HYDRONIC HEAT EXCHANGER UNITS PWFY-P-NMU-E-BU, -NMU-E … · Model PWFY-P36NMU-E-BU PWFY-P36NMU-E-AU PWFY-P72NMU-E-AU R2, H2i R2, WR2 series Y, H2i Y, WY series R2, H2i R2, WR2 series

PWFY-1PWFY-P-NMU-E-BU, -NMU-E-AU (June 2015)© 2014 Mitsubishi Electric US, Inc.

HYDRONIC HEAT EXCHANGER UNITS

PWFY-P-NMU-E-BU, -NMU-E-AU

1. GENERAL DESCRIPTION ......................................................................................................................................PWFY-2

2. SPECIFICATIONS ...................................................................................................................................................PWFY-3

3. EXTERNAL DIMENSIONS ......................................................................................................................................PWFY-6

4. CENTER OF GRAVITY ...........................................................................................................................................PWFY-8

5. ELECTRICAL WIRING DIAGRAMS ........................................................................................................................PWFY-9

6. REFRIGERANT CIRCUIT DIAGRAMS .................................................................................................................PWFY-11

7. SOUND PRESSURE LEVELS ..............................................................................................................................PWFY-127-1. Sound Pressure Levels and NC Curves ......................................................................................................PWFY-12

8. VIBRATION LEVELS .............................................................................................................................................PWFY-13

9. CAPACITY TABLES ..............................................................................................................................................PWFY-149-1. Correction by Temperature ...........................................................................................................................PWFY-149-2. Correction by Water Volume ........................................................................................................................PWFY-319-3. Water Pressure Drop ...................................................................................................................................PWFY-349-4. Cooling Operation in Cold Climates .............................................................................................................PWFY-38

10. OPTIONAL PARTS ..............................................................................................................................................PWFY-39

11. SYSTEM DESIGN ...............................................................................................................................................PWFY-4011-1. Electrical Work ...........................................................................................................................................PWFY-4011-2. M-NET Control ...........................................................................................................................................PWFY-4111-3. Installation ..................................................................................................................................................PWFY-46

PWFY-2 PWFY-P-NMU-E-BU, -NMU-E-AU (June 2015)© 2014 Mitsubishi Electric US, Inc.

1. GENERAL DESCRIPTIONUnit Configuration

Model PWFY-P36NMU-E-BU PWFY-P36NMU-E-AU PWFY-P72NMU-E-AU

R2, H2i R2, WR2 seriesY, H2i Y, WY series

R2, H2i R2, WR2 series

BC Controllers

BC Controllers: CMB-P104,105,106,108,1010,1016NU-GMain BC Controllers: CMB-P108,1010,1013, 1016-GA / CMB-P1016NU-HA

Sub BC Controllers: CMB-P104,108NU-GB / CMB-P1016NU-HB

Operation Temperature RangePWFY-P36NMU-E-BU

Only PWFY PWFY with standard indoor unit Only standard indoor units

Heating (WB)Inlet water temperature R2/WR2 series 50 to 160° F (10 to 71° C) 50 to 160° F (10 to 71° C) ―

Outdoor temperatureR2 series -4 to 90° F (-20 to 32° C) -4 to 90° F (-20 to 32° C) -4 to 60° F (-20 to 15.5° C)

H2i R2 series -13 to 90° F(-25 to 32° C) -13 to 90° F(-25 to 32° C) -13 to 60° F(-25 to 15.5° C)

Circulating Water temperature WR2 series 50 to 113° F (10 to 45° C) 50 to 113° F (10 to 45° C) 50 to 113° F (10 to 45° C)

PWFY-P36, 72NMU-E-AU

Connectable outdoor unit capacity range

Only PWFY PWFY withstandard indoor unit

Only standardindoor units

R2/H2i R2/WR2 series 50 to 100% 50 to 150% 50 to 150%

PWFY-P36NMU-E-BU

PWFY-P36, 72NMU-E-AU

Only PWFY PWFY withstandard indoor unit

Only standardindoor units

R2/H2i R2/WR2 series 50 to 100% 50 to 150% 50 to 150%

Y/H2i Y/WY series 50 to 100% 50 to 130% 50 to 130%

Only PWFY PWFY with standard indoor unit

Cooling Heating Cooling Heating

Inlet water temperature

R2/WR2 series 50 to 95° F (10 to 35° C) 50 to 105° F (10 to 41° C) 50 to 95° F (10 to 35° C) 50 to 105° F (10 to 41° C)

Y/H2i Y/WY series 50 to 95° F (10 to 35° C) 50 to 105° F (10 to 41° C) 50 to 95° F (10 to 35° C) 50 to 105° F (10 to 41° C)

Outdoor temperature

R2 series 23 to 115° F (-5 to 46° C) -4 to 90° F(-20 to 32° C) 23 to 115° F (-5 to 46° C) -4 to 90° F(-20 to 32° C)

H2i R2 series 23 to 115° F (-5 to 46° C) -13 to 90° F(-25 to 32° C) 23 to 115° F (-5 to 46° C) -13 to 90° F(-25 to 32° C)

Y series 23 to 115° F(-5 to 46° C) -4 to 60° F(-20 to 15.5° C) 23 to 115° F(-5 to 46° C) -4 to 60° F(-20 to 15.5° C)

H2i Y series 23 to 109° F(-5 to 43° C) -13 to 60° F(-25 to 15.5° C) 23 to 109° F(-5 to 43° C) -13 to 60° F(-25 to 15.5° C)

Circulating Water temperature

WR2 series 50 to 113° F (10 to 45° C) 50 to 113° F (10 to 45° C) 50 to 113° F (10 to 45° C) 50 to 113° F (10 to 45° C)

WY series 50 to 113° F (10 to 45° C) 50 to 113° F (10 to 45° C) 50 to 113° F (10 to 45° C) 50 to 113° F (10 to 45° C)


2. SPECIFICATIONS

Model Power source

kWHeating capacitykcal / h(Nominal )Btu / h

*1*1*1

kWAW.B

dB<A>in.(mm) in.(mm) in.(mm) in.(mm) in.(mm)

mmin.lbs(kg)

kW

-

Power input

LiquidGas

Current inputOutdoor temp.Inlet Water temp.Total capacity

Temp. range ofheatingConnectableoutdoor unit Model / Quantity

Sound pressure level (measured in anechoic room)Diameter of refrigerant pipeDiameter of water pipeField drain pipe size

External finishExternal dimension H × W × D

Net weightCompressor

MakerType

Starting methodMotor output

Circulating waterRange

Protection on Internal circuit(R134a)

High pressure protectionInverter circuit (COMP)CompressorType × original chargeRefrigerantControlR410ADesign pressure

R134a

Water

ExternalDrawing

Standard attachment

Optional parts

Remark

Note: *1 Nominal heating conditions (PWFY conditions are indicated in the parentheses.) <R2/H2i R2-series> kcal = kW x 860

BTU/h = kW x 3,412 cfm = m3/min x 35.31 G(us) = L × 0.2642 lbs = kg / 0.4536 psi = MPa×145.038

Outdoor Temp. : 47°FDB / 43°FWB (8.3°CDB/6.1°CWB)Pipe length : 25 ft (7.6 m)Level difference : 0 ft (0 m)(Inlet water Temp.: 149°F (65°C) Water flow rate: 9.2 gpm (2.15 m3/h))

<WR2-series>Circulating water Temp.: 70°F (21.1°C)Pipe length : 25 ft (7.6 m)Level difference : 0 ft (0 m)(Inlet water Temp.: 149°F (65°C) Water flow rate 9.2 gpm (2.15 m3/h))

* Due to continuing improvement, the above specifications may be subject to change without notice. * Install the unit in an environment where the wet bulb Temp. will not exceed 90°F (32°C).

* The unit is not designed for outside installations. * Please don't use the steel material for the water piping material. * The water circuit must use the closed circuit.

* Please do not use it as a drinking water. * Please always make water circulate or add the brine to the circulation water when the ambient temperature becomes 32°F (0°C) or less. * Please always make water circulate or pull out the circulation water completely when not using it. * Please do not use groundwater and well water.

* The specification data is subject to rounding variation.

Unit converter

LubricantOperation volume

InletOutlet

Accessory

WiringDocument

m3/hG/hgpmL/min

MPa

MPa

psi

psi

psiMPa 1.00

Installation Manual, Instruction Book

800 (785 without legs) × 450 × 300

KE94C344

Inverter1.0

Over-heat protection, Over-current protection

R134a x ( 2lbs + 7oz) ( 1.1kg )

10,10011.7

WKB94T460

NONE

44

NO

Strainer, Heat insulation material, 2 × Connector sets, 2 × Washer, wire

PWFY-P36NMU-E-BU1-phase 208-230V 60Hz

PT3/4 (27.2) Screw

MITSUBISHI ELECTRIC CORPORATION

NEO22

Φ1-1/4 (Φ32)

Inverter rotary hermetic compressor

31-1/2" (30-15/16" without legs) × 17-3/4” × 11-13/16”133 (60)

PT3/4 (27.2) Screw

12.30 - 11.12

50~100% of outdoor unit capacityPURY-P•T(S)KMU-A(-BS)

PURY-HP•Y(S)KMU-A(-BS)PQRY-P•T(S)HMU-APQRY-P•Y(S)HMU-A

Φ5/8 (Φ15.88) Brazed

-4~90°F (-20~32°C)

Φ3/8 (Φ9.52) Brazed

39,900

50~160°F (10~71°C)

2.48

0.6~2.15158~5682.6~9.410~36

LEV 6014.155223.60

High pressure sensor, High pressure switch at 3.60 MPa (522 psi)

Discharge thermo protection, Over-current protection

145

Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items shall be referred to the Installation Manual.

PURY-HP•T(S)KMU-A(-BS)PURY-P•Y(S)KMU-A(-BS)


2. SPECIFICATIONS

Model Power source

kW*1Heating capacitykcal / hBtu / hkWAW.B

*1(Nominal)*1

Power inputCurrent inputOutdoor temp.Temp. range of

W.B-

heating

Inlet Water temp.kW*2Cooling capacitykcal / hBtu / hkWAD.B

*2(Nominal)*2

Power inputCurrent inputOutdoor temp.Temp. range of cooling

D.B-Inlet Water temp.

Total capacityModel / Quantity

Connectableoutdoor unit

Sound pressure level (measured in anechoic room) dB<A>in.(mm)in.(mm)

Diameter of refrigerant pipe

in.(mm)in.(mm)

Diameter of water pipe

in.(mm)

mm

Field drain pipe size


in.lbs(kg)Net weight


Design pressure

Water

R410A

Drawing

Standard attachment

Optional parts

Remark

Note: *1 Nominal heating conditions (PWFY conditions are indicated in the parentheses.)<Y/H2i Y/R2/H2i R2-series> <WY/WR2-series>

Circulating water Temp.: 70°F (21.1°C)Outdoor Temp. : 47°FDB/43°FWB (8.3°CDB/6.1°CWB)Pipe length : 25 ft (7.6 m)Pipe length : 25 ft (7.6 m)

Level difference : 0 ft (0 m)(Inlet water Temp.: 86°F (30°C) )(Water flow rate: 9.2 gpm (2.15 m3/h))


*2 Nominal cooling conditions (PWFY conditions are indicated in the parentheses.)<Y/H2i Y/R2/H2i R2-series> <WY/WR2-series>

Circulating water Temp.: 70°F (21.1°C)Outdoor Temp. : 95°FDB (35°CDB)Pipe length : 25 ft (7.6 m)Pipe length : 25 ft (7.6 m)



* Install the unit in an environment where the

* Due to continuing improvement, the above specifications may be subject to change without notice. wet bulb Temp. will not exceed 92°F (32°C) * The unit is not designed for outside installations.

* Please don't use the steel material for the water piping material. * The water circuit must use the closed circuit. * Please always make water circulate or add the brine to the circulation water when the ambient temperature becomes 32°F (0°C) or less. * Please always make water circulate or pull out the circulation water completely when not using it.

InletOutlet

Operation Volume

LiquidGas

Accessory

ExternalWiringDocument


Unit converter

36,200

50~95°F (10~35°C)

0.015

Φ5/8 (Φ15.88) BrazedΦ3/8 (Φ9.52) Brazed

PT3/4 (27.2) Screw


PT3/4 (27.2) Screw

NO

WKB94T461

0.072 - 0.065

50~100% of outdoor unit capacity

PUHY-P•T(S)KMU-A(-BS)PUHY-P•Y(S)KMU-A(-BS)

PUHY-HP•T(S)KMU-A(-BS)PURY-P•T(S)KMU-A(-BS)PURY-P•Y(S)KMU-A(-BS)

PQHY-P•T(S)HMU-APQHY-P•Y(S)HMU-A

PQRY-P•Y(S)HMU-APQRY-P•T(S)HMU-A

23~115°F (-5~46°C) R2-series

23~109°F (-5~43°C) H2i-seriesD.B 23~115°F (-5~46°C) Y-series

1.1~2.15

4.8~9.4

4.15145

18~36

290~568

1.00

Strainer, Heat insulation material, 2 × Connector sets , 2 × Washer, wire, Flow switch × 1set

Φ1-1/4 (Φ32)

PWFY-P36NMU-E-AU1-phase 208 - 230 V 60Hz

9,10010.6

29

11.7

800 (785 without legs) × 450 × 300

KE94C345

601

NONE

10,10039,900

-13~60°F (-25~15.5°C) H2i-seriesW.B -4~60°F (-20~15.5°C) Y-series

50~105°F (10~41°C)

0.0150.072 - 0.065

-4~90°F (-20~32°C) R2-series

31-1/2" (30-15/16" without legs) × 17-3/4” × 11-13/16”78 (35)

* Please do not use it as a drinking water. * Please do not use groundwater and well water.

m3/hG/hgpmL/min

MPapsi

MPapsi

kcal = kW x 860 BTU/h = kW x 3,412 cfm = m3/min x 35.31 G(us) = L × 0.2642 lbs = kg / 0.4536 psi = MPa×145.038


PURY-HP•T(S)KMU-A(-BS)PURY-HP•Y(S)KMU-A(-BS)


2. SPECIFICATIONS

Model Power source

kW*1Heating capacity(Nominal) kcal / h

Btu / hkWAW.B

*1*1

Power inputCurrent inputOutdoor temp.Temp. range of

heatingW.B-Inlet Water temp.kW*2Cooling capacity

(Nominal) kcal / hBtu / hkWAD.B

*2*2

Power inputCurrent inputOutdoor temp.Temp. range of cooling

D.B-Inlet Water temp.

Total capacityModel / Quantity

Connectableoutdoor unit

Sound pressure level (measured in anechoic room) dB<A>in.(mm)in.(mm)

Diameter of refrigerant pipe

in.(mm)in.(mm)

Diameter of water pipe

in.(mm)

mm

Field drain pipe size


in.lbs(kg)Net weight


Design pressure

Water

R410A

Drawing

Standard attachment

Optional parts

Remark

Note: *1 Nominal heating conditions (PWFY conditions are indicated in the parentheses.)<Y/H2i Y/R2/H2i R2-series> <WY/WR2-series>

Circulating water Temp.: 70°F (21.1°C)Outdoor Temp. : 47°FDB/43°FWB (8.3°CDB/6.1°CWB)Pipe length : 25 ft (7.6 m)Pipe length : 25 ft (7.6 m)



*2 Nominal cooling conditions (PWFY conditions are indicated in the parentheses.)<Y/H2i Y/R2/H2i R2-series> <WY/WR2-series>

Circulating water Temp.: 70°F (21.1°C)Outdoor Temp. : 95°FDB (35°CDB)Pipe length : 25 ft (7.6 m)Pipe length : 25 ft (7.6 m)



* Install the unit in an environment where the * Due to continuing improvement, the above specifications may be subject to change without notice. wet bulb Temp. will not exceed 92°F (32°C) * The unit is not designed for outside installations.

* Please don't use the steel material for the water piping material. * The water circuit must use the closed circuit. * Please always make water circulate or add the brine to the circulation water when the ambient temperature becomes 32°F (0°C) or less. * Please always make water circulate or pull out the circulation water completely when not using it.

InletOutlet

Operation Volume

LiquidGas

Accessory

ExternalWiringDocument


Unit converter

72,000

50~95°F (10~35°C)

0.015

Φ3/4 (Φ19.05) BrazedΦ3/8 (Φ9.52) Brazed

PT 1 ( 34 ) Screw


PT 1 ( 34 ) Screw

NO

WKB94T461

0.072 - 0.065

50~100% of outdoor unit capacity

23~115°F (-5~46°C) R2-series

23~109°F (-5~43°C) H2i-seriesD.B 23~115°F (-5~46°C) Y-series

1.8~4.30

7.9~18.9

4.15145

30~72

475~1136

1.00

Strainer , Connecter , Heat insulation material, 2 × Connector sets , Expansion joint , 2 × Washer, wire, Flow switch × 1set

Φ1-1/4 (Φ32)

PWFY-P72NMU-E-AU1-phase 208 - 230 V 60Hz

18,10021.1

29

23.4

800 (785 without legs) × 450 × 300

KE94C345

601

NONE

20,10079,800

-13~60°F (-25~15.5°C) H2i-seriesW.B -4~60°F (-20~15.5°C) Y-series

50~105°F (10~41°C)

0.0150.072 - 0.065

-4~90°F (-20~32°C) R2-series

31-1/2" (30-15/16" without legs) × 17-3/4” × 11-13/16”84 (38)

* Please do not use it as a drinking water. * Please do not use groundwater and well water.

m3/hG/hgpmL/min

MPapsi

MPapsi

kcal = kW x 860 BTU/h = kW x 3,412 cfm = m3/min x 35.31 G(us) = L × 0.2642 lbs = kg / 0.4536 psi = MPa×145.038


PUHY-P•T(S)KMU-A(-BS)PUHY-P•Y(S)KMU-A(-BS)

PUHY-HP•T(S)KMU-A(-BS)PURY-P•T(S)KMU-A(-BS)

PURY-HP•Y(S)KMU-A(-BS)PQHY-P•T(S)HMU-APQHY-P•Y(S)HMU-A

PQRY-P•Y(S)HMU-APQRY-P•T(S)HMU-A

PURY-P•Y(S)KMU-A(-BS)PURY-HP•T(S)KMU-A(-BS)


3. EXTERNAL DIMENSIONS

(11-13/16) (23-5/8)

Pip

ing

spac

e(r

ight

sid

e)

Top

view

Fig

. A

Ser

vice

spa

ce(f

ront

sid

e)

300

400(

15-3

/4)

600

Dra

in (

R1

scre

w)

Con

trol

box

Wat

er o

utle

t(R

C3/

4 sc

rew

)

ø27

(1-3

/32)

Kno

ckou

t hol

e<

Hol

e fo

r ex

tern

al w

iring

inpu

t>

ø27

(1-3

/32)

Kno

ckou

t hol

e<

Hol

e fo

r ex

tern

al w

iring

out

put>

ø27

(1-3

/32)

Kno

ckou

t hol

e<

Hol

e fo

r po

wer

sup

ply>

ø27

(1-3

/32)

Kno

ckou

t hol

e<

Hol

e fo

r co

ntro

l wiri

ng>

Ser

vice

pan

el

Top

view

Rig

ht s

ide

view

Fron

t vie

w

2X2-

ø14

(9/1

6) H

ole

Con

nect

ion

pipe

of o

utdo

or u

nit

(Liq

uid)

ø15

.88(

5/8)



ø9.

52(3

/8)



Con

nect

ion

pipe

of o

utdo

or u

nit

(Gas

)

Wat

er in

let

(R3/

4 sc

rew

)

Not

e 1.

Ens

ure

no w

ater

or

debr

is c

an e

nter

the

unit

thro

ugh

any

gaps

aro

und

wiri

ng o

r pi

ping

.

2. E

nsur

e ad

equa

te s

ervi

ce s

pace

is r

ight

aro

und

the

unit,

acc

ordi

ng to

Fig

A.

3

. Ple

ase

alw

ays

mak

e w

ater

circ

ulat

e or

add

the

brin

e to

the

circ

ulat

ion

wat

er

whe

n th

e am

bien

t tem

pera

ture

bec

omes

0de

gC(3

2°F

)or

less

.

4. T

he u

nit i

s no

t des

igne

d fo

r ou

tsid

e in

stal

latio

ns.

5

. Ins

tall

the

unit

in a

n en

viro

nmen

t whe

re th

e w

et b

ulb

Tem

p.

will

not

exc

eed

32de

gC(9

0°F

).

6. T

he w

ater

circ

uit m

ust u

se th

e cl

osed

circ

uit.

7. P

leas

e do

n't u

se th

e st

eel m

ater

ial f

or th

e w

ater

pip

ing

mat

eria

l.

8. C

onne

ct th

e st

rain

er w

hich

is p

ut a

s ac

cess

ory

to w

ater

inle

t pip

e.

<A

cces

sorie

s>• Y

-typ

e st

rain

er (

RC

3/4)

·····

······

·····

1pc.

• Hea

t Ins

ulat

ion

mat

eria

l ····

······

···· 1

pc.

• Con

nect

or s

et ··

······

······

······

······

···· 2

set

• Was

her

······

······

······

······

······

······

···· 2

pcs.

(4-1/32)

(3-15/16)

(3-5/32)(5-17/32)(2-3/8) (6-1/2)

(2-5/32)

(7-17/32)

102

(1-1

3/32

)

(1-1

3/16

)

(5-9

/32)

(4-1

/2)

(7-1

/4)

(2-3

/16)

525(

20-1

1/16

)

5535(1

-13/

32)

3591(3

-19/

32)

91(3

-19/

32)

134

480(18-29/32)46

60 140

100 191

80165

54

184

114

(Mou

ntin

g pi

tch)

(Mounting pitch)205(8-3/32)

800(31-1/2)300(11-13/16)

450(

17-2

3/32

)

500(

19-1

1/16

)

PWFY-P36NMU-E-BU


3. EXTERNAL DIMENSIONS

(23-5/8)(11-13/16)

300 600

Fig

. A

Ser

vice

spa

ce(f

ront

sid

e)

Top

view

400(

15-3

/4)

Pip

ing

spac

e(r

ight

sid

e)

Dra

in (

R1

scre

w)

ø9.

52(3

/8)



P72:

Use

the

Expa

nsio

n jo

int o

f acc

esso

ries

ø27

(1-3

/32)

Kno

ckou

t hol

e<

Hol

e fo

r co

ntro

l wiri

ng>

ø27

(1-3

/32)

Kno

ckou

t hol

e<

Hol

e fo

r po

wer

sup

ply>

Wat

er o

utle

t(R

C3/

4 sc

rew

)

Wat

er in

let

(R3/

4 sc

rew

)

P36

:ø15

.88(

5/8)

P

72:ø

19.0

5(3/

4) <

Bra

zed>

ø27

(1-3

/32)

Kno

ckou

t hol

e<

Hol

e fo

r ex

tern

al w

iring

inpu

t>

ø27

(1-3

/32)

Kno

ckou

t hol

e<

Hol

e fo

r ex

tern

al w

iring

out

put>

Con

nect

ion

pipe

of o

utdo

or u

nit

(Gas

)

Con

nect

ion

pipe

of o

utdo

or u

nit

(Liq

uid)

Fron

t vie

wR

ight

sid

e vi

ew

Con

trol

box

Ser

vice

pan

el

Top

view

2X2-

ø14

(9/1

6) H

ole

<A

cces

sorie

s>• Y

-typ

e st

rain

er (

RC

3/4)

·····

······

·····

1pc.

• Hea

t Ins

ulat

ion

mat

eria

l ····

······

···· 1

pc.

• Con

nect

or s

et ··

······

······

······

······

···· 2

set

• Was

her

······

······

······

······

······

······

···· 2

pcs.

• Exp

ansi

on jo

int(

P72

) ···

······

······

···· 2

pcs.

[F

rom

RC

3/4

to R

C1]

(3-15/16)

(8-1

/8)

(4-1

/2)

(2-3/8) (3-5/32)(5-17/32)

(5-9

/32)

(1-1

3/16

)(7-17/32)

(6-1/2)

(2-5/32)

(4-1/32)

(1-1

3/32

)

(2-3

/16)

525(

20-1

1/16

)

91(3

-19/

32)

91(3

-19/

32)

35(1

-13/

32)

5535

480(18-29/32) 102

206

134

114

100 191

4660 140 80

165

54

(Mou

ntin

g pi

tch)

450(

17-2

3/32

)

300(11-13/16)

(Mounting pitch)

205(8-3/32)

800(31-1/2)

500(

19-1

1/16

)



Not

e 1.

Ens

ure

no w

ater

or

debr

is c

an e

nter

the

unit

thro

ugh

any

gaps

aro

und

wiri

ng o

r pi

ping

.

2. E

nsur

e ad

equa

te s

ervi

ce s

pace

is r

ight

aro

und

the

unit,

acc

ordi

ng to

Fig

A.

3

. Ple

ase

alw

ays

mak

e w

ater

circ

ulat

e or

add

the

brin

e to

the

circ

ulat

ion

wat

er

whe

n th

e am

bien

t tem

pera

ture

bec

omes

0de

gC(3

2°F

)or

less

.

4. T

he u

nit i

s no

t des

igne

d fo

r ou

tsid

e in

stal

latio

ns.

5

. Ins

tall

the

unit

in a

n en

viro

nmen

t whe

re th

e w

et b

ulb

Tem

p.

will

not

exc

eed

32de

gC(9

0°F

).

6. T

he w

ater

circ

uit m

ust u

se th

e cl

osed

circ

uit.

7

. Ple

ase

don'

t use

the

stee

l mat

eria

l for

the

wat

er p

ipin

g m

ater

ial.

8

. Con

nect

the

stra

iner

whi

ch is

put

as

acce

ssor

y to

wat

er in

let p

ipe.

PWFY-P36,72NMU-E-AU


4. CENTER OF GRAVITY

17-23/32 (450) 11-13/16 (300)

31-1

/2 (8

00)

17/32 (13)19-11/16 (500)

20-11/16 (525)

8-3/32 (205)

1-7/8 (47)

in. (mm)

Model X Y ZPWFY-P36NMU-E-BU 10-23/32 (272) 13 (355) 4-11/16 (119)PWFY-P36NMU-E-AU 11-13/32 (289) 13-5/8 (346) 4-1/16 (103)PWFY-P72NMU-E-AU 10-29/32 (277) 13-11/16 (347) 3-29/32 (99)


5. ELECTRICAL WIRING DIAGRAMS

gray

21

gray

blac

k

To o

utdo

or u

nit/

B

C c

ontr

olle

rTo

MA

rem

ote

cont

rolle

r

Pow

er S

uppl

y~

208/

230V

60H

z

32

1

blue

red

yello

w/g

reen

blue

red

CN

4

63LS

CN

63H

S

1

13

2

2 3

TH

HS

12

CN

63LS

12

3

TH

8

21C

N40

3re

dT

H6

1 2C

N40

4bl

ack

31

CT

1

Mot

er

3~

CY

N

RS

4

MS

RS

3

(Com

pres

sor)

CN

3Abl

ue

U

t t t t t

red

yello

wT

H22

CN

405

IPM

WVU

blac

k

1

63H

S

7

21 3

12

CN

3

21

t

CN

401

CN

22

56

red

CN

52 1

TH

11

1 2

TH

13

21 whi

teCN

402

gree

n

red

56

RS1

blac

k 2

CN

52C

R1

LO

U

CN

AC

2

red 2

CN

5 1

12

red

blue

red

LEV2

WM M

LI24V

blue

+C

B3

Z2

1

UCT

1

LEV1

W

1

CN

2

63H

1

6 5

CN

AC

2

red

1

CX

2

L1

CN

506A

L3

L2G

6 5

N

CN

-E1

CN

631

DS

A

pink

E2

31

E1

4 3 2 1

CY

4

P

CY

3

31

L4

Z1

NI

CB

1 +

1

TB

2

CN

661

2

L2

3

X50

6

W

4

CN

4

blue

U

CN

52C

12

+

CX

3

INV

con

trol

circ

uit

PF

C

E3

1

L1

2

M

ZN

R01

ACL

CY

1C

Y2

CT

2

Noi

seF

ilter

red

Fan

mot

or

1 3

(DC

)

CX

5

CY

P

CIS

CX

6

12

7

V

yello

w

LED

3:Li

t whe

n po

wer

ed

INV

Boa

rd

Con

trol

Boa

rd

CB

2

(DC

)

CY

6

S

CX

4

R

CN

AC

1

M

CN

LVA

NO

Fan

mot

or

3

12

RS2

CY

5

P

CN

LVB

blue

CX

1

CX

7

CN

506B

CP

S +

RS

F01

AC

250V

6.3A

T

F63

1D

C70

0V4A

T Pow

erS

uppl

y ci

rcui

t

blue

red

TB

5M

1M

2S

(SH

IELD

)S

(SH

IELD

)T

B15

yello

wpu

rple

blac

kor

ange

gree

n

red

blac

kw

hite

gree

n

gray

52C

1 2C

N2M

blue

31 *4

*8

IN2

TB

141B

TB

142B

IN6

COM

+

OUT

5

TB

142C

OUT

7O

UT6

X515

X517

X516

IN8

IN5

IN7

TB

142A

X514

OUT

2

X512

X511

X513

OUT

1O

UT3 OUT

4

TB

141A

*5*6

*7

IN3

IN4

COM

+

LED

4:R

emot

e co

ntro

ller

w

hen

pow

ered

At f

acto

rysh

ipm

ent

At f

acto

rysh

ipm

ent

SWU1

10

SW1

5

ON

OFF

1

Uni

t add

ress

set

ting(

SW

U1,

SW

U2)

Con

nect

ion

No.

(SW

U3)

LED

1 D

ispl

ay s

ettin

g(S

W2)

Fun

ctio

n se

tting

(SW

1,S

W3,

SW

4)SW

P3

SW5

SWP1

SWU3

SWP2

SWU2

OFFON

110

SW4

OFFON

110

LED

1O

FFON

1

SW3

OFFON

110

SW2 IN

1

gray

CN

421

blac

k

31

CN

422

blue

IN1

IN2

31

CN

421

4-20

mA

4-20

mA

blac

k

31

CN

422

blue

22

22

AC

rea

ctor

Pre

ssur

esw

itch

Hig

h pr

essu

re s

witc

h(H

igh

pres

sure

pro

tect

ion

for

the

boos

ter

unit)

Dis

char

ge p

ress

ure

Low

pre

ssur

e

TB

2

LEV

1W

TB

5

LEV

2W

TB

15T

H11

OU

T1

IN1

IN3

CO

M+

IN4

IN5

IN6

IN7

TH

13

OU

T2

TH

22

OU

T3

TH

6

OU

T4

TH

8

CT

1,C

T2

AC

L

TH

HS

Mag

netic

rel

ay(m

ain

circ

uit)

Cur

rent

sen

sor(

AC

)

Exp

lana

tion

Fun

ctio

n

Fun

ctio

n

Fun

ctio

n

Fun

ctio

n

Term

inal

bloc

k

Line

arex

pans

ion

valv

eP

ower

sup

ply

BC

con

trol

ler/

outd

oor

unit

Out

door

uni

t/BC

con

trol

ler

Boo

ster

uni

t

MA

rem

ote

cont

rolle

rC

ompr

esso

r di

scha

rge

tem

p

Ope

ratio

n O

N/O

FF

Pum

p in

terlo

ck

Con

nect

ion

dem

and

Com

mon

Ope

ratio

n O

N/O

FF

Hot

wat

er/H

eatin

gH

eatin

g E

CO

Ant

i-fre

eze

Eva

pora

tor

outle

t tem

p

Def

rost

liqui

d pi

pe te

mp

Com

pres

sor

wat

er in

let t

emp

Err

or s

igna

l

wat

er o

utle

t tem

pIG

BT

tem

p

Pre

ssur

ese

nsor

Sym

bol

Sym

bol

Sym

bol

Sym

bol

Sym

bol

63H

1

*4 T

B14

1A(o

utpu

t)

*5 T

B14

2A(in

put)

*6 T

B14

2B(in

put)

*7 T

B14

2C(in

put)

*8. U

se c

oppe

r su

pply

wire

s.

63H

S63

LS

The

rmis

tor

52C

<S

ymbo

l exp

lana

tion>

<H

IGH

VO

LTA

GE

WA

RN

ING

> ·

Con

trol

box

hou

ses

high

-vol

tage

par

ts.

Bef

ore

insp

ectin

g th

e in

side

of t

he c

ontr

ol b

ox, t

urn

off t

he p

ower

, k

eep

the

unit

off f

or a

t lea

st 1

0 m

inut

es, a

nd c

onfir

m th

at th

e vo

ltage

CN

631

on C

ontr

ol B

oard

has

dro

pped

to D

C20

V o

r le

ss.

<C

AU

TIO

N F

OR

INS

TALL

ATIO

N>

· P

rior

to in

stal

latio

n, r

ead

the

Inst

alla

tion

Man

ual c

aref

ully

.*1

. Sin

gle-

dotte

d lin

es in

dica

te w

iring

not

sup

plie

d w

ith th

e un

it.*2

. Dot

-das

h lin

es in

dica

te th

e co

ntro

l box

bou

ndar

ies.

*3. F

asto

n te

rmin

als

have

a lo

ckin

g fu

nctio

n.

Mak

e su

re th

e te

rmin

als

are

secu

rely

lock

ed in

pla

ce a

fter

inse

rtio

n.

Pre

ss th

e ta

b on

the

term

inal

s to

rem

oved

them

.

° ° ° ° °

°

PWFY-P36NMU-E-BU


TH

8

TH

6

TH

23

blue

CN

2M2121

CN

402

gree

n

21C

N40

3re

d

1 2C

N40

4bl

ack

yello

wC

N40

5t

TH

221 2

S(S

HIE

LD)

2M

21

M1

To M

A r

emot

eco

ntro

ller

To o

utdo

or u

nit/

B

C c

ontr

olle

r/

Pow

er S

uppl

y~

208/

230V

60H

z

L2G

L1

Uni

t add

ress

set

ting(

SW

U1,

SW

U2)

Con

nect

ion

No.

(SW

U3)

LED

1

TB

15T

B5

ZN

R1

UD

SA

1

CN

11 3

SWU2

SWU1

SWP3

SWP2

SWP1

OFFON

110

SW4

OFFON

110

SW3

OFFON

110

SW1

OFFON

110

SW2

LED

4:R

emot

e co

ntro

ller

w

hen

pow

ered

At f

acto

rysh

ipm

ent

At f

acto

rysh

ipm

ent

5

CN

LVC

6 1

LEV1

Wb

12 23 34 4

X50

2

CN

507

31

M M

5 56

ON

OFF

1SW5

SWU3

LED

3:Li

t whe

n po

wer

ed

Con

trol

Boa

rd

CN

LVB

LEV1

Wa

TB

2

SV

1

*3

*8

DS

A B

oard

CN

3Tre

d13

T01

ZN

R01

31

CN

502

blac

k

12

CN

AC

red

U

F01

AC

250V

6.3A

T

LED

1 D

ispl

ay s

ettin

g(S

W2)

Fun

ctio

n se

tting

(SW

1,S

W3,

SW

4)

OUT

4O

UT3

OUT

2

X514

X513

X512

TB

141A

OUT

1

X511

333

33

22

22

111

11

CN

3A

CN

421

CN

421

4-20

mA

4-20

mA

CN

422

CN

422

blue

blac

kbl

ack

blue

blue

TB

142C

COM

+IN

6IN

8CO

M+

IN5

IN7

TB

142B

X516

X517

X515

OUT

6OUT

7O

UT5

TB

141B

red

red

gree

n

blue

yello

w/g

reen

TB

142A IN

2

IN1

IN1

IN3

IN4

*4

*5*6

*7

oran

geye

llow

blac

kpu

rple

TB

2

LEV

1Wa

SV

1

TB

5

LEV

1Wb

TB

15OU

T1

IN1

IN3

P36

CO

M+

IN4

P72

IN5

IN6

IN7

IN8

OU

T2

TH

22T

H23

TH

6OU

T4

TH

8

Exp

lana

tion

Fun

ctio

n

Fun

ctio

n

Fun

ctio

n

Fun

ctio

n

App

lianc

e

Term

inal

bloc

k

Line

arex

pans

ion

valv

e

Sol

enoi

d va

lve

Pow

er s

uppl

y

BC

con

trol

ler/

outd

oor

unit

For

ope

ning

/clo

sing

the

bypa

ss c

ircui

t

Out

door

uni

t/BC

con

trol

ler

BC

con

trol

ler/

outd

oor

unit

*3

MA

rem

ote

cont

rolle

r

Ope

ratio

n O

N/O

FF

Pum

p in

terlo

ck

Con

nect

ion

dem

and

*3 d

o no

t exi

st

Com

mon

Ope

ratio

n O

N/O

FF

*3 e

xist

Hea

ting

Hea

ting

EC

OA

nti-f

reez

eC

oolin

g

Def

rost

liqui

d pi

pe te

mp

gas

pipe

tem

pw

ater

inle

t tem

p

Err

or s

igna

l

wat

er o

utle

t tem

p

Sym

bol

Sym

bol

Sym

bol

Sym

bol

Mod

el n

ame

Sym

bol The

rmis

tor

<S

ymbo

l exp

lana

tion>

<C

AU

TIO

N F

OR

INS

TALL

ATIO

N>

· Prio

r to

inst

alla

tion,

rea

d th

e In

stal

latio

n M

anua

l car

eful

ly.

*1. S

ingl

e-do

tted

lines

indi

cate

wiri

ng n

ot s

uppl

ied

with

the

unit.

*2. D

ot-d

ash

lines

indi

cate

the

cont

rol b

ox b

ound

arie

s.*3

. Diff

eren

ce o

f app

lianc

e

*4 T

B14

1A(o

utpu

t)

*5 T

B14

2A(in

put)

*6 T

B14

2B(in

put)

*7 T

B14

2C(in

put)

*8. U

se c

oppe

r su

pply

wire

s.

° t° t° t°

5. ELECTRICAL WIRING DIAGRAMS

PWFY-P36,72NMU-E-AU


6. REFRIGERANT CIRCUIT DIAGRAMS

TH11

63H1

63HS63LS

TH13

TH22LEV1W LEV2W

COMP

Water outlet

TH6

TH8ST3

ST1ST2

CJ

Brazed

Brazed screw

screw

Water inlet

HexHex

- 31 -

§ Refrigerant Circuit

[1] Refrigerant Circuit Diagram

< PWFY-P36NMU-E-BU >

packaged

<PWFY-P36NMU-E-BU>

<PWFY-P36/72NMU-E-AU>

2

[2] Pump interlock

< PWFY-P36NMU-E-AU >

TH6

TH23

LEV1Wa

TH8

TH22

SV

CV1

ST2

ST3

Water inlet

Water outlet

Flow switch

Brazed Brazed screw

screw

Brazed

Brazed


TH6

TH23

LEV1Wa

TH8

TH22

LEV1Wb

SV

ST2

ST4

CV1

Water inlet

screw

Brazed

Brazed

Water outlet

Flow switch

Brazed Brazed screw

TH11

63H1

63HS63LS

TH13

TH22LEV1W LEV2W

COMP

Water outlet

TH6

TH8ST3

ST1ST2

CJ

Brazed

Brazed screw

screw

Water inlet

HexHex

- 31 -

§ Refrigerant Circuit

[1] Refrigerant Circuit Diagram

< PWFY-P36NMU-E-BU >

packaged

<PWFY-P36NMU-E-BU>

<PWFY-P36/72NMU-E-AU>

2

[2] Pump interlock


TH6

TH23

LEV1Wa

TH8

TH22

SV

CV1

ST2

ST3

Water inlet

Water outlet

Flow switch

Brazed Brazed screw

screw

Brazed

Brazed


TH6

TH23

LEV1Wa

TH8

TH22

LEV1Wb

SV

ST2

ST4

CV1

Water inlet

screw

Brazed

Brazed

Water outlet

Flow switch

Brazed Brazed screw


7. SOUND PRESSURE LEVELS

0

10

30

20

40

50

60

70

80

90

63 125 250 500 1k 2k 4k 8k

NC-40

NC-30

NC-20

NC-60

NC-50

NC-70

Oct

ave

band

sou

nd le

vel (

dB)

Sound pressure level of PWFY-P36NMU-E-BUMeasurement conditionPWFY-P36NMU-E-BU

60Hz

Octave band center frequencies <Hz>

Oct

ave

band

sou

nd le

vel (

dB)

Sound pressure level of PWFY-P36, 72NMU-E-AU

dB(A)29.0

8k12.0

4k15.0

2k14.5

1k22.5

50025.0

25033.0

12532.0

6342.0

60HzdB(A)44.0

8k27.0

4k27.5

2k32.0

1k39.0

50042.0

25037.0

12553.5

6341.0

Measurement conditionPWFY-P36, 72NMU-E-AU

Measurementlocation

3-1/4

ft. (1

m)

3-1/4 ft. (1m)

Measurementlocation

3-1/4

ft. (1

m)

3-1/4 ft. (1m)

Octave band center frequencies <Hz>

Approximate minimumaudible limit oncontinuous noise

0

10

30

20

40

50

60

70

80

90

63 125 250 500 1k 2k 4k 8k

NC-40

NC-30

NC-20

NC-60

NC-50

NC-70

Approximate minimumaudible limit oncontinuous noise

7-1. Sound Pressure Levels and NC Curves


8. VIBRATION LEVELS

PWFY-P36NMU-E-BU

PWFY-P36NMU-E-BUModel Vibration Levels[dBA]

34

3-15/16 in (100mm) 7-7/8 in (200mm)

Measurementlocation

Servicepanel

Concrete

VIBRATION LEVELS


9. CAPACITY TABLES9-1. Correction by TemperatureY-Series + PWFY-P36/72NMU-E-AU

PUHY- P72, 96TKMU-A(-BS) P72, 96YKMU-A(-BS)

Heating

0.20.30.40.50.60.70.80.91.01.11.21.3

Outdoor temp. [°FWB]Outdoor temp. [°CWB]

Rat

io o

f hea

ting

capa

city 50°F/10°C

68°F/20°C86°F/30°C95°F/35°C105°F/41°C

HEX unit inlet-water temp.




-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2


Rat

io o

f out

door

uni

t inp

ut

105°F/41°C95°F/35°C86°F/30°C

68°F/20°C

50°F/10°C

-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

Cooling

0.40.50.60.70.80.91.01.11.21.31.4

Outdoor temp. [°FDB]Outdoor temp. [°CDB]

Rat

io o

f coo

ling

capa

city

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C

20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

30 40 50 60 70 80-1 4 10 16 21 27

9032

10038

11043

12049

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3


Rat

io o

f out

door

uni

t inp

ut

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C

20-7


PUHY- P120, 144TKMU-A(-BS) P120, 144YKMU-A(-BS)

Heating

0.20.30.40.50.60.70.80.91.01.11.21.3


Rat

io o

f hea

ting

capa

city

50°F/10°C68°F/20°C86°F/30°C95°F/35°C105°F/41°C

-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2


Rat

io o

f out

door

uni

t inp

ut

105°F/41°C

95°F/35°C86°F/30°C

68°F/20°C

50°F/10°C

-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

Cooling

0.40.50.60.70.80.91.01.11.21.31.4


Rat

io o

f coo

ling

capa

city

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C


Rat

io o

f out

door

uni

t inp

ut

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C





20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

9. CAPACITY TABLES


PUHY- P168, 192, 216, 240TSKMU-A(-BS) P168, 192, 216, 240YSKMU-A(-BS)

Heating

0.20.30.40.50.60.70.80.91.01.11.21.3


Rat

io o

f hea

ting

capa

city

50°F/10°C68°F/20°C86°F/30°C95°F/35°C105°F/41°C





-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2


Rat

io o

f out

door

uni

t inp

ut

105°F/41°C95°F/35°C86°F/30°C

68°F/20°C

50°F/10°C

-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

Cooling

0.40.50.60.70.80.91.01.11.21.31.4


Rat

io o

f coo

ling

capa

city


Rat

io o

f out

door

uni

t inp

ut

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C

Outdoor temp. [°FDB]

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C

20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

9. CAPACITY TABLES


PUHY- P264, 288TSKMU-A(-BS) P264, 288YSKMU-A(-BS)

Heating

0.20.30.40.50.60.70.80.91.01.11.21.3


Rat

io o

f hea

ting

capa

city 50°F/10°C

68°F/20°C86°F/30°C95°F/35°C105°F/41°C




-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2


Rat

io o

f out

door

uni

t inp

ut

105°F/41°C

95°F/35°C86°F/30°C

68°F/20°C

50°F/10°C

-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

Cooling

0.40.50.60.70.80.91.01.11.21.31.4


Rat

io o

f coo

ling

capa

city

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C


Rat

io o

f out

door

uni

t inp

ut

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C


20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

9. CAPACITY TABLES


PUHY- P312, 336, 360TSKMU-A(-BS) P312, 336, 360YSKMU-A(-BS)

Heating

0.20.30.40.50.60.70.80.91.01.11.21.3


Rat

io o

f hea

ting

capa

city

50°F/10°C68°F/20°C86°F/30°C95°F/35°C105°F/41°C


-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2


Rat

io o

f out

door

uni

t inp

ut

105°F/41°C95°F/35°C86°F/30°C

68°F/20°C

50°F/10°C

-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

Cooling




0.40.50.60.70.80.91.01.11.21.31.4


Rat

io o

f coo

ling

capa

city

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C


Rat

io o

f out

door

uni

t inp

ut

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C


20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

9. CAPACITY TABLES


9. CAPACITY TABLESR2-Series + PWFY-P36/72NMU-E-AU

PURY- P72, 96TKMU-A(-BS) P72, 96YKMU-A(-BS)

Heating

0.40.50.60.70.80.91.01.11.21.3


Rat

io o

f hea

ting

capa

city 50°F/10°C

68°F/20°C86°F/30°C95°F/35°C

105°F/41°C




-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

6518

7524

8529

-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

6518

7524

8529

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2


Rat

io o

f out

door

uni

t inp

ut

105°F/41°C95°F/35°C86°F/30°C

68°F/20°C

50°F/10°C

Cooling


Rat

io o

f coo

ling

capa

city


Rat

io o

f out

door

uni

t inp

ut

20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

30 40 50 60 70 80-1 4 10 16 21 27

9032

10038

11043

12049

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C

20-7

0.40.50.60.70.80.91.01.11.21.31.4

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C



9. CAPACITY TABLES


Heating

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2


Rat

io o

f hea

ting

capa

city

50°F/10°C68°F/20°C86°F/30°C95°F/35°C

105°F/41°C



-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

6518

7524

8529

-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

6518

7524

8529

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2


Rat

io o

f out

door

uni

t inp

ut

105°F/41°C

95°F/35°C86°F/30°C

68°F/20°C

50°F/10°C

Cooling


0.40.50.60.70.80.91.01.11.21.31.4


Rat

io o

f coo

ling

capa

city

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C

Rat

io o

f out

door

uni

t inp

ut

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C



20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3


9. CAPACITY TABLES

PURY- P168, 192, 216, 240TSKMU-A(-BS) P168, 192, 216, 240YSKMU-A(-BS)

Heating

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2


Rat

io o

f hea

ting

capa

city 50°F/10°C

68°F/20°C86°F/30°C95°F/35°C105°F/41°C




-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

6518

7524

8529

-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

6518

7524

8529

0.4

0.5

0.6

0.7

0.8

0.9

1.0


Rat

io o

f out

dor u

nit i

nput

105°F/41°C95°F/35°C86°F/30°C68°F/20°C

50°F/10°C

Cooling




0.40.50.60.70.80.91.01.11.21.31.4

Outdoor temp. [°CDB]

Rat

io o

f coo

ling

capa

city

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C

Rat

io o

f out

door

uni

t inp

ut

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C

20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3


9. CAPACITY TABLES

PURY- P264, 288TSKMU-A(-BS) P264, 288YSKMU-A(-BS)

Heating


Rat

io o

f hea

ting

capa

city



Rat

io o

f out

door

uni

t inp

ut

Cooling


Rat

io o

f coo

ling

capa

city


Rat

io o

f out

door

uni

t inp

ut

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C

0.40.50.60.70.80.91.01.11.21.3

50°F/10°C68°F/20°C86°F/30°C95°F/35°C105°F/41°C



-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

6518

7524

8529

-5 5 15 25 35 45 55-20 -15 -9 -4 2 7 13

6518

7524

8529

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

105°F/41°C

95°F/35°C86°F/30°C68°F/20°C

50°F/10°C

0.40.50.60.70.80.91.01.11.21.31.4

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C


20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

12049

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3


9. CAPACITY TABLES

H2I Y-Series + PWFY-P36/72NMU-E-AU

PUHY- HP72, 96, 144, 192T(S)JMU-A(-BS)

Heating

0.20.30.40.50.60.70.80.91.01.11.21.3


Rat

io o

f hea

ting

capa

city 50°F/10°C

68°F/20°C86°F/30°C

104°F/40°C

50°F/10°C

68°F/20°C

86°F/30°C

104°F/40°C


-15 -5 15 25 35-26

-10-23 -21

0-18

5-15

10-12 -9

20-7 -4

30-1 2

404

457

5010

5513

6016

-26 -23 -21 -18 -15 -12 -9 -7 -4 -1 2 4 7 10 13 16-15 -5 15 25 35-10 0 5 10 20 30 40 45 50 55 60

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8


Rat

io o

f out

door

uni

t inp

ut

Cooling




0.5

0.60.70.8

0.91.01.1

1.21.31.4


Rat

io o

f coo

ling

capa

city

95°F/35°C86°F/30°C77°F/25°C

68°F/20°C

59°F/15°C

50°F/10°C


Rat

io o

f out

door

uni

t inp

ut

95°F/35°C86°F/30°C77°F/25°C68°F/20°C59°F/15°C50°F/10°C


20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

20 30 40 50 60 70 80-7 -1 4 10 16 21 27

9032

10038

11043

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3


9. CAPACITY TABLES

WR2-Series + PWFY-P36/72NMU-E-AU

PQRY-

Heating

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2Ra

tio o

f HEX

uni

t hea

tling

capa

city

0.50.60.70.80.91.01.11.21.31.41.5

Ratio

of H

eat s

ourc

e un

it in

put

Cooling

0.5

0.6

0.7

0.8

0.9

1.0

1.1

Ratio

of H

EX u

nit c

oolin

g ca

pacit

y

0.50.60.70.80.91.01.11.21.31.41.5

Ratio

of H

eat s

ourc

e un

it in

put

P72, 96, 120, 144, 168, 192, 216, 240T(S)HMU-A/Y(S)HMU-A

50°F/10°C68°F/20°C86°F/30°C95°F/35°C105°F/41°C

105°F/41°C95°F/35°C86°F/30°C68°F/20°C50°F/10°C

95°F/35°C86°F/30°C77°F/25°C73°F/23°C

68°F/20°C

59°F/15°C

50°F/10°C

95°F/35°C86°F/30°C

77°F/25°C68°F/20°C73°F/23°C

50°F/10°C

Heat source unit (WR2) inlet-water temp. [°F]Heat source unit (WR2) inlet-water temp. [°C]

50 55 60 65 70 75 8010 13 16 18 21 24 27

9032

8529

9535

10038

10541

11043

50 55 60 65 70 75 8010 13 16 18 21 24 27

9032

8529

9535

10038

10541

11043

50 55 60 65 70 75 8010 13 16 18 21 24 27

9032

8529

9535

10038

10541

11043

50 55 60 65 70 75 8010 13 16 18 21 24 27

9032

8529

9535

10038

10541

11043




HEX unitinlet-watertemp. [°F /°C]





9. CAPACITY TABLES

WY-Series + PWFY-P36/72NMU-E-AU

PQHY-

Heating

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2Ra

tio o

f HEX

uni

t hea

tling

capa

city

0.50.60.70.80.91.01.11.21.31.41.5

Ratio

of H

eat s

ourc

e un

it in

put

Cooling

0.5

0.6

0.7

0.8

0.9

1.0

1.1

Ratio

of H

EX u

nit c

oolin

g ca

pacit

y

0.50.60.70.80.91.01.11.21.31.41.5

Ratio

of H

eat s

ourc

e un

it in

put

P72, 96, 120, 144, 168, 192, 216, 240T(S)HMU-A/Y(S)HMU-A

50°F/10°C68°F/20°C86°F/30°C95°F/35°C105°F/41°C

105°F/41°C95°F/35°C86°F/30°C68°F/20°C50°F/10°C

95°F/35°C86°F/30°C77°F/25°C73°F/23°C

68°F/20°C

59°F/15°C

50°F/10°C

95°F/35°C86°F/30°C

77°F/25°C68°F/20°C73°F/23°C

50°F/10°C

Heat source unit (WY) inlet-water temp. [°F]Heat source unit (WY) inlet-water temp. [°C]

50 55 60 65 70 75 8010 13 16 18 21 24 27

9032

8529

9535

10038

10541

11043

50 55 60 65 70 75 8010 13 16 18 21 24 27

9032

8529

9535

10038

10541

11043

50 55 60 65 70 75 8010 13 16 18 21 24 27

9032

8529

9535

10038

10541

11043

50 55 60 65 70 75 8010 13 16 18 21 24 27

9032

8529

9535

10038

10541

11043









9. CAPACITY TABLES

R2-Series + PWFY-P36NMU-E-BU


0.5

0.6

0.7

0.8

0.9

1.0

1.1


Rat

io o

f hea

ting

capa

city

86°F/30°C

68°F/20°C

50°F/10°C

104°F/40°CBooster unit inlet-water temp.

Booster unit inlet-water temp.


122°F/50°C140°F/60°C149°F/65°C

-5 5 15 25 35 45 55 65 75 85-20 -15 -9 -4 2 7 13 18 24 29

0.5

0.4

0.3

0.2

0.6

0.7

0.8

0.9

1.0

1.1


Rat

io o

f boo

ster

uni

t inp

ut

86°F/30°C

68°F/20°C50°F/10°C

149°F/65°C

140°F/60°C

122°F/50°C

104°F/40°C

-5 5 15 25 35 45 55 65 75 85-20 -15 -9 -4 2 7 13 18 24 29

0.6

0.7

0.8

0.9

1.0

1.1


Rat

io o

f out

door

uni

t inp

ut

86°F/30°C

68°F/20°C

50°F/10°C

104°F/40°C

122°F/50°C

140°F/60°C

149°F/65°C

-5 5 15 25 35 45 55 65 75 85-20 -15 -9 -4 2 7 13 18 24 29


9. CAPACITY TABLES



0.5

0.6

0.7

0.8

0.9

1.0

1.1


Rat

io o

f hea

ting

capa

city

86°F/30°C

68°F/20°C

50°F/10°C

104°F/40°C122°F/50°C140°F/60°C149°F/65°C

-5 5 15 25 35 45 55 65 75 85-20 -15 -9 -4 2 7 13 18 24 29

0.5

0.4

0.3

0.2

0.6

0.7

0.8

0.9

1.0

1.1


Rat

io o

f boo

ster

uni

t inp

ut

86°F/30°C

68°F/20°C50°F/10°C

149°F/65°C

140°F/60°C

122°F/50°C

104°F/40°C

-5 5 15 25 35 45 55 65 75 85-20 -15 -9 -4 2 7 13 18 24 29

0.5

0.6

0.7

0.8

0.9

1.0

1.1


Rat

io o

f out

door

uni

t inp

ut

86°F/30°C

68°F/20°C

50°F/10°C

104°F/40°C122°F/50°C

140°F/60°C

149°F/65°C

-5 5 15 25 35 45 55 65 75 85-20 -15 -9 -4 2 7 13 18 24 29






9. CAPACITY TABLES

PURY- P168, 192, 216, 240TSKMU-A(-BS) P168, 192, 216, 240YSKMU-A(-BS)

0.5

0.6

0.7

0.8

0.9

1.0

1.1


Rat

io o

f hea

ting

capa

city

86°F/30°C

68°F/20°C

50°F/10°C

104°F/40°C122°F/50°C140°F/60°C149°F/65°C

-5 5 15 25 35 45 55 65 75 85-20 -15 -9 -4 2 7 13 18 24 29

0.5

0.4

0.3

0.2

0.6

0.7

0.8

0.9

1.0

1.1


Rat

io o

f boo

ster

uni

t inp

ut

86°F/30°C

68°F/20°C50°F/10°C

149°F/65°C

140°F/60°C

122°F/50°C

104°F/40°C

-5 5 15 25 35 45 55 65 75 85-20 -15 -9 -4 2 7 13 18 24 29

0.5

0.6

0.7

0.8

0.9

1.0

1.1


Rat

io o

f out

door

uni

t inp

ut

86°F/30°C

68°F/20°C

50°F/10°C

104°F/40°C122°F/50°C

140°F/60°C

149°F/65°C

-5 5 15 25 35 45 55 65 75 85-20 -15 -9 -4 2 7 13 18 24 29





9. CAPACITY TABLES


PURY- P264, 288TSKMU-A(-BS) P264, 288YSKMU-A(-BS)

0.5

0.6

0.7

0.8

0.9

1.0

1.1


Rat

io o

f hea

ting

capa

city

86°F/30°C

68°F/20°C

50°F/10°C

104°F/40°C122°F/50°C140°F/60°C149°F/65°C

-5 5 15 25 35 45 55 65 75 85-20 -15 -9 -4 2 7 13 18 24 29

0.5

0.4

0.3

0.2

0.6

0.7

0.8

0.9

1.0

1.1


Rat

io o

f boo

ster

uni

t inp

ut

86°F/30°C

68°F/20°C50°F/10°C

149°F/65°C

140°F/60°C

122°F/50°C

104°F/40°C

-5 5 15 25 35 45 55 65 75 85-20 -15 -9 -4 2 7 13 18 24 29

0.6

1.1


Rat

io o

f out

door

uni

t inp

ut

86°F/30°C

68°F/20°C

50°F/10°C

104°F/40°C122°F/50°C

140°F/60°C

149°F/65°C

-5 5 15 25 35 45 55 65 75 85-20 -15 -9 -4 2 7 13 18 24 29




0.7

0.8

0.9

1.0

1.1


WR2-Series + PWFY-P36NMU-E-BU

9. CAPACITY TABLES

PQRY- P72, 96, 120, 144, 168, 192, 216, 240T(S)HMU-A/Y(S)HMU-A

0.7

0.8

0.9

1.0

1.1

1.2


Rat

io o

f Boo

ster

uni

t cap

acity

122°F/50°C

149°F/65°C

50°F/10°C

50°F/10°C

105°F/41°C140°F/60°C86°F/30°C68°F/20°C

50 55 60 65 70 75 80 85 90 9510 13 16 18 21 24 27 29 32 35

10038

10541

11043

50 55 60 65 70 75 80 85 90 9510 13 16 18 21 24 27 29 32 35

10038

10541

11043

50 55 60 65 70 75 80 85 90 9510 13 16 18 21 24 27 29 32 35

10038

10541

11043

0.2

0.0

0.4

0.6

0.8

1.0

1.2

1.4


Rat

io o

f Boo

ster

uni

t inp

ut

105°F/41°C

86°F/30°C

68°F/20°C

149°F/65°C

149°F/65°C140°F/60°C

122°F/50°C

50°F/10°C

86°F/30°C68°F/20°C149°F/65°C

122°F/50°C105°F/41°C140°F/60°C

0.7

0.8

0.9

1.0

1.1

1.2


Rat

io o

f Hea

t sou

rce

unit

inpu

tBooster unit inlet-water temp. [°F/°C]

Booster unit inlet-water temp. [°F/°C]

149°F/65°C

Booster unit inlet-water temp. [°F/°C]


9. CAPACITY TABLES9-2. Correction by Water VolumePWFY-P36NMU-E-BU

- 31 -

0.800.85

0.90

0.95

1.00

1.05

1.10

1.201.15

0.5 1.0 1.5 2.0Booster unit water-volume [m3/h]

Ratio

of B

oost

er u

nit h

eatin

g ca

pacit

y

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.201.15


Rat

io o

f Boo

ster

uni

t inp

ut

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.201.15


Rat

io o

f Hea

t sou

rce

unit

inpu

t

0.800.85

0.90

0.95

1.00

1.05

1.10

1.201.15

98765432 10Booster unit water-volume [gpm]

Ratio

of B

oost

er u

nit h

eatin

g ca

pacit

y

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.201.15

Rat

io o

f Boo

ster

uni

t inp

ut


0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.201.15

Rat

io o

f Hea

t sou

rce

unit

inpu

t


(2) Correction by water volume(2)-1 PWFY-P36NMU-E-BU

MEE12K014.indd 31 2012/12/25 13:53:47


9. CAPACITY TABLES

PWFY-P36NMU-E-BU

- 31 -

0.800.85

0.90

0.95

1.00

1.05

1.10

1.201.15


Ratio

of B

oost

er u

nit h

eatin

g ca

pacit

y

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.201.15


Rat

io o

f Boo

ster

uni

t inp

ut

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.201.15


Rat

io o

f Hea

t sou

rce

unit

inpu

t

0.800.85

0.90

0.95

1.00

1.05

1.10

1.201.15


Ratio

of B

oost

er u

nit h

eatin

g ca

pacit

y

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.201.15

Rat

io o

f Boo

ster

uni

t inp

ut


0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.201.15

Rat

io o

f Hea

t sou

rce

unit

inpu

t


(2) Correction by water volume(2)-1 PWFY-P36NMU-E-BU

MEE12K014.indd 31 2012/12/25 13:53:47


9. CAPACITY TABLES

PWFY-P72NMU-E-AU

- 33 -

(2)-3 PWFY-P72NMU-E-AU

Heating

Cooling

Heating

Cooling

1.5 2.0 2.5 3.0 3.5 4.0 4.50.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

HEX unit water-volume [m3/h]

Rat

io o

f HE

X u

nit c

oolin

g ca

paci

ty

1.5 2.0 2.5 3.0 3.5 4.0 4.50.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15


Rat

io o

f Hea

t sou

rce

unit

inpu

t

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.5 2.0 2.5 3.0 3.5 4.0 4.5HEX unit water-volume [m3/h]

Rat

io o

f HE

X u

nit h

eatin

g ca

paci

ty

1.5 2.0 2.5 3.0 3.5 4.0 4.50.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15


Rat

io o

f Hea

t sou

rce

unit

inpu

t

HEX unit water-volume [gpm]

Rat

io o

f HE

X u

nit c

oolin

g ca

paci

ty

7 10 15 200.70

0.80

0.90

1.00

1.10


Rat

io o

f Hea

t sou

rce

unit

inpu

t

7 10 15 200.70

0.80

0.90

1.00

1.10


Rat

io o

f HE

X u

nit h

eatin

g ca

paci

ty

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.20

1.15

7 10 15 20HEX unit water-volume [gpm]

Rat

io o

f Hea

t sou

rce

unit

inpu

t

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.20

1.15

7 10 15 20

MEE12K014.indd 33 2012/12/25 13:53:47


9. CAPACITY TABLES9-3. Water Pressure Drop

- 34 -

PWFY-P36NMU-E-BU

0

10

20

30

40

50

25.115.0

Booster unit inlet-water volume [m3/h]Boo

ster

uni

t wat

er-p

ress

ure

drop

[kP

a]

PWFY-P36NMU-E-BU (with strainer)

Water pressure drop of strainer

018642

Booster unit inlet-water volume [gpm]Boo

ster

uni

t wat

er-p

ress

ure

drop

[psi

]

PWFY-P36NMU-E-BU (with strainer)


0

2

4

6

8

1

3

5

7

910

MEE12K014.indd 34 2012/12/25 13:53:48

PWFY-P36NMU-E-BU


9. CAPACITY TABLES

PWFY-P36/72NMU-E-AU

PWFY-P36, P72NMU-E-AU

0

10

20

30

40

50

25.11

HEX unit inlet-water volume [m3/h]

HE

X u

nit w

ater

-pre

ssur

e dr

op [k

Pa]

0

10203040

50607080

90100


HE

X u

nit w

ater

-pre

ssur

e dr

op [k

Pa]

PWFY-P72NMU-E-AU (with strainer)




0

2

4

6

8

1

3

5

7

910

01864

HEX unit inlet-water volume [gpm]

HE

X u

nit w

ater

-pre

ssur

e dr

op [p

si]

0

2468

10121416

1820


HE

X u

nit w

ater

-pre

ssur

e dr

op [p

si]





1.5 2 2.5 3 3.5 4 4.5

51017 20


9. CAPACITY TABLES

PWFY-P36/72NMU-E-AU

PWFY-P36, P72NMU-E-AU

0

10

20

30

40

50

25.11


HE

X u

nit w

ater

-pre

ssur

e dr

op [k

Pa]

0

10203040

50607080

90100


HE

X u

nit w

ater

-pre

ssur

e dr

op [k

Pa]





0

2

4

6

8

1

3

5

7

910

01864


HE

X u

nit w

ater

-pre

ssur

e dr

op [p

si]

0

2468

10121416

1820


HE

X u

nit w

ater

-pre

ssur

e dr

op [p

si]





1.5 2 2.5 3 3.5 4 4.5

51017 20


9. CAPACITY TABLESWater pressure drop of strainer only (accessory for PWFY-P36NMU-E-BU and PWFY-P36/72NMU-E-AU)

- 36 -

9-3-3. Water pressure drop of strainer only (accessory for PWFY-P36NMU-E-BU and PWFY-P36/72NMU-E-AU)

0

10

20

30

40

Booster/HEX unit inlet-water volume [m3/h]

Wat

er-p

ress

ure

drop

[kP

a]

0

1

2

4

3

5

Booster/HEX unit inlet-water volume [gpm]

Wat

er-p

ress

ure

drop

[psi

]

5 10 15 20

1 1.5 2 2.5 3 3.5 4 4.5


9. CAPACITY TABLES9-4. Cooling Operation in Cold Climates

9/11

(4) Brine When (a) PWFY-AU is used for cooling purpose, or (b) PWFY-AU is installed in the temperature condition below freezing temperature, Brine is required to add.

-30-25-20-15-10-505

0 10 20 30 40 50 60 70Brine concentration [wt%]

Free

zing t

empe

rature [℃

]

00.2

0.40.60.8

11.2

0 10 20 30 40 50 60 70 80 90 100Brine concentration [wt%]

Rat

io o

f cap

acity

[-]

ethylene glycolpropylene glycol

When using the PWFY unit for cooling water applications, especially with air cooled equipment, it is recommended to include glycol for freeze protection in the water circulating through the unit. Refer to glycol manufacturer data to determine level of concentration required; concentration for -4o F water is highly recommended.

The PWFY is equipped with a brazed plate heat exchanger and potential loss or abrupt loss of flow due to pump failure while PWFY is fully loaded during cooling operation poses a potential freezing risk.

During ambient temperatures below 32o F if the PWFY unit is not being utilized, especially when connected on an R2-series air cooled system that running in heating main mode, it is important to also maintain water circulation through the HEX unit even when not thermally active.

Alternately, if the PWFY is not being used during winter months, glycol has not been added to the water, and continuous pump circulation is not provided, the unit should be shut down and water drained from the heat exchanger as a preventative measure.

Brine

- 57 -

(9) BrineWhen (a) PWFY-AU is used for cooling purpose, or (b) PWFY-AU is installed in the temperature condition below freezing temperature, Brine is required to add.Set Dip SW 1-10 (on ATW unit) to ON if brine is added.

Brine concentration (wt%)

Free

zing

tem

pera

ture

(ºC

[ºF]

)

0-30[-22]

-25[-13]

-20[-4]

-15[5]

-10[14]

-5[23]

0[32]

5[41]

10 20 30 40 50 60 70


Rat

io o

f cap

acity

(-)

00

0.2

0.4

0.6

0.8

1

1.2

10 3020 40 50 60 70 80 90 100

ethylene glycol

propylene glycol


Rat

io o

f pre

ssur

e dr

op (-

)

0.5

1

1.5

2

2.5

3

3.5

4

0 10 3020 40 50 60 70 80 90 100

ethylene glycol

propylene glycol

MEE12K014.indd 57 2012/12/25 13:54:12


10. OPTIONAL PARTS

Optional Parts Line Up for the Indoor Unit

- 12 -

4. Accessories(1) PWFY

(A) Strainer (B) Heat insulation material (C) Connecter sets × 2 (D) Washer × 2

(E) Expansion joint × 2 (F) Wire (G) Flow switch

*1

*1. PWFY-P72NMU-E-AU only

(A) Install the strainer at the water pipe inlet.(B) This insulation is for exclusive use with the strainer. Wrap the strainer with the insulation after water pipes are

installed.(C) These are analog input connectors. Cut the wire before using.(D) Fix power source wiring to terminal bed box by using buffer bushing for tensile force. (Conduit or the like.)

Connect transmission wiring to transmission terminal bed through the knockout hole of terminal bed box using ordinary bushing.

(E) Supplied only with the PWFY-P72NMU-E-AU. Install them at the strainer inlet. Refer to P.52 for details.(F) To perform test run before the pump interlock circuit is completed, short circuit the terminal block TB142A (IN1), and then perform test run.(G) When installing the unit, be sure to install the supplied flow switch on the water outlet side of the unit and

connect the wire to IN1 of TB142A on the unit.

(2) CMB-P105, 106, 108, 1010, 1013, 1016NU-G

Item QtyDrain hose 1Tie band 1Hose band 1Reducer (large & small) Same number as

branch holesRefrigerant connection pipe 3

MEE12K014.indd 12 2012/12/25 13:53:36

(A) Install the strainer at the water pipe inlet.(B) This insulation is for exclusive use with the strainer. Wrap the strainer with the insulation after water pipes are installed.(C) These are analog input connectors. Cut the wire before using.(D) Fix power source wiring to terminal bed box by using buffer bushing for tensile force. (Conduit or the like.) Connect transmission wiring to transmission terminal bed through the knockout hole of terminal bed box using ordinary bushing.(E) When installing the unit, be sure to install the supplied flow switch on the water outlet side of the unit and connect the wire to IN1 of TB142A on the unit. (F) To perform test run before the pump interlock circuit is completed, short circuit the terminal block TB142A (IN1), and then perform test run.(G) When installing the unit, be sure to install the supplied flow switch on the water outlet side of the unit and connect the wire to IN1 of TB142A on the unit.


11-1-2. Electrical characteristics of Indoor unit• Provide a switch with at least 3 mm (1/8 in) contact separation in each pole when installing the air conditioner.

ModelUnit

Hz Volts Voltage range RLA(A) MCA(A) Max.

Fuse(A)

PWFY-P36NMU-E-AU PWFY-P72NMU-E-AU 60Hz 208/230V 188 to 253V 0.072/0.065 0.09 15

ModelUnit Compressor

Hz Volts Voltage range RLA(A) MCA(A) Max.

Fuse(A) SC(A)

PWFY-P36NMU-E-BU 60Hz 208/230V 188 to 253V 12.30/11.12 25 25 1.25

Symbols: MCA: Min. Circuit Amps (=1.25 x FLA)

11. SYSTEM DESIGN

11-1. Electrical Work11-1-1. General Cautions

Warning:Electrical work should be performed by qualified electrical engineers in accordance with “Engineering Standards For Electrical Installation” and the supplied installation manuals. Special circuits should also be used. If the power circuit lacks capacity or has an installation failure, it may cause a risk of electric shock or fire.1. Follow ordinances of your government organization for technical standard related to electrical equipment, wiring regulations,

and guidances of each electrical power company.2. Power should be taken from the special branch circuit.3. Install a ground breaker to the power.4. Install the unit so that the control circuit cables (remote controller, transmission cables, or external input/output line) is not

in direct contact with the power cable outside the unit.5. Ensure that there is no slack on all wire connections.6. Vermin may have access to and damage the power, remote controller, and transmission cables. To prevent damage, insert

cables into metal piping. 7. Do not connect the power cables to the transmission cable leads. 8. Connect control cables to the indoor unit, remote controller, and the outdoor unit.9. Ground the unit.10. Select control cables following instructions.

Caution:Be sure to put the unit to the ground on the outdoor unit side. Do not connect the ground cable to any gas pipe, water pipe, lightening rod, or telephone cable. Improper grounding may cause electric shock.


11. SYSTEM DESIGN

11-2. M-NET Control11-2-1. Transmission Cable Specifications

*1 Connected with simple remote controller. CVVS, MVVS: PVC insulated PVC jacketed shielded control cable CVV, MVV : PVC insulated PVC sheathed control cable CPEVS : PE insulated PVC jacketed shielded communication cable

PWFY-P36NMU-E-BUTransmission Cables MA Remote Controller Cables External Input External Output

Type of Cable

Shielding wire (2-core)CVVS, CPEVS or MVVS

Sheathed 2-core cable (shielded) CVVS

Sheathed multi-core cable (shielded) CVVS or MVVS

Sheathed multi-core cable (unshielded) CVV or MVV

Cable Diameter

More than 1.25 mm2 [AWG16]

1.25 mm2 [AWG16] (1.25 mm2 [AWG16])*1

1.25 mm2 [AWG16] 1.25 mm2 [AWG16]

Remarks - Max.length: 200 m [656 ft] Max. length: 100 m [328 ft] Rated voltage: L1-N: 220~240 VRated load: 0.6 A

Transmission Cables MA Remote Controller Cables External Input External OutputType of Cable

Shielding wire (2-core)CVVS, CPEVS or MVVS

Sheathed 2-core cable CVV (unshielded)

Sheathed multi-core cable CVV or MVV (unshielded)

Sheathed multi-core cable (unshielded) CVV or MVV

Cable Diameter

More than 1.25 mm2 [AWG16]

1.25 mm2 [AWG16] (1.25 mm2 [AWG16])*1

1.25 mm2 [AWG16] 1.25 mm2 [AWG16]

Remarks - Max.length: 200 m [656 ft] Max. length: 100 m [328 ft] Rated voltage: L1-N: 220~240 VRated load: 0.6 A

PWFY-P36,72NMU-E-AU

11-2-2. Address SettingSwitch OperationOperate with the main power turned OFF

• There are two types of rotary switch setting available: setting addresses 1 to 9 and over 10, and setting branch numbers.a) How to set addresses Example: If Address is “3”, remain SWU2 (for over 10) at “0”, and match SWU1 (for 1 to 9) with “3”.b) How to set branch numbers SWU3 (Series R2 only) Match the indoor unit’s refrigerant pipe with the BC controller’s end connection number. Remain other than R2 at “0”.• The rotary switches are all set to “0” when shipped from the factory. These switches can be used to set unit addresses and branch numbers at will.

SWU2 SWU3SWU1


11. SYSTEM DESIGN

11-2-3. Setting AddressesUnit

PWFY unitStandard indoor unit

ME, LOSSNAYRemote controller(Main)

ME, LOSSNAYRemote controller(Sub)

Address setting

01 ~ 50

52 ~ 99, 100

101 ~ 150

151 ~ 199, 200

NoteExample

The address of outdoor unit + 1

Please reset one of them to an address between 52 and 99 when two addresses overlap.

The address automatically becomes "100" if it is set as "01~ 50"

The smallest address of indoor unit in the group + 100

The place of "100" is fixed to "1"

System remotecontroller

ON/OFF remote controller

AG-150GB-50

000, 201 ~ 250

000, 201 ~ 250

000, 201 ~ 250

Loca

l rem

ote

cont

rolle

rS

yste

m c

ontro

ller

The address of main remote controller + 50

The address automatically becomes "200" if it is set as "00"

10 1

10 1

0 1 2 3 4 5 6 7

8

9 0 1 2 3 4 5 6 7

8

9

10 1

10 1

0 1 2 3 4 5 6 7

8

9 0 1 2 3 4 5 6 7

8

9

0 1 2 3 4 5 6 7

8

9 0 1 2 3 4 5 6 7

8

9

0 1 2 3 4 5 6 7

8

9 0 1 2 3 4 5 6 7

8

9

0 1 2 3 4 5 6 7

8

90 1 2 3 4 5 6 7

8

9 0 1 2 3 4 5 6 7

8

9

10 1

10 1100

0 1 2 3 4 5 6 7

8

90 1 2 3 4 5 6 7

8

9 0 1 2 3 4 5 6 7

8

9

10 1100

10 1100

LMAP03U 201 ~ 250

1

1

Fixed

Fixed

Group remote controller 201 ~ 250

The smallest group No. to be managed + 200

10 1

2Fixed

2Fixed

Outdoor unit

BC controller(Main)

53 ~ 99, 100Lowest address within the indoor units connected to the BC controller (Sub) plus 50.

10 1

BC controller(Sub)

51 ~ 99, 100

The smallest address of indoor unit in same refrigerant system + 50Assign sequential address numbers to the outdoor units in one refrigerant circuit system. OC and OS are automatically detected. (Note 2) Please reset one of them to an address between 51

and 99 when two addresses overlap. The address automatically becomes "100" if it is set

as "01~ 50"

Use the most recent address within the same group of indoor units. Make the indoor units address connected to the BC controller (Sub) larger than the indoor units address connected to the BC controller (Main).If applicable, set the sub BC controllers in an PURY system in the following order: (1) Indoor unit to be connected to the BC controller (Main) (2) Indoor unit to be connected to the BC controller (No.1 Sub) (3) Indoor unit to be connected to the BC controller (No.2 Sub)Set the address so that (1)<(2)<(3)

0 1 2 3 4 5 6 7

8

9 0 1 2 3 4 5 6 7

8

9

0 1 2 3 4 5 6 7

8

9 0 1 2 3 4 5 6 7

8 9

0 1 2 3 4 5 6 7

8

9 0 1 2 3 4 5 6 7

8

9

0 1 2 3 4 5 6 7

8

9 0 1 2 3 4 5 6 7

8

9

10 1(Note1)

0,2 0~5 0~9

BAC-HD150 000, 201 ~ 250

10 1100

0,2 0~5 0~9 Settings are made with setting tool of BM ADAPTER.

Note1: To set the address to "100", set it to "50"Note2: Outdoor units OC and OS in one refrigerant circuit system are automatically detected. OC and OS are ranked in descending order of capacity. If units are the same capacity, they are ranked in ascending order of their address.


11-2-4. System Examples

11. SYSTEM DESIGN

2. Address should be set to Indoor units, LOSSNAY and central controller.

3. M-NET power is supplied by the Outdoor unit at TB3, while Indoor unit and MA RC consume the M-NET power for transmission use. For details, refer System configuration restrictions".

NOTE:1. Outdoor units OC and OS in one refrigerant circuit system are automatically detected. OC and OS are ranked in descending order of capacity. If units are the same capacity, they are ranked in ascending order of their address.

Indoor unit

Indoor unit

PWFY-P36NMU-E-BUPWFY-P36NMU-E-AUPWFY-P72NMU-E-AU

PWFY-P36NMU-E-BUPWFY-P36NMU-E-AUPWFY-P72NMU-E-AU

C/R AMWMA(Main) (Sub)

MA R/C

SRU

Wireless R/C

*1

*2 System controller should connect to TB7 at Outdoor and use power supply unit together in Multi-Refrigerant-System.

*1

01BC controller

53

BC controller(Main)

93

033020TB15TB5 5BT20BT 2BT5BT

Transmission BoosterPAC-SF46EPA

TB53BT51BT51BT TB15

MA R/C(Main) (Sub)

MA R/C

TB15

ME R/C MA R/CPZ-52SF

SRU

Wireless R/C

*1

*1 142 143

41 42 43 95 45 46TB15TB5 5BT20BT

LOSSNAY

5BT5BT5BT TB15

*1 For Wireless R/C and Signal receiver unit (SRU), channel 1, 2 and 3 are selectable and should be set to same channel.

BC controller(Sub1)

Group 212 puorG1 puorG

Group 32 43 puorG33 puorG13 puorG

TB3

TB7 7BT7BT7BT TB7

TB3

201

PSU

5251

OC OS

PURY-P-TSHMU/YSHMU

SC

TB3TB3

9291

OC OS

PURY-P-TSHMU/YSHMU

TB3

97

OC

CN41CN40CN41CN40 CN41CN40CN41 14NC04NC CN40

ONDipSW2-1

ONDipSW2-1

ONDipSW2-1

ONDipSW2-1

ONDipSW2-1

PURY-P-TSHMU/YSHMU

4. Indoor units should be set with a branch number.5. Assign an address to each of the sub BC controllers (SC1 and SC2) which equals the sum of the smallest address of the indoor units that are connected to each sub BC controller and 50.

*2

MA Remote Controller, Multi-refrigerant system, System Controller at TB7 side.

PWFY-P36NMU-E-BU/PWFY-P36,72NMU-E-AU with R2-Series Outdoor Units


PWFY-P36,72NMU-E-AU with Y-Series Outdoor Units

11. SYSTEM DESIGN

2. Address should be set to Indoor units, LOSSNAY and central controller.

3. M-NET power is supplied by the Outdoor unit at TB3, while Indoor unit and MA consume the M-NET power for transmission use. For details, refer to "System configuration restrictions".

NOTE:1. Outdoor units OC, OS1 and OS2 in one refrigerant circuit system are automatically detected. OC, OS1 and OS2 are ranked in descending order of capacity. If units are the same capacity, they are ranked in ascending order of their address.

Indoor unit

PWFY-P36NMU-E-AUPWFY-P72NMU-E-AU


MA(Main)

WMA

MA

*2 System controller should connect to TB7 at Outdoor and use power supply unit together in Multi-Refrigerant-System.

03302010TB15 5BT5BT 2BT5BT

Transmission BoosterPAC-SF46EPA

TB53BT51BT51BT TB15

MA(Main)

MA(Sub)

TB15


WMA MA

41 42 43 45 46TB15 5BT5BT

LOSSNAY

5BT5BT5BT TB15

SRU

Wireless R/C

*1

*1

*1 For Wireless R/C and Signal receiver unit (SRU), channel 1, 2 and 3 are selectable and should be set to same channel.

Group 212 puorG1 puorG

Group 32 43 puorG33 puorG13 puorG

TB3 TB3

TB7 7BT7BT7BT7BT TB7

TB3

201

PSU

*2

535251

OC OS1 OS2

PUHY-P-YSHMU

SC

TB3TB3

9291

OC OS1

PUHY-P-YSHMU

TB3

97

OC

CN41CN40CN41CN40CN41CN40 CN41CN40CN41 14NC04NC CN40

ONDipSW2-1

ONDipSW2-1

ONDipSW2-1

ONDipSW2-1

ONDipSW2-1

ONDipSW2-1

PUHY-P-YHMU

Wireless R/C

*1

*1


11. SYSTEM DESIGN

11-2-5. External Input/Output FunctionPreset temperature input (external analog input: 4mA-20mA)External input is input through CN421, CN422 on the circuit board. (Fig. 1)

[Fig. 1]

Use the supplied connector. If no temperature settings are made via the MA remote controller, the temperature changes with the current of generator. Refer to the instructions manual that came with the MA remote controller for how to make the settings.4 mA → 50 °F (10 °C) 20 mA → 160 °F (71 °C)

External output terminalExternal output terminal (refer to Fig. 2) is ineffective when the circuit is open. Refer to Table 1 for information about each contact.The current in the circuit to be connected to the external output terminal must be 0.6A or less.

External input terminalWiring length must be within 328 ft. (100 m).External input terminal (refer to Fig. 2). Refer to Table 2 through Table 4 for information about each contact.Only the “pump interlock” function is ineffective when the circuit is short-circuited.Connect a relay circuit to the external output terminal as shown in Fig. 3.The specifications of the relay circuit to be connected must meet the following conditions. Contact rating voltage >= DC15VContact rating current >= 0.1AMinimum applicable load =< 1mA at DC

*1 PWFY-P36NMU-E-BU: Hot Water PWFY-P36, 72NMU-E-AU: Heating*2 Effective when SW 4-3 is set to ON.*3 Effective when SW 4-4 is set to ON.*4 PWFY-P36, 72NMU-E-AU only*5 When Heating ECO mode is effective, the outlet water temp. will be changed based on ambient temp. automatically.*6 When Anti-freeze mode is effective, the unit will work for keeping set water temp. automatically.Note: Dip S/W 1-1 OFF: Water Inlet Temp. Dip S/W 1-1 ON : Water Outlet Temp. The factory setting for Dip SW 1-1 is OFF.Signal priority = External input > centralized controller > remote controller

CN

421

(BK

)

(BU

)C

N42

2

32

+

21 13

currentdirection

Current generator

Externalanalog input

+

currentdirection

CN

421

(BK

)(B

U)

CN

422

3

2

2

1

1

3

[Fig. 2]

OUT4OUT3OUT2

TB141A

OUT1

IN1 IN2 IN3 IN4 IN5IN6 IN7 IN8

TB142CTB142BTB142A

COM+

[Table. 1]

OUT1 Operation ON/OFF

OUT2 Defrost

OUT3 Compressor

OUT4 Error Signal

IN1 Pump Interlock[Table 2 TB142A]

IN3 Connection DemandIN4 Operation ON/OFF

[Table 3 TB142B]

[Fig. 3]

COM+ CommonIN5 *1 Hot Water/HeatingIN6 *2 Heating ECO *5IN7 *3 Antifreeze *6IN8 *4 Cooling Operation

[Table 4 TB142C]


11. SYSTEM DESIGN

11-3. InstallationSelecting an installation site• Do not install outdoors. The unit is not waterproof.• Back up system is recommended in case of PWFY unit breakdown.• The unit will get hot. Do not install in a location where heat gets trapped inside. • 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.• Do not install the unit where corrosive gas is generated.• Have installation work in order to protect against earthquake. Any installation deficiency may cause unit to fall down, resulting in a personal injury.• Pay a special attention to the place, such as a basement, etc. where refrigeration gas can stay, since refrigeration is

heavier than the air.• Do not install the unit where combustible gas may leak.- If the gas leaks and accumulates around the unit, an explosion may result.• When installing the unit in a hospital, communication station, or similar place, provide sufficient protection against

noise.- The inverter equipment, private power generator, high-frequency medical equipment, or radio communication equipment

may cause the air conditioner to operate erroneously, or fail to operate. Also, the air conditioner may affect such equipment by creating noise that disturbs medical treatment or image broadcasting.

• Do not install the unit on a structure that may cause leakage.- When the room humidity exceeds 80 % or when the drain pipe is clogged, condensation may drip from the indoor unit.

Perform collective drainage work together with the unit, as required.

Securing installation and service space

• Please secure the following service spaces after installation. (All servicing can be performed from the front of the unit) [Fig. 4]

(B)

a

b

c(C)

(A)

Model

a15-3/4(400)

11-13/16(300)

23-5/8(600)

15-3/4(400)

11-13/16(300)

23-5/8(600)

15-3/4(400)

PWFY-P36NMU-E-BU PWFY-P36NMU-E-AU PWFY-P72NMU-E-AU

Unit : in (mm)

11-13/16(300)

23-5/8(600)

b

c

(A) Piping Space (right side)(B) Top View(C) Service Space (front side)

Combining indoor units with BC controllers and outdoor unitsFor combining indoor units with BC controllers and outdoor units, refer to section BC controllers and outdoor units installation manual.

Warning:

• Be sure to install the unit in a location which can adequately support its weight.- If there is insufficient strength to support the unit’s weight, it could fall and cause injuries.


11. SYSTEM DESIGN

++

A. For Air conditioning using such as Panel Heaters, Floor Heating and Fan coil unitsRequired total heating capacity BTUSafety factor; %

B. For Sanitary use such as Shower and BathroomsConditions

Tank inlet water Temp.; °FTank outlet water Temp.; °F(Set Temp 23 °F)Safety factor for Heat Loss; %Operating time; HoursFor Shower; G/Person x Person = G (Water Temp. Condition °F)

°F)For Bathrooms; G/Person x Person = G (Water Temp. ConditionThe conversion of water volume to °F

x ( - ) / ( - )+ x ( - ) / ( - )= G/dayHeating Capacity Calculation for sanitary usage

/ 1,000 x ( - ) / 2 = M BTU / dayThe conversion of M BTU to BTU

x 1,000 / = BTUC. Total (A+B)

Total Heating Capacityx (100%

+x (100%

%) + x (100% %) = BTUD. No. of units required

Safety factor; %%) / 39900BTU = units

units are required

TankPWFY unit 4

3 3

33

7

11-3-1. Calculating the Necessary Heat Capacity


11-3-2. Refrigerant and Drain Piping Specifications

11. SYSTEM DESIGN

To avoid condensation, install insulation and antisweating materials on the refrigerant and drain pipes.When using commercially available refrigerant pipes, be sure to install commercially available insulating material (with a heat-resistant temperature of more than 212°F (100°C) and thickness given below) onto both the liquid and gas pipes.Be also sure to install commercially available insulating material (with a form polyethylene’s specific gravity of 0.03 and thickness given below) onto all pipes that pass through rooms.1) Select the thickness of insulating material by pipe size.

Model PWFY-P36NMU-E-BU PWFY-P36NMU-E-AU PWFY-P72NMU-E-AUGas ø15.88 (5/8) ø15.88 (5/8) ø19.05 (3/4)

Liquid ø9.52 (3/8) ø9.52 (3/8) ø9.52 (3/8)Drain ø32 (1-1/4)

Thickness of Insulation Material More than 10 mm (13/32 in.)

2) If the unit is used on the highest story of a building and under conditions of high temperature and humidity, it is necessary to use pipe size and insulating material’s thickness more than those given in the table above.

3) Follow customer’s specifications, if applicable.

Refrigerant Piping, Drain Pipe, and Filling Port

(D)

(A)

(B)

(C)

(E)

480

(18-

29/3

2)

100

(3-1

5/16

)(1

7-17

/32)

1

91

(4-1

/32)

1

02

114(4-1/2)

134(5-9/32)

184 (7-1/4)206 (8-1/8)*1

(A) Refrigerant piping (gas)(B) Refrigerant piping (liquid)(C) Water inlet(D) Water outlet(E) Drain outlet*1: PWFY-P36, 72NMU-E-AU


11-3-3. Water Piping Installation

11. SYSTEM DESIGN

Water-side heat exchanger

Solid arrows in the figure indicate the direction of water flow.

PWFY Field supply

Tank Outlet

Inlet

City waterOverflowed water

Roof

To drain outlet

Uphill gradient ≥ 1/200

P

P

T

T

P

1)

1)

1)

1)

2)

2)

3)

3) 3)

4)

4) 4)4)

5)

5) 5)

6)

7)

8) 8)

9)

11) 11)12)

Water Circuit Sample

Consider the following when designing and installing a water piping system. (Items (1)-(12) in the figure are explained below.) 1) Union joints/flange joints etc. Install a flange etc. to allow for easy replacement of connected equipment.2) Thermometer For checking unit performance and operation monitoring3) Water pressure gauge For operation status monitoring4) Valve Install a valve for easy replacement and cleaning of the refrigerant flow control device. Install a refrigerant flow control valve on the fan coil outlet side.5) Flexible joint Recommended to prevent the noise and vibration from the pump from being transmitted. 6) Drain pipe Install the drain pipe with an inclination of between 1/100 and 1/200 to provide a downward flow of drain water. For cold climate installation, take an appropriate measure (e.g., drain heater) to prevent the drain water from freezing.7) Pump Use a pump that is large enough to compensate for the total water pressure loss and to supply sufficient water to the unit.8) Air vent valve Provide air vent valves on the pipes.9) Expansion tank Install an expansion tank to accommodate expanded water and to supply water.10) Cold/Hot water pipe Use pipes that allow for easy air purging, and provide sufficient insulation.11) Drain valve Install drain valves so that water can be drained for servicing.12) Strainer Install a strainer near the PWFY unit to keep foreign materials from entering the water-side heat exchanger.

Sample of water circuit for ATW


11-3-4. Pump Interlock

11. SYSTEM DESIGN

The unit may become damaged if it is operated with no water circulating through the pipes.Be sure to interlock unit operation and the water-circuit pump. Use the terminal blocks for interlocking TB142A (IN1) that can be found on the unit.

IN1

TB142A

Water Pump

Strainer

Control Box

Broken lines are fieldsupply products.

Operation signalPump interlock

Pump Interlock Example Diagram


11-3-5. Water Processing and Water Quality Control

11. SYSTEM DESIGN

To preserve water quality, use closed water loops for the unit. When the circulating water quality is poor, the water heat exchanger can develop scales, leading to a reduction in heat-exchange power and possible corrosion of the heat exchanger. Please pay careful attention to water processing and water quality control when installing the water circulation system.• Remove of foreign objects or impurities within the pipes. During installation, take extreme care that foreign objects such as welding fragments, sealant particles, or rust, do not enter

the pipes.• Water Quality Processing

a) Depending on the quality of the cold-temperature water used in the air-conditioner, the copper piping of the heat exchanger may become corroded. We recommend regular water quality processing.Cold water circulation systems using open heat storage tanks are particularly prone to corrosion.When using an open-type heat storage tank, install a water-to-water heat exchanger, and use a closed-loop circuit on the air conditioner side. If a water supply tank is installed, keep contact with air to a minimum, and keep the level of dissolved oxygen in the water no higher than 1mg/liter.

b) Water quality standard

Reference : Guideline of Water Quality for Refrigeration and Air Conditioning Equipment. (JRA GL02E-1994)c) Please consult with a water quality control specialist about water quality control methods and water quality calculations

before using anti-corrosive solutions for water quality management.d) When replacing a previously installed air conditioning device (even when only the heat exchanger is being replaced), first

conduct a water quality analysis and check for possible corrosion. Corrosion can occur in cold-water systems even if there has been no prior signs of corrosion. If the water quality level has dropped, please adjust water quality sufficiently before replacing the unit. Do not exceed the maximum of 100L circulating water in the water pipe.

pH 77 ˚F (25 ˚C)Electric conductivity (mS/m) 77 ˚F (25 ˚C) (µ s/cm) 77 ˚F (25 ˚C)Chloride ion (mg Cl-/liter)Sulfate ion (mg SO42-/liter)Acid consumption (pH4.8) (mg CaCO3/liter)Total hardness (mg CaCO3/liter)Calcium hardness (mg CaCO3/liter)Ionic silica (mg SiO2/liter)Iron (mg Fe/liter)Copper (mg Cu/liter)

Ammonium ion (mg NH4+/liter)

Residual chlorine (mg Cl/liter)Free carbon dioxide (mg CO2/liter)Ryzner stability index

Standard items

Refer-ence items

Items

Lower mid-range temperature water system Water Temp. =< 140 ˚F (60 ˚C)

7.0 ~ 8.030 or less

[300 or less]50 or less50 or less

50 or less

70 or less50 or less30 or less1.0 or less1.0 or lessnot to be detected

0.3 or less0.25 or less0.4 or less

–

7.0 ~ 8.030 or less


50 or less



–

Tendency

Recirculating water Make-up water Corrosive Scale-forming

Higher mid-range temperature water system Water Temp. > 140 ˚F (60 ˚C)Recirculating water Make-up water

7.0 ~ 8.030 or less


50 or less



–

7.0 ~ 8.030 or less


50 or less



–

Sulfide Ion (mg S2-/liter)

Documents

HYDRONIC HEAT EXCHANGER UNITS PWFY-P-NMU-E-BU, -NMU-E … · Model PWFY-P36NMU-E-BU PWFY-P36NMU-E-AU PWFY-P72NMU-E-AU R2, H2i R2, WR2 series Y, H2i Y, WY series R2, H2i R2, WR2 series