Lennox SLP99UH070XV36B - OPERATING SEQUENCE; NO CALL FOR DEHUMIDIFICATION; BASIC MODE (only active on a Y1 thermostat demand); PRECISION MODE (operates independent of a Y1 thermostat demand)

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TABLE 15
OPERATING SEQUENCE
SLP99UHV and Single-Stage Outdoor Unit
OPERATING
SEQUENCE
SYSTEM DEMAND SYSTEM RESPONSE
System
Condition
Step
Demand Relative Humidity
Compressor
Blower
CFM
(COOL)
Comments
1st
stage
O G Status D*
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
VAC
High 100%
Thermostat energizes Y1
and de-energizes D on a
call for de-humidification
Dehumidification
Call
2 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
High 100%
Dehumidification mode
begins when humidity is
greater than set point
Dehumidification
call
2 On On On Demand
0
VAC
High 70%
Dehumidification
call ONLY
1 On On On Demand
0
VAC
High 70%
Thermostat will keep out
door unit energized after
cooling temperature set
point has been reached in
order to maintain room
humidity setpoint.
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 only