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Service Manual -
VMH 9/12/18/24 SU & VMH30/36S D Series
24
27
For
A-VMH24SU-1, A-VMH30S
D
-1, A-VMH36S
D
-1
N
L
SHOW/SW
EARTH
[1.4]2014.06.26
EU-KFR105W/BP3T5N1-350S.D.13.WP1-1
L-OUT
N-OUT
CONNECT TO INVERTER driver
HIGH
L
OW
T2B-E
T2B-D
T2B-C
T2B-BT2B-A
TP
T4
T3
S-E
S-D
S-C
S-B
S-A
FAN_OUT
FAN_IN
A
B
C
D
E
202302141206
CN19
CN10
N
CN9
S
CN44
H
EA
T2
CN43
FAN
CN42
C
CN41
C
C
N40
H
EA
T1
CN34
C
N33
CN30
CN29
CN28
CN27
CN26
CN22
4
-W
AY
CN20
CN18
CN17
CN16
CN1
4
CompTop
CN12
CN11
CN8
CN6
CN5
CN
4
N
CN3
N
CN2
N-IN
CN1
L-IN
CN23
CN7
CN13
P-1
CN35
N
CN37
FAN-L
CN3
6
F
AN
-H
CN21
Electric Expansion
Value B
Electric Expansion
Value E
Electric Expansion
Value D
Electric Expansion
Value C
Electric Expansion
Value A
485
communication
testPort
connect to detector
external drive DC fan
motor input terminal
external drive DC fan
motor ouput terminal
current loop
communication A
current loop
communication B
current loop
communication C
current loop
communication D
current loop
communication E
digital display
Fuse
T30A/250V
connect to high and low
pressure sensor
connect to
trmp. sensor
Fuse 5A/250V
connect to earth
CN23 reserve
digital display button
test report
connect to detector
CN43-5,CN43-1/CN41,CN42
AC fan motor capacitor
connector
CN43-4/CN37 CONNECT TO
AC FAN MOTOR(LOW SPEED)
CN43-3/CN36
AC fan motor low speed
connector
CN43-2/CN35
AV fan motor N phase
current loop
communication C
Signal wire
24VDC Pulse wave
connect to the terminal
connect to the terminal
208-230V AC
power supply
room temp sensor
pipe temp sensor
(3.3V)
(3.3V)
high pressure sensor
low pressure sensor
Connect to the Indoor evap.pipe
out temp. sensor
T2B-A、T2B-B、T2B-C、T2B-D、T2B-E
+1
2V DC pul
se wave between (+1)-GND
+
12V DC pu
lse wave between (+2)-GND
+
12V DC pu
lse wave between (+3)-GND
+
12V DC pu
lse wave between (+4)-GND
+12V DC
+12V DC
6 5 4 3 2 1
when 4-way is ON, output 208-230VAC
connect to the 4-WAY
when heater is ON, output 208-230V AC
connect to compressor heater
CN44 L
CN10 N
CN40 L
CN4 N
CN22 L
CN3 N
connect to exhaust
temp. sensor
connect to the terminal
208-230V AC
external drive DC fan
motor connector
T3
T4
electric
heater1
electric
heater 2