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PEFY-P12NMLU-E
Operation Manual
23 pgs3.12 Mb0

Mitsubishi PEFY, PEFY-P06NMLU-E, PEFY-P08NMLU-E, PEFY-P12NMLU-E Service Manual

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Page 1
TECHNICAL & SERVICE MANUAL
Air-Conditioners For Building Application
<Indoor unit>
2005
Models
Ceiling Concealed
Series PEFY
Page 2
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
Page 3
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 refrigerant
erant other than R410A.
R410A , the refrigerant may deteriorated.
- If deteriorate.water is mixed in the R410A , the refrigerator oil may
- Since R410A does not contain any chlorine, gas leak detectors for conventional refrigerants will not react to it.
Warning:
Note the following when building a heater in the air conditioning system.
- Leave enough space between units for proper ventilation so that the indoor unit temperature does not exceed 40˚C when windless.
- Keep the heater clean, and take appropriate measures so that the indoor unit does not suck in the dust particles that accumulate on the heater.
- Use the optional heater cable (PAC-YU24HT) to perform an interlocked operation with indoor units.
- Do not build a heater inside the indoor unit.
•
Recommended circuit
FS1
FS2 FS1
FS2
R
S
R
S
CN24
H2
88H
H1
88H
26H
88H
Wiring diagram
1-phase power supply
208V, 230V/60Hz
Control board
FS1, 2 ----- Thermal fuse
H1, H2 ----- Heater
26H --------- Overheat protection
thermostat
88H --------- Electromagnetic contactor
Page 4
Page 5
PART NAMES AND FUNCTIONS
2
● Indoor (Main) Unit
● Remote controller
[Operation buttons]
[PAR-21MAA]
● Once the controls are set, the same operation mode can
be repeated by simply pressing the ON/OFF button.
Air inlet
Air outlet
1 [Set Temperature] Button 2 [Timer Menu] Button
[Monitor/Set] Button
3 [Mode] Button
[Return] Button
4 [Timer On/Off] Button
[Set Day] Button
7 [Airflow Up/Down] Button
[Ventilation] Button [Operation] Button
5 [Louver] Button
[Operation] Button
6 [Fan Speed] Button
[Check/Clear] Button
0 [Test run] Button A
8
9
[Filter] Button [ ] Button
B C
D
[ON/OFF] Button Position of built-in room temperature
[Set Time] Button
Ne• ver 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.
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
1
2
3
4D 568 9
0
C
A
B 7
Page 6
Page 7
3
SPECIFICATION
3-1. Specification
Notes: *1 Cooling/Heating capacity indicates the maximum value at operation under the following condition.
Cooling: Indoor: 26.7 °C [80 °F] DB/19.4 °C [67 °F] WB Outdoor: 35 °C [95 °F] DB Heating: Indoor: 21.1 °C [70 °F] DB Outdoor: 8.3 °C [47 °F] DB/6.1 °C [43 °F] WB
*2 The operating noise is the data that was obtained in an anechoic room.
Item Model
PEFY
PEFY-P-NMLU-E
-P06NMLU-E PEFY-P08NMLU-E PEFY-P12NMLU-E
Power sourse 208/230V, 60Hz
Capacity *1
Cooling
kW 1.8 2.3 3.5
BTU/h 6000 8000 12000
Heating
kW 2.0 2.6 4.0
BTU/h 6700 9000 13500
Dimension
Height
mm 225
in 8-7/8
Width
mm 790
in 31-1/8
Depth
mm 550
in 21-21/32
Net weight
kg 18
lb 40
FAN
Airflow rate (Low-Middle-High)
m
3
/min 4.8-5.8-7.9 4.8-5.8-7.9 4.8-5.8-9.5
cfm 169-205-279 169-205-279 169-205-335 External static pressure
Pa
208V 5 5 5
230V 5 5 5 Noise level (Low-Middle-High) *2
dB(A)
208V 25-29-36 25-29-36 25-29-40
230V 25-29-36 25-29-36 25-29-40 Filter Standard filter
Page 8
Page 9
4
OUTLINES AND DIMENSIONS
PEFY-P06·08·12NMLU-E
Drain pipe
Gas pipe
Liquid pipe
Ceiling surface
Access door
Make the access door at the appointed position properly
for service maintenance.
Required space for service and maintenance.
Suspension bolt hole
4-14X30(9/16X1-3/16) Slot
Air filter
(Accessory)
Note1.Use M10 screw for the Suspension bolt (field supply).
2.Keep the service space for the maintenance from
the bottom when the heat exchanger is cleaned.
3.The direction of air intake can be changed from the
bottom to the rear by attaching the bottom plate
to the air intake side.
4.Drain Pan is changeable from right and left.
5.The dimension is changed, in case the optional
long-life filter is attached.
Rear Air-Intake spec.:Depth 571mm (22-1/2 in.)( 1)
Bottom Air-Intake spec.:Height 241mm (9-1/2 in.)( 2)
Control box
Terminal bed
(Transmission)
Terminal bed
(Power source)
Bottom plate
The part air intake duct is attached.( 3)
(When the air intake duct is used)
Detailed chart around the air intake duct frange.
(3)
(Duct and frange should be supplied in the field.)
mm(in.)
12-¿3(1/8)
Air outlet
Air inlet
23-
¿3(1/8)
450
(17-23/32)
50~150
(1-31/32~5-29/32)
300
(11-13/16)
(17-23/32)
450
25
(1)
500
(19-11/16)
50~150
110
(4-11/32)
)(
80
(3-5/32)
55
(2-3/16)
50X11=550(1-31/32X11=21-21/32)
16
(21/32)
582(22-15/16)
14
(9/16)
459(18-3/32)(Suspension bolt pitch)
15(19/32)
(113(4-15/32))
23
(29/32)
664(26-5/32)(Suspension bolt pitch)
720(28-3/8)
710(27-31/32)
225(8-7/8)( 2)
610(24-1/32)
50
(1-31/32)
80
(3-5/32)
30(1-3/16)
15(19/32)
148
(5-27/32)
13.5
204.5(8-1/16)
50
50
(9/16)
(1-
31/32)
(1-
31/32)
510(20-3/32)
14
(9/16)
127(5)
65.5
(2-19/32)
42.5 (1-11/16)
129
55
(7/32)(7/32)
301(11-7/8) 301(11-7/8)
189
(1/2)(3/8) (7-15/32)
550(21-21/32)( 1)
20(13/16) or more
20(13/16) or more
70
(2-3/4)
2
1
3
(1-31/32
~5-29/32)
Unit :mm(in.)
Page 10
Page 11
REFRIGERANT SYSTEM DIAGRAM
6
Gas pipe
PEFY-P06·08·12NMLU-E
mm <in.>
ø
12.7<1/2>
Liquid pipe
ø
6.35<1/4>
Capacity
Item
Gas pipe thermistor TH23
Liquid pipe thermistor TH22
Heat exchanger
Linear expansion valve
Strainer (#100mesh)
Room temperature thermistor TH21
Gas pipe
Brazed joints
Strainer (#100mesh)
Page 12
CN3T
3
CNT
1
3T
Protector
LEV
CN60
White
Yellow
Orange
Blue
Red
Brown
Relay connector
White
1
Orange
2
Red
3
Black
4
Brown
7
Yellow
5
Blue
6
1 2 3 4 5 6
Page 13
CN62
SW1
SW7
ON
ON
ON
W254665G06
JP2
SW14
FP-AD-R
CN82
681 1
240V 220V
1
1
01
12
ASSY
2
34567891021
345678 9
G23
1
1
O
F
F
2
3
3
ABCDE F
10
JP1
SW5SWCSWA
1
3
2
SW12 SW11
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
7-2. Setting of address switch
Make sure that power source is turning off.
ON
OFF
123456789
10
SW1
Indoor unit control board
< At delivery (All models)>
< At delivery (All models)>
Refer to the next page for SW2,SW3 setting.
SW2 SW3
1)In case using M-NET remote controller, address is set by rotary switches.(SW11,SW12)
* It is not necessary setting address in case of using unit remote controller.
2) Indoor unit address setting rule is different by each field work. Refer to install manual of outdoor unit , operate the address setting.
3)Setting the address is combination of SW11(1st digit address setting) and SW12(2nd digit address setting).
Address " 3 " setting is composed SW11 " 3 " and SW12 " 0 " . Address " 25 " setting is composed SW11 " 5 " and SW12 " 2 " .
Indoor unit do not run without address setting in field.
ON
OFF
12 543
SW4
SW4
Page 14
Models Dip-SW
PEFY­P06NMLU-E
PEFY­P08NMLU-E
PEFY­P12NMLU-E
Symbol LED operation under normal state
LED1 At applying main power source
LED2
At receiving MA transmission power source
Lighting
Lighting
Page 15
8
DISASSEMBLY PROCEDURE
OPERATING PROCEDURE PHOTOS
1.Removing the control box cover
(1) Remove the fixing screws (two) of the control box (A), and
remove the cover. (Fig. 1)
*At this stage, the following servicing is possible.
1 Operation and check of the switches (listed below) which
are on the control board.
• Dip switch SW2 Capacity code setting
• Dip switch SW3 Function change
• Dip switch SW4 Model code setting
2 Operation and check of the switches (listed below) which
are on the adress board.
• Rotary switches SW11, 12 Address setting
• Rotary switch SW14 Branch port setting
• Dip switch SW1 Function change (main)
3 Connection check of the lead wires (listed below) which
are connected to the controller board.
• Power supply lead wire.
• Network remote contoller transmission lead wire.
• Fan motor lead wire.
• LEV lead wire
• Intake air sensor lead wire
• Liquid piping sensor lead wire
• Gas piping sensor lead wire
• Power supply transformer lead wire
• Address board lead wire
4 Control board exchange
5 Address board exchange
6 Condenser exchange
7 Power supply transformer exchange
8 Arrest exchange
9 Intake air sensor exchange
10 Power supply terminal bed exchange
11 Transmission terminal bed exchange
8-1. CONTROL BOX
Be careful on removing heavy parts.
fig.1
fig.2
·················
·················
·················
······
···············
·······················
(A)
Page 16
Fan casing
Bottom plate1
Set screw
Fan motor
cable connector
Page 17
fig.10
fig.11
8-3. DRAINPAN
OPERATING PROCEDURE PHOTOS
1.Removing the drainpan.
(1) Remove the fixing screw (one) of the drainpan.(Fig. 10). (2) Slide the drainpan in the order of arrow 1,2,3, and remove
the drainpan. (Fig. 11)
Be careful on removing heavy parts.
1
2
3
Page 18
LEV
Thermistor
Page 19
8-5. HEAT EXCHANGER
OPERATING PROCEDURE PHOTOS
1.Removing the heat exchanger.
(1) Remove the drainpan with procedure 8-3. (2) Remove the bottom plate2 with procedure 8-4. (3) Remove the heat exchanger cover.(fixing screws : four)
(Fig. 15)
(4) Remove the heat exchanger.(fixing screws : three)
(Fig. 16),(Fig. 17)
fig.15
fig16
fig.17
Be careful on removing heavy parts.
Heat exchanger cover
Page 20
Address board
SWA SWC SW5
SW14 SW12 SW1
SW1
CN82 CN62
Trans
FAN3
X06 X05
X04
L1 L2 G
DSA board
CNDCNTCNP
Indoor unit contoller board
12
Condenser
(for motor)
Transmission terminal bed
Power sourse terminal bed
Gas sensor
Liquid sensor
Page 21
Page 22
Page 23
SERVICE PARTS LIST FOR MITSUBISHI ELECTRIC PACKAGED AIR-CONDITIONERS
Series PEFY-P•NMLU-E
For use with the R410A
INDEX
P E F Y - P 0 6 N M L U - E P E F Y - P 0 8 N M L U - E P E F Y - P 1 2 N M L U - E
REVISED
June 2009
BWE0511A
Please change the old catalog (issued July 2005, BWE05110) to this new catalog. Content of revision : Some of parts are changed.
Page 24
PEFY-P06,P08,P12NMLU-E

　　 EXTERNAL PARTS

109
104
101.102.103
105
110
111
108
107
106
G : RoHS Apply Only
No. Part No.
101 R61 Y26 483 W Heat exchanger assy 1 1 1 W265695G25 A
102 R63 902 936 G Thermistor(gas) NTH3A23-4<TH23> 1 1 1 P425491X01 A
103 R63 901 936 G Thermistor(liquid) NTH3A08-5<TH22> 1 1 1 P425484X01 A
104 R63 S38 401 G Linear expansion valve EDM4 XH<LEV> 1 1 1 P632407X02 A
105 R63 Y13 661 G Bottom plate A 1 1 1 W635907G02 A
106 R63 Y14 661 G Bottom plate B 1 1 1 W877415G02 A
107 R61 Y30 529 W Drain pan 1 1 1 W877416G06 A
108 R63 Y06 501 G Filter 1 1 1 W634781H01 A
109 R63 151 326 G Hanging metal fittings L 4 4 4 W398770H02 A
110 R61 Y01 601 W Insulated pipe 1 1 1 W469349H04
111 R61 E96 558 G Rubber stopper 1 1 1 P312040X01
W : RoHS Apply by Running Change
Part Name
Spec.
Dwg. No. Price
PEFY-P06NMLU-E
PEFY-P08NMLU-E
PEFY-P12NMLU-E
Revision History
1
Page 25
PEFY-P06,P08,P12NMLU-E
207
208

　　 BLOWER PARTS

204203 205. 206
203
202
201
G : RoHS Apply Only
No. Part No.
201 R63 Y14 140 G Fan base 1 1 1 W267214G01 A
202 R63 370 130 G Motor suppprt 1 1 1 W234925H06 A
203 R61 220 044 G Rubber bush 2 2 2 W837244H01 A
204 R63 652 131 G Fixing plate 2 2 2 W353715H01 A
205 R61 004 221 G Motor 1 1 P780084X01 A
206 R63 005 221 G Motor 1 P780085X01 A
207 R63 839 675 G Fan cover 1 1 1 W234951G01 A
208 R63 045 103 G Sirocco fan assy 1 1 1 W234904G01 A
W : RoHS Apply by Running Change
Part Name
Spec.
Dwg. No. Price
PEFY-P06NMLU-E
PEFY-P08NMLU-E
PEFY-P12NMLU-E
Revision History
2
Page 26
PEFY-P06,P08,P12NMLU-E
306
309

　　 CONTROL BOX PARTS

307
L
N
21
M1 M2
303. 304
302
308
G : RoHS Apply Only
No. Part No.
301 R63 Y08 715 G Terminal bed <TB2> 1 1 1 P436239X01 A
302 R63 336 246 G Terminal bed <TB5>,<TB15> 1 1 1 P436114X03 A
303 R61 Y34 252 W Capacitor 1.7μF <C> 1 1 P412302X01
304 R61 Y27 252 W Capacitor 2.5μF <C> 1 P412298X01
305 R63 Y22 280 G Board assy FP-DSA 1 1 1 W849072G13 A
306 R63 Y37 281 G Board assy AD 1 1 1 W849036G09 A
307 R61 Y72 281 G Board assy RY <I,B>
308 R61 Y22 260 W Transformer 1 1 1 P715353X01
309 R63 373 202 G Thermistor(inlet) <TH21> 1 1 1 P418059X01 A
W : RoHS Apply by Running Change
305
Part Name
301
<A,B>
Spec.
Dwg. No. Price
PEFY-P06NMLU-E
PEFY-P08NMLU-E
PEFY-P12NMLU-E
1 1 1 W849072G12
Revision History
3
Page 27
HE AD OFFI CE: TO KYO BLD G., 2- 7-3 , M ARUN OUC HI, CH IYOD A-K U, TOK YO 1 00- 831 0, JAP AN
BWE0511A (20090630)
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