Mitsubishi Electric PUH-P1.6VGA Operating manual

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. SAFETY PRECAUTION··································2
2. COMBINATION OF INDOOR AND OUTDOOR UNITS ···4
3. PART NAMES AND FUNCTIONS··················4
4. SPECIFICATIONS···········································5
5. DATA·······························································8
6. OUTLINES AND DIMENSIONS····················11
7. WIRING DIAGRAM·······································15
8. REFRIGERANT SYSTEM DIAGRAM ·············17
9. DISASSEMBLY PROCEDURE·····················18
10. PARTS LIST··················································22
11. OPTIONAL PARTS ························Back cover
Outdoor unit
[model names]
PUH-P1.6VGA
PUH-P2VGA
PUH-P2.5VGA
PUH-P3VGA
PUH-P3YGA
PUH-P4YGA
PUH-P5YGA
PUH-P6YGA
No.OC180
1999
The Slim Line.
From Mitsubishi Electric.
R407C
[Service Ref.]
PUH-P1.6VGA
PUH-P2VGA
PUH-P2.5VGA
PUH-P3VGA
PUH-P3YGA
PUH-P4YGA
PUH-P5YGA
PUH-P6YGA

2
Cautions for using with the outdoor unit which adopts R407C refrigerant.
·Do not use the existing refrigerant piping.
-The old refrigerant and refrigerant oil in the existing piping contains a large amount of chlorine which may cause the
refrigerant oil of the new unit to deteriorate.
· Do not use copper pipes which are broken, deformed or discolour .
In addition, be sure that the inner surfaces of the pipes are clean, free of hazardous sulphur and oxides, or have no dust /
dirt, shaving particles, oils, moisture or any other contamination.
-If there is a large amount of residual oil (hydraulic oil, etc.) inside the piping and joints, deterioration of the refrigerant 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 ester oil, ether oil or alkyl benzene (small amount) as the refrigerant oil to coat flares and flange connections.
-The refrigerant oil will degrade if it is mixed with a large amount of mineral oil.
Use liquid refrigerant to fill the system.
-If gas refrigerant is used to fill the system, the composition of the refrigerant in the cylinder will change and performance
may drop.
· Do not use a refrigerant other than R407C.
-If another refrigerant (R22, etc.) is used, the chlorine in the refrigerant may cause the refrigerant 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 refrigerant oil to deteriorate.
· Do not use the following tools that are used with conventional refrigerant.
(Gauge manifold , charge hose, gas leak detector, reverse flow check valve, refrigerant charge base, vacuum gauge,
refrigerant recovery equipment)
-If the conventional refrigerant and refrigerant oil are mixed in the R407C, the refrigerant may deteriorated.
-If water is mixed in the R407C, the refrigerant oil may deteriorate.
-Since R407C does not contain any chlorine, gas leak detectors for conventional refrigerant will not react to it.
· Do not use a charging cylinder.
-Using a charging cylinder may cause the refrigerant to deteriorate.
· Be especially careful when managing the tools.
-if dust, dirt, or water gets in the refrigerant cycle, the refrigerant may deteriorate.
· Do not use the drier which is sold in the field.
-The drier for R407C refrigerant is pre-attached to outdoor unit refrigerant circuit.
-Some drier in the field are not in conformity with R407C refrigerant .
1SAFETY PRECAUTION

3
[3] Refrigerant recharging
(1) Refrigerant recharging process
1Direct charging from the cylinder.
·R407C cylinder are available on the market has a syphon pipe.
·Leave the syphon pipe cylinder standing and recharge it.
(By liquid refrigerant)
(2) Recharge in refrigerant leakage case
·After recovering the all refrigerant in the unit, proceed to working.
·Do not release the refrigerant in the air.
·After completing the repair service, recharge the cycle with the specified amount of
liquid refrigerant.
Gravimeter
Unit
[1] Service tools
Use the below service tools as exclusive tools for R407C refrigerant.
No. Tool name Specifications
1Gauge manifold ·Only for R407C.
·Use the existing fitting SPECIFICATIONS. (UNF7/16)
·Use high-tension side pressure of 3.43MPa·G or over.
2Charge hose ·Only for R407C.
·Use pressure performance of 5.10MPa·G or over.
3Electronic scale
4Gas leak detector ·Use the detector for R407C.
5Adapter for reverse flow check. ·Attach on vacuum pump.
6Refrigerant charge base.
7Refrigerant cylinder. ·For R407C ·Top of cylinder (Brown)
·Cylinder with syphon
8Refrigerant recovery equipment.
[2] Notice on repair service
·After recovering the all refrigerant in the unit, proceed to working.
·Do not release refrigerant in the air.
·After completing the repair service, recharge the cycle with the specified amount of
liquid refrigerant.

4
3 PART NAMES AND FUNCTIONS
2 COMBINATION OF INDOOR AND OUTDOOR UNITS
CHARGELESS SYSTEM
PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT.(Max.30m)
The refrigerant circuit with LEV(Linear Expansion Valve) and a large accumulator 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. Heretofore it is completely eliminated. This unique system improves the quality
and reliability of the work done.It also helps to speed up the installation time.
Air intake
Air outlet
(Expels warm air during cooling)
Air intake
Air outlet
Air intake Air outlet
Air intake
Air outlet
Indoor unit Outdoor unit
Service Ref.
PLH-P•KAH
PCH-P•GAH
PKH-P•GALH
PKH-P•FALH
OC181
OC182
OC176
OC175
Service
Manual No. 1.6
VGA
—
—
2
VGA
—
2.5
VGA
—
VGA
—
YGA
—
4
YGA
—
6
YGA
—
—
5
YGA
—
—
3
PUH-P1.6VGA PUH-P2VGA
PUH-P2.5VGA
PUH-P3VGA
PUH-P3YGA
PUH-P4YGA PUH-P5YGA
PUH-P6YGA

5
4 SPECIFICATIONS
kW
A
A
kW
kW
K
/min(CFM )
W
dB(A)
dB(A)
mm,(in.)
mm,(in.)
mm,(in.)
kg,(lbs)
kg,(lbs)
cc
mm,(in.)
mm,(in.)
Function
Power supply (phase, cycle, voltage)
Input
Running current
Starting current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Heat exchanger
Fan(drive) oNo.
Fan motor output
Airflow
Crankcase heater
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
OUTDOOR UNIT
REFRIGERANT PIPING
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Notes1.Rating Conditions (JIS B8616)
Cooling :Indoor : 27˚C(80˚F)DB. 19˚C (66˚F)WB Outdoor : 35˚C(95˚F)DB. 24˚C (75˚F)WB
Heating :Indoor : 20˚C(68˚F)DB. Outdoor : 7˚C(45˚F)DB. 6˚C (43˚F)WB
Refrigerant piping length (one way) : 5m (16ft)
3. Above deta based on indicated voltage
Indoor Unit 1 phase 240V 50Hz
Outdoor Unit 1 phase 240V 50Hz
2. Guaranteed operating range
Upper limit
Lower limit
Upper limit
Lower limit
Indoor
32˚C DB, 23˚C WB
21˚C DB, 15˚C WB
27˚C DB
20˚C DB
Outdoor
43˚C DB
-5˚C DB
24˚C DB, 18˚C WB
-5˚C DB, -6˚C WB
Cooling
Heating
Service Ref. PUH-P1.6VGA PUH-P2VGA PUH-P2.5VGA
Cooling
1.71
7.66 36
RE277VHSM
1.3
45(1,590)
30
46
48
650(25-5/8)
55(121)
2.6(5.7)
570 (Ester)MEL56
Single, 50Hz, 220-240V
74
Munsell 5Y 8/1
Linear Expansion Valve
Hermetic
NE38VMJM
1.7
Line start
Inner thermostat, HP switch, Discharge thermo
Plate fin coil
Propeller (direct) o1
0.07
55(1,940)
Reverse cycle
49
900(35-7/16)
330+20(13+3/4)
71(157)
R407C
3.1(6.8)
9.52(3/8)
15.88(5/8)
Flared
Flared
Heating
1.83
8.19
Cooling
2.63
11.78
38
48
855(33-5/8)
1200 (Ester)MEL56
77
NE41VMJM
1.9
50(1,770)
50
82(181)
3.3(7.3)
Max. 50m
Max. 50m
Heating
2.58
11.55
Cooling
2.48
11.11
Heating
2.57
11.51
Max. 40m
Max. 40m

6
kW
A
A
kW
kW
K
/min(CFM )
W
dB(A)
dB(A)
mm,(in.)
mm,(in.)
mm,(in.)
kg,(lbs)
kg,(lbs)
cc
mm,(in.)
mm,(in.)
Function
Power supply (phase, cycle, voltage)
Input
Running current
Starting current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Heat exchanger
Fan(drive) oNo.
Fan motor output
Airflow
Crankcase heater
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
OUTDOOR UNIT
REFRIGERANT PIPING
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Notes1.Rating Conditions (JIS B8616)
Cooling :Indoor : 27˚C(80˚F)DB. 19˚C (66˚F)WB Outdoor : 35˚C(95˚F)DB. 24˚C (75˚F)WB
Heating :Indoor : 20˚C(68˚F)DB. Outdoor : 7˚C(45˚F)DB. 6˚C (43˚F)WB
Refrigerant piping length (one way) : 5m (16ft)
3. Above deta based on indicated voltage
Indoor Unit 1 phase 240V 50Hz
Outdoor Unit 1 phase 240V 50Hz/3 phase 415V 50Hz
2. Guaranteed operating range
Upper limit
Lower limit
Upper limit
Lower limit
Indoor
32˚C DB, 23˚C WB
21˚C DB, 15˚C WB
27˚C DB
20˚C DB
Outdoor
43˚C DB
-5˚C DB
24˚C DB, 18˚C WB
-5˚C DB, -6˚C WB
Cooling
Heating
Service Ref. PUH-P3VGA/YGA PUH-P4YGA
Cooling
3.34
14.64/5.46
Single, 50Hz, 220-240V/3-ph, 50Hz, 380-415V(4wires)
93/41
NE52VNJM/NE52YDJM
2.5
Propeller (direct) o1
0.07
50(1,770)
49
51
855(33-5/8)
82(181)
3.7(8.2)
15.88(5/8)
Munsell 5Y 8/1
Linear Expansion Valve
Hermetic
Line start
Plate fin coil
38
Reverse cycle
900(35-7/16)
330+20(13+3/4)
R407C
1,600(Ester)MEL56
9.52(3/8)
Flared
Flared
Max. 50m
Max. 50m
Heating
3.52
15.43/5.76
Cooling
3.36
5.49
3-ph, 50Hz, 380-415V(4wires)
45
NE56YDJM
2.7
Propeller (direct) o2
0.07+0.07
85(3,000)
51
53
1,260(49-5/8)
96(212)
4.0(8.8)
19.05(3/4)
Heating
3.54
5.79
Anti-phase protector, thermal relay
Discharge thermo, HP switch
Internal thermostat
HP switch
Discharge thermo
Thermal relay
Discharge thermo, HP switch
Anti-phase protector

7
kW
A
A
kW
kW
K
/min(CFM )
W
dB(A)
dB(A)
mm,(in.)
mm,(in.)
mm,(in.)
kg,(lbs)
kg,(lbs)
cc
mm,(in.)
mm,(in.)
Function
Power supply (phase, cycle, voltage)
Input
Running current
Starting current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Heat exchanger
Fan(drive) oNo.
Fan motor output
Airflow
Crankcase heater
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
OUTDOOR UNIT
REFRIGERANT PIPING
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Notes1.Rating Conditions (JIS B8616)
Cooling :Indoor : 27˚C(80˚F)DB. 19˚C (66˚F)WB Outdoor : 35˚C(95˚F)DB. 24˚C (75˚F)WB
Heating :Indoor : 20˚C(68˚F)DB. Outdoor : 7˚C(45˚F)DB. 6˚C (43˚F)WB
Refrigerant piping length (one way) : 5m (16ft)
3. Above deta based on indicated voltage
Indoor Unit 1 phase 240V 50Hz
Outdoor Unit 3 phase 415V 50Hz
2. Guaranteed operating range
Upper limit
Lower limit
Upper limit
Lower limit
Indoor
32˚C DB, 23˚C WB
21˚C DB, 15˚C WB
27˚C DB
20˚C DB
Outdoor
43˚C DB
-5˚C DB
24˚C DB, 18˚C WB
-5˚C DB, -6˚C WB
Cooling
Heating
Service Ref. PUH-P5YGA PUH-P6YGA
Cooling
6.36
10.17 84
HE101YAA
5.1
100(3,530)
55
57
3-ph, 50Hz, 380-415V(4wires)
Munsell 5Y 8/1
Linear Expansion Valve
Hermetic
Line start
Internal thermostat, Anti-phase protector, thermal relay, HP switch, Discharge thermo, LP switch
Plate fin coil
Propeller (direct) o2
0.075+0.075
38
Reverse cycle
1,050(41-5/16)
330+20(13+3/4)
1,260(49-5/8)
122(269)
R407C
5.8(12.8)
2,000(Ester)MEL32
9.52(3/8)
19.05(3/4)
Flared
Flared
Max. 50m
Max. 50m
Heating
6.43
10.28
Cooling
5.25
8.39 79
HE86YAA
4.3
95(3,360)
53
55
Heating
5.47
8.74

8
5 DATA
1. REFILLING REFRIGERANT CHARGE (R407C : kg)
2. COMPRESSOR TECHNICAL DATA
PUH-P1.6VGA
PUH-P2VGA
PUH-P2.5VGA
PUH-P3VGA
PUH-P3YGA
PUH-P4YGA
PUH-P5YGA
PUH-P6YGA
Piping length (one way)
10m 20m 30m 40m 50m Factory
charged w
2.4
2.5
2.7
2.9
2.9
3.4
5.1
5.1
2.5
2.6
2.8
3.1
3.1
3.7
5.4
5.4
2.6
3.1
3.3
3.7
3.7
4.0
5.8
5.8
3.0
3.7
3.9
4.3
4.3
4.7
6.5
6.5
–
–
4.5
4.9
4.9
5.4
7.2
7.2
2.6
3.1
3.3
3.7
3.7
4.0
5.8
5.8
Service Ref.
Compressor model
Winding
Resistance
( ' )
U-V
(R-C)
U-W
(S-C)
W-V
U-V
(R-C)
U-W
(S-C)
W-V
RE277VHSM
Unit
PUH-P1.6VGA
PUH-P2VGA
PUH-P2.5VGA PUH-P3VGA PUH-P3YGA PUH-P4YGA
NE38VMJM NE41VMJM NE52VNJM NE52YDJM NE56YDJM
1.80
3.00
–
0.85
2.15
–
0.79
2.19
–
0.64
1.67
–
3.70
3.70
3.70
3.20
3.20
3.20
Unit
Compressor model
Winding
Resistance
( ' )
PUH-P5YGA PUH-P6YGA
HE86YAA HE101YAA
2.40
2.40
2.40
2.20
2.20
2.20
at 20˚C
at 20˚C

9
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROTIMATE
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
PUH-P1.6VGA COOLING
NOTCH
HEATING
46
SPL(db(A))
48
LINE
3. NOISE CRITERION CURVES
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROTIMATE
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
COOLING
NOTCH
HEATING
SPL(db(A)) LINE
PUH-P2VGA 48
49
90
80
70
60
50
40
30
20
10
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
APPROTIMATE
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
COOLING
NOTCH
HEATING
SPL(db(A)) LINE
PUH-P2.5VGA 48
50
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROTIMATE
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
COOLING
NOTCH
HEATING
SPL(db(A)) LINE
49
51
PUH-P3VGA/YGA

10
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROTIMATE
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
COOLING
NOTCH
HEATING
SPL(db(A)) LINE
53
55
PUH-P5YGA
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROTIMATE
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
COOLING
NOTCH
HEATING
SPL(db(A)) LINE
55
57
PUH-P6YGA
Ambient temperature 27:
Test conditions are based on JIS Z8731
1m
1m
MICROPHONE
UNIT
GROUND
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROTIMATE
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
COOLING
NOTCH
HEATING
SPL(db(A)) LINE
51
53
PUH-P4YGA