Sequence Of Operations - Lennox CBX32MV-018/024 Manual

Sequence of Operations

A CBX32MV - 208/230V SINGLE PHASE
1. Line voltage is routed to transformer T1 and blower motor B3.
2. T1 supplies 24VAC to terminal strip TB2, which supplies 24VAC to the indoor thermostat and electric heat, if used.
HEATING
1. W1 of the thermostat provides a W1 demand to the Control. The Control outputs a 22VDC signal to the K32 relay contained
in the ECB40 heat section. (See electric heat diagrams for operation).
2. Control energizes blower motor B3 on heating speed.
COOLING
1. See Table 13 for cooling sequence of operation.
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CBX32MV