

3

1

3

13b

18

10

2

12

13a

11

7

17

8

4

5

14

15

9

6


Installation manual

3

13 Water temperature sensors

Two temperature sensors determine the water inlet temperature(13a) and water outlet temperature (13b).

14 Digital controller cable intake

15 Power supply intake

16 OP10 heater tape (optional, not illustrated)

The heater tape is wrapped around the pipework and protectsthe evaporator and water circuit in the unit from freezing at coldoutdoor temperatures.

Safety devices

17 Flow switch

The flow switch checks the flow in the water circuit and protectsthe heat exchanger against freezing and the pump againstdamage. In case the minimum required flow is not achieved, theunit will be shut down.

18 Pressure relief valve

The pressure relief valve prevents excessive water pressure inthe water circuit (≥3 bar).

Switch box components

19 Cable tie mountings

The cable tie mountings allow to fix the field wiring with cableties to the switch box to ensure strain relief.

20 Terminal block

The terminal block allows easy connection of field wiring.

INSTALLATION OF THE UNIT

Selecting the installation location

General guidelines

■ The unit is designed to be installed in an outdoor location.

■ Choose a place solid enough to bear the weight and vibration ofthe unit, where the operation noise will not be amplified.

■ Although the noise produced by the unit during operation is low,avoid installation near to places where even low noise levels canbe disturbing (e.g., bedroom windows, terraces).

■ Choose a location where the hot air discharged from the unit willnot cause a nuisance.

■ There must be sufficient space for air passage and noobstructions around the air intake and the air exhaust (see"Installing near a wall or obstacle" on page 4).

■ The site must be free from the possibility of flammable gasleakage in a nearby place.

■ Install the unit and power cords at least 3 m away from televisionand radio sets. This is to prevent interference to images andsounds.

■ In coastal areas or other places with salty atmosphere,corrosion may shorten the life of the unit. Prevent directexposure to winds coming from the sea.

■ Since drain flows out of the unit, do not place anything under theunit which must be kept away from moisture.

Installing near a wall or obstacle

■ Where a wall or other obstacle is in the path of the unit’s airintake or exhaust airflow, the distances as indicated on thefigures below need to be respected.

■ The wall height on the exhaust side should be 1200 mm or less.

20

19

■ Make sure to provide for adequate measures in orderto prevent that the outdoor unit be used as a shelterby small animals.

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

Side view Top view

>100

>350

≤≤120

0

>50

>100 >350

Installation manual



4PW33165-1F

Selecting a location in cold climates

■ Prevent exposure to wind:• Install the unit with its air intake side facing the wall. Never

install the unit at a site where the air intake side may beexposed directly to wind.

• Install a baffle plate on the air exhaust side of the unit.

■ In heavy snowfall areas, select an installation site where thesnow will not affect the unit.

■ Make sure to protect the water circuit against freezing. Refer to"Protecting the water circuit against freezing" on page 7.

Unit installation drawing

Indicated distances must be respected to ensure optimal operation ofthe unit. For ease of access at the moment of installation or servicing,the unit may be pushed further away from walls or obstacles.

Inspecting, handling and unpacking the unit

■ The unit is packed in a cardboard box fixed by straps.

■ At delivery, the unit should be checked and any damage shouldbe reported immediately to the carrier claims agent.

■ Check if all unit accessories (see "Accessories" on page 2) areenclosed.

■ Bring the unit as close to its final installation position in itsoriginal package to prevent damage during transport.

■ After unpacking, the unit can be positioned correctly using thehandles provided at both ends of the unit.

Important information regarding the refrigerant used

This product contains fluorinated greenhouse gases covered by theKyoto Protocol. Do not vent gases into the atmosphere.

Refrigerant type: R410A

GWP(1) value: 1975

(1) GWP = global warming potential

The refrigerant quantity is indicated on the unit name plate.

Mounting the unit

1 Check the strength and level of the installation ground so thatthe unit will not cause any operating vibration or noise afterinstallation.

2 Make sure that the unit is installed level.

3 Prepare 4 sets of M8 or M10 foundation bolts, nuts and washerseach (field supply).

4 Fix the unit securely by means of the foundation bolts inaccordance with the installation drawing.Screw in the foundation bolts until their length remains 20 mmabove the foundation surface.

Drain work

If drain work is necessary, follow the guidelines below.

■ Two drain outlets are provided in the bottom plate of unit, see"Unit installation drawing" on page 5 (drain plug and drain hoseare field supply).

■ In cold areas, do not use a drain hose with the unit. Otherwise,drain water may freeze and block the drain. In case the use of adrain hose is unavoidable for one reason or another, it isrecommended to install a heater tape in order to protect drainfrom freezing.

Water pipework

Checking the water circuit

The units have a water inlet and water outlet for connection to a watercircuit. This circuit must be provided by a licensed technician andmust comply with all relevant European and national regulations.

Before continuing the installation of the unit, beware of the followingpoints:

■ 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 unit.

When operating the unit in a low outdoor ambienttemperature, be sure to follow the instructions describedbelow.

Construct a large canopy.

Construct a pedestal.

Install the unit high enough off the ground to prevent burying in snow.

Service space

1 Fixation holes

2 Drain outlets (Ø18 mm)

3 Water inlet

4 Water outlet

58013769

367

1170>50

330360

350

>100

1 1

34

2

The 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.

20


Installation manual

5

■ Drain taps must be provided at all low points of the system topermit complete drainage of the circuit. Two drain valves areprovided inside the unit.

■ Air vents must be provided at all high points of the system. Thevents should be located at points which are easily accessible forservicing. An automatic air purge is provided inside the unit.Check that this air purge valve is not tightened too much so thatautomatic release of air in the water circuit remains possible.

■ Take care that the components installed in the field piping canwithstand the water pressure.

Checking the water volume and expansionvessel pre-pressure

The unit is equipped with an expansion vessel of 6 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 is 10 lminimum:

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

3 Using the table and instructions below, determine if the totalwater volume in the installation is below the maximum allowedwater volume.

Calculating the pre-pressure of the expansion vessel

The pre-pressure (Pg) to be set depends on the maximuminstallation height difference (H) and is calculated as below:

Pg=(H/10+0.3) bar

Checking the maximum allowed water volume

To determine the maximum allowed water volume in the entire circuit,proceed as follows:

1 Determine for the calculated pre-pressure (Pg) thecorresponding maximum water volume using the graph below.

2 Check that the total water volume in the entire water circuit islower than this value.

If this is not the case, the expansion vessel inside the unit is too smallfor the installation.

Example 1

A heat pump model unit is installed 5 m below the highest point in thewater circuit. The total water volume in the water circuit is 100 l

In this example, no action or adjustment is required.

Example 2

A heat pump model unit is installed 4 m below the highest point in thewater circuit. The total water volume in the water circuit is 190 l.

Result:

■ Since 190 l is higher than 170 l, the pre-pressure must bedecreased (see table above).

■ The required pre-pressure is:Pg = (H/10 + 0.3) bar = (4/10 + 0.3) bar = 0.7 bar

■ The corresponding maximum water volume can be read fromthe graph: approximately 200 l.

■ Since the total water volume (190 l) is below the maximum watervolume (200 l), the expansion vessel suffices for the installation.

Setting the pre-pressure of the expansionvessel

When it is required to change the default pre-pressure of theexpansion vessel (1 bar), keep in mind the following guidelines:

■ Use only dry nitrogen to set the expansion vessel pre-pressure.

■ Inappropriate setting of the expansion vessel pre-pressure willlead to malfunction of the system. Therefore, the pre-pressureshould only be adjusted by a licensed installer.

NOTE In most air conditioning applications this minimumwater volume will have a satisfying result.

In critical processes or in rooms with a high heatload though, extra water volume might berequired.

Installation height

difference(a)

(a) Installation height difference: height difference (m) between the highest point of the water circuit and the unit. If the unit is located at the highest point of the installation, the installation height is considered 0 m.

Water volume

≤300 l (EWAQ)≤170 l (EWYQ)

>300 l (EWAQ)>170 l (EWYQ)

≤7 m No pre-pressure adjustment required.

Actions required:• pre-pressure must be

decreased, calculate according to "Calculating the pre-pressure of the expansion vessel"

• check if the water volume is lower than maximum allowed water volume (use graph below)

>7 m

Actions required:• pre-pressure must be

increased, calculate according to "Calculating the pre-pressure of the expansion vessel"

• check if the water volume is lower than maximum allowed water volume (use graph below)

Expansion vessel of the unit too small for the installation.

= pre-pressure

= maximum water volume

0.30.5

1

1.5

2

2.5

100500 10 150 200 250 300 350 400 450maximum water volume [l]

pre-

pres

sure

[bar

]

EWAQ

EWYQ

Installation manual



4PW33165-1F

Connecting the water circuit

Water connections must be made in accordance with the installationdrawing delivered with the unit, respecting the water in- and outlet.

If dirt gets in the water circuit, problems may occur. Therefore, alwaystake into account the following when connecting the 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 nodust and dirt enter.

■ Use a good thread sealant for the sealing of the connections.The sealing must be able to withstand the pressures andtemperatures of the system, it must also be resistant to the usedglycol in the water.

■ When using non-brass metallic piping, make sure to insulateboth materials from each other to prevent galvanic corrosion.

■ Because brass is a soft material, use appropriate tooling forconnecting the water circuit. Inappropriate tooling will causedamage to the pipes.

■ Increasing the distance between shut-off valves is necessary forease of installation.

Installation example

Protecting the water circuit against freezing

Frost can damage the unit. For this reason, in colder climates thewater circuit must be protected by means of a heater tape or byadding glycol to the water.

In case of heater tape

1 Check that the unit has the option heater tape installed.(Connections of the factory mounted heater tape are made onterminals 4/5 inside the switch box).

2 Install a heater tape (field supply) on the outdoor field piping.Power supply connections for this heater tape must be made onterminals 4/5 inside the switch box provided this heater tape is ofa type that consumes not more than 200 W.

In case of glycol

Depending on the expected lowest outdoor temperature, make surethe water system is filled with a weight concentration of glycol asmentioned in the table below.

Also refer to "Checks before start-up" on page 11.

Initial start-up at low ambient temperatures

Charging the water

1 Connect the water supply to the drain and fill valves (see "Maincomponents" on page 3).

2 Fill with water until the manometer indicates a pressure ofapproximately 2.0 bar. Remove air in the circuit as much aspossible using the air purge valves.

Be careful not to deform the unit piping by using excessiveforce when connecting the piping.

1 To secure the piping of the unit

2 To connect the shut-off valve

3 Water inlet

4 Water outlet

5 Round socket 2x 1" Female BSP (field supply)

6 1" Male BSP pipe end (field supply)

1 5

2

43

6

4 3

For the heater tape to operate, power to the unit mustbe provided and the main isolator switch must be on.For this reason never disconnect power and neverturn off the main isolator switch for a long time duringcold periods!

In case this heater tape is of a type that consumesmore than 200 W, this heater tape must be connectedto a separate power supply and not to heater tapeterminals 4/5!

Minimum outdoor temperature 0°C –5°C –10°C –15°C

Ethylene glycol 10% 15% 25% 35%

Propylene glycol 10% 15% 25% 35%

NOTE To ensure that the unit operates within its operatingrange as soon as possible (water temperature >30°C),the load during start-up must be reduced as much aspossible. For example you can do this by putting offfans of the fan coil units until the water temperaturehas increased to 30°C.

NOTE ■ During filling, it might not be possible to remove allair in the system. Remaining air will be removedthrough the automatic air purge valves during firstoperating hours of the system. Additional fillingwith water afterwards might be required.

■ The water pressure indicated on the manometerwill vary depending on the water temperature.(higher pressure at higher water temperature).However, at all times water pressure shouldremain above 0.3 bar to avoid air entering thecircuit.

■ The unit might dispose some excessive waterthrough the pressure relief valve.


Installation manual

7

Piping insulation

The outdoor and indoor part of the water circuit must be insulated toprevent condensation during cooling operation and reduction of thecooling and heating capacity.

Field wiring

Internal wiring - Parts table

Refer to the internal wiring diagram supplied with the unit (inside theunit top cover). The abbreviations used are listed below.

Accessible switch box

A1P ........................Main PCB

A2P ........................Digital controller PCB (indoor)

E5H ........................Heater tape (models with heater tape only (option OP10))

E6H ........................Field supplied heater tape (models with heater tape only (option OP10))

FU1 ........................Fuse 3.15 A T 250 V

FU2 ........................Fuse 5 A 250 V (models with heater tape only (option OP10))

K1M........................Relay (models with heater tape only (option OP10))

M1P........................Pump

Q1DI.......................Earth leakage circuit breaker

R1T ........................Outlet water heat exchanger thermistor

R3T ........................Refrigerant liquid side thermistor

R4T ........................Inlet water thermistor

S1L.........................Flow switch

S1M........................Main switch

SS2 ........................Dipswitch

TR1 ........................Transformer 24 V for PCB

X10A, X15A............Connector

X17A~X20A............Connector

X1A, X2A................Connector

X4A, X5A................Connector

X7A, X8A................Connector

X3M........................Terminal strip

Non-accessible switch box

AC1, AC2............... Connector

E1, E2.................... Connector

FU1........................ Fuse 30 A 250 V

FU2,FU3 ................ Fuse 3.15 A 250 V

HR1, HR2 .............. Connector

L............................. Live

L1R........................ Reactor

LED A .................... Pilot lamp

M1C....................... Compressor motor

M1F ....................... Fan motor

MRC/W.................. Magnetic relay

MRM10,MRM20 .... Magnetic relay

N ............................ Neutral

PCB1,2 .................. Printed circuit board

PM1 ....................... Power module

Q1L........................ Overload protector

R1T~R3T............... Thermistor

S2~S102................ Connector

SA2........................ Surge arrester

SHEET METAL ...... Terminal strip fixed plate

SW1....................... Forced operation ON/OFF switch

SW4....................... Local setting switch

U, V, W, X11A......... Connector

V2,V3,V5,V6,V11... Varistor

X1M, X2M.............. Terminal strip

Y1E........................ Electronic expansion valve coil

Y1R........................ Reversing solenoid valve coil

Z1C~Z4C............... Ferrite core

Notes

............... Field wiring

................. Terminal strip

......................... Connector

......................... Terminal

.......................... Protective earth

(1) This wiring diagram only applies to the outdoor unit

(4) Do not operate the unit by short-circuiting protection devices Q1L,S1L

Field wiring guidelines

Equipment complying with EN/IEC 61000-3-12(1)

■ The field wiring on the unit is to be made on the terminal blockinside the switch box. To gain access to the terminal block,remove the unit top cover and switch box service panel, see"Opening of the unit" on page 3.

■ Cable tie mountings are provided at the side of switch box. Fixall cables using cable ties to provide strain relief.

■ All field wiring and components must be installed by alicensed electrician and must comply with relevantEuropean and national regulations.

■ The field wiring must be carried out in accordancewith the wiring diagram supplied with the unit and theinstructions given below.

■ Be sure to use a dedicated power supply. Never use apower supply shared by another appliance.

■ Be sure to establish an earth. Do not earth the unit toa utility pipe, surge absorber, or telephone earth.Incomplete earth may cause electrical shock.

■ Be sure to install an earth leakage circuit breaker.This unit uses an inverter, which means that an earthleakage circuit breaker capable of handling highharmonics needs to be used in order to preventmalfunctioning of the earth leakage circuit breakeritself.

■ Use an all-pole disconnection type breaker with acontact separation of at least 3 mm in-between allpoles.

BLK : Black GRY : Grey VIO : Violet

BLU : Blue PNK : Pink WHT : White

BRN : Brown ORG : Orange YLW : Yellow

GRN : Green RED : Red

When fixing cables inside the unit, make sure the cablesdo not touch the pump or refrigerant piping.

(1) European/International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16 A and ≤75 A per phase.

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4PW33165-1F

■ The back cover of the unit is equipped with 2 holes to guide thedigital controller cable (smallest hole) and the power supplycable (largest hole) wiring into the unit. Refer to "Maincomponents" on page 3.

Make sure to use double insulated cables or to put cablesoutside the unit into a protective pipe in order to avoid damageto cables by friction on the basis of the unit.

■ The power supply cable must be selected in accordance withlocal and national regulations.

Connection of the power supply

1 Using the appropriate cable (see above), connect the powercircuit to the L and N terminals on the main isolator switch insidethe switch box.

2 Connect the earth conductor (yellow/green) to the earthingscrew on the switch box mounting plate.

3 Fix the cable with cable ties to the cable tie mountings to ensurestrain relief.

Note: only relevant field wiring is shown.

Installation of the digital controller

The unit is equipped with a digital controller offering a user-friendlyway to set up, use and maintain the unit. Before operating thecontroller, follow this installation procedure.

Wiring specifications

Mounting

1 Remove the front part of the digital controller.

Insert a slotted screwdriver into the slots (1)in the rear part of the digital controller, andremove the front part of the digitalcontroller.

2 Fasten the digital controller on a flatsurface.

3 Wire the unit.

Connect the terminals on top of the front part of the digitalcontroller and the terminals inside the unit (P1 to 6, P2 to 7).

4 Reattach the upper part of the digital controller.

First begin fitting from the clips at thebottom.

Switch off the power supply before making anyconnections.

NOTE For easy connection of the wires, the back part ofthe switch must be detached by turning the lever aquarter turn and then pulling the rear part off theswitch.

Wire specification Value

Type 2 wire

Section 0.75–1.25 mm2

Maximum length 500 m

NOTE The wiring for connection is not included.

The digital controller, delivered in a kit, has to be mountedindoors.

NOTE Be careful not to distort the shape of the lower part ofthe digital controller by over tightening the mountingscrews.

1 Chiller unit

2 Rear part of the digital controller

3 Front part of the digital controller

4 Wired from the rear

5 Wired from the top

6 Notch the part for the wiring to pass through with nippers, etc.

NOTE ■ When wiring, run the wiring away from thepower supply wiring in order to avoidreceiving electric noise (external noise).

■ Peel the shield for the partthat has to pass through theinside of the digital controllercase ( l ).

Be careful not to pinch the wiring when attaching.

1

P1P2

1 1

6

2

3

4 5

P1P2

1


Installation manual

9

Remote ON/OFF and cooling/heating possibilities

Remote control of the unit can be done by a voltage free contact.Depending on the setting on the digital controller, the unit will operatein cooling or in heating mode.

Connection of the thermostat cable

Connection of the thermostat cable depends on the application.

See also "Typical application examples" on page 2.

Thermostat requirements

■ Contact voltage: 230 V.

Procedure

1 Connect the thermostat cable to the appropriate terminals asshown on the wiring diagram.

2 Fix the cable with cable ties to the cable tie mountings to ensurestrain relief.

The following table summarizes the required configuration andthermostat wiring at the terminal block in the switch box. Pumpoperation is listed in the third column. The three last columns indicatewhether the following functionality is available on the user interface(UI) or handled by the thermostat (T):

• space heating or cooling on/off (o)• heating/cooling changeover (=)• heating and cooling schedule timers (pr)

Heating/cooling thermostat Remote ON/OFF

NOTE ■ When a room thermostat is connected to the unit,the heating and cooling schedule timers are neveravailable. Other schedule timers are not affected.For more information on the schedule timers, referto the operation manual.

■ When a room thermostat is connected to the unit,and the = button or o button is pressed, thecentralised control indicator e will flash toindicate that the room thermostat has priority andcontrols on/off operation and change overoperation.

H C

Terminal block

H C

th

N8 9 10

Terminal block

H C

sw

N8 9 10

Thermostat ConfigurationPump operation oooo ==== pppprrrr

No thermostat wiring: on when unit is on

UI UI UI

Thermostat with heating/cooling switch

wiring: on when heating request or cooling request by room thermostat

T T —

Remote ON/OFF

wiring: on when remote on

T — —

th = Thermostat contactC = Cooling contactH = Heating contactN = neutral

Terminal block

H C N8 9 10

H C

Terminal block

H C

th

N8 9 10

Terminal block

H C

sw

N8 9 10

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4PW33165-1F

START-UP AND CONFIGURATION

Pre-operation checks

Checks before start-up (before initial start-up or at restartafter a longer period of standstill)

After the installation of the unit, check the following before switchingon the circuit breaker:

1 Field wiring

Make sure that the field wiring has been carried out according tothe instructions and guidelines given under "Field wiring" onpage 8.

2 Internal wiring

Visually check the switch box on loose connections or damagedelectrical components.

3 Fixation

Check that the unit is properly fixed, to avoid abnormal noisesand vibrations.

4 Damaged equipment

Check the inside of the unit on damaged components orsqueezed pipes.

5 Refrigerant leak

Check the inside of the unit on refrigerant leakage. If there is arefrigerant leak, contact your local Daikin dealer.

6 Power supply voltage

Check the power supply voltage on the local supply panel. Thevoltage must correspond to the voltage on the identification labelof the unit.

7 Shut-off valves

Make sure that the shut-off valves are correctly installed andfully open.

8 Water pressure

Make sure the unit is filled with water and that the waterpressure is approximately 2.0 bar.

9 Protection against freezing

Make sure that in colder climates (ambient temperature canbecome lower than 0°C) the unit is protected against freezing bymeans of a heater tape or by adding glycol to the water.

Also refer to "Protecting the water circuit against freezing" onpage 7.

Powering up the unit

1 Switch on the main isolator switch inside the unit.

2 When power supply to the unit is turned on, “88” is displayed onthe digital controller during its initialisation, which might take uptot 10 seconds. During this process the digital controller cannotbe operated.

Setting the pump speed

The pump speed can be selected on the pump (see "Maincomponents" on page 3).

The default setting is highest speed (III). If the water flow in thesystem is too high (e.g., noise of running water in the installation) thespeed can be lowered (I or II).

The available external static pressure (ESP, expressed in mH2O) infunction of the water flow (l/min) is shown in the graph below.

Switch off the power supply before making anyconnections.

30

1

2

3

4

5

6

7

7 129 11 13 15 17 19 21 23[l/min]

ES

P [m

H2O

]

25 27 29 31 33 35 37 39


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11

Field settings

The unit should be configured by the installer to match the installationenvironment (outdoor climate, etc.) and user expertise. Thereto, anumber of so called field settings are available. These field settingsare accessible and programmable through the digital controller.

Each field setting is assigned a 3-digit number or code, for example[1-02], which is indicated on the digital controller display. The firstdigit [1] indicates the ‘first code’ or field setting group. The secondand third digit [02] together indicate the ‘second code’.

A list of all field settings and default values is given under "Fieldsettings table" on page 13. In this same list, we have provided 2columns to register the date and value of altered field settings atvariance with the default value.

A detailed description of each field setting is given under "Detaileddescription" on page 12.

Procedure

To change one or more field settings, proceed as follows.

1 Press the z button for a minimum of 5 seconds to enter FIELDSET MODE.

The $ icon (3) will be displayed. The current selected fieldsetting code is indicated ; (2), with the set value displayed tothe right : (1).

2 Press the bgi button to select the appropriate fieldsetting first code.

3 Press the bgj button to select the appropriate fieldsetting second code.

4 Press the pfi button and pfj button to changethe set value of the select field setting.

5 Save the new value by pressing the pr button.

6 Repeat step 2 through 4 to change other field settings asrequired.

7 When finished, press the z button to exit FIELD SET MODE.

Detailed description

[0] User permission level

If required, the digital controller functions available to the user can belimited by restricting the number of operable buttons. This mayprevent the user from disrupting correct operation of the installation.

Three permission levels are available (see the table below).Switching between level 1 (default) and level 2/3 is done by pressingthe following 4 buttons at the same time for more than 5 seconds (innormal mode): s, ba, pfi and pfj. Press these 4buttons to switch to level 2/3, press again for 5 seconds to switchback to level 1. When level 2/3 is selected, the actual permission level— either level 2 or level 3 — is determined by the field setting [0-00].

■ [0-00] User permission level: applicable permission levelnumber (level 2 or level 3). See the table below.

[1] Weather dependent set point (heat pump models only)

The weather dependent set point field settings define the parametersfor the weather dependent operation of the unit. When weatherdependent operation is active, the water temperature is determinedautomatically depending on the outdoor temperature: colder outdoortemperatures will result in warmer water and vice versa. Duringweather dependent operation, the user has the possibility to shift thetarget water temperature up or down by a maximum of 5°C. See theoperation manual for more details on weather dependent operation.

■ [1-00] Low ambient temperature (Lo_A): low outdoortemperature.

■ [1-01] High ambient temperature (Hi_A): high outdoortemperature.

■ [1-02] Set point at low ambient temperature (Lo_Ti): thetarget outgoing water temperature when the outdoortemperature equals or drops below the low ambienttemperature (Lo_A). Note that the Lo_Ti value should be higher than Hi_Ti, as forcolder outdoor temperatures (i.e. Lo_A) warmer water isrequired.

NOTE Changes made to a specific field setting are onlystored when the pr button is pressed. Navigating to anew field setting code or pressing the z button willdiscard the change made.

NOTE ■ Before shipping, the set values have been set asshown under "Field settings table" on page 13.

■ When exiting FIELD SET MODE, “88” may bedisplayed on the digital controller LCD while theunit initialises itself.

2

31

Button

Permission level

1 2 3

On/off button o operable operable operable

Operation changeover button h/c operable operable operable

Sanitary water heating button w – Not available –

Sanitary temperature adjust buttons

wbi

wbj– Not available –

Temperature adjust buttons

bgi

bgjoperable operable operable

Time adjust buttons pf

i

pf

j

operable

Programming button < operable

Schedule timer enable/disable button pr operable operable

Quiet mode button s operable

Weather dependent set point button ba operable

Inspection/test operation button z operable

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4PW33165-1F

■ [1-03] Set point at high ambient temperature (Hi_Ti): thetarget outgoing water temperature when the outdoortemperature equals or rises above the high ambienttemperature (Hi_A). Note that the Hi_Ti value should be lower than Lo_Ti, as forwarmer outdoor temperatures (i.e. Hi_A) less warm watersuffices.

[3] Auto restart

When power returns after a power supply failure, the auto restartfunction reapplies the user interface settings at the time of the powersupply failure.

Note that with the function disabled the schedule timer will not beactivated when power returns to the unit after a power supply failure.Press the pr button to enable the schedule timer again.

■ [3-00] Status: defines whether the auto restart function isturned ON (0) or OFF (1).

[9] Cooling and heating set points

The purpose of this field setting is to prevent the user from selectinga wrong (i.e., too hot or too cold) leaving water temperature. Theretothe heating temperature set point range and the cooling temperatureset point range available to the user can be configured.

■ [9-00] Heating set point upper limit: maximum leaving watertemperature for heating operation.

■ [9-01] Heating set point lower limit: minimum leaving watertemperature for heating operation.

■ [9-02] Cooling set point upper limit: maximum leaving watertemperature for cooling operation.

■ [9-03] Cooling set point lower limit: minimum leaving watertemperature for cooling operation.

Field settings table

Tt Target water temperature

TA Ambient (outdoor) temperature

= Shift value

Lo_Ti

Lo_A Hi_A TA

Tt

+ 05

00

- 05

Hi_Ti Shift value

NOTE It is therefore recommended to leave the auto restartfunction enabled.

First code

Second code Setting name

Installer setting at variance with default valueDefault value Range Step UnitDate Value Date Value

0 User permission level

00 User permission level 3 2 ~ 3 1 —

1 Weather dependent set point

00 Low ambient temperature (Lo_A) –10 –20 ~ 5 1 °C

01 High ambient temperature (Hi_A) 15 10 ~ 20 1 °C

02 Set point at low ambient temperature (Lo_Ti) 40 25 ~ 55 1 °C

03 Set point at high ambient temperature (Hi_Ti) 25 25 ~ 55 1 °C

2 Not available

3 Auto restart

00 Status 0 (ON) 0/1 — —

4 Not available

5 Not available

6 Not available

7 Not available

8 Not available

9 Cooling and heating set point ranges

00 Heating set point upper limit 55 37 ~ 55 1 °C

01 Heating set point lower limit 25 25 ~ 37 1 °C

02 Cooling set point upper limit 20 18 ~ 20 1 °C

03 Cooling set point lower limit 5 5 ~ 18 1 °C


Installation manual

13

Test run and final check

The installer is obliged to verify correct operation of the unit afterinstallation.

Test run operation

1 Push the z button 4 times so that the t icon is displayed.

2 Depending on the unit model, heating operation, coolingoperation or both must be tested as follows (when no action isperformed, the digital controller will return to normal mode after10 seconds or by pressing the z button once):

• To test the heating operation push the h/c button so the hicon is displayed. To start the test run operation press theo button.

• To test the cooling operation push the h/c button so the cicon is displayed. To start the test run operation press theo button.

3 The test run operation will end automatically after 30 minutes orwhen reaching the set temperature. The test run operation canbe stopped manually by pressing the o button once. If thereare misconnections or malfunctions, an error code will bedisplayed on the digital controller. Otherwise, the digitalcontroller will return to normal operation.

4 To resolve the error codes, see "Error codes" on page 16.

Final check

Before handing over the unit to the user, read followingrecommendations:

■ When the complete installation and all necessary settings havebeen carried out, close all unit covers.

■ The service panel of the switch box may only be opened by alicensed electrician for maintenance purposes.

MAINTENANCE

In order to ensure optimal availability of the unit, a number of checksand inspections on the unit and the field wiring have to be carried outat regular intervals.

If the unit is used for air conditioning application, the describedchecks must be executed at least once a year. In case the unit isused for other applications, the checks must be executed every 4months.

Beware that some parts of the unit can be extremely hot.

Chiller unit

1 Air heat exchanger

Remove dust and any other contaminant from the coil fins usinga brush and a blower. Blow from the inside of the unit. Take carenot to bend or damage the fins.

2 Fan motor

■ Clean the cooling ribs of the motor.

■ Check on abnormal noises. If the fan or motor are damaged,contact your local Daikin dealer.

3 Water pressure

Check if the water pressure is above 0.3 bar. If necessary addwater.

4 Water filter

Clean the water filter.

5 Water pressure relief valve

Check for correct operation of the pressure relief valve byturning the red knob on the valve counter-clockwise:

■ If you do not hear a clacking sound, contact your local Daikindealer.

■ In case the water keeps running out of the unit, close boththe water inlet and oulet shut-off valves first and then contactyour local Daikin dealer.

Digital controller

The digital controller does not need maintenance.

Remove dirt with a soft damp cloth.

NOTE Remark that during the first running period of the unit,required power input may be higher than stated on thenameplate of the unit. This phenomenon originatesfrom the compressor that needs elapse of a 50 hoursrun in period before reaching smooth operation andstable power consumption.

NOTE To display the last resolved error code, push the z

button 1 time. Push the z button again 4 times toreturn to normal mode.

Before carrying out any maintenance or repair activity,always switch off the circuit breaker on the supply panel,remove the fuses or open the protection devices of theunit.

Do never clean the unit with water under pressure.

Installation manual



4PW33165-1F

TROUBLESHOOTING

This section provides useful information for diagnosing andcorrecting certain troubles which may occur in the unit.

General guidelines

Before starting the troubleshooting procedure, carry out a thoroughvisual inspection of the unit and look for obvious defects such asloose connections or defective wiring.

Before contacting your local Daikin dealer, read this chapter carefully,it will save you time and money.

When a safety device was activated find out why the safety devicewas activated before resetting it. Under no circumstances safetydevices may be bridged or changed to a value other than the factorysetting. If the cause of the problem cannot be found, contact yourlocal Daikin dealer.

General symptoms

Symptom 1: The unit is turned on (o LED is lit) but the unit is not heating or cooling as expected

Symptom 2: Pump is making noise (cavitation)

Symptom 3: The water pressure relief valve opens

Symptom 4: The water pressure relief valve leaks

When carrying out an inspection on the switch box of theunit, always make sure that the power supply to the unit isswitched off.

POSSIBLE CAUSES CORRECTIVE ACTION

The temperature setting is not correct.

Check the controller set point.

The water flow is too low. • Check that all shut off valves of the water circuit are completely open.

• Check if the water filter needs cleaning.

• Make sure there is no air in the system (purge air).

• Check on the manometer that there is sufficient water pressure. The water pressure must be >0.3 bar (water is cold), >> 0.3 bar (water is hot).

• Check that the pump speed setting is on the highest speed (III).

• Make sure that the expansion vessel is not broken.

• Check that the resistance in the water circuit is not too high for the pump (refer to "Setting the pump speed" on page 11).

The water volume in the installation is too low.

Make sure that the water volume in the installation is above the minimum required value (refer to "Checking the water volume and expansion vessel pre-pressure" on page 6).


There is air in the system. Purge air.

Water pressure at pump inlet is too low.

• Check on the manometer that there is sufficient water pressure. The water pressure must be >0.3 bar (water is cold), >>0.3 bar (water is hot).

• Check that the manometer is not broken.

• Check that the expansion vessel is not broken.

• Check that the setting of the pre-pressure of the expansion vessel is correct (refer to "Setting the pre-pressure of the expansion vessel" on page 6).


The expansion vessel is broken. Replace the expansion vessel.

The water volume in the installation is too high.

Make sure that the water volume in the installation is under the maximum allowed value (refer to "Checking the water volume and expansion vessel pre-pressure" on page 6.


Dirt is blocking the water pressure relief valve outlet.

Check for correct operation of the pressure relief valve by turning the red knob on the valve counter-clockwise:• If you do not hear a clacking

sound, contact your local Daikin dealer.

• In case the water keeps running out of the unit, close both the water inlet and oulet shut-off valves first and then contact your local Daikin dealer.


Installation manual

15

Error codes

When a safety device is activated, the digital controller LED will beflashing, and an error code will be displayed.

A list of all errors and corrective actions can be found in the tablebelow.

Reset the safety by turning the unit OFF and back ON (by pushingdigital controller ON/OFF button 2 times). In case this procedure forresetting the safety is not successful, contact your local Daikin dealer.

Error code Failure cause Corrective action

80 Inlet water temperature thermistor error (inlet water thermistor broken)

Contact your local Daikin dealer.

81 Outlet water temperature thermistor failure (outlet water temperature sensor broken)


89 Water heat exchanger freeze-up failure (due water flow too low)

Refer to error code 7H.

Water heat exchanger freeze-up failure (due to refrigerant shortage)


7H Flow failure (water flow too low or no water flow at all, minimum required water flow is 9 l/min)

• Check that all shut off valves of the water circuit are completely open.

• Check if the water filter needs cleaning.

• For heat pump models: make sure that the unit is working within its operating range- ambient temperature

>–15°C - water temperature >30°C.Also refer to "Initial start-up at low ambient temperatures" on page 7.

• Make sure there is no air in the system (purge air).

• Check on the manometer that there is sufficient water pressure. The water pressure must be >0.3 bar (water is cold), >>0.3 bar (water is hot).

• Check that the pump speed setting is on the highest speed (III).

• Make sure that the expansion vessel is not broken.

• Check that the resistance in the water circuit is not too high for the pump (refer to "Setting the pump speed" on page 11).

A1 A1P PCB defective (in accessible switch box)


A5 Too low outlet water temperature (outlet water temperature measured by R1T too low)

Refer to error code 7H.

C0 Flow switch failure(flow switch remains closed while pump is stopped)

Check that the flow switch is not clogged with dirt.

C4 Heat exchanger thermistor failure (heat exchanger temperature sensor broken)


E1 A4P PCB defective(in non-accessible switch box)


E5 Overload activation of compressor

Check that the unit is operating within its operating range (refer to "Technical specifications" on page 17).Contact your local Daikin dealer.

E6 Compressor start-up failure Contact your local Daikin dealer.

E7 Fan lock failure (fan is locked) Check if the fan is not obstructed by dirt. If the fan is not obstructed, contact your local Daikin dealer.

E8 Overcurrent failure Check that the unit is operating within its operating range (refer to "Technical specifications" on page 17).

EA Cooling/heating switching failure(only for heat pump model)


F3 Too high discharge temperature(e.g. due to outdoor coil blockage)

Clean the outdoor coil. If the coil is clean, contact your local Daikin dealer.

F6 Too high condensing pressure during cooling (e.g. due to outdoor coil blocked by dirt)

Clean the outdoor coil. If the coil is clean, contact your local Daikin dealer.

Too high condensing pressure during cooling (e.g. due to unit operating outside its operating range)

Check that the unit is operating within its operating range (refer to "Technical specifications" on page 17).

FA High pressure failure (due to unit operating outside its operating range)

Check that the unit is operating within its operating range (refer to "Technical specifications" on page 17).

H0 Voltage and current sensor failure (sensor broken)


H9 Outdoor temperature thermistor failure (outdoor thermistor is broken)


J3 Discharge pipe thermistor failure Contact your local Daikin dealer.

J6 Outdoor unit heat exchanger thermistor broken or disconnected


L3 Electric component failure Contact your local Daikin dealer.



P4 Electric component failure Contact your local Daikin dealer.

U0 Refrigerant failure(due to refrigerant leak)


U2 Main circuit voltage failure Contact your local Daikin dealer.

U4 Communication error failure Contact your local Daikin dealer.

U7 Communication error failure Contact your local Daikin dealer.

UA Communication error failure Contact your local Daikin dealer.

Error code Failure cause Corrective action

Installation manual



4PW33165-1F

TECHNICAL SPECIFICATIONS

General

Electrical specifications

Cooling only models Heat pump modelsEWAQ005ACV3P EWAQ006ACV3P EWAQ007ACV3P EWYQ005ACV3P EWYQ006ACV3P EWYQ007ACV3P

Nominal capacity• cooling(a) 5.2 kW 6.0 kW 7.1 kW 5.2 kW 6.0 kW 7.1 kW• heating(b) — — — 6.1 kW 6.8 kW 8.2 kW

Dimensions H x W x D 805 x 1170 x 360 mmWeight• machine weight 100 kg• operation weight 104 kg

Connections• water inlet/outlet 1” MBSP(c)

• water drain hose nipple 1/2” FBSP(d)

Refrigerant• Type R410A• Charge 1.7 kg

Expansion vessel• Volume 6 l• Pre-pressure 1 bar• Maximum working pressure (MWP) 3.0 bar

Pump• Type water cooled• no. of speed 3• Nominal ESP normal: 25 kPa, high: 40 kPa

Sound level• Sound power 63 dBA 64 dBA 66 dBA 63 dBA 64 dBA 66 dBA• Sound pressure (at 1 m distance) 47 dBA 49 dBA 53 dBA 47 dBA 49 dBA 53 dBA

Internal water volume 4 lNominal water flow 14.3 l/min 17.2 l/min 20.4 l/min 14.3 l/min 17.2 l/min 20.4 l/minPressure relief valve water circuit 3 barOperation range - water side• heating — +25~+55°C• cooling +5~+20°C +5~+20°C

Operation range - air side• heating — –15~+25°C• cooling +10~+43°C +10~+43°C

(a) Nominal cooling capacities are based on the following Eurovent conditions:evaporator: 12°C/7°Ccondenser: 30°C/35°C

(b) Nominal heating capacities are based on the following Eurovent conditions:ambient: 7°C DB/6°C WBcondenser: 30°C/35°C

(c) MBSP = Male British Standard Pipe(d) FBSP = Female British Standard Pipe

Cooling only models Heat pump modelsEWAQ005ACV3P EWAQ006ACV3P EWAQ007ACV3P EWYQ005ACV3P EWYQ006ACV3P EWYQ007ACV3P

Power circuit• Phase 1P• Frequency 50 Hz• Voltage 230 V• Maximum running current 17.3 A 19 A


Installation manual

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4PW33165-1F

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Date post:	21-Jan-2016
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Installation Manual

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