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Table 13. CBX40UV, with ComfortSense
Operating Sequence
System Demand
Thermostat Demand
System
Condition
Y1
Step
Normal Operation
1
On
− Y1
Normal Operation
2
On
− Y2
BASIC MODE (Only active on a Y1 thermostat demand)
Normal Operation
1
On
Dehumidification
2
On
Call
PRECISION MODE (Operates independent of a Y1 thermostat demand)
Normal Operation
1
On
Dehumidification
2
On
call
Dehumidification
1
On
call ONLY
BASIC MODE (Only active on a Y1 thermostat demand)
Normal Operation
1
On
Dehumidification
2
On
Call
PRECISION MODE (Operates independent of a Y1 thermostat demand)
Normal Operation
1
On
Dehumidification
2
On
call
Dehumidification
1
On
call ONLY
®
7000 Thermostat and Two-Stage Outdoor Unit Operating Sequence
Relative Humidity
Y2
O
G
W1
W2
Status
No Call for Dehumidification
On
On
On
On
On
Room Thermostat Calls for First−Stage Cooling
On
On
On
On
On
On
On
On
On
On
On
On
On
Room Thermostat Calls for First− and Second−Stage Cooling
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
System Response
Compre
D
ssor
Acceptable
24 VAC
Low
Acceptable
24 VAC
High
Acceptable
24 VAC
Low
Demand
0 VAC
High
Acceptable
24 VAC
Low
Demand
0 VAC
High
Demand
0 VAC
High
Acceptable
24 VAC
High
Demand
0 VAC
High
Acceptable
24 VAC
High
Demand
0 VAC
High
Demand
0 VAC
High
Page 30
Air
Handler
CFM
(COOL)
Comments
70%
Compressor and indoor air
handler
follow
thermostat
demand
100%
ComfortSense 7000 thermo-
70%
stat energizes Y2 and de−en-
ergizes D on a call for
dehumidification
70%
Note: No over cooling.
70%
Dehumidification mode be-
gins when humidity is greater
70%
than set point
ComfortSense
thermostat will keep outdoor
unit energized after cooling
temperature
setpoint
70%
been reached in order to
maintain
room
setpoint.
Note: Allow to over cool 2
from cooling set point.
ComfortSense 7000 thermo-
100%
stat energizes Y2 and de−en-
ergizes D on a call for
dehumidification
70%
Note: No over cooling.
100%
Dehumidification mode be-
gins when humidity is greater
70%
than set point
ComfortSense
thermostat will keep outdoor
70%
unit energized after cooling
temperature
setpoint
been reached in order to
maintain
room
setpoint.
Note: Allow to over cool 2
from cooling set point.
CBX40UHV
7000
has
humidity
0
F
7000
has
humidity
0
F
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