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40MUAA: Service Manual
WIRING DIAGRAMS
WIRING DIAGRAM
NOTE:
1.The parts with a dotted line indicates
CODE
optional features.
ECM
2.Remove the short connector of JR1
when you use the "on-off" function.
T1
3.Remove the short connector of J1
T2
when using the "WATER LEVEL
T2A
SWITCH" function.
T2B
4.
This symbol indicates the element
is optional, the actual shape prevails.
UVLED
OUTP UT
CN4 3
Output:24VAC
6
Electroni c
Output:12VDC
expansio n valv e
Output:5VDC
WATER LEVEL
SWITCH
DRY CONTACT
ALAR M
DRY CONTACT
WOR K
NOTE:
1.The other switches should be set as
"Off" state from factory .
2.The specific use of the switches please
reference the application's manual.
3.The CN5/CN23/CN33 connects to left and right terminals.
FOR SETTING POWER (DC MOTOR MODEL ONLY)
0
0
0
ENC1
8
8
8
CODE
4
5
7
CAPACITY
53
54 ~71
72 ~90
FACTORY
ACCORDING TO RELATED MODEL
SETTING
CODE
CODE2
5
CN5
6
CN6
9
CN9
CN10
10
11
CN11
12
CN12
15
CN15
CN18
18
CN20
20
22
CN22
29
CN29
33
CN33
CN34
34
CN46
46
43
CN43
23
CN23
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
PART NAME
INDOOR ECM MOTOR
ROOM TEMP. SENSOR
COIL TEMP> SENSOR
INDOOR COIL INLET TEMP.SENSOR
INDOOR COIL OUTLET TEMP.SENSOR
ECM
M
2
3
4(3)
CN6
CN4 6
CN2 9
Output:5VDC
Output:5VDC
Output:5VDC
Output:15VDC
INDOOR UNIT
J1
MAINBOARD
L and N :230VAC
CN20
N
L
S1 S2
CN 11
CN1 8
Y/ G
COMMUNICATION
T O OUT DOOR UNIT
0
0
0
0
8
8
8
8
9
8
A
91 ~10 5
106 ~14 0 141 ~16 0
16 1
Fig. 14 — Wiring Diagram - All Models
Table 4 — Wiring Diagram - All Models
output: 0-5VDC for water level switch connection
output: 5VDC for T2A, T2B (Temperature sensor)
output: 24VAC for 24V Interface
communication: 15VDC for 24V Interface
input: 230VAC High voltage
output: 24VAC for Heaters
output: 220VAC for ECM motor (fan)
output: 0V connection to ground
communication: 0-24VDC Low High voltage
output: 220VAC High voltage to transformer
output: 5VDC for T2 (Temperature sensor)
output: Normally open dry contact
output: 12VDC for ECM motor control
output: 5VDC for T1 (Temperature sensor)
output: 24VAC UVLED
output: Normally open dry contact - work
24V THERMOSTATS SETTING
0
S3
8
CODE
0~F
FACTORY
SETTING
FOR SETTING NET ADDRESS
0
S1 +S2
8
CODE
0~F
NETADDRESS
0~15
FACTORY
3
SETTING
CN1 2
Output:24VAC
6
TRAN S
RED
RED
BLU E
RED
2
2
2
L1
L2
TO OUTDOOR UNIT
OR POWER
B
INDOOR UNIT MAINBOARD CONNECTION
11
ON
ON
ON
SW 1
SW 3
SW 2
1 2 3
4
1 2 3
4
1 2 3
4
ON~OF F
ON~OF F
O
N
~
O
F
0
0
ON
ON
ON
1 2
1 2
8
1 2
8
0~F
0~F
16 ~31
32 ~47
Remote
Control
ON/OF F
CN 7
CN 2
Output:+15VDC
JR 1
CN 6
CN 9
CN1 0
24V THERMOSTAT
ON
ON
S4
SW 4
1 2 3
4
1 2
F
ON~OF F
ON~OF F
0
ON
1 2
8
0~F
48 ~63
4
CN1 4
Output:+12VDC
CN 11
Output:+5VDC
CN 3
E Y X
To
CC M
Com m
.Bu s
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