Carrier 40VMM, Installation And Maintenance Instructions Manual

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15
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 — DC Indoor Fan
FM — Indoor Fan Motor
HTON — Output For Heating Operation
PUMP — Pump Motor
T1 — Room Temperature Sensor
T2A — Inlet Pipe Temperature Sensor
T2B — Outlet Pipe Temperature Sensor
XP1-4, — Connectors
XS1-4
XT1-2
— Terminal Block
---------- Optional Component or Field Wiring
Fig. 22 — 40VMM007-009 Typical Wiring Diagram
EEV
AH
BH
FM
ALARM
PUMP
CN24
CN2
N3 CN1 C 8
EARTH
Y/G
CN15 CN9 CN17
Y/G
L1 L2
controller
To wired
comm. bus
To outdoor/indoor/MDC
units comm. bus
CN51
CN50
ACB interface
( Current range: 0-1A)
(Voltage range: 0-24V AC/DC)
FAN CTON HTON AUXH
XP4 XS4
Display Board
RED BLUE
YELLOW
GRAY
WHITE
BLUE
ON/OFF
SWITCH
Main Board
CS
POWER IN
XT1
XT2
CN14 CN21 CN12
CN4
CN5
CN54
CN52
CN8
P
Q
P
Q
SW1 SW8
ENC2
ON ON
ENC1
Occupancy
sensor/ON-OFF
(Dry contact)
“ +5V GND +12V ”
ONLY USED
FOR TESTING
T2A
T2B
T1
XS3
XP3
XS1
XP1
XS2
XP2
RED WHITE BLUE