THIS PROCEDURE MUST BE PERFORMED BY A QUALIFIED TECHNICIAN.
A low voltage (24 VAC) room thermostat is required for room temperature control with Serenity. Steffes recommends using a digital thermostat. If utilizing a mechanical thermostat, a load resistor may be necessary due to the low current draw (.01 amps) on the heat call input circuit of Serenity.
STAND ALONE FURNACE APPLICATION WITH VARIABLE SPEED BLOWER CONNECTIONS SHOWN FOR SINGLE STAGE HEATING / SINGLE STAGE COOLING (UNCONTROLLED AIR CONDITIONING)
Figure 23
SINGLE STAGE HEAT PUMP APPLICATION WITH VARIABLE SPEED BLOWER
Figure 24
* If multiple inputs are active, system will display highest Heat Call values.
** Thermostat must be programmed to energize reversing valve for cooling. If outdoor unit used requires the reversing valve be energized for heating, see Configuration Menu.
TWO-STAGE HEAT PUMP APPLICATION
Figure 25
* If multiple inputs are active, system will display highest Heat Call values.
** Thermostat must be programmed to energize reversing valve for cooling. If outdoor unit used requires the reversing valve be energized for heating, see Configuration Menu.