Mitsubishi WT04980X02 Installation Manual
Air Handling Unit Controller
PAC-AH125, 140, 250M-H
FOR INSTALLER
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the controller.
GB
2
[Fig. 2.0.1]
12 3
456
3
[Fig. 3.0.1]
7
D
8
1 Controller
2 LEV-kit
3 Thermistor
4 Clip
5 Insulation
6 Tie band
7 Installation manual
8 Tube
C
A
E
B
L
K
H
I
J
F
G
A Air handling unit controller (PAC-AH · M-H)
B Air handling unit (field supply)
C Controller (field supply)
D Outdoor unit
E Heat exchanger (field supply)
F Gas pipe
G Liquid pipe
H LEV-kit
I Thermistor (gas pipe)
J Thermistor (liquid pipe)
K Thermistor (suction air)
L Thermistor (discharge air)
2
4
[Fig. 4.2.1]
B
A Controller
B Screw (field supply)
6
[Fig. 6.2.1]
A
A Remove the cap
A
410
260
[Fig. 6.2.2]
A
B
D
C
C
Type 63 - 140
A Heat exchanger (field supply)
B LEV-kit
C Brazing
D Linear expansion valve
E Outdoor unit
E
[Fig. 6.2.3]
[Fig. 6.3.0.1]
B
H
A
D
C
FF
C
G
B
Type 250
A
A Most sensitive point of the
thermistor
B
B Maximize the contact
G
E
H
[Fig. 6.3.0.2]
A Heat exchanger (field supply)
B LEV-kit
C Brazing
D Linear expansion valve
E Outdoor unit
F Refrigerant pipe size ø9.52 (field supply)
G Distributor (field supply)
H Refrigerant pipe size ø9.52 (field supply)
3
6
[Fig. 6.3.2]
[Fig. 6.3.1]
A
B
D
E
C
F
A Heat exchanger (field supply)
B Gas pipe
C Thermistor (gas pipe)
D Aluminum tape (field supply)
E Insulation
F Tie band
A
B
G
[Fig. 6.3.3]
7
[Fig. 7.0.1]
D
C
C
B
E
F
D
A Heat exchanger (field supply)
B Gas pipe
C Thermistor (liquid pipe)
D Aluminum tape (field supply)
E Insulation
F Tie band
G Capillary tube
A
B
A
C
A Thermistor (suction/discharge air)
B Clip
C Screw (field supply)
D Plate (field supply)
A
A Outer cover
B
CN31
SW3
SW1
CN20
CN21
CN29
CN22
CN30
CN32
G
CN2M
SW2
SW4
CN3T
SW7
F
T31
A2
v
K
T32
A1
T21
P
T22
T11
Q
T12
D2
L
T1
D1
W
T2
D12
M
White
D11
Yellow
R
Green
Black
D22
N
Red
C
D21
D32
D31
Brown
O
M1
IH
2
1
E
J
M2
S
D
B Inner cover
C Terminal block TB2
D Terminal block TB5
E Terminal block TB15
F Terminal block TBX
G Terminal block TB4
H Power supply (208 - 240 V)/Ear th
I To outdoor unit
J To remote controller
K Distant signal (ON/OFF)
L Operation signal
M Error signal
N Fan signal
O Defrost signal
P Thermistor (gas pipe)
Q Thermistor (liquid pipe)
R LEV-kit
S Distant signal
T Thermistor
U Transmission
V Thermistor (suction air)
W Thermistor (discharge air)
UTRSH
4
7
[Fig. 7.1.1]
AB D
[Fig. 7.2.1] [Fig. 7.2.2]
B
M1M2 21 21
TB3
SM1M2 SM1M2
TB5 TB15 TB5 TB15
[Fig. 7.2.3] [Fig. 7.2.4]
2
1
DC10~13 V
B
AB
12
E
CCC
AA
TB3
CC
A
M1M2
B
A Switch 16 A B Overcurrent protection 16 A
C Indoor unit D Total operating current be less than 16 A
E Pull box
AA
SM1M2 SM1M2
TB5 TB5
A Terminal block for AHU controller/
indoor transmission cable
B Terminal block for outdoor trans-
mission cable
C Remote controller
A Non-polarized
B Remote Controller
M2
M1
DC24~30 V
12
(A, B)
CC
S
A
B
[Fig. 7.4.1]
8
[Fig. 8.1.1]
B
B
C
A Bunch of wires
D
A
B Plug
C Tube
D Insulation tape
9
[Fig. 9.0.1]
A
A Address switch
B SW2
5
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