Install Sheet

14
Thermostat Specifications
Operating Voltage 18-30V AC
Maximum Load Current 1 Amp Max per Output Terminal
4 Amp Total Load
Output Type Latching Relays
Batteries 2 AA Alkaline in Series
Battery Life 2 Years Typical
Ambient Operating Temperature 14 °F (-10 °C) to 122 °F (50 °C)
Storage Temperature -4 °F (-20 °C) to 140 °F (60 °C)
Operational Mode Chart:
Demand
Conventional
(Non-HP)
Heat Pump
(HP) Elec
Heat Pump
(HP) Gas
First Stage Heat W1 + G* Y1 + G + B Y1 + G + B
Second Stage Heat W1 + W2 + G*
Y1 + Y2 + G + B
or
Y1 + W2 + G + B
Y1 + Y2 + G + B
or
Y1 + W2 + G + B
Third Stage Heat N/A
Y1 + Y2 + E +
G + B
or
Y1 + W2 + E +
G + B
E + B
Emergency Heat N/A Y1 + G + O Y1 + G + O
First Stage Cool Y1 + G Y1 + Y2 + G + O Y1 + Y2 + G + O
Second Stage Cool Y1 + Y2 + G E + G E
* G: G is off for Gas, on for Elec