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Unit Operating Sequences
This section details unit operating sequence for non−communicating systems.
NOTE −
For communicating systems, see the icomfort Touch
t
thermostat installation instruction.
Table 13. CBX32MV with ComfortSense
t
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
t
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
t
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.
