Wiring Diagrams - Carrier 40MBAB Series Service Manual

40MBAB: Service Manual

WIRING DIAGRAMS

UVLE D
Output
CN4 3
Output:24VAC
Output:12VDC
Output:5VDC
WATER LEVEL
SWITCH
DRY CONTACT
Alarm
DRY CONTACT
work
Fig. 15 — Wiring Diagram Sizes 18K/24K/30K/36K - Non Light-Commercial Models
Table 3 — Wiring Diagram Sizes 18K/24K/30K/36K - Non Light-Commercial Models
CODE
Indoor ECM Motor
ECM
Room Temperature
T1
Coil Temperature Sensor
T2
T2A Indoor Coil Inlet Temperature Sensor
T2B Indoor Coil Outlet Temperature Sensor
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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
CN2 0
N L
S1 S2
CN1 1
Cn1 8
Y/ G 2
COMMUNICATION
TO OUTDOOR UNIT
3
Cn1 2
Output:24VAC
6
TRAN S
RE D
RE D
BLU E
RE D
2
2
L1 L2
TO OUTDOOR UNIT
OR POWER
PART NAME
10
Remot e
Contro l
4
ON/OF F
CN 7 CN1 4
CN 2
Output:+12VDC
Output:+15VDC
JR 1
CN1 1
CN 6 CN 9 CN1 0
24V THERMOSTAT
Output:+5VDC
CN 3
E Y X
To CC M
Comm.Bu s