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2100-566D
Page
8
of
20
Sequence of Operation:
Two-Stage Heat Pump, no Economizer
Operation
G Y/O Y1 Y2 W1/E W2 O/B D A
Fan Only
X
1
st
Stage Cooling
X
X
2
nd
Stage Cooling
X
X
X
1
st
Stage Heating
X
X
X
2
2
nd
Stage Heating
X
X
X
X
2
3
rd
Stage Heating
X
X
X
X
3
X
2
Emergency Heat
X
X
X
3
Dehumidification
X
Ventilation
1
X
1
X
NOTE
1
:
CS9B(E)-THOC
(CO
2
Sensing Capability) Models will activate both
G
and
A
terminals upon a ventilation call,
however the
CS9B(E)-THO
(NON-CO
2
Sensing) Models will activate the
A
terminal only if there is an existing call for the
indoor blower, whether through space conditioning, or through constant fan operation.
NOTE
2
:
CompleteStat
TM
controller can be configured to energize reversing valve in cooling (See
System Selection
).
NOTE
3
: Electric Heat must be configured for a Heat Pump application, see
Auxiliary Heat/Electric Heat Setup.
Sequence of Operation:
Single-Stage Heat Pump, with Economizer
Operation
G Y/O Y1 Y2 W1/E W2 O/B D A
Fan Only
X
1
st
Stage Cooling
X
X
2
nd
Stage Cooling
X
X
X
1
st
Stage Heating
X
X
X
X
2
2
nd
Stage Heating
X
X
X
X
3
X
2
Emergency Heat
X
X
X
3
Dehumidification
X
Ventilation
1
X
1
X
NOTE
1
:
CS9B(E)-THOC
(CO
2
Sensing Capability) Models will activate both
G
and
A
terminals upon a ventilation call,
however the
CS9B(E)-THO
(NON-CO
2
Sensing) Models will activate the
A
terminal only if there is an existing call for the
indoor blower, whether through space conditioning, or through constant fan operation.
NOTE
2
:
CompleteStat
TM
controller can be configured to energize reversing valve in cooling (See
System Selection
).
NOTE
3
: Electric Heat must be configured for a Heat Pump application, see
Auxiliary Heat/Electric Heat Setup.
Sequence of Operation:
Two-Stage Heat Pump, with Economizer
Operation
G Y/O Y1 Y2 W1/E W2 O/B D A
Fan Only
X
1
st
Stage Cooling
X
X
2
nd
Stage Cooling
X
X
X
3
rd
Stage Cooling
X
X
X
X
1
st
Stage Heating
X
X
X
X
2
2
nd
Stage Heating
X
X
X
X
X
2
3
rd
Stage Heating
X
X
X
X
X
3
X
2
Emergency Heat
X
X
X
3
Dehumidification
X
Ventilation
1
X
1
X
NOTE
1
:
CS9B(E)-THOC
(CO
2
Sensing Capability) Models will activate both
G
and
A
terminals upon a ventilation call,
however the
CS9B(E)-THO
(NON-CO
2
Sensing) Models will activate the
A
terminal only if there is an existing call for the
indoor blower, whether through space conditioning, or through constant fan operation.
NOTE
2
:
CompleteStat
TM
controller can be configured to energize reversing valve in cooling (See
System Selection
)
NOTE
3
: Electric Heat must be configured for a Heat Pump application, see
Auxiliary Heat/Electric Heat Setup.