Honeywell T8401C1015 Support Question
Honeywell T8401C1015 Support Question
Find answers below for this question about Honeywell T8401C1015 - Electronic Thermostat - 1 Heat/1Cool.Need a Honeywell T8401C1015 manual? We have 1 online manual for this item!
Question posted by jaadamiak on July 7th, 2012
Replacing Batteries
how do I take the cover off to change batteries
Current Answers
Related Honeywell T8401C1015 Manual Pages
Installation Instructions - Page 1
Batteries are not required because setpoints are held permanently by : - MERCURY NOTICE
If this Product...
1. INSTALLATION
When Installing this control is replacing a ..., T8401C Electronic Thermostats
INSTALLATION INSTRUCTIONS
The T8400C and T8401C Thermostats provide singlestage, non-programmable temperature control for 24V heating-cooling systems with manual changeover from heat to follow...
Installation Instructions - Page 2
...on immediately with local electrical codes and ordinances.
Refer to the E position.
T8400C, T8401C ELECTRONIC THERMOSTATS
YES NO
NO 5 FEET
[1.5 METERS]
NO
M11338
Fig. 1. See Fig. 4. .... 3. See Fig. 5. NOTE: To ensure proper mounting of thermostat. M12202A
Fig. 2. All wiring must comply with the heating or cooling equipment in the F position. MOUNTING SCREWS (2)
WALLPLATE
...
Installation Instructions - Page 3
...
O
CHANGEOVER
1
L1
(HOT)
24V
L2
TRANSFORMER
COMPRESSOR
FAN RELAY
1 POWER SUPPLY. Wiring connections (T8400C shown). Typical hookup of T8400C in single-stage heat pump systems.
3
69-1740 T8400C, T8401C ELECTRONIC THERMOSTATS
KEEP WIRING IN SHADED AREA
G
Rc
R
W B
Y O
MOUNTING SCREW HOLE
WIRING ENTRANCE HOLE
MOUNTING SCREW HOLE
M16432
Fig. 4.
TERMINAL SCREW
G
FOR STRAIGHT...
Installation Instructions - Page 4
T8400C, T8401C ELECTRONIC THERMOSTATS
G C
R
W
B
Y
O
1
L1
(HOT)
24V
L2
TRANSFORMER
HEAT RELAY
COOL RELAY
FAN RELAY
1 POWER SUPPLY.
Typical hookup of the thermostat to select the desired fan setting.
69-1740
4
M20882
Fig. 10. Set Room
AuFtAoNOn
CooSlYOSfTf EHMeat
B PRESS LOWER EDGE OF CASE TO LATCH. Mounting thermostat wallplate. In cooling, the fan ...
Installation Instructions - Page 5
... on and off ; INCREASE SETTING DECREASE SETTING
T8400C, T8401C ELECTRONIC THERMOSTATS
3. M14681
4.
Digital display and system switches (FAN and SYSTEM). Each press changes the setpoint one degree;
M14680
Setting °F/°C Indication and Heat Cycle Rate
NOTE:
To save changes to test heat or cool outputs. M14686
5
69-1740 To set temperature setpoint...
Installation Instructions - Page 6
...10. Press the ▲ key again. Factory information (varies by model. T8400C, T8401C ELECTRONIC THERMOSTATS
NOTE:
In installer setup mode only, each press of 1, 3, 4, 5, 6, 9, or 12. Factory information is shown. Press the ▼ key to change heating/cooling temperature control to change the °C or °F indication. Table 1. bRefer to overshoot the setpoint).
9. M14689...
Installation Instructions - Page 7
T8400C, T8401C ELECTRONIC THERMOSTATS
Fan
1. In heating, the fan is controlled directly by the heating equipment and may start a few minutes after the heating equipment turns on (on most systems). Press the ▲ key to Auto.
Slide the FAN switch to raise the temperature setting above the room temperature. ...
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