
This manual covers the following models*:
T822K,L and T827K
*Images are for reference only and may not represent the actual thermostat. Series Owner’s Manual
Check package contents:
- Thermostat
- Wall anchors & screws (2 each)
Before you begin, make sure you have:
- No. 2 Phillips & small pocket screwdrivers
- Hammer
- Level (optional)
- Pencil
- Drill and bit (3/16” for drywall, 7/32” for plaster)
Must be installed by a trained, experienced technician Read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition.
This thermostat provides control of:
- 24 Vac heating systems (T822K)
- 750 mV or 12 Vdc heating systems (T827K)
- 24 Vac cooling systems (T822L)
System Types
- Gas or oil
- Warm air, hot water, high-efficiency furnaces, heat pumps, steam, gravity
- Normally closed hot water valves (T822K)
- 2-wire cooling systems (T822L)
- Normally open hot water valves (T822L)
System Settings
- Heat, Off (select models only)
Fan Settings
- Auto, On (select models only)
Specifications
Temperature Control Range
- 45° to 95°F (7° to 35°C)
- 35° to 85°F (2° to 29°C)*
Operating Ambient Temperature
- 0° to 120°F (-18° to 49°C)
Operating Relative Humidity
- 5% to 90% (non-condensing)
Dimensions (vertical model)
- 2.88W x 4.75H x 1.5D (inches)
- 73W x 121H x 38D (mm)
Dimensions (horizontal model)
- 4.75W x 2.88H x 1.5D (inches)
- 121W x73H x 38D (mm)