Lennox G61MPV Series - Page 49

TABLE 28
OPERATING SEQUENCE
G61MPV, SignatureStat '" Thermostat and Single-Stage Outdoor Unit
OPERATING T
SEQUENCE. SYSTEM DEMAND. SYS Eu RESPONSE
Thermostat Demand Relative Humidity
System Step
Condition I°I lWl Status io
NO CALL FOR DEHUMIDIFICATION
Compressor
Blower
CFM
(COOL)
Comments
Normal Operation 1 On On On Acceptable
BASIC MODE (only active on a Y1 thermostat demand)
Normal Operation 1 On On On Acceptable
Dehumidification
Call 2 On On On Demand
24
VAC High
24
VAC High
0
VAC High
100%
100%
70%
Compressor and indoor
blower follow thermostat
demand
SignatureStat" thermo-
stat energizes Y1 and de-
energizes D on a call for
de-humidification
PRECISION MODE (operates independent of a Y1 thermostat demand)
24
Normal Operation 1 On On On Acceptable VAC
Dehumidification
call
Dehumidification
call ONLY
High
0
2 On On On Demand VAC High
0
1 On On On Demand VAC High
Jumpers at indoor unit with a single stage outdoor unit
With Condensing unit - Cut W914 (R to DS) on SureLight ® board
With Heat Pump - Cut W914 (R to DS) & W951 (R to O) on SureLight ¢ board
100%
70%
70%
Dehumidification mode
begins when humidity is
greater than set point
SignatureStat T" thermo-
stat will keep outdoor unit
energized after cooling
temperature setpoint has
been reached in order to
maintain room humidity
setpoint.*
*in Precision mode, SignatureStat "' thermostat will allow room temperatures up to 2 °F (1.2°C) cooler than room setting.
Page 49