28
Main AHU Control Kit Only
Indicates that the fan has three speeds:
Low, Medium, and High. (default)
Main AHU Control Kit Only
Indicates that the fan has two speeds: Low,
and High.
Main AHU Control Kit Only
Indicates that the fan has one speed: High.
Reserved.
Indicates that the dry contact “DEH”
CLOSED for dehumidication OFF, and
“DEH” OPENED for dehumidication ON.
(default)
Indicates that the dry contact “DEH”
CLOSED for dehumidication ON, and
“DEH” OPENED for dehumidication OFF.
(default)
Air Handling Unit Fan Speed Setting
Congure the number of fan speeds using SW5-1 and
SW5-2. Main kit only.
The fan control logic is shown in the Fan Control section.
NOTE - Dip switch handle location is shown as a solid
black box in the tables.
0 = OFF (down)
1 = ON (up)
NOTE - Turn o power to the unit before setting the dial/
dip switch. The function will be available when the unit is
powered on again.
DEH (Dehumidication) Control Logic Setting
SW3-3 denes the normal open or normal closed status
of dehumidication relay output DEH (dry contact 24V 1A
max) at terminal CN51.
SW3-3 set at 0 (default) indicates the relay is CLOSED
when dehumidication demand is OFF. The relay is OPEN
when dehumidication demand is ON.
SW3-3 set at 1 indicates the relay is CLOSED when
dehumidication demand is ON. The relay is OPEN when
dehumidication demand is OFF.
ON
1
2 3
SW3
4
ON
1
2 3
SW3
4
SW3-4 is reserved. Do not adjust.
SW4 is reserved. Do not adjust.
ON
1
2 3
SW5
ON
1
2 3
SW5
ON
1
2 3
SW5
ON
1
2 3
SW5