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I-UNIT COMPONENTS
ELECTROSTATIC DISCHARGE (ESD)
Precautions and Procedures
CAUTION
electronic components. Take precautions
to neutralize electrostatic charge by
touching your hand and tools to metal
prior to handling the control.
pressor compartment.
1-Disconnect Switch S48
All units may be equipped with an optional disconnect
switch S48 or circuit breaker CB10. S48 and CB10 are
cian to disconnect power to the unit.
2-Control Transformer T1
BLUE YELLOW
ORANGE
RED
BLACK
230 VOLTS
208 VOLTS
PRIMARY
SECONDARY
208/230V TRANSFORMER
FIGURE 3
3-Terminal Strip TB1
All indoor thermostat connections are made at terminal
place.
4-Condenser Fan Capacitors C1 & C2
5-Compressor Contactor K1 & K2
K2 energize compressors B1 and B2 in response to
CONTACTOR
FIGURE 4
6-Blower Contactor K3
the indoor blower motor B3 in response to blower de
mand. K3 is energized by a thermostat cooling demand.
7-Condenser Fan Relay K10
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