Mitsubishi PEFY-P40VMH-E, PEFY-P50VMH-E, PEFY-P63VMH-E, PEFY-P71VMH-E, PEFY-P80VMH-E SERVICE MANUAL

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TECHNICAL & SERVICE MANUAL
Air-Conditioners For Building Application
<Indoor unit>
2004
Models
Ceiling Concealed
Series PEFY
and install the unit at the specified place.
- Improper installation may cause the unit to topple and result in injury.
• Always use an air cleaner, humidifier, electric heater, and other accessories specified by Mitsubishi Electric.
- Ask an authorized technician to install the accessories. Improper
installation by the user may result in water leakage, electric shock, or fire.
• Never repair the unit. If the air conditioner must be repaired, consult the dealer.
- If the unit is repaired improperly, water leakage, electric shock, or
fire may result.
• Do not touch the heat exchanger fins.
- Improper handling may result in injury.
• If refrigerant gas leaks during installation work, ventilate the room.
- If the refrigerant gas comes into contact with a flame, poisonous
gases will be released.
• Install the air conditioner according to this Installation Manual.
- If the unit is installed improperly, water leakage, electric shock, or
fire may result.
• Have all electric work done by a licensed electrician according to “Electric Facility Engineering Standard” and “Interior Wire Regulations”and the instructions given in this manual and al­ways use a special circuit.
- If the power source capacity is inadequate or electric work is per-
formed improperly, electric shock and fire may result.
• Securely install the cover of control box and the panel.
- If the cover and panel are not installed properly,dust or water may
enter the outdoor unit and fire or electric shock may result.
• When installing and moving the air conditioner to another site, do not charge the it with a refrigerant different from the refrig­erant specified on the unit.
- If a different refrigerant or air is mixed with the original refrigerant,
the refrigerant cycle may malfunction and the unit may be dam­aged.
• If the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration from exceeding the safety limit even if the refrigerant should leak.
- Consult the dealer regarding the appropriate measures to pre-
vent the safety limit from being exceeded. Should the refrigerant leak and cause the safety limit to be exceeded, hazards due to lack of oxygen in the room could result.
• When moving and reinstalling the air conditioner, consult the dealer or an authorized technician.
- If the air conditioner is installed improperly, water leakage, elec-
tric shock, or fire may result.
• After completing installation work, make sure that refrigerant gas is not leaking.
- If the refrigerant gas leaks and is exposed to a fan heater, stove,
oven, or other heat source, it may generate noxious gases.
• Do not reconstruct or change the settings of the protection devices.
- If the pressure switch, thermal switch, or other protection device
is shorted and operated forcibly, or parts other than those specified by Mitsubishi Electric are used, fire or explosion may result.
1. Before installation and electric work
s Before installing the unit, make sure you read all the
“Safety precautions”.
s The “Safety precautions” provide very important
points regarding safety. Make sure you follow them.
s This equipment may cause the adverse effect on the
same supply system.
s Please report to or take consent by the supply au-
thority before connection to the system.
Symbols used in the text
Warning:
Describes precautions that should be observed to prevent danger of injury or death to the user.
Caution:
Describes precautions that should be observed to prevent damage to the unit.
Symbols used in the illustrations
: Indicates an action that must be avoided.
: Indicates that impor tant instructions must be followed.
: Indicates a part which must be grounded.
: Indicates that caution should be taken with rotating parts. (This
symbol is displayed on the main unit label.) <Color: Yellow>
: Beware of electric shock (This symbol is displayed on the main
unit label.) <Color: Yellow>
Warning:
Carefully read the labels affixed to the main unit.
Warning:
• Ask the dealer or an authorized technician to install the air con­ditioner.
- Improper installation by the user may result in water leakage, elec-
tric shock, or fire.
• Install the air unit at a place that can withstand its weight.
- Inadequate strength may cause the unit to fall down, resulting in
injuries.
• Use the specified cables for wiring. Make the connections se­curely so that the outside force of the cable is not applied to the terminals.
- Inadequate connection and fastening may generate heat and cause
a fire.
• Prepare for typhoons and other strong winds and earthquakes
2. Precautions for devices that use
Caution:
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 refrigerant piping made of C1220 (Cu-DHP) phosphorus deoxidized copper as specified in the *JIS H3300 “Copper and copper alloy seamless pipes and tubes. In addition, be sure that the inner and outer surfaces of the pipes are clean and free of hazardous sulphur, oxides, dust/dirt, shaving particles, oils, moisture, or any other contaminant.
- Contaminants on the inside of the refrigerant piping may cause
the refrigerant residual oil to deteriorate.
*JIS: Japanese Industrial Standard
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 alkylbenzene (small amount) as the refrigerator oil to coat flares and flange connections.
- The refrigerator 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 seal the system, the composition of
the refrigerant in the cylinder will change and performance may drop.
Do not use a refrig
- If another refrigerant (R22, etc.) is used, the chlorine in the refrig-
erant 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.
Do not use the following tools that are used with conventional refrigerants. (Gauge manifold, charge hose, gas leak detector, reverse flow check valve, refrigerant charge base, vacuum gauge, refriger­ant recovery equipment)
- If the conventional refrigerant and refrigerator oil are mixed in the
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.
R410A or R407C refrigerant
erant other than R410A or R407C.
R410A or R407C, the refrigerant may deteriorated.
- If deteriorate.
water is mixed in the R410A or R407C, the refrigerator oil may
- Since R410A or R407C does not contain any chlorine, gas leak detectors for conventional refrigerants will not react to it.
PART NAMES AND FUNCTIONS
2
Indoor (Main) Unit
Remote controller
[Operation buttons]
[PAR-20MAA]
Once the controls are set, the same operation mode can
be repeated by simply pressing the ON/OFF button.
Air inlet
Air outlet
PAR-20MAA
ON/OFF
CENTRALLY CONTROLLED
ERROR CODE
CLOCK
ON OFF
˚C
CHECK
CHECK MODE
FILTER
TEST RUN FUNCTION
˚C
1Hr.
NOT AVAILABLE
STAND BY DEFROST
FILTER
CHECK TEST
TEMP.
TIMER SET
1
2
3
4 56879
0
C
A
B
1 [Room temperature adjustment] Button 2 [Timer/continuous] Button 3 [Selecting operation] Button 4 [Time selection] Button
[Time-setting] Button
5 [Louver] Button 6 [Fan speed adjustment] Button
7 [Up/down airflow direction] Button 8 [Ventilation] Button 9 [Checking/built-in] Button 0 [Test run] Button A [Filter] Button B [ON/OFF] Button C Position of built-in room temperature
•Never expose the remote controller to direct sunlight. Doing so can result in the erroneous measure­ment of room temperature.
•Never place any obstacle around the lower right-hand section of the remote controller. Doing so can result in the erroneous measurement of room temperature.
ABCD
SQTU
CENTRALLY CONTROLLED
STAND BY DEFROST
G
CHECK
TEMP.
HIKLJ
E
F
˚C
ON OFF
CLOCK
ERROR CODE
1Hr.
NOT AVAILABLE
˚C
FILTER
CHECK MODE
TEST RUN FUNCTION
ON/OFF
R P
O N M
3
SPECIFICATION
3-1. Specification
Power source
Model
kWCooling capacity ❇1 kW
kWCooling Heating Cooling Heating
kW
A A
mm mm mm
kg
m
3
/min
Pa Pa
50/100/200
100/150/200
220V
230, 240V
kW
mm
mm
dB(A) dB(A)
27-34 31-37
32-38 36-41
32-39 35-41
Heating capacity ❇1 Power consumption
(50/60Hz)
Current
External finish
Dimension
Height
Width
Depth Net weight Heat exchanger
Fan
Type Airflow rate
(Lo-Hi)
External static
pressure ❇2
Motor
Output ❇3
Type
Air filter (option)
Refrigerant pipe dimension
Gas
(Flare)
Liquid
(Flare) Drain pipe dimension Noise level (Lo-Hi)
220V
230, 240V
~
750 1000
44
Cross fin (Aluminum plate fin and copper tube)
Sirocco fan
Single phase induction motor
Synthethic fiber unwoven cloth filter(long life)
10.0-14.0
220-240V 50Hz /60Hz
PEFY-P40VMH-E PEFY-P50VMH-E
5.64.5
6.35.0
Galvanizing
380
900
1
12.7
6.35
32 (1-1/4 inch)
0.08
0.19/0.23
0.19/0.23
0.88/1.06
0.88/1.06
0.24/0.30
0.24/0.30
1.12/1.38
1.12/1.38
0.26/0.33
0.26/0.33
1.20/1.51
1.20/1.51
45 50
ø
ø
9.52
ø
PEFY-P63VMH-E
7.1
8.0
ø
15.88
ø
12.7(R410A)
ø
15.88
(R22,R407C)
ø
6.35(R410A)
ø
9.52
(R22,R407C)
13.5-19.0
0.12 0.14
PEFY-P71VMH-E
8.0
9.0
15.5-22.0
Note: ❇1 Cooling/Heating capacity indicates the maximum value at operation under the following condition.
Cooling : Indoor 27˚CDB/19˚CWB,Outdoor 35˚CDB (WR2: water 30˚C) Heating : Indoor 20˚CDB,Outdoor 7˚CDB/6˚CWB (WR2: water 20˚C)
2 The external static pressure is set to 100Pa (at 220V) /150Pa (at 230, 240V) at factory shipment.
3 The value are that at 240V.
LEV
C1
MF1,2
P
EFY-
P40VMH-E
3-2. Electrical parts specifications
Model
Parts
name
Tranrsformer T (Primary) 50/60Hz 220-240V (Secondry) (23.5V 0.9A)
TH21 Resistance 0˚C/15kΩ,10˚C/9.6kΩ,20˚C/6.3kΩ,25˚C/5.4kΩ,30˚C/4.3kΩ,40˚C/3.0kΩ
TH22 Resistance 0˚C/15kΩ,10˚C/9.6kΩ,20˚C/6.3kΩ,25˚C/5.4kΩ,30˚C/4.3kΩ,40˚C/3.0kΩ
Gas pipe thermistor
FUSE 250V 6.3A
TB2 (L,N, ) 330V 30A
TB5 TB15
(1,2),(M1,M2,S) 300V 10A
Fuse
(Indoor con-
troller board)
Power supply terminal bed
Transmission terminal bed
P
EFY-
P50VMH-E
P
EFY-
P63VMH-E
P
EFY-
P71VMH-E
P
EFY-
P80VMH-E
P
EFY-
P100VMH-E
P
EFY-
P125VMH-E
P
EFY-
P140VMH-E
P
EFY-
P200VMH-E
P
EFY-
P250VMH-E
OFF 135˚C±5˚C
ON 95˚C±20˚C
Room temperature thermistor
Fan motor
(with Inner-
thermostat)
4-pole OUTPUT
130W
NC-45VMH
4-pole
Output
180W
NC-71VMH
Symbol
(L1,L2,L3,N, )
660V 40A
TH23 Resistance 0˚C/15kΩ,10˚C/9.6kΩ,20˚C/6.3kΩ,25˚C/5.4kΩ,30˚C/4.3kΩ,40˚C/3.0kΩ
Inner­thermostat
(F
an motor)
Liquid pipe thermistor
Fan motor capacitor
Linear expansion valve
4-pole
Output
220W
NC-80VMH
4-pole
Output
230W
NC-90VMH
4-pole
Output
550W
NS-200VMH
4-pole
Output
800W
NS-250VMH
4-pole OUTPUT 400W
NS-112VMH
3.0µF440V
4.0µF
440V
5.0µF440V
-
7.0µF440V
DC12V Stepping motor drive
port dimension ø 3.2
0~1800pulse <at R410A outdoor unit> 0~2000pulse <at the other outdoor unit>
0~1800pulse <at R410A outdoor unit> 0~2000pulse <at the other outdoor unit>
0~1800pulse <at R410A outdoor unit> 0~2000pulse <at the other outdoor unit>
0~1800pulse <at R410A outdoor unit> 0~2000pulse <at the other outdoor unit>
DC12V Stepping motor drive
port dimension ø 5.2
DC12V Stepping motor drive
port dimension ø 5.2
DC12V Stepping
motor drive port dimension ø 6.4
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