(4) SET THE CONFIGURATION DIP SWITCHES ON THE THERMOSTAT CIRCUIT BOARD
MULTI or SINGLE – When set to single, the second stage outputs (Y2 and W2) do not energize.
GAS or ELECT – When set to ELECT, the fan terminal (G) will be energized on a call for heat.
There are four dip switches located on the back of the thermostat (on the circuit board) that must be set to properly configure the thermostat for operation with the equipment it is to control. Figure 5 shows the default position for the four switches.
|
| Figure 5 |
SINGLE | ON | MULTI |
HP |
| HC |
ELECT |
| GAS |
•Set to SINGLE for
•Set to MULTI if the furnace or air conditioner is
HEAT/COOL or HEAT PUMP – When set to HP the compressor terminal (Y1) is the first stage output for both heating and cooling.
•Set to HP when installed with heat pumps.
•Set to H/C when installed with furnace/AC systems, roof top units or boiler/AC combination systems.
•Set to ELECT when the heat source is electric (such as strip heat).
•Set to GAS when the heat source is fossil fuel (oil, propane, natural gas). For heat pumps, the compressor terminal(s) will
O or B – For heat pumps only, this switch sets whether the O/B reversing valve output is energized during a cooling call or heating call.
•Set to O if heat pump reversing valve is to be energized in cooling.
•Set to B if heat pump reversing valve is to be energized in heating.
O | B |
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STOP! If installing this thermostat as part of a Model 6504 Intelligent Zoned Comfort System, refer to the Model 6504 Installation Manual for wiring and checkout procedures. Continue Model 6504 installation with Step 11 (page 36).
If wiring this thermostat directly to the HVAC equipment or standard zone control panel, continue with Step 5.
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