Mitsubishi PUHZ-HRP200YKA Service Manual

SPLIT-TYPE, AIR TO WATER HEAT PUMP

SERVICE MANUAL

R410A

November 2009

No. OCH466

[Model name]

PUHZ-HRP200YKA

[Service Ref.]

PUHZ-HRP200YKA

CONTENTS

Note:

• This manual describes only
service data of the outdoor unit.

• Refer to Technical manual of
ATW, I/F and FTC.

• RoHS compliant products have
<G> mark on the spec name
plate.

PUHZ-HRP200YKA

1. SAFETY PRECAUTION

2. SPECIFICATIONS

3. DATA

4. OUTLINES AND DIMENSIONS

5. WIRING DIAGRAM

6. WIRING SPECIFICATIONS

7. REFRIGERANT SYSTEM DIAGRAM

8. TROUBLESHOOTING

9. DISASSEMBLY PROCEDURE

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PARTS CATALOG (OCB466)

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2

5

7

9

10

11

13

14

47

1

SAFETY PRECAUTION

1-1. ALWAYS OBSERVE FOR SAFETY

Before obtaining access to terminal, all supply circuits must be disconnected.

Preparation before the repair service.

• Prepare the proper tools.

• Prepare the proper protectors.

• Provide adequate ventilation.

• After stopping the operation of the air conditioner, turn off the power-supply beaker.

• Discharge the condenser before the work involving the electric parts.

Precautions during the repair service.

• Do not perform the work involving the electric parts with wet hands.

• Do not pour water into the electric parts.

• Do not touch the refrigerant.

• Do not touch the hot or cold areas in the refrigerating cycle.

• When the repair or the inspection of the circuit needs to be done without turning off the power,
exercise great caution not to touch the live parts.

1-2. CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilizing refrigerant R410A

Do not use refrigerant other than R410A.

If other refrigerant (R22 etc.) is used, chlorine in refrigerant can cause deterioration of refrigerant oil etc.

Use a vacuum pump with a reverse flow check valve.

Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of refrigerant oil etc.

Use the following tools specifically designed for use with R410A refrigerant.

The following tools are necessary to use R410A refrigerant.

Tools for R410A
Gauge manifold
Charge hose

Gas leak detector

Torque wrench

Handle tools with care.

If dirt, dust or moisture enters into refrigerant cycle, that can cause deterioration of refrigerant oil or malfunction
of compressor.

Vacuum pump adaptor
Electronic refrigerant

charging scale

Do not use a charging cylinder.

If a charging cylinder is used, the composition of refrigerant will change and the efficiency will be lowered.

Ventilate the room if refrigerant leaks during operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.

Charge refrigerant from liquid phase of gas cylinder.

If the refrigerant is charged from gas phase, composition change may occur in refrigerant and the efficiency
will be lowered.

2

[1] Cautions for service

(1) Perform service after recovering the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.

[2] Additional refrigerant charge

When charging directly from cylinder

· Check that cylinder for R410A on the market is syphon type.

· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)

Unit

Gravimeter

[3] Service tools

Use the below service tools as exclusive tools for R410A refrigerant.

No. Tool name Specifications

Gauge manifold · Only for R410A

1

· Use the existing fitting

· Use high-tension side pressure of 5.3 MPa·G or over.

Charge hose · Only for R410A

2

· Use pressure performance of 5.09 MPa·G or over.

Electronic scale

3

Gas leak detector · Use the detector for R134a, R407C or R410A.

4

Adaptor for reverse flow check · Attach on vacuum pump.

5

Refrigerant charge base

6

Refrigerant cylinder · Only for R410A Top of cylinder (Pink)

7

Refrigerant recovery equipment

8

specifications

—

—

Cylinder with syphon

—

. (UNF1/2)

3

1-3. CAUTIONS FOR REFRIGERANT PIPING WORK

Tools for R410A (The following table shows whether conventional tools can be used or not.)

Tools and materials Use R410A tools Can R22 tools be used?
Gauge manifold

Charge hose
Gas leak detector

Refrigerant recovery equipment
Refrigerant cylinder
Safety charger

Charge valve

Vacuum pump

Bender
Pipe cutter
Welder and nitrogen gas cylinder
Refrigerant charging scale

Vacuum gauge or thermis­tor vacuum gauge and
vacuum valve
Charging cylinder

: Prepare a new tool. (Use the new tool as the tool exclusive for R410A.)
: Tools for other refrigerants can be used under certain conditions.
: Tools for other refrigerants can be used.

Air purge, refrigerant charge
and operation check
Gas leak check
Refrigerant recovery
Refrigerant charge
Prevent compressor malfunction

when charging refrigerant by
spraying liquid refrigerant

Prevent gas from blowing out
when detaching charge hose

Vacuum drying and air
purge

Bend the pipes
Cut the pipes
Weld the pipes
Charge refrigerant
Check the degree of vacuum. (Vacuum

valve prevents back flow of oil and refri­gerant to thermistor vacuum gauge)
Refrigerant charge

Tool exclusive for R410A
Tool exclusive for R410A
Tool for HFC refrigerant
Tool exclusive for R410A
Tool exclusive for R410A
Tool exclusive for R410A

Tool exclusive for R410A

Tools for other refrigerants can
be used if equipped with adap­ter for reverse flow check
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants
can be used

Tool exclusive for R410A

(Usable if equipped

with adapter for rever­ se flow)

Can R407C tools be used?

(Usable if equipped

with adapter for rever­ se flow)

4

2

SPECIFICATIONS

2-1. SPECIFICATION

2.-1-1. PUHZ-HRP200YKA
<Reference data> Plate heat exchanger (ACH50-50 plates) *2pcs [connected in parallel]

Nominal water fl ow L/min 65.9

Heating
(A7/W35)

Heating
(A7/W45)

Heating
(A7/W55)

Heating
(A-7/W35)

Heating
(A-7/W45)

Heating
(A-7/W55)

Heating
(A-15/W35)

Heating
(A-15/W45)

Heating
(A-15/W55)

Heating
(A2/W35)

Nominal water fl ow L/min 57.3

Cooling
(A35/W7)

Cooling
(A35/W18)

Note: "COP" and "Power input" in the above table are values that does NOT contains the "pump input (based on EN 14511)".

Capacity kW 23.0

COP 3.65

Power input kW 6.31

Capacity kW 23.0

COP 2.77

Power input kW 8.29

Capacity kW 23.0

COP 2.27

Power input kW 10.15

Capacity kW 23.0

COP 2.24

Power input kW 10.25

Capacity kW 23.0

COP 1.93

Power input kW 11.90

Capacity kW 23.0

COP 1.66

Power input kW 13.86

Capacity kW 23.0

COP 2.05

Power input kW 11.24

Capacity kW 22.2

COP 1.80

Power input kW 12.36

Capacity kW 21.2

COP 1.36

Power input kW 15.64

Capacity kW 23.0

COP 2.37

Power input kW 9.69

Capacity kW 20.00

EER 2.22

Power input kW 9.01

Capacity kW 20.00

EER 3.55

Power input kW 5.64

Rating conditions

Nominal operating condition

Heating (A2/W35)

Outside air temperature (Dry-bulb) + 2 °C

Outside air temperature (Wet-bulb) + 1 °C

Water temperature (inlet/outlet) + 30 °C/+ 35 °C

Heating (A7/W35)

Outside air temperature (Dry-bulb) + 7 °C

Outside air temperature (Wet-bulb) + 6 °C

Water temperature (inlet/outlet) + 30 °C/+ 35 °C

Heating (A7/W45)

Outside air temperature (Dry-bulb) + 7 °C

Outside air temperature (Wet-bulb) + 6 °C

Water temperature (inlet/outlet) + 40 °C/+ 45 °C

Heating (A7/W55)

Outside air temperature (Dry-bulb) + 7 °C

Outside air temperature (Wet-bulb) + 6 °C

Water temperature (inlet/outlet) + 50 °C/+ 55 °C

Heating (A-7/W35)

Outside air temperature (Dry-bulb) - 7 °C

Outside air temperature (Wet-bulb) —

Water temperature (inlet/outlet) — °C/+ 35 °C

Heating (A-7/W45)

Outside air temperature (Dry-bulb) - 7 °C

Outside air temperature (Wet-bulb) —

Water temperature (inlet/outlet) — °C/+ 45 °C

Heating (A-7/W55)

Outside air temperature (Dry-bulb) - 7 °C

Outside air temperature (Wet-bulb) —

Water temperature (inlet/outlet) — °C/+ 55 °C

Heating (A-15/W35)

Outside air temperature (Dry-bulb) - 15 °C

Outside air temperature (Wet-bulb) —

Water temperature (inlet/outlet) — °C/+ 35 °C

Heating (A-15/W45)

Outside air temperature (Dry-bulb) - 15 °C

Outside air temperature (Wet-bulb) —

Water temperature (inlet/outlet) — °C/+ 45 °C

Heating (A-15/W55)

Outside air temperature (Dry-bulb) - 15 °C

Outside air temperature (Wet-bulb) —

Water temperature (inlet/outlet) — °C/+ 55 °C

Cooling (A35/W7)

Outside air temperature (Dry-bulb) + 35 °C

Outside air temperature (Wet-bulb) + 24 °C

Water temperature (inlet/outlet) + 12 °C/+ 7 °C

Cooling (A35/W18)

Outside air temperature (Dry-bulb) + 35 °C

Outside air temperature (Wet-bulb) + 24 °C

Water temperature (inlet/outlet) + 23 °C/+ 18 °C

5

2-1-2. Outdoor unit

Model name PUHZ-HRP200YKA

Running current

Heating(A7/W35)
Cooling(A35/W7)

Power factor

Heating(A7/W35)

Cooling(A35/W7)
Power supply (phase, cycle, voltage) 3 phase, 50 Hz, 400 V
Max. current A 25.0
Breaker size A 32
Outer casing Galvanized plate
External fi nish Munsell 3Y 7.8/1.1
Refrigerant control Liner expansion valve
Compressor Hermetic scroll

Model ANB66FJHMT

Motor output kW 4.7

Start type Inverter

Protection devices HP switch

Oil (Model) L 1.7 (FV50S)
Crankcase heater W —
Heat exchanger Air Plate fi n coil

Water Plate heat exchanger
Fan Fan (drive) × No. Propeller fan × 2

Fan motor output

Air fl ow m³/min 140

Defrost method Reverse cycle *¹
Noise level (SPL) Heating dB 59 *²

Cooling dB 58 *²
Dimensions Width

Depth

Height
Weight kg (lbs) 145 (320)
Refrigerant R410A

Quantity kg (lbs) 7.1 (15.7)
Guaranteed operating
range (Outdoor)
Outlet water temp.
(Max. in heating, Min. in cooling)
Nominal return water
temperature range

Heating °C -25 ~ +35

Cooling °C -5 *

Heating °C +60

Cooling °C +5

Heating °C +10 ~ +59

Cooling °C +8 ~ +28
Water fl ow rate range L/min 28.7 ~ 68.9

A 9.6

A 13.7
%95
%95

LP switch

Discharge thermo

kW 0.150 × 2

(CFM) (4,940)

mm (in.)
mm (in.)
mm (in.)

1050 (41-5/16)

330 + 30 *³ (13+1-3/16)

1338 (52-11/16)

4

~ +46

Maximum outlet water temperature

65

]

㷄

60

55

50

45

Maximum outlet water temptemperature [

40

-25-20-15-10 -5 0 5 10

*1 Hot gas with 4-way valve
*2 at distance of 1m from outdoor unit
*3 grill
*4 With the optional air outlet guide, the operation at

-15㷄 outdoor temperature is possible.

Ambient tem perature [㷄]

6

3

DATA

3-1. Addition of refrigerant

At time

of

shipping

30 m and less 31-40 m 41-50 m 51-60 m 61-70 m 71-80 m

Total piping length (one way)

Amount of additional refrigerant charge (kg)

For single combination

(1 indoor unit)

For twin / triple /

quadruple combination

(2-4 indoor units)

When length exceeds 50 m for twin / triple / quadruple combination

When the total length of the piping exceeds 50 m, calculate the amount of additional charge based on the following requirements.
Note: If the calculation produces a negative number (i.e. a “minus” charge), of if calculation results in an amount that is less than the “Additional charage amount for 50 m”,
perform the additional charge using the amount shown in “Additional charge amount for 50 m”.

Amount of additional
charge

Additional charge amount
for 50 meters

7.1 kg

Main piping:
Liquid line size
ø12.7 overall length ×

=

0.17

(kg)

<Limits of refrigerant piping installation>

No additional

charge necessary

+++–

(m) × 0.17 (kg/m)

1.8 kg








A: Main piping

B, C, D, E: Branch

HRP200 : A+B+C(+D)(+E) ≤ 80 m

* “D” is for triple“.

* “E” is for four (quadruple).

1.4 kg 2.8 kg

0.9 kg 1.8 kg

Main piping:
Liquid line size
ø9.52 overall length ×

0.14 (Gas line: ø25.4)

(m) × 0.14 (kg/m)

Indoor unit

Outdoor unit

Multi distribution pipe (option)

Height difference (Indoor unit­Outdoor unit) Max. 30 m

Height difference (Indoor unit­Indoor unit) Max. 1 m

piping

Max. 20m

Branch piping:
Liquid line size
ø9.52 overall length ×

0.05 (Gas line: ø15.88)

(m) × 0.05 (kg/m)

Permissible total

piping length
A+B+C+D+E

80 m and less

|

B-C|or|B-D|or

|

B-E|or|C-D|or
|

C-E|or|D-E

8 m and less

4.2 kg 5.6 kg 7.0 kg

Calculate the amount of additional refrigerant

charge using formula provided below.

Branch piping:
Liquid line size
ø6.35 overall length ×

0.02

(m) × 0.02 (kg/m)

A+B or A+C

or

A+D or A+E

70 m and less

No. of bends

|

Within 15

Charge-less
piping length

A+B+C+D+E

30 m and less

4.3 (kg)

3-2. NOISE CRITERION CURVES

MICROPHONE

1m

1.5m

UNIT

GROUND

PUHZ-HRP200YKA

90

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF
HEARING FOR
CONTINUOUS

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 μbar)

NOISE

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

MODE

COOLING

HEATING

SPL(dB)

58
59

LINE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

7

3-3. Standard operation data Reference data (connect to Plate HEX)

(ACH50-50 plates) o 2 pcs [connected in parallel]

Mode

Cooling

(A35/W7)

Capacity W 20,000 23,000

Total

Input kW 9.01 6.31

Outdoor unit PUHZ-HRP200YKA

Phase, Hz 3, 50

Voltage V 400

Current A 13.7 9.6

Electrical circuit

Discharge pressure MPa 3.0 2.0

Suction pressure MPa 0.7 0.6

Discharge temperature ºC 79 73

Heating

(A7/W35)

Condensing temperature

ºC 49 35

Suction temperature ºC 8 8

Evaporating temperature

Evaporator inlet temperature

Refrigerant circuit

Evaporator outlet temperature

Condenser inlet temperature

Condenser outlet temperature

ºC 6 2

ºC 7 ——

ºC 6 ——

ºC —— 65

ºC —— 34

Flow volume L/min 57.3 65.9

Water

Outlet water temperature

conditions

Intake air
temperature

Outdoor

conditions

Piping length : Main 2.5m, Branch 2.5m / 2.5m
The unit of pressure has been changed to MPa based on international SI system.
The conversion factor is: 1 (MPa) = 10.2 (kgf/cm²)

D.B. ºC 35 7

W.B. ºC 24 6

ºC 7 35

3-4. CAPACITY CORRECTION (Refrigerant piping length)

Cooling and heating capacity is lowered according to the piping length. Capacity can be obtained by referring to the following
capacity curves.
Corrected pipe length (m) = actual pipe length (m) + number of bends × 0.3 (m)

100

95

90

85

80

Capacity ratio [%]

75

70

5 101520253035404550556065707580

Corrected pipe length [m]

8

Cooling
Heating

HRP200

HRP200

4

OUTLINES AND DIMENSIONS

PUHZ-HRP200YKA

19

225

2-U Shaped notched holes

(Foundation Bolt M10)

600

Rear Air Intake

Installation Feet

225

417
370

330

40

53560

28

42

2-12×36 Oval holes

60

70

30

Terminal connection

Left···Power supply wiring

Right···Indoor/Outdoor wiring

(Foundation Bolt M10)

1050

Earth terminal

Air Discharge

362

Service panel

Handle for moving

632

1338

Air intake

986
982

1

2

Brazing

369

*1,*2 : 442
*1 450

342

Rear piping cover

Front piping cover

81

26

Bottom piping hole

(Knockout)

86

Drain hole

154136

Unit: mm

(5-ø33)

110 160 160 160

45

Side Air Intake

4 PIPING-WIRING DIRECTIONS

Piping and wiring connections

can be made from 4 directions:

FRONT,Right,Rear and Below.

FOUNDATION

<Foundation bolt height>

FREE

30

Less than

500
Over

10

Over

Service space

Over 10mm

Over 10mm

500

Over

3 FOUNDATION BOLTS

Please secure the unit firmly

with 4 foundation (M10) bolts.

(Bolts and washers must be

purchased locally.)

150

Over

2 SERVICE SPACE

Dimensions of space needed

for service access are

shown in the below diagram.

1 FREE SPACE (Around the unit)

The diagram below shows a

basic example.

Explanation of particular details are

given in the installation manuals etc.

Handle for moving

Side Air Intake

Rear Air Intake

Over 150mm

Over 1000mm

Handle for

moving

Handle for

moving

Power supply wiring hole

(ø40Knockout)

Rear trunking hole

(Knockout)

60

6055

Power supply wiring hole

(ø27Knockout)

Power supply wiring hole

(ø40Knockout)

Power supply wiring hole

(ø27Knockout)

Power supply wiring hole

(ø27Knockout)

6373

Right trunking hole

(Knockout)

60

75 50

63

27

92

Right piping hole

(Knockout)

6373

60 55

60

Rear piping hole

ø92

27

55

26

ø92

55

73

26
27

55

92

ø92

(Knockout)

92

75

29 92

26

75

···Refrigerant GAS pipe connection (attached JOINT)ø25.4(Brazing locally)

···Refrigerant LIQUID pipe connection (FLARE) ø 9.52(3/8F)

*1···Indication of STOP VALVE connection location.

Example of Notes

*2···(FLARE)ø 19.05(3/4F)

1

2

Piping Knockout Hole Details

Front trunking hole

(Knockout)

Power supply wiring hole

(ø40Knockout)

9

Front piping hole

(Knockout)

5 WIRING DIAGRAM

PUHZ-HRP200YKA

SYMBOL NAME SYMBOL NAME SYMBOL NAME
TB1
TB2 Terminal Block<Indoor/Outdoor>
MC
MF1,MF2
21S4
63H
63L Low Pressure Switch
63HS High Pressure Sensor
TH3
TH4
TH6
TH7
TH32
LEV-A,LEV-B,LEV-C
ACL4
DCL
CB1,CB2
RS
FUSE1, FUSE2
CY1,CY2

Terminal Block<Power Supply>

Motor for Compressor
Fan Motor
Solenoid Valve (Four-Way Valve)
High Pressure Switch

Thermistor<Outdoor Pipe>

Thermistor<Discharge>
Thermistor<Outdoor 2-Phase Pipe>
Thermistor<Outdoor>
Thermistor<Suction>
Electronic Expansion Valve

Reactor
Reactor
Main Smoothing Capacitor
Rush Current Protect Resistor

Fuse<T15AL250V>
Capacitor

P. B.

SC-U/V/W
TB-L1/L2/L3
TB-P1
TB-P2
TB-C1
TB-N1
X52A

N.F.

LI1/ LI2/LI3/NI
LO1/ LO2/LO3
GD1,GD2

C.B.

SW1

SW4
SW5
SW6
SW7
SW8

Power Circuit Board
Connection Terminal<U/V/W-Phase
Connection Terminal<L1/L2/L3-Power supply

Connection Terminal
Connection Terminal
Connection Terminal
Connection Terminal

52C Relay

Noise Filter Circuit Board
Connection Terminal
Connection Terminal
Connection Terminal<Ground
Controller Circuit Board
Switch<Forced Defrost, Defect History Record
Reset, Refrigerant Address
Switch<Test Operation
Switch<Function Switch
Switch<Model Select
Switch<Function Setup
Switch<Function Setup

<

L1/L2/L3/NI-Power supply

<

L1/L2/L3-Power supply

>

>

>
>

>

>

>

>

>

>

>

SW9
SWP
CN31
LED1,LED2
F3,F4
SV1
SS
CNM
CNMNT

CNVMNT

CNDM

CN3S
CN51
X51,X52,X54

Switch
Switch<Pump Down
Connector<Emergency Operation
LED<Operation Inspection Indicators

Fuse<T6.3AL250V

Connector<Connection for Option
Connector<Connection for Option
Connector<A-Control Service Inspection Kit
Connector

<

Connected to Optional M-NET Adapter Board

Connector

<

Connected to Optional M-NET Adapter Board

Connector

<

Connected for Option (Contact Input)
Connector<Connection for Option>
Connector<Connection for Option>
Relay

>

>

>

>

>
>

>

>

>

>

INDOOR
UNIT

POWER
SUPPLY
3N~
400V 50Hz

MF1

MS

3~

MF2

MS

3~

TB2

S1

S2

S3

C.B.

1

1

CNS

(WHT)

CY1

3

CY2

1

ORN

BRN

TB1

L1

L2

L3

N

CNF1

(WHT)

7

CNF2

(WHT)

7

3

1

2

CNDC

(PNK)

YLW

RED

WHT

BLK

BLU

GRN/YLW

TH7 TH3 TH4

TH6

TH32

t° t° t° t°

2

1

TH7/6

TH32

(RED)

(BLK)

TRANS

CNAC
(WHT)

12

3

RED

WHT

FUSE1

FUSE2

RED

WHT

N. F.

LI 1

LI 2

LI 3

NI

4

UU

U

U

4121

(WHT)

U

TH3

BLK

t°

21

TH4

(WHT)

7

2

2

RS

RED

CNAC1

63H

(YLW)

CN2

(WHT)

F3

F4

(WHT)

63H

31

7

P. B.

7

(WHT)

1
2

1
2

1

BLK

BLK

TB-P1

63L

63L

(RED)

71

CN2

CN4

(WHT)

CN5

(RED)

X52A

DCL

31

31

63HS

63HS

(WHT)

LEV-A LEV-B

MM

31

LEV-A
(WHT)

LED1

LED2

CN4

(WHT)

2

1

2

21S4

TB-P2

GD2GD1

BLK

61

LEV-B
(RED)

1

5

1

LEV-C
(BLU)

X52

13

21S4

(GRN)

RED

CB1 CB2

CNDC
(PNK)

2

LEV-C

M

3

5

61

3151

CNVMNT

CNMNT

(WHT)

(WHT)

CNM

(WHT)

6

X54

13

SV1

(GRY)

SC-W
SC-V
SC-U

TB-C1 TB-N1

WHT

CNCT
(RED)

31

WHT

2

U

13

CNL

(BLU)

WHT

14

5

TB-L3
TB-L2
TB-L1

BLK

SW5SW8SW4SWP

X51

13

SS

(WHT)

+1 +1

SW6SW1

CN31

WHT

RED

CNAC2

(RED)

3112

LO 1

LO 2

LO3

ACL4

BLK

SW7

SW9

1
3

(WHT)

CNDM

1

CN51

(WHT)

5

BLK
WHT
RED

RED

WHT

BLK

When M-NET adapter is connected

5

+3

ABS

MC

W

V

MS

3~

U

+1 MODEL SELECT

MODEL

ON

HRP

OFF

200Y

+2 SW5 -1 to 5 : Function Switch.

+3 Setting of the starting ambient temp. of the

flash Injection.

indicates a switch position.

Ambient temp.

3°C or less

(lnitial setting)

0°C or less

-3°C or less

-6°C or less

+4 SW9-1 to 2 : Function Switch

5

SW11

SW1

CN5

(WHT)

1

LED2

SW12

LED3
LED4

M-NET SUBSTRATE

2

CND

1

(WHT)

CN2M

(WHT)

31

LED1

LED5

3

TB7

M-NET

SW6

12345678

SW9-3.4 +4

ON
OFF

1234

ON
OFF

1234

ON
OFF

1234

ON
OFF

1234

SW5-6 +2

ON
OFF

123456

10

WIRING SPECIFICATIONS6

D

For Heater

L
N

* With Heater

model only

S1
S2
S3

E

A

B

S2S1LN

S3

C

E

D

For Power For Power

For Heater For Heater For Heater

DD D D

B

E

Note: Only for Air to water application
When multiple indoor units (Hydro boxes) are connected to the outdoor unit, wire the PCB of either one of the indoor unit and the outdoor unit (S1,S2,S3).

It is impossible to connect the PCBs of multiple indoor units to the outdoor unit.

A Indoor unit
B Outdoor unit
C Remote controller
D Main switch (Breaker)
E Earth

C

AAA

EE

E

FIELD ELECTRICAL WIRING (power wiring specifications)

Outdoor unit model HRP200Y

Outdoor unit power supply

Outdoor unit input capacity Main switch (Breaker) *1 32 A

*1. A breaker with at least 3.0 mm contact separation in each poles shall be provided. Use earth leakage breaker (NV).
*2. Max. 80 m Total Max. including all indoor/indoor connection is 80 m.

*3. The 10 m wire is attached in the remote controller accessory.
*4. The fi gures are NOT always against the ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulated by the transformer or other device.

Outdoor unit power supply 5 × Min. 4

)

2

Indoor unit-Outdoor unit *2

Wiring

Indoor unit-Outdoor unit earth *2 1 × Min. 2.5

Wire No. ×

size (mm

Remote controller-Indoor unit *3 2 × 0.3 (Non-polar)
Outdoor unit L-N (single)

Outdoor unit L1-N, L2-N, L3-N (3 phase)
Indoor unit-Outdoor unit S1-S2 *4 AC 230 V
Indoor unit-Outdoor unit S2-S3 *4 DC 24 V

Circuit rating

Remote controller-Indoor unit *4 DC 12 V

• Use one cable for S1 and S2 and another for S3 as shown in the picture.

*4 AC 230 V

3N~ (3 ph 4-wires),

50 Hz, 400 V

Cable length 50m:3×4 (Polar)/

Cable length 80m:3×6 (Polar)

Notes: 1. Wiring size must comply with the applicable local and national code.

2.
(Design 60245 IEC 57

3. Use an earth wire which is longer than the other cords so that it will not become disconnected when tension is applied.

Power supply cords and Indoor/Outdoor unit connecting cords shall not be lighter than polychloroprene sheathed fl exible cord.

)

Caution: Be sure to install N-line. Without N-line, it could cause damage to the unit.

Power supply

Isolator

S1

A-Control
Outdoor Unit

S2

S3

Warning:

· In case of A-control wiring, there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation
between power line and communication signal line. Therefore, please turn off the main power supply when servicing. And do not touch the S1, S2, S3
terminals when the power is energized. If isolator should be used between indoor unit and outdoor unit, please use 3-pole type.

· Turn on the main power when the ambient temperature is - 20°C or higher.

· In below - 20°C condition, it needs at least 4hr stand by to operate in order to warm the electrical parts.

3 poles isolator

S1

S2

S3

A-Control
Indoor Unit

11

INDOOR-OUTDOOR CONNECTING CABLE (HRP200)

Cross section of cable Wire size (mm2) Number of wires Polarity L (m)*6

Round

Flat

Flat

Round

2.5 3

2.5 3

1.5 4

2.5 4

Clockwise : S1-S2-S3
*Pay attention to stripe of yellow and green

Not applicable
(Because center wire has no cover finish)

From left to right : S1-Open-S2-S3

Clockwise : S1-S2-S3-Open
*Connect S1 nad S3 to the opposite angle

Not applicable

(30)

*2

*5

(18)

*3

(30)

*4

*1 :Power supply cords of appliances shall not be lighter than design 60245 IEC or
227 IEC.

*2 :In case that cable with stripe of yellow and green is available.
*3 :In case of regular polarity connection (S1-S2-S3), wire size is 1.5 mm
*4 :In case of regular polarity connection (S1-S2-S3).
*5 :In the flat cables are connected as this picture, they can be used up to 30 m.

Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections).
Intermediate connections can lead to communication error if water enters the cables and causes insufficient insulation to ground or a poor electrical contact at
the intermediate connection point.

2

.

S1

S2

S3

*6 :Mentioned cable length is just a reference value.
It may be different depending on the condition of installation, humidity or
materials, etc.

(3C Flat cable × 2)

12

REFRIGERANT SYSTEM DIAGRAM7

PUHZ-HRP200YKA

<Reference> System example: Plate HEX (ACH50 * 2pcs) + FTC (TH1/2)

Thermistor TH1
(Outlet water)

Water OUT

Plate HEX

Water IN

Plate HEX

Thermistor TH2
(Liquid pipe)

Joint pipe

(Brazing)

Ball valve

Refrigerant
GAS pipe
connection
(1 inch)

Refrigerant
LIQUID pipe
connection
(3/8 inch)

Stop valve
(with service port)

Strainer
#50

Charge plug
(Low pressure)

LEV-B

Strainer
#100

Strainer
#100

Power
receiver

REV/V

Strainer
#100

Strainer
#100

Strainer
#100

P-sensor

Charge plug
(High pressure)

Muffler

L/P SW

LEV-C

COMP

H/P SW

Thermistor
TH32
(Outdoor pipe)

Thermistor TH4
(Discharge)

Injection port

HIC

Heat exchanger

Strainer
#100

LEV-A

Refrigerant flow in cooling
Refrigerant flow in heating

Thermistor TH7
(Outdoor)

Thermistor
TH6
(Outdoor
2-phase pipe)

Thermistor TH3
(Outdoor pipe)

Distributor

Strainer
#100

Symbol Part name Detail

COMP Compressor DC inverter scroll compressor (Mitsubishi Electric Corporation)

H/P SW High pressure switch (63H) For protection (OFF: 4.15MPa)

L/P SW Low pressure switch (63L) For protection (OFF: -0.03MPa)

REV/V Reversing (4-way) valve (21S4) Change the refrigerant circuit (Heating / Cooling) and for Defrosting

Charge plug Charge plug High pressure / Low pressure / For production test use

P-Sensor Pressure sensor (63HS) For calculation of the condensing temperature from high pressure

LEV-A Linear expansion valve -A Heating:Secondary LEV Cooling:Primary LEV

LEV-B Linear expansion valve -B Heating:Primary LEV Cooling:Secondary LEV

LEV-C Linear expansion valve -C For HIC (heating only)

TH32 Suction temperature thermistor For LEV control

TH3 Liquid temperature thermistor Heating:Evaporating temperature Cooling:Sub cool liquid temperature

TH4 Discharge temperature thermistor For LEV control and for compressor protection

TH6

2-phase pipe temperature thermistor

Outdoor 2-phase pipe temperature

TH7 Ambient temperature thermistor For fan control and for compressor frequency control

Power Receiver

Power Receiver For accumulation of refrigerant

HIC Heat interchange circuit For high heating capacity

Plate HEX Plate Heat Exchanger ACH50 - 50 Plates (Alfa Laval)

TH1

TH2

Outlet water temperature thermistor For fl ow temp. controller

Liquid pipe temperature thermistor For fl ow temp. controller

<Reference>

System example

13

TROUBLESHOOTING8

8-1. TROUBLESHOOTING

<Error code display by self-diagnosis and actions to be taken for service (summary)>

Present and past error codes are logged and displayed on the control board of outdoor unit. Actions to be taken for service,
which depends on whether or not the trouble is reoccurring at service, are summarized in the table below. Check the contents
below before investigating details.

Unit conditions at service Error code Actions to be taken for service (summary)

The trouble is reoccurring.

The trouble is not reoccurring.

Displayed

Not displayed

Logged

Not logged

Judge what is wrong and take a corrective action according to
“8-3. Self-diagnosis action table”.

Conduct troubleshooting and ascertain the cause of the
trouble.

Consider the temporary defects such as the work of

1

protection devices in the refrigerant circuit including
compressor, poor connection of wiring, noise and etc. Re­check the symptom, and check the installation environment,
refrigerant amount, weather when the trouble occurred,
matters related to wiring and etc.

Reset error code logs and restart the unit after fi nishing

2

service.

There is no abnormality in electrical component, controller

3

board, and etc.

Re-check the abnormal symptom.

1

Conduct troubleshooting and ascertain the cause of the

2

trouble.

Continue to operate unit for the time being if the cause is

3

not ascertained.

There is no abnormality concerning of parts such as

4

electrical component, controller board, and etc.

14

8-2. CHECK POINT UNDER TEST RUN

Before test run

• After installation of outdoor unit, piping work and electric wiring work, re-check that there is no water leakage, loosened con-

nections and incorrect polarity.

• Measure impedance between the ground and the power supply terminal block (L, N) on the outdoor unit by 500 V Megger
and check that it is 1.0 M or over.

• Turn on power supply 12 hours before test run in order to protect compressor.

• Make sure to read operation manual before test run. (Especially items to secure safety.)

Warning:

Do not use the system if the insulation resistance is less than 1.0 MΩ.

Caution:

Do not carry out this test on the control wiring (low voltage circuit) terminals.

Self-check

Turn on the power.

1

Press [CHECK] button twice.

2

Press [CHECK] button twice to fi nish self-check.

3

CHECK button B IC : Interface or FTC unit OC : Outdoor unit C Check code

A

Check code Symptom
P1 Flow water (TH1) sensor error
P2 Refrigerant liquid Pipe (TH2) sensor error
P6 Freezing/Overheating protection operation
P9 Actual tank temp. (TH5) sensor error
Fb FTC unit control system error (memory error, etc.)
E0~E5 Signal transmission failure between remote controller and FTC.
E6~EF Signal transmission failure between outdoor unit and FTC.
– – – – No trouble generated in the past.
FFFF No corresponding unit
U*, F* Outdoor unit failure. Refer to the outdoor unit wiring diagram.

TEMP.



ERROR CODE



ON/OFF



For description of each LED (LED1~5) provided on the FTC, refer to the following table.

LED 1 (Power for microprocessor) Indicates whether control power is supplied. Make sure that this LED is always lit.
LED 2 (Power for remote controller) Indicates whether power is supplied to the remote controller. This LED lights only in

the case of the FTC unit which is connected to the outdoor unit refrigerant address “0“.
LED 3 (Communication between FTC
and outdoor unit)

Indicates state of communication between the FTC and outdoor unit. Make sure that

this LED is always blinking.
LED 4 —
LED 5 —

15

8-3. SELF-DIAGNOSIS ACTION TABLE

<Abnormalities detected when the power is turned on>

Error Code

Abnormal point and detection method

1 No voltage is supplied to termi-

nal block(TB1) of outdoor unit.
a) Power supply breaker is

turned off.

b) Contact failure or disconnec-

tion of power supply
terminal
c) Open phase (L or N phase)

2 Electric power is not charged to

power supply terminal of out­door power circuit board.
a) Contact failure of power

supply terminal
b) Open phase on the outdoor

power circuit board

Case

Judgment and action

1 Check following items.

a) Power supply breaker
b) Connection of power supply terminal block
(TB1)
c) Connection of power supply terminal block
(TB1)

2 Check following items.

a) Connection of power supply terminal block
(TB1)
b) Connection of terminal on outdoor

power circuit board

None

F3

F5

—

63L connector open

Abnormal if 63L connector circuit is open
for 3 minutes continuously after power sup­ply.
63L: Low-pressure switch

63H connector open

Abnormal if 63H connector circuit is open
for 3 minutes continuously after power sup­ply.
63H: High-pressure switch

3 Electric power is not supplied

to outdoor controller circuit
board.
a) Disconnection of connector

(CNDC)

4 Disconnection of reactor (DCL

or ACL)

5 Disconnection of outdoor noise

filter circuit board or parts fail­ure in outdoor noise filter circuit
board

6 Defective outdoor power circuit

board

7 Defective outdoor controller
circuit board

1 Disconnection or contact failure

of 63L connector on outdoor
controller circuit board

2 Disconnection or contact failure

of 63L

3 63L is working due to refriger-

ant leakage or defective parts.

4 Defective outdoor controller
circuit board

1 Disconnection or contact failure

of 63H connector on outdoor
controller circuit board

2 Disconnection or contact failure

of 63H

3 63H is working due to defective

parts.

4 Defective outdoor controller
circuit board

3 Check connection of the connector (CNDC)

on the outdoor controller circuit board.

Check connection of the connector CNDC on

the outdoor noise filter. Refer to 8-7.

4 Check connection of reactor. (DCL or ACL)

5 a) Check connection of outdoor noise filter

circuit board.
b) Replace outdoor noise filter circuit board.

Refer to 8-7.

6 Replace outdoor power circuit board.

7 Replace controller board (When items above

are checked but the units can not be repaired).

1 Check connection of 63L connector on
outdoor controller circuit board.
Refer to 8-7.

2 Check the 63L side of connecting wire.

3 Check refrigerant pressure.

Charge additional refrigerant.
Check continuity by tester.
Replace the parts if the parts are defective.

4 Replace outdoor controller circuit board.

1 Check connection of 63H connector on

outdoor controller circuit board.
Refer to 8-7.

2 Check the 63H side of connecting wire.

3 Check continuity by tester.

Replace the parts if the parts are defective.
4 Replace outdoor controller circuit board.

F9

2 connector open

Abnormal if both 63H and 63L connector
circuits are open for three minutes continu­ously after power supply.

63H: High-pressure switch
63L: Low-pressure switch

1 Disconnection or contact failure

of connector (63H,63L) on

outdoor controller circuit board.
2 Disconnection or contact failure

of 63H, 63L

3 63H and 63L are working due

to defective parts.

4 Defective outdoor controller

board.

16

1 Check connection of connector (63H,63L) on
outdoor controller circuit board.
Refer to 8-7.
2 Check the 63H and 63L side of connecting

wire.

3 Check continuity by tester.
Replace the parts if the parts are defective.
4 Replace outdoor controller circuit board.