4 49-5000637 Rev. 0
Specifications.
WARNING
FIRE AND SHOCK HAZARD
• Always turn off power at the main power supply
before installing, cleaning or removing the
thermostat. Failure to do so could result in
electrical shock hazard.
• Do not use on voltages over 30 VAC. Higher
voltages will damage the thermostat and could cause
shock or fire hazard.
NOTICE
• All wiring must conform to local and national
electrical and building codes.
• Use this thermostat only as described in this manual.
Electrical rating: • 24 VAC (18–30 VAC)
• 1 amp maximum per terminal
• 4 amp maximum total load
Operating temperature range: 40°F–99°F (4°C–37°C)
System Configurations:
* 1 stage cool, 2 stage heat (heat pump/resistance heat)
1 stage cool, 1 stage heat (resistance heat)
Terminations: *R, C, W, Y, GH, GL, B for 2-stage heat
R, C, W, Y, GH, GL, for 1-stage heat
Wiring (for R & C if wiring for power): Maximum wiring
length is 66ft (20 meters) for AWG18
Maximum wiring length is 60ft (18 meters) for AWG20
*Default setting
IMPORTANT SAFETY INFORMATION
READ ALL INSTRUCTIONS BEFORE USING
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