Honeywell T8034C user manual

Summary of the content on the page No. 1

L
O
T8034C Heating and
Cooling Thermostat
INSTALLATION INSTRUCTIONS
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.
Table 1. T8034C Specifications.
Switching
Heat See Fig.
Model No. Application Anticipation System Fan Comments No.
T8034C1085 For use in gas- or 0.18A to 1.0A, Heat

Summary of the content on the page No. 2

T8034C HEATING AND COOLING THERMOSTAT plastered into the wall, make a hole next to the Location wires and loosen the wires so they can be pushed Locate the thermostat about 5 ft (1.5m) above the floor back into the wall later. on an inside wall in an area with good air circulation at 2. In new installations, run wiring (if necessary) to the average temperature. thermostat location. 3. Connect the wires to the terminals on the back of Do not mount the thermostat where it can be affected by:

Summary of the content on the page No. 3

T8034C HEATING AND COOLING THERMOSTAT L1 RC (HOT) FAN SWITCH L2 FAN RELAY H1 ON C1 1 G TEMP. FALL AUTO H1 ANTICIPATOR Y COOL RELAY 2 C1 ANTICIPATOR SYSTEM SWITCH RH COOL HEAT OFF OFF 1 L1 HEAT COOL HEAT RELAY (HOT) 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND W L2 OVERLOAD PROTECTION AS REQUIRED. M2043C 2 IN SINGLE TRANSFORMER SYSTEMS, JUMP RC AND RH. Fig. 3. Internal schematic and typical hookup for T8034C1085 in dual-transformer heating-cooling systems. Look for the current rating stamped

Summary of the content on the page No. 4

T8034C HEATING AND COOLING THERMOSTAT To check calibration: Heating 1. Move the temperature setting lever to the lower With System switch set at Heat, and Fan switch set at end of the temperature scale. Place the System Auto, move the temperature setting lever about 10°F switch to the Off position. Wait at least five min- (6°C) above room temperature: utes. Gas or oil-fired systems: heating should start; fan 2. Remove the thermostat cover. Move the setting should start after a short delay.