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Mitsubishi
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PEAD-A42AA4
Service Manual
40 pgs5.1 Mb0

Mitsubishi PEAD-A24AA4, PEAD-A30AA4, PEAD-A36AA4, PEAD-A42AA4 Service Manual

SERVICE MANUAL
<indoor unit> Service ref.
Models
PEAD-A24AA4 PEAD-A30AA4 PEAD-A36AA4 PEAD-A42AA4
TM
1. SAFETY PRECAUTION ····························· 2
2. PART NAMES AND FUNCTIONS ·············· 3
4. FAN PERFORMANCE AND CORRECTED AIR FLOW ·························· 6
5. SOUND PRESSURE LEVELS ···················1 1
6. OUTLINES & DIMENSIONS ······················15
7. WIRING DIAGRAM ····································16
8. REFRIGERANT SYSTEM DIAGRAM ········17
9. HEATER CONTROL ··································17
10
. TROUBLESHOOTING ·······························20
11
. DISASSEMBLY PROCEDURE ··················33
CONTENTS
INDOOR UNIT
Series PEAD
R410A
2010
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
NOTE:
• This manual describes only service data of the indoor units.
1
SAFETY PRECAUTION
1-1. ALWAYS OBSERVE FOR SAFETY
Before obtaining access to terminal, all supply circuits must be disconnected.
1-2. CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilising refrigerant R410A
Use new refrigerant pipes.
In case of using the existing pipes for R22, be careful with the followings.
· For A36 and A42, be sure to perform replacement oper-
ation before test run.
· Change flare nut to the one provided with this product.
Use a newly flared pipe.
· Avoid using thin pipes.
Make sure that the inside and outside of refrige­rant piping is clean and it has no contamination such as sulfur hazardous for use, oxides, dirt, shaving particles, etc. In addition, use pipes with specified thickness.
Contamination inside refrigerant piping can cause deterio­ration of refrigerant oil etc.
Store the piping to be used indoors during installation and both ends of the piping sealed until just before brazing. (Leave elbow joints, etc. in their packaging.)
If dirt, dust or moisture enters into refrigerant cycle, that can cause deterioration of refrigerant oil or malfunction of com­pressor.
Do not use refrigerant other than R410A.
If other refrigerant (R22 etc.) is used, chlorine in refrige­rant can cause deterioration of refrigerant oil etc.
Use a vacuum pump with a reverse flow check valve.
Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of refrigerant oil etc.
Use the following tools specifically designed for use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
Tools for R410A Gauge manifold Charge hose Gas leak detector
Torque wrench
Flare tool Size adjustment gauge Vacuum pump adaptor
Electronic refrigerant charging scale
Handle tools with care.
If dirt, dust or moisture enters into refrigerant cycle, that can cause deterioration of refrigerant oil or malfunction of com­pressor.
Use ester oil, ether oil or alkylbenzene oil (small amount) as the refrigerant oil applied to flares and flange connections.
If large amount of mineral oil enters, that can cause deterio­ration of refrigerant oil etc.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigera­nt will change and the efficiency will be lowered.
Ventilate the room if refrigerant leaks during
Charge refrigerant from liquid phase of gas cylinder.
If the refrigerant is charged from gas phase, composition change may occur in refrigerant and the efficiency will be lowered.
operation. If refrigerant comes into contact with a flame, poisonous gases will be released.
[1] Cautions for service
(1) Perform service after recovering the refrigerant left in unit completely. (2) Do not release refrigerant in the air. (3) After completing service, charge the cycle with specified amount of refrigerant. (4) When performing service, install a filter drier simultaneously. Be sure to use a filter drier for new refrigerant.
[2] Additional refrigerant charge
When charging directly from cylinder
· Check that cylinder for R410A on the market is syphon type.
· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
2
Unit
Gravimeter
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No. Tool name Specifications
1 Gauge manifold · Only for R410A
· Use the existing fitting specifications. (UNF1/2)
· Use high-tension side pressure of 5.3MPa·G or over.
2 Charge hose · Only for R410A
· Use pressure performance of 5.09MPa·G or over.
3 Electronic
4 Gas leak detector · Use the detector for R134a, R407C or R410A.
5 Adaptor for reverse flow check · Attach on vacuum pump.
6 Refrigerant charge base
7 Refrigerant cylinder · Only for R410A · Top of cylinder (Pink)
· Cylinder with syphon
8 Refrigerant recovery equipment
scale
2
Indoor Unit
•
Air intake (sucks the air inside the room into the unit)
PART NAMES AND FUNCTIONS
In case of rear inlet
Air outlet
In case of bottom inlet
3
Service Ref. Power supply (phase, cycle, voltage)
Max. Fuse Size Min. Circuit Ampacity A
A
External finish Heat exchanger
Fan
Fan (drive) × No. F
Fan motor
an motor output kW
F.L.A
Airflow (Low-Mid-High)
m
3
/min (CFM)
External static pressure Pa (in.WG) Operation control & Thermostat Sound pressure level (Low-Mid-High)
dB (A)
Field drain pipe O.D mm (in.) Dimensions W mm (in.)
D mm (in.) H mm (in.)
kg (lbs)
INDOOR UNIT
Weight
35Pa (0.14 in.WG) 50Pa (0.20 in.WG) 70Pa (0.28 in.WG)
100Pa (0.40 in.WG)
150Pa (0.60in.WG)
Service Ref. Power supply (phase, cycle, voltage)
Max. Fuse Size
Min. Circuit Ampacity A
A
External finish Heat exchanger
Fan
Fan (drive) × No.
F
Fan motor
an motor output kW
F.L.A
Airflow (Low-Mid-High)
m
3
/min (CFM)
External static pressure Pa (in.WG) Operation control & Thermostat Sound pressure level (Low-Mid-High)
dB (A)
Field drain pipe O.D mm (in.) Dimensions W mm (in.)
D mm (in.) H mm (in.)
kg (lbs)
INDOOR UNIT
Weight
35Pa (0.14 in.WG) 50Pa (0.20 in.WG) 70Pa (0.28 in.WG)
100Pa (0.40 in.WG)
150Pa (0.60in.WG)
Service Ref. Power supply (phase, cycle, voltage)
Max. Fuse Size
Min. Circuit Ampacity A
A
External finish Heat exchanger
Fan
Fan (drive) × No.
F
Fan motor
an motor output kW
F.L.A
Airflow (Low-Mid-High)
m
3
/min (CFM)
External static pressure Pa (in.WG) Operation control & Thermostat Sound pressure level (Low-Mid-High)
dB (A)
Field drain pipe O.D mm (in.) Dimensions W mm (in.)
D mm (in.) H mm (in.)
kg (lbs)
INDOOR UNIT
Weight
35Pa (0.14 in.WG) 50Pa (0.20 in.WG) 70Pa (0.28 in.WG)
100Pa (0.40 in.WG)
150Pa (0.60in.WG)
PEAD-A24AA4
1 phase, 60Hz, 208/230V
15
2.63
1 phase, 60Hz, 208/230V
15
2.73
1 phase, 60Hz, 208/230V
15
3.30
Galvanized sheets
Plate fin coil
Sirocco fan
× 2
0.121
2.10
14.5-18.0-21.0 (512-636-742)
35-50-70-100-150 (0.14-0.20-0.28-0.40-0.60)
Remote controller & built-in
30-32-36 30-33-37 30-34-38 31-36-39 33-38-42
32 (1-1/4)
1100 (43-5/16)
732 (28-7/8)
250 (9-7/8)
33 (73)
PEAD-A30AA4
PEAD-A36AA4
Galvanized sheets
Plate fin coil
Sirocco fan
× 2
0.121
2.18
17.5-21.0-25.0 (618-742-883)
35-50-70-100-150 (0.14-0.20-0.28-0.40-0.60)
Remote controller & built-in
30-33-38 30-34-39 31-35-39 32-37-40 34-39-43
32 (1-1/4)
1100 (43-5/16)
732 (28-7/8)
250 (9-7/8)
33 (73)
Galvanized sheets
Plate fin coil
Sirocco fan
× 2
0.244
2.64
24.0-29.0-34.0 (847-1024-1201)
35-50-70-100-150 (0.14-0.20-0.28-0.40-0.60)
Remote controller & built-in
32-38-42 33-38-42 34-39-43 36-40-44 38-42-45
32 (1-1/4)
1400 (55-1/8)
732 (28-7/8)
250 (9-7/8)
41 (91)
3
SPECIFICATION
4
Service Ref. Power supply (phase, cycle, voltage)
External finish Heat exchanger
Fan
Operation control & Thermostat Sound pressure level (Low-Mid-High)
INDOOR UNIT
Field drain pipe O.D mm (in.) Dimensions W mm (in.)
Weight
Max. Fuse Size Min. Circuit Ampacity A
Fan (drive) × No. F
an motor output kW
Fan motor Airflow (Low-Mid-High) External static pressure Pa (in.WG)
35Pa (0.14 in.WG) 50Pa (0.20 in.WG) 70Pa (0.28 in.WG)
100Pa (0.40 in.WG)
150Pa (0.60in.WG)
D mm (in.) H mm (in.)
F.L.A
3
m
/min (CFM)
dB (A)
kg (lbs)
PEAD-A42AA4
A
1 phase, 60Hz, 208/230V
29.5-35.5-42.0 (1042-4254-1483)
35-50-70-100-150 (0.14-0.20-0.28-0.40-0.60)
Remote controller & built-in
15
3.50
Galvanized sheets
Plate fin coil
Sirocco fan
1400 (55-1/8)
732 (28-7/8)
× 2
0.244
2.80
36-40-44 36-40-44 36-41-45 37-43-46 39-44-47 32 (1-1/4)
250 (9-7/8)
43 (95)
5
4
FAN PERFORMANCE AND CORRECTED AIR FLOW
PEAD-A24AA4
(External static pressure 35Pa) 208-230V 60Hz
60
[0.241]
50
[0.201]
Limit
40
[0.161]
Rated point
30
[0.120]
20
[0.080]
External static pressure (Pa)[in.WG]
10
[0.040]
0
[0]
10
[353]
PEAD-A24AA4
(External static pressure 50Pa) 208-230V 60Hz
70
[0.281]
60
[0.241]
50
[0.201]
Limit
[530]
15
Airflow rate (m
Low
[706]
20
Middle
3
/min)[cfm]
Rated point
High
[883]
PEAD-A24AA4
(External static pressure 100Pa) 208-230V 60Hz
150
[0.602]
100
[0.401]
Limit
Rated point
High
Middle
50
[0.201]
External static pressure (Pa)[in.WG]
Low
0
25
30
[1059]
[0]
10
[353]
PEAD-A24AA4
(External static pressure 150Pa) 208-230V 60Hz
200
[0.803]
150
[0.602]
[530]
Limit
15
[706]
Airflow rate (m
20
3
/min)[cfm]
Rated point
[883]
25
30
[1059]
High
40
[0.161]
30
[0.120]
External static pressure (Pa)[in.WG]
20
[0.080]
10
[0.040]
0
[0]
10
[353]
PEAD-A24AA4
(External static pressure 70Pa) 208-230V 60Hz
90
[0.361]
80
[0.321]
70
[0.281]
[0.241]
[0.201]
[0.161]
[0.120]
External static pressure (Pa)[in.WG]
[0.080]
[0.040]
60
50
40
30
20
10
[0]
0
[353]
Limit
10
[530]
[530]
Low
15
Airflow rate (m
15
Airflow rate (m
[706]
Low
[706]
20
20
Middle
3
/min)[cfm]
Rated point
3
/min)[cfm]
Middle
High
[883]
[883]
25
High
25
30
[1059]
30
[1059]
[0.401]
External static pressure (Pa)[in.WG]
[0.201]
100
Middle
50
Low
0
[0]
[353]
10
[530]
15
[706]
Airflow rate (m
20
3
/min)[cfm]
[883]
25
30
[1059]
6
PEAD-A30AA4
(External static pressure 35Pa) 208-230V 60Hz
70
[0.281]
60
[0.241]
[0.201]
[0.161]
[0.120]
External static pressure (Pa)[in.WG]
[0.080]
[0.040]
50
40
30
20
10
0
[0]
10
[353]
Limit
[530]
Middle
Low
15
[706]
Airflow rate (m
20
3
/min)[cfm]
High
[883]
25
Rated point
PEAD-A30AA4
(External static pressure 100Pa) 208-230V 60Hz
150
[0.602]
Limit
100
[0.401]
50
[0.201]
External static pressure (Pa)[in.WG]
0
[0]
30
[1059]
[353]
10
[530]
15
Low
[706]
Airflow rate (m
20
Middle
3
/min)[cfm]
High
Rated point
25
[883]
30
[1059]
PEAD-A30AA4
(External static pressure 50Pa) 208-230V 60Hz
90
[0.361]
80
[0.321]
70
[0.281]
60
[0.241]
50
[0.201]
40
[0.161]
30
[0.120]
External static pressure (Pa)[in.WG]
20
[0.080]
10
[0.040]
0
[0]
10
[353]
PEAD-A30AA4
(External static pressure 70Pa) 208-230V 60Hz
100
[0.401]
90
[0.361]
80
[0.321]
70
[0.281]
60
[0.241]
50
[0.201]
40
[0.161]
30
External static pressure (Pa)[in.WG]
[0.120]
20
[0.080]
10
[0.040]
0
[0]
10
[353]
Limit
Limit
15
[530]
15
[530]
Middle
Low
[706]
Airflow rate (m
Middle
Low
[706]
Airflow rate (m
20
20
3
/min)[cfm]
3
/min)[cfm]
High
High
Rated point
25
[883]
25
[883]
Rated point
PEAD-A30AA4
(External static pressure 150Pa) 208-230V 60Hz
200
[0.803]
150
30
[1059]
30
[1059]
[0.602]
[0.401]
External static pressure (Pa)[in.WG]
[0.201]
100
50
0
[0]
10
[353]
Limit
[530]
15
[706]
Airflow rate (m
20
Middle
Low
3
/min)[cfm]
High
Rated point
25
[883]
30
[1059]
7
PEAD-A36AA4
(External static pressure 35Pa) 208-230V 60Hz
70
[0.281]
Limit
60
[0.241]
50
[0.201]
40
[0.161]
30
[0.120]
3
/min)[cfm]
Middle
External static pressure (Pa)[in.WG]
20
[0.080]
10
[0.040]
0
[0]
10
[353]15[530]20[706]25[883]30[1059]35[1236]40[1412]45[1589]
Low
Airflow rate (m
Rated point
High
PEAD-A36AA4
(External static pressure 100Pa) 208-230V 60Hz
150
[0.602]
Limit
High
100
[0.401]
Middle
50
[0.201]
External static pressure (Pa)[in.WG]
0
[0]
10
[353]15[530]20[706]25[883]30[1059]35[1236]40[1412]45[1589]
Low
Airflow rate (m
3
/min)[cfm]
Rated point
PEAD-A36AA4
(External static pressure 50Pa) 208-230V 60Hz
100
[0.401]
90
[0.361]
80
[0.321]
70
[0.281]
60
[0.241]
50
[0.201]
40
[0.161]
30
External static pressure (Pa)[in.WG]
[0.120]
20
[0.080]
10
[0.040]
[0]
PEAD-A36AA4
(External static pressure 70Pa) 208-230V 60Hz
150
[0.602]
Limit
High
Middle
Low
0
10
[353]15[530]20[706]25[883]30[1059]35[1236]40[1412]45[1589]
Airflow rate (m
3
/min)[cfm]
Limit
Rated point
PEAD-A36AA4
(External static pressure 150Pa) 208-230V 60Hz
200
[0.803]
High
150
[0.602]
Limit
Middle
100
[0.401]
Low
External static pressure (Pa)[in.WG]
50
[0.201]
0
[0]
10
[353]15[530]20[706]25[883]30[1059]35[1236]40[1412]45[1589]
Airflow rate (m
3
/min)[cfm]
Rated point
100
[0.401]
Middle
50
[0.201]
External static pressure (Pa)[in.WG]
0
[0]
10
[353]15[530]20[706]25[883]30[1059]35[1236]40[1412]45[1589]
Low
Airflow rate (m
3
/min)[cfm]
High
Rated point
8
PEAD-A42AA4
(External static pressure 35Pa) 208-230V 60Hz
70
[0.281]
Limit
60
[0.241]
50
[0.201]
40
[0.161]
30
[0.120]
External static pressure (Pa)[in.WG]
20
[0.080]
10
[0.040]
0
[0]
15
[530]20[706]25[883]30[1059]35[1236]40[1412]45[1589]
Low
Airflow rate (m
Middle
3
/min)[cfm]
High
Rated point
PEAD-A42AA4
(External static pressure 100Pa) 208-230V 60Hz
200
[0.803]
Limit
150
[0.602]
[0.401]
External static pressure (Pa)[in.WG]
[0.201]
100
50
0
[0]
[530]
15
20
[706]25[883]30[1059]35[1236]40[1412]45[1589]
Middle
Low
3
Airflow rate (m
Airflow rate (m3/min)[cfm]
/min)[cfm]
High
Rated point
PEAD-A42AA4
(External static pressure 50Pa) 208-230V 60Hz
100
[0.401]
90
[0.361]
80
[0.321]
70
[0.281]
60
[0.241]
50
[0.201]
40
[0.161]
30
External static pressure (Pa)[in.WG]
[0.120]
20
[0.080]
10
[0.040]
0
[0]
[530]20[706]25[883]30[1059]35[1236]40[1412]45[1589]
PEAD-A42AA4
(External static pressure 70Pa) 208-230V 60Hz
150
[0.602]
Limit
Middle
Low
15
Airflow rate (m
Airflow rate (m3/min)[cfm]
3
/min)[cfm]
Limit
High
100
[0.401]
Middle
High
Rated point
Rated point
PEAD-A42AA4
(External static pressure 150Pa) 208-230V 60Hz
250
[1.004]
[0.803]
[0.602]
[0.401]
External static pressure (Pa)[in.WG]
[0.201]
200
150
100
Limit
Low
50
0
[0]
[530]
15
20
[706]25[883]30[1059]35[1236]40[1412]45[1589]
Airflow rate (m
Airflow rate (m
Middle
3
3/min)[cfm]
/min)[cfm]
High
Rated point
50
[0.201]
External static pressure (Pa)[in.WG]
0
[0]
15
[530]20[706]25[883]30[1059]35[1236]40[1412]45[1589]
Low
Airflow rate (m
Airflow rate (m3/min)[cfm]
3/min)[cfm]
9
PEAD-A24, 30, 36,42AA4
Air filter 208-230V 60Hz
15
[0.060]
10
[0.040]
5
[0.020]
External static pressure (Pa)[in.WG]
0
[0]
0
[0]
[353]
10
20
[706]
Airflow rate (m
A24,30
3
/min)[cfm]
30
[1059]
A36,42
40
[1412]
10
5
SOUND PRESSURE LEVELS
5-1. Sound pressure level
Ceiling concealed
5-2. NC curves
PEAD-A24AA4
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0 audible limit on
continuous noise
5.0
0.0 63 125 250 500 1k 2k 4k 8k
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0 audible limit on
continuous noise
5.0
0.0 63 125 250 500 1k 2k 4k 8k
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0 audible limit on
continuous noise
5.0
0.0 63 125 250 500 1k 2k 4k 8k
External static pressure 0.14 [in.WG] (35Pa) External static pressure 0.40 [in.WG] (100Pa)
Octave band center frequencies (Hz)
External static pressure 0.20 [in.WG] (50Pa)
Octave band center frequencies (Hz)
External static pressure 0.28 [in.WG] (70Pa)
Octave band center frequencies (Hz)
2m
Aux. duct
test unit
1.5m
Measurement location
High
Low
Middle
High
Low
Middle
High
Low
Middle
NC-60
NC-50
NC-40
NC-30
NC-20
NC-60
NC-50
NC-40
NC-30
NC-20
NC-60
NC-50
NC-40
NC-30
NC-20
1m
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0 audible limit on
continuous noise
5.0
0.0 63 125 250 500 1k 2k 4k 8k
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0 audible limit on
continuous noise
5.0
0.0 63 125 250 500 1k 2k 4k 8k
Octave band center frequencies (Hz)
External static pressure 0.60 [in.WG] (150Pa)
Octave band center frequencies (Hz)
High Middle
High Middle
Low
NC-60
NC-50
NC-40
NC-30
NC-20
Low
NC-60
NC-50
NC-40
NC-30
NC-20
11
PEAD-A30AA4
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0 audible limit on
continuous noise
5.0
0.0 63 125 250 500 1k 2k 4k 8k
External static pressure 0.14 [in.WG] (35Pa) External static pressure 0.40 [in.WG] (100Pa)
High Middle
Octave band center frequencies (Hz)
Low
NC-60
NC-50
NC-40
NC-30
NC-20
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0 audible limit on
continuous noise
5.0
0.0 63 125 250 500 1k 2k 4k 8k
Octave band center frequencies (Hz)
High Middle
Low
NC-60
NC-50
NC-40
NC-30
NC-20
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0 audible limit on
continuous noise
5.0
0.0 63 125 250 500 1k 2k 4k 8k
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0 audible limit on
continuous noise
5.0
0.0 63 125 250 500 1k 2k 4k 8k
External static pressure 0.20 [in.WG] (50Pa)
High Middle
Octave band center frequencies (Hz)
Low
External static pressure 0.28 [in.WG] (70Pa)
High Middle
Octave band center frequencies (Hz)
Low
NC-60
NC-50
NC-40
NC-30
NC-20
NC-60
NC-50
NC-40
NC-30
NC-20
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0 audible limit on
continuous noise
5.0
0.0 63 125 250 500 1k 2k 4k 8k
External static pressure 0.60 [in.WG] (150Pa)
High Middle
Octave band center frequencies (Hz)
Low
NC-60
NC-50
NC-40
NC-30
NC-20
12
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