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What tools and batteries are required to install the HUNTER 44127 thermostat?
To complete the installation of your HUNTER 44127 thermostat, you will need the following:
• Phillips Screwdriver (#2)
• Two 1.5V (AA) size alkaline batteries
What are the important warnings and cautions I should know before installing the HUNTER 44127 thermostat?
Please take note of these warnings and cautions before proceeding with the installation of your HUNTER 44127 thermostat:
• Read all installation instructions before beginning installation!
• Do not disconnect the wires from your old thermostat until all wires have been properly labeled. You must label all wires properly because wire color may not indicate the function of the wire.
• All wiring must be done in accordance with local code and ordinances.
• Always turn power off to your furnace/compressor before the installation process. Failure to do so could result in damage to your thermostat and/or your heating and cooling system. Do not restore power until your installation is complete.
• This thermostat is designed for use with 24V AC/millivolt systems with a maximum of 1 amp. Higher amp or line voltage systems will cause damage to your system and increase the risk of fire.
How do I remove my old thermostat before installing the HUNTER 44127?
Follow these steps for old thermostat removal:
1. Turn off power to your compressor and furnace.
2. Remove the cover to your existing thermostat. Some thermostats may have screws or other locking devices that must first be removed. Once the wallplate is exposed, locate the wire terminals and try to identify the wire designations. If the wire terminals are not visible, they may be connected to the back of the wallplate. Look for any additional screws, tabs, or locking devices to remove the wallplate. If you are still unable to find the terminals for the wires, it may be necessary to contact the manufacturer of the original thermostat.
How should I label the wires from my old thermostat for the HUNTER 44127 installation?
1. Use the table below to write down your wire colors and the letter designations on the old thermostat. This will allow you to keep a record of your old thermostat’s wiring configuration. Wire color does not indicate the function of the wire; this is used only to help determine which wire has what letter designation.
| Wire Color | Wire letter |
|---|---|
2. After writing down the wire colors and letters, use the provided terminal stickers to label the wires.
3. To ensure wires do not fall back into the wall hole, you may tape them to the wall, or wrap them around a pencil.
What are the terminal labels for a Conventional system for the HUNTER 44127?
The terminal labels for a Conventional system are as follows:
| RH |
| RC, R |
| Y, Y1 |
| G, F |
| W, W1 |
| W2 |
| Y2 |
| C |
| A |
A jumper connects RH and RC.
What are the terminal labels for a Heat Pump system for the HUNTER 44127?
The terminal labels for a Heat Pump system are as follows:
| R, V |
| Y, Y1, M |
| G, F |
| L, F, X |
| O, R |
| B |
| W2, E, X, Aux |
| Y2 |
| C, X, X1, B |
What are some important wiring tips for installing the HUNTER 44127 thermostat?
• Only 1 reversing valve is needed to run a heat pump. If both “O” and “B” are present, “B” may be a common wire.
• Often, 2-wire heat only systems do not have terminal labels. Connect 1 wire to the Rh terminal and the other to W.
• If you have a 3-wire hot water system, the damper valve control wire will be labeled and attached to the “A” terminal.
How do I mount the wallplate for the HUNTER 44127 thermostat?
1. Remove the mounting plate by pulling it straight off the back of the Thermostat.
2. Pull the wires through the back of the mounting plate, ensuring none of the wire labels are removed.
3. Using a Phillips Screwdriver, partially install 1 screw into the top hole of the thermostat. Ensure the thermostat is level using the bubble level on the mounting plate, then install the other screw. Tighten both screws until secure.
How do I connect the wires to the HUNTER 44127 wallplate?
1. Check the charts on the back of the installation sheet and identify your system type. They are divided by Conventional and Heat Pump installations.
2. Raise all of the levers on the terminals you will be using. Heat Pump Installation labels are located on the left of the terminal blocks on the mounting plate and Conventional labels are on the right. If your installation does not call for the jumper, remove it now. It is located underneath the wire holes, between the RH and RC terminals on the conventional side.
3. If one of the terminals you need has a tab in front of it, use your finger to break the tab away. Note: Only break tabs you know you will be using. Double check your wiring configuration and make sure you are familiar with the terminals you will be using.
4. Insert the bare end of each wire all the way into the appropriate hole in the terminal block that matches the wire label then lower the lever. This will lock each of the wires in place. Tuck excess wire back into wall after they have been locked in the mounting plate. Note: Do not insert the wires into the holes in the top of the mounting block. The wires should be inserted into the front close to the hole in the mounting plate.
How do I set the system and furnace type switches on the back of the HUNTER 44127 thermostat?
Before mounting the thermostat onto the mounting plate, turn it over and find the 2 switches located on the circuit board next to the battery compartment.
1. Set the system switch to “Conv” if you have a conventional HVAC system or “HP” if you have a heat pump system.
2. Set the furnace type to “Elc” if you have an electric conventional system or a heat pump. “Gas/Oil” will be used if you have a gas or oil based conventional system.
Note: Conventional systems use the compressor for air conditioning and a separate furnace for heat. Heat pump systems use the compressor for both heating and cooling.
How do I complete the installation of the HUNTER 44127 thermostat?
1. Lay the ribbon across the battery compartment and install 2 (AA) Batteries into the back of the thermostat over it.
2. Snap the thermostat on to the mounting plate.
3. Refer to the “Setup” section of your owner’s manual to continue setup, scheduling, and daily use.
How do I cross-reference wire terminals from other thermostat brands for my HUNTER 44127?
| Hunter | Carrier | Coleman | Comfortmaker | Bryant, Payne | Rheem Ruud | Trane, Weathertron | York | Lennox (1) | Lennox (2) |
|---|---|---|---|---|---|---|---|---|---|
| R | R | R | R | R | R | R | R | R | V-VR |
| Y | Y or Y1 | Y | Y | Y | Y | Y | Y | Y | M |
| E | W2 | W2 | W1 | W2 | W2 | W | W | W1 | Y |
| E | E | E | Jumper to W2 | E | E | X2 | Jumper to W2 | E | E |
| O | O | O | O | O | O | O | O | O | R |
| B | B | B | B | ||||||
| G | G | G | G | G | G | G | G | G | F |
| L | L or F | L | L or X | L | L | X | L | ||
| C | C | X | C, X, X1 | C, X, X1 | X | B | B | C | X |
How do I wire a 4 Wire Heat / Cool Conventional system for the HUNTER 44127?
For a 4 Wire Heat / Cool Conventional system, make the following connections on the Conventional side of the terminal block. A jumper should connect the RH and RC terminals.
• Connect the Heat Power wire to RH.
• Connect the Cool Contactor wire to Y.
• Connect the Fan Relay wire to G.
• Connect the Heat Contactor wire to W.
How do I wire a 5 Wire Heat / Cool Conventional system for the HUNTER 44127?
For a 5 Wire Heat / Cool Conventional system, make the following connections on the Conventional side of the terminal block. The jumper between RH and RC should be removed.
• Connect the Heat Power wire to RH.
• Connect the Cool Power wire to RC.
• Connect the Cool Contactor wire to Y.
• Connect the Fan Relay wire to G.
• Connect the Heat Contactor wire to W.
How do I wire a 3 Wire Cool Only Conventional system for the HUNTER 44127?
For a 3 Wire Cool Only Conventional system, make the following connections on the Conventional side of the terminal block. A jumper should connect the RH and RC terminals.
• Connect the Cool Power wire to RC.
• Connect the Cool Contactor wire to Y.
• Connect the Fan Relay wire to G.
How do I wire a 3 Wire Heat Only Conventional system for the HUNTER 44127?
For a 3 Wire Heat Only Conventional system, make the following connections on the Conventional side of the terminal block. A jumper should connect the RH and RC terminals.
• Connect the Heat Power wire to RH.
• Connect the Fan Relay wire to G.
• Connect the Heat Contactor wire to W.
How do I wire a 2 Wire Heat Only Conventional system for the HUNTER 44127?
For a 2 Wire Heat Only Conventional system, make the following connections on the Conventional side of the terminal block. A jumper should connect the RH and RC terminals.
• Connect the Heat Power wire to RH.
• Connect the Heat Contactor wire to W.
How do I wire a 3 Wire Hot Water with Damper Valve Conventional system for the HUNTER 44127?
For a 3 Wire Hot Water with Damper Valve system, make the following connections on the Conventional side of the terminal block. A jumper should connect the RH and RC terminals.
• Connect the Heat Power wire to RH.
• Connect the Heat Contactor wire to W.
• Connect the Damper Valve wire to A.
How do I wire a 4 Wire with Common Conventional system for the HUNTER 44127?
For a 4 Wire with Common Conventional system, make the following connections on the Conventional side of the terminal block. A jumper should connect the RH and RC terminals.
• Connect the Heat Power wire to RH.
• Connect the Cool Contactor wire to Y.
• Connect the Fan Relay wire to G.
• Connect the Heat Contactor wire to W.
• Connect the Common wire to C.
How do I wire a Conventional Multi-Stage system for the HUNTER 44127?
For a Conventional Multi-Stage system, make the following connections on the Conventional side of the terminal block. A jumper should connect the RH and RC terminals.
• Connect the Heat Power wire to RH.
• Connect the Cool Contactor wire to Y.
• Connect the Fan Relay wire to G.
• Connect the Heat Contactor wire to W.
• Connect the Second Stage Heat wire to W2.
• Connect the Second Stage Cool wire to Y2.
How do I wire a Single Stage Heat Pump for the HUNTER 44127?
For a Single Stage Heat Pump, make the following connections on the Heat Pump side of the terminal block. A jumper should connect the R and Y terminals.
• Connect the Heat 24V Supply wire to R.
• Connect the Compressor Contact wire to Y.
• Connect the Fan Relay wire to G.
• Connect the Cool Relay / Valve wire to O.
How do I wire a Single Stage Heat Pump with Auxiliary Heat for the HUNTER 44127?
For a Single Stage Heat Pump with Auxiliary Heat, make the following connections on the Heat Pump side of the terminal block. A jumper should connect the R and Y terminals.
• Connect the Heat 24V Supply wire to R.
• Connect the Compressor Contact wire to Y.
• Connect the Fan Relay wire to G.
• Connect the Cool Relay / Valve wire to O.
• Connect the Auxiliary Heat wire to Aux/E.
• The System Monitor (L) and Common (C) wires may or may not be present.
How do I wire a Single Stage Heat Pump with Heat Reversing for the HUNTER 44127?
For a Single Stage Heat Pump with Heat Reversing, make the following connections on the Heat Pump side of the terminal block. A jumper should connect the R and Y terminals.
• Connect the Heat 24V Supply wire to R.
• Connect the Compressor Contact wire to Y.
• Connect the Fan Relay wire to G.
• Connect the Heat Relay / Valve wire to B.
• Connect the Auxiliary Heat wire to Aux/E.
• The System Monitor (L) and Common (C) wires may or may not be present.
How do I wire a Multi-Stage Heat Pump for the HUNTER 44127?
For a Multi-Stage Heat Pump, make the following connections on the Heat Pump side of the terminal block. A jumper should connect the R and Y terminals.
• Connect the Heat 24V Supply wire to R.
• Connect the Compressor Contact wire to Y.
• Connect the Fan Relay wire to G.
• Connect the Cool Relay / Valve wire to O.
• Connect the Auxiliary Heat wire to Aux/E.
• Connect the Second Stage Cool wire to Y2.
• The System Monitor (L) and Common (C) wires may or may not be present.
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