: Advanced Installation and Configuration Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
15
Installation Settings > Thresholds > Reverse Staging
A200479
The Compressor Staging and Heat Staging settings work the same.
If Reverse Staging is enabled, then the installer must configure values for Stage 2 delta, which is the space temperature deviation required to engage
second stage. It is recommended that a Stage 2 Delta of TWO degrees be used when stage 1 was previously set for the standard half degree. This will
allow the maximum runtime with just stage 1 operational which will minimize electrical usage and maximize dehumidification. Standard staging
should be selected for geothermal systems.
Standard Staging example: If there is a 74 degree cooling setpoint the 1st stage of cooling will energize when the room temperature climbs to 74.5
degrees. Then, if the temperature continues to climb to 76 degrees, the 2nd stage will come on. Then both will run together until the room temperature
is satisfied at 74.
Reverse staging works example: If there is a 74 degree cooling setpoint the 1st stage of cooling will energize when we reach 74.5 degrees. Then, if the
temperature continues to climb to 76 degrees, the 2nd stage will come on. Instead of both stages running to finish the cycle together, stage 2 will
de-energize when the room temperature gets back down to 74.5 degrees. Stage 1 then finishes on its own until the room temperature is satisfied at 74.
This helps get a longer total run cycle. If the space temperature continues to climb to 76 degrees, then stage 2 could be re-energized if needed.
Installation Settings > Thresholds > Heat Pump Optimization
A200480
There are lot of settings related to heat pump optimization located in different areas of the thermostat setup. To be energy efficient, a big goal is to
minimize the use of auxiliary electric resistance heat. As shown in the table above, a heat pump is often 2 to 3 times more efficient that electric heat,
and since both use electricity at the same price, electric heat should only be used when it has to be used.
