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Copyright © 2001 Honeywell • • All Rights Reserved
INSTALLATION INSTRUCTIONS
69-1596
T8034C Heating and
Cooling Thermostat
APPLICATION
The T8034C Thermostat (see Fig. 1) controls 24 to 30 Vac single-stage heating-cooling systems. See Table 1 for
application information. An spdt mercury switch makes R to W on a temperature fall for heating, and R to Y on a
temperature rise for cooling.
Fig. 1. T8034C internal view.
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. Dispose of properly.
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of an old control.
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 the product
operation as provided in these instructions.
Table 1. T8034C Specifications.
Model No. Application
Heat
Anticipation
Switching
Comments
See Fig.
No.System Fan
T8034C1085 For use in gas- or
oil-fired heating
systems.
0.18A to 1.0A,
adjustable.
Heat-Off-
Cool
On-Auto TRADELINE® 3
MOUNTING HOLE
(THERMOSTAT
TO WALL OR
OUTLET BOX)
BIMETAL ELEMENT
BEHIND HEAT
ANTICIPATOR
SCALE
SYSTEM
SWITCH
MOUNTING
HOLE
TEMPERATURE
SETTING LEVER
FAN
SWITCH
M5601
ADJUSTABLE HEAT
ANTICIPATOR INDICATOR
.25
.3
.35
.5
.7
.9
.2
.18
L
O
N
G