Manual 2100-696A
Page
16 of 17
Sequence of Operation
On/Off ventilation options energize when the “A” low
voltage strip terminal is energized signaling occupancy,
and de-energize when “A” terminal is no longer
receiving a 24VAC signal. The “G” low voltage strip
terminal is used to operate the indoor blower for unit
airflow.
The M On/Off CRV vent option is a damper blade
operated by a 24VAC motor that when energized opens
to a pre-adjusted setting. The airflow amount being
brought in will be dependent on the blower speed
during unit operation.
Unit
Operation
Occ.
Signal
Low Voltage 24VAC
Speed Taps
Fan Speed
Comp.
Oper.
Damper
G
Y1
Y2 W1 W2
A
D
1
2
3-4-5
1
Fan Only
Yes
X
X
X
Vent
Off
Open
Fan Only
No
X
X
Vent
Off
Closed
BC Cooling
Yes
X
X
X
X
B Climate
On
Open
BC Cooling
No
X
X
X
B Climate
On
Closed
Full Load Cool
Yes
X
X
X
X
X
X
Lo/Med/Hi
On
Open
Full Load Cool
No
X
X
X
X
X
Lo/Med/Hi
On
Closed
1st Stage Heat
Yes
X
X
X
Lo/Med/Hi
Off
Open
1st Stage Heat
No
X
X
Lo/Med/Hi
Off
Closed
2nd Stage Heat
Yes
X
X
X
X
Lo/Med/Hi
Off
Open
2nd Stage Heat
No
X
X
X
Lo/Med/Hi
Off
Closed
Dehumidify
2
Yes
X
X
X
X
B Climate
On
Open
Dehumidify
2
No
X
X
X
B Climate
On
Closed
¹
Fan speed is selectable through the blower speed control terminal block. LO (default), MED or HI speeds can be used.
2
Dehumidification operation is disabled when a call for heating or cooling occurs. Unit runs at Balanced Climate speed
during dehumidification operation.
BC and B Climate − Balanced Climate
TABLE 1
Unit Operation with M Ventilation Option (On/Off CRV)