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Carrier 42QHC024D8S Series Service Manual

Carrier 42QHC024D8S Series
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7
8.4.4.4 Prevent Over-Heating
In heating mode, when the indoor unit has no capacity requirement due to indoor room temperature
increased, the Indoor fan will run in super breeze. (Anti-cold wind function has the priority)
8.4.4.5 Defrosting mode
Condition of defrosting:
AC will enter the defrosting mode according to the value of temp. of T3 and the value range of temp. change
of T3 and also the compressor running time.
Condition of ending defrosting:
If any one of the following items is satisfied, the defrosting will finish and the machine will turn to normal
heating mode.
----T3 rises to be higher than TCDE1.
----T3 keeps to be higher than TCDE2 for 80 seconds.
----The machine has run for 10 minutes in defrosting mode.
Defrosting action
4-Way valve
Indoor fan
Outdoor fan
480P
PMV
PMV running
4 mins with 480P
Compressor
10S
30S
TimeA
10S
no longer than 10min
Cool-F9
Anti cold wind
8.4.5 Auto-mode
This mode can be chosen by remote controller and the setting temperature can be changed between
17~30.
In auto mode, the machine will choose cooling, heating or fan-only mode according to the difference
between T1 and TS.
For all models:
T1-TS
Running mode
T1-TS2
Cooling
-2< T1-TS2
Fan-only
T1-TS-2
Heating
Indoor fan will run at auto fan of the relevant mode.
The louver operates same as in relevant mode.

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Carrier 42QHC024D8S Series Specifications

General IconGeneral
BrandCarrier
Model42QHC024D8S Series
CategoryAir Conditioner
LanguageEnglish

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