Mitsubishi Electric PU-P2VGA Operating manual

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. SAFETY PRECAUTION··································3
2. COMBINATION OF INDOOR AND OUTDOOR UNITS ···5
3. PART NAMES AND FUNCTIONS··················5
4. SPECIFICATIONS···········································6
5. DATA·····························································12
6. OUTLINES AND DIMENSIONS····················15
7. WIRING DIAGRAM·······································19
8. REFRIGERANT SYSTEM DIAGRAM ·············23
9. DISASSEMBLY PROCEDURE·····················25
10. PARTS LIST··················································29
11. OPTIONAL PARTS ························Back cover
Outdoor unit
[model names]
PUH-P1.6VGA PU-P1.6VGA
PUH-P1.6YGA
PUH-P2VGA PU-P2VGA
PUH-P2YGA
PUH-P2.5VGA PU-P2.5VGA
PUH-P2.5YGA
PUH-P3VGA PU-P3VGA
PUH-P3YGA PU-P3YGA
PUH-P4YGA PU-P4YGA
PUH-P5YGA PU-P5YGA
PUH-P6YGA PU-P6YGA
No.OC180
REVISED EDITION-A
1999
R407C
[Service Ref.]
PUH-P1.6VGA PU-P1.6VGA
PUH-P1.6YGA
PUH-P2VGA PU-P2VGA
PUH-P2YGA
PUH-P2.5VGA PU-P2.5VGA
PUH-P2.5VGA1PU-P2.5VGA1
PUH-P2.5YGA
PUH-P2.5YGA1
PUH-P3VGA PU-P3VGA
PUH-P3YGA PU-P3YGA
PUH-P4YGA PU-P4YGA
PUH-P5YGA PU-P5YGA
PUH-P6YGA PU-P6YGA
Revision:
●PUH-P1.6YGA, -P2YGA, -P2.5YGA,
PUH-P2.5VGA1, -P2.5YGA1and
PU-P1.6VGA, -P2VGA, -P2.5VGA,
PU-P3VGA, -P3YGA, -P4YGA, -P5YGA,
PU-P6YGA, -P2.5VGA1 added in
Revised Edition-A.
●Please destroy OC180.
OC180A--1.qxp 3/3/00 8:43 AM Page 1

OC180A--1.qxp 3/3/00 8:43 AM Page 2

3
1SAFETY PRECAUTION
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 refriger-
ant 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.
OC180A--1.qxp 3/3/00 8:43 AM Page 3

4
[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.
OC180A--1.qxp 3/3/00 8:43 AM Page 4

5
2 COMBINATION OF INDOOR AND OUTDOOR UNITS
3 PART NAMES AND FUNCTIONS
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
PU(H)-P1.6VGA
PUH-P1.6YGA PU(H)-P2VGA, PUH-P2YGA
PU(H)-P2.5VGA(1), PUH-P2.5YGA(1)
PU(H)-P3VGA, PU(H)-P3YGA
PU(H)-P4YGA PU(H)-P5YGA
PU(H)-P6YGA
Heat pump typeOutdoor unit
PUH-P Cooling only type PU-P
PLH-P·KAH
PCH-P·GAH
PKH-P·GALH
PKH-P·FALH
PSH-P·GAH
PLA-P·KA
PCA-P·GA
PKA-P·GAL
PKA-P·FAL
PSA-P·GA
OC181
OC182
OC176
OC175
OC212
OC181
OC182
OC176
OC175
OC212
YGA
—
—
—
—
—
—
—
YGA
—
—
—
—
—
—
—
YGA
—
—
—
—
—
—
YGA
—
—
—
—
—
—
VGA
—
—
—
—
—
—
VGA(1)
—
—
—
—
—
—
—
VGA
—
—
—
—
—
—
—
VGA
—
—
—
—
—
—
—
—
YGA
—
—
—
—
YGA
—
—
—
—
YGA
—
—
YGA
—
—
VGA
—
—
VGA(1)
—
—
—
—
YGA(1)
—
—
—
—
YGA
—
—
—
—
VGA
—
—
—
—
VGA
—
—
—
—
—
—
YGA
—
—
—
—
—
—
Indoor unit
1.6Service
Manual No.
Service Ref. 2 2.5 3 4 5 6 1.6 2 2.5 3 4 5 6
Heat pump with electric heater
Heat pump without electric heater or Cooling only
REVISED
EDITION-A
REVISED
EDITION-A
REVISED
EDITION-A
REVISED
EDITION-A
REVISED
EDITION-A
REVISED
EDITION-A
REVISED
EDITION-A
REVISED
EDITION-A
OC180A--1.qxp 3/3/00 8:43 AM Page 5

6
4 SPECIFICATIONS
kW
A
A
kW
W
kW
K
/min(CFM )
dB
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
L
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
Crankcase heater
Heat exchanger
Fan Fan(drive) oNo.
Fan motor output
Airflow
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 (ISO T1)
Cooling :Indoor : D.B. 27˚C(80˚F), W.B.19˚C (66˚F) Outdoor : D.B. 35˚C(95˚F), W.B. 24˚C (75˚F)
Heating :Indoor : D.B. 20˚C(68˚F) Outdoor : D.B. 7˚C(45˚F), W.B. 6˚C (43˚F)
Refrigerant piping length (one way) : 5m (16ft)
3. Above data 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
D.B. 35˚C, W.B. 22.5˚C
D.B. 19˚C, W.B. 15˚C
D.B. 28˚C
D.B. 17˚C
Outdoor
D.B. 46˚C
D.B. -5˚C
D.B. 24˚C, W.B. 18˚C
D.B. -11˚C, W.B. -12˚C
Cooling
Heating
Service Ref. PUH-P1.6VGA / YGA PUH-P2VGA / YGA PUH-P2.5VGA(1) / YGA(1)
Cooling
1.71
7.66 / 2.67
36 / 20
RE277VHSM / RE277YFKM
1.3
30
45(1,590)
46
48
650(25-5/8)
55(121)
2.6(5.7)
0.57 (Ester)MEL56
Single, 50Hz, 220-240V/3-ph, 50Hz, 380-415V(4wires)
74 / 30
Munsell 5Y 8/1
Linear Expansion Valve
Hermetic
NE38VMJM / NE38YEJM
1.7
Line start
Inner thermostat, HP switch, Discharge thermo. / Thermal relay, Discharge thermo, HP switch, Anti-phase protector.
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 / 2.86
Cooling
2.63
11.78 / 4.11
38
48
855(33-5/8)
1.2 (Ester)MEL56
77 / 32
NE41VMJM / NE41YEJM
1.9
50(1,770)
50
82(181)
3.3(7.3)
Max. 50m
Max. 50m
Heating
2.58
11.55 / 4.03
Cooling
2.48
11.11 / 3.88
Heating
2.57
11.51 / 4.02
Max. 40m
Max. 40m
1.Heat pump
OC180A--1.qxp 3/3/00 8:43 AM Page 6

7
kW
A
A
kW
W
kW
K
/min(CFM )
dB
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
L
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
Crankcase heater
Heat exchanger
Fan Fan(drive) oNo.
Fan motor output
Airflow
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 (ISO T1)
Cooling :Indoor : D.B. 27˚C(80˚F), W.B. 19˚C(66˚F) Outdoor : D.B. 35˚C(95˚F), W.B. 24˚C(75˚F)
Heating :Indoor : D.B. 20˚C(68˚F) Outdoor : D.B. 7˚C(45˚F), W.B. 6˚C(43˚F)
Refrigerant piping length (one way) : 5m (16ft)
3. Above data 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
D.B. 35˚C, W.B. 22.5˚C
D.B. 19˚C, W.B. 15˚C
D.B. 28˚C
D.B. 17˚C
Outdoor
D.B. 46˚C
D.B. -5˚C
D.B. 24˚C, W.B. 18˚C
D.B. -11˚C, W.B. -12˚C
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
38
Plate fin coil
Reverse cycle
900(35-7/16)
330+20(13+3/4)
R407C
1.6 (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
OC180A--1.qxp 3/3/00 8:43 AM Page 7

8
kW
A
A
kW
W
kW
K
/min(CFM )
dB(A)
dB(A)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
L
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
Crankcase heater
Heat exchanger
Fan Fan(drive) oNo.
Fan motor output
Airflow
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 (ISO T1)
Cooling :Indoor : D.B. 27˚C(80˚F), W.B. 19˚C (66˚F) Outdoor : D.B. 35˚C(95˚F), W.B. 24˚C (75˚F)
Heating :Indoor : D.B. 20˚C(68˚F) Outdoor : D.B. 7˚C(45˚F), W.B. 6˚C (43˚F)
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
2. Guaranteed operating range
Upper limit
Lower limit
Upper limit
Lower limit
Indoor
D.B. 35˚C, W.B. 22.5˚C
D.B. 19˚C, W.B. 15˚C
D.B. 28˚C
D.B. 17˚C
Outdoor
D.B. 46˚C
D.B. -5˚C
D.B. 24˚C, W.B. 18˚C
D.B. -11˚C, W.B. -12˚C
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
38
Plate fin coil
Propeller (direct) o2
0.075+0.075
Reverse cycle
1,050(41-5/16)
330+20(13+3/4)
1,260(49-5/8)
122(269)
R407C
5.8(12.8)
2.0 (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
OC180A--1.qxp 3/3/00 8:43 AM Page 8

9
kW
A
A
kW
W
kW
K
/min(CFM )
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
L
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
Crankcase heater
Heat exchanger
Fan Fan(drive) oNo.
Fan motor output
Airflow
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
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Notes1.Rating Conditions (ISO T1)
Cooling :Indoor : 27˚C(80˚F)DB. 19˚C (66˚F)WB Outdoor : 35˚C(95˚F)DB. 24˚C (75˚F)WB
Refrigerant piping length (one way) : 5m (16ft)
3. Above data based on indicated voltage
Indoor Unit 1 phase 240V 50Hz
Outdoor Unit 1 phase 240V 50Hz
2. Guaranteed operating range
Upper limit
Lower limit
Indoor
D.B. 35˚C, W.B. 22.5˚C
D.B. 19˚C, W.B. 15˚C
Outdoor
D.B. 46˚C
D.B. -5˚C
Cooling
Service Ref. PU-P1.6VGA PU-P2VGA PU-P2.5VGA(1)
Cooling
1.71
7.66
36
RE277VHSM
1.3
30
45(1,590)
46
650(25-5/8)
55(121)
2.6(5.7)
0.57 (Ester)MEL56
Single, 50Hz, 220-240V
2.48
11.11
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)
—
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
Cooling
38
48
855(33-5/8)
1.2 (Ester)MEL56
2.63
11.78
77
NE41VMJM
1.9
50(1,770)
82(181)
3.3(7.3)
Max. 50m
Max. 50m
Cooling
Max. 40m
Max. 40m
2. Cooling only type
OC180A--1.qxp 3/3/00 8:43 AM Page 9

10
kW
A
A
kW
W
kW
K
/min(CFM )
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
L
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
Crankcase heater
Heat exchanger
Fan Fan(drive) oNo.
Fan motor output
Airflow
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
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Notes1.Rating Conditions (ISO T1)
Cooling :Indoor : D.B. 27˚C(80˚F), W.B. 19˚C(66˚F) Outdoor : D.B. 35˚C(95˚F), W.B. 24˚C(75˚F)
Refrigerant piping length (one way) : 5m (16ft)
3. Above data 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
Indoor
D.B. 35˚C , W.B. 22.5˚C
D.B. 19˚C, W.B. 15˚C
Outdoor
D.B. 46˚C
D.B. -5˚C
Cooling
Service Ref. PU-P3VGA / YGA PU-P4YGA
Cooling
Single, 50Hz, 220-240V/3-ph, 50Hz, 380-415V(4wires)
3.34
14.64/5.46
93/41
NE52VNJM / NE52YDJM
2.5
Propeller (direct) o1
0.07
50(1,770)
49
855(33-5/8)
82(181)
3.7(8.2)
15.88(5/8)
Munsell 5Y 8/1
Linear Expansion Valve
Hermetic
Line start
38
Plate fin coil
—
900(35-7/16)
330+20(13+3/4)
R407C
1.6 (Ester)MEL56
9.52(3/8)
Flared
Flared
Max. 50m
Max. 50m
Cooling
3-ph, 50Hz, 380-415V(4wires)
3.36
5.49
45
NE56YDJM
2.7
Propeller (direct) o2
0.07+0.07
85(3,000)
51
1,260(49-5/8)
96(212)
4.0(8.8)
19.05(3/4)
Anti-phase protector, thermal relay
Discharge thermo, HP switch
Internal thermostat
HP switch
Discharge thermo
Thermal relay
Discharge thermo, HP switch
Anti-phase protector
OC180A--1.qxp 3/3/00 8:43 AM Page 10