IM 1287-6 • REBEL APPLIED ROOFTOP 136 www.DaikinApplied.com
Electric Furnace Sequence of Operation
The electric heater should be activated as the rst source
of heat and modulate to maintain the heating discharge air
temperature setpoint (for heating) or the cooling discharge
air temperature setpoint setpoint (for minimum discharge air
temperatures). If the electric heater reaches 100% capacity
and cannot meet the discharge air setpoint, the electric heater
is shut o and the gas furnace is brought on at minimum re.
The electric heater continues to run at 100% until the furnace
command has been given for 60 seconds. If the gas furnace
reaches minimum re for a heating stage timer and over shoots
the heating discharge air temperature setpoint, the gas furnace
is shut o and the electric heater is activated and modulated to
maintain the discharge air temperature setpoint.
Figure 196: Electric 200 MBH, 100:1
Figure 197: Electric 400 and 600 MBH, 100:1
Figure 198: Electric 600 MBH Dual and 800 MBH, 100:1
Figure 199: Electric 1125 MBH, 100:1
Figure 200: Electric 1500 MBH, 100:1
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