Cooper&Hunter CH-60AHU Air Conditioner

User Manual - Page 42

For CH-60AHU.

PDF File Manual, 53 pages, Read Online | Download pdf file

CH-60AHU photo
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Wiring
Control Logic
LED DISPLAY
The control displays acve faults switchs on the
LED display. When the control displays the fault
switch and the LED flashes quickly, there is
something wrong with the system. Refer to the
detailed fault switchs.
When the paron control, DH is connected to
the DH port of the paron controller. When the
24V signal of DH changes to 0V, the air volume
drops to 80% of the nominal refrigeraon air
volume.
The WORK port is linked with the fan. When the
fan is running, the relay is closed; if an acve 24V
signal is required, it can be directly connected to
the G and C ports.
Indoor unit Connector
R 24V
C COM
G Fan
Y
Connector Purpose
Y/Y2
B
W
W1
W2
E/AUX
DH/DS/BK
L
First period cooling
Second period cooling
Heang(Four-way valve)
Heang operaon
Electric heang operaon 1
Electric heang operaon 2
Emergency heang
Drying regionally
Error signal
UV, fresh air or negave ion wiring
work
24V control signal or 208/230V power supply
UV, fresh wind or
negave ions, etc
CN23
Page 42
S4-1 DIP switch of
Perform disconnecon and short-circuit to
achieve paron, control or dehumidifcaon
Dehumidificaon control requires indirect
humidifier at DH and R. Set S4-1 as OFF.
When the humidity rises and exceeds the set
value of the humidifier, the 24V signal of DH
changes to 0V, the refrigeraon system starts the
dehumidificaon operaon, and the air volume
drops to 80% of the nominal refrigeraon air
volume.
Dehumidificaon control wiring
1 2
ON
S4
DH
R
HUMIDISTAT
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