13
Fig. 18 —40VMA072-096 Typical Wiring Diagram
LEGEND
NOTE:
Field wiring must use copper conductors only
ACB
—
Auxiliary Control Board
ALARM
— Warning Lamp
AUXH
—
Output for Auxiliary Heat
CS
—
Condensate Switch
CTON
—
Output for Cooling Operation
EEV
—
Electronic Expansion Valve
FAN
—
Output for Fan Operation
FM
—
Indoor Fan Motor
HTON
—
Output for Heating Operation
PUMP
—
Pump Motor
T1/T0
—
Room Temperature Sensor
TA
—
Room Temperature Sensor
T2A
—
Inlet Pipe Temperature Sensor
T2B
—
Outlet Pipe Temperature Sensor
XP1-8
— Connectors
XS1-4
— Connector
XT1-2
—
Terminal Block
----------
—
Optional Component or Field Wiring
SW8
3GOTHUGXJ
CN3 CN18
CN24
CN11
CN5
CN52
CN54
CN12
CN15
CN9
CN26
CN8
EARTH
7%
BLUE
7$
WHITE
77
RED
Display board
To wired controller
comm. bus
$+
%+
BLUE
WHITE
CN51
CN50
CN51
ACB interface
FAN CTON HTON AUXH
ON/OFF
SWITCH
PUMP
((9
&6
FM
3
;
;
3
;
3
;
3
;
3
;
3
6
;
;
6
;
6
;
6
XT2
( Current range: 0-1A)
( Voltage range: 0-24V AC/DC)
(1&
)$1$
To outdoor/indoor/MDC
units comm. bus
(1&
CN14
Occupancy sensor/ON-OFF
(Dry contact)
P
Q
P
Q
ALARM
POWER IN
LACK
B
RED
XT1
L1 L2
CN2{L_IN}
CN4{N_IN}
CN6
ACK
L
B
CN20
SVD
7$
*)SUZUX
JXO\KHUGXJ
CN13
CN3
“ +5V GND +12V ”
ONLY USED
FOR TESTING
CN27
CN57+
CN58-
CN29
*)SUZUX
JXO\KHUGXJ
CN13
CN3
RED
BLACK
BLUE
BLUE
RED
BLACK
BLUE
BLUE
~
~
+
-
FM
)$1%
8KIZOLOKX(XOJMK
Y/G