Page 49
CBX32MV
This section details unit operating sequence for non-communicating systems.
NOTE - For communicating systems, see the iComfort thermostat installation instruction.
Table 14. CBX32MV with ComfortSenset 7000 Thermostat and Single-Stage Outdoor Unit Operating Sequence
Operating Sequence System Demand System Response
System
Condition
Step
Thermostat Demand Relative Humidity
Comp
Air
Handler
CFM
(COOL)
Comments
Y1 Y2 O G W1 W2 Status D
NO CALL FOR DEHUMIDIFICATION
Normal Operation 1 On On On Acceptable 24 VAC High 100%
Compressor and indoor
air handler follow
thermostat demand
BASIC MODE (Only active on a Y1 thermostat demand)
Normal Operation 1 On On On Acceptable 24 VAC High 100%
ComfortSense 7000
thermostat energizes Y1
and de-energizes D on a
call for dehumidification.
NOTE - No over cooling.
Dehumidification
Call
2 On On On Demand 0 VAC High 70%
PRECISION MODE (Operates independent of a Y1 thermostat demand)
Normal Operation 1 On On On Acceptable 24 VAC High 100%
Dehumidification mode
begins when humidity is
greater than set point
Dehumidification
call
2 On On On Demand 0 VAC High 70%
Dehumidification
call ONLY
1 On On On Demand 0 VAC High 70%
ComfortSense 7000 will
keep outdoor unit
energized after cooling
temperature setpoint has
been reach in order to
maintain room humidity
setpoint.
NOTE - Allow to over
cool 2
0
F from cooling set
point.
Table 15. CBX32MV with ComfortSenset 7000 Thermostat and Two‐Stage Outdoor Unit Operating Sequence
Operating Sequence System Demand System Response
System
Condition
Step
Thermostat Demand Relative Humidity
Compre
ssor
Air
Handler
CFM
(COOL)
Comments
Y1 Y2 O G W1 W2 Status D
No Call for Dehumidification
Normal Operation
- Y1
1 On On On Acceptable 24 VAC Low 70%
Compressor and indoor air
handler follow thermostat
demand
Normal Operation
- Y2
2 On On On On Acceptable 24 VAC High 100%
Room Thermostat Calls for First-Stage Cooling
BASIC MODE (Only active on a Y1 thermostat demand)
Normal Operation 1 On On On Acceptable 24 VAC Low 70%
ComfortSense 7000 ther
mostat energizes Y2 and de-
energizes D on a call for
dehumidification
NOTE - No over cooling.
Dehumidification
Call
2 On On On On Demand 0 VAC High 70%
PRECISION MODE (Operates independent of a Y1 thermostat demand)
Normal Operation 1 On On On Acceptable 24 VAC Low 70%
Dehumidification mode be
gins when humidity is greater
than set point
Dehumidification
call
2 On On On On Demand 0 VAC High 70%
Dehumidification
call ONLY
1 On On On On Demand 0 VAC High 70%
ComfortSense 7000
thermostat will keep outdoor
unit energized after cooling
temperature setpoint has
been reached in order to
maintain room humidity
setpoint.
NOTE — Allow to over cool
2
0
F from cooling set point.
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