nace control CPU will drop the blower speed back to HI HEAT speed. This alternating
c.Cooling
5.Continuous Blower Mode
When the
When the thermostat “calls for
When the thermostat “calls for
When the
Continuous Blower Speed Selection from Thermostat To select different
NOTE: If the
6.Heat Pump
(See Fig. 27 through 30 for thermostat connections) When installed with a heat pump, the furnace control auto- matically changes the timing sequence to avoid long blower off times during demand defrost cycles. When the
When the
blower switches to COOL speed after a 3 second delay. If the
Step 4 — Wiring Diagrams
Refer to wiring diagram, Fig. 57.
Step 5 — Troubleshooting
Refer to the service label. (See Fig.
The Guide will help to identify the problem or failed component. After replacing any component, verify correct operation sequence.
58CT
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