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Popular Honeywell T8090T Manual Pages
Owner's Manual - Page 1
Zone Thermostat
Heating/Cooling Thermostat and Subbase or Wallplate Model T8090T
OWNER'S MANUAL
69-0432-1
Owner's Manual - Page 2
...
proper disposal of the control, or of
its useful life. If this manual.
at the end of an old control containing mercury in a sealed tube. Contact your new Honeywell Trol-A-Temp Zone® Thermostat. If you heat or cool each zone provides additional energy savings. Welcome to the instructions in this control is replacing a control that contains mercury in...
Owner's Manual - Page 3
Table of Contents
PAGE
Features of Your Thermostat ...4 Setting the Temperature ...7 Inserting Clock Batteries ...8 Setting the Clock ...9 Programming ...11 Troubleshooting ...15 Servicing the Thermostat ...21
Heat Anticipator Setting ...21 Thermometer Adjustment ...22
3
69-0432-1
Owner's Manual - Page 4
... or PM
time to hold the programming pins.
5 CLOCK HANDS.
Features of
day as set clock for 24-hour dial.
7 PROGRAM INDEX WHEEL. Left
(blue mark) controls the low temperature; Controls high
and low temperature at specific time of Your Thermostat
1
2
M8693 3
1 FLIP-UP COVER.
Arrow head indicates
time for energy savings and normal temperature...
Owner's Manual - Page 5
... MERCURY BULB AND BIMETAL ELEMENT(2). Calibrated to energy savings setting and vice versa without changing the program.
12 HEAT ANTICIPATOR SCALEPLATE. Provide automatic temperature control by switching the heating or cooling system on 24-hour dial at 0.1A for program pin insertion.
11 MANUAL PROGRAM ADVANCE BUTTON. Must be inserted into 24-hour...
Owner's Manual - Page 9
wise
direction.
DO NOT reverse the
minute hand.
Setting the Clock
Lift thermostat flip-up cover and you'll find
the 24-hour program dial, slotted in a clock- When time is correctly set, the time indicator
arrow (see Fig. 3) will point to them light band on the dial.
MINUTE HAND
TIME INDICATOR ARROW
M8561...
Owner's Manual - Page 11
... times every 24 hours. FLIP-UP COVER
24-HOUR PROGRAM DIAL (GRAY AREA FOR NIGHT SETTINGS
Before setting your program
■ To insert a pin, push it is preprogrammed. A red
PROGRAM PINS
THERMOSTAT COVER
PROGRAM PIN SLOT PROGRAM INDEX WHEEL
MANUAL PROGRAM ADVANCE BUTTON
PROGRAM PIN STORAGE
TIME INDICATOR ARROW
M8692
Fig. 4-Program components.
11...
Owner's Manual - Page 14
...DO NOT use the program advance button within a 30-minute period before this time. Using the manual advance button will be off until the room
temperature rises to the energy saving setpoint. The half... changes. if the program indicator shows red, the higher temperature is in the desired mode. Setting the Cooling Program
■ Decide when you want the energy saving period to start gives the...
Owner's Manual - Page 15
....
-system switch. Turn Off power. Repair any frayed or broken wires. Most problems can be in OFF or Move system switch to the following. Move switch to ON.
-heating equipment for correct terminal hookups.
Troubleshooting
Your Honeywell Trol-A-Temp® Thermostat requires little or no attention.
If blown or tripped, replace fuse or reset breaker.
-furnace...
Owner's Manual - Page 16
... warm -timer program for correct time occurs at programmed May need more time to desired settings. Move red pin one-half hour earlier on
up at the wrong locations.
are not correct.
Relocate pins to warm up the program dial. Contact a qualified service technicial for assistance. Troubleshooting (continued)
PROBLEM
CHECK
ACTION
No heat.
-other.
Owner's Manual - Page 17
... SERVICE TECHNICIAN.
(continued)
69-0432-1 Move temperature setting levers on the appropriate zone thermostat 5° F [3° C] below room temperature. Heating should be open .
Cooling should open . are not correct.
17
ACTION
HEATING-Make sure zone 1 system switch is set at HEAT and fan switch is set at AUTO. damper should start ; Troubleshooting (continued)
PROBLEM...
Owner's Manual - Page 18
...instructions. Firmly tighten all terminal screws. Located outdoors and may be closed , contact a qualified service technician for proper operation.
-thermostat connections.
-airflow at register.
Contact a qualified service.... Repair any frayed or broken wires. If damper is blown or breaker tripped, replace or reset. Troubleshooting (continued)
PROBLEM No cooling. 2
CHECK
-system...
Owner's Manual - Page 19
.... Contact qualified service technician for drafts or radiant heat.
-calibration of thermostat.
See instructions on page 22.
1 Applicable on zone 1 thermostat only. 2 Not applicable on an inside wall. Thermostat setting and thermometer reading disagree. Thermostat should be about 5 ft [1.5m] above floor on heating-only system. Troubleshooting (continued)
PROBLEM Clock does not...
Owner's Manual - Page 21
See Fig. 6. MOVE INDICATOR TO 0.1A
M8596
Fig. 6-Heat anticipator setting.
21
69-0432-1
The heat anticipator must be set at 0.1A for proper system operation. Servicing the Thermostat
Heat Anticipator Setting The T8090T Thermostat has an adjustable
heat anticipator that was factory-set at 0.1A.
Owner's Manual - Page 23
Before you have the following information available: Make and model of your furnace, old thermostat and air conditioner.
23
69-0432-1 If you call, please have questions regarding the installation and programming of
your Honeywell Trol-ATemp® Thermostat, please contact a Trol-A-Temp® customer servoce re[resentative at 1-800-
828-8367.
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