Honeywell T834C Installation Instructions Manual

APPLICATION
The T834C, T8034C Heating-Cooling Triple Fuel Thermo-
stats, see Fig. 1, control 24 to 30 Vac single-stage heating-
cooling systems. The adjustable heat anticipator setting
range of 0.15A to 1.2A and the two jumpers included make
Model Application
T834C
For use in gas or oil-fired,
heat pump or central
electric heat systems.
T8034C
a
In electric heat applications without fan sequencers, jumper terminals 1 and 2 to control the fan from the thermostat
during heating.
b
Two jumpers included.
T834C
FAN
SWITCH
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Copyright © 2002 Honeywell •
T834C,T8034C Heating-Cooling
Table 1. Thermostat Models and Specifications.
Mounting
vertically
a,b
horizontally
MOUNTING HOLE
(THERMOSTAT
TO WALL OR
OUTLET BOX)
MERCURY BULB
BIMETAL ELEMENT
BEHIND SCALE
ADJUSTABLE HEAT
ANTICIPATOR
INDICATOR
SYSTEM
SWITCH
MOUNTING HOLE
TEMPERATURE
SETTING LEVER
Fig. 1. Internal view of T834C and T8034C.
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Triple Fuel Thermostats
the T834C and T8034C Thermostats applicable to almost
all single-stage heating applications. See Table 1 for
specific models and applications. An spdt mercury switch
makes R to W on a temperature fall for heating, and R to Y
on a temperature rise for cooling.
Heat
Anticipation
System
0.15A to 1.2A HEAT-OFF-COOL
BIMETAL ELEMENT
BEHIND HEAT
MOUNTING HOLE
ANTICIPATOR
(THERMOSTAT
SCALE
TO WALL OR
OUTLET BOX)
ADJUSTABLE HEAT
ANTICIPATOR INDICATOR
X-XX UL
INSTALLATION INSTRUCTIONS
Switching
Fan
AUTO-ON
T8034C
MERCURY
SYSTEM
BULB
SWITCH
.18
.9
.2
.7
.5
.25
.35
.3
FAN
TEMPERATURE
SWITCH
SETTING LEVER
Figure
Reference
3, 4
MOUNTING
HOLE
M11340
69-1628