Lennox KGB060S4D User Manual

Page 72
KGB-074 Two-Stage Units
1. First-stage cooling demand Y1 and G is ener
gized by the thermostat. G energizes blower.
2. Relay K239 directs voltage through relay K250 to
energize contactor K3.
3. Blower contactor K3 energizes blower B3 on low
speed.
4. Second-stage cooling demand Y2 energizes
relay K250 to redirect voltage to contactor K37
5. Contactor K37 energizes blower B3 on high
speed.
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Lennox KGB060S4D Specifications

General

Series	KGB
Tonnage	5
Cooling Capacity (BTU/h)	60000
Heating Capacity (BTU/h)	60000
SEER Rating	14
HSPF Rating	8.2
Refrigerant Type	R-410A
Voltage (V)	208/230
Phase	1