Cbx32Mv With Comfortsenset 7000 Thermostat - Lennox CBX32MV-018/024 Manual

Cbx32mv series
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This section details unit operating sequence for non-communicating systems.
NOTE - For communicating systems, see the iComfortt thermostat installation instruction.
Table 14. CBX32MV with ComfortSenset 7000 Thermostat and Single-Stage Outdoor Unit Operating Sequence
Operating Sequence
System
Step
Condition
Normal Operation
1
Normal Operation
1
Dehumidification
2
Call
Normal Operation
1
Dehumidification
2
call
Dehumidification
1
call ONLY
Table 15. CBX32MV with ComfortSenset 7000 Thermostat and Two‐Stage Outdoor Unit Operating Sequence
Operating Sequence
System
Condition
Step
Normal Operation
1
- Y1
Normal Operation
2
- Y2
BASIC MODE (Only active on a Y1 thermostat demand)
Normal Operation
1
Dehumidification
2
Call
PRECISION MODE (Operates independent of a Y1 thermostat demand)
Normal Operation
1
Dehumidification
2
call
Dehumidification
1
call ONLY
System Demand
Thermostat Demand
Y1
Y2
O
G
W1
W2
NO CALL FOR DEHUMIDIFICATION
On
On
On
BASIC MODE (Only active on a Y1 thermostat demand)
On
On
On
On
On
On
PRECISION MODE (Operates independent of a Y1 thermostat demand)
On
On
On
On
On
On
On
On
On
System Demand
Thermostat Demand
Y1
Y2
O
G
W1
W2
No Call for Dehumidification
On
On
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
On
On
On
On
On
Relative Humidity
Comp
Status
D
Acceptable
24 VAC
Acceptable
24 VAC
Demand
0 VAC
Acceptable
24 VAC
Demand
0 VAC
Demand
0 VAC
System Response
Relative Humidity
Compre
Status
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
Page 49
System Response
Air
Handler
Comments
CFM
(COOL)
Compressor and indoor
High
100%
air
handler
thermostat demand
ComfortSenset
High
100%
thermostat energizes Y1
and de-energizes D on a
call for dehumidification.
High
70%
NOTE - No over cooling.
High
100%
Dehumidification
begins when humidity is
High
70%
greater than set point
ComfortSenset 7000 will
keep
High
70%
energized after cooling
temperature setpoint has
been reach in order to
maintain room humidity
setpoint.
NOTE - Allow to over
0
cool 2
F from cooling set
point.
Air
Handler
CFM
(COOL)
Comments
70%
Compressor and indoor air
handler follow thermostat
demand
100%
ComfortSenset 7000 ther­
70%
mostat energizes Y2 and de-
energizes D on a call for
dehumidification
70%
NOTE - No over cooling.
70%
Dehumidification mode be­
gins when humidity is greater
70%
than set point
ComfortSenset 7000
thermostat will keep outdoor
unit energized after cooling
temperature setpoint has
been reached in order to
70%
maintain room humidity
setpoint.
NOTE — Allow to over cool
0
2
F from cooling set point.
follow
7000
mode
outdoor
unit
CBX32MV

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