Mitsubishi Mr.SLIM PEAD Series User manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SERVICE MANUAL
Model name
<Indoor unit>
Model name
<Indoor unit>
Series PEAD
2014
PEAD-A24AA5
PEAD-A30AA5
PEAD-A36AA5
PEAD-A42AA5
INDOOR UNIT

CONTENTS
1. SAFETY PRECAUTION 2
2. PART NAMES AND FUNCTIONS 3
3. SPECIFICATION 4
4. FAN PERFORMANCE AND CORRECTED AIR FLOW 6
5. SOUND PRESSURE LEVELS 11
6. OUTLINES & DIMENSIONS 15
7. WIRING DIAGRAM 17
8. REFRIGERANT SYSTEM DIAGRAM 18
9. HEATER CONTROL 19
1 . TROUBLESHOOTING 22
11. DISASSEMBLY PROCEDURE 35

2
SAFETY PRECAUTION
1
1-1. ALWAYS OBSERVE FOR SAFETY
Cautions for units utilising refrigerant R410A
Use new refrigerant pipes.
Make sure that the inside and outside of refrige-
rant 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.
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.)
Use ester oil, ether oil or alkylbenzene oil (small
amount) as the refrigerant oil applied to flares
and flange connections.
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.
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.
Do not use refrigerant other than R410A.
If other refrigerant (R22 etc.) is used, chlorine in refrige-
rant 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.
Handle tools with care.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigera-
nt will change and the efficiency will be lowered.
Flare tool
Electronic refrigerant
charging scale
Vacuum pump adaptor
Size adjustment gauge
Gauge manifold
Torque wrench
Gas leak detector
Charge hose
Tools for R410A
Contamination inside refrigerant piping can cause deterio-
ration of refrigerant oil etc.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
If large amount of mineral oil enters, that can cause deterio-
ration of refrigerant oil etc.
Ventilate the room if refrigerant leaks during
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.)
Before obtaining access to terminal, all supply
circuits must be disconnected.
1-2. CAUTIONS RELATED TO NEW REFRIGERANT

3
Gravimeter
Unit
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No. Tool name Specifications
1Gauge manifold ·Only for R410A
·Use the existing fitting specifications. (UNF1/2)
·Use high-tension side pressure of 5.3MPa·G or over.
2Charge hose ·Only for R410A
·Use pressure performance of 5.09MPa·G or over.
3Electronic scale
4Gas leak detector ·Use the detector for R134a, R407C or R410A.
5Adaptor for reverse flow check ·Attach on vacuum pump.
6Refrigerant charge base
7Refrigerant cylinder ·Only for R410A ·Top of cylinder (Pink)
·Cylinder with syphon
8Refrigerant recovery equipment
PART NAMES AND FUNCTIONS
2
•Indoor Unit
Air intake (sucks the
air inside the room
into the unit)
In case of rear inlet
Air outlet
In case of bottom inlet

4
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) m3/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) m3/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) m3/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-A24AA5
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)
31 (69)
PEAD-A30AA5
PEAD-A36AA5
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)
31 (69)
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)
39 (86)
SPECIFICATION
3

5
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) m3/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-A42AA5
1 phase, 60Hz, 208/230V
15
3.50
Galvanized sheets
Plate fin coil
Sirocco fan ×2
0.244
2.80
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
36-40-44
36-40-44
36-41-45
37-43-46
39-44-47
32 (1-1/4)
1400 (55-1/8)
732 (28-7/8)
250 (9-7/8)
41 (91)

6
0
[0]
10
[0.040]
20
[0.080]
30
[0.120]
40
[0.161]
50
[0.201]
60
[0.241]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
0
[0]
50
[0.201]
100
[0.401]
150
[0.602]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
0
[0]
10
[0.040]
20
[0.080]
30
[0.120]
40
[0.161]
50
[0.201]
60
[0.241]
70
[0.281]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
0
[0]
10
[0.040]
20
[0.080]
30
[0.120]
40
[0.161]
50
[0.201]
60
[0.241]
70
[0.281]
80
[0.321]
90
[0.361]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
0
[0]
50
[0.201]
100
[0.401]
150
[0.602]
200
[0.803]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
PEAD-A24AA5
(External static pressure 35Pa) 208-230V 60Hz
PEAD-A24AA5
(External static pressure 50Pa) 208-230V 60Hz
PEAD-A24AA5
(External static pressure 70Pa) 208-230V 60Hz
PEAD-A24AA5
(External static pressure 100Pa) 208-230V 60Hz
PEAD-A24AA5
(External static pressure 150Pa) 208-230V 60Hz
FAN PERFORMANCE AND CORRECTED AIR FLOW
4

7
0
[0]
50
[0.201]
100
[0.401]
150
[0.602]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
0
[0]
10
[0.040]
20
[0.080]
30
[0.120]
40
[0.161]
50
[0.201]
60
[0.241]
70
[0.281]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
0
[0]
10
[0.040]
20
[0.080]
30
[0.120]
40
[0.161]
50
[0.201]
60
[0.241]
70
[0.281]
80
[0.321]
90
[0.361]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
0
[0]
50
[0.201]
100
[0.401]
150
[0.602]
200
[0.803]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
0
[0]
10
[0.040]
20
[0.080]
30
[0.120]
40
[0.161]
50
[0.201]
60
[0.241]
70
[0.281]
80
[0.321]
100
[0.401]
90
[0.361]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
PEAD-A30AA5
(External static pressure 35Pa) 208-230V 60Hz
PEAD-A30AA5
(External static pressure 50Pa) 208-230V 60Hz
PEAD-A30AA5
(External static pressure 70Pa) 208-230V 60Hz
PEAD-A30AA5
(External static pressure 100Pa) 208-230V 60Hz
PEAD-A30AA5
(External static pressure 150Pa) 208-230V 60Hz

8
0
[0]
50
[0.201]
100
[0.401]
150
[0.602]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
0
[0]
50
[0.201]
100
[0.401]
150
[0.602]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
0
[0]
10
[0.040]
20
[0.080]
30
[0.120]
40
[0.161]
50
[0.201]
60
[0.241]
70
[0.281]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
35
[1236]
40
[1412]
45
[1589]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
35
[1236]
40
[1412]
45
[1589]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
35
[1236]
40
[1412]
45
[1589]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
35
[1236]
40
[1412]
45
[1589]
10
[353]
15
[530]
20
[706]
25
[883]
30
[1059]
35
[1236]
40
[1412]
45
[1589]
0
[0]
50
[0.201]
100
[0.401]
150
[0.602]
200
[0.803]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
0
[0]
10
[0.040]
20
[0.080]
30
[0.120]
40
[0.161]
50
[0.201]
60
[0.241]
70
[0.281]
80
[0.321]
100
[0.401]
90
[0.361]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
PEAD-A36AA5
(External static pressure 35Pa) 208-230V 60Hz
PEAD-A36AA5
(External static pressure 50Pa) 208-230V 60Hz
PEAD-A36AA5
(External static pressure 70Pa) 208-230V 60Hz
PEAD-A36AA5
(External static pressure 100Pa) 208-230V 60Hz
PEAD-A36AA5
(External static pressure 150Pa) 208-230V 60Hz

9
0
[0]
50
[0.201]
100
[0.401]
150
[0.602]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
0
[0]
10
[0.040]
20
[0.080]
30
[0.120]
40
[0.161]
50
[0.201]
60
[0.241]
70
[0.281]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
15
[530]
20
[706]
25
[883]
30
[1059]
35
[1236]
40
[1412]
45
[1589]
Airflow rate (m3/min)[cfm]
15
[530]
20
[706]
25
[883]
30
[1059]
35
[1236]
40
[1412]
45
[1589]
Airflow rate (m3/min)[cfm]
15
[530]
20
[706]
25
[883]
30
[1059]
35
[1236]
40
[1412]
45
[1589]
Airflow rate (m3/min)[cfm]
15
[530]
20
[706]
25
[883]
30
[1059]
35
[1236]
40
[1412]
45
[1589]
0
[0]
50
[0.201]
100
[0.401]
150
[0.602]
200
[0.803]
250
[1.004]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
0
[0]
50
[0.201]
100
[0.401]
150
[0.602]
200
[0.803]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
0
[0]
10
[0.040]
20
[0.080]
30
[0.120]
40
[0.161]
50
[0.201]
60
[0.241]
70
[0.281]
80
[0.321]
100
[0.401]
90
[0.361]
Airflow rate (m3/min)[cfm] Airflow rate (m3/min)[cfm]
15
[530]
20
[706]
25
[883]
30
[1059]
35
[1236]
40
[1412]
45
[1589]
External static pressure (Pa)[in.WG]
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
Limit
Low
Middle
High
Rated point
PEAD-A42AA5
(External static pressure 35Pa) 208-230V 60Hz
PEAD-A42AA5
(External static pressure 50Pa) 208-230V 60Hz
PEAD-A42AA5
(External static pressure 70Pa) 208-230V 60Hz
PEAD-A42AA5
(External static pressure 100Pa) 208-230V 60Hz
PEAD-A42AA5
(External static pressure 150Pa) 208-230V 60Hz

10
0
[0]
5
[0.020]
10
[0.040]
15
[0.060]
Airflow rate (m3/min)[cfm]
External static pressure (Pa)[in.WG]
0
[0]
10
[353]
20
[706]
30
[1059]
40
[1412]
A24,30
A36,42
PEAD-A24, 30, 36,42AA5
Air filter 208-230V 60Hz

11
SOUND PRESSURE LEVELS
5
5-1. Sound pressure level
Measurement location
2m 1m
Aux. duct
1.5m
test unit
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
External static pressure 0.14 [in.WG] (35Pa) External static pressure 0.40 [in.WG] (100Pa)
External static pressure 0.20 [in.WG] (50Pa)
External static pressure 0.28 [in.WG] (70Pa)
External static pressure 0.60 [in.WG] (150Pa)
Ceiling concealed
5-2. NC curves
PEAD-A24AA5

12
PEAD-A30AA5
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
External static pressure 0.14 [in.WG] (35Pa) External static pressure 0.40 [in.WG] (100Pa)
External static pressure 0.20 [in.WG] (50Pa)
External static pressure 0.28 [in.WG] (70Pa)
External static pressure 0.60 [in.WG] (150Pa)

13
PEAD-A36AA5
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
External static pressure 0.14 [in.WG] (35Pa) External static pressure 0.40 [in.WG] (100Pa)
External static pressure 0.20 [in.WG] (50Pa)
External static pressure 0.28 [in.WG] (70Pa)
External static pressure 0.60 [in.WG] (150Pa)

14
PEAD-A42AA5
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
Approximate minimum
audible limit on
continuous noise
NC-40
Octave band center frequencies (Hz)
NC-20
NC-30
High
Middle
Low
External static pressure 0.14 [in.WG] (35Pa) External static pressure 0.40 [in.WG] (100Pa)
External static pressure 0.20 [in.WG] (50Pa)
External static pressure 0.28 [in.WG] (70Pa)
External static pressure 0.60 [in.WG] (150Pa)

15
6OUTLINES & DIMENSIONS
INDOOR UNIT
PEAD-A24, 30, 36, 42AA5
200(7-7/8)
120
120
ø125
135
378(14-15/16) 153(6-1/16)
B(Suspension bolt pitch)
3-ø2.9(1/8) mount hole
Drain pipe(O.D ø32(1-1/4) Fresh air intake ø100(3-15/16)
knock out hole
23(15/16)
C
A
40(1-5/8)
15(5/8)
40(1-5/8)
78±3(3-1/8±1/8)
66±3(2-5/8±1/8)
58(2-5/16)
20(13/16) D(Duct)
30(1-3/16) 100(3-15/16)X(E-1)=F
100(3-15/16)
10(7/16)
2XE-ø2.9(1/8)
57(2-1/4) 643(25-3/8)
18(3/4)
210(8-5/16)
21(7/8) G
Air filter
732(28-7/8)
32(1-5/16) 700(27-9/16)
238(9-3/8)
10(7/16)
Drain pipe Drain pump
33(1-5/16)
40(1-5/8)100(3-15/16)
122(4-13/16)
178(7-1/16) 23(15/16)
2X2-ø2.9(1/8)
1Refrigerant piping (gas)
136 67
356(14-1/16) Drain pipe(O.Dø32(1-1/4))(Gravity drain)
Te r minal block(Power source)
Te r minal block(Transmission)
217(8-9/16)
41(1-5/8)
250(9-7/8)
Control box
(4-15/16)
(5-3/8)
(Suspension bolt pitch)
(Integral lift pump outlet)
(DUCT)
(5-3/8)
(2-11/16)
(Emergency drain) Note 4
(O.Dø32(1-1/4))
(43-5/16)
(55-1/8)
(45-7/16)
(57-1/4) (59-1/16) (53-9/16)
(47-1/4) (41-3/4) (39-3/8)
(51-3/16)
(41-11/16)
(53-1/2)
2Liquid pipe
1
Gas pipe
1058 13581300
Model
Model
A
1200
E
11
D
1060
C
1100
B
1154
1400
ø
15.88
(5/8)
1454 1500
ø
9.52
(3/8)
1360 14
1000
FG
PEAD-A24,30AA5 PEAD-A36,42AA5
Unit:mm(in.)
Unit:mm(in.)
Air inlet
Air outlet
Note 1.Use an M10 screw for the suspension bolt (field supply).
2.Keep the service space for maintenance at the bottom. 3.If the inlet duct is used,remove the air filter
(supplied with the unit),then install the filter (field supply) at the suction side.
4.Heat air to 0°
C
(32°
F
) or higher when taking fresh air
with a fresh air intake.
PEAD-A24,30AA5 PEAD-A36,42AA5
Top
Top
Bottom
view
Top
Bottom
Inlet air
side view
Outlet air
side view
Opposite piping
side view
Piping
side view
2Refrigerant piping(liquid)

16
Min. 10mm
Min. 300mm
Electric box
Access door 2(450X450)
Ceiling
Ceiling beam
475
(18-3/4)
450
700(27-9/16)
Min. 300mm
450
100~200
P
Access door 2
(450
X
450)
450
Q
50~150 450 Maintenance
access space
Access door 1
(450
X
450)
Electric box
(7/16)
Intake air
Supply air
(11-13/16)
(17-3/4X17-3/4)
(11-13/16)
(17-3/4)
(17-3/4)
(17-3/4X17-3/4)
(17-3/4)
(17-3/4)
(2~5-15/16)
Bottom of indoor unit
(17-3/4X17-3/4)
(Viewed from the direction
of the arrow A)
(3-15/16~7-7/8)
Intake
air
Supply
air
Fig.2
Fig.1
A
N-ø2.9(1/8)
6(1/4) J
KKK
J
KX(L-1)=M
11(7/16)
112112 Less than 700(27-9/16)
Less than 300
Drain hose(I.D ø32(1-1/4))
Access door 3
Ceiling
Ceiling beam
Electric box
Min. 10mm
Min. 20mm
50
(2)
700
(27-9/16)
P
50 (2)
777
(30-5/8)
H
475
(18-3/4)
450
Min. 300mm
450
100~200
50(2)
700
(27-9/16)
Min. 300mm
R
777
(30-5/8)
50 (2) P
Access door 4
Maintenance access space Maintenance
access space
Electric box
Electric box
Access door 1
(450
X
450)
Access door 3
(4-7/16)(4-7/16)
(11-13/16)
(Actual length)
(Accessory)
65
0
-10
0
-7/16
(2-9/16 )
Intake air
(7/16)
(13/16)
(3-15/16~7-7/8)
(17-3/4)
(11-13/16)
(17-3/4)
(11-13/16)
(Viewed from the direction of the arrow B)
Bottom of
indoor unit
(Viewed from the direction
of the arrow B)
(17-3/4
X
17-3/4)
Bottom of indoor unit
Supply air
Supply
air
Supply
air
Intake
air
Intake
air
Unit:mm(in.)
HModel
PEAD-A24,30AA5 PEAD-A36,48AA5
NMJKL
1200 1500
(47-1/4) (59-1/16)
49
54 320
330 4
51280
990 10
12
(1-15/16)
(2-3/16)
(12-5/8)
(13) (39)
(50-7/16)
1100
(43-5/16)
P
(55-1/8)
1400
250~350
(15-3/4)~(19-11/16)
400~500
Q
1700
(66-15/16)
(78-3/4)
2000
R
(9-7/8)~(13-13/16)
B
Fig.3
Fig.4 Fig.5
(Access door 2 is not required if enough space is available below
the unit for a maintenance worker to work in.)
• Create access door 1 and 2 (450x450mm each) as shown in Fig.2. (1)When a space of 300mm or more is available below the unit between the unit and the ceiling. (Fig.1) and electric box in one of the following ways. Secure enough access space to allow for the maintenance, inspection, and replacement of the motor, fan, drain pump, heat exchanger, [Maintenance access space] • Create access door 4 below the electric box and the unit as shown in Fig.5.
(At least 20mm of space should be left below the unit as
shown in Fig.3.)
(2)When a space of less than 300mm is available below the unit
between the unit and the ceiling.
Select an installation site for the indoor unit so that it's maintenance access space will not be obstructed by beams or other objects.
or
• Create access door 1 diagonally below the electric box and access door 3 below the unit as shown in Fig.4.

17
7WIRING DIAGRAM
PEAD-A24, 30, 36, 42AA5
S2
S3
R.B.
TB6
1
2
1
2
TB15
TB4
TRANSMISSION
WIRES
DC12V
S1
TO OUTDOOR
UNIT
INSIDE SECTION OF CONTROL BOX
1
2
ACL
4
+
DC280-340V
RECTIFIER
CIRCUIT
1
1
CNXB1
-
14
3
125
(BLUE)
(BLUE)
CNXA1
153
P. B .
CNMF
CNP
CNXC1 174
FAN MOTOR
1~
X01
DRAINPUMP
M
CND
DSA
F01
ZNR02
ZNR01
X10
3~
MS
(RED)
RFI
5
5
2
2
1
1
1
5
4
1
5
2 1
1
1
2
4
9
3
1
9
2
1
W.B.
I.B.
CN1
91
LED1
BZ1 RU
SW1 SW2
LED3
CN2A
SW2
(BLUE)
SW1
CNXA2
t˚
TH2 TH5 FS
CN24-1
CN24-2
CN2L
CNF
(BLUE)
(BLUE)
CN22 U
U
TH1
CN3C
(RED)
(YELLOW)
(BLUE)
(RED)
(RED)
(GREEN)
ON
OFF
CN4F
LED2
LED1
SW5
(BLACK)
CN44
(RED)
(BLACK)
CNXC2
CNXB2
CN51
CN25
CNER
CN41
CN105
CN90
CN20
CN2C
SWE
CN32
1
2
1
4
t˚ t˚
SYMBOL NAME SYMBOL NAME SYMBOL NAME
I.B.
INDOOR CONTROLLER BOARD I.B. INDOOR CONTROLLER BOARD
TB4
TERMINAL BLOCK
CN24-1 CONNECTOR (HEATER CONTROL 1ST) SW1 SWITCH (FOR MODEL SELECTION)
(INDOOR/OUTDOOR CONNECTING LINE)
CN24-2
CONNECTOR (HEATER CONTROL 2ND)
SW2 SWITCH (FOR CAPACITY CODE) TB5 TERMINAL BLOCK
CN25 CONNECTOR (HUMIDITY OUTPUT)
SW5 SWITCH (FOR MODE SELECTION)
(REMOTE CONTROLLER TRANSMISSION LINE)
CN2A CONNECTOR (0-10V ANALOG INPUT) SWE CONNECTOR (EMERGENCY OPERATION) OPTIONAL PARTS
CN2C CONNECTOR (ERV OUTPUT) P. B. POWER SUPPLY BOARD W.B.
IR WIRELESS REMOTE CONTROLLER BOARD
CN2L CONNECTOR (LOSSNAY) F01 FUSE AC250V 6.3A RU RECEIVING UNIT
CN32 CONNECTOR (REMOTE SWITCH)
ZNR01,02
VARISTOR
BZ1 BUZZER
CN41 CONNECTOR (HA TERMINAL-A)
DSA ARRESTOR
LED1 LED (RUN INDICATOR)
CN51
CONNECTOR (CENTRALLY CONTROL)
X01 AUX. RELAY SW1 SWITCH (HEATING ON/OFF)
CN90 CONNECTOR (WIRELESS) X10 AUX. RELAY SW2 SWITCH (COOLING ON/OFF)
CN105
CONNECTOR (RADIOFREQUENCY INTERFACE)
TH1
INTAKE AIR TEMP.THERMISTOR R.B.
WIRED REMOTE CONTROLLER BOARD
LED1 LED (POWER SUPPLY)
TH2
PIPE TEMP.THERMISTOR/LIQUID TB6 TERMINAL BLOCK
LED2
LED (REMOTE CONTROLLER SUPPLY)
TH5
COND./EVA.TEMP.THERMISTOR
(REMOTE CONTROLLER TRANSMISSION LINE)
LED3
LED (TRANSMISSION INDDOR-OUTDOOR)
ACL AC REACTOR (POWER FACTOR IMPROVEMENT)
CNER CONNECTOR (ERV INPUT) FS
FLOAT SWITCH
CNF CONNECTOR (HUMIDITY INPUT)
RFI
RADIO FREQUENCY INTERFACE FOR RF THERMOSTAT
Note1.Since the outdoor side electric wiring may change be sure
to check the outdoor unit electric wiring for servicing.
2.Indoor and outdoor connecting wires are made with pola rities,
make wiring matching terminal numbers (S1,S2,S3).
3.Symbols used in wiring diagram above are as follows.
, :CONNECTOR
:TERMINAL
(HEAVY DOTTED LINE):FIELD WIRING
(THIN DOTTED LINE):OPTIONAL PARTS
4.Use copper supply wire.
SYMBOL EXPLANATION
ON
1 2 3 4 5
ON
1 2 3 4 5
ON
1 2 3 4 5
ON
1 2 3 4 5
ON
1 2 3 4 5
ON
1 2 3 4 5
ON
1 2 3 4 5
MODEL SW1 SW2
SW5
PEAD-A24AA5
PEAD-A30AA5
PEAD-A36AA5
PEAD-A42AA5
ON
1 2 3 4 5
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
The black square( ) indicates a switch position.

18
8REFRIGERANT SYSTEM DIAGRAM
PEAD-A24, 30, 36, 42AA5
Thermistor TH2
Pipe temperature(Liquid)
Distributor
with strainer (#50)
Thermistor TH5
(Cond./ Eva.temperature)
Thermistor TH1
(Room temperature)
Refrigerant flow in cooling
Refrigerant flow in heating
Strainer (#50)
Strainer (#50)
Heat exchanger
Refrigerant GAS pipe connection
(Flare)
Refrigerant LIQUID pipe connection
(Flare)