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Carrier 42PHQ P Series - Display of Selected Functions; Indoor Unit Display Indicators Explained; Unit Protection Devices Overview

Carrier 42PHQ P Series
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42PHQ...P
R-410A
GB - 5
ENGLISH
Display of selected functions
1. Operating mode (from left to right):
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 selector
5. Temperature unit of measurement (°C or °F)
6. Unit configuration
7. Batteries exhausted indicator
8. Louvre positioning (Flap)
9. Fan speed
10. Personalisation active
11. ON timer selected
12. Night timer active
13. DAILY timer active (Everyday)
14. ON timer, OFF timer and current time
15. OFF timer selected
16. Ionizer active
Table I: Unit protection devices
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, the indoor fan will be automatically off and cannot operate until defrost cycle is completed.
Model Type of protection Effect of protection Operation mode When on
Indoor coil Compressor and Heating in
During unit operation
Heat pump
high temp. protection outdoor fan off heat pump mode
Defrost cycle Indoor fan off
Heating in
During unit operation
heat pump mode
Indoor coil
Compressor off Cooling During unit operation
freeze protection
Against frequent Compressor Cooling or heating At unit start-up or
compressor cycling time delay in heat pump mode change of operating mode
Cooling only
and
heat pump
1
2
4
6
9
11
3
5
7
8
10
16
12
15
13
14
1
2

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