Lennox International Inc 090V60C, 070V36B, 090V36C, 110V60C Table Cooling Operating Sequence, Page

Models: 090V60C 110V60C 090V36C 070V36B DAVE LENNOX SIGNATURE COLLECTION GAS FURNACE DOWNFLOW AIR DISCHARGE

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TABLE 24

TABLE 24

COOLING OPERATING SEQUENCE

SLP98DFV and Single−Stage Outdoor Unit

OPERATING

 

 

 

SYSTEM DEMAND

 

 

SYSTEM RESPONSE

SEQUENCE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Demand

Relative Humidity

 

Blower

 

System

 

 

 

 

 

 

 

 

 

Step

1st

 

 

 

 

 

Compressor

CFM

Comments

Condition

 

O

G

Status

D*

 

stage

 

(COOL)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO CALL FOR DEHUMIDIFICATION

Normal Operation

1

On

On On

Acceptable

24

VAC

High

100%

Compressor and indoor blower follow thermostat demand

BASIC MODE (only active on a Y1 thermostat demand)

Normal Operation

1

On

On

On

Acceptable

24

High

100%

VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dehumidification

2

On

On

On

Demand

0

High

70%

Call

VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermostat energizes Y1 and de−energizes D on a call for de−humidification

PRECISION MODE (operates independent of a Y1 thermostat demand)

Normal Operation

1

On

On

On

Acceptable

24

High

100%

VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dehumidification

2

On

On

On

Demand

0

High

70%

call

VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dehumidification mode begins when humidity is greater than set point

Dehumidification

1

On

On

On

Demand

0

High

70%

call ONLY

VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

On−board links at indoor unit with a single−stage outdoor unit: With Condensing unit − Cut W914 (R to DS) on SureLight® control; With Heat Pump − Cut W914 (R to DS) & W951 (R to O) on SureLight® control.

*ComfortSense® 7000 thermostat ony

Thermostat will keep out- door unit energized after cooling temperature set- point has been reached in order to maintain room humidity setpoint.

Page 43

Page 43
Image 43
Lennox International Inc 090V60C, 070V36B Table Cooling Operating Sequence, SLP98DFV and Single−Stage Outdoor Unit, Page