residential THERMOSTAT Digital Thermostat T1035 5+2 DAY PROGRAMMABLE up to 1-heat & 1-cool HEAT COOL HEAT PUMP Stages: 1-Heat, 1-Cool Battery or System Powered Back-Lit Digital Display Fahrenheit or Celsius Service Filter Indicator Bi-Color LED (when system powered) Use with most Air Conditioning & Heating Systems including: 1 Stage Electric Cooling & 1 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat. INSTALLATION INSTRUCTIONS Venstar Inc.
INSTALLATION INSTRUCTIONS Contents T1035 Page # Safety Warnings Preparation Remove Old Thermostat Battery Replacement Wire Connections Jumper Configuration Test Operation Troubleshooting Warranty Page 2
INSTALLATION INSTRUCTIONS T1035 Safety Warnings P/N 1035 CAUTION Follow Installation Instructions carefully. DISCONNECT POWER TO THE HEATER AIR CONDITIONER BEFORE REMOVING THE OLD THERMOSTAT AND INSTALLING THE NEW THERMOSTAT. WARNING CAUTION The two Alkaline “AA” batteries must be replaced at least once every 12 months to ensure proper operation. The Low Battery icon (fig. 1) will appear on the display when it is time to replace the batteries. If the thermostat is connected to FIG.
INSTALLATION INSTRUCTIONS T1035 Preparation : I2:00 PM Su : I2:00 PM Su Proper installation of the thermostat will be accomplished by following these step by step instructions. If you are unsure about any of these steps, call a qualified technician for assistance. These tools will be required: Flat Blade Screwdriver : I2:00 PM Su : I2:00 PM Su : I2:00 Su PM Wire cutter & Stripper Make sure your Heater/Air Conditioner is working properly before beginning installation of the thermostat.
INSTALLATION INSTRUCTIONS T1035 Remove & Replace Old Thermostat : I2:00 PM Su : I2:00 PM Su : I2:00 PM Su : I2:00 Su PM Remove the cover of the old thermostat. If it does not come off easily check for screws. Loosen the screws holding the thermostat base or subbase to the wall, and lift away. Disconnect the wires from the old thermostat. Tape the ends of the wires as you disconnect them, and mark them with the letter of the terminal for easy reconnection to the new thermostat.
INSTALLATION INSTRUCTIONS T1035 Battery Replacement The batteries are easily accessible from the battery slot located on the front of the thermostat (fig. 1). To open the battery slot, press down on the battery cover (fig. 1) and pull out (fig. 2). Pull out : I2:00 PM Su Press down Battery slot (Bottom View) FIG. 1 FIG. 2 Remove the old batteries and replace with the new AA alkaline batteries (fig. 3). New batteries in Old batteries out FIG.
INSTALLATION INSTRUCTIONS T1035 Wire Connections : I2:00 Su PM If the terminal designations on your old thermostat do not match those on the new thermostat, refer to the chart below or the wiring diagrams that follow. Wire from the old thermostat terminal marked C Function Common Install on the new thermostat connector marked C (optional) Power RH* Y1 or Y Cooling Y W1, W or H Heating W G or F Fan G Power RC* Rev.
INSTALLATION INSTRUCTIONS T1035 Sample Wiring Diagrams Gas or Electric Heat 4 Wire, 1 Stage Cooling, 1 Stage Heating Residential Gas or Electric Heat, Electric Cool, split systems & package units. For jumper configuration see pages 14 and 15. Factory installed jumper between RC and RH Common wire optional* O/B RC G W Y RH C GAS OR ELECTRIC HEAT W FAN G POWER R COMPRESSOR Y 4 Conductor 18 to 22 gauge unshielded cable from the thermostat to the equipment.
INSTALLATION INSTRUCTIONS T1035 Sample Wiring Diagrams Gas or Electric Heat 4 Wire, 1 Stage Cooling, 1 Stage Heating-Heat Pump with O reversing valve. Residential Heat Pumps, split systems & package units, with no auxiliary heat. For jumper configuration see page 16. Common wire optional* Factory installed jumper between RC and RH O/B RC G W Y RH C POWER R REVERSING VALVE O FAN G COMPRESSOR Y 4 Conductor 18 to 22 gauge unshielded cable from the thermostat to the equipment.
INSTALLATION INSTRUCTIONS T1035 Sample Wiring Diagrams Gas or Electric Heat 4 Wire, 1 Stage Cooling, 1 Stage Heating-Heat Pump with B reversing valve. Residential Heat Pumps, split systems & package units, with no auxiliary heat. For jumper configuration see page 17. Common wire optional* Factory installed jumper between RC and RH O/B RC G W Y RH C POWER R REVERSING VALVE B FAN G COMPRESSOR Y 4 Conductor 18 to 22 gauge unshielded cable from the thermostat to the equipment.
INSTALLATION INSTRUCTIONS T1035 Sample Wiring Diagrams Gas or Electric Heat 3 Wire, 1 Stage Heating Residential Gas or Electric Heat units with a separately controlled fan. For jumper configuration see pages 14 and 15. Factory installed jumper between RC and RH Common wire optional* O/B RC G W Y RH C GAS OR ELECTRIC HEAT W FAN G POWER R 3 Conductor 18 to 22 gauge unshielded cable from the thermostat to the equipment. * Common wire is optional in all installations.
INSTALLATION INSTRUCTIONS T1035 Sample Wiring Diagrams Gas or Electric Heat 2 Wire, 1 Stage Gas Heat Residential Gas or Millivolt units. For jumper configuration see page 14. Factory installed jumper between RC and RH Common wire optional* O/B RC G W Y RH C GAS OR ELECTRIC HEAT W POWER R 2 Conductor 18 to 22 gauge unshielded cable from the thermostat to the equipment. * Common wire is optional in all installations.
INSTALLATION INSTRUCTIONS T1035 Sample Wiring Diagrams Gas or Electric Heat Dual Transformer 5 Wire, 1 Stage Cooling, 1 Stage Heating Residential Gas or Electric Heat, Electric Cool, split systems & package units. For jumper configuration see pages 14 and 15. Remove the factory installed jumper between RC and RH Common wire optional* O/B RC G W Y RH C FAN W GAS OR ELECTRIC HEAT 5 Conductor 18 to 22 gauge unshielded cable from the thermostat to both sets of equipment.
INSTALLATION INSTRUCTIONS T1035 Jumper Configuration Cooling and Gas Heating Residential Gas, Electric Cool, split systems & package units. Rev. AA Rev.
INSTALLATION INSTRUCTIONS T1035 Jumper Configuration Cooling and Electric Heating Residential Electric Heat units with a separately controlled fan. Rev. AA Rev.
INSTALLATION INSTRUCTIONS T1035 Jumper Configuration Cooling and Heating - Heat Pump with O reversing valve. Residential Heat Pumps, split systems & package units, with no auxiliary heat. Rev. AA Rev.
INSTALLATION INSTRUCTIONS T1035 Jumper Configuration Cooling and Heating - Heat Pump with B reversing valve. Residential Heat Pumps, split systems & package units, with no auxiliary heat. Rev. AA Rev.
INSTALLATION INSTRUCTIONS T1035 Test Operation : I2:00 PM Su : I2:00 PM Su Turn on the power to the Heating/Air Conditioning system. On the thermostat, slide the Mode Switch to HEAT. Press the COOLER or WARMER button until the set temperature is 10 degrees above room temperature. The HVAC unit should energize in the heating mode. Note: You may need to wait up to five minutes for heating to energize due to the compressor lockout feature.
INSTALLATION INSTRUCTIONS T1035 Trouble Shooting : I2:00 PM Su : I2:00 PM Su : I2:00 Su PM SYMPTOM: The slide switches on the thermostat are very difficult to move. CAUSE: The backplate of the thermostat is screwed too tightly into a wall that is not perfectly flat. REMEDY: Loosen the screws holding the thermostat into the wall. SYMPTOM: The Air Conditioning does not attempt to turn on.
INSTALLATION INSTRUCTIONS T1035 Trouble Shooting : I2:00 SYMPTOM: The Heating does not attempt to turn on. CAUSE: The heating setpoint is set too high, the Mode Switch is not set for Heat, or the batteries are too weak. REMEDY: Consult the Normal Operation section in the Owner’s Manual to: Raise the heating setpoint. Correct the Mode Switch position. Replace the batteries. PM Su P/N 88-634 Rev.
INSTALLATION INSTRUCTIONS T1035 Warranty One-Year Warranty - This Product is warranted to be free from defects in material and workmanship.
