Owner's Manual
Page 1
... experienced technician Read these instructions can damage the product or cause a hazardous condition. Patents pending. Pre-installation checklist Check package contents: • Thermostat • Wall anchors & screws (2 each) Before you begin, make sure you have: • No. 2 Phillips & small pocket screwdrivers... that contains mercury in a sealed tube, do not place the old control in the trash. Copyright © 2008 Honeywell International Inc. Failure to follow these instructions carefully. CAUTION: ELECTRICAL HAZARD Can cause electrical shock or equipment damage. Owner's...
... experienced technician Read these instructions can damage the product or cause a hazardous condition. Patents pending. Pre-installation checklist Check package contents: • Thermostat • Wall anchors & screws (2 each) Before you begin, make sure you have: • No. 2 Phillips & small pocket screwdrivers... that contains mercury in a sealed tube, do not place the old control in the trash. Copyright © 2008 Honeywell International Inc. Failure to follow these instructions carefully. CAUTION: ELECTRICAL HAZARD Can cause electrical shock or equipment damage. Owner's...
Owner's Manual
Page 2
T822/T827 Series • Owner's Manual Product application This thermostat provides control of: • 24 Vac heating systems (T822K) • 750 mV or 12 Vdc heating systems (T827K) • 24 Vac cooling systems (T822L) System ...
T822/T827 Series • Owner's Manual Product application This thermostat provides control of: • 24 Vac heating systems (T822K) • 750 mV or 12 Vdc heating systems (T827K) • 24 Vac cooling systems (T822L) System ...
Owner's Manual
Page 3
Pull wires through wire hole. Connect to prevent drafts from affecting thermostat operation. Pull wires through base, position over anchors, and insert screws. Drill holes (3/16" holes for drywall, 7/32" holes for plaster), then tap in ...opening with nonflammable insulation to secondary side of heating system transformer. G Fan relay (select models only) 1 T822K and T827K 2 T822L Wire specifications Use 18-gauge thermostat wire. Shielded cable is not required. Position base on wall, level and mark hole positions. 2. Y2 Cool relay, or normally open hot water valve. Wiring...
Pull wires through wire hole. Connect to prevent drafts from affecting thermostat operation. Pull wires through base, position over anchors, and insert screws. Drill holes (3/16" holes for drywall, 7/32" holes for plaster), then tap in ...opening with nonflammable insulation to secondary side of heating system transformer. G Fan relay (select models only) 1 T822K and T827K 2 T822L Wire specifications Use 18-gauge thermostat wire. Shielded cable is not required. Position base on wall, level and mark hole positions. 2. Y2 Cool relay, or normally open hot water valve. Wiring...
Owner's Manual
Page 4
Your system Steam Hot water heat Warm air (high efficiency) Warm air (standard) Electric heat Setting 1.2 0.8 0.8 0.4 0.3 M27307 Thermostat mounting Align the slots on the cover with tabs on the sides of the base, then push gently until the cover snaps into place. T822/T827 Series • Owner's Manual Set heat anticipator (model T822K only) Move the adjustment arrow to the proper setting for your system (see table below). Tab M27308 69-2251EFS-01 4
Your system Steam Hot water heat Warm air (high efficiency) Warm air (standard) Electric heat Setting 1.2 0.8 0.8 0.4 0.3 M27307 Thermostat mounting Align the slots on the cover with tabs on the sides of the base, then push gently until the cover snaps into place. T822/T827 Series • Owner's Manual Set heat anticipator (model T822K only) Move the adjustment arrow to the proper setting for your system (see table below). Tab M27308 69-2251EFS-01 4