Installer Setup
Lockout Heat Pump on Outdoor Temp (setup steps 56-57)
This feature stops the heat pump from running below a specified outdoor
temperature, where the heat pump has become inefficient or could damage
equipment. A local outdoor sensor must be used for this feature to work.
Lockout Heat Pump With Outdoor Temp (setup step 56) - When set to ON, the
Heat Pump Lockout feature is enabled. When set to OFF, the heat pump will
stage normally.
Heat Pump Lockout Temp (setup step 57) - This step allows the user to set the
temperature at which the heat pump will be locked out. Adjustable from 0 to
75 degrees Fahrenheit in five degree increments.
Auxiliary Heat Lockout (setup steps 58 - 59)
This feature allows the auxiliary heat for a heat pump (W2 and W3) to be
locked out above a specific outdoor temperature. These steps will only appear
if the thermostat jumper J1 is set for Heat Pump and J3 is set for Electric Heat.
A local outdoor sensor must be used for this feature to work.
Lockout Aux Heat With Outdoor Temp
(Setup Step 58) - When set to ON, the Aux Heat Lockout feature is enabled.
When set to OFF, Auxiliary Heat will stage normally.
Aux Heat Lockout Temp (Setup Step 59) - (20˚ - 75˚ ) This step allows the user to
set the temperature at which Auxiliary Heat will be locked out. Adjustable from
20 to 75 degrees Fahrenheit. NOTE: This temperature setting cannot be lower
than 5 degrees above the Heat Pump Lockout temperature.
Dual Fuel (setup steps 60 - 63)
This feature is for heat pump applications only. Steps 56 - 59 will only appear if
the thermostat jumper is set J1 for Heat Pump and J3 is set for Gas Heat.
Dual Fuel (Setup Step 60) - On - Tells the thermostat an outdoor temperature or
a demand for third stage heat will be used to stop running the heat pump and
only run a fossil fuel source of heat. NOTE: Once the change to fossil fuel is
made, the heat demand must finish with fossil fuel. Additional heat demands
within 10 minutes will also use fossil fuel, regardless of outdoor temperature.
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