Instruction/ maintenance manual of the product T8090T Honeywell
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69-0432-1 Zone Thermostat Heating/Cooling Thermostat and Subbase or W allplate Model T8090T OWNER’S MANUAL.
2 69-0432—1 Welcome to the world of energy savings with your new Honeywell Trol-A-Temp Zone ® Thermostat. Your new thermostat will automatically control the temperature in your home to provide a high level of comfort plus energy savings when programmed according to the instructions in this manual.
3 69-0432—1 Table of Contents PAGE Features of Your Thermostat .................................................................................................... ........ 4 Setting the Temperature ..................................................
4 69-0432—1 Features of Y our Thermostat 1 FLIP-UP COVER. Lift it up to set clock for energy savings and normal temperature periods. 2 THERMOSTAT COVER. 3 THERMOMETER. Provides accurate room temperature reading. 4 CLOCK. This clock provides a 24-hour slotted dial to hold the programming pins.
5 69-0432—1 9 PROGRAM PINS. Must be inserted into 24-hour clock dial slots to control program index wheel. 10 PIN SLOTS. Located on 24-hour dial at 10-minute intervals for program pin insertion. 11 MANUAL PRO GRAM AD V ANCE BUTTON. Allows change from comfort to energy savings setting and vice versa without changing the program.
6 69-0432—1 15 WALLPLATE Provides mounting base and wiring con- nections for control of zones other than zone 1 in heating or heating-cooling systems. 16 SUBBASE Provides mounting base, wiring connec- tions and manual switching for control of zone 1 in heating or heating-cooling systems.
7 69-0432—1 Setting The T emperature For Heating: ■ Set the left lever (blue mark) to the energy savings temperature you want when you are sleeping or the associated zone is unoccu- pied. ■ Set the right lever (red mark) to the temp- erature you want for normal comfort periods.
8 69-0432—1 Inserting Clock Batteries Power is supplied to the clock by two AAA alkaline batteries (included). Install batteries in thermostat as shown in Fig. 2. Once a year or when batteries are dead, replace with two new AAA alkaline batteries. We recommend Energizer ® batteries.
9 69-0432—1 Setting the Cloc k Lift thermostat flip-up cover and you’ll find the 24-hour program dial, slotted in 10-minute increments. Adjust the clock to the current time by moving the minute hand carefully in a clock- wise direction. DO NOT reverse the minute hand.
10 69-0432—1 Daylight Savings Time When Daylight Savings Time starts, move the minute hand carefully in a clockwise direction one hour. When Daylight Savings Time ends, move the minute hand carefully in a clockwise direction 23 hours. Do NOT reverse the minute hand, or damage to the timer mechanism may occur.
11 69-0432—1 Pr ogramming You can program your thermostat to automatically lower and raise the temperature one or more times every 24 hours. Before setting your program ■ To insert a pin, push it straight into the selected notch on the program dial until it is completely seated.
12 69-0432—1 pin is inserted at 6:00 AM for high temperature (comfort period); a blue pin is inserted at 10:00 PM for low temperature (energy saving period). Two additional sets of pins are located in the program pin storage area. You can set up to six temperature changes with the pins supplied.
13 69-0432—1 Setting the Heating Program ■ Decide when you want the temperature to reach the comfort level. Find the notch on the dial that is one-half hour before this time and insert a red pin. The half-hour head start gives the furnace time to heat the house before you wake up or arrive home.
14 69-0432—1 Setting the Cooling Program ■ Decide when you want the temperature to reach the comfort level. Find the notch on the dial that is one-half hour before this time and insert a blue pin. The half-hour head start gives the air conditioner time to cool the house before you wake up or arrive home.
15 69-0432—1 Tr oub leshooting Your Honeywell Trol-A-Temp ® Thermostat requires little or no attention. Most problems can be traced to the following. (continued) PROBLEM CHECK ACTION No heat. —system switch. May be in OFF or COOL position. 1 Move system switch to HEAT position.
16 69-0432—1 Troubleshooting (continued) (continued) PROBLEM CHECK ACTION No heat. —other. Contact a qualified service technicial for assistance. Energy saving temperature program 12 hours off. —program dial for proper day or night phase. Turn clock ahead 12 hours.
17 69-0432—1 Troubleshooting (continued) (continued) PROBLEM CHECK ACTION Room temperatures are not correct. —thermostat circuits. HEATING—Make sure zone 1 sy- stem switch is set at HEAT and fan switch is set at AUTO. Move temp - erature setting levers on the appro- priate zone thermostat 5° F [3° C] above room temperature.
18 69-0432—1 Troubleshooting (continued) (continued) PROBLEM CHECK ACTION No cooling. 2 —system switch. May be in OFF or HEAT position. 1 Move switch to COOL position. —fuse or circuit breaker. If fuse is blown or breaker tripped, replace or reset.
19 69-0432—1 Troubleshooting (continued) 1 Applicable on zone 1 thermostat only. 2 Not applicable on heating-only system. If this Troubleshooting section has not solved the problem, call a qualified Trol-A-Temp ® customer service at or service technician, 1-800-828-8367 for additional assistance.
20 69-0432—1 Voltage at Clock Terminals AC VOLTAGE AT C-R TERMINALS POSSIBLE CAUSE CHECK ACTION 0 Vac 1. System power is Off. 1. Restore power. 2. Short in clock power supply wiring. 2. Replace wiring. 3. Limit switch contacts stuck open. 3. Free or replace limit switch.
21 69-0432—1 Servicing the Thermostat Heat Anticipator Setting The T8090T Thermostat has an adjustable heat anticipator that was factory-set at 0.1A. The heat anticipator must be set at 0.1A for proper system operation. See Fig. 6. M8596 MOVE INDICATOR TO 0.
22 69-0432—1 Thermometer Adjustment The thermometer was accurately calibrated at the factory and should only need adjustment if it was dropped or mishandled. If the setpoint lever and the thermometer reading do not agree, follow the procedure below.
23 69-0432—1 If you have questions regarding the installation and programming of your Honeywell Trol-A- Temp ® Thermostat, please contact a Trol-A-Temp ® customer servoce re[resentative at 1-800- 828-8367. Before you call, please have the following information available: Make and model of your furnace, old thermostat and air conditioner.
D.F. ©Honeywell Inc. 1995 Printed in Mexico Rev. 1-95 Form Number 69-0432—1 Home and Building Control Home and Building Control Helping You Control Your World Honeywell Inc.
An important point after buying a device Honeywell T8090T (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Honeywell T8090T yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Honeywell T8090T - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honeywell T8090T you will learn all the available features of the product, as well as information on its operation. The information that you get Honeywell T8090T will certainly help you make a decision on the purchase.
If you already are a holder of Honeywell T8090T, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Honeywell T8090T.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell T8090T. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell T8090T along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
