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48VGUK: Installation Instructions
Table 11
to find lower speed/airflows available at that total static
pressure. All airflows not shaded in
speed. The speed chosen must provide airflow of between 320 CFM per
ton of cooling and rated airflow. Set dip switches according to speed
desired. Repeat for low stage cooling.
To activate the enhanced dehumidification cooling mode, the shunt
jumper in
Fig. 19
must be moved from the No DH to DH selection (See
Fig.
19, close up).
Continuous Fan (All models): Refer to
available for Continuous Fan Operation.
Cooling Sequence of Operation
a. Continuous Fan
(1.) Thermostat closes circuit R to G energizing the blower
motor for continuous fan. The indoor fan is energized on
low speed.
b. Cooling Mode
(1.) Low Stage: Thermostat closes R to G, R to Y1. The
compressor and indoor fan are energized on low speed. The
outdoor fan is also energized.
(2.) High Stage: Thermostat closes R to G, R to Y1, R to Y2.
The compressor and indoor fan are energized on high speed.
The outdoor fan is also energized.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 11
are acceptable for Dehum
Table 9
for acceptable taps
Shunt in no
dehumidification
Fig. 19 – Interface Fan Board (IGC) 208/230 VAC Models
24
2-Pin Terminal
DH
DH
DH
DH
Shunt in
dehumidification
position
position
A200280
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