Electric Control Box Layout for the Indoor Unit
No. |
Name and Function |
||
|---|---|---|---|
A |
Side view of the electric box |
(1) SPD |
(2) FU1 |
(3) FU2 |
(4) Electric heater switch QF4 |
||
(5) Active power switchover contactor KM1 |
(6) Standby power switchover contactor KM2 |
||
(7) AC contactor KM3 |
(8) Receiver heater and water-cooled module main switch QF15 |
||
(9) Receiver heater and water-cooled module L/N |
(10) Outdoor unit power 1V/1U/1W |
||
(11) Active power switch QF1 |
(12) Active power PE |
||
(13) Standby power switch QF2 |
(14) Standby power PE |
||
(15) Outdoor unit power PE |
(16) Reserved |
||
(17) Rectifier module switch QF16 |
(18) Drive switch QF3 |
||
(19) Crankcase heater fuse FU3 |
(20) Crankcase heater contactor K1 |
||
(21) Electric heater contactor KM4 |
- |
||
No. |
Name and Function |
||||
|---|---|---|---|---|---|
A |
Signal cable terminal block |
X301 |
(1) |
Outdoor unit ON/OFF control |
Outdoor unit ON/OFF control + |
(2) |
Outdoor unit ON/OFF control – |
||||
(3) |
Smoke sensor |
Smoke sensor power supply (12 V DC) |
|||
(4) |
Smoke sensor feedback |
||||
(5) |
Remote shutdown |
Remote shutdown + |
|||
(6) |
Remote shutdown – |
||||
(7) |
Water detector sensor |
Water leakage detection + |
|||
(8) |
Water leakage detection – |
||||
X302 |
(1) |
Outdoor unit or water-cooled module RS485 control |
RS485-SW+ |
||
(2) |
RS485-SW- |
||||
(3) |
GND-ISO |
||||
(4) |
Common alarm 1 |
Common alarm 1 + |
|||
(5) |
Common alarm 1 - |
||||
(6) |
Common alarm 2 |
Common alarm 2 + |
|||
(7) |
Common alarm 2 - |
||||
(8) |
Reserved |
- |
|||
B |
ELV box |
(1) USB (USB port) |
(2) RS485/12 V (T/H module port) |
(3) CAN_IN (teamwork CAN/northbound RS485 input port) |
(4) FE_1 (input/output port of the FE ring network) |
(5) Filler panel |
(6) PSU 1 |
(7) PSU 2 |
(8) FE_2 (input/output port of the FE ring network) |
||
(9) CAN_OUT (teamwork CAN/northbound RS485 output port) |
(10) COM (northbound RS485 port) |
(11) DP (connecting to the display module) |
- |
||