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Prostat OEM Series User Manual

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75 Manual & Installer Guide
D. If you have a heat pump without aux heat, the ProStat+ model will require 5
wires: R (24Vac), C (24Vac), W1/O/B (Reversing Value), Y (1
st
Stage Compressor),
and G (Fan).
If you are short 1 wire, there are at least 3 options available to connect the
ProStat+ thermostat:
1. Use the available wires as instructed in the“Making 4 Wires
Work When 5 Wires Are Required” section on page 76 and note
that the fan will only operate with a Heating or Cooling demand.
2. Pull new thermostat wire from the HVAC equipment to the
thermostat so that there are at least 5 wires available.
3. Purchase and install a ProStat+ Add-A-Wire accessory.
E. If you have a heat pump with aux heat, the ProStat+ model will require 6 wires:
R (24Vac), C (24Vac), W1/O/B (Reversing Value), Y (1
st
Stage Compressor),
W2 (Aux Heat), and G (Fan).
If you are short 1 wire, there are at least 3 options available to connect the
ProStat+ thermostat:
1. Use the available wires as instructed in the“Making 5 Wires
Work When 6 Wires Are Required” section on page 77 and note
that the fan will only operate with a Heating or Cooling demand.
2. Pull new thermostat wire from the HVAC equipment to the
thermostat so that there are at least 6 wires available.
3. Purchase and install a ProStat+ Add-A-Wire accessory.
Installation Instructions – Wire Connections

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Prostat OEM Series Specifications

General IconGeneral
BrandProstat
ModelOEM Series
CategoryThermostat
LanguageEnglish

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