Lennox CBX32MV User Manual

Page 27
CBX32MV SERIES
Table 14. 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%
ComfortSenset 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%
ComfortSenset 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%
ComfortSenset 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%
ComfortSenset 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.

Lennox CBX32MV Specifications

General

Refrigerant	R-410A
Efficiency	High efficiency
Model Number	CBX32MV
Category	Air Handlers
Motor Type	ECM
Voltage	208/230V
Blower Motor	Variable Speed
Cabinet	Painted Steel
Nominal Cooling Capacity	2 to 5 tons
Nominal Airflow	Up to 2000 CFM
Filter Type	Standard
Heating Options	Electric Heat
Cooling Options	Compatible with Lennox air conditioners
Sound Level	Quiet operation