Carrier 42QHC024D8S Series Service Manual

6
T4
E
D
C
B
A
A+
8.4.4.2 Indoor fan running rules
For all models:
In heating mode, indoor fan can be selected as high, medium, low and auto. The anti-cold- wind function has
the priority.
When the compressor is running, the indoor fan is controlled as below:
Setting fan
speed
Actual fan speed
H（=H）
H+(H+=H+G)
M(M=M)
M+(M+=M+Z)
L(L=L)
L+(L+=L+D)
H-（H-=H-G)
M-(M-=M-Z)
L-(L-=L-D)
T1-Td℃
L
H
M
-
If the compressor stops caused by the room temperature rising, the indoor fan will be forced to run 127
seconds with breeze. During this period, the anti-cold-wind is disabled.
Auto fan action in heating mode:
T1-Td
L
(H+-L)*0.4+L
(H+-L)*0.6+L
H+
(H+-L)*0.8+L
(H+-L)*0.6+L
(H+-L)*0.2+L
8.4.4.3 High evaporator coil temp.T2 protection:
If T2>63℃, the indoor unit has no capacity demand and resume till 48℃.

Carrier 42QHC024D8S Series Specifications

General

Brand	Carrier
Model	42QHC024D8S Series
Category	Air Conditioner
Language	English