Carrier 42PQV - Display of Selected Functions

42PQV
5
Display of selected functions
WARNING:
During heat pump operation the unit will undergo several defrost cycles to remove ice that might collect on the outdoor unit in very low ambient
temperatures. In these cycles, fan speed will automatically stop, louvre(flap) will be fixed at horizontal position and can not be varied until defrost
cycle is completed.
1. Signal transmission symbol
• Ventilation (fan only)
• Heating (heat pump models only)
• Automatic (heat pump models only)
• Cooling and dehumidification
• Dehumidification only
2. Signal transmission symbol
3. Temperature selected
4. Address selected
5. Temperature unit of measurement (°C or °F)
6. Unit configuration
7. Batteries exhausted indicator
8. Louvre positioning (Flap)
9. Fan speed
10. Powerful mode
11. Economical mode
12. ON timer selected
13. Night timer active
14. DAILY timer active (Everyday)
15. ON timer and OFF timer or current time
16. OFF timer selected
AM
PM
A
B
1
2
F
3
5
7
8
11
10
13
14
15 16
1
2
4
6
9
12
Type of protection Effect of protection Operation mode When on
Indoor coil high Compressor speed Heating and During unit operation
temperature protection slow down or off Auto mode at high ambient
Indoor coil freeze up Compressor speed Cooling, Dry and During unit operation
protection slow down or off Auto mode at low ambient
Discharge gas high Compressor speed Cooling, Heating, Dry During unit operation
temperature protection slow down or off and Auto mode at high ambient
Defrost cycle Indoor fan off
Heating and During unit operation at low
Auto mode and humid ambient
Against frequent
Compressor time delay
Cooling, Heating, Dry
During unit operation
compressor cycling and Auto mode
Table I: Unit protection devices