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ELECTRONIC THERMOSTATS
IMPORTANT SAFETY INFORMATION
WARNING:
• Always turn off power at the main power source by unscrewing
fuse or switching circuit breaker to the off position before installing,
removing, cleaning, or servicing thermostat.
• Read all of the information in this manual before installing or
programming this thermostat.
• This is a 24V AC low-voltage thermostat. Do not install on voltages
higher than 30V AC.
• All wiring must conform to local and national building and electrical
codes and ordinances.
• Do not short (jumper) across terminals on the gas valve or at the
system control to test installation. This will damage the thermostat
and void the warranty.
MODEL 8336
2 Heat / 2 Cool Digital
Heat Pump
User's Manual
Installation and
Operation
1
®
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Table of Contents
Related Manuals for Aprilaire 8336
Summary of Contents for Aprilaire 8336
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Page 1: Heat Pump
• Do not short (jumper) across terminals on the gas valve or at the system control to test installation. This will damage the thermostat and void the warranty. ® MODEL 8336 2 Heat / 2 Cool Digital Heat Pump User’s Manual... -
Page 2: Replacing Existing Thermostat
Features • Multi Stage heating and cooling control. • Zone system compatible as a master thermostat. • Multi-Colored LED indicators for system status. • Low battery indicator. • Fahrenheit/Celsius display option. • Adjustable from 45°F (4°C) to 90°F (32°C). • Accuracy within ± 1 degree. •... - Page 3 6. Refer to the following section for instructions on how to install thermostat. Installing the Model 8336 Thermostat NOTE: For new installations, mount thermostat on inside wall, 4-5 feet above the floor. Do not install behind a door, in a corner, near air vents, in direct sunlight, or near any heat or steam generating fixtures.
- Page 4 5. Place thermostat against the wall at desired location. Make sure wires will feed through opening on base of thermostat. 6. Mark placement of mounting holes. See Fig. 3. Set base aside. Mounting Holes Batteries NOT Required. 7. Drill the marked holes using a 3/16" drill bit. NOTE: Enclosed plastic anchors do not require a drilled hole for drywall.
- Page 5 11. Connect wires to terminal strip. Refer to wiring diagrams on other side of this sheet. Make sure wire connections are secure. 12. Put the °F/°C switch to either °F for Fahrenheit display or °C for Celsius display readout. Batteries NOT Required. 13.
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Page 6: Operation
Setting or Changing the Setpoint Temperature 1. Press either the The display will show the current temperature setpoint. COOL-OFF-HEAT-EM 2. Press either the to adjust the temperature setting either up or down. The display will return to the room temperature display five seconds after the last input and the new setpoint will be saved. -
Page 7: To Test Thermostat
To Test Thermostat WARNING: DO NOT SHORT (JUMPER) ACROSS TERMINALS OF GAS VALVE OR SYSTEM CONTROL TO TEST OPERATION. THIS WILL DAMAGE THE THERMOSTAT AND VOID YOUR WARRANTY. CAUTION: Do not switch system to cool if the temperature is below 50°F (10°C). This can damage the air conditioning system and cause personal injury. -
Page 8: Changing Fahrenheit (F) To Celsius (C)
Changing Fahrenheit (F) to Celsius (C) The thermostat is preset to display the temperature in degrees Fahrenheit. You may change the display readout to Celsius if desired. 1. Move the manual switch marked “F” (Fahrenheit) and “C” (Celsius) located at the top center of the circuit board to the desired setting. (see page 5) 2. - Page 9 If problems with thermostat cannot be solved, call: Technical Support: 608-257-8801 Monday-Friday 7:45 am-5:00 pm CST...
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Page 10: Wiring Diagrams
24 VAC, COMMON THE LOW VOLTAGE TERMINAL DESIGNATIONS AND THEIR DESCRIPTION AND/OR FUNCTION ARE USED ON ALL SPLIT SYSTEM CONDENSORS AND HEAT PUMPS APRILAIRE MODEL 8336 HEAT PUMP CONVERSION TO COLEMAN HEAT PUMPS 24 VAC, RETURN COMPRESSOR CONTACTOR REVERSING VALVE [HEATING MODE]... - Page 11 APRILAIRE MODEL 8336 HEAT PUMP THERMOSTAT CONVERSION TO COMFORTMAKER NOTE 1: E AND W2 TERMINALS JUMPERED AT THERMOSTAT NOTE 2: W2 TERMINAL ON COMFORTMAKER PCB CAPPED NOTE 3: X TERMINAL ON COMFORTMAKER PCB CAPPED 24 VAC, RETURN COMPRESSOR CONTACTOR REVERSING VALVE [COOLING MODE] FAN CONTACTOR CIRCUIT 2ND.
- Page 12 APRILAIRE MODEL 8336 HEAT PUMP THERMOSTAT CONVERSION TO PAYNE RELIANT AND ENDURA MODEL HEAT PUMP SYSTEMS NOTE 1: W3 TERMINAL ON PAYNE PCB CAPPED 24 VAC, RETURN COMPRESSOR CONTACTOR REVERSING VALVE [COOLING MODE] FAN CONTACTOR CIRCUIT EMERGENCY HEATING CIRCUIT 2ND. STAGE HEATING CIRCUIT...
- Page 13 THE LOW VOLTAGE TERMINAL DESIGNATIONS AND THEIR DESCRIPTION AND/OR FUNCTION ARE USED ON ALL SPLIT SYSTEM CONDENSORS AND HEAT PUMPS APRILAIRE MODEL 8336 HEAT PUMP THERMOSTAT CONVERSION TO YORK -E1CS, -E1FB, -E1FH HEAT PUMP SYSTEMS NOTE 1: E AND W2 TERMINALS...
- Page 14 APRILAIRE MODEL 8336 HEAT PUMP THERMOSTAT CONVERSION TO LENNOX 24 VAC, RETURN COMPRESSOR CONTACTOR REVERSING VALVE [COOLING MODE] FAN CONTACTOR CIRCUIT EMERGENCY HEATING CIRCUIT 2ND. STAGE HEATING CIRCUIT SYSTEM MONITOR LED 24 VAC, COMMON THE LOW VOLTAGE TERMINAL DESIGNATIONS AND THEIR DESCRIPTION AND/OR...
- Page 15 APRILAIRE MODEL 8336 HEAT PUMP THERMOSTAT CONVERSION TO LENNOX HP21 WITH CB21 PCB HEAT PUMP SYSTEMS 24 VAC, RETURN R-VR COMPRESSOR CONTACTOR REVERSING VALVE [COOLING MODE] FAN CONTACTOR CIRCUIT EMERGENCY HEATING CIRCUIT 2ND. STAGE HEATING CIRCUIT 24 VAC, COMMON THE LOW VOLTAGE TERMINAL DESIGNATIONS AND THEIR DESCRIPTION AND/OR...
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Page 16: Limited Warranty
Limited Warranty Your Research Products Corporation Aprilaire ® Thermostat unit is expressly warranted for two (2) years from date of installation to be free from defects in materials and workmanship. Research Products Corporation’s exclusive obligation under this warranty shall be to supply, without charge, a replacement for any thermostat which is found...