Page 27
CBX32MV SERIES
Table 14. CBX32MV with ComfortSense
t
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
t
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 begins
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
t
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.
Room Thermostat Calls for First− and Second−Stage Cooling
BASIC MODE (Only active on a Y1 thermostat demand)
Normal Operation
1
On
On
On
On
Acceptable
24 VAC
High
100%
ComfortSense
t
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
On
Acceptable
24 VAC
High
100%
Dehumidification mode begins
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
t
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.
