Lennox SLP98UHV Installation Instructions Manual page 47
Collection gas furnace upflow / horizontal air discharge
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Also See for SLP98UHV:
- Unit information (70 pages) ,
- Installation instructions manual (67 pages) ,
- User manual (41 pages)
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OPERATING
SEQUENCE
System
Step
Condition
NO CALL FOR DEHUMIDIFICATION
Normal Operation −
1
Y1
Normal Operation −
2
Y2
ROOM THERMOSTAT CALLS FOR FIRST STAGE COOLING
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
ROOM THERMOSTAT CALLS FOR FIRST AND SECOND STAGE COOLING
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
On−board links at indoor unit with a two−stage outdoor unit:
Cut factory link from Y1 to Y2 or cut W915 (Y1 to Y2) on SureLight
grated control.
With Condensing unit − Cut W914 (R to DS) on SureLight
With Heat Pump − Cut W914 (R to DS) & W951 (R to O) on SureLight
integrated control.
*ComfortSense
COOLING OPERATING SEQUENCE
SLP98UHV and Two−Stage Outdoor Unit
SYSTEM DEMAND
Demand
1st
2nd
O
G
stage
stage
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On
®
7000 thermostat only
TABLE 23
Relative Humidity
Compressor
Status
D*
24
Acceptable
Low
VAC
24
Acceptable
High
VAC
24
Acceptable
Low
VAC
0
Demand
High
VAC
24
Acceptable
Low
VAC
0
Demand
High
VAC
0
Demand
High
VAC
24
Acceptable
High
VAC
0
Demand
High
VAC
24
Acceptable
Low
VAC
0
Demand
High
VAC
0
Demand
High
VAC
®
integrated control;
Page 47
SYSTEM RESPONSE
Blower
Comments
CFM
(COOL)
70%
Compressor and indoor
blower follow thermostat
demand
100%
Thermostat energizes
70%
2nd stage and de−ener-
gizes D on a call for de−
70%
humidification
70%
Dehumidification mode
begins when humidity is
greater than set point
70%
Thermostat will keep out-
door unit energized after
cooling temperature set-
70%
point has been reached
in order to maintain room
humidity setpoint.*
Thermostat energizes
100%
2nd stage and de−ener-
gizes D on a call for de−
70%
humidification
70%
Dehumidification mode
begins when humidity is
greater than set point
70%
70%
Thermostat will keep out-
door unit energized after
®
cooling temperature set-
inte-
point has been reached
in order to maintain room
®
humidity setpoint.
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