Mitsubishi Electric PUMY-P125VMA1 Operating manual

TECHNICAL & SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGE ·····································2
2. SAFETY PRECAUTION····································3
3. OVERVIEW OF UNITS······································5
4. SPECIFICATIONS·············································8
5. DATA ·······························································10
6. OUTLINES AND DIMENSIONS······················18
7. WIRING DIAGRAM·········································19
8. NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION ···22
9. TROUBLESHOOTING ····································34
10. ELECTRICAL WIRING····································78
11. REFRIGERANT PIPING TASKS·····················81
12. DISASSEMBLY ···············································86
13. PARTS LIST ····················································92
Outdoor unit
[Model name] [Service Ref.]
PUMY-P125VMA PUMY-P125VMA
PUMY-P125VMA1
PUMY-P125YMA PUMY-P125YMA
PUMY-P125YMA1
No.OC272
REVISED EDITION-B
2004
SPLIT-TYPE, HEAT PMUP AIR CONDITIONERS
R407C
Revision :
• PUMY-P125VMA1is
added in REVISED
EDITION-B.
• “9-8.TEST POINT DIA-
GRAM ” has been
added in REVISED
EDITION-B.
OUTDOOR UNIT
• Please void OC272
REVISED EDITION-A.
Model name
indication
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2
1 TECHNICAL CHANGE
OC272 REVISED EDITION-A
PUMY-P125YMA ➔PUMY-P125YMA1
1. Addition of new function (Auto Change Over)
PUMY-P125YMA : Not equipped
PUMY-P125YMA1: Equipped
2. Difference of operation switching logic for the outdoor output connector (CN3D)
PUMY-P125YMA : CN3D 1-2 ······ OPEN : Heating CLOSE : Cooling
PUMY-P125YMA1: CN3D 1-2 ······ OPEN : Cooling CLOSE : Heating
3. Difference of the role of SW5-1 (function selection switch)
PUMY-P125YMA : Fix the operation frequency ······························ ON : Fix OFF : Normal
PUMY-P125YMA1: Auto Change Over from Remote Controller ······ ON : Enable OFF : Disable
OC272 REVISED EDITION-B
PUMY-P125VMA ➔PUMY-P125VMA1
•Partial Change on Electrical Wiring:
Change of reactor (DCL).
Only 2 reactor (DCL1,2) are adopted. (Previously 4)
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SAFETY PRECAUTION2
3
[2] 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.
[1] Cautions for 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.
Cautions for units utilizing refrigerant R407C
CAUTIONS RELATED TO NEW REFRIGERANT
Do not use the existing refrigerant piping.
The old refrigerant and lubricant in the existing piping
contains a large amount of chlorine which may cause the
lubricant deterioration of the new unit.
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 lubricant
will result.
Use ESTR , ETHER or HAB as the lubricant to
coat flares and flange connection parts.
If large amount of mineral oil enter, that can cause
deterioration of refrigerant oil etc.
Use liquid refrigerant to charge 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 R407C.
If another refrigerant (R22, etc.) is used, the chlorine in the
refrigerant may cause the lubricant deterioration.
Use a vacuum pump with a reverse flow check valve.
The vacuum pump oil may flow back into the refrigerant
cycle and cause the lubricant deterioration.
Store the piping to be used during installation
indoors with keep both ends 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. Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
Gravimeter
Unit
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4
[3] 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 R134a or 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.
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5
3OVERVIEW OF UNITS
3-1. UNIT CONSTRUCTION
5HP
Outdoor unit
PUMY-P125VMA
PUMY-P125VMA1
PUMY-P125YMA
PUMY-P125YMA1
Indoor unit
that can be
connected
Capacity
Number of units
Total system wide capacity
Type 20~Type 125
1~8 units
50~130% of outdoor unit capacity
CMY-Y62-C-E CMY-Y64-C CMY-Y68
Branch header
(2 branches) Branch header (4 branches) Branch header (8 branches)
CMY-S65
Multi distribution
Piping on outdoor
unit
(5 branches)
Branching pipe
components
Decorative panel
20
25
32
40
50
63
71
80
100
125
–
–
32VKM-A
40VKM-A
50VKM-A
63VKM-A
–
80VAM-A
100VAM-A
125VAM-A
20VLMD-A
25VLMD-A
32VLMD-A
40VLMD-A
50VLMD-A
63VLMD-A
–
80VLMD-A
100VLMD-A
125VLMD-A
20VML-A / VMM-A
25VML-A / VMM-A
32VML-A / VMM-A
40VMH-A / VMM-A
50VMH-A / VMM-A
63VMH-A / VMM-A
71VMH-A / VMM-A
80VMH-A / VMM-A
100VMH-A / VMM-A
125VMH-A / VMM-A
20VM-A
25VM-A
32VM-A
40VM-A
50VM-A
63VM-A
71VM-A
80VM-A
100VM-A
125VM-A
20VAM-A
25VAM-A
32VGM-A
40VGM-A
50VGM-A
63VFM-A
–
–
100VFM-A
–
20VLEM-A
25VLEM-A
32VLEM-A
40VLEM-A
50VLEM-A
63VLEM-A
–
–
–
–
20VLRM-A
25VLRM-A
32VLRM-A
40VLRM-A
50VLRM-A
63VLRM-A
–
–
–
–
–
–
–
40VGM-A
–
63VGM-A
–
–
100VGM-A
125VGM-A
PLFY-P PLFY-P PEFY-P PDFY-P PKFY-P PCFY-P PFFY-P PFFY-P
Capacity
Model Cassette Ceiling
4-way flow 2-way flow
20VBM-A
25VBM-A
32VBM-A
40VBM-A
–
–
–
–
–
–
PMFY-P
1-way flow Ceiling
Concealed Ceiling mounted
built-in Ceiling
Suspended
Wall Mounted Floor standing
Exposed Concealed
Remote
controller
Name
Model number
Functions
M-NET remote controller
PAR-F27MEA-E
• A handy remote controller for use in conjunction
with the Melans centralized management system.
• Addresses must be set.
• Addresses setting is not necessary.
•
Only the indoor unit for MA remote controller
(the end of model name is -A) can be used.
MA remote controller
PAR-20MAA-E
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6
3-2. UNIT SPECIFICATIONS
(2) Method for identifying MULTI-S model
(1) Outdoor Unit
■ Indoor unit < When using Model 80 > ■ Outdoor unit <When using model 125 >
(3) Operating temperature range
Notes D.B. : Dry Bulb Temperature
W.B. : Wet Bulb Temperature
P L F Y - P 80 V AM - A PU M Y - P 125 V M A
PAC type
AM
KM
M
KM
LMD
Frequency
conversion
controller
Refrigerant
R407C/R22
commonness
Refrigerant
R407C
NEW frequency converter
one-to-many air conditioners
(flexible design type)
Indicates equivalent
to Cooling capacity
Indicates equivalent
to Cooling capacity
Power supply
V: Single phase
220-230-240V 50Hz
220V 60Hz
Power supply
V: Single phase
220-230-240V 50Hz
Y: 3-phase
380-400-415V 50Hz
380V 60Hz
L : Ceiling cassette
K : Wall-mounted type
E : Hidden skylight type
C: Ceiling suspended type
M: Ceiling cassette type
F : Floor standing type
}
M-NET
control
M-NET control
MA control Sub-number
Frequency
conversion
controller
Outdoor unit
MULTI-S
Service Ref.
w
PUMY-P125VMA
PUMY-P125VMA1
PUMY-P125YMA
PUMY-P125YMA1
Capacity Cooling (kW)
Heating (kW)
14.0
16.0
3.5Motor for compressor (kW)
Cooling
W.B. 15~24°C
D.B. -5~46°C
Heating
D.B. 15~27°C
W.B. -15~15.5°C
Indoor-side intake air temperature
Outdoor-side intake air temperature
Cooling / Heating capacity indicates the maximum value at operation under the following condition.
w. Cooling Indoor : D.B. 27°C / W.B. 19.0°C
Outdoor : D.B. 35°C
Heating Indoor : D.B. 20°C
Outdoor : D.B. 7°C / W.B. 6°C
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7
3-3. SYSTEM LAYOUT
3-3-1. System layout
One outdoor unit using branching connectors can be connected to a maximum of eight indoor units.
■Examples of a branching method
A
B
a
indoor
1
C
b
indoor
2
D
c
indoor
3
e
d
indoor
4
indoor
5
First branch
(branching connector)
Outdoor unit
3-3-2. Notes on the connection of indoor and outdoor units
3-3-3. Capacity for outdoor unit
Note: When the total capacity of indoor units exceeds the capacity of the outdoor unit (more than 100%), the rated power of
each indoor unit will be less when they are running simultaneously.
(1) Branching pipe
Model
Branching connector
CMY-Y62C-E
CMY-Y64-C
CMY-Y68
CMY-S65
2
4
8
5
NUMBER OF BRANCHING POINTS
(2) Examples of System Construction (All models)
125
80 40 40
PIping method Total capacity of
indoor units.
160
Outdoor unit
Indoor units
Outdoor unit
Indoor unit
Type 20 ~ Type 125
PUMY-P125VMA
PUMY-P125VMA1
PUMY-P125YMA
PUMY-P125YMA1
1~8 units
63~163
Indoor unit that can connected
Available capacity of indoor unit
Total capacity of units that can be included system
(50-130% of outdoor unit capacity)
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8
4 SPECIFICATIONS
PUMY-P125VMA
PUMY-P125VMA1
14.0
6.10
28.3-27.1-26.0
98
17
16.0
6.03
28.0-26.7-25.7
98
17
Single phase 220-230-240V 50Hz
Molten-galvanized steel plate (with polyester coating), ivory white <5Y 8/1>
1280 o1020 o350 (+30)
Crossover fin
EEV48FAM
Fully enclosed type o1
Frequency converter start
3.5
Cooling 27-100% Heating 25-100%
1.9 (104Hz)
—
1.4 (MEL32)
Propeller (direct) o2
90(3,177)
60 o2
Reverse cycle
—
High pressure pressure sensor (3.0MPa)
Thermal switch
Thermal switch
Overheating, Over current protection
54
127(280)
19.05
9.52
R407C o8.5
Expansion valve
Item Service Ref. Unit
Standard performance Heating Cooling
Rated Cooling capacity
Rated power consumption
Operating current
Operating power factor
Starting current
Rated Heating capacity
Rated power consumption
Operating current
Operating power factor
Starting current
Rated power supply
Type ocharge amount
Control method
External finish (Munsell colour-coded markings)
Dimensions H oW oD (Note 1)
Heat exchanger type
Defrost method
Pressure gauge
Noise level
Weight
Refrigerant pipe size
Refrigerant
Model
Type oquantity
Starting method
Motor output
Capacity control
Daily cooling capacity
Heater <crankcase>
Refrigerating oil (Model)
Type oquantity
Airflow
Motor output
High pressure protection
Compressor protection
Blower protection
Frequency converter circuit
Compressor
Protection devices
Gas
Liquid
Fan
kW
kW
A
%
A
kW
kW
A
%
A
mm
kW
%
Legal tons
W
L
k/min(CFM)
W
dB
kg(lbs)
[mm
[mm
kg
Note 1: External dimensions in parentheses indicate the dimensions of protruding parts.
Note 2: Rating conditions (JIS B 8616)
Cooling : Indoor : D.B. 27:W.B. 19:
: Outdoor : D.B. 35:W.B. 24:
Heating : Indoor : D.B. 20:
: Outdoor : D.B. 7:W.B. 6:
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9
PUMY-P125YMA
PUMY-P125YMA1
14.0
5.95
9.6-9.1-8.8
94
8.0
16.0
5.58
9.2-8.8-8.5
92
8.0
3 phase 380-400-415V 50Hz
Molten-galvanized steel plate (with polyester coating), ivory white <5Y 8/1>
1280 o1020 o350 (+30)
Crossover fin
EEV48FAK
Fully enclosed type o1
Frequency converter start
3.5
Cooling 27-100% Heating 25-100%
1.9 (104Hz)
—
1.4 (MEL32)
Propeller (direct) o2
90(3,177)
60 o2
Reverse cycle
—
High pressure pressure sensor (3.0MPa)
Thermal switch
Thermal switch
Overheating, Over current protection
54
127(280)
19.05
9.52
R407C o8.5
Expansion valve
Item Service Ref. Unit
Standard performance Heating Cooling
Rated Cooling capacity
Rated power consumption
Operating current
Operating power factor
Starting current
Rated Heating capacity
Rated power consumption
Operating current
Operating power factor
Starting current
Rated power supply
Type ocharge amount
Control method
External finish (Munsell colour-coded markings)
Dimensions H oW oD (Note 1)
Heat exchanger type
Defrost method
Pressure gauge
Noise level
Weight
Refrigerant pipe size
Refrigerant
Model
Type oquantity
Starting method
Motor output
Capacity control
Daily cooling capacity
Heater <crankcase>
Refrigerating oil (Model)
Type oquantity
Airflow
Motor output
High pressure protection
Compressor protection
Blower protection
Frequency converter circuit
Compressor
Protection devices
Gas
Liquid
Fan
kW
kW
A
%
A
kW
kW
A
%
A
mm
kW
%
Legal tons
W
L
k/min(CFM)
W
dB
kg(lbs)
[mm
[mm
kg
Note 1: External dimensions in parentheses indicate the dimensions of protruding parts.
Note 2: Rating conditions (JIS B 8616)
Cooling : Indoor : D.B. 27:W.B. 19:
: Outdoor : D.B. 35:W.B. 24:
Heating : Indoor : D.B. 20:
: Outdoor : D.B. 7:W.B. 6:
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10
5DATA
5-1. COOLING AND HEATING CAPACITY AND CHARACTERISTICS
5-1-1. Method for obtaining system cooling and heating capacity:
To obtain the system cooling and heating capacity and the electrical characteristics of the outdoor unit, first add up the ratings
of all the indoor units connected to the outdoor unit (see table below), and then use this total to find the standard capacity with
the help of the tables on page 11 to 14.
(1) Capacity of indoor unit
Cooling
14.60 Heating
7.8
Cooling
8.9
Heating
5.14
Cooling
6.04
Heating
16.33
Capacity (kW)
Outdoor unit power consumption (kW) Outdoor unit current (A)
5-1-2. Method for obtaining the heating and cooling capacity of an indoor unit:
(1) The capacity of each indoor unit (kW) = the capacity A(or B) o
(2) Sample calculation (using the system described above in 5-1-1. (2) ):
model capacity
total model capacity of all indoor units
During cooling: During heating:
• The total model capacity of the indoor unit is:
2.8 o2 + 5.6 o2=16.8kW
Therefore, the capacity of PKFY-P25VAM-A and
PLFY-P50VLMD-A will be calculated as follows by
using the formula in 4-1-2. (1):
Model 25=14.6 o= 2.43kW
Model 50=14.6 o= 4.87kW
• The total model capacity of indoor unit is:
3.2 o2 + 6.3 o2=19.0
Therefore, the capacity of PKFY-P25VAM-A and PLFY-
P50VLMD-A will be calculated as follows by using the
formula in 4-1-2. (1):
Model 25=16.33 o= 2.75kW
Model 50=16.33 o= 5.41kW
2.8
16.8 3.2
19.0
6.3
19.0
5.6
16.8
(2) Sample calculation
1System assembled from indoor and outdoor unit (in this example the total capacity of the indoor units is greater than that of
the outdoor unit)
• Outdoor unit PUMY-P125YMA
• Indoor unit PKFY-P25VAM-A o2 , PLFY-P50VLMD-A o2
2According to the conditions in 1, the total capacity of the indoor unit will be: 28 o2 + 56 o2 = 168
3The following figures are obtained from the 168 total capacity row of the standard capacity table (page 12):
Model 20
Model Number for indoor unit
Model Capacity 22
Model 25
28
Model 32
36
Model 40
45
Model 50
56
Model 63
71
Model 71
80
Model 80
90
Model 100
112
Model 125
140
AB
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