Lennox GCS16-953

Page 60
All wiring connections are made by jackplug connec
tions to the commercial controls harness in the unit.
Plug P8 in the warm up kit connects to Jack J3 in the
unit to make this connection. Jack J8 in the warm up
kit connects to Plug P4 in the economizer. Thermo
stat wiring connections are made to the unit low volt
age terminal strip.
Some of the following optional thermostat control
systems have built-in warm up capabilities and the
warm up kit (figure 69) cannot be added due to wiring
incompatibility.
The warm-up kit is an option to the REMD16M econo
mizer. The warm-up kit may be applied to any econo
mizer (except units using W7400 control system or
T7300 control system). If W973 control system is be
ing used, CMC3-1 time clock must also be used. If
electromechanical control system is being used,
CMC3-1 time clock and night thermostat must be
used.
WARM UP KIT
FIGURE 69
J8
P8
FIGURE 70
J3P8
J8P4
TO ECONOMIZER
WARM UP KIT
SEE C2-1 WIRING DIAGRAM
IN 16 SERIES OPTIONAL CONTROLS MANUAL
ECONOMIZER
ENTHALPY CONTROL
WARM UP KIT RELAY KIT INSTALLATION
12.5 TON AND SMALLER UNITS
FIGURE 71
J24
J3
J33
P8
J8 P4
TO ECONOMIZER
J9 P9
WARM UP KIT
SEE C2-1 WIRING DIAGRAM
IN 16 SERIES OPTIONAL CONTROLS MANUAL
ECONOMIZER
ENTHALPY CONTROL
WARM UP KIT RELAY KIT INSTALLATION
15 TON AND LARGER UNITS