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Honeywell Trol-A-Temp T8090T, Owner'S Manual, Page: 17 / 24

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Honeywell Trol-A-Temp T8090T Owner'S Manual Download Page 17

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. Heating
should start; damper should be open.  
COOLING—Make sure zone 1
system switch is set at COOL and fan
switch is set at AUTO. Move temp-
erature setting levers on the
appropriate zone thermostat 5° F  
[3° C] below room temperature.
Cooling should start; damper should
open. IF SYSTEMS DO NOT
OPERATE, CONTACT A QUALIFIED
SERVICE TECHNICIAN.

Summary of Contents for Trol-A-Temp T8090T

Page 1: ...69 0432 1 Zone Thermostat Heating Cooling Thermostat and Subbase or Wallplate Model T8090T OWNER SMANUAL ...

Page 2: ...ded The indepen dent control of each zone provides additional energy savings Recycling Notice This control contains mercury in a sealed tube Do not place control in the trash at the end of its useful life If this control is replacing a control that contains mercury in a sealed tube do not place your old control in the trash Contact your local waste management authority for instructions regarding r...

Page 3: ...nts 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 ...

Page 4: ... hour slotted dial to hold the programming pins 5 CLOCK HANDS Turn minute hand clock wise to match the correct AM or PM time to the time indicator 6 TIME INDICATOR Arrow head indicates time for 24 hour dial 7 PROGRAM INDEX WHEEL Controls high and low temperature at specific time of day as set by program pins 8 TEMPERATURE SETTING LEVERS Left blue mark controls the low temperature right red mark co...

Page 5: ...ows change from comfort to energy savings setting and vice versa without changing the program 12 HEAT ANTICIPATOR SCALEPLATE Calibrated to match the heating system current draw in amperes 13 ANTICIPATOR SETTING LEVER Must be set at 0 1A for proper system operation 14 MERCURY BULB AND BIMETAL ELEMENT 2 Provide automatic tempera ture control by switching the heating or cooling system on and off 5 8 ...

Page 6: ...ring 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 M2421 15 M8690 W Y R G 16 ...

Page 7: ...red and blue levers to the same temperature setpoint For Cooling Set the left lever blue mark to the tempera ture you want for normal comfort periods Set the right lever red mark to the energy savings temperature you want when you are sleeping or the associated zone is unoccu pied Fig 1 Setting high and low temperature setting levers 8 9 10 1 2 1 1 1 2 3 4 5 6 7 8 9 1 0 1 2 1 1 1 2 3 4 5 6 7 50 60...

Page 8: ... 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 BATTERY LOCATION FOR 2 AAA BATTERIES INSTALL WITH POSITIVE ENDS UP M7188 Fig 2 Inserting clock batteries ...

Page 9: ...wise direction DO NOT reverse the minute hand When time is correctly set the time indicator arrow see Fig 3 will point to the correct time and corresponding daytime light or nighttime dark band of the program dial EXAMPLE For 11 PM the time indicator arrow will point directly to the dark band For 11 AM the arrow will point to them light band on the dial TIME INDICATOR ARROW MINUTE HAND M8561 Fig 3...

Page 10: ...vings 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 ...

Page 11: ... The slots on the program dial Fig 4 are for the program pins which can be inserted at 10 minute intervals Three red and three blue program pins are included with your thermostat The red pins start the high temperature period the blue pins start the low temperature period A heating program is preprogrammed A red Fig 4 Program components 24 HOUR PROGRAM DIAL GRAY AREA FOR NIGHT SETTINGS FLIP UP COV...

Page 12: ...x temperature changes with the pins supplied We recomment at least five hours for each energy saving period To change the pins add a new energy saving period To remove a pin press against the program dial and pull the pin straight out DO NOT attempt to change a pin if it is engaged with the program index wheel On heating cooling systems be sure to reset the pins when the seasons change You will al...

Page 13: ...t a blue pin at the notch that corre sponds to this time After the blue pin engages the furnace will be off until room temperature drops to the energy saving setpoint You can set both a day and a night program See Fig 5 for program examples WINTER SUMMER TEMPERATURE PROGRAM PIN IN CONTROL NIGHT ENERGY SAVING PERIOD DAY ENERGY SAVING PERIOD BEGINS 10 00 PM ENDS 6 00 AM BEGINS 7 30 AM ENDS 4 00 PM T...

Page 14: ...t Start or End Programs With Manual Program Advance Button IMPORTANT To prevent damage to the program advance mechanism DO NOT use the program advance button within a 30 minute period before or after a program change The manual program advance button enables immediate one time only program changes to accommodate temporary schedule changes Press the button to immediately begin an energy saving peri...

Page 15: ...ition fuse or circuit breaker If blown or tripped replace fuse or reset breaker furnace power switch May be Off Move switch to ON heating equipment for proper operation See manufacturer s instructions thermostat connections Turn Off power Check for correct terminal hookups Repair any frayed or broken wires Firmly tighten all terminal screws airflow at register Zone damper may be closed If damper i...

Page 16: ... timer program for heating system May need more time to warm up rooms Move red pin one half hour earlier on the program dial Temperature change occurs at the wrong time program pins for correct time locations Relocate pins to desired settings Room temperatures are not correct positions of thermostat setpoint levers Reset to desired temperatures position of subbase system switch 1 Move to desired o...

Page 17: ...erature setting levers on the appro priate zone thermostat 5 F 3 C above room temperature Heating should start damper should be open COOLING Make sure zone 1 system switch is set at COOL and fan switch is set at AUTO Move temp erature setting levers on the appropriate zone thermostat 5 F 3 C below room temperature Cooling should start damper should open IF SYSTEMS DO NOT OPERATE CONTACT A QUALIFIE...

Page 18: ...sition Located outdoors and may be turned Off Move to ON position cooling equipment for proper operation See manufacturer instructions thermostat connections Turn Off power Check for correct terminal hookups Repair any frayed or broken wires Firmly tighten all terminal screws airflow at register Zone damper may be closed If damper is closed contact a qualified service technician for assistance oth...

Page 19: ... run voltage across the C and R terminals Remove thermostat from the wall plate or subbase and measure the voltage Refer to page 20 for cause and action Thermostat setting and thermometer reading disagree level position of thermostat Reinstall thermostat wallplate or subbase Use a spirit level area around thermostat for drafts or radiant heat Thermostat should be about 5 ft 1 5m above floor on an ...

Page 20: ...s burned out 4 Replace transformer Up to 15 Vac 1 System transformer used to power the clock is inadequate 1 Use additional separate transformer 2 Additional separate transformer used to power the clock has inadequate voltage 2 Install transformer with proper secondary voltage 15 to 30 Vac 1 Spring fingers on thermostat are not making proper contact with the subbase terminals 1 Rebend spring finge...

Page 21: ...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 1A Fig 6 Heat anticipator setting ...

Page 22: ...accuracy Allow at least five minutes for the cover thermometer to sense the area tempera ture then compare the readings Be careful not to touch the thermometer or breathe on it If the readings are the same replace the cover and put the system into operation If the readings are different insert a small screwdriver in the thermometer slot shown in Fig 7 and turn it until both thermometers read the s...

Page 23: ...nd 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 ...

Page 24: ...Form Number 69 0432 1 Home and Building Control Home and Building Control Helping You Control Your World Honeywell Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive No 740 Ellesmere Road Golden Valley MN 55422 Scarborough Ontario M1P 2V9 M3375 ...

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