Mitsubishi PUHZ-HRP71VHA(2), PUHZ-HRP100VHA(2), PUHZ-HRP100YHA(2), PUHZ-HRP125YHA(2) Service Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

	September 2008
SERVICE MANUAL	No.OCH425
	REVISED EDTION-A

R410A

Outdoor unit

[model names]

PUHZ-HRP71VHA

PUHZ-HRP100VHA

PUHZ-HRP100YHA

PUHZ-HRP125YHA

PUHZ-HRP71VHA2

PUHZ-HRP100VHA2

PUHZ-HRP100YHA2

PUHZ-HRP125YHA2

[Service Ref.]

PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA PUHZ-HRP71VHA2

PUHZ-HRP100VHA2 PUHZ-HRP100YHA2 PUHZ-HRP125YHA2

Revison:

•PUHZ-HRP71/100VHA2 and PUHZ-HRP100/125YHA2 are added in REVISED EDITION-A.

•Some descriptions have been modified.

•Please void OCH425.

NOTE:

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

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

CONTENTS

1.TECHNICAL CHANGES································· 2

2.REFERENCE MANUAL·································· 2

3. SAFETY PRECAUTION ································· 3

4.FEATURES ····················································· 7

5.SPECIFICATIONS··········································· 8

6.DATA······························································· 9

7.OUTLINES AND DIMENSIONS···················· 12

8.WIRING DIAGRAM······································· 14

9.WIRING SPECIFICATIONS ·························· 18

10. REFRIGERANT SYSTEM DIAGRAM ········ 23

11.TROUBLESHOOTING ································ 25

12.FUNCTION SETTING ································· 83

13.MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ···· 90

14.EASY MAINTENANCE FUNCTION ········· 100

15. DISASSEMBLY PROCEDURE················· 105

PARTS CATALOG (OCB425)

PUHZ-HRP71VHA

PUHZ-HRP100VHA

PUHZ-HRP100YHA

PUHZ-HRP125YHA

1 TECHNICAL CHANGES

PUHZ-HRP 71VHA		PUHZ-HRP 71VHA2

PUHZ-HRP100VHA PUHZ-HRP100VHA2

•Add pressure sensor (63HS).

•Compressor (MC) has been changed.

ANB33FJCMT ANB33FJEMT

•Thermistor (Discharge / TH4) has been changed.

•Fan motors (MF1,2) have been changed.

•Fan grilles have been changed.

•Electrical parts have been changed.

Controller circuit board (C.B.), Power circuit board (P.B.),

Noise filter circuit board (N.F.) and active filter module (ACTM) (including P.B.)

PUHZ-HRP100YHA PUHZ-HRP100YHA2

PUHZ-HRP125YHA PUHZ-HRP125YHA2

•Add pressure sensor (63HS).

•Compressor (MC) has been changed.

ANB33FJBMT ANB33FJDMT

•Thermistor (Discharge / TH4) has been changed.

•Fan motors (MF1,2) have been changed.

•Fan grilles have been changed.

•Controller circuit board (C.B.) have been changed.

2			REFERENCE MANUAL
2-1. INDOOR UNIT SERVICE MANUAL
	Model name				Service Ref.	Service
						Manual No.
	PLA-RP35/50/60/100/125BA				PLA-RP35/50/60/100/125BA(1).UK/BA#2.UK	OCH412
	PLA-RP100/125BA2				PLA-RP100/125BA2.UK	OCB412
	PKA-RP60/100FAL				PKA-RP60/100FAL	OC331
	PKA-RP50FAL2				PKA-RP50FAL2
	PEAD-RP50/60/71/125EA				PEAD-RP50/60/71/125EA.UK	HWE05210
	PEAD-RP100EA2				PEAD-RP100EA2.UK
	PEAD-RP60/71/100GA				PEAD-RP60/71/100GA.UK	HWE05060
2-2. TECHNICAL DATABOOK
Manual No. OCS11

2

3 SAFETY PRECAUTION

3-1. ALWAYS OBSERVE FOR SAFETY

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

3-2. CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilizing refrigerant R410A

Use new refrigerant pipes.

In case of using the existing pipes for R22, be careful with the followings.

·Be sure to perform replacement operation before test run.

·Change flare nut to the one provided with this product. Use a newly flared pipe.

·Avoid using thin pipes.

Make sure that the inside and outside of refrigerant piping is clean and it has no contamination such as sulfur hazardous for use, oxides, dirt, shaving particles, etc.

In addition, use pipes with specified thickness.

Contamination inside refrigerant piping can cause deterioration of refrigerant oil etc.

Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before brazing. (Leave elbow joints, etc. in their packaging.)

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

Use ester oil, ether oil or alkylbenzene oil (small amount) as the refrigerant oil applied to flares and flange connections.

If large amount of mineral oil enters, that can cause deterioration of refrigerant oil etc.

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.

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		Flare tool
Charge hose		Size adjustment gauge
Gas leak detector		Vacuum pump adaptor
Torque wrench		Electronic refrigerant
		charging scale

Keep the tools with care.

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

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.

[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.

(4)When performing service, install a filter drier simultaneously. Be sure to use a filter drier for new 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.)

3

Unit

Gravimeter

[3] Service tools

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

No.	Tool name		Specifications
1	Gauge manifold	·Only for R410A
		·Use the existing fitting specifications. (UNF1/2)
		·Use high-tension side pressure of 5.3MPa·G or over.
2	Charge hose	·Only for R410A
		·Use pressure performance of 5.09MPa·G or over.
3	Electronic scale
4	Gas leak detector	·Use the detector for R134a, R407C or R410A.
5	Adaptor for reverse flow check	·Attach on vacuum pump.
6	Refrigerant charge base
7	Refrigerant cylinder	·Only for R410A	·Top of cylinder (Pink)
		·Cylinder with syphon
8	Refrigerant recovery equipment

[4] Refrigerant leakage detection function

This air conditioner can detect refrigerant leakage which may happen during a long period of use. In order to enable the leakage detection, settings are required to let the unit memorize the initial conditions(initial learning). Refer to 14-3. INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION FUNCTION.

4

3-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES

(1) Flowchart

Measure the existing pipe thickness and check for damage.

The existing pipe thickness meets specifications and the pipes are not damaged.

Check if existing air conditioner can operate.

The existing pipe thickness does not meet specifications or the pipes are damaged.

Existing air conditioner can operate.

Perform cooling operation for about 30 minutes and then do a pump down work.

Existing air conditioner cannot operate.

Use a refrigerant recovery equipment to recover the refrigerant.

+ In case existing pipes were used for gas or oil heat pump system,

be sure to clean the pipes for HRP71,100,125 models.

Disconnect existing air conditioner from piping.

Existing pipes can be reused.						Existing pipes cannot be
						reused. Use new pipes.
In case the unit is RP35/50			In case the unit is HRP71,
or RP60/71VHA2(1) which
			100, 125 which utilize
utilizes HAB oil.
			ester oil or ether oil.
Connect a new air conditioner.
			Connect a new air conditioner.
			Perform replacement operation.
			·When performing replacement operation, make sure that DIP SW8-2 on outdoor unit controller board is
			set to ON.
			+Chemical compounds containing chlorine left in existing pipes are collected by replace filter.
			●The air conditioner automatically performs cooling operation through replace filter for about 2 hours.

Connecting a new air conditioner

Flaring work should be done so that flare meets the dimension for R410A. Use flare nut provided with indoor and outdoor unit.

When using gas piping of :19.05mm for HRP100, 125.

Make sure that DIP SW8-1 on outdoor unit controller board is set to ON.This is to keep the pressure on pipes within permissible range.

●Use different diameter joint or adjust the piping size by brazing.

When using pipes larger than specified size for HRP71.

Make sure that DIP SW8-1 on outdoor unit controller board is set to ON.

This is to prevent oil flow ratio from lowering due to the decrease in flowing refrigerant. ●Use different diameter joint or adjust the piping size by brazing.

When existing pipes are specified size.

The pipes can be reused referring to TECHNICAL DATA BOOK (OCS11). ●Use different diameter joint or adjust the piping size by brazing.

* When using existing pipes for HRP71, 100, 125

Make sure that DIP SW8-2 on outdoor unit controller board is set to ON and perform replacement operation.

+Chemical compounds containing chlorine left in existing pipes are collected by replace filter.

●The air conditioner automatically performs cooling operation through replace filter for about 2 hours.

5

(2)Cautions for refrigerant piping work

New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is same as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working pressure of R410A is 1.6 time higher than that of R22, their sizes of flared sections and flare nuts are different.

1Thickness of pipes

Because the working pressure of R410A is higher compared to R22, be sure to use refrigerant piping with thickness shown below. (Never use pipes of 0.7mm or below.)

Diagram below: Piping diameter and thickness
Nominal	Outside	Thickness (mm)
dimensions(inch)	diameter (mm)	R410A	R22
1/4	6.35	0.8	0.8
3/8	9.52	0.8	0.8
1/2	12.70	0.8	0.8
5/8	15.88	1.0	1.0
3/4	19.05	—	1.0

2Dimensions of flare cutting and flare nut

The component molecules in HFC refrigerant are smaller compared to conventional refrigerants. In addition to that, R410A is a refrigerant, which has higher risk of leakage because its working pressure is higher than that of other refrigerants. Therefore, to enhance airtightness and intensity, flare cutting dimension of copper pipe for R410A have been specified separately from the dimensions for other refrigerants as shown below. The dimension B of flare nut for R410A also has partly been changed to increase intensity as shown below. Set copper pipe correctly referring to copper pipe flaring dimensions for R410A below. For 1/2 and 5/8 inch, the dimension B changes.

Use torque wrench corresponding to each dimension.

Dimension A
								Dimension B
Flare cutting dimensions			(mm)		Flare nut dimensions				(mm)
Nominal	Outside	Dimension A ( -+00.4 )			Nominal		Outside	Dimension B
dimensions(inch)	diameter	R410A	R22		dimensions(inch)		diameter	R410A	R22
1/4	6.35	9.1	9.0		1/4		6.35	17.0	17.0
3/8	9.52	13.2	13.0		3/8		9.52	22.0	22.0		+36.0mm for
1/2	12.70	16.6	16.2		1/2		12.70	26.0	24.0		indoor unit
5/8	15.88	19.7	19.4		5/8		15.88	29.0 +	27.0		of RP100,
3/4	19.05	—	23.3		3/4		19.05	-	36.0		125 and 140

3Tools 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?	Can R407C tools be used?
Gauge manifold	Air purge, refrigerant charge	Tool exclusive for R410A
Charge hose	and operation check	Tool exclusive for R410A
Gas leak detector	Gas leak check	Tool for HFC refrigerant
Refrigerant recovery equipment	Refrigerant recovery	Tool exclusive for R410A
Refrigerant cylinder	Refrigerant charge	Tool exclusive for R410A
Applied oil	Apply to flared section	Ester oil, ether oil and alky-		Ester oil, ether oil:
		lbenzene oil (minimum amount)		Alkylbenzene oil: minimum amount
Safety charger	Prevent compressor malfunction	Tool exclusive for R410A
	when charging refrigerant by
	spraying liquid refrigerant
Charge valve	Prevent gas from blowing out	Tool exclusive for R410A
	when detaching charge hose
Vacuum pump	Vacuum drying and air	Tools for other refrigerants can	(Usable if equipped	(Usable if equipped
	purge	be used if equipped with adop-	with adopter for rever-	with adopter for rever-
		ter for reverse flow check	se flow)	se flow)
Flare tool	Flaring work of piping	Tools for other refrigerants	(Usable by adjusting	(Usable by adjusting
		can be used by adjusting	flaring dimension)	flaring dimension)
		flaring dimension
Bender	Bend the pipes	Tools for other refrigerants can be used
Pipe cutter	Cut the pipes	Tools for other refrigerants can be used
Welder and nitrogen gas cylinder	Weld the pipes	Tools for other refrigerants can be used
Refrigerant charging scale	Charge refrigerant	Tools for other refrigerants can be used
Vacuum gauge or thermis-	Check the degree of vacuum. (Vacuum	Tools for other refrigerants
tor vacuum gauge and	valve prevents back flow of oil and refri-	can be used
vacuum valve	gerant to thermistor vacuum gauge)
Charging cylinder	Refrigerant charge	Tool exclusive for R410A

: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.

6

4 FEATURES

PUHZ-HRP71/100VHA	PUHZ-HRP71/100VHA2
PUHZ-HRP100/125YHA	PUHZ-HRP100/125YHA2

HIGH HEATING CAPACITY

Industry-first flash injection circuit is equipped, which enables to keep the equal capacity with the rating even when outside temperature is -15:.

HIGH SPEED HEATING START UP

The performance of heating start up is improved. Compared to RP type, Zubadan reduced the time for heating start up by about half. After starting operation, the airflow temperature goes up to 45: quickly in 10 minutes. With industry-first shorter and less frequent defrost, defrosting time is cut down by 15% compared to RP type and heating operation can continuously run for maximum 150 minutes.

WIDE HEATING RANGE

The heating range is expanded to -25: compared to RP type which is up to -20:.

	(kW)	Performance
	15	about 30%UP				HRP125
capacity						RP125	HRP100
	10					RP100
Heating							HRP71
						RP71
	0	-25	-20	-15	-10	-5	0

Outdoor W.B. temp.

When stabled,

hot air of 50

Heating capacity(Peak)

(kW)

15

10

0

HRP100

Outlet air temp.45

13kW

(Outlet air temp. 45 ) . 10min About

It doesn’t reach 50 when outside air temp. is too low,

+1

	Stable
	.
About	19 min

RP type:

Outlet air temp. 45

About 50% CUT

			5	10	15	20
0
				Elapsed time(min.)
+1 Condition
Room temp. 20			(D.B.)	Outdoor temp. 2	(D.B.)/1	(W.B.) : Unit HRP100, Hi notch
						(Indoor PKA type)

Expanded
Up to -25	-11~			RP type
	-20
	-25			HRP type

-25 -20 -15 -10 -5 0 Outdoor wet-bulb temperature

CHARGELESS SYSTEM

PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT. Max.30m(PUHZ-HRP71/100/125)

The refrigerant circuit with LEV(Linear Expansion Valve) and power receiver always control the optimal refrigerant level regardless of the length (30m max. and 5m min.) of piping. The additional refrigerant charging work during installation often causes problems. It is completely eliminated by chargelss system. This unique system improves the quality and reliability of the work done. It also helps to speed up the installation time.

REFRIGERANT LEAKAGE DETECTION FUNCTION

PUHZ-HRP·HA(2) can detect refrigerant leakage which may happen during a long period of use.

7

5 SPECIFICATIONS

Service Ref.
Mode
	Power supply (phase, cycle, voltage)
		Max. current		A
	External finish
	Refrigerant control
	Compressor
		Model
		Motor output		kW
		Starter type
		Protection devices
UNIT	Crankcase heater			W
OUTDOOR	Heat exchanger
	Defrost method
	Fan	Fan(drive) % No.
		Fan motor output		kW
		Airflow	*/min(CFM)
	Noise level		Cooling	dB
	Dimensions		Heating	dB
			W	mm(in.)
			D	mm(in.)
	Weight		H	mm(in.)
				kg(lbs)
	Refrigerant
		Charge		kg(lbs)
PIPING		Oil (Model)	Liquid	L
	Pipe size O.D.			mm(in.)
	outdoor unit		Gas	mm(in.)
REFRIGERANT			Piping length
	Connection method		Indoor side
			Outdoor side
	Between the indoor &		Height difference

Service Ref.
Mode
	Power supply (phase, cycle, voltage)
		Max. current		A
	External finish
	Refrigerant control
	Compressor
		Model
		Motor output		kW
		Starter type
		Protection devices
UNIT	Crankcase heater			W
OUTDOOR	Heat exchanger
	Defrost method
	Fan	Fan(drive) % No.
		Fan motor output		kW
		Airflow	*/min(CFM)
	Noise level		Cooling	dB
	Dimensions		Heating	dB
			W	mm(in.)
			D	mm(in.)
	Weight		H	mm(in.)
				kg(lbs)
	Refrigerant
		Charge		kg(lbs)
PIPING		Oil (Model)	Liquid	L
	Pipe size O.D.			mm(in.)
			Gas	mm(in.)
REFRIGERANT	Connection method		Indoor side
	outdoor unit		Piping length
			Outdoor side
	Between the indoor &		Height difference

PUHZ-HRP71/100VHA			PUHZ-HRP71/100VHA2
Cooling	Heating		Cooling	Heating
	Single 50Hz, 230V
		28
	Munsell 3Y 7.8/1.1
	Linear Expansion Valve
		Hermetic
ANB33FJCMT			ANB33FJEMT
		2.5
		Inverter
		HP switch
		LP switch
	Discharge thermo
		—
		Plate fin coil
0.086+0.086	Propeller fan % 2			0.074+0.074
		100(3,530)
52	Reverse cycle			51
53		950(37-3/8)		52
	330+30(13+1-3/16)
	1,350(53-1/8)
		120(265)
		R410A
		5.5(12.1)
		1.40(FV50S)
		9.52(3/8)
		15.88(5/8)
		Flared
		Flared
		Max. 30m
		Max. 75m

PUHZ-HRP100/125YHA			PUHZ-HRP100/125YHA2
Cooling	Heating		Cooling	Heating
	3phase, 50Hz, 400V
		14
	Munsell 3Y 7.8/1.1
	Linear Expansion Valve
		Hermetic
ANB33FJBMT			ANB33FJDMT
		2.5
		Inverter
		HP switch
		LP switch
	Discharge thermo
		—
		Plate fin coil
0.086+0.086	Propeller fan % 2			0.074+0.074
		100(3,530)
52	Reverse cycle			51
53		950(37-3/8)		52

330+30(13+1-3/16) 1,350(53-1/8)

134(295)

R410A

5.5(12.1)

1.40(FV50S)

9.52(3/8)

15.88(5/8) Flared Flared Max. 30m Max. 75m

8

6		DATA
6-1. REFILLING REFRIGERANT CHARGE (R410A : kg)
Service Ref.						Piping length (one way)								Factory
				10m	20m	30m		40m		50m	60m	75m		charged
PUHZ-HRP71VHA(2)				5.1	5.3	5.5	6.1			6.7	7.3	7.9		5.5
PUHZ-HRP100VHA(2)				5.1	5.3	5.5	6.1			6.7	7.3	7.9		5.5
PUHZ-HRP100YHA(2)
PUHZ-HRP125YHA(2)				5.1	5.3	5.5	6.1			6.7	7.3	7.9		5.5
								For pipe longer than 30m, additional charge
								is required.

6-2. COMPRESSOR TECHNICAL DATA

			(at 20	)
Service Ref.		PUHZ-HRP71VHA	PUHZ-HRP100YHA
		PUHZ-HRP100VHA	PUHZ-HRP125YHA
Compressor model		ANB33FJCMT	ANB33FJBMT
Winding	U-V	0.188	0.302
	U-W	0.188	0.302
Resistance
( )
	W-V	0.188	0.302
			(at 20	)
Service Ref.		PUHZ-HRP71VHA2	PUHZ-HRP100YHA2
		PUHZ-HRP100VHA2	PUHZ-HRP125YHA2
Compressor model		ANB33FJEMT	ANB33FJDMT
Winding	U-V	0.188	0.302
	U-W	0.188	0.302
Resistance
( )
	W-V	0.188	0.302

9

6-3. NOISE CRITERION CURVES

	PUHZ-HRP71VHA						MODE SPL(dB)			LINE	PUHZ-HRP71VHA2						MODE SPL(dB)			LINE
	PUHZ-HRP100VHA						COOLING		52		PUHZ-HRP100VHA2						COOLING		51
	PUHZ-HRP100YHA						HEATING		53		PUHZ-HRP100YHA2						HEATING		52
	PUHZ-HRP125YHA										PUHZ-HRP125YHA2
	μbar)	90									μbar)	90
	dB = 0.0002	80									dB = 0.0002	80
		70								NC-70		70								NC-70
	dB (0										dB (0
		60										60
	LEVEL,									NC-60	LEVEL,
																				NC-60
	PRESSURE	50									PRESSURE	50
										NC-50										NC-50
		40										40
										NC-40										NC-40
	SOUND										SOUND
		30										30
										NC-30										NC-30
	BAND										BAND
		20	APPROXIMATE									20	APPROXIMATE
	OCTAVE		THRESHOLD OF								OCTAVE		THRESHOLD OF
										NC-20										NC-20
			HEARING FOR										HEARING FOR
			CONTINUOUS										CONTINUOUS
		10	NOISE									10	NOISE
			63	125	250	500	1000	2000	4000	8000			63	125	250	500	1000	2000	4000	8000
				BAND CENTER FREQUENCIES, Hz										BAND CENTER FREQUENCIES, Hz

MICROPHONE

1m

UNIT

1.5m

GROUND

10

6-4. STANDARD OPERATION DATA

		Representative matching		PEAD-RP71EA		PEAD-RP100EA2		PEAD-RP125EA
	Mode			Cooling	Heating	Cooling	Heating	Cooling	Heating
	Total	Capacity	W	7,100	8,000	10,000	11,200	12,500	14,000
		Input	kW	2.15	2.34	3.06	3.10	3.89	3.88

		Indoor unit			PEAD-RP71EA			PEAD-RP100EA2		PEAD-RP125EA
		Phase , Hz				1 , 50		1 , 50			1 , 50
circuit
		Voltage		V		230		230			230
Electrical		Current		A	1.55		1.55	2.62	2.62	2.62		2.62
		Outdoor unit			PUHZ-HRP71VHA(2)			PUHZ-HRP100YHA(2)		PUHZ-HRP125YHA(2)
								PUHZ-HRP100VHA(2)
		Phase , Hz				1 , 50		1/3 , 50			3 , 50
		Voltage		V		230		230/400			400
		Current		A	8.09		8.94	11.10/3.69	11.28/3.74	4.92		4.91
		Discharge pressure		MPa	2.46		2.71	2.61	2.22	2.79		2.70
circuit
		Suction pressure		MPa	0.92		0.76	0.97	0.72	0.89		0.70
Refrigerant		Discharge temperature			68		74	68	65	72		76
		Condensing temperature			42		43	44	37	47		44
		Sunction temperature			14		5	13	4	8		1
		Ref. pipe length		m	7.5		7.5	7.5	7.5	7.5		7.5
side		Intake air temperature	D.B.		27		20	27	20	27		20
			W.B.
Indoor					19		15	19	15	19		15
		Discharge air temperature	D.B.		15		38	16	35	15		39
Outdoor side			W.B.		24		6	24	6	24		6
		Intake air temperature	D.B.		35		7	35	7	35		7
		SHF			0.85		—	0.89	—	0.85		—
		BF			0.13		—	0.18	—	0.09		—

The unit of pressure has been changed to MPa based on international SI system. The conversion factor is : 1(MPa)=10.2(kgf/cm2)

11

10m

12

1 FREE SPACE (Around the unit)

The diagram below shows a basic example.

Explantion of particular details is given in the installation manuals etc.

		FREE		150mm
Over			Over
		Over
		1000mm		1
				0mm
Ove	r

2 SERVICE SPACE

Dimensions of space needed for service access are shown in the below diagram.

	Over 150
Over	Over 500
10
Service space	Over
	500

3 FOUNDATION BOLTS

Please secure the unit firmly with 4 foundation (M10) bolts. (Bolts and washers must be purchased locally.)

<Foundation bolt height>

than	30
Less		FOUNDATION

4 PIPING-WIRING DIRECTIONS

Piping and wiring connections can be made from 4 directions: front, right, rear and below.

Rear Air Intake

Side Air Intake

Example of Notes

···Refrigerant GAS pipe connction (FLARE)W15.88(5/8 inch)···Refrigerant LIQUID pipe connection (FLARE)W 9.52(3/8 inch)

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

Handle for moving

Air intake

Piping Knockout Hole Details

Handle for moving

Handle for moving

Power supply wiring hole (2-W27Knockout)

	Front trunking hole	40	45
	(Knockout)

		55
	W92	63
		73

	Front piping hole	92	27	23
	(Knockout)

65

Right piping hole (Knockout)

75

	63
27 92		19
23	73

92

	Power supply wiring hole
	(2-W27Knockout)
	Right trunking hole
	(Knockout)
	40		45	40
		55
W92	63			W
	73			92
55	23	27	65	92

Power supply wiring hole (2-W27Knockout)

Rear trunking hole (Knockout)

Rear piping hole (Knockout)

Side Air Intake

330

Rear Air Intake

175 600

Installation Feet

2-U Shaped notched holes (Foundation Bolt M10)

175

(19)

45

56

370

417

HRP71VHA-PUHZ HRP100VHA-PUHZ HRP100YHA-PUHZ HRP125YHA-PUHZ

30			66	42	53	28
		Air Discharge
			2-12 x 36 Oval holes
			(Foundation Bolt M10)
		950
Handle for moving	322	Earth terminal

Terminal connection

Left···Power supply wiring

Right···Indoor/Outdoor wiring

							Service panel
1350	635						Handle for moving
							A
	371						1
							+4431 +4471
							2
	23						Front piping cover
						71	Rear piping cover
							71
	219						Bottom piping hole
							(Knockout)
	81								Unit
	30	220	145	145	145	Drain hole		A
						(5-W33)
							HRP·VHA	1,079
									:
							HRP·YHA	930
									mm

DIMENSIONS AND OUTLINES 7

m

13

1 FREE SPACE (Around the unit)

The diagram below shows a basic example.

Explantion of particular details is given in the installation manuals etc.

		FREE		150mm
Over			Over
	10mm
Over	1000mm		Over
				10mm

2 SERVICE SPACE

Dimensions of space needed for service access are shown in the below diagram.

	Over 150
Over	Over 500
10
Service space	Over
	500

3 FOUNDATION BOLTS

Please secure the unit firmly with 4 foundation (M10) bolts. (Bolts and washers must be purchased locally.)

<Foundation bolt height>

than	30
Less		FOUNDATION

4 PIPING-WIRING DIRECTIONS

Piping and wiring connections can be made from 4 directions: front, right, rear and below.

Rear Air Intake

Side Air Intake

Example of Notes

···Refrigerant GAS pipe connction (FLARE)15.88(5/8 inch)

···Refrigerant LIQUID pipe connection (FLARE) 9.52(3/8 inch) 1 ···Indication of STOP VALVE connection location.

Handle for moving

Handle for moving

Handle for moving

Air intake

Piping Knockout Hole Details

Power supply wiring hole (2-27Knockout)

	Front trunking hole	40	45
	(Knockout)

			55
		92		63
				73
	Front piping hole
		92	27	23
	(Knockout)
			65

Right piping hole (Knockout)

75

		63
	27 92		19
	23	73

92

Power supply wiring hole
(2-	27Knockout)
	Right trunking hole
	(Knockout)
40			45	40
		55
92	63			92
	73
55	23	27	65	92

Power supply wiring hole (2-27Knockout)

Rear trunking hole (Knockout)

Rear piping hole (Knockout)

175

Side Air Intake

30 330

Handle for moving

322

Handle for moving

1350

635

371

23

81 219

30 220

Rear Air Intake	2-U Shaped notched holes
	(Foundation Bolt M10)
600	175
Installation Feet	(19)

45

56

370

417

	66	42	53	28
Air Discharge
	2-12 x 36 Oval holes
	(Foundation Bolt M10)

	950
	Earth terminal				Terminal connection
					Left ····Power supply wiring
					Right··· Indoor/Outdoor wiring
					Service panel
					Handle for moving
					1
					2	A
					443	447
					+1	+1
						Front piping cover
				71	Rear piping cover
					71
					Bottom piping hole
					(Knockout)
145	145	145	Drain hole
			(5-	33)
						HRP·VHA2

HRP·YHA2

HRP71VHA2-PUHZ HRP100VHA2-PUHZ HRP100YHA2-PUHZ HRP125YHA2-PUHZ

A
1,079	Unit
930
	mm :

8 WIRING DIAGRAM

PUHZ-HRP71VHA			PUHZ-HRP100VHA
	[LEGEND]
	SYMBOL	NAME		SYMBOL		NAME	SYMBOL		NAME
	TB1	Terminal Block<Power Supply, Indoor/Outdoor>		P.B.		Power Circuit Board		SW6	Switch<Model Select>
	MC	Motor for Compressor			TABU/V/W	Connection Terminal<U/V/W-Phase>		SW7	Switch<Function Setup>
	MF1, MF2	Fan Motor			TABS/T	Connection Terminal <L/N-Phase>		SW8	Switch<Function Setup>
	21S4	Solenoid Valve (Four-Way Valve)			TABP1/P2/P	Connection Terminal<DC Voltage>		SW9	Switch
	63H	High Pressure Switch			TABN1/N2/N	Connection Terminal<DC Voltage>		SWP	Switch<Pump Down>
	63L	Low Pressure Switch			DS2, DS3	Diode Bridge		CN31	Connector<Emergency Operation>
	SV	Solenoid Valve (Bypass Valve)			IPM	Power Module		SS	Connector<Connection for Option>
	TH3,TH32,TH33	Thermistor<Outdoor Pipe>		N.F.		Noise Filter Circuit Board		CNM	Connector<A-Control Service Inspection Kit>
	TH4	Thermistor<Discharge>			LI / LO			CNMNT	Connector
						Connection Terminal<L-Phase>
	TH6	Thermistor<Outdoor 2-Phase Pipe>			NI / NO	Connection Terminal<N-Phase>			<Connected to Optional M-NET Adapter Board>
	TH7	Thermistor<Outdoor>			EI, E2	Connection Terminal<Ground>		CNVMNT	Connector
	TH8	Thermistor<Heatsink>			52C	52C Relay			<Connected to Optional M-NET Adapter Board>
	LEV-A, LEV-B,LEV-C	Electronic Expansion Valve		C.B.		Controller Circuit Board		CNDM	Connector
	DCL	Reactor			SW1	Switch<Forced Defrost, Defect History Record			< Connected for Option (Contact Input)>
	ACTM	Active Filter Module				Reset, Refrigerant Address>		LED1,LED2	LED<Operation Inspection Indicators>
	CB	Main Smoothing Capacitor			SW4	Switch<Test Operation>		F1~F4	Fuse< T6.3AL250V>
	CY1,CY2	Capacitor			SW5	Switch<Function Switch>		X51,X52,X55	Relay

LEV-C	When M-NET adapter is connected

63H 63L

TH33 TH32 TH7 TH6 TH3 TH4

C. B.	t°	t°	t° t°	t°	t°
7	CNF1
MF1 1	(WHT) 1 3
MS		1 2	1 4	1 2	2 1
3~	TH33 TH32		TH7/6	TH3 TH4
	(YLW)	(BLK)	(RED)	(WHT) (WHT)

MF2	7	CNF2				1 3
	1	(WHT)		1	3	63L
MS						(RED)
				63H
3~				(YLW)
		3			CN2
	2	TRANS		1	(WHT) 7
	CNDC(PNK) 1
		F2		F3		7
			CNAC
			(WHT)

LEV-A		LEV-B	M
M		M			3
							5
			5
1	6	1	6	1	3	1	5
LEV-A		LEV-B		CNVMNT CNMNT
(WHT)	LED1	(RED)		(WHT)		(WHT)
LED2			1	CNM			14
			5	(WHT)
						CN52C
	CN4
						(RED)
(WHT)						1	2
	2	1
2			1 LEV-C 6			2
			(BLU)
		X52		X55

+1 SW5

SW4 SW8SWP

X51

					5			SW11
					CN5	SW1
			5		(WHT)
					1
					LED2			SW12
+1					LED3
					LED4
	SW7
SW6				2	M-NET SUBSTRATE
	SW9				CN2M		CND
SW1				1	(WHT)
						LED1	(WHT)
					LED5		3	1
CN31
CNDM	(WHT)	3	A B	S			3
		1
CN51 (WHT)		1			TB7
					M-NET
		5

CNS	F1	1	2	21S4 3	1	3	1 SV2	3	1 SS
(WHT)			F4
3	1	3	4	(GRN)			(BLU)		(WHT)
				21S4			SV
									WHT	BLU
										N. F.
									LO	NO
									52C	1	2
										2
										CN52C
	P. B.									(BLK)

4

1

DS3

TABT

BLU

CNAF

CNDC

3

(WHT)

2

7

6

(PNK)

TABS

WHT

1

1

DS2

CN2

1

IPM

3

(WHT)

CNAC2

7

TABP2

TABP1

RED

(RED)

TH8

1

CN5

RED

TABN1

BLK

BLK

t° 2

1

CN3

E2

2

(WHT)

U

2

2

(RED)

3

1

2

1

CN4

2

2

(WHT)

WHT

CN5

TABN

CB

TABU

TABV

TABW

TABN2

1

(RED)

RED

TABP

CNAC1

RED

WHT BLK

WHT

(WHT)

BLK

U V

W

LI

U

NI

U

EI

MS

3~

MC

RED

BLU

M-NET ADAPTER

SYMBOL	NAME
TB7	Terminal Block<M-net connection>
CN5	Connector<Transmission>
CND	Connector<Power Supply>
CN2M	Connector<M-NET communication>
SW1	Switch<Status of communication>
SW11	Switch<Address setting : 1st digit>
SW12	Switch<Address setting : 2nd digit>
LED1	LED<Power Supply : DC5V>
LED2	LED<Connection to Outdoor Unit>
LED3	LED<Transmission : Sending>
LED4	LED<Transmission : Recelving>
LED5	LED<Power Supply : DC12V>

DCL		4
	BLK	WHT
RED	L1	L2 1 P 6 RED
		N1
BLK		N2	WHT
		Io
	ACTM

RED	BLU	GRN/YLW YLW	ORN	BRN	CY1
					CY2
L	N	S1	S2	S3 TB1

+1MODEL SELECT

INDOOR	MODEL								SW6														SW5-6 +2
UNIT	71V	ON																				ON
POWER SUPPLY		OFF																				OFF
~/N 230V 50Hz			1 2 3 4 5 6 7 8																				1 2 3 4 5 6
	100V	ON																				ON
		OFF																				OFF
					1		2		3		4		5		6		7		8						1							3		4		5		6

+2. SW5 -1 to 5 : Function Switch

14

PUHZ-HRP100YHA

PUHZ-HRP125YHA

[LEGEND]

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

NAME

TB1

Terminal Block<Power Supply>

P.B.

Power Circuit Board

C.B.

Controller Circuit Board

TB2

Terminal Block<Indoor/Outdoor >

TB-U/V/W

Connection Terminal<U/V/W-Phase>

SW1

Switch<Forced Defrost, Defect History Record

MC

Motor for Compressor

TB-L1/L2/L3

Connection Terminal<L1/L2/L3-Power Supply>

Reset, Refrigerant Adress>

MF1, MF2

Fan Motor

TB-P2

Connection Terminal

SW4

Switch<Test Operation>

21S4

Solenoid Valve (Four-Way Valve)

TB-C1

Connection Terminal

SW5

Switch<Function Switch>

63H

High Pressure Switch

TB-N1

Connection Terminal

SW6

Switch<Model Select>

63L

Low Pressure Switch

X52A

52C Relay

SW7

Switch<Function Setup>

SV

Solenoid Valve (Bypass Valve)

N.F.

Noise Filter Circuit Board

SW8

Switch<Function Setup>

TH3,TH32,TH33

Thermistor<Outdoor Pipe>

LI1/LI2/LI3/NI

Connection Terminal<L1/L2/L3/N-Power Supply>

SW9

Switch

TH4

Thermistor<Discharge>

LO1/LO2/LO3/NO

Connection Terminal<L1/L2/L3/N-Power Supply>

SWP

Switch<Pump Down>

TH6

Thermistor<Outdoor 2-Phase Pipe>

GD1, GD3

Connection Terminal<Ground>

CN31

Connector<Emergency Operation>

TH7

Thermistor<Outdoor>

CONV.B.

Converter Circuit Board

LED1, LED2

LED<Operatiion Inspection Indicators>

LEV-A, LEV-B, LEV-C

Electronic Expansion Valve

L1-A1/IN

Connection Terminal<L1-Power Supply>

F1~F4

Fuse<T6.3AL250V>

ACL1~ACL4

Reactor

L1-A2/OU

Connection Terminal<L1-Power Supply>

CNM

Connector<A-Control Service Inspection Kit>

CB1, CB2

Main Smoothing Capacitor

L2-A2/OU

Connection Terminal<L2-Power Supply>

CNMNT

Connector

CK

Capacitor

L3-A2/OU

Connection Terminal<L3-Power Supply>

<Connect to Optional M-NET Adapter Board>

CY1, CY2

Capacitor

N-IN

Connection Terminal

CNVMNT

Connector

RS

Rush Current Protect Resistor

CK-OU

Connection Terminal

<Connect to Optional M-NET Adapter Board>

M-NET ADAPTER

CNDM

Connector

< Connection for Option(Contact Input)>

TB7

Terminal Block<M-NET connection >

SW12

Switch<Address setting. 2nd digit >

CN3S

Connector< Connection for Option>

CN5

Connector<Transmission>

LED1

LED<Power Supply: DC5V>

CN51

Connector< Connection for Option>

CND

Connector<Power Supply>

LED2

LED<Connection to Outdoor Unit>

SS

Connector< Connection for Option>

CN2M

Connector<M-NET communication>

LED3

LED<Transmission: Sending>

X51,X52,X55

Relay

SW1

Switch<Status of communication>

LED4

LED<Transmission: Receiving>

SW11

Switch<Address setting: 1st digit>

LED5

LED<Power Supply: DC12V>

63L

LEV-C

63H

M

TH33 TH32 TH7 TH6 TH3 TH4

LEV-A

LEV-B

When M-NET adapter is connected)

C . B .

t°

t°

t° t°

t°

t°

MF1

1

CNF1

7 (WHT) 1 3

1 2

1

4

1 2

2 1

MS

TH33

TH32

TH7/6

TH3

TH4

3~

(YLW)

(BLK)

(RED)

(WHT)

(WHT)

1

3

MF2

1

CNF2

63L

7

(WHT)

1 3

(RED)

MS

63H

3~

(YLW)

3

CN2

1

TRANS

1 (WHT) 7

2

CNDC

(PNK)

7

F2

CNAC

F3

(WHT)

CNS

F1

1

2

F4

(WHT)

3

1

3

4

BLK

BLU

	M			M		3		5
				5
									+1
1	6	1		6	1	3	1	5	SW5
LEV-A			LEV-B		CNVMNT CNMNT
(WHT)			(RED) 5		(WHT)			(WHT)	SWP SW8
LED2		LED1		1		CNM		14
					(WHT)				SW4
						CN4
				1 LEV-C 6		(WHT)
						1	2
				(BLU)	2
	X52			X55			X51
3	1 21S4 3			1 SV2	3		1	SS
	(GRN)			(BLU)				(WHT)

+1 SW6

SW1 CN31

CN51 CNDM CN3S (WHT) (WHT) (WHT)

5			5	CN5	(WHT)				SW11
							SW1
			1
SW7				LED2					SW12
				LED3
SW9				LED4
			M-NET SUBSTRATE
			LED5			(WHT)	LED1
			2	CN2M				CND
			1
								(WHT)
								3	1
1								3
3
	A	B	S
1
3			TB7
1			M-NET

5

21S4 SV

CY1

CY2

TB2

S1

S2

INDOOR

UNIT S3

BRN ORN YLW

	P . B . 3			7
	1		3	1	CN2	7
		CN7			(WHT)
	(WHT)					+		TB-W
2	2		CN4					TB-V
	1	(WHT)				--		TB-U
	2		CN5
2
	1	(RED)				+		TB-L3
								TB-L2
						--		TB-L1
	REDX52A
						+
RS							+
	RED					TB-P2	TB-C1	TB-N1
					RED	WHT	+CB2	BLK
						+CB1		CK

N . F .

BLK	W MC
WHT	V	MS
	U	3~

RED

BLK

WHT

RED

2

POWER SUPPLY 3N~

400V 50Hz

CNAC1
(WHT) 1	3

TB1		LI1
L1	RED
L2	WHT	LI2	U	U
L3	BLK	LI3		U
N	BLU	NI		U
	GRN/YLW
				U

	GD1	GD3
BLK		BLK

CNCT (RED) 1 2 1

		+	+
			U --
CNDC 1	3	3	1 CNL
(PNK)			(BLU)
2		WHT	WHT

+1MODEL SELECT

MODEL					SW6															SW5-6 +2
100Y	ON																		ON
	OFF																		OFF
		1		2		3		4		5		6		7		8				1		2		3		4		5
125Y	ON																		ON
	OFF																		OFF
		1		2		3		4		5		6		7		8				1		2		3		4		5

+2. SW5 -1 to 5 : Function Switch

BLK	BLK	WHT	WHT	RED	RED
	L3-OU	L3-A2	L2-OU	L2-A2	L1-OU	L1-A2

3	3		CONV.B.
	1CN7(WHT)
	L1-A1		L1-IN	N-IN	CK-OU
					BLK
CNAC2	RED	RED		BLU
3 (RED)				ACL1

LO1 RED

ACL2

LO2 WHT

ACL3

LO3 BLK

NO BLU

ACL4

15

PUHZ-HRP71VHA2 PUHZ-HRP100VHA2

	[LEGEND]
	SYMBOL	NAME	SYMBOL		NAME
	TB1	Terminal Block<Power Supply, Indoor/Outdoor>	P.B.		Power Circuit Board
	MC	Motor for Compressor		U/V/W	Connection Terminal<U/V/W-Phase>
	MF1, MF2	Fan Motor		LI	Connection Terminal <L-Phase>
	21S4	Solenoid Valve (Four-Way Valve)		NI	Connection Terminal<N-Phase>
	SV	Solenoid Valve (Bypass Valve)		DCL1, DCL2	Recator
	63H	High Pressure Switch		IGBT	Power Module
	63L	Low Pressure Switch		E1,E2,E3,E4	Connection Terminal (Ground)
	63HS	High Pressure Sensor	C.B.		Controller Circuit Board
	TH3	Thermistor<Liquid>		SW1	Switch<Forced Defrost, Defect History Record
	TH4	Thermistor<Discharge>			Reset, Refrigerant Address>
	TH6	Thermistor<2-Phase>		SW4	Switch<Test Operation>
	TH7	Thermistor<Ambient>		SW5	Switch<Function Switch>
	TH32	Thermistor<Suction>		SW6	Switch<Model Select>
	TH33	Thermistor<Ref. check>		SW7	Switch<Function Setup>
	LEV-A, LEV-B,LEV-C	Electronic Expansion Valve		SW8	Switch<Function Setup>
	DCL	Reactor		SW9	Switch
	CB	Main Smoothing Capacitor		SWP	Switch<Pump Down>
	CY1,CY2	Capacitor		CN31	Connector<Emergency Operation>

SYMBOL	NAME
SS	Connector<Connection for Option>
CNM	Connector<A-Control Service Inspection Kit>
CNDM	Connector
	< Connected for Option (Contact Input)>
LED1,LED2	LED<Operation Inspection Indicators>
F1~F4	Fuse< T6.3AL250V>
X51,X52,X55	Relay

M-NET ADAPTER

SYMBOL	NAME
TB7	Terminal Block<M-NET connection>
CN5	Connector<Transmission>
CND	Connector<Power Supply>
CN2M	Connector<M-NET communication>
SW1	Switch<Status of communication>
SW11	Switch<Address setting : 1st digit>
SW12	Switch<Address setting : 2nd digit>
LED1	LED<Power Supply : DC5V>
LED2	LED<Connection to Outdoor Unit>
LED3	LED<Transmission : Sending>
LED4	LED<Transmission : Recelving>
LED5	LED<Power Supply : DC12V>

LEV-C

When M-NET adapter is connected

									63H	63L
				TH33 TH32 TH7 TH6 TH3 TH4
		C . B .		t°	t°	t°	t°	t°	t°
MF1	1		CNF1
		7 (WHT)		1 3	1 2	1	4	1 2	2 1
MS
				TH33	TH32	TH7/6		TH3	TH4
3~				(YLW)	(BLK)	(RED)		(WHT) (WHT)		1	3
MF2	1		CNF2						1 3	63L
		7	(WHT)							(RED)
MS									63H
3~									(YLW)
			3						CN2
		2		TRANS
			1						1 (WHT)	7
			CNDC
			(PNK)
									7
			F2		CNAC				F3
					(WHT)

63HS							M
			LEV-A		LEV-B
			M		M			3		5
							5
1	3	1	LEV-A	6	1	6	1	3	1	5
63HS					LEV-B		CNVMNT CNMNT
(WHT)			(WHT)		(RED)		(WHT) (WHT)
LED2			LED1	5	1		CNM			14
							(WHT)
								CN52C
		CN4							(RED)
	(WHT)								1	3
		1	2	1	LEV-C 6
2					(BLU)					3
			X52				X55

							5			SW11
							CN5	SW1
				5			(WHT)
							1
							LED2			SW12
1		1					LED3
SW5		SW7					LED4
	SW6					2	M-NET SUBSTRATE
SWPSW4SW8	SW1	SW9					CN2M	LED1	CND
							LED5
						1	(WHT)		(WHT)
									3	1
		CN31
		CNDM WHT)(	3	A	B	S			3
			1
		CN51 (WHT)	1				TB7
							M-NET
			5
	X51

CNS	F1	1	2	21S4 3 1	3 1 SV2	3 1 SS
(WHT)			F4
3	1	3	4	(GRN)	(BLU)	(WHT)

21S4 SV

2

P. B.

2

CN52C

1

1

CN2

7

1

3

(RED)

CN4

(WHT)

(WHT)

52C

52C

BLK

2

E3

WHT

CNDC

N2

(PNK)

CB

3

1

CNAC2

(RED)

RED

P2

IGBT

1

3

BLK

E2

1

RED

3

WHT

CNAC1

(WHT)

E4

W V

U

DCL2

DCL1

EI

U

NI

U

LI

BLK WHT RED

DCL

BLK

BLK

W V

U

MS

3~

MC

GRN/YLW YLW

CY1

RED

BLU

ORN

BRN

MODEL

SW6

SW5-6 2

CY2

1MODEL SELECT

L

N

S1

S2

S3

TB1

71V

ON

ON

OFF

OFF

1 2 3 4 5 6 7 8

1 2 3 4 5 6

INDOOR

100V

ON

ON

OFF

OFF

UNIT

1 2 3 4 5 6 7 8

1 2 3 4 5 6

POWER SUPPLY

2. SW5 -1 to 5 : Function Switch

~/N 230V 50Hz

16

PUHZ-HRP100YHA2

PUHZ-HRP125YHA2

[LEGEND]

SYMBOL

NAME

SYMBOL

NAME

SYMBOL

NAME

TB1

Terminal Block<Power Supply>

P.B.

Power Circuit Board

C.B.

Controller Circuit Board

TB2

Terminal Block<Indoor/Outdoor >

TB-U/V/W

Connection Terminal<U/V/W-Phase>

SW1

Switch<Forced Defrost, Defect History Record

MC

Motor for Compressor

TB-L1/L2/L3

Connection Terminal<L1/L2/L3-Power Supply>

Reset, Refrigerant Adress>

MF1, MF2

Fan Motor

TB-P2

Connection Terminal

SW4

Switch<Test Operation>

21S4

Solenoid Valve (Four-Way Valve)

TB-C1

Connection Terminal

SW5

Switch<Function Switch>

SV

Solenoid Valve (Bypass Valve)

TB-N1

Connection Terminal

SW6

Switch<Model Select>

63H

High Pressure Switch

X52A

52C Relay

SW7

Switch<Function Setup>

63L

Low Pressure Switch

N.F.

Noise Filter Circuit Board

SW8

Switch<Function Setup>

63HS

High Pressure Sensor

LI1/LI2/LI3/NI

Connection Terminal<L1/L2/L3/N-Power Supply>

SW9

Switch

TH3

Thermistor<Liquid>

LO1/LO2/LO3/NO

Connection Terminal<L1/L2/L3/N-Power Supply>

SWP

Switch<Pump Down>

TH4

Thermistor<Discharge>

GD1, GD3

Connection Terminal<Ground>

CN31

Connector<Emergency Operation>

TH6

Thermistor<Outdoor 2-Phase Pipe>

CONV.B.

Converter Circuit Board

SS

Connector< Connection for Option>

TH7

Thermistor<Outdoor>

L1-A1/IN

Connection Terminal<L1-Power Supply>

LED1, LED2

LED<Operatiion Inspection Indicators>

TH32

Thermistor<Suction>

L1-A2/OU

Connection Terminal<L1-Power Supply>

CNM

Connector<A-Control Service Inspection Kit>

TH33

Thermistor<Ref. chech>

L2-A2/OU

Connection Terminal<L2-Power Supply>

CNDM

Connector

LEV-A, LEV-B, LEV-C

Electronic Expansion Valve

L3-A2/OU

Connection Terminal<L3-Power Supply>

< Connection for Option(Contact Input)>

ACL1~ACL4

Reactor

N-IN

Connection Terminal

F1~F4

Fuse<T6.3AL250V>

RS

Rush Current Protect Resistor

CK-OU

Connection Terminal

X51,X52,X55

Relay

CB1, CB2

Main Smoothing Capacitor

CK

Capacitor

63HS

LEV-C

M

63H 63L

TH33 TH32 TH7 TH6 TH3 TH4

LEV-A

LEV-B

When M-NET adapter is connected

MF1

MS 3~

MF2

MS 3~

TB2

S1

S2

INDOOR

UNIT S3

C . B .

1

1

2

CNS

(WHT) 3 1

YLW

ORN

BRN

M	M	3	5
t° t° t° t° t° t°		5

	CNF1
7 (WHT) 1 3		1 2	1 4	1 2	2 1
	TH33	TH32	TH7/6	TH3	TH4
	(YLW)	(BLK)	(RED)	(WHT) (WHT)		1	3
	CNF2				1 3	63L
7	(WHT)					(RED)
					63H
					(YLW)
	3				CN2
	TRANS			1	(WHT)	7
	1
	CNDC
	(PNK)
					7
	F2	CNAC			F3
		(WHT)
	F1	1	2		F4

3 4

											1	1
1	3	1	6	1	6	1	3	1	5	SW5	SW6	SW7
63HS		LEV-A		LEV-B		CNVMNT CNMNT
(WHT)		(WHT)		(RED)		(WHT)		(WHT)		SWP SW8
LED2		LED1	5	1		CNM		14			SW1	SW9
						(WHT)				SW4
		CN4										CN31
		(WHT)
		1	2
	2		1	LEV-C	6							CNDM (WHT)	1
				(BLU)									3
												CN51 (WHT)	1
			X52		X55					X51			5
		3	1 21S4 3		1 SV2			3		1	SS
			(GRN)			(BLU)				(WHT)

21S4 SV

P . B . 3

7

		1	3	1	CN2	7
		CN7			(WHT)
	(WHT)					+
2	2		CN4
	1	(WHT)				--
	2		CN5
2
	1	(RED)				+
	REDX52A					--
						+
RS
						+

TB-W	BLK	W	MC
TB-V	WHT	V	MS
	RED	U	3~
TB-U
TB-L3	BLK
TB-L2	WHT
TB-L1	RED

RED	TB-P2	TB-C1	TB-N1
RED	WHT	+CB2	BLK
	+CB1		CK

		5	CN5	(WHT)				SW11
5						SW1
		1
			LED2					SW12
			LED3
			LED4
		M-NET SUBSTRATE
		2	CN2M		(WHT)		CND
		1
						LED1	(WHT)
		LED5					3	1
							3
A	B	S
		TB7
		M-NET

1MODEL SELECT

MODEL			SW6												SW5-6 2
100Y	ON													ON
	OFF	1 2 3				5					8			OFF
				4				6		7					1		2			4			6
125Y	ON													ON
	OFF	1 2 3									8			OFF
				4		5		6		7					1		2			4			6

2. SW5 -1 to 5 : Function Switch

BLK	BLK	WHT	WHT	RED	RED
	L3-OU	L3-A2	L2-OU	L2-A2	L1-OU	L1-A2

3	3	(WHT)	CONV.B.
	1CN7

POWER SUPPLY 3N~

400V 50Hz

		N . F .
				CNAC1
TB1				(WHT) 1	3
		LI1
L1	RED
L2	WHT	LI2	U	U
L3	BLK	LI3		U
N	BLU	NI		U
	GRN/YLW
				U

	GD1	GD3
BLK		BLK

CNDC 1	3
(PNK)

2

		L1-A1
2
CNCT	CNAC2	RED
(RED) 1 2 1	3 (RED)
	LO1	RED
	LO2	WHT
	LO3	BLK
	NO	BLU

+

+

U --

3		1 CNL
		(BLU)
BRN	WHT	ACL4

L1-IN	N-IN	CK-OU
		BLK
RED	BLU

ACL1

ACL2

ACL3

M-NET ADAPTER

TB7	Terminal Block<M-NET connection >	SW12	Switch<Address setting. 2nd digit >
CN5	Connector<Transmission>	LED1	LED<Power Supply: DC5V>
CND	Connector<Power Supply>	LED2	LED<Connection to Outdoor Unit>
CN2M	Connector<M-NET communication>	LED3	LED<Transmission: Sending>
SW1	Switch<Status of communication>	LED4	LED<Transmission: Receiving>
SW11	Switch<Address setting: 1st digit>	LED5	LED<Power Supply: DC12V>

17

9 WIRING SPECIFICATIONS

9-1. FIELD ELECTRICAL WIRING (power wiring specifications)

Outdoor unit model

Outdoor unit power supply

Outdoor unit input capacity

Main switch (Breaker)

	% 2)	Outdoor unit power supply
	Wiring WireNo. size(mm	Remote controller-Indoor unit
		Indoor unit-Outdoor unit
		Indoor unit-Outdoor unit earth
	rating	Outdoor unit L-N (single)
		Outdoor unit L1-N, L2-N, L3-N (3 phase)
	Circuit	Indoor unit-Outdoor unit S1-S2
		Indoor unit-Outdoor unit S2-S3
		Remote controller-Indoor unit

		HRP71V, HRP100VHA	HRP100VHA2	HRP100, 125Y
		~/N (single), 50 Hz,	~/N (single), 50 Hz,	3N ~ (3phase), 50 Hz,
	*1	230 V	230 V	400 V
		32 A	40 A	16 A
	*2	3 % Min. 4	3 % Min. 6	5 % Min. 1.5
		3 % 1.5 (Polar)	3 % 1.5 (Polar)	3 % 1.5 (Polar)
	*2	1 % Min. 1.5	1 % Min. 1.5	1 % Min. 1.5
	*3	2 % 0.3 (Non-polar)	2 % 0.3 (Non-polar)	2 % 0.3 (Non-polar)
	*4	AC 230 V	AC 230 V	AC 230 V
	*4	AC 230 V	AC 230 V	AC 230 V
	*4	DC 24 V	DC 24 V	DC 24 V
	*4	DC 12 V	DC 12 V	DC 12 V

*1.	A breaker with at least 3 mm contact separation in each poles shall be provided. Use earth leakage breaker(NV).
	The breaker shall be provided to ensure disconnection of all active phase conductor of the supply.
*2.	Refer to 9-3.
*3.	The 10 m wire is attached in the remote controller accessory.
*4.	The figures 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 .

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

2.Power supply cables and Indoor/Outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flexible cable. (Design 60245 IEC 57)

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

Power supply
		Isolator		3 poles isolator
			S1			S1
A-Control			S2			S2	A-Control
Outdoor Unit							Indoor Unit
			S3			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 or higher.

In below -20 condition, it needs at least 4hr standby to operate in order to warm the electrical parts.

1:1 system

Electrical wiring

Synchronized twin system

Electrical wiring

• Synchronized twin

Outdoor

Indoor

Outdoor

Indoor

Indoor

unit

unit

unit

unit

unit

Unit

L

1

Remote

Unit

L

1

Remote

1

power

N

Indoor/outdoor

2

controller

power

N

Indoor/outdoor

2

controller

2

supply

supply

unit connection

unit connection

S1

cable

S1

S1

cable

S1

S1

Earth leakage breaker

Earth leakage breaker

S2

S2

S2

S2

S2

Wiring circuit breaker or

Wiring circuit breaker or

isolating switch

S3

S3

isolating switch

S3

S3

S3

18

9-2. SEPARATE INDOOR UNIT/ OUTDOOR UNIT POWER SUPPLIES

The following connection patterns are available.

The outdoor unit power supply patterns vary on models.

1:1 System

<For models without heater>

*The optional indoor power supply terminal kit is required.

	L	L
	N	N
	S1	S1
	S2	S2
	S3	S3
		1
		2

Outdoor unit power supplyEarth leakage breaker

Wiring circuit breaker or isolating switchOutdoor unit

Indoor unit/outdoor unit connecting cordsRemote controller

Indoor unitOption

Indoor unit power supply

* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.

Simultaneous twin system

<For models without heater>

* The optional indoor power supply terminal kits are required.

L		L		L
N		N		N
S1		S1		S1
S2		S2		S2
S3		S3		S3
		1		1
		2		2

Outdoor unit power supplyEarth leakage breaker

Wiring circuit breaker or isolating switchOutdoor unit

Indoor unit/outdoor unit connecting cordsRemote controller

Indoor unitOption

Indoor unit power supply

* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.

If the indoor and outdoor units have separate power supplies, refer to the table

below. If the optional indoor power supply terminal kit is used, change the indoor

If the indoor and

unit electrical box wiring referring to the figure in the right and the DIP switch

Connectors ( Inisial setting:

outdoor units have

settings of the outdoor unit control board.

Electric heater

for indoor unit power

separate power

Indoor unit specifications

(For models with

supplied from outdoor unit)

supplies, change the

heater)

connections of the

Indoor power supply terminal kit (option)

Required

L

BLUE BLUE

connectors as shown

Indoor unit electrical box connector con-

Required

N

in the following

nection change

YELLOW YELLOW

ORANGE

figure.

CND

CND

Label affixed near each wiring diagram

Required

Indoor unit

Electric heater

S1

for the indoor and outdoor units

control board

S2

(For models with

Outdoor unit DIP switch settings (when

ON

3

S3

heater)

Connectors

using separate indoor unit/outdoor unit

Indoor unit power supplied from outdoor unit

BLUE YELLOW

1

(SW8)

L

power supplies only)

OFF

2

(when shipped from factory)

N

CND

Set the SW8-3 to ON.

YELLOW BLUE

ORANGE

CND

* There are three types of labels (labels A, B, and C). Affix the appropriate labels to

S1

Indoor unit

control board

S2

the units according to the wiring method.

S3

Separate indoor unit/outdoor unit power

supplies

	Indoor unit model			RP35~125
	Indoor unit power supply			~/N (single), 50 Hz, 230 V
	Indoor unit input capacity		*1	16 A
	Main switch (Breaker)
	Wiring Wire No. % size (mm2)	Indoor unit power supply		2 %Min. 1.5
		Indoor unit power supply earth		1 %Min. 1.5
		Indoor unit-Outdoor unit	*2	2 %Min. 0.3
		Indoor unit-Outdoor unit earth		–
		Remote controller-Indoor unit	*3	2 % 0.3 (Non-polar)
	Circuit rating	Indoor unit L-N	*4	AC 230 V
		Indoor unit-Outdoor unit S1-S2	*4	–
		Indoor unit-Outdoor unit S2-S3	*4	DC24 V
		Remote controller-Indoor unit	*4	DC12 V

*1. A breaker with at least 3 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV). The breaker shall be provided to ensure disconnection of all active phase conductor of the supply.

*2. Max. 120 m

*3.The 10 m wire is attached in the remote controller accessory. Max. 500 m *4.The figures are NOT always against the ground.

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

2.Power supply cables and indoor unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flexible cable. (Design 60245 IEC 57)

3.Install an earth longer than other cables.

19

9-3. INDOOR – OUTDOOR CONNECTING CABLE

The cable shall not be lighter than design 60245 IEC or 60227 IEC.

	Outdoor power supply		Wire No. % Size ($)
		Max. 45m	Max. 50m	Max. 80m
	Indoor unit-Outdoor unit	3 % 1.5 (polar)	3 % 2.5 (polar)	3 % 2.5 (polar) and S3 separated
	Indoor unit-Outdoor unit earth	1 % Min. 1.5	1 % Min. 2.5	1 % Min. 2.5
	+ The max. cable length may vary depending on the condition of installation, humidity or materials, etc.
	Indoor/Outdoor separate		Wire No. % Size ($)
	power supply
			Max. 120m
	Indoor unit-Outdoor unit		2 % Min. 0.3
	Indoor unit-Outdoor unit earth			—

+ The optional indoor power supply terminal kit is necessary.

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

20

9-4. M-NET WIRING METHOD

(Points to notice)

(1)Outside the unit, transmission wires should stay away from electric wires in order to prevent electromagnetic noise from making an influence on the signal communication. Place them at intervals of more than 5cm. Do not put them in the same conduit tube.

(2)Terminal block (TB7) for transmission wires should never be connected to 220~240V power supply. If it is connected, electronic parts on M-NET P.C. board may burn out.

(3)Use 2-core x 1.25mm2 shield wire (CVVS, CPEVS) for the transmission wire. Transmission signals may not be sent or received normally if different types of transmission wires are put together in the same multi-conductor cable. Never do this because this may cause a malfunction.

	Group	Refrigerant	Refrigerant	Refrigerant
		address 00	address 00	address 00
	remote
		M-NET	M-NET	M-NET
	controller
	Power	address 01	address 02	address 03
	supply
	unit for
	transmission
	wire
		A-control	A-control	A-control
		remote	remote	remote
		controller	controller	controller

It would be ok if M-NET wire (non-polar, 2-cores) is arranged in addition to the wiring for A-control.

(4)Ground only one of any appliances through M-NET transmission wire (shield wire). Communication error may occur due to the influence of electromagnetic noise.

“Ed” error will appear on the LED display of outdoor unit. “0403” error will appear on the central-control remote controller.

Bad example (Multi spot grounding of shield wire)

	Central		Power		M-NET type		M-NET type		M-NET type
	remote		supply
					outdoor unit		outdoor unit		outdoor unit
	controller		appliance
M-NET transmission wire
	Good example 1 (Single spot grounding of shield wire)
	Central		Power		M-NET type		M-NET type		M-NET type
	remote		supply
					outdoor unit		outdoor unit		outdoor unit
	controller		appliance

M-NET transmission wire

Good example 2 (Single spot grounding of shield wire)

Central		Power		M-NET type		M-NET type
remote		supply
				outdoor unit		outdoor unit
controller		appliance

M-NET type outdoor unit

M-NET transmission wire

If there are more than 2 grounding spots on the shield wire, noise may enter into the shield wire because the ground wire and shield wire form one circuit and the electric potential difference occurs due to the impedance difference among grounding spots. In case of single spot grounding, noise does not enter into the shield wire because the ground wire and shield wire do not form one circuit.

To avoid communication errors caused by noise, make sure to observe the single spot grounding method described in the installation manual.

21

	M-NET wiring		M-NET
	(1)	Use 2-core x 1.25mm2 shield wire for electric wires.
		(Excluding the case connecting to system controller.)	terminal		Ground
			block
	(2)	Connect the wire to the M-NET terminal block. Connect one core of the			wire
		transmission wire (non-polar) to A(M1) terminal and the other to B(M2). Peel the
			A B		S
		shield wire, twist the shield part to a string and connect it to S terminal.
			Transmission		Shield
	(3)	In the system which several outdoor units are being connected, the terminal
			wire		part
		(A(M1), B(M2), S) on M-NET terminal block should be individually wired to the other

outdoor unit’s terminal, i.e. A(M1) to A(M1), B(M2) to B(M2) and S to S. In this case, choose one of those outdoor units and drive a screw to fix an ground wire on the plate as shown on the right figure.

9-4-1. M-NET address setting

In A-control models, M-NET address and refrigerant address should be set only for the outdoor unit. Similar to CITY MULTI system, there is no need to set the address of outdoor unit and remote controller. To construct a central control system, the setting of M-NET address should be conducted only upon the outdoor unit. The setting range should be 1 to 50 (the same as that of the indoor unit in CITY MULTI system), and the address number should be consecutively set in a same group.

Address number can be set by using rotary switches (SW11 for ones digit and SW12 for tens digit), which is located on the M-NET board of outdoor unit.

(Initial setting: all addresses are set to “0”.)

9-4-2. Refrigerant address setting

<Setting example> M-NET Address No.

SW11

ones

Switch digit setting SW12

tens digit

1

234
01	5
9	7	6
8
234
01	5
9	7	6
8

2

234
01	5
9	7	6
8
234
01	5
9	7	6
8

~

50

234
01	5
9	7	6
8
234
01	5
9	7	6
8

In case of multiple grouping system (multiple refrigerant circuits in one group), indoor units should be connected by remote controller wiring (TB5) and the refrigerant address needs to be set. Leave the refrigerant addresses to “00” if the group setting is not conducted. Set the refrigerant address by using DIP SW1-3 to -6 on the outdoor controller board. [Initial setting: all switches are OFF. (All refrigerant addresses are “00”.)]

			ON								ON								ON								ON								ON								ON								ON								ON
			OFF								OFF								OFF								OFF								OFF								OFF								OFF								OFF
Refrigerant				1	2	3	4	5	6			1	2	3	4	5	6			1	2	3	4	5	6			1	2	3	4	5	6			1	2	3	4	5	6			1	2	3	4	5	6			1	2	3	4	5	6			1	2	3	4	5	6
						0								1								2								3								4								5								6								7
address
			ON								ON								ON								ON								ON								ON								ON								ON
			OFF								OFF								OFF								OFF								OFF								OFF								OFF								OFF
				1	2	3	4	5	6			1	2	3	4	5	6			1	2	3	4	5	6			1	2	3	4	5	6			1	2	3	4	5	6			1	2	3	4	5	6			1	2	3	4	5	6			1	2	3	4	5	6
						8								9								10								11								12								13								14								15

9-4-3. Regulations in address settings

In case of multiple grouping system, M-NET and refrigerant address settings should be done as explained in the above section. Set the lowest number in the group for the outdoor unit whose refrigerant address is “00” as its M-NET address.

	Group A	Group B		Group C
System	Refrigerant	Refrigerant	Refrigerant	Refrigerant
	address 00	address 00	address 01	address 00
controller	M-NET	M-NET	M-NET	M-NET
Power	address 01	address 02	address 03	address 04
supply
unit for
transmission			TB5
wire
	A-control	A-control		A-control
	remote	remote		remote
	controller	controller		controller

w Refrigerant addresses can be overlapped if they are in the different group.

		Group A			Group B
	System	Refrigerant	Refrigerant	Refrigerant	Refrigerant	Refrigerant
		address 00	address 01	address 00	address 01	address 02
	controller
		M-NET	M-NET	M-NET	M-NET	M-NET
	Power	address 01	address 02	address 04	address 03	address 05
	supply
	unit for
	transmission			TB5
	wire
		A-control		A-control
		remote		remote
		controller		controller

wIn group B, M-NET address of the outdoor unit whose refrigerant address is “00” is not set to the minimum in the group. As “3” is right for this situation, the setting is wrong. Taking group A as a good sample, set the minimum M-NET address in the group for the outdoor unit whose refrigerant address is “00”.

22

10 REFRIGERANT SYSTEM DIAGRAM

PUHZ-HRP71VHA		PUHZ-HRP100VHA		PUHZ-HRP100YHA			PUHZ-HRP125YHA
PUHZ-HRP71VHA2		PUHZ-HRP100VHA2		PUHZ-HRP100YHA2			PUHZ-HRP125YHA2
					High pressure sensor (63HS)		Thermistor TH7
					(only for HRP·HA2) Heat exchanger		(Outdoor)
							Thermistor
	Ball valve		Solenoid valve				TH6
			(Four-way valve)				(Outdoor
Refrigerant							2-phase pipe)
GAS pipe	Strainer
connection
	#50		Charge plug
(5/8 inch)							Thermistor TH3
			(High pressure)
							(Outdoor pipe)
	Charge plug		Muffler		High pressure		Distributor
	(Low pressure)
			Low pressure		switch 63H
			switch 63L		Thermistor		Thermistor TH33
							(Outdoor pipe)
					TH32
					(Outdoor pipe)	Strainer
			Strainer		Thermistor TH4	#100
			#100
					(Discharge)		Bypass

valve

			Strainer	Strainer		Linear expansion valve A
			#100	#100			Replace
		Linear
						Injection port	filter
		expansion valve B		Power	Compressor
				receiver
Refrigerant						Restrictor	Strainer
LIQUID pipe			Strainer	Linear		valve	#100
connection					Heat interchange circuit
(3/8 inch)	Stop valve		#100	expansion valve C
	(with service port)

Refrigerant flow in cooling

Refrigerant flow in heating

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10-1. Refrigerant recovering (pump down)

Perform the following procedures to recover the refrigerant when moving the indoor unit or the outdoor unit. 1Turn on the power supply (circuit breaker).

wWhen power is supplied, make sure that “CENTRALLY CONTROLLED” is not displayed on the remote controller. If “CENTRALLY CONTROLLED” is displayed, the refrigerant recovering (pump down) cannot be completed normally.

2After the liquid stop valve is closed, set the SWP switch on the control board of the outdoor unit to ON. The compressor (outdoor unit) and fans (indoor and outdoor units) start operating and refrigerant recovering operation begins. LED1 and LED2 on the control board of the outdoor unit are lit.

wSet the SWP switch (push-button type) to ON in order to perform refrigerant recovering operation only when the unit is stopped. However, refrigerant recovering operation cannot be performed until compressor stops even if the unit is stopped. Wait 3 minutes until compressor stops and set the SWP switch to ON again.

3Because the unit automatically stops in about 2 to 3 minutes after the refrigerant recovering operation (LED1 is not lit and LED2 is lit), be sure to quickly close the gas stop valve.

wIn case the outdoor unit is stopped when LED1 is lit and LED2 is not lit, open the liquid stop valve completely, and then repeat step 2 3 minutes later.

wIf the refrigerant collecting operation has been completed normally (LED1 is not lit and LED2 is lit), the unit will remain stopped until the power supply is turned off.

4Turn off the power supply (circuit breaker).

10-2. Unit replacement operation

When reusing the existing pipes that carried R22 refrigerant for the HRP71, HRP100 and HRP125 models, replacement operation must be performed before performing a test run.

1If new pipes are used, these procedures are not necessary.

2During replacement operation, “C5” is displayed on “A-Control Service Tool(PAC-SK52ST)”.

Replacement operation procedures

1Turn on the power supply.

2Set DIP switch SW8-2 on the control board of the outdoor unit to ON to start replacement operation.

•The replacement operation is performed using the cooling system. Cool air will flow from the indoor unit during the replacement operation.

•During the replacement operation, TEST RUN is displayed on the remote controller and LED1 (green) and LED2 (red) on the control board of the outdoor unit blink together.

3Replacement operation requires at least 2 hours to complete.

•After setting switch SW8-2 to ON, the unit automatically stops after 2 hours.

•Replacement operation can be performed repeatedly by setting switch SW8-2 from OFF to ON. Make sure to perform the operation more than 2 hours. (If the operation is performed less than 2 hours, the existing pipes cannot be cleaned enough and the unit may be damaged.)

•If replacement operation is performed over 2 hours, this action is recorded into nonvolatile memory of control board. 4Set switch SW8-2 to OFF. (Replacement operation is completed.)

wThe unit can be operated normally by remote controller even if SW8-2 remains ON.

wIf the indoor temperature is less than 15:, the compressor will operate intermittently but the unit is not faulty.

10-3. Start and finish of test run

•Operation from the indoor unit

Execute the test run using the installation manual for the indoor unit.

•Operation from the outdoor unit

By using the DIP switch SW4 on the control board of outdoor unit, test run can be started and finished, and its operation mode (cooling/heating) can be set up.

1Set the operation mode (cooling/heating) using SW4-2.

2Turn on SW4-1 to start test run with the operation mode set by SW4-2. 3Turn off SW4-1 to finish the test run.

•There may be a faint knocking sound around the machine room after power is supplied, but this is no problem with product because the linear expansion pipe is just moving to adjust opening pulse.

•There may be a knocking sound around the machine room for several seconds after compressor starts operating, but this is no problem with product because the check valve itself generates the sound because pressure difference is small in the refrigerant circuit.

<SW4>

ON OFF

1 2

Stop OperationCooling Heating

Note:

The operation mode cannot be changed by SW4-2 during test run. (To change test run mode, stop the unit by SW4-1, change the operation mode and restart the test run by SW4-1.)

24

11 TROUBLESHOOTING

11-1. 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 wired remote controller and 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)
	Displayed	Judge what is wrong and take a corrective action according
		to “11-4. Self-diagnosis action table”.
The trouble is reoccurring.
	Not displayed	Conduct troubleshooting and ascertain the cause of the
		trouble according to “11-5. Troubleshooting by inferior
		phenomena”.
		Consider the temporary defects such as the work of
		protection devices in the refrigerant circuit including
		compressor, poor connection of wiring, noise and etc.
		Re-check the symptom, and check the installation
		environment, refrigerant amount, weather when the
	Logged	trouble occurred, matters related to wiring and etc.
		Reset error code logs and restart the unit after finishing
		service.
		There is no abnormality in electrical component,
		controller board, remote controller and etc.
The trouble is not reoccurring.
		Re-check the abnormal symptom.
		Conduct trouble shooting and ascertain the cause of the
		trouble according to “11-5. Troubleshooting by inferior
	Not logged	phenomena”.
		Continue to operate unit for the time being if the cause
		is not ascertained.
		There is no abnormality concerning of parts such as
		electrical component, controller board, remote controller
		and etc.

11-2. CHECK POINT UNDER TEST RUN

(1) Before test run

•After installation of indoor and outdoor units, piping work and electric wiring work, re-check that there is no refrigerant leakage, loosened connections and incorrect polarity.

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

wDon’t use 500V Megger to indoor/outdoor connecting wire terminal block (S1, S2, S3) and remote controller terminal block (1, 2). This may cause malfunction.

•Make sure that test run switch (SW4) is set to OFF before turning on power supply.

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

•For specific models which requires higher ceiling settings or power failure automatic recovery, make proper changes of set-

tings referring to the description of “Selection of Functions through Remote Controller”. Make sure to read operation manual before test run. (Especially items to secure safety.)

25

"TEST RUN" and the currently selected operation mode are displayed altemately.

Displays the remaining test run time.

[TEST] button

Pipe (liquid) temperature

	Operating procedures	While the room temperature display on the remote
		controller is “PLEASE WAIT”, the remote controller is disabled.
	1. Turn on the main power supply.	Wait until “PLEASE WAIT” disappears before using remote controller.
		“PLEASE WAIT” appears for about 2 minutes after power
		supply is turned on. +1
	2. Press TEST button twice.	The		appears on the screen.
			TEST RUN
	3. Press OPERATION SWITCH	Cooling mode: Check if cool air blows and water is drained.
		Heating mode: Check if warm air blows. (It takes a little
	button.
			while until warm air blows.)
	4. Press AIR DIRECTION button.	Check for correct motion of auto-vanes.
	5. Check the outdoor unit fan for	The outdoor unit features automatic capacity control to
	correct running.	provide optimum fan speeds. Therefore, the fan keeps
		running at a low speed to meet the current outside air
		condition unless it exceeds its available maximum power.
		Then, in actuality, the fan may stop or run in the reverse
		direction depending on the outside air, but this does not
		mean malfunction.

6.Press the ON/OFF button to reset the test run in progress.

7.Register the contact number.

•In case of test run, the OFF timer will be activated, and the test run will automatically stop after 2 hours.

•The room temperature display section shows the pipe temperature of indoor units during the test run.

•Check that all the indoor units are running properly in case of simultaneous twin operation. Malfunctions may not be displayed regardless of incorrect wiring.

w1 After turning on the power supply, the system will go into startup mode, “PLEASE WAIT” will blink on the display section of the room temperature, and lamp(green) of the remote controller will flash.

As to INDOOR BOARD LED, LED1 will be lit up, LED2 will either be lit up in case the address is 0 or turned off in case the address is not 0. LED3 will blink.

As to OUTDOOR BOARD LED, LED1(green) and LED2(red) will be lit up. (After the startup mode of the system finishes, LED2(red) will be turned off.)

In case OUTDOOR BOARD LED is digital display, — and — will be displayed alternately every second.

•If one of the above operations doesn’t function correctly, the causes written below should be considered. Find causes from the symptoms.

The below symptoms are under test run mode. “startup” in the table means the display status of w1 written above.

	Symptoms in test run mode		Cause
	Remote Controller Display	OUTDOOR BOARD LED Display
		< > indicates digital display.
	Remote controller displays “PLEASE	After “startup” is displayed, only	• After power is turned on, “PLEASE WAIT” is displayed for 2
	WAIT”, and cannot be operated.	green lights up. <00>	minutes during system startup. (Normal)
		After “startup” is displayed,	• Incorrect connection of outdoor terminal block (L1, L2, L3 and
		green(once) and red(once) blink
	After power is turned on, “PLEASE WAIT”	alternately. <F1>	S1, S2, S3.)
	is displayed for 3 minutes, then error code
		After “startup” is displayed,
	is displayed.	green(once) and red(twice) blink	• Outdoor unit’s protection device connector is open.
		alternately. <F3, F5, F9>
		After “startup” is displayed,	• Incorrect wiring between the indoor and outdoor unit (Polarity
	No display appears even when remote	green(twice) and red(once) blink	is wrong for S1, S2, S3.)
		alternately. <EA. Eb>	• Remote controller transmission wire is short.
	controller operation switch is turned on.
		After “startup” is displayed, only	• There is no outdoor unit of address 0.
	(Operation lamp does not light up.)
			(Address is other than 0.)
		green lights up. <00>
			• Remote controller transmission wire is open.
	Display appears but soon disappears	After “startup” is displayed, only	• After canceling function selection, operation is not possible for
	even when remote controller is operated.	green lights up. <00>	about 30 seconds. (Normal)

w Press the remote controller’s CHECK button twice to perform self-diagnosis. See the table below for the contents of LCD display.

LCD	Contents of inferior phenomena	LCD		Contents of inferior phenomena
P1	Abnormality of room temperature thermistor	U1~UP	Malfunction outdoor unit
P2	Abnormality of pipe temperature thermistor/Liquid	F3~F9	Malfunction outdoor unit
P4	Abnormality of drain sensor/ Float switch connector open	E0~E5	Remote controller transmitting error
P5	Drain overflow protection is working.	E6~EF	Indoor/outdoor unit communication error
P6	Freezing/overheating protection is working.	----	No	error history
P8	Abnormality of pipe temperature	FFFF	No applied unit
P9	Abnormality of pipe temperature thermistor/Cond./Eva	PA	Forced compressor stop(due to water leakage abnormality)
Fb	Abnormality of indoor controller board

See the table below for details of the LED display (LED 1, 2, 3) on the indoor controller board.

	LED1 (microcomputer power supply)	Lits when power is supplied.
	LED2 (remote controller)	Lits when power is supplied for wired remote controller.
		The indoor unit should be connected to the outdoor unit with address “0” setting.
	LED3 (indoor/outdoor communication)	Blinks when indoor and outdoor unit are communicating.

26

TEST RUN

ON/OFF	TEMP
FAN	AUTO STOP
MODE VANE	AUTO START

,

CHECK LOUVER h

TEST RUN	min
SET	RESET CLOCK

Test run [for wireless remote controller]

Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500V Megger and check that it is equal to or greater than 1.0M".

1 Turn on the main power to the unit.

2Press the TEST RUN button twice continuously.

(Start this operation from the status of remote controller display turned off.)

A TEST RUN and current operation mode are displayed.

3Press the MODE ( ) button to activate COOL mode, then check whether cool air is blown out from the unit.

4Press the MODE ( ) button to activate HEAT mode, then check whether warm air is blown out from the unit.

5 Press the FAN button and check whether strong air is blown out from the unit.

6Press the VANE button and check whether the auto vane operates properly.

7 Press the ON/OFF button to stop the test run.

Note:

•Point the remote controller towards the indoor unit receiver while following steps 2 to 7.

•It is not possible to run in FAN, DRY or AUTO mode.

27

11-3. HOW TO PROCEED “SELF-DIAGNOSIS”

11-3-1. When a Problem Occurs During Operation

If a problem occurs in the air conditioner, the indoor and outdoor units will stop, and the problem is shown in the remote controller display.

[CHECK] and the refrigerant address are displayed on the temperature display, and the error code and unit number are

displayed alternately as shown below. (If the outdoor unit is malfunctioning, the unit number will be “00”.)

In the case of group control, for which one remote controller controls multiple refrigerant systems, the refrigerant address and error code of the unit that first experienced trouble (i.e., the unit that transmitted the error code) will be displayed.

To clear the error code, press the

ON/OFF button.

(Alternating Display)

Error code (2 or 4 digits)

Address (3 digits) or unit number (2 digits)

When using remote-/local-controller combined operation, cancel the error code after turning off remote operation. During

central control by a MELANS controller, cancel the error code by pressing the

ON/OFF button.

11-3-2. Self-Diagnosis During Maintenance or Service

Since each unit has a function that stores error codes, the latest check code can be recalled even if it is cancelled by the remote controller or power is turned off.

Check the error code history for each unit using the remote controller.

Switch to self-diagnosis mode.

Press the CHECK button twice within 3 seconds. The display content will change as shown below.

Unit number or refrigerant address to be diagnosed

Set the unit number or refrigerant address you want to diagnose.

Press the [TEMP] buttons ( and ) to select the desired number or address. The number (address) changes between [01] and [50] or [00] and [15].

The refrigerant address will begin to blink approximately 3 seconds after being

selected and the self-diagnosis process will begin.

Display self-diagnosis results. <When there is error code history>

(For the definition of each error code, refer to the indoor unit's installation manual or service handbook.)

(Alternating Display)

Error code (2 or 4 digits) <When there is no error code history>

Address (3 digits) or unit number (2 digits) <When there is no corresponding unit>

Reset the error history.

Display the error history in the diagnosis result display screen (see step ).

28

Press the

ON/OFF button twice within 3 seconds. The self-diagnosis

address or refrigerant address will blink.

Cancel self-diagnosis.

Self-diagnosis can be cancelled by the following 2 methods.

When the error history is reset, the display will look like the one shown below. However, if you fail to reset the error history, the error content will be displayed again.

Press the CHECK button twice within 3 seconds.

Self-diagnosis will be cancelled and the screen will return to the previous state in effect before the start of self-diagnosis.

Press the

ON/OFF button.

Self-diagnosis will be cancelled and the indoor unit will stop.

11-3-3. Remote Controller Diagnosis

If the air conditioner cannot be operated from the remote controller, diagnose the remote controller as explained below.

First, check that the power-on indicator is lit.

If the correct voltage (DC12 V) is not supplied to the remote controller, the indicator will not light.

If this occurs, check the remote controller's wiring and the indoor unit.

Power on indicator

Switch to the remote controller self-diagnosis mode.

Press the FILTER

button to start self-diagnosis.

Press the CHECK button for 5 seconds or more. The display content will

change as shown below.

Remote controller self-diagnosis result

[When the remote controller is functioning correctly]

Check for other possible causes, as there is no problem with the remote controller.

[Where the remote controller is not defective, but cannot be operated.] (Error display 2) [E3], [6833] or [6832] blinks.© Transmission is not possible.

There might be noise or interference on the transmission path, or the indoor unit or other remote controllers are defective. Check the transmission path and other controllers.

[When the remote controller malfunctions]

(Error display 1) "NG" blinks. ©©The remote controller's transmitting-receiv- ing circuit is defective.

The remote controller must be replaced with a new one.

(Error display 3) "ERC" and the number of data errors are displayed. © Data error has occurred.

The number of data errors is the difference between the number of bits sent from the remote controller and the number actually transmitted through the transmission path. If such a problem is occurring, the transmitted data is affected by noise, etc. Check the transmission path.

When the number of data errors is "02":

Transmission data from remote controller

Transmission data on transmission path

To cancel remote controller diagnosis

Press the CHECK button for 5 seconds or more. Remote controller diagnosis will be cancelled, "PLEASE WAIT" and operation lamp will blink. After approximately 30 seconds, the state in effect before the diagnosis will be restored.

29

11-3-4. Malfunction-diagnosis method by wireless remote controller

<In case of trouble during operation>

When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop.

<Malfunction-diagnosis method at maintenance service>

			Refrigerant
			address
CHECK			display
CHECK
display
			Temperature
ON/OFF	TEMP		button
ON/OFF
button
	FAN	AUTO STOP
MODE	VANE	AUTO START	HOUR
CHECK	LOUVER	h	button
CHECK TEST RUN		min
button
SET	RESET CLOCK

[Procedure]

1.Press the CHECK button twice.

2.Press the temperature buttons.

3.Point the remote controller at the sensor on the indoor unit and press the HOUR button.

4.Point the remote controller at the sensor on the indoor unit and press the ON/OFF button.

•"CHECK" lights, and refrigerant address "00" blinks.

•Check that the remote controller's display has stopped before continuing.

•Select the refrigerant address of the indoor unit for the self-diagnosis.

Note: Set refrigerant address using the outdoor unit’s DIP switch (SW1). (For more information, see the outdoor unit installation manual.)

•If an air conditioner error occurs, the indoor unit's sensor emits an intermittent buzzer sound, the operation lamp blinks, and the error code is output.

(It takes 3 seconds at most for error code to appear.)

•The check mode is cancelled.

30