Table of Contents Important Information... 5 Tools ... 6 Uninstalling the Existing Unit ... 7 Installing the Thermostat ... 12 installing the wall plate ... 12 connecting the wires ... 16 attaching the thermostat ... 18 Settings ... 22 Methods of Operation ... 26 manual operation ...
Page 4
Model 44155C Model 44155C Congratulations! Thank you for choosing a Hunter programmable thermostat. Your new Hunter thermostat will provide years of reliable service and year-round energy savings. Please read this manual before beginning installation and save this booklet for complete...
This thermostat is designed to work on the following heating and cooling systems: Gas – Standing Pilot Gas – Electronic Ignition Gas – Fired Boilers Gas – Milivolt Systems Oil – Fired Boilers Oil – Fired Furnace Electric Furnace...
ToolS This thermostat includes two #8 slotted screws and two wall anchors for mounting. To install your new thermostat, you will need the following supplies: Flat-head screwdriver Small Phillips-head screwdriver Hammer Electric drill and 3/16” bit Two 1.5 Volt (AA) size alkaline batteries...
Page 7
Do not disconnect the wires from the existing thermostat before reading these instructions. The wires must be labeled prior to removal to ensure proper reconnection.
ThE ExiSTing uniT 1. Turn the system power OFF from the existing thermostat. Turn the power to the HVAC system OFF at the main power panel or at the furnace. 2. Remove the existing thermostat cover to access the wires from the wall.
Page 10
RH / R / VR / 4 24 Volt RC / VC 24 Volt cool air conditioning Y / C* / M / O compressor W / H / B heating G / F...
Page 11
uninSTalling ThE ExiSTing uniT, ConT. 4. Using the provided stickers, label each wire according to the chart. (If the terminals are not labeled, contact a qualified HVAC technician.) note: Wire colors do not always comply with standards, so wire color should be ignored.
ThE ThErMoSTaT inSTalling ThE Wall plaTE 1. Remove the wall plate from the new thermostat by pressing the release tab on the bottom of the thermostat. 2. Position the new wall plate on the wall and pull the labeled wires through the opening.
Page 15
ThE ThErMoSTaT, ConT. 4. Remove the wall plate and drill two 3/16” holes where marked. 5. Tap the plastic anchors into the holes until they are flush with the wall. 6. Reposition the wall plate on the wall, pulling the wires through the opening.
ThE ThErMoSTaT, ConT. 1. Loosen, but do not remove, the terminal screws. note: a jumper wire has been provided, connecting the rC and rh terminals for Jumper systems that do not provide both an rh and rC wire. if you have both an rh and rC G RC RH Y W wire, remove this jumper.
Page 18
Thermostat Cover HEAT System Switch ENABLE RECOVERY DISABLE SYSTEM TYPE FAN OPTION W/B Y/O RH RC G RH Y/O W/B Y1...
2. Locate the Auto Recovery thermostat. If you wish to use the Auto Recovery feature, verify that the switch is in the ENABLE position. If you do not wish to use this feature, simply change the switch to the DISABLE position. See pages 44-45 for more information.
Page 21
ThE ThErMoSTaT, ConT. 4. Place the top of the thermostat over the two tabs on the wall plate. Press the thermostat onto the wall plate and press to snap the bottom tab into place. note: Do not force the thermostat onto the wall plate, as the terminal pins may be damaged.
The default setting of the thermostat is Fahrenheit (F noTiCE: Changing ThiS SETTing Will rESET ThE ThErMoSTaT To faCTorY DEfaulT prograMS. (If no button is pressed for 5 seconds, the unit will return to the Normal Display mode.) To change to Celcius (C 1.
The default for this thermostat setting is in a 12 hour format. You can change the format to 24 hour format by pressing Program. The aM/pM indicator will be off when the thermostat is in 24 hour mode. Setting day and time: 1. Press .
METhoDS of opEraTion This thermostat gives you the ability to program up to 4 custom temperature settings per day or utilize pre-programmed settings. For manual operation instructions, see pages 28-31. To utilize the pre-programmed settings, see pages 32-33. To create custom programs, see pages 34-37.
METhoDS of opEraTion, ConT. 1. Manual opEraTion Many people prefer to operate their thermostats manually, adjusting settings as needed. You can either temporarily override the settings for the current program, or permanently override all settings and adjust temperatures manually. If you want to only override the current program: 1.
Page 31
METhoDS of opEraTion, ConT. Manual opEraTion, ConT. If you want to permanently override all settings and adjust the thermostat manually: 1. Press until the Hold icon appears. Hold/Return 2. Press and hold for one second to Down enter Manual Override mode.
DEfaulT prograMS CharT 10 pm Program 3 Heat : 68 F (20 Cool : 78 F (26 4 pm Heat : 60 Cool : 85 Program 4 Heat : 60 F (16 Cool : 82 F (28 Program 1 Heat : 68 Cool : 78 8 am Program 2...
Page 33
METhoDS of opEraTion, ConT. By using the pre-programmed settings, this thermostat can save you money by optimizing energy usage in heating and cooling. After setting the time and temperature scale, no additional action is needed to utilize the pre- programmed settings.
• Program temperature can be set in increments of 1 • After 15 seconds of inactivity during programming, the thermostat will return to Normal Display mode. • When setting the program time, note the AM/ PM indicator. • Press Hold/Return mode.
Page 36
M T W TH F HEAT COOL system program heat cool hold /return...
Page 37
7. To review your program settings, press repeatedly to review the customized Program programs. (You can make changes at any time when the thermostat is in Program mode.) 8. Slide the system selector switch position and repeat steps 2-5. to change the hour. Press to change the minute.
(If no button is pressed after 5 seconds, the backlight will turn off.) note: if the thermostat shows a low Battery Warning, the backlight will not operate. follow the instructions on pages 42-43 to change batteries.
Page 41
iConS anD fEaTurES, ConT. 3. Span setting mode – allows you to adjust the system ON/OFF cycle rate. The default setting is 2 (the system cycles ON or OFF when the temperature is within 1 above and below the set temperature.) The span setting can be adjusted if your system is cycling too fast or too slowly.
Page 43
When the batteries are detected as weak, the icon will flash until new AA alkaline batteries are installed. If the batteries become too weak for normal operation, the thermostat enters the second battery power shortage mode. When insufficient battery power is left, the battery icon will flash alone on the display and your system will turn off.
Page 45
Auto recovery calculates the time needed to adjust the temperature to the next program setting. When the thermostat is in Auto Recovery mode, the display will flash alternating messages of RECO and the time. Auto Recovery can be disabled by sliding the recovery switch on the back of the circuit board to the disable position.
Page 47
95 C) or drops below 40 (If your HVAC system has malfunctioned, the system will no longer respond to thermostat controls and the Auto cut off will have no effect.) F (35 F (4...
3.5 minute delay before it can be restarted to prevent compressor damage due to rapid cycling. resetting the unit To restore the thermostat to the reset original factory settings, press the reset button with a paperclip. (This will erase any user-programs.)
1 a. Check batteries and battery connections. 1 b. Reset the thermostat. 2. The auto fan feature will not operate properly. 2 a. Remove the thermostat from the wall plate and set the HG/HE switch to the correct position. 3. My display is erratic.
TrouBlEShooTing 5. My heating or cooling will not turn on or off. 5 a. Check the Heat/Cool function switch to ensure it is set to the desired position. 5 b. Wait. There may be as much as a 4-minute delay before the system turns on or off to protect the compressor.
Page 51
7 a. Replace unit. 8. The LCD screen permanently reads HI, LO, or ERR. 8 a. Replace unit. 9. How do I just operate my thermostat manually? 9 a. Manual operation instructions are on pages 28-31.
Page 52
Is there help on the web? Yes. Visit http://www.hunterfan.com for more information. Can’t I just call someone? Sure. Our Technical Support Group is available from 8 am to 5 pm CST. They may be reached toll-free at 1-888-830- 1326.