DATA BOOK

1st edition

HOT WATER HEAT PUMP

MODEL

CAHV-P500YA-HPB(-BS)

Contents I ProductSpecifications

1.Specifications······························································22.ExternalDimensions················································33.CenterofGravity························································44.ElectricalWiringDiagrams·····································55.Accessories·································································86.Optionalparts······························································8

(1) RemotecontrollerPAR-W21MAA(2) Representative-watertemperaturesensor

TW-TH16

II ProductData1.Capacitytables·························································10

(1) Correctionbytemperature(2) Correctionbyrelativehumidity(3) Correctionbywaterflowrate(4) Waterpressuredrop(5) Operationtemperaturerange

2.Soundpressurelevels···········································143.Vibrationlevels·························································15

IIIInstallation1.SelectingtheInstallationSite······························16

(1) Installationconditions(2) Installationspacerequirements

2.Installationofunit·····················································20(1) Positionofanti-vibrationpads

3.Removingthemetalplatesandsaddlesaroundthecompressor·········································21

4.Installingtheunitinasnowarea·······················22

IVSystemDesign1.Waterpipeinstallation············································23

(1) Cautionforwaterpipeinstallation(2) Installingthewaterpipes(3) Waterpipeholesizeandlocation

2.Ensuringenoughwaterinthewatercircuit····27(1) Requiredamountofwater(2) Calculatingtherequiredamountofwaterinthe

watercircuit

3.Inlet/Outletpipeconnectionsizeandmaterial········································································27

V WiringDesign1.Electricalwiringinstallation··································28

(1) Wiringofmainpowersupplyandequipmentcapacity

(2) Cableconnections

2.Systemconfigurations···········································30(1) Typesofcontrolcables(2) SystemConfiguration

VIController1.PAR-W21MAAspecifications······························31

-2-

1.SpecificationsModel CAHV-P500YA-HPB(-BS)PowerSource 3-phase4-wire380-400-415V50/60HzCapacity*1 kW 45

kcal/h 38,700BTU/h 153,540

Powerinput kW 12.9Currentinput A 21.78-20.69-19.94COP(kW/kW) 3.49

Capacity*2 kW 45kcal/h 38,700BTU/h 153,540

Powerinput kW 10.9Currentinput A 10.6(400V)COP(kW/kW) 4.13

Capacity*3 kW 45kcal/h 38,700BTU/h 153,540

Powerinput kW 25.6Currentinput A 43.17-41.01-39.53COP(kW/kW) 1.76

Maximumcurrentinput*4 A 57.77-54.88-52.90Waterpressuredrop*1 12.9kPa(1.87psi)Temp.range Outletwatertemp*5 25~70°C

77~158°FOutdoortemp*5 D.B -20~40°C

-4~104°FCirculatingwatervolumerange 7.5m³/h-15.0m³/hSoundPressurelevel(measuredinanechoicroom)*1at1m dB(A) 59SoundPressurelevel(measuredinanechoicroom)*1at10m dB(A) 51SoundPressurelevel(measuredinanechoicroom)*4 dB(A) 63Diameterofwaterpipe Inlet mm(in) 38.1(Rc11/2")screw

Outlet mm(in) 38.1(Rc11/2")screwExternal finish Acrylicpaintedsteelplate<MUNSELL5Y8/1orsimilar>ExternaldimensionH×W×D mm

in.1,710(withoutlegs1,650)×1,978×759

67.3(withoutlegs65.0)×77.9×29.9Netweight kg(lb) 526(1,160)Accessories YstrainerRc11/2DesignPressure R407C MPa 3.85

Water MPa 1.0Drawing Wiring KC94G268X01

External KC94G195X01Heatexchanger Waterside stainlessstealplateandcopperbrazing

Airside Plate fin and copper tubeCompressor Type Inverterscrollhermeticcompressor

Manufacture MITSUBISHIELECTRICCORPORATIONStartingmethod InverterMotoroutput kW 7.5×2Caseheater kW 0.045×2Lubricant MEL32

FAN Air flow rate m³/min 185×2L/s 3,083×2cfm 6,532×2

Externalstaticpress. 0Pa(0mmH2O)Type×Quantity Propellerfan×2Control,Drivingmechanism Inverter-control,Direct-drivenbymotorMotoroutput kW 0.46×2

HICcircuit(HIC:Heatinter-Changer) CopperpipeProtection Highpressureprotection Highpres.Sensor&Highpres.Switchat3.85MPa(643psi)

Invertercircuit Over-heatprotection,OvercurrentprotectionCompressor Over-heatprotectionFanmotor Thermalswitch

Defrostingmethod Auto-defrostmode(Reversedrefrigerantcircle)Refrigerant Type×originalcharge R407C×5.5(kg)×2

Control LEVandHICcircuit

*1UnderNormalheatingconditionsatoutdoortemp.7ºCDB/6ºCWB(44.6°FDB/42.8°FWB)/outletwatertemp45ºC(113°F),inletwatertemp40ºC(104°F).

*2UnderNormalheatingconditionsatoutdoortemp.7ºCDB/6ºCWB(44.6°FDB/42.8°FWB)/outletwatertemp35ºC(95°F),inletwatertemp30ºC(86°F).

*3UnderHeatingconditionsatoutdoortemp.7ºCDB/6ºCWB(44.6°FDB/42.8°FWB),outletwatertemp70ºC(158°F).*4UnderHeatingconditionsatoutdoortemp.7ºCDB/6ºCWB(44.6°FDB/42.8°FWB)whenthisunitissettocapacity

prioritymodebynon-voltageBcontact. * Due to continuing improvement, the above specifications may be subject to change without notice.*Pleasedon'tusethesteelmaterialforthewaterpipingmaterial.*Pleasealwaysmakewatercirculateorpulloutthecirculationwatercompletelywhennotusingit.*Pleasedonotusegroundwaterandwellwater.*Installtheunitinanenvironmentwherethewetbulbtemp.willnotexceed32ºC.*Thewatercircuitmustusetheclosedcircuit.

*5

Outdoor temp -20°CDB/ Outlet water temp 40~65°C (Outdoor temp -4°FDB/ Outlet water temp 104°F~149°F) Outdoor temp -10°CDB/ Outlet water temp 33°C~70°C (Outdoor temp 14°FDB/ Outlet water temp 91°F~158°F)Outdoor temp 0°CDB/ Outlet water temp 25°C~70°C (Outdoor temp 32°FDB/ Outlet water temp 77°F~158°F)

01020304050607080

-30 -20 -10 0 10 20 30 40 50outdoor temp (°CDB)

outle

t wat

er te

mp

(°C

)

32

52

72

92

112

132

152

172

-22 -2 18 38 58 78 98 118

outdoor temp (°FDB)

outle

t wat

er te

mp

(°F

)

Unitconverterkcal=kWx860BTU/h=kWx3,412cfm=m3/minx35.31lb=kg/0.4536

I ProductSpecifications

-3-

2.ExternalDimensions•CAHV-P500YA-HPB(-BS)

Unit:mm

HOLE

S FO

R SI

GNA

L W

IRES

ø52

or ø

27 K

NOCK

OUT

HO

LE

HOLE

FO

R TR

ANSM

ISSI

ON

CABL

Eø3

4 KN

OCK

OUT

HO

LE

HOLE

S FO

R PO

WER

SUP

PLY

ø65

or ø

40 K

NOCK

OUT

HO

LE

2×4-

14×2

0 O

VAL

HOLE

S(A

NCHO

R BO

LT H

OLE

)

REM

OVA

BLE

INST

ALLA

TIO

N LE

GS

WAT

ER IN

LET

<Rc1

-1/2

B>

Rc1

1/2

WAT

ER O

UTLE

T <R

c1-1

/2B>

DISP

LAY

DISP

LAY

SERV

ICE

PANE

LSE

RVIC

E PA

NEL

CONT

ROL

BOX<

SUB>

CONT

ROL

BOX

<MAI

N>

ANCH

OR

BOLT

HO

LE

HOLE

TO

PAS

S RO

PE F

OR

CARR

YING

(MO

UNTI

NG P

ITCH

)

(MOUNTING PITCH)

Inta

keai

rIn

take

air

Inta

keai

r

Vent

ilatio

n • S

ervic

e Sp

ace

Disc

harg

e ai

rDi

scha

rge

air

Disc

harg

e ai

r

Flow

<

Plan

>Se

rvice

Spa

ce

Note

.Pl

ease

inst

all t

he d

rain

pan

bec

ause

def

rost

ing

wate

r or

dew

cond

ensa

tion

wate

r dro

ps fr

om h

oles

on

the

unit

base

.

<Acc

esso

ry>

• Y

type

stra

iner

1-1

/2 <

Bron

ze>

· · ·

1 pi

ece

(Thi

s is

for t

he w

ater

pip

ing.

P

leas

e in

stal

l it n

ear t

he w

ater

inle

t.)

Vent

ilatio

n Sp

ace

3050

3050

639

759

723

1860

60

1710114

160

100

115

1304

5875

(541

)

217

166

466 155

989

1410240

18 18

Mor

e th

an 8

0

More than 500More than 300

1978

723

145

608

145

145

608

145

Mor

e th

an 8

077

760

304

760

77

-4-

3.CenterofGravity•CAHV-P500YA-HPB(-BS)

Unit:mm

1978

307904

578

75916

50

GG

72318760304760 77

-5-

4.ElectricalWiringDiagrams•CAHV-P500YA-HPB(-BS)

5 46 2 135 46 3 12

34

76

53

21

4

L3L2

L1N

L3L2

L1N

1234564 123

12

21

31

2

4 13 2 1234567

321

41

23

21

3

65

41

23

12

3

1234

13

22

1

12 7 234 156

12

123

123

41

23

56

7

12

1234123

23

45

76

1

12

4 2 13 2 13

12

5

1

632

64

31

24

5

56

45

43

32

2

2

1

1

3

21

11

3

11

31

1

4

12

22

32

23

42

2

21

3

1

7

2

6 1

12

3

42 1

3 12

Con

trol B

oard

(ON

/OFF

)

CN142Dblue

CN142C

Flow

switc

h

Mod

e ch

ange

1

Capa

city m

ode

Dem

and

Anti f

reez

e

2324

External Water sensor.2

CN40

6ye

llow

T3T4

TH15

t°

Not

e1. S

ingl

e-do

tted

lines

indi

cate

fiel

d w

iring

.N

ote2

. The

sym

bols

of t

he fi

eld

conn

ectin

g te

rmin

als

are

as fo

llow

s.:T

erm

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blo

ck

:C

onne

ctio

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cut

ting

the

shor

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ireN

ote3

. Fas

ton

term

inal

s (*

1 se

ctio

n) h

ave

a lo

ckin

g fu

nctio

n.P

ress

the

tab

in th

e m

iddl

e of

the

term

inal

s to

rem

ove

them

.C

heck

that

the

term

inal

s ar

e se

cure

ly lo

cked

in p

lace

afte

r ins

ertio

n.

pow

er s

uppl

y 3

N~

50H

z 3

80/4

00/4

15V

pow

er s

uppl

y 3

N~

50H

z 3

80/4

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yello

wC

N51

2

No-

Volta

ge

cont

act

inpu

t

(CO

P pr

iorit

y/ C

apac

ity

prio

rity)

(ON

/OFF

)

H21

H20

(ON

/OFF

)

10'

digi

t1' di

git

External Water sensor.1

N

X21

X20

X21

X20

Drain pan heater

Emargencysignal(for extra heater)

X09

X08

(Nor

mal

/Err

or)

(Nor

mal

/Err

or)

(Hot

wat

er/

Hea

ting)

(coe

rcio

n/ b

y or

dina

ry)

(Hea

ting

Eco

/ H

eatin

g)M

ode

chan

ge2

(ON

/OFF

)

Pum

p

inte

rlock

Fa

n m

ode

Run

R

un/S

top

Air hex Ref temp.1

Water temp.setting Analog input 4~20mA

Error display output

Operation displayoutput

Suction Ref temp.1

Discharge Ref temp.1

N

72C

DC

12V

MAI

N BO

X

Pump operation command output

X04

X05

X06

X07

70

CNACred

To S

UB

BO

X T

B4

L1L2

L3

AB

CN102

MA

MB

CN3Ablue

RARB

No-

volta

ge c

onta

ct o

utpu

t

SV

2

7372

7175

74

CN

510

blue

CN

511

Z21

TH14

TH2

TO S

UB

BO

X T

B3

CN63

LSre

d

3

CN40

5bl

ue

X01

CN40

2gr

een

X02

CN40

4 b

lack

X03

CN40

1

CN502

CN501

CH

pum

p er

ror

CN142Bblue

SV

1

t°

21S

4

51P

52P

ELB

2

M 3~M

P

L2

CN801yellow

LED

2: C

PU

in o

pera

tion

Tran

smis

sion

cab

le fo

r mul

tiple

uni

t con

trol

Mea

sure

men

t ter

min

al fo

r mai

nten

ance

(M-N

ET)

M

(+)

TH3

(–)

T2

T1

4 5

CN63

HS

2

6 7

LEV

1

8

15

1

PL

161920

CN

LVC

blue

1112

L1

SW

01

52P

SW

02S

W03

ON

Outdoor temp.1

OFF

ON

OFF

Shell Ref temp.1

ON

TB

2

LED

1

LED

3:Li

t whi

leen

ergi

zed

9 10

1 2 10

109876543

blac

kC

NA

C2

1

M

3 4 5

(0)

LEV

2

6 7 8 9

EN

TER

Opt

iona

l rem

ote

cont

rolle

rco

nnec

ting

term

inal

(Non

-pol

ariz

ed)

SW

P2

Uni

t add

ress

set

ting

SW

P3

(0)

SW

U1

UP

(1)

SW

P1

SW

U2 DO

WN

SW

U3

BA

OFF

Water outlet temp.1

LO

CA

LSW

S1

SW

S2

L3

CN142A black

CN40

8

CN2

F06

AC

250V

3.15

A T

CN4CN332blue

Water inlet temp.1

TB

1

CN42

1 b

lack

62

2

66

CN

LVA

CN

407

red

OFF

t°t°

t°t°

t°t°

t°

63H

1

F2

RE

MO

TE

63LS

63

HS

ELB

1

TH9

TH4

TH1

TH10

TH11

Con

toro

l po

wer

circ

uit

CNTY

P1bl

ack

The

spec

ifica

tion

of th

e pr

oduc

t is

for t

he im

prov

emen

t a

prev

ious

not

ice

and

mig

ht c

hang

e.

TB5

TB6

TB6

TB6

TB5

TB6

TB6 TB

6

TB5

CNTYP2

UW

V MS 3~

red

whi

tebl

ack

Mot

or(C

ompr

esso

r)

CN

DC

Pin

k

CN

52C

red

C5

Z5

C3

C2

F02

R01

R02F0

1

R03

Z1Z2

R34

C30

C32

C34

C36

blac

k

F03

F04

AC

250V

6.3A

T

blac

k

whi

te

L

F01,

F02,

F03

AC

250V

6.3A

T

DS

A

R35

CT3

whi

teR33

SC

-L3

R30

red

whi

te

D1

R04

R32

R06

CN

2

C31

CN

18V

blue

UZ4

C17

CN

4re

d

TB21

CN

1B

L1C

N1A

red

Noi

seFi

lter TB

22

CN

3gr

een

TB24

Fan

mot

or(H

eat e

xcha

nger

)

N

C33

TB23

IPM

FAN

Boa

rdF0

5D

C70

0V4A

T

*1

M 3~

blac

k

U

red

Dio

deB

ridge

2

72C

1

blac

k

SC

-P2

C7

C8

CT1

2L2

R5

U

LED

1:N

orm

alop

erat

ion

+

red

C35

DC

L

SC

-L2

SC

-P1

SC

-U

CN

1

blac

k

C37

CN

5Vye

llow

C1

C9

C10

CN

6

4

C10

0

LED

1:N

orm

al o

pera

tion

(lit)

/ Err

or(b

link)

LED

3:C

PU

inop

erat

ion

R1

CN

4

CN

2

SC

-VU

IGB

T

CT2

2

U

CN

INV

SC

-WS

C-L

1

W

CN21

blue

U

CN

VD

C

CN

4bl

ue

C63

1

LED

2:E

rror

R63

0

R63

1

CN22

red t˚

Z3

CN

5

R31

C6

CNTY

Pbl

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C1

RS

H1

THH

S

FT-P

P N

t˚

FT-N

C4

+

INV

Boa

rd

+C63

0

+++

++ +

3

red

L3

THB

OX

-+

V

-6-

•CAHV-P500YA-HPB(-BS)

21

21

2 1

123

NL3

L2L1

NL3

L2

54

1

1234

2

5

2

12

32

3

34

4

21

6

1

321

21

7

23 1

3

6

1

2

56

41

2

4 1

3456

1234

1

13

2

12

3

12

21

3 2

7

5

3

1

12

237

3

6 14

2

3

122 1 12

3 12

2

2 13 25 44 32 11

2 24 33 1 115 4 132

23

45

76

12

11

23

45

62

2 13

32

13

21

22

11

12

34

34

51

23

45

64

62

31

L1

13

Con

trol B

oard

Z21

*1

CN

404

blac

k

TH8

t°Air hex Ref temp.2

CN

DC

Pin

k

72C

10'

digi

t1' di

git

Water inlet temp.2

Discharge Ref temp.2

Shell Ref temp.2

Suction Ref temp.2

Water outlet temp.2

CN2CN4CN332blue

blu

eC

N51

1

CN102CNS2yellow

CNITred

CNTY

P1bl

ack

F06

AC

250V

3.15

A T

CNACred

Con

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ci

rcui

t

CNS2yellow

CN102

CNITred

BSTP2

AA/M1B/M2TB3

TP1

Tran

smis

sion

po

wer

boa

rd

CN04red

Transmissionpower circuit

TB7

LED

1: P

ower

feed

ing To

MA

IN B

OX

MA

MB

X07

SV

2

ON

OFF

ON

OFF

blac

kC

NA

C2

(1)

(5)

Uni

t adr

ress

set

ting

(0)

LED

2:C

PU

in o

pera

tion

LEV

2LE

V1

X03

To M

AIN

BO

X T

B2

63H

1

CN801yellow

DO

WN

UP

EN

TER

SW

P1

SW

P2

SW

P3

BA

OFF

LO

CA

L

SW

U3

SW

U1

SW

U2

10

10987654321

ON

OFF

SW

03S

W02

SW

01

1 2 3 4 5 6 7 8 9 10

1 2 3 4 5 6 7 8 9

SW

S1

SW

S2

RE

MO

TE

LED

1

LED

3:Li

t whi

leen

ergi

zed

TH13

TH12

TH5

tt

t°

°°

° tt°

TH6

TH7

63LS

63

HS

CN63

HS

CN63

LSre

dC

N40

1C

N40

7re

dC

N40

2gr

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MM

CN

LVA

C

NLV

Cbl

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X01

X02CN502

CN501

CH

SV

1

21S

4

Not

e1. S

ingl

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lines

indi

cate

fiel

d w

iring

.N

ote2

. Fas

ton

term

inal

s (*

1 se

ctio

n) h

ave

a lo

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g fa

nctio

n.P

ess

the

tab

in th

e m

iddl

e of

the

term

inal

s to

rem

ove

them

.C

heck

that

the

term

inal

s ar

e se

cure

ly lo

cked

in p

lace

afte

r ins

ertio

n.

TB

4

CNTYP2

red

whi

tebl

ack

Mot

or(C

ompr

esso

r)

WV

UM

S 3~

CN

52C

red

C5

Z5

C3

C2

F02

R01

R02F0

1

R03

Z1Z2

R34

C30

C32

C34

C36

blac

k

F03

F04

AC

250V

6.3A

T

blac

k

whi

te

L

F01,

F02,

F03

AC

250V

6.3A

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DS

A

R35

CT3

R05

whi

teR33

SC

-L3

R30

red

whi

te

D1

R04

R32

R06

CN

2

C31

CN

18V

blue

UZ4

CN

5re

d

C17

CN

4re

d

TB21

CN

1B

L1C

N1A

red

Noi

seFi

lter

TB22

CN

3gr

een

TB24

Fan

mot

or(H

eat e

xcha

nger

)

N

C33

TB23

IPM

FAN

Boa

rdF0

5D

C70

0V4A

T

M 3~

blac

k

U

red

Dio

deB

ridge

2

72C

1

blac

k

SC

-P2

C7

C8

CT1

2L2

R5

U

LED

1:N

orm

alop

erat

ion

+

red

C35

DC

L

SC

-L2

SC

-P1

SC

-U

CN

1

blac

k

C37

CN

5Vye

llow

C1

C9

C10

CN

6

4

C10

0

LED

1: N

orm

al o

pera

tion(

lit)

/ E

rror

(blin

k)

LED

3:C

PU

inop

erat

ion

R1

CN

4

CN

2

SC

-VU

IGB

T

CT2

2

U

CN

INV

SC

-WS

C-L

1

W

CN

21bl

ue

U

CN

VD

C

CN

4bl

ue

C63

1

°

LED

2:E

rror

R63

0

R63

1

CN

22re

d t

Z3

CN

5

R31

C6

CNTY

Pbl

ack

C1

RS

H1

THH

St°

FT-P

P NFT

-N

C4

+

INV

Boa

rd

+C63

0

+++

++ +

3

red

L3

THB

OX

−+

V

SUB

BOX

-7-

•CAHV-P500YA-HPB(-BS)

Not

e

C10

0

R5

Ele

ctric

al re

sist

ance

R1

Hig

h pr

essu

re s

enso

r63

HS

Fan

mot

or

Dra

in p

an h

eate

r<H

21>

Em

arge

ncy

sign

al (f

or e

xtra

hea

ter)

<H20

>

Sol

enoi

d va

lve

(Hot

gas

circ

uit)

SV

2

LEV

1E

lect

roni

c ex

pans

ion

valv

e (In

ject

ion)

Ele

ctro

mag

netic

rela

y (In

verte

r mai

n ci

rcui

t)72

C

DC

reac

tor

DC

L

Pum

p m

otor

Fuse

Ele

ctro

mag

netic

con

tact

or (P

ump)

Ove

rcur

rent

rela

y (P

ump)

Ear

th le

akag

e br

eake

r

<MP

>

<F2>

<52P

><5

1P>

<ELB

1,2>

Ther

mis

tor

Ele

ctro

nic

expa

nsio

n va

lve

(Mai

n ci

rcui

t)

Fuse

63H

1

TH12

,13

TH5~

8

Hig

h pr

essu

re s

witc

h

Sol

enoi

d va

lve

(Inje

ctio

n ci

rcui

t)

4-w

ay v

alve

Low

pre

ssur

e se

nsor

Cra

nkca

se h

eate

r (fo

r hea

ting

the

com

pres

sor)

Ther

mis

tor

Com

pres

sor m

otor

MS

M TH1~

4

TH14

TH9~

11

63LS

CH

LEV

2

21S

4

SV

1

Ac

curr

ent s

enso

r

Cap

acito

r (E

lect

roly

sis)

F06

F05

F04

F03

F02

F01

CT3

CT2

2C

T12

MA

IN B

OX

SU

B B

OX

Fiel

d-

supp

lied

MA

IN B

OX

and

SU

B B

OX

Sym

bol e

xpla

natio

nex

plan

atio

nS

ymbo

l

Func

tion

setti

ng c

onne

ctor

Z21

IGB

T te

mpe

ratu

reTH

HS

6. U

se a

con

tact

that

take

s 12

VD

C 5

mA

for n

o-vo

ltage

con

tact

inpu

t.

1. T

he b

roke

n lin

es in

dica

te th

e op

tiona

l par

ts,fi

eld-

supp

lied

parts

, an

d fie

ld w

ork.

2. M

ake

sure

to c

onne

ct a

pum

p in

terlo

ck c

onta

ct.

A sh

ort-c

ircui

t may

cau

se a

bnor

mal

sto

p or

mal

func

tions

.3.

The

pre

set t

empe

ratu

re s

ettin

g ca

n be

sw

itche

d fro

m th

e no

-vol

tage

con

tact

or

by

setti

ng ti

me

rang

es.

5. W

hen

cabt

yre

cabl

e is

use

d fo

r the

con

trol c

able

wiri

ng,

use

a se

para

te c

abty

re c

able

for t

he fo

llow

ing

wiri

ng.

Usi

ng th

e sa

me

cabt

yre

cabl

e m

ay c

ause

mal

func

tions

an

d da

mag

e to

the

unit.

(a)

Opt

iona

l rem

ote

cont

rolle

r wiri

ng

(b)

No-

volta

ge c

onta

ct in

put w

iring

(

c) N

o-vo

ltage

con

tact

out

put w

iring

(

d) R

emot

e w

ater

tem

pera

ture

set

ting

(4-2

0mA

)

4. L

eave

a s

pace

of a

t lea

st 5

cm

bet

wee

n th

e lo

w v

olta

ge e

xter

nal w

iring

(n

o-vo

ltage

con

tact

inpu

t and

rem

ote

cont

rolle

r wiri

ng) a

nd w

iring

of 1

00V

or

gre

ater

.Do

not p

lace

them

in th

e sa

me

cond

uit t

ube

or c

abty

re c

able

as

this

will

dam

age

the

circ

uit b

oard

.

-8-

5.Accessories•CAHV-P500YA-HPB(-BS)

(A)Strainer

Rc1 1/2 Flow

160

100

115

(A)Installthestraineratthewaterpipeinlet.

6.Optionalparts(1) RemotecontrollerPAR-W21MAA

RefertoChapterVI“Controller”,section1.“PAR-W21MAAspecifications”.

Panel closed Panel open

-9-

(2) Representative-watertemperaturesensorTW-TH16(2)-1 Requiredpartsforinstallingarepresentative-watertemperaturesensor

aRepresentative-watertemperaturesensorbCableforconnectingbetweenthesensorandtheunit*cCableterminalforconnectingtothesensorandtheunitterminalblock*

(TerminalsforM4screwsx4)**aandbarefield-supplied.

(2)-2 Installingarepresentative-watertemperaturesensorAsshown in the figuresat right, install thesensoratthemergedpartofwaterpipesortheload-sidetank.Thesensorcanbeinstalledineithertheverticalorthehorizontalposition.When installing thesensor in thehorizontalposition,makesuretoplacethecable-access-holesidedown.

(2)-3 Wiringforarepresentative-watertemperaturesensorAsshowninthefiguresbelow,connectthecabletotherepresentative-watertemperaturesensorandtheterminalblockintheunitcontrolbox.

Note

Cable

Representative-water temperature sensor

Control box

Terminal block 12P in the unit control box

Unit

50

48

T2 or T3,T4T1

A

R 1/2SensorSensor characteristics

56

Terminal block on the sensor

3 - M4 screw(Screw for cable terminal installation)

ABB

ø78

5442157

20 12

ø10

ø6

· Resistance value: R = 15 kΩ ± 3% (0°C)· Numerical constant of B: 3460K

(Note) Install the sensor cable at least 5 cm away from the power cable to which 100 V or higher voltage is applied.

Ontheunitside,connect thesensorcable to the terminalsT1andT2intheterminalblock12Pintheunitcontrolbox.Connecttheshieldedcabletothegroundterminal.Onthesensorside,asshowninthefigureatright,runthecablethrough4,3,and2,attachthefield-suppliedterminalsforM4screwstothecable,andthenconnecttheterminalstothescrews5and6(terminalAandB).Cut theshieldedcableand leave itunconnected. (On theunitside, theshieldedcableshouldbeconnected to thegroundterminalalready.)

Tightenthetighteningscrew4,andcaulkthegapbetweenthetighteningscrew4andcable1topreventwaterleakage.

Cablespecifications

Size 2-core,1.25mm2orlargerType CVVSorCPEVSLength 20m

Cablespecifications

Size 2-core,1.25mm2orlargerType CVVSorCPEVSLength 20m

Horizontal installationVertical installation Horizontal installationVertical installation

Enlarged view of area A: Cable installation

Shielded cable (cut)

Cable (field-supplied)1

Watertight sealing rubber(Inner diameter ø11)

2

Washer (Inner diameter ø12)3

Tightening screw (Inner diameter ø15)4

Enlarged view of area A: Cable installation

Shielded cable (cut)

Cable (field-supplied)1

Watertight sealing rubber(Inner diameter ø11)

2

Washer (Inner diameter ø12)3

Tightening screw (Inner diameter ø15)4

-10-

1.Capacitytables(1) Correctionbytemperature•CAHV-P500YA-HPB(-BS)

(1)-1 EfficiencyPriorityMode Capacity Intakeairtemperature°C

-20 -15 -10 -7 -5 0 2 5 7 10 16 20 25 30 35 40

Outletwatertemperature°C

35 - - 40.3 42.2 42.4 42.7 42.8 43.5 45.0 45.0 45.0 45.0 45.0 45.0 45.0 45.045 32.0 37.4 40.6 42.4 42.6 42.9 43.0 43.5 45.0 45.0 45.0 45.0 45.0 45.0 45.0 45.055 32.2 37.7 40.8 42.7 42.8 43.1 43.2 43.6 45.0 45.0 45.0 45.0 45.0 45.0 45.0 45.060 32.2 37.8 40.9 42.8 42.9 43.2 43.3 43.7 45.0 45.0 45.0 45.0 45.0 45.0 45.0 45.065 32.2 37.9 41.0 42.9 43.0 43.3 43.4 43.7 45.0 45.0 45.0 45.0 45.0 45.0 45.0 45.070 - - 41.1 43.0 43.1 43.4 43.5 43.7 45.0 45.0 45.0 45.0 45.0 45.0 45.0 45.0

Thistableshowsthecapacitywhentherelativehumidityis85%.Theintakewet-bulbtemperatureisfixedto32°Cwhentheintakedry-bulbtemperatureis35°Corhigher.

Power input Intakeairtemperature°C-20 -15 -10 -7 -5 0 2 5 7 10 16 20 25 30 35 40

Outletwatertemperature°C

35 - - 17.0 16.9 16.2 14.7 14.2 12.0 10.9 9.82 8.20 7.40 6.60 6.30 6.02 5.7745 18.4 19.4 19.4 19.5 18.7 17.0 16.4 14.2 12.9 11.9 10.1 9.08 8.05 7.73 7.44 7.1755 21.2 22.5 22.7 22.8 22.0 20.1 19.5 17.5 16.5 15.2 13.2 12.1 11.0 10.3 9.75 9.2460 22.9 24.5 24.8 25.0 24.1 22.1 21.4 19.1 17.8 16.6 14.7 13.6 12.4 11.6 10.8 10.265 24.9 26.8 27.3 27.6 26.7 24.6 23.9 22.2 21.3 19.6 16.9 15.4 14.0 13.0 12.1 11.470 - - 30.2 30.8 29.8 27.6 26.9 25.7 25.6 23.9 19.9 18.0 16.0 14.8 13.8 12.9

Thistableshowsthepowerinputwhentherelativehumidityis85%.Theintakewet-bulbtemperatureisfixedto32°Cwhentheintakedry-bulbtemperatureis35°Corhigher.

Intake air temperature (°C)

Cap

acity

(kW

)

Intake air temperature (°C)

Pow

er in

put (

kW)

Outlet water temperature35,45,55,60,65,70°Cstarting from the bottom

Outlet water temperature35,45,55,60,65,70°Cstarting from the bottom

46.0

44.0

42.0

40.0

38.0

36.0

34.0

32.0

30.0-20 -15 -10 -5 0 5 10 15 20 25 30 35 40 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40

35.0

30.0

25.0

20.0

15.0

10.0

5.0

0.0

II ProductData

-11-

(1)-2 CapacityPriorityMode Capacity Intakeairtemperature°C

-20 -15 -10 -7 -5 0 2 5 7 10 16 20 25 30 35 40

Outletwatertemperature°C

35 - - 40.3 42.2 42.4 42.7 45.4 49.6 63.4 65.9 71.3 73.9 75.4 73.0 70.5 68.045 32.0 37.4 40.6 42.4 42.6 42.9 45.0 49.1 63.2 65.6 70.4 73.0 74.8 72.2 69.6 67.055 32.2 37.7 40.8 42.7 42.8 43.1 44.5 48.8 62.8 65.9 69.6 71.3 71.0 69.2 67.5 65.760 32.2 37.8 40.9 42.8 42.9 43.2 44.1 48.6 61.5 64.8 68.6 69.7 69.4 68.1 66.8 65.565 32.2 37.9 41.0 42.9 43.0 43.3 43.7 48.5 60.1 63.1 67.6 68.7 67.8 66.9 66.1 65.270 - - 41.1 43.0 43.1 43.4 43.5 48.3 58.7 61.3 65.8 66.7 66.1 65.7 65.4 65.0

Thistableshowsthecapacitywhentherelativehumidityis85%.Theintakewet-bulbtemperatureisfixedto32°Cwhentheintakedry-bulbtemperatureis35°Corhigher.

Power input Intakeairtemperature°C-20 -15 -10 -7 -5 0 2 5 7 10 16 20 25 30 35 40

Outletwatertemperature°C

35 - - 17.0 16.9 16.2 14.7 15.6 15.2 17.7 17.0 16.2 15.3 13.9 12.7 11.6 10.845 18.4 19.4 19.4 19.5 18.7 17.0 17.8 17.6 20.9 20.2 19.2 18.1 16.6 14.6 12.9 11.855 21.2 22.5 22.7 22.8 22.0 20.1 20.8 21.2 25.6 25.3 23.9 22.2 19.5 17.4 15.6 14.160 22.9 24.5 24.8 25.0 24.1 22.1 22.6 23.4 27.9 27.9 26.6 24.3 21.3 19.0 17.2 15.665 24.9 26.8 27.3 27.6 26.7 24.6 24.8 25.8 30.1 30.2 29.6 27.0 23.2 20.9 19.0 17.470 - - 30.2 30.8 29.8 27.6 27.5 28.6 32.6 32.7 32.5 29.5 25.2 23.1 21.3 19.7

Thistableshowsthepowerinputwhentherelativehumidityis85%.Theintakewet-bulbtemperatureisfixedto32°Cwhentheintakedry-bulbtemperatureis35°Corhigher.

Intake air temperature (°C)

Cap

acity

(kW

)

Intake air temperature (°C)

Outlet water temperature70,65,60,55,45,35°Cstarting from the bottom

Outlet water temperature35,45,55,60,65,70°Cstarting from the bottom

80.078.076.074.072.070.068.066.064.062.060.058.056.054.052.050.048.046.044.042.040.038.036.034.032.030.0

-20 -15 -10 -5 0 5 10 15 20 25 30 35 40 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40

Pow

er in

put (

kW)

35.0

30.0

25.0

20.0

15.0

10.0

5.0

0.0

-12-

(2) Correctionbyrelativehumidity•CAHV-P500YA-HPB(-BS)

0.8

0.85

0.9

0.95

1

1.05

-15 -10 -5 0 5 10 15 20 25 30 35 40Outside air temperature (°CDB)

Cap

acity

cor

rect

ion

fact

or 60

50

40

30

7080

85

90

RH (%)9085

8070

60

5040

30

Heating capacity correction factor (outlet water temperature 55°C or above)

-13-

(3) Correctionbywaterflowrate•CAHV-P500YA-HPB(-BS)

0.90

0.95

1.00

1.05

1.10

Water Flow rate [m3/h]

Rat

io o

f hea

ting

capa

city

Water Flow rate [m3/h]

Rat

io o

f uni

t in

put

7.5 8.5 9.5 10.5 11.5 12.5 13.5 14.50.90

0.95

1.00

1.05

1.10

7.5 8.5 9.5 10.5 11.5 12.5 13.5 14.5

*Conditions Outdoor temperature 0°C Intake water temperature 65°C Frequency of compressor 100Hz

*Conditions Outdoor temperature 0°C Intake water temperature 50°C Frequency of compressor 100Hz

(4) Waterpressuredrop•CAHV-P500YA-HPB(-BS)

0

10

20

60

50

40

30

70

80

6 8 10 12 14 16

Water flow rate [m3/h]

Wat

er-p

ress

ure

drop

[kPa

]

CAHV-P500YA-HPB (with stainer)

Water pressure drop of strainer

(5) Operationtemperaturerange•CAHV-P500YA-HPB(-BS)

01020304050607080

Out

let w

ater

tem

p. [°

C]

-5-10-15-20-25-30 0 5 10 15 20 25 30 35 40 45 50

Heating

Outdoor temp. [°C]

-14-

2.SoundpressurelevelsMeasurementcondition

•CAHV-P500YA-HPB(-BS)

Sound Pressure Level: 59.0 / 63.0 dB (COP Priority Mode / Capacity Priority Mode)Opetation condition… Spring, Autumn: Outdoor temp.: 16°CDB/12°CWB, Inlet water temp.: 40°C, Outlet water temp.: 45°C

Winter: Outdoor temp.: 7°CDB/ °CWB, Inlet water temp.: 65°C, Outlet water temp.: 70°C

Measurementlocation

1m

1.5m

10

20

30

40

50

60

70

80

90

63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000HzOctave band central frequency (Hz)

Oct

ave

band

sou

nd le

vel (

dB)

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

Capacity Priority ModeCOP Priority Mode

Approximate minimumaudible limit oncontinuous noise

-15-

3.Vibrationlevels•CAHV-P500YA-HPB(-BS)

20cm10cm

Concrete

Measurement location

Model VibrationLevels[dB]CAHV-P500YA-HPB(-BS) 47orless

-16-

1.SelectingtheInstallationSite(1) Installationconditions

Select the installation site in consultation with the client.Selectasitetoinstalltheoutdoorunitthatmeetsthefollowingconditions:

The unit will not be subject to heat from other heat sources.Thenoisefromtheunitwillnotbeaproblem.Theunitwillnotbeexposedtostrongwinds.Waterfromtheunitcanbedrainedproperly.Thespacerequirements(specifiedonpage17)aremet.

(1)-1.Providingprotectionagainstwinds

Usingthefiguresatrightasareference,provide adequate protection againstwinds.Aunit installedalone is vulnerable tostrongwinds.Select the installationsitecarefullytominimizetheeffectofwinds.When installingaunit inaplacewherethewindalwaysblows from thesamedirection,installtheunitsothattheoutletfaces away from the direction of thewind.

(1)-2.ColdClimateInstallationObservethefollowingwheninstallingtheunitsinareaswheresnoworstrongwindsprevail.

Avoiddirectexposuretorain,winds,andsnow.Whendecidingthehighoftheunitstandforsnowdamageprevention,considerthesnowaccumulation.Thereisapossibilitythataniciclemayformundertheunitstand.Considerthiswheninstallingtheunitontheroofforthismay injure person or the property.Iftheunitsareinstalledinthedirectlineofrain,winds,orsnow,installtheoptionalsnowhood(onboththedischargeandsuctionducts).Useasnownetorsnowfenceasnecessarytoprotecttheunit.Installtheunitonabaseapproximatelytwiceashighastheexpectedsnowfall.If theunit iscontinuouslyoperatedfora longtimewith theoutsideair temperaturebelowthefreezingpoint, installaheateratthebaseoftheunittopreventthewaterfromfreezingattheunitbottom.

•••••

•••

•

••

Wind

WindWind

Installtheoutdoorunitinaplacewhereitisnotexposedtodirectwind,suchasbehindabuilding.

• Installtheoutdoorunitsothattheoutlet/inletfacesawayfromthewind.

•

Wind

WindWind

Installtheoutdoorunitinaplacewhereitisnotexposedtodirectwind,suchasbehindabuilding.

• Installtheoutdoorunitsothattheoutlet/inletfacesawayfromthewind.

•

III Installation

-17-

(2) Installationspacerequirements(2)-1.Singleunitinstallation

Secureenoughspacearoundtheunitasshowninthefiguresbelow.<Unit:mm>

(2)-1-1.Wallsaroundtheunitdonotexceedtheheightlimit.

80

80

Max.500

300

Min.500A

A

A Wallsarelowerthantheunit'sheight.

(2)-1-2.Thereisawallabovetheunit.

Min.45º

Min.240

300

Min.1000

Flowhood(fieldsupplied)

(2)-1-3.Oneormoreofthewallsaroundtheunitaretallerthanthemaximumallowableheight<h>.

h

h

80

80

300

Max.500

Min.500+h

A

A

h

Max.500

300+h

Min.500+h

80

80

A

A

80

80

300+h

Min.500+h

h

Max.500h

h

A

A

A Wallsarelowerthantheunit'sheight.

-18-

(2)-1-4.Waterpipeinstallation

Min.80 Min.80

<Topview> <Sideview>

*Min.300

*Min.500Front

WallX

X

<Topview> <Sideview>Min.80 Min.80

*Min.300

*Min.500Front Wall

Foundation WaterpipeWaterpipe

Leaveaspaceofat least500between theunitand thewaterpipe if it isnotpossible to install theunitonaraisedfoundation.(SEE X inthefigure.)

(2)-2.Groupedandside-by-sideinstallationWhen multiple units are installed adjacent to each other, allow enough space for air circulation and a walk way between groupsofunitsasshowninthefiguresbelow.*Leavebothsidesofeachgroupofunitsopen.Aswith individual installation, if thewallheightexceedstheheight limit,widenthespaceinthefrontandthebackofagivengroupofunitsbytheamountthatexceedsthelimit(labeled<h>inthefigure).

<Unit:mm>(2)-2-1.Side-by-sideinstallation

Min.160

Uni

thei

ght

h

Min.500+h

Min.300+h

*

*

hMax.500

(2)-2-2.Face-to-faceinstallation

Therearewallsinthebackandthefrontofagivengroupofunits.

Min.500

Min.500

Min.500

Min.300+h

500

h

*

*

Unitheight

h

• Thereisawallononeside.

Unitheight

Min.500

Min.500

h

Min.80+h

•

-19-

(2)-2-3.Combinationofface-to-faceandside-by-sideinstallations

Therearewallsinthebackandthefrontofagivengroupofunits.

500

h

Min.300+h

Min.900

Min.300+h500h

*

*

• Thereisawallononesideandeitherthefrontorthebackofagivengroupofunit.

*

* Min.900

Min.300+h

500

h

Min.1000+h

Unitheight

h

•

(2)-2-4.Waterpipeinstallation

PatternA

<Topview> <Sideview>

Wall

Front Front Front

Min.160Min.160

WallA

A

Wall

Waterpipe

Waterpipe

PatternB

<Sideview>

Wall Wall WallFron

t

Fron

t

Fron

t

Fron

t

Front

Waterpipe

*Min.500

Min.500 Min.500 Min.500 Min.300B

Iftheproductwidth(labeledAinthefigure)timesthenumberofunitsthatareinstalledsidebysideexceeds6m,leaveaspaceof1000mmbetweeneachblock.Eachblockisdefinedasagroupofunitsthatfitwithin6m.

Iftheproductdepth(labeledBinthefigure)timesthenumberofunitsthatareinstalledinrowsexceeds6m,leaveaspaceof1000mmbetweeneachblock.Eachblockisdefinedasagroupofunitsthatfitwithin6m.

(2)-3.RequiredairflowratefortheunitUnit:m3/min

Model Standardairflowrate Minimumairflowrate Allowableexternalstaticpressure(Unit:Pa)

CAHV-P500YA-HPB(-BS) 370 333 10

-20-

2.InstallationofunitUnitsshouldbeinstalledonlybypersonnelcertifiedbyMitsubishiElectric.

Fixunittightlywithboltssothatunitwillnotfalldownduetoearthquakesorstrongwinds.Useconcreteorananglebracketasthefoundationofunit.Vibrationmaybetransmittedtotheinstallationsectionandnoiseandvibrationmaybegeneratedfromthefloorandwalls,dependingontheinstallationconditions.Therefore,provideamplevibrationproofing(cushionpads,cushionframe,etc.).Buildthefoundationinsuchwaythatthecorneroftheinstallationlegissecurelysupportedasshowninthefigure.Whenusingarubberisolatingcushion,pleaseensureitislargeenoughtocovertheentirewidthofeachoftheunit'slegs.Ifthecornersarenotfirmlyseated,theinstallationfeetmaybebent.The projecting length of the anchor bolt should be less than 30 mm.Hole-inanchorboltsarenotcompatiblewiththisproduct.However,iffixingbracketsaremountedonthe4locationsoftheunitattachmentpart,hole-inanchorboltscanbeused.Thedetachablelegcanberemovedatthesite.DetachingthedetachablelegLoosenthethreescrewstodetachthedetachableleg(Twoeachinthefrontandback).Ifthebaselegfinishisdamagedwhendetaching,besuretorepairatthesite.

Warning:Be sure to install unit in a place strong enough to withstand its weight.Any lack of strength may cause unit to fall down, resulting in a personal injury.Have installation work in order to protect against strong winds and earthquakes.Any installation deficiency may cause unit to fall down, resulting in a personal injury.

Whenbuildingthefoundation,givefullattentiontothefloorstrength,drainwaterdisposal<duringoperation,drainwaterflowsoutoftheunit>,andpipingandwiringroutes.

Precautions when routing the pipes and wires below the unit (Without detachable leg)Whenroutingthepipesandwiresbelowtheunit,besurethatthefoundationandbaseworkdonotblockthebasethrough-holes.Alsomakesurethefoundationisatleast100mmhighsothatthepipingcanpassundertheunit.

(1) Positionofanti-vibrationpads

Outline of the unit base frame

8 pads

•••

•

••

••

•

•

A:M10anchorboltprocuredatthesite.B:Cornerisnotseated.C:DetachablelegD:Screws

B

C

A

A

B

D

≤ 3

0 m

m ≤

30

mm

-21-

3.Removingthemetalplatesandsaddlesaroundthecompressor

Rubber packing(Remove.)

Saddle(Do not remove.)Two pieces of rubber sheets

(Remove.)

Note. Make sure which part must be removed, and which part must not.

Metal plate(Remove.)

Fixing screw(Remove.)

Fixing screw(Remove.)

Fixing screw(Remove.)

Saddle with a red tape(Remove.)

Metal plate(Remove.)

The metal plates and saddles are used only for transportation. Remove the metal plates and saddles before operating the unit to keep the unit from vibrating excessively.

-22-

4. Installing the unit in a snow areaInsnowyareas,sufficientprotectionagainstsnowandwindsshouldbeprovidedtoensureproperoperation.Eveninotherareas,appropriatemeasuresshouldbetakentominimizetheeffectsofwindsandsnowtoensurenormaloperation.Toensureproperoperation,installafield-suppliedoutlet/inletductiftheunitisdirectlyexposedtowind,rain,orsnowandisoperatedinthecoolingmodewiththeoutsideairtemperatureof10ºCorbelow.

(Note)Installtheunitonabaseapproximatelytwiceashighastheexpectedsnowfall.Thebasemustbemadeofanglesteelorsomethingtoletsnowandwindslipthroughthestructure.Thebasewidthmustnotexceedtheunitsize,otherwisesnowwillaccumulateonthebase.Installtheunitsothattheoutlet/inletfacesawayfromthewind.

•CAHV-P500YA-HPB(-BS)

Supply air

Outside air Outside air Outside air

Inlet side - RearInlet side - Left Inlet side - Right

Outlet side

445445

115

1295

925 925

880

2084

H

445

(760)

(Note)1. Install the unit so that the outlet/inlet faces away from the wind. Secure enough space around the unit to avoid a short cycle.2. Do not install the unit in a place where snow may fall from the roof. Also, remove the snow on the unit before it accumulates.3. Refer to the figure above when installing the base on site.

•

•

-23-

IV SystemDesign1.Waterpipeinstallation(1) Cautionforwaterpipeinstallation

P P

P

T

T 5

5

8'

a

4 4

1

11

6

7 35 4434a2b 1

34

821

6

1 9

1

c

indicatesthedirectionofthewaterflow. Citywater

Overflowedwater

Todrainoutlet

Minimumupwardgradientof1/200

Minimumupwardgradientof1/200

Accessholecover

Todrainoutlet

Airconditioningunit

Heatpumpunit

Water-sideheat

exchanger

1 Union joints/flange joints etc. Requiredtoallowforareplacementofequipment

2Thermometer Requiredtochecktheperformanceandmonitortheoperationoftheunits.

3Waterpressuregauge Recommendedforcheckingtheoperationstatus.

4Valve Required to allow for a replacement or cleaning of the flow adjuster.

5 Flexible joint Recommendedtopreventthenoiseandvibrationfromthepumpfrombeingtransmitted.

6Drainpipe Installthedrainpipewithadownwardinclinationofbetween1/100and1/200.Topreventdrainwaterfromfreezinginwinter,installthedrainpipeassteepanangleaspracticallypossibleandminimizethestraightline.Forcoldclimateinstallation,takeanappropriatemeasure(e.g.,drainheater)topreventthedrainwaterfromfreezing.

7Pump Useapumpthatislargeenoughtocompensateforthetotalwaterpressurelossandsupplysufficientwatertotheunit.

8Airventvalve Installairventingvalvestotheplaceswhereaircanaccumulate.Automaticairventvalves(suchas8')areeffective.

9Expansiontank Installanexpansiontanktoaccommodateexpandedwaterandtosupplywater.

0Waterpipe Usepipesthatallowforeasyairpurging,andprovideadequateinsulation.

aDrainvalve Installdrainvalvessothatwatercanbedrainedforservicing.

bStrainer Installastrainerneartheunittokeepforeignmaterialsfromenteringthewater-sideheadexchanger(supplied).

cFlowswitch Requiredtoprotecttheunit.

-24-

(1)-1 NotesonpipecorrosionWater processing and water quality controlWhenthecirculatingwaterquality ispoor,thewaterheatexchangercandevelopscales, leadingtoareductioninheat-exchangepowerandpossiblecorrosionoftheheatexchanger.Pleasepaycarefulattentiontowaterprocessingandwaterqualitycontrolwheninstallingthewatercirculationsystem.

Removal of foreign objects or impurities within the pipes. During installation, be careful that foreign objects, such as welding fragments, sealant particles, or rust, do not enter thepipes.

WaterQualityProcessing(1)-1-1Dependingonthequalityofwaterused,theheatexchangermaybecomecorodedorscaledup.Werecommend

regularwaterqualityprocessing.Watercirculationsystemsusingopenheatstoragetanksareparticularlypronetocorrosion.Whenusinganopen-typeheatstoragetank,installawater-to-waterheatexchanger,anduseaclosed-loopcircuitontheairconditionerside.Ifawatersupplytankisinstalled,keepcontactwithairtoaminimum,andkeepthelevel of dissolved oxygen in the water no higher than 1 mg/ℓ.

(1)-1-2Waterqualitystandard

Items

Lowermid-rangetemperaturewatersystemWater Temp. ≤ 60ºC

Highermid-rangetemperaturewatersystemWaterTemp.>60ºC Tendency

Recirculatingwater Make-upwater Recirculatingwater Make-upwater Corrosive Scale-forming

Standarditems

pH (25 ˚C) 7.0~8.0 7.0~8.0 7.0~8.0 7.0~8.0Electric conductivity (mS/m) (25 ˚C) (µs/cm) (25 ˚C)

30orless[300orless]

30orless[300orless]

30orless[300orless]

30orless[300orless]

Chlorideion (mgCl-/ℓ) 50orless 50orless 30orless 30orlessSulfateion (mgSO42-/ℓ) 50orless 50orless 30orless 30orless

Acidconsumption (pH4.8)(mgCaCO3/ℓ)

50orless 50orless 50orless 50orless

Totalhardness (mgCaCO3/ℓ) 70orless 70orless 70orless 70orlessCalciumhardness (mgCaCO3/ℓ) 50orless 50orless 50orless 50orlessIonicsilica (mgSiO2/ℓ) 30orless 30orless 30orless 30orless

Referenceitems

Iron (mg Fe/ℓ) 1.0orless 0.3orless 1.0orless 0.3orlessCopper (mg Cu/ℓ) 1.0orless 1.0orless 1.0orless 1.0orlessSulfideion (mgS2-/ℓ) Nottobedetected Nottobedetected Nottobedetected NottobedetectedAmmoniumion (mgNH4

+/ℓ) 0.3orless 0.1orless 0.1orless 0.1orlessResidual chlorine (mg Cl/ℓ) 0.25orless 0.3orless 0.1orless 0.3orlessFreecarbondioxide (mgCO2/ℓ) 0.4orless 4.0orless 0.4orless 4.0orlessRyznerstabilityindex — — — —

Reference:GuidelineofWaterQualityforRefrigerationandAirConditioningEquipment.(JRAGL02E-1994)

(1)-1-3Pleaseconsultwithawaterqualitycontrolspecialistaboutwaterqualitycontrolmethodsandwaterqualitycalculationsbeforeusinganti-corrosivesolutionsforwaterqualitymanagement.

(1)-1-4Whenreplacingapreviouslyinstalledairconditioningdevice(evenwhenonlytheheatexchangerisbeingreplaced),firstconductawaterqualityanalysisandcheckforpossiblecorrosion.Corrosioncanoccurinwatersystemseveniftherehasbeennopriorsignsofcorrosion.If the water quality level has dropped, please adjust water quality sufficiently before replacing the unit.

•

•

-25-

(1)-1-5SuspendedsolidsinthewaterSand,pebbles,suspendedsolids,andcorrosionproductsinwatercandamagetheheatingsurfaceoftheheatexchangerandcausecorrosion.Installagoodqualitystrainer(20meshorbetter)attheinletoftheunittofilteroutsuspendedsolids.Removing foreign substances from the water systemConsiderinstallingasettlementtankorabypassstrainertoremoveforeignsubstancesfromthewatersystem.Selectastrainercapableofhandlingtwotothreepercentofthecirculatingwater.Thefigurebelowshowsasamplesystemwithabypassstrainer.

Airconditioningunit

HeatpumpunitWaterpump

BypassstrainerStrainer(20meshoritsequivalent)

(1)-1-6ConnectingpipesmadefromdifferentmaterialsIfdifferenttypesofmetalsareplacedindirectcontactwitheachother,thecontactsurfacewillcorrode.Installaninsulatingmaterialbetweenpipesthataremadeofdifferentmaterialstokeepthemoutofdirectcontactwitheachother.

-26-

(2) Installingthewaterpipes(2)-1 Installingthestrainer

Install thesuppliedstraineronthe inletwaterpipenear theunit to filteroutsuspendedsolidsandpreventcloggingorcorrosionoftheheatexchanger.Installthestrainerinawaythatallowsforeasyaccessforcleaning,andinstructtheusertocleanitregularly.Operatingtheunitswithacloggedstrainermaycausetheunitstomakeanabnormalstop.Selectalocationtoinstallastrainer,takingintoconsiderationtheinstallationangle,insulationthickness,andmaintenancespace.*ThedimensionsgivenbelowindicatetheamountofspacenecessarywhenscrewinginaY-shapedstrainer.

Sampleinstallation1 Sampleinstallation2

Rc11/2

160

100

115

Pipes(field-supplied)

Y-shapedstrainer(supplied)

Y-shapedstrainermaintenanceaccessspace

Min.110

*M

in.4

3

Max.25º

Min.110

Pipes(field-supplied)

Y-shapedstrainer(supplied)

Y-shapedstrainermaintenanceaccessspace

<Unit:mm>

153

(2)-2 InstallingaflowswitchInstallaflowswitchthatmeetsthefollowingspecificationsonthewaterpipe.Connecttheflowswitchtotheflowswitchcontactontheunit.

Minimumflowrate=7.5m³/h(125L/min)Unitusagerange(waterflowrate):7.5-15.0m³/h

(3) Waterpipeholesizeandlocation

Wateroutlet<Rc1-1/2B>

Waterinlet<Rc1-1/2B>

155

466

989

-27-

2. Ensuring enough water in the water circuit(1) Requiredamountofwater

If theamountofwater in thewatercircuit(circulatingwatercircuit) is insufficient, theunitoperationhoursmaybecomeshorteror theamountofwater temperaturechange tobecontrolledmaybecomeextremely large.Also, thedefrostoperationduringtheheatingmodemaynotfunctionproperly.Refertothetablebelowfortheminimumamountofwaterrequiredinthecircuit.Ifthewaterpipeistooshorttokeepenoughamountofwater,installacushiontankinthewaterpipetoensureenoughamountofwater.

Model Minimum amount of water (ℓ)CAHV-P500YA-HPB(-BS) 360

(2) CalculatingtherequiredamountofwaterinthewatercircuitTherequiredamountofwaterinthewatercircuitcanbeobtainedfromthefollowingformula.

(Requiredamountofwaterinthewatercircuit)=(Amountofwaterthatcanbeheldinthewaterpipe)+(Amountofwaterthatcanbeheldintheheatsourceunit)+(Amountofwaterthatcanbeheldintheload-sideunit)

The amount of water that can be held per meter of the water pipe (ℓ/m)

Pipesize3/4B (20A) 1B(25A) 11/4B(32A) 11/2B(40A) 2B(50A) 11/2B(65A)

0.37 0.60 0.99 1.36 2.20 3.62

The amount of water that can be held in the heat source unit (ℓ)

CAHV-P500YA-HPB(-BS)14

3. Inlet/Outlet pipe connection size and materialThetablebelowshowstheinlet/outletpipeconnectionsize.

Inlet/Outlet pipe connection size

Model Inletpipeconnection OutletpipeconnectionCAHV-P500YA-HPB(-BS) R1-1/2Femalescrew<SUS304> R1-1/2Femalescrew<SUS304>

-28-

V WiringDesign1. Electrical wiring installation(1) Wiringofmainpowersupplyandequipmentcapacity

Schematic Drawing of Wiring (Example)A:Switch(Breakersforwiring

andcurrentleakage)B:BreakersforcurrentleakageC:OutdoorunitD:PullboxE:Indoorunit

BC3N~380–415V

L1, L2, L3, N

B

A

A~220–240VL, N

PE

PE PEE

PE PEE

D

E E

Thickness of wire for main power supply, capacities of the switch and system impedance

ModelMinimumwirethickness(mm2)

BreakerforcurrentleakageLocalswtich(A) Breakerfor

wiring(NFB)(A)Max.Permissive

SystemImpedanceMaincable Branch Ground Capacity Fuse

CAHV-P500YA-HPB 25 - 25 75A100mA0.1sec.orless 75 75 75 0.28 Ω

1. Use dedicated power supplies for the unit. Ensure each units are wired individually.2. Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with

the wiring and connections.3. The wire size is the minimum value for metal conduit wiring. If the voltage drops, use a wire that is one rank

thickerindiameter. Make sure the power-supply voltage does not drop more than 10%.4. Specific wiring requirements should adhere to the wiring regulations of the region.5. Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed

flexible cord (design 60245 IEC57). 6. A switch with at least 3 mm contact separation in each pole shall be provided by the Air Conditioner installer.7. Do not install a phase advancing capacitor on the motor. Doing so may damage the capacitor and result in fire. The figure in the parentheses indicates the capacity necessary when the "Maximum capacity operation"

settingisselected.Warning:

• Be sure to use specified wires for connections and ensure no external force is imparted to terminal connections. If connections are not fixed firmly, heating or fire may result.

• Be sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent may includesomeamountofdirectcurrent.

Caution:• Some installation sites may require attachment of an earth leakage breaker for the inverter. If no earth leakage

breaker is installed, there is a danger of electric shock.• Do not use anything other than a breaker and fuse with the correct capacity. Using a fuse or wire of too large

capacitymaycausemalfunctionorfire. Note:

• This device is intended for the connection to a power supply system with a maximum permissible system impedance shown in the above table at the interface point (power service box) of the user’s supply.

• The user must ensure that this device is connected only to a power supply system which fulfils the requirement above.

If necessary, the user can ask the public power supply company for the system impedance at the interface point.

• This equipment complies with IEC 61000-3-12 provided that the short-circuit power SSC is greater than or equal to SSC (*2) at the interface point between the user’s supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment is connected only to a supply with a short-circuit power SSC greater than or equal to SSC (*2).

SSC(*2)Model SSC(MVA)

CAHV-P500YA-HPB 4.11

-29-

(2) Cableconnections(2)-1 TerminalBlockArrangement

Toremovethefrontpanelofthecontrolbox,unscrewthefourscrewsandpullthepanelforwardandthendown.

75

L1 L2 L3 N

74 73 72 71 70 66 62 20 19 12 11

2625

2423

1615

T2T1

MB

MA

RBRA

Controlterminalblock

Powersupplyterminalblock

TB2

Cablestrap

Powerwire

Cablefromanotherunit

TransmissioncableCablestrap

Powersupplyterminalblock

Important:Powersupplycableslargerthan25mm²indiameterarenotconnectabletothepowersupplyterminalblock(TB2).Useapullboxtoconnectthem.

(2)-2 InstallingtheconduittubePunchouttheknockoutholeforwireroutingatthebottomofthefrontpanelwithahammer.Whenputtingwiresthroughknockoutholeswithoutprotectingthemwithaconduittube,deburrtheholesandprotectthewireswithprotectivetape.Ifdamagefromanimalsisaconcern,useaconduittubetonarrowtheopening.

•

•

• Burr

Knockouthole

Burr

Knockouthole

-30-

2.Systemconfigurations(1) Typesofcontrolcables

Controlcablewiring

Remotecontrollercable

Size 0.3-1.25mm²(Max.200mtotal)Recommendedcabletypes CVV

M-NETcablebetweenunits *1

Size Morethan1.25mm²(Max.120mtotal)Recommendedcabletypes ShieldingwireCVVS,CPEVSorMVVS

Externalinputwiresize Min.0.3mm²Externaloutputwiresize 1.25mm²

*1.UseaCVVSorCPEVScable(Max.totallengthof200m)ifthereisasourceofelectricalinterferencenearby(e.g.,factory)orthetotallengthofcontrolwiringexceeds120m.

(2) SystemConfiguration(2)-1 Individualsystem

Eachunitisoperatedindividuallybyconnectingadrycontactswitch/relaytoeachunit.

PCB PCB

Unit(SUB circuit)

Unit(MAIN circuit)

PCB PCB

Unit(SUB circuit)

Unit(MAIN circuit)

Externaltemperature

sensor

Externaltemperature

sensor

Field-supplied drycontact switch/relayor remote controller

(PAR-W21MAA)

Field-supplied drycontact switch/relayor remote controller

(PAR-W21MAA)

(2)-2 Multiplesystem(2-16units)Agroupofunit that consistsofonemainunit andup to15subunits isoperatedcollectivelybyconnectingarepresentativewatertemperaturesensorandadrycontactswitch/relaytothemainunit.

PCB PCB

Unit(SUB circuit)

Unit(MAIN circuit)

PCB PCB

Unit(SUB circuit)

Unit(MAIN circuit)

PCB PCB

Unit(SUB circuit)

Unit(MAIN circuit)

Externaltemperature

sensor

Inter-unit wiring(M-NET line)

n units

SUB unit SUB unit(s)MAIN unit

Inter-unit wiring(M-NET line)

Field-supplied drycontact switch/relayor remote controller

(PAR-W21MAA)

•

•

-31-

VI Controller1. PAR-W21MAA specifications

Item Description Operations Display

ON/OFF Runsandstopstheoperationofagroupofunits

OperationmodeswitchingSwitchesbetweenHotWater/Heating/HeatingECO/Anti-freeze/Cooling*Availableoperationmodesvarydependingontheunittobeconnected.*Switchinglimitsettingcanbemadeviaaremotecontroller.

Watertemperaturesetting

Temperaturecanbesetwithintherangesbelow.(inincrementsof1°Cor1°F)HotWater 30°C~70°CHeating 30°C~45°CHeatingECO 30°C~45°CAnti-freeze 10°C~45°CCooling 10°C~30°C*Thesettablerangevariesdependingontheunittobeconnected.

Watertemperaturedisplay10°C~90°C(inincrementsof1°Cor1°F)*Thesettablerangevariesdependingontheunittobeconnected.

Permit/Prohibitlocaloperation

Individuallyprohibitsoperationsofeachlocalremotecontrolfunction:ON/OFF,Operationmodes,watertemperaturesetting,Circulatingwaterreplacementwarningreset.*Upperlevelcontrollermaynotbeconnecteddependingontheunittobeconnected.

Weeklyscheduler ON/OFF/Watertemperaturesettingcanbedoneupto6timesonedayintheweek.(inincrementsofaminute)

Error Whenanerroriscurrentlyoccurringonaunit,theafflictedunitandtheerrorcodearedisplayed.

Selfcheck(Errorhistory) SearchesthelatesterrorhistorybypressingtheCHECKbuttontwice.

Testrun EnablestheTestrunmodebypressingtheTESTbuttontwice.*Testrunmodeisnotavailabledependingontheunittobeconnected.

LANGUAGEsetting ThelanguageonthedotmatrixLCDcanbechanged.(Sevenlanguages)English/German/Spanish/Russian/Italian/French/Swedish

OperationlockingfunctionRemotecontrolleroperationcanbelockedorunlocked.•All-switchlocking•LockingexceptON/OFFswitch

DATA BOOK CAHV-P500YA-HPB(-BS)