Mitsubishi PCH-3GKHAFT, PCH-5GKHSAFT, PKH-1.6FKHAFT, PKH-3FKHAFT, PLH-1.6KKHCFT Service Manual

1997

SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS

No.OC159

TECHNICAL & SERVICE MANUAL

Indoor unit			R407C
[Model names]			[Service Ref.]
		Ceiling Cassettes
Series PLH
PLH-1.6KKHCFT			PLH-1.6KKHCFT
PLH-3GKHBFT			PLH-3GKHBFT
PLH-5GKHSBFT			PLH-5GKHSBFT
		Ceiling Suspended
Series PCH
PCH-3GKHAFT			PCH-3GKHAFT
PCH-5GKHSAFT			PCH-5GKHSAFT

This service manual covers the modification.

Refer the following service manuals for further information.

INDOOR UNIT

[Service Ref.]	[Service manual No.]
PLH-1.6KKHC	No.OC123
PLH-3GKHB	No.OC096
PLH-5GKHSB
PKH-1.6FKHA3 No.OC130
PKH-3FKHA2
PCH-3GKHA	No.OC135
PCH-5GKHSA

Series PKH Wall Mounted

PKH-1.6FKHAFT	PKH-1.6FKHAFT
PKH-3FKHAFT	PKH-3FKHAFT
Outdoor unit

PUH-1.6VKAFT PUH-3VKAFT PUH-5YKSAFT

PUH-1.6VKAFT PUH-3VKAFT PUH-5YKSAFT

CONTENTS

1.CHANGE POINT···································2

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

3.COMBIINATION OF INDDOR AND OUTDOOR UNITS ································5

4.SPECIFICATIONS·································6

5.WIRING DIAGRAM·····························14

6.REFRIGERANT SYSTEM DIAGRAM ······17

7.PARTS LIST········································20

The Slim Line.

From Mitsubishi Electric.

1 CHANGE POINT

Differentia with the standard type.

1.1.Indoor unit

1) PLH-KKHCFT Series

Items	Type	PLH-KKHCFT	PLH-KKHC
Refrigerant		R407C	R22
Heat exchanger		Use low residual oil piping	Coppaer piping for refrigerant

2) PLH-GHKBFT Series
Items	Type	PLH-GHHBFT	PLH-GKHB
Refrigerant		R407C	R22
Heat exchanger		Use low residual oil piping	Coppaer piping for refrigerant
Capillaly tube	3GKHBFT	{4.0O{2.2–L850mm	{4.0O{2.0–L400mm
	5GKHSBFT	{4.0O{2.6–L690mm	{4.0O{2.0–L350mm
3) PCH-GHKAFT Series
Items	Type	PCH-GKHAFT	PCH-GKHA
Refrigerant		R407C	R22
Heat exchanger		Use low residual oil piping	Coppaer piping for refrigerant
Capillaly tube	3GKHBFT	{4.0O{2.2–L400mm	{4.0O{2.0–L280mm
	5GKHSBFT	{4.0O{2.8–L860mm	{4.0O{2.4–L270mm
4) PKH-FHKAFT Series

	Items	Type	PKH-FKHAFT	PKH-FKHA
	Refrigerant		R407C	R22
	Heat exchanger		Use low residual oil piping	Coppaer piping for refrigerant
	Capillaly tube	3FKHAFT only	{4.0O{2.0–L740mm	{4.0O{2.0–L500mm
4) PKH-FHKAFT Series
	Items	Type	PKH-FKHAFT	PKH-FKHA
	Refrigerant		R407C	R22
	Heat exchanger		Use low residual oil piping	Coppaer piping for refrigerant
		1.6VKAFT	RE247VFC	RH247VFC
	Compressor	3VKAFT	NE52VND	NH52VND
		5YKSAFT	ZR61KCETED	ZR61KCTE5
	Capillaly tube	3GVKAFT only	{4.0O{2.0–L940mm	{4.0O{2.0–L1,070mm
			Attachment to outside of
		1.6VKAFT	the unit.	–
	Filter dryer		(Packing in same package)
		3VKAFT	Self-containing unit	–
		5YKSAFT	Self-containing unit	–
			·Change of rubber materials.
	Ball valve		·Change the oil to coat
			flare nut.	–
	High pressure switch		Addition
	Solnoid valve	1.6VKAFT	Valve diameter {1.8	Valve diameter {2.0
		3VKAFT	Valve diameter {1.8	Valve diameter {2.0
	Charge plug		Change of rubber material.
	Refrigerant charge	1.6VKAFT only	2.3kg	2.2kg
	Rear guard	1.6VKAFT only	Change the rear guard form.
	4 way valve		Change of specification.
	Controller board		Additions of the connector
			for 63H2.

2

2 SAFETY PRECAUTION

Cautions for devices that use R407C refrigerant.

·Do not use the existing refrigerant piping.

-The old refrigerant and refrigerator oil in the existing piping contains a large amount of chlorine which may cause the refrigerator oil of the new unit to deteriorate.

·Use “low residual oil piping”.

-If there is a large amount of residual oil (hydraulic oil, etc.) inside the piping and joints, deterioration of the refrigerator oil will result.

·Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before brazing. (Store elbows and other joints in a plastic bag.)

-If dust, dirt, or water enters the refrigerant cycle, deterioration of the oil and compressor trouble may result.

·Use Suniso 4GS or 3GS (small amount) as the refrigerator oil to coat flares and flange connection parts.

-The refrigerator oil used with the air conditioner is highly hygroscopic. If it is used, water may be mixed in and deterioration of the refrigerator oil may result.

·Use liquid refrigerant to seal the system.

-If gas refrigerant is used to seal the system, the composition of the refrigerant in the cylinder will change and performance may drop.

·Do not use a refrigerant other than R407.

-If another refrigerant (R22, etc.) is used, the chlorine in the refrigerant may cause the refrigerator oil to deteriorate.

·Use a vacuum pump with a reverse flow check valve.

-The vacuum pump oil may flow back into the refrigerant cycle and cause the refrigerator oil to deteriorate.

3

[1] Service tools

Use the below service tools as exclusive tools for R407C refrigerant.

No.	Tool name	Specifications
1	Gauge manifold	·Only for R407C.
		·Use the existing fitting SPECIFICATIONS. (UNF7/16)
		·Use high-tension side pressure of 35kgf/cm2 or over.
2	Charge hose	·Only for R407C.
		·Use pressure performance of 52kgf/cm2 or over.
3	Electronic scale
4	Gas leak detector	·Use the detector for R134a or R407C.
5	Adapter for reverse flow check.	·Attach on vacuum pump.
6	Refrigerant charge base.
7	Refrigerant cylinder.	·For R407C ·Top of cylinder (Brown)
		·Cylinder with syphon
8	Refrigerant recovery equipment.

[2] Notice on repair service

·After recovering the all refrigerator in the unit, proceed to working. ·Do not release the refrigerant in the air.

·After complete the repair service, recharge the cycle with the specified amount of the liquid refrigerant.

4

[3]Refrigerant recharging

(1)Refrigerant recharging process

1Direct enclosure from the bomb.

·Comfirm that R407C bomb on the market are syphon pipe. ·Leave the syphon pipe bomb raising and recharge it.

(By liquid refrigerant)

Unit

Gravimeter

(2) Recharge in refrigerant leakage case

·After recovering the all refrigerator in the unit, proceed to working. ·Do not release the refrigerant in the air.

·After complete the repair service, recharge the cycle with the specified amount of the liquid refrigerant.

3 COMBINATION OF INDOOR AND OUTDOOR UNITS

Indoor unit		Outdoor unit
Service Ref.	Service	1.6	3		5
	Manual No.	VKAFT		VKAFT YKAFT
PLH-GKH(S)BFT	OC096	—
PLH-KKHCFT	OC123			—	—
PCH-GKH(S)AFT	OC135	—
PKH-FKHAFT	OC130				—

5

	4					SPECIFICATIONS
	4.1.Indoor unit
		Item						Service Ref.
		Function
		Capacity						Btu/h
								W
		Total input						kW
			Service Ref.
			Power supply(phase, cycle,voltage)
						Input		kW
						Running current		A
						Starting current		A
			External finish
			Heat exchanger
						Fan(drive) x No.
		UNIT				Fan motor output		kW
						Airflow(Low-High)		K/min(CFM)
		INDOOR				External static pressure		mmAq,Pa
			Booster heater					kW
			Operation control & Thermostat
			Noise level(Low-High)					dB(A)
			Cond. drain conn. O.D.					mm,(in.)
							W	mm,(in.)
			Dimensions				D	mm,(in.)
							H	mm,(in.)
			Weight					kg,(lbs)
			Service Ref.
			Power supply (phase, cycle, voltage)
						Input		kW
						Running current		A
						Starting current		A
			External finish
		UNIT	Refrigerant control
			Compressor
		OUTDOOR				Model
			Heat exchanger					kW
						Motor output
						Starter type
						Protection devices
						Fan(drive) x No.
						Fan motor output		kW
						Airflow		K/min(CFM)
			Defrost method
			Noise level					dB(A)
							W	mm,(in.)
			Dimensions				D	mm,(in.)
							H	mm,(in.)
		PIPING	Weight					kg,(lbs)
			Refrigerant
						Charge	Liquid	kg,(lbs)
		REFRIGERANT	Pipe size O.D.					mm,(in.)
			outdoor unit				Piping length
							Gas	mm,(in.)
			Connection method				Indoor side
							Outdoor side
			Between the indoor &				Height difference

PLH-1.6KKHCFT
Cooling	Heating
15,000	15,900[20,600]
4,400	4,650[6,050]
1.59	1.51[3.20]
PLH-1.6KKHCFT
Single, 50Hz, 220-240V
0.15	0.10[1.50]
0.64	0.45[6.28]
0.70	0.50[6.91]
Galvanized sheets with gray heat insulation
	Plate fin coil
Turbo fan [direct) x 1
	0.030
13-16(460-565)
	0(direct blow)
	[1.4]
Remote controller & built-in
	32-37
	32(1-1/4)
UNIT : 660(26)	PANEL : 760(30)
UNIT : 660(26)	PANEL : 760(30)
UNIT : 253(10)	PANEL : 30(1-1/8)
UNIT : 19(42)[20(44)]	PANEL : 3.7(8)[3.7(8)]
PUH-1.6VKAFT
Single, 50Hz, 220-240V
1.44	1.41
6.74	6.60

33 Munsell 5Y 7/1 Capillary tube

Hermetic

RH247VFC

1.2 Line start

Inner thermostat, High pressure switch Plate fin coil

Propeller (direct) x 1 0.065

45(1,590) Reverse cycle 49 870(34-1/4)

295+24 (11-5/8 and 1)

650 (25-5/8) 53(117) R407C 2.3(5.1) 9.52 (3/8) 15.88 (5/8) Flared Flared Max. 40m Max. 40m

6

	Item			Models
	Function
	Capacity			Btu/h
				W
	Total input			kW
		Service Ref.
		Power supply(phase, cycle,voltage)
		Input		kW
		Running current		A
		Starting current		A
		External finish
	UNIT	Heat exchanger		kW
		Fan motor output
	INDOOR	Fan(drive) x No.
		Booster heater		kW
		Airflow(Low-High)		K/ min (CFM)
		External static pressure		Pa(mmAq)
		Operation control & Thermostat
		Noise level(Low-High)		dB(A)
		Cond. drain conn. O.D.		mm,(in)
			W	mm,(in)
		Dimensions	D	mm,(in)
			H	mm,(in)
		Weight		kg,(lbs)
		Service Ref.
		Power supply (phase, cycle, voltage)
		Input		kW
		Running current		A
		Starting current		A
		External finish
		Refrigerant control
		Compressor
	UNIT	Model
		Motor output		kW
	OUTDOOR	Fan(drive) x No.
		Starter type
		Protection devices
		Heat exchanger
		Fan motor output		kW
		Airflow		K/ min (CFM)
		Defrost method
		Noise level		dB(A)
			W	mm,(in)
		Dimensions	D	mm,(in)
			H	mm,(in)
		Weight		kg,(lbs)
		Refrigerant
	REFRIGERANT PIPING	Charge		kg,(lbs)
		Pipe size O.D.	Liquid	mm,(in)
			Gas	mm,(in)
		Connection method	Indoor side
			Outdoor side
		Between the indoor & outdoor units	Height difference
			Piping length

w1 V…Internal Thermostat, HP switch

Y…Anti-phase protector, thermal relay, thermal switch, HP switch

	PLH-3GKHBFT
Cooling	Heating
26,300	28,700[35,800]
7,700	8,400[10,500]
3.57	3.59[5.69]
	PLH-3GKHBFT
	Single, 50Hz, 220-240V
0.16	0.16[2.26]
0.72	0.72[9.5]
1.00	1.00[9.8]
Galvanized sheets with gray heat insulation
	Plate fin coil
	Turbo fan (direct) x 1
	0.050
	14-18(495-640)
	0(direct blow)

[2.1]

Remote controller & built-in

	32-39
	30(1-1/4)
UNIT : 820(32-1/4)		PANEL : 950(37-3/8)
UNIT : 820(32-1/4)		PANEL : 950(37-3/8)
UNIT : 258(10-1/8)		PANEL : 65(2-9/16)
UNIT : 29(64)		PANEL : 7(16)
	PUH-3VKAFT
Single, 50Hz, 220-240V/3, 50Hz, 380-415V(4wires)
3.41
		3.43
4.96/15.58		5.04/5.61
58/37		58/37

Munsell 5Y 7/1 Capillary tube Hermetic NE-52VND 2.2/2.4

Line start w1

Plate fin coil Propeller (direct) x1 0.085

50(1764) Reverse cycle 52 870(34-1/4)

295+24 (11-5/8 add 1) 850(34-1/4)

75(165)

R407C

3.2(7.1) 9.52 (3/8) 15.88(5/8)

Flared

Flared

Max. 50m

Max. 50m

7

	Item			Models
	Function
	Capacity			Btu/h
				W
	Total input			kW
		Service Ref.
		Power supply(phase, cycle,voltage)
		Input		kW
		Running current		A
		Starting current		A
		External finish
	UNIT	Heat exchanger		kW
		Fan motor output
	INDOOR	Fan(drive) x No.
		Booster heater		kW
		Airflow(Low-High)		K/ min (CFM)
		External static pressure		Pa(mmAq)
		Operation control & Thermostat
		Noise level(Low-High)		dB(A)
		Cond. drain conn. O.D.		mm,(in)
			W	mm,(in)
		Dimensions	D	mm,(in)
			H	mm,(in)
		Weight		kg,(lbs)
		Service Ref.
		Power supply (phase, cycle, voltage)
		Input		kW
		Running current		A
		Starting current		A
		External finish
		Refrigerant control
		Compressor
	UNIT	Model
		Motor output		kW
	OUTDOOR	Fan(drive) x No.
		Starter type
		Protection devices
		Heat exchanger
		Fan motor output		kW
		Airflow		K/ min (CFM)
		Defrost method
		Noise level		dB(A)
			W	mm,(in)
		Dimensions	D	mm,(in)
			H	mm,(in)
		Weight		kg,(lbs)
		Refrigerant
	REFRIGERANT PIPING	Charge		kg,(lbs)
		Pipe size O.D.	Liquid	mm,(in)
			Gas	mm,(in)
		Connection method	Indoor side
			Outdoor side
		Between the indoor & outdoor units	Height difference
			Piping length

	PLH-5GKHSBFT
Cooling	Heating
41,300	45,700[56,000]
12,100	13,400[16,400]
4.55	4.77[7.77]
	PLH-5GKHSBFT
	Single, 50Hz, 220-240V
0.28	0.28[3.28]
1.27	1.27[13.8]
1.50	1.50[14.0]
Galvanized sheets with gray heat insulation
	Plate fin coil
	Turbo fan (direct) x 2
	0.050+0.050
	24-33(850-1165)
	0(direct blow)

[3.0]

Remote controller & built-in

	36-43
	30(1-1/4)
UNIT : 1340(52-3/4)		PANEL : 1470(57-7/8)
UNIT : 820(32-1/4)		PANEL : 950(37-3/8)
UNIT : 258(10-1/8)		PANEL : 65(2-9/16)
UNIT : 45(99)		PANEL :10(22)
	PUH-5YKSAFT
3, 50Hz, 380-415V(4wire)
4.27
		4.49
6.90		7.34
53		53

Munsell 5Y 7/1 Capillary tube Hermetic ZR61KCE-TFD 3.5

Line start

Internal thermostat, Anti-phasa protector, Thermal switch, HP switch Plate fin coil

Propeller (direct) x2 0.085+0.085 95(3550) Reverse cycle

55 970(38-3/16) 345+24(13-9/16 add 1) 1258(49-1/2) 114(251)

R407C

5.4(11.9)

9.52(3/8)

19.05(3/4) Flared Flared Max. 50m Max. 50m

8

Rating Conditions (JIS B8616)

Item

Service Ref.

PCH-3GKHAFT

PCH-4GKHSA1

Function

Cooling

Heating

Cooling

Heating

Capacity

Btu/h

25,600

29,000 (36,200)

34,100

35,700 (44,900)

W

7,500

8,500 (10,600)

10,000

10,450 (13,150)

Total input

kW

3.28

3.07 (5.17)

3.36

3.35(6.05)

Service Ref.

PCH-3GKHAFT

PCH-4GKHSA1

Power supply

Single phase. 50Hz. 220-240V

Input

kW

0.13

0.13 (2.23)

0.16

0.16 (2.86)

Running current

A

0.55

0.55 (9.30)

0.70

0.70 (11.95)

Starting current

A

1.27

1.27 (10.02)

1.48

1.48 (12.73)

External finish

Munsell 0.70Y 8.59 / 0.97

Heat exchanger

Plate fin coil

UNIT

Fan(drive))No.

Sirocco (direct) 3

Fan motor output

kW

0.07

0.09

INDOOR

Booster heater

kW

(2.1)

(2.7)

Airflow(Low-High)

K/min <CFM>

14 -18 <494-635>

20 -25 <706-883>

External static pressure

Pa(mmAq)

0 (direct blow)

Operation control & Thermostat

Remote controller & built-in

Noise level(Low-High)

dB(A)

37 - 43

40 - 45

Cond. drain connection O.D.

mm,(in)

26 (1)

W

mm,(in)

1,310 ( 51-9/16 )

Dimensions

D

mm,(in)

680 (26-3/4)

H

mm,(in)

210 (8-1/4)

270 (10-5/8)

Weight

kg,(lbs)

36 (79)

39.5 (87)

Service Ref.

PUH-3VKAFT

PUH-4YKSA3

Power supply

VKA...1phase, 50Hz, 220-240V

Input

kW

3.15

2.94

3.20

3.19

Running current

A

13.82 / 5.16

12.89 / 4.81

5.24

5.22

Starting current

A

58 / 37

58 / 37

40

40

External finish

Munsell 5Y 7/1

Refrigerant control

Capillary tube

Compressor

Hermetic

UNIT

Model

NH52YDA

NH56YDA

Motor output

kW

2.2 / 2.4

2.7

OUTDOOR

Starter type

Line start

Protection devices

VKA...Inner thermostat. High-pressure switch YKA...Anti-phase protector, Thermal relay, Thermal switch, High-pressute switch

Heat exchanger

Plate fin coil

Fan(drive))No.

Propeller (direct) 1

Propeller (direct) 2

Fan motor output

kW

0.085

0.065 + 0.065

Airflow

K/min <CFM>

50 (1,764)

95 (3,350)

Defrost method

Reverse cycle

Crankcase heater

W

38

38

Noise level

dB(A)

52

54

W

mm,(in)

870 <34-1/4>

Dimensions

D

mm,(in)

295 + 24 <11-5/8 add 1>

H

mm,(in)

850 (33-7/16)

1,258 (49-1/2)

Weight

kg,(lbs)

75 (165)

94 (207)

Refrigerant

R407C

REFRIGERANT PIPING

Charge

kg,(lbs)

3.2 (7.1)

4.2 (9.2)

Pipe size O.D.

Liquid

mm,(in)

9.52 (3/8)

9.52 (3/8)

Gas

mm,(in)

15.88 (5/8)

19.05 (3/4)

Connection method

Indoor side

Flared

Outdoor side

Flared

Between the indoor & outdoor unit

Height difference

Max. 50m

Piping length

Max. 50m

Notes1. Rating Conditions (JIS B8616)

2. Guaranteed operating range

Cooling : Indoor

: 27:(80oF)DB. 19:(66oF)WB

Indoor

Outdoor

Outdoor : 35:(95oF)DB. 24:(75oF)WB

Upper limit

35: DB, 22.5: WB

46: DB

Heating : Indoor

: 20:(68oF)

Cooling

Lower limit

21: DB, 15.5: WB

-5: DB

o

o

Outdoor : 7:(45 F)DB. 6:(43 F)WB.

Refrigerant piping length (one way) : 5m(16ft)

Heating

Upper limit

27: DB

21: DB, 15.5: WB

3. Above data based on indicated voltage

Lower limit

20: DB

-8.5: DB, -9.5: WB

Indoor Unit

1 phase 240V 50Hz

Outdoor Unit

1 phase 240V 50Hz / 3 phase 415V 50Hz

9

Rating Conditions (JIS B8616)

	Item					Service Ref.
	Function
	Capacity					Btu/h
						W
	Total input					kW
		Service Ref.
		Power supply
		Input				kW
		Running current				A
		Starting current				A
		External finish
	UNIT	Heat exchanger				kW
		Fan motor output
	INDOOR	Fan(drive))No.
		Booster heater				kW
		Airflow(Low-High)				K/min <CFM>
		External static pressure				Pa(mmAq)
		Operation control & Thermostat
		Noise level(Low-High)				dB(A)
		Cond. drain connection O.D.				mm,(in)
					W	mm,(in)
		Dimensions			D	mm,(in)
					H	mm,(in)
		Weight				kg,(lbs)
		Service Ref.
		Power supply
		Input				kW
		Running current				A
		Starting current				A
		External finish
		Refrigerant control
		Compressor
	UNIT	Model
		Motor output				kW
	OUTDOOR	Starter type
		Protection devices
		Heat exchanger
		Fan(drive))No.
		Fan motor output				kW
		Airflow				K/min <CFM>
		Defrost method
		Crankcase heater				W
		Noise level				dB(A)
					W	mm,(in)
		Dimensions			D	mm,(in)
					H	mm,(in)
		Weight				kg,(lbs)
		Refrigerant
	REFRIGERANT PIPING	Charge				kg,(lbs)
		Pipe size O.D.		Liquid		mm,(in)
				Gas		mm,(in)
		Connection method			Indoor side
					Outdoor side
		Between the indoor & outdoor unit			Height difference
					Piping length
	Notes1. Rating Conditions (JIS B8616)
		Cooling : Indoor	: 27:(80oF)DB. 19:(66oF)WB
		Outdoor : 35:(95oF)DB. 24:(75oF)WB

Heating : Indoor : 20:(68oF)DB.

Outdoor : 7:(45oF)DB. 6:(43oF)WB. Refrigerant piping length (one way) : 5m(16ft)

3. Above data based on indicated voltage Indoor Unit 1 phase 240V 50Hz Outdoor Unit 3 phase 415V 50Hz

PCH-5GKHSAFT				PCH-6GKHSA1
Cooling		Heating		Cooling		Heating
42,300		47,400 (57,700)		49,500		51,200 (61,400)
12,400		13,900 (16,900)		14,500		15,000 (18,000)
4.45		4.40 (7.40)		4.97		4.82 (7.82)
PCH-5GKHSAFT				PCH-6GKHSA1
		Single phase. 50Hz. 220-240V
0.24		0.24 (3.24)		0.24		0.24 (3.24)
1.06		1.06 (13.56)		1.06		1.06 (13.56)
2.20		2.20 (14.70)		2.20		2.20 (14.70)
		Munsell 0.70Y 8.59 / 0.97
		Plate fin coil
		Sirocco (direct) 4
	0.15
	27 -34 <953-1,200>
		0 (direct blow)
	(3.0)
		Remote controller & built-in
	41-46				42-48
	26 (1)
	1,620 (63-3/4)
	680 (26-3/4)
	270 (10-5/8)
	46 (101)				48 (106)
PUH-5YSAFT				PUH-6YKSA2
		3 phases. 50Hz. 380-415V (4 wires)
4.21		4.16		4.73		4.58
6.89		6.81		7.74		7.50
53		53		74		74
		Munsell 5Y 7/1
		Capillary tube
		Hermetic
ZR61KC-ETED				ZR68KC-TFD
	3.5				4.0

Line start

Anti-phase protector, Internal thermostat, Thermal switch, High-pressure switch

Plate fin coil

Propeller (direct) 2

0.085 + 0.085					0.10 + 0.10
95 (3,350)					100 (3,530)
			Reverse cycle
			38
	55					56
			970 (38-3/16)
		345 + 24 (13-9/16 add 1)
			1,258 (49-1/2)
	114 (251)				117 (258)
				R407C
	5.4 (11.9)				5.0 (11.0)
			9.52 (3/8)
			19.05 (3/4)
				Flared
				Flared
				Max. 50m
				Max. 50m
2. Guaranteed operating range
					Indoor	Outdoor
Cooling		Upper limit		35: DB, 22.5: WB		46: DB
		Lower limit		21: DB, 15.5: WB		-5: DB
Heating		Upper limit			27: DB	21: DB, 15.5: WB
		Lower limit			20: DB	-8.5: DB, -9.5: WB

10

	Item						Service Ref.		PKH-1.6FKHAFT
	Function							Cooling		Heating
	Capacity						W	4,500		4,650(6,050)
							Btu/h	15,350		15,900(20,600)
	Total input						kW	1.51		1.48(2.88)
		Service Ref.							PKH-1.6FKHAFT
		Power supply(phase,cycle,voltage)							Single, 50Hz, 220-240V
			Input				kW	0.07		0.07(1.47)
			Running current				A	0.32		0.32(6.15)
			Starting current				A	0.40		0.40(6.23)
		External finish						Munsell 3.4Y 7.7/0.8(White)
	UNIT	Heat exchanger							Plate fin coil
			Fan(drive)	No.					Line flow(direct) 1
	INDOOR		Fan motor output				kW		0.030
			Airflow(Low-High)				m3/X<CFM>		10-13<353-459>
			External static pressure				Pa(mmAq)		0<direct blow>
		Booster heater					kW		1.4
		Operation control & Thermostat						Remote controller & built-in
		Noise level(Low-High)					>(A)		36-43
		Cond. drain connection. O.D.					A,<in.>		20<13/16>
		Dimensions			W		A,<in.>		1,250<49-3/16>
					D		A,<in.>		200<7-7/8>
					H		A,<in.>		300<11-13/16>
		Weight					kg,<lbs>		18<40>
		Service Ref.							PUH-1.6VKAFT
		Power supply (phase, cycle, voltage)							Single, 50Hz, 220-240V
			Input				kW	1.44	1.41
			Running current				A	6.74	6.60
			Staring current				A		33
		External finish							Munsell 5y 7/1
		Refrigerant control							Capillary tube
	UNIT	Compressor							Hermetic
			Motor output				kW		1.2
			Model						RE247VFC
	OUTDOOR
			Starter type						Line start
			Protection devices					Internal thermostat, HP switch
		Heat exchanger							Plate fin coil
			Fan(drive) No.						Propeller (direct) 1
			Fan motor output				kW		0.065
			Airflow				m3/X,<CFM>		45<1,590>
		Defrost method							Reverse cycle
		Noise level					>(A)		49
		Dimensions			W		A,<in.>		870<34-1/4>
					D		A,<in.>		295+24<11-5/8 add 1>
					H		A,<in.>		650<25-5/8>
		Weight					kg,<lbs>		53<117>
	PIPING	Refrigerant							R-407C
			Charge				kg,<lbs>		2.3<5.1>
	REFRIGERANT	Pipe size O.D.			Liquid		A,<in.>		9.52<3/8>
					Piping length				Max. 40m
					Gas		A,<in.>		15.88<5/8>
		Connection method			Indoor side				Flared
					Outdoor side				Flared
		Between the indoor & outdoor unit			Height difference				Max. 40m
Note. Rating Conditions (JIS B 8616)
	Cooling : Indoor		: 27°C (80°C) DB, 19°C (66°F) WB
		Outdoor : 35°C (95°F) DB, 24°C (75°F) WB
	Heating : Indoor		: 20°C (68°F)
		Outdoor : 7°C (45°F) DB, 6°C (43°F) WB

11

Item						Service Ref.		PKH-3FKHAFT
Function							Cooling		Heating
Capacity						W	7,900		9,100(11,200)
						Btu/h	27,000		31,000(38,200)
Total input						kW	3.25		3.04(5.14)
	Service Ref.							PKH-3FKHAFT
	Power supply(phase,cycle,voltage)						Single, 50Hz, 220-240V
		Input				kW	0.095		0.095(2.195)
		Running current				A	0.44		0.44(9.19)
		Starting current				A	0.80		0.80(9.55)
	External finish						Munsell 3.4Y 7.7/0.8(White)
UNIT	Heat exchanger							Plate fin coil
		Fan(drive)	No.					Line flow(direct) 2
INDOOR		Fan motor output				kW		0.040
		Airflow(Low-High)				m3/X<CFM>		15-20<530-706>
		External static pressure				Pa(mmAq)		0(direct blow)
	Booster heater					kW		2.1
	Operation control & Thermostat						Remote controller & built-in
	Noise level(Low-High)					>(A)		35-43
	Cond. drain conn. O.D.					A,<in.>		20<13/16>
	Dimensions			W		A,<in.>		1,400<55-1/8>
				D		A,<in.>		235<9-1/4>
				H		A,<in.>		340<13-3/8>
	Weight					kg,<lbs>		26<57>
	Service Ref.							PUH-3VKAFT
	Power supply (phase, cycle, voltage)						Single, 50Hz, 220-240V/3
		Input				kW	3.15/3.15	2.94/2.94
		Running current				A	13.82/5.16	12.89/4.81
		Staring current				A		58/37
	External finish							Munsell 5Y 7/1
	Refrigerant control							Capillary tube
UNIT	Compressor							Hermetic
		Motor output				kW		2.2
		Model						NE52VND
OUTDOOR
		Starter type						Line start
		Protection devices					Internal thermostat, HP switch/Thermal relay, thermal switch
	Heat exchanger							Plate fin coil
		Fan(drive) No.						Propeller (direct) 1
		Fan motor output				kW		0.085
		Airflow				m3/X<CFM>		50<1,764>
	Defrost method							Reverse cycle
	Noise level					>(A)		52
	Dimensions			W		A,<in.>		870(34-1/4)
				D		A,<in.>	295+24<11-5/8 add 1>
				H		A,<in.>		850<33-7/16>
	Weight					kg,<lbs>		75<165>
PIPING	Refrigerant							R-407C
		Charge				kg,<lbs>		3.2<7.1>
REFRIGERANT	Pipe size O.D.			Liquid		A,<in.>		9.52<3/8>
				Piping lenghth				Max. 50m
				Gas		A,<in.>		15.88<5/8>
	Connection method			Indoor side				Flared
				Outdoor side				Flared
	Between the indoor & outdoor unit			Height difference				Max. 50m
Note. Rating Conditions (JIS B 8616)
Cooling : Indoor		: 27°C (80°C) DB, 19°C (66°F) WB
	Outdoor : 35°C (95°F) DB, 24°C (75°F) WB
Heating : Indoor		: 20°C (68°F)
	Outdoor : 7°C (45°F) DB, 6°C (43°F) WB

12

4.2.Outdoor unit

1. REFILLING REFRIGERANT CHARGE (R-22 : kg)

	Service Ref.				Refrigerant piping length (one way)
		5m	10m	15m	20m	25m	30m	35m	40m	45m	50m
	PUH-1.6VKAFT	1.6	1.8	1.9	2.0	2.2	2.3	2.4	2.5	—	—
	PUH-3VKAFT	2.5	2.7	2.8	2.9	3.1	3.2	3.3	3.4	3.6	3.7
	PUH-5YKSAFT	4.7	4.8	5.0	5.1	5.3	5.4	5.6	5.7	5.9	6.0

2. COMPRESSOR TECHNICAL DATA at 20˚C

Compressor Model RE247VFC NE52VND

U-V

Winding (R-C)

U-W Resistance (S-C)

(!)

W-V

at 25˚C

Compressor Model

ZR61KCETED

T1-T2

Winding Resistance T2-T3

(!)

T3-T1

13

5			WIRING DIAGRAM
PUH-1.6VKAFT
SYMBOL			NAME	SYMBOL	NAME	SYMBOL	NAME
MC			COMPRESSOR	TB1,3	TERMINAL BLOCK	X12<O.B>	COMPRESSOR RELAY
MF			OUTDOOR FAN MOTOR (INNER THERMOSTAT)	63H1	CONTROL HIGH PRESSURE SWITCH	X13<O.B>	SOLENOID COIL RELAY
C1			FAN MOTOR CAPACITOR	63H2	PROTECT HIGH PRESSURE SWITCH	X14<O.B>	SOLENOID COIL RELEY
C2			COMPRESOR CAPACITOR	O.B	OUTDOOR CONTROLLER BOARD	X16	HIGH PRESSURE RELAY
RT			PIPE TEMP. THERMISTOR	ZNR<O.B>	SURGE ABSORBER	SW1,2,3<O.B>	CHECK,SERVICE SELECT SWITCH
HC			CRANKCASE HEATER	F<O.B>	FUSE(6.3A)	LD1-LD8<O.B>	CHECK,SERVICE LED
52C			CONTACTOR	FC<O.B>	FAN CONTROLLER
21S4			4-WAY VALVE SOLENOID COIL	X11<O.B>	CRANKCASE HEATER RELAY
21R			BYPASS VALVE SOLENOID COIL	T	TRANSFORMER

TO INDOOR UNIT

1

YLW

LED

RT

2

ORN

CONNECTING WIRES

3

BRN

DC 12V (polar)

O.B

TB3

SW1

LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8

4 3 2 1

SW2

CN2

X14 X13

X12 X11

CN4

SW3

OFF

63H1

2 1

ON

X14

X13

X12

X11

3

2 CN3

1

CN4T

4

F

4

3

2

1

SV

TRF

21S4

52C

CH

ZNR R/1

S/2 T/3

WHT WHT

RED RED

WHT WHT

BLU

BLU

GRYGRY A1

BLU BLU BRNBRNYLWYLWYLWYLW

21

52C

HC

63H1

240V

S4

YLW

21R

A2

BRN AC12.3V ORN

230V

GRY

GRY

RED AC12.3V

RED

220V

7 6

X16

2

63H2

X16

T

8

GRY

RED

TB1

BLU

52CT1/2

POWER SUPPLY

RED L1/1

BLU

R

L

BLU

WHT

~/N(1phase)

N

L3/5

C

MC

T3/6

RED

RED

220V-240V 50Hz

S

C2

GRN/YLW

FC

MF2

26C

63H2 MF1

51CM

5

BLU	VLT VLT	1		BLU WHT
		X16
		5
	BLU		4	RED
	MF REDWHT		3
	ORN		2	C1
			1

ORN

Main functions of LED (when both Nos.1 and 2 of SW3 are “OFF”)

LED No.	Output display	( )	(	flash	)
		light	Check display
LD1	Compressor indoor command		–
LD2	Heating indoor command		–
LD3	63H1	ON	Pipe sensor short/open
LD4	Compressor	ON	63H2 functions
LD5	Outdoor fan	ON	–
LD6	4-way valve	ON	–
LD7	Bypass valve	ON	RT overheat protection
LD8	Crankcase heater	ON	Defective input

NOTE : If the operation stops to function of the protection device, the check display flashes.

CAUTION FOR SERVICING

How to use SW1 and 2

●Pressing SW1 erases the past check contents loaded on the

microcomputer.

●The output display (light) remains lit during operation but pressing SW2 displays the past check contents in flashing mode. Pressing the switch again returns to output display (light).

●
Connect the lead wires accordling to the color indication of sticker on the compressor terminal.			When power supply is 220V
CAUTIONS FOR POWER SUPPLY WIRING
			RED						WHITE
●				220V
Since LD8 lights when normal power is turned “ON”, check the power supply with the “ON” or “OFF” LD8.			ORANGE
Since the transformer (T) is connected with 240V power, if 220V or 230V power is used, change the wiring connection
				230V
in the following procedure.			YELLOW
				240V
CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES

●Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units.

14

PUH-3VKAFT

SYMBOL	NAME	SYMBOL	NAME	SYMBOL	NAME
MC	COMPRESSOR	TB1,3	TERMINAL BLOCK	X12<O.B>	COMPRESSOR RELAY
MF	OUTDOOR FAN MOTOR (INNER THERMOSTAT)	63H1	CONTROL HIGH PRESSURE SWITCH	X13<O.B>	SOLENOID COIL RELAY
C1	FAN MOTOR CAPACITOR	63H2	PROTECT HIGH PRESSURE SWITCH	X14<O.B>	SOLENOID COIL RELEY
C2	COMPRESOR CAPACITOR	O.B	OUTDOOR CONTROLLER BOARD	X16	HIGH PRESSURE RELAY
TH	PIPE TEMPERATURE THERMISTOR	ZNR<O.B>	SURGE ABSORBER	SW1,2,3<O.B>	CHECK,SERVICE SELECT SWITCH
HC	CRANKCASE HEATER	F<O.B>	FUSE(6.3A)	LD1-LD8<O.B>	CHECK,SERVICE LED
52C	CONTACTOR	FC<O.B>	FAN CONTROLLER	CN3<O.B>	CONNECTING WIRES
21S4	4-WAY VALVE SOLENOID COIL	X11<O.B>	CRANKCASE HEATER RELAY		INDOOR/OUTDOOR CONNECTOR
21R	BYPASS VALVE SOLENOID COIL	T	TRANSFORMER	CN4T<O.B>	TRANSFORMER CONNECTOR

TO INDOOR UNIT CONNECTING WIRES DC 12V

POWER SUPPLY ~/N(1phase) 220V-240V 50Hz

1

YLW

LED

TH

2

ORN

O.B

3

BRN

TB3

SW1

4 3 2 1

SW2

LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8

CN4

SW3

OFF

CN2

X14

X13

X12

X11

21 ON

3

CN3

2

26C

1

X14

X13

X12

X11

F.C

63H1

63H2

MF2

MF1

CN4T

51CM

4 3 2 1 4

RED

SV

TRF

21S4

52C

CH

ZNR F R

S T

5

RED RED

BLU

BLU

GRY

GRY

WHT

WHT

BRN BRN

YLW

YLW VLT VLT

YLW YLW BLU

RED

BRN

BLU BLU

BRN

A1

1

WHT

3

WHT

21

HC

AC

YLW

21R

52C

63H1

X16

BLU

BLU

MF

ORN 240V

S4

5

ORNRED

4

ORNRED

12.3V

A2

GRY

C1

2

RED 230V

WHT

GRY

1

AC12.3V

220V

X167 6 X16 2 63H2

T

WHT

8

GRY

BLU

RED

TB1

RED

L1/1

T1/2 BLU

R

L

BLU

WHT

C

N

L3/5

T2/6

MC

RED RED

S

GRN/YLW

52C

C2

Main functions of LED (when both Nos.1 and 2 of SW3 are “OFF”)

LED No.	Output display	(	light	)	(	flash	)
					Check display
LD1	Compressor indoor command				–
LD2	Heating indoor command				–
LD3	63H1	ON			Pipe sensor short/open
LD4	Compressor	ON			63H2 functions
LD5	Outdoor fan	ON			–
LD6	4-way valve	ON			–
LD7	Bypass valve	ON			TH overheat protection
LD8	Crankcase heater	ON			Defective input

NOTE : If the operation stops to function of the protection device, the check display flashes.

CAUTION FOR SERVICING

How to use SW1 and 2

●Pressing SW1 erases the past check contents loaded on the

microcomputer.

●The output display (light) remains lit during operation but pressing SW2 displays the past check contents in flashing mode. Pressing the switch again returns to output display (light).

●Connect the lead wires accordling to the color indication of sticker on the compressor terminal.

			When power supply is 220V
CAUTIONS FOR POWER SUPPLY WIRING
			RED						WHITE
●Since LD8 lights when normal power is turned “ON”, check the power supply.				220V
			ORANGE
Since the transformer (T) is connected with 240V power, if 220V or 230V power is used, change the wiring connection
				230V
in the following procedure.			YELLOW
				240V
CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES

●Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units.

15

PUH-5YKSAFT

SYMBOL	NAME	SYMBOL	NAME	SYMBOL	NAME
MC	COMPRESSOR	TB1,3	TERMINAL BLOCK	X12<O.B>	COMPRESSOR RELAY
MF1,2	OUTDOOR FAN MOTOR (INNER THERMOSTAT)	63H1	CONTROL HIGH PRESSURE SWITCH	X13<O.B>	SOLENOID COIL RELAY
C1,2	FAN MOTOR CAPACITOR	63H2	PROTECT PRESSURE SWITCH	X14<O.B>	SOLENOID COIL RELEY
TH	PIPE TEMPERATURE THERMISTOR	26C	DIS.CHARGE THERMAL SWITCH	CN3<O.B>	CONNECTING WIRES
HC	CRANKCASE HEATER	O.B	OUTDOOR CONTROLLER BOARD		INDOOR/OUTDOOR CONNECTOR
49C	INTERNAL THERMOSTAT FOR MC	ZNR<O.B>	SURGE ABSORBER	CN4T<O.B>	TRANSFORMER CONNECTOR
52C	CONTACTOR	F<O.B>	FUSE(6.3A)	SW1,2,3<O.B>	CHECK,SERVICE SELECT SWITCH
21S4	4-WAY VALVE SOLENOID COIL	FC<O.B>	FAN CONTROLLER	LD1-LD8<O.B>	CHECK,SERVICE LED
21R	BYPASS VALVE SOLENOID COIL	X11<O.B>	CRANKCASE HEATER RELAY	51CM<O.B>	JUMPER CONNECTOR
X16	HIGH PRESSURE RELAY	T	TRANSFORMER

TO INDOOR UNIT CONNECTING WIRES DC 12V

POWER SUPPLY 3N~(3phase 4wires) 380/220V-415/240V 50Hz

	1	YLW	LED	TH
	2	ORN
			O.B
	3	BRN

TB3

SW1

4 3 2 1

SW2

LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8

CN4

SW3

OFF

CN2

X14

X13

X12

X11

21 ON

3

2 CN3

26C

1

X14

X13

X12

X11

F.C

MF2

CN4T

63H1

63H2

51CM

4 3 2 1 4

SV

TRF

21S4

52C

CH ZNRFR

S

T

5

RED

RED RED

BLU BLU

GRY

GRY

BLK

BLK

BRN BRN

VLT

VLT

BLK

BLK

RED

1

BRN

BRN

13

A1

YLW

HC

63H1

X16

AC

52C

21R

21

52C

26C

ORN 240V

12.3V

14

S4

A2

5

C1

RED 230V

RED

WHT

GRY

GRY

AC12.3V

220V

7 6

2

63H2

X16

WHT

T

X16

RED

8

GRY

C2

WHT

BLK

MC

TB1

BLU

49C

RED L1/1

T1/2

RED

T1

L1

WHTL2/3

T2/4

WHT

T2

L2

BLU L3/5

T3/6

BLU

T3

L3

52C

N

GRN/YLW

MF1

WHT 3 WHT BLU 4 BLU RED 2 RED ORN 1 ORN

WHT 3 WHT BLU 4 BLU BRN 2 RED YLW 1 ORN

MF1

MF2

Main functions of LED (when both Nos.1 and 2 of

SW3

are “OFF”)

How to use SW1 and 2

●Pressing

erases the past check contents loaded on the

(

)

(

)

SW1

LED No.

Output display

light

Check display

flash

microcomputer.

LD1

Compressor indoor command

Auti-phase detect

●The output display (light) remains lit during operation but

LD2

Heating indoor command

Missing-phase detect

pressing

SW2

displays the past check contents in flashing

LD3

63H1

ON

Pipe sensor short/open

mode. Pressing the switch again returns to output display

LD4

Compressor

ON

63H2 functions

(light).

LD5

Outdoor fan

ON

–

Power line reconnection procedure

LD6

4-way valve

ON

26C functions

In case of reverse rotation

LD7

Bypass valve

ON

RT overheat protection

LD8

Crankcase heater

ON

Defective input

Unit side

Outdoor unit

L1 L2L3

NOTE : If the operation stops to function of the protection device, the check display flashes.

wiring

terminal

charge 2 out of 1.

CAUTION FOR SERVICING

2 and 3.

Connect the lead wires accordling to the color indication of sticker on the compressor terminal.

Field wiring

(This example shows

●

reconnection of 1

CAUTIONS FOR POWER SUPPLY WIRING

Change thie side

and 2.)

1 2 3

Making wiring connection in anti-phase or missing phase “L2” or “L3” causes the protection device incorporated in the

●

microcomputer to function resulting in LD1 or LD2 shown in the table above to flash and prevents the compressor

When power supply is 220V

operation. If phase “L1” or “N” is missing it causes all displays to go out. Under normal condition LD8 light when power

is turned “ON”. If anti-phase connection is to be used, change connections of 2 out of 3 power lines (field wiring side)

RED

WHITE

220V

contained in the power supply terminal block (TB1) of the outdoor unit as shown at the right upper.

ORANGE

Since the transformer (T) is connected with 240V power, if 220V or 230V power is used, change the wiring connection

230V

in the following procedure.

YELLOW

240V

CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES

●Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units.

16

6 REFRIGERANT SYSTEM DIAGRAM

PLH-1.6KKHCFT/PUH-1.6VKAFT

Unit : mm

High pressure

control switch

Oil separator

Indoor unit

Indoor heat exchanger

Strainer

Indoor coil	Restrictor
thermistor	valve
(RT2)
Distributor
with
strainer	Capillary
	tube

PLH-1.6 (O.D.3.2 I.D.1.6-r630)

Refrigerant pipe (option) 15.88mm( 5/8")

(with heat insulator)

Flexible tube

Flared connection

Refrigerant pipe (option) 9.52mm(3.8")

(with heat insulator)

4-way valve	Service	Outdoor unit
	port	Outdoor heat exchanger
Ball valve
Strainer
Service			Outdoor coil
port
			thermistor
			(TH)
		Bypass
		valve
Accumulator		Restrictor	Capillary
		valve	tube
	Compressor

	Ball valve	Strainer
		High pressure

(with service port)	protect switch
	PUH-1.6 (O.D.3.2 I.D.1.8 -R600)

	Refrigerant flow in cooling	R.V.coil
		Heating ON
	Refrigerant flow in heating
		Cooling OFF

PKH-1.6FKHAFT/PUH-1.6VKAFT

PKH-3FKHAFT/PUH-3VKAFT

					High pressure
				Oil separator	control switch
		Refrigerant pipe		4-way valve	Service	Outdoor unit
Indoor unit		(option)			port	Outdoor heat exchanger
		15.88mm(	5/8")	Ball valve
		(with heat insulator)		Strainer
		Flexible tube
Indoor				Service			Outdoor coil
heat				port
							thermistor
exchanger
							(TH)
	Strainer	Flared				Bypass
		connection
						valve
				Accumulator		Restrictor	Capillary
Indoor coil	Restrictor				Compressor	valve	tube
thermistor	valve
(RT1)
Distributor		Refrigerant pipe		Ball valve		Strainer
with
		(option)		(with service port)
strainer
	Capillary	9.52mm(	3.8")
					PUH-1.6 (O.D.3.2	I.D.1.8 -r600)
		(with heat insulator)		High pressure
	tube			control switch	PUH-3 (O.D.4.0	I.D.2.4 -r940)
PKH-1.6 (O.D.3.2	I.D.1.6-r700)
PKH-3 (O.D.4.0	I.D.2.2-r740)

17