Honeywell T812C1000 Installation Instructions
® U.S. Registered Trademark
Copyright © 2004 Honeywell International Inc. •
• All Rights Reserved
INSTALLATION INSTRUCTIONS
69-1606ESF-3
T812, TS812 Thermostats
APPLICATION
The T812 and TS812 Thermostats are low voltage,
controls for heat only, cool only or heating and cooling
systems. See Table 1.
MERCURY NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash.
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of the old thermostat.
INSTALLATION
When Installing this Product...
1.
Read these instructions carefully. Failure to follow
them could damage the product or cause a hazard-
ous condition.
2.
Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
3.
Installer must be a trained, experienced service
technician.
4.
After installation is complete, check out product
operation as provided in these Instructions.
CAUTION
Electrical Shock Hazard.
Can cause personal injury or equipment
damage.
Disconnect power supply before beginning
installation.
Location
Locate the thermostat about 5 ft (1.5m) above the floor in
an area with good air circulation at average temperature.
Do not mount the thermostat where it can be affected by:
— drafts, or dead spots behind doors and in corners.
— hot or cold air from ducts.
— radiant heat from the sun or appliances.
— concealed pipes and chimneys.
— unheated (uncooled) area such as outside wall behind
the thermostat.
Table 1. Model Descriptions.
Model
Voltage
System
Anticipator
T812A
24 Vac
Heat only
Adjustable
.18A to 1.2A @
30 Vac
T812B
12 Vdc
Heat only
.18A to 1.2A @
12 Vdc
T812C
24 Vac
Heat and
Cool
Adjustable
.18A to 1.2A @
30 Vac
T812D
24 Vac
Cool only
Fixed 24 Vac to
30 Vac
TS812A
750 mV
Heat only
.1A @ .75 Vdc
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