Carrier 42QHC012D8S Series - Page 58

27
17.4 Outdoor unit point check function
A check switch is included on the outdoor PCB.
Push SW1 to check the unit's status while running. The digital display shows the following codes each time
the SW1 is pushed.
Number
of
Presses
Display
Remark
0
Normal display
Displays running frequency, running state, or malfunction code
1
Quantity of indoor units with working connection
Actual data
Display
Number of indoor unit
1
1
2
2
3
3
4
4
2
Outdoor unit running mode code
Off: 0,Fan only: 1, Cooling: 2, Heating: 3, Forced cooling: 4. Forced
defrosting :A
3
Indoor unit A capacity
The capacity unit is horse power. If the indoor unit is not connected, the
digital display shows the following: “――”
(9K:1HP,12K:1.2HP,18K:1.5HP)
4
Indoor unit B capacity
5
Indoor unit C capacity
6
Indoor unit D capacity
7
Indoor unit E capacity
8
Indoor unit A capacity demand code
Norm code*HP
(9K: 1HP,12K: 1.2HP,18K: 1.5HP)
9
Indoor unit B capacity demand code
10
Indoor unit C capacity demand code
11
Indoor unit D capacity demand code
12
Indoor unit E capacity demand code
13
Outdoor unit amendatory capacity demand code
14
The frequency corresponding to the total indoor
units' amendatory capacity demand
15
The frequency after the frequency limit
16
The frequency sending to compressor control
chip
17
Indoor unit A evaporator outlet temperature (T
2B
A)
If the temperature is lower than -9 ℃, the digital display shows “-9.” If the
temperature is higher than 70 ℃, the digital display shows “70.” If the
indoor unit is not connected, the digital display shows: “――”
18
Indoor unit B evaporator outlet temperature (T
2B
B)
19
Indoor unit C evaporator outlet temperature
(T
2B
C)
20
Indoor unit D evaporator outlet temperature
(T
2B
D)
21
Indoor unit E evaporator outlet temperature (T
2B
E)
22
Indoor unit A room temperature (T
1
A)
If the temperature is lower than 0 ℃, the digital display shows “0.” If the
temperature is higher than 50 ℃, the digital display shows “50.” If the
indoor unit is not connected, the digital display shows: “――”
23
Indoor unit B room temperature (T
1
B)
24
Indoor unit C room temperature (T
1
C)
25
Indoor unit D room temperature (T
1
D)
26
Indoor unit E room temperature (T
1
E)
27
Indoor unit A evaporator temperature (T
2
A)
If the temperature is lower than -9 ℃, the digital display shows “-9.” If the
temperature is higher than 70 ℃, the digital display shows “70.” If the
indoor unit is not connected, the digital display shows: “――”
28
Indoor unit B evaporator temperature (T
2
B)
29
Indoor unit C evaporator temperature (T
2
C)
30
Indoor unit D evaporator temperature (T
2
D)
31
Indoor unit E evaporator temperature (T
2
E)
32
Condenser pipe temperature (T3)