Hunter 44155c Thermostat Instruction Manual
Hunter 44155c Thermostat
Hunter 44155c Thermostat Instructions
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Hunter 44155c Thermostat Specifications
| Feature | Specification |
|---|---|
| Model | 44155C Set & Save Programmable Thermostat |
| Manufacturer | Hunter Fan |
| Manual Form Number | 42708-01 (20120210) |
| Compatible Systems | Gas standing pilot, gas electronic ignition, gas-fired boilers, gas millivolt systems, oil-fired boilers, oil-fired furnace, electric furnace, electric air conditioning, single-stage heat pump (no auxiliary) |
| Incompatible Systems | Multi-stage heat pump systems, 110/220 V baseboard heating |
| Power Source | Two 1.5 V AA alkaline batteries |
| Common (C) Wire | Not used (battery-powered unit) |
| Wiring Terminals | G, RC, RH, Y/O, W/B, Y1 |
| RC–RH Jumper | Factory installed; remove only if separate RH and RC wires exist |
| Mounting Hardware Included | Two #8 slotted screws and two plastic wall anchors |
| Mounting Hole Drill Size | 3/16 in |
| Required Tools | Flat-head screwdriver, small Phillips-head screwdriver, hammer, electric drill with 3/16 in bit |
| Heating Type Switch | HG (gas/oil, default) or HE (electric furnace) |
| System Type Switch | STD (Standard) or HP (Heat Pump) |
| Auto Recovery Switch | ENABLE / DISABLE |
| System Switch Positions | HEAT, OFF, COOL |
| Fan Switch | AUTO / ON |
| Programs per Day | Up to 4 (minimum 2) |
| Program Time Increment | 10 minutes |
| Temperature Setting Increment | 1 °F (1 °C) |
| Programmable Temperature Range | 45 °F to 95 °F (7 °C to 35 °C) |
| Display Temperature Range | 30 °F to 99 °F (0 °C to 37 °C); "LO" below 30 °F, "HI" above 99 °F |
| Default Temperature Scale | Fahrenheit (Celsius selectable) |
| Default Time Format | 12-hour (24-hour selectable) |
| Backlight | INDIGLO® Night-Light, turns off after 5 seconds of inactivity |
| Filter Change Reminder | After 400 hours of system use |
| Filter Timer Reset | Hold Filter button for 3 seconds |
| Span (Cycle Rate) Default | 2 (±1 °F / 0.5 °C around setpoint) |
| Compressor Protection Delay | 3.5 minutes after cooling cycle stops (up to 4 minutes) |
| Auto Cut Off | System off above 95 °F (35 °C) or below 40 °F (4 °C) |
| Programming Timeout | 15 seconds of inactivity |
| Memory Retention During Battery Change | 1 minute |
| Low Battery Warning | Two stages |
| Technical Support | 1-888-830-1326, 8 am to 5 pm CST |
Hunter 44155c Thermostat Details
The Hunter 44155C Set & Save is a battery-powered programmable thermostat built to replace an existing wall unit with only basic tools. Before you take the old thermostat off, turn off the system at the thermostat and the main power panel. Then label every wire with the stickers provided, going by the old terminal letters instead of wire color, since wire colors do not always follow standards. Secure the wires so they don't slip back into the wall while you disconnect them.
To mount the unit, press the release tab to separate the wall plate and feed the labeled wires through the opening. If the old holes don't line up, level the plate and mark new ones. Drill the holes, tap the anchors in flush with the wall, and fasten the plate. Loosen each terminal screw without removing it, insert the wire behind the black terminal shield, and tighten. Wrap any unused wires in electrical tape and push them back into the wall.
Before you attach the thermostat, set the SYSTEM switch to OFF and the FAN switch to AUTO. Then set the switches on the back of the unit: HE/HG for the heating fuel, STD/HP for the system type, and the Auto Recovery position. Hook the top of the thermostat over the two tabs on the wall plate and snap the bottom into place without forcing it, since the terminal pins can be damaged. Insert the batteries and restore power.
To switch to Celsius, hold Up, press Reset with a paperclip, and release Reset when the LCD lights up. Changing the scale resets the factory default programs. To set the day and time, press Day/Time repeatedly to step through hour, minutes and weekday, and adjust each with Up or Down. Pressing Day/Time and then Program switches to 24-hour format, which turns off the AM/PM indicator.
The unit comes with four energy-saving default programs. Program 1 (6 am) and Program 3 (4 pm) heat to 68 °F and cool to 78 °F. Program 2 (8 am) sets 60 °F heat and 85 °F cool. Program 4 (10 pm) sets 60 °F heat and 82 °F cool. For custom schedules, slide the System switch to HEAT or COOL, press Program, and set the hour, minutes and temperature for each period. Repeat for every day, then do the same for the other mode.
For manual control, hold Up or Down for one second to enter Manual Override, which changes only the current program. For a permanent hold, press Hold/Return until the Hold icon appears, then adjust the temperature. You can change the span setting by holding Up and Down together until SPAN appears. Higher values make the system run longer, and the span returns to 2 after a reset or a battery change.
Auto Recovery works out how much lead time the system needs to reach the next program temperature and flashes RECO while it runs. It does not work while a hold is active. The low-battery icon has two stages: at the second stage the system shuts off until you install new batteries. An ERR message points to a battery fault and means you have to reset and reprogram the thermostat. The troubleshooting section covers blank displays, wrong program timing and systems that won't turn on.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Hunter 44155c Thermostat, and we answer them below.
