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I have an older Carrier Heat Pump which I am trying to update the thermostat control with a Hunter model 44550. The problem is that the wiring to the current thermostat is as follows, G= green wire, R= red wire, W2= blue wire, O= orange wire, Y= yellow wire, E= grey wire and C= white wire. If I am reading the schematic correct for the Hunter thermostate I am to wire as follows Green to G, Red to RC, Blue to W, Orange to O, Yellow to Y/Y1, C cap it as batteries are used. It does not tell me what to do with the grey wire. Also do I select single stage heat pump and do I leave the jumper wire betweem RC & RH? Thank you for your help. Contact me at 541-660-4856 or lorimecca@gmail.com. Lori Mecca

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JUMPER STAYS BETWEEN RC AND RH SO YOU HAVE INCOMING POWER FOR BOTH COOLING AND HEATING. THE WHITE WIRE YOU SAID C IS COMMON AND SHOULD BE USED IF POSSIBLE TO COMMON TERMINAL ON NEW STAT . IF THERE IS NO COMMON, THEN CAP IT BUT YOU'LL BE CHANGING BATTERIES EVERY FEW YEARS. I LIKE THE STATS WITH A COMMON POWERED OFF THE TRANSFORMER BUT YOURS MAY NOT HAVE A COMMON. THE GREY WIRE CONNECTED TO THE E TERMINAL IS FOR EMERGENCY HEAT. IT KILLS POWER TO THE HEAT PUMP, HEATS THE HOUSE ON IMMEDIATE CALL FOR HEAT WITH JUST THE INDOOR BLOWER AND THE INDOOR HEAT STRIPS. THIS PREVENTS ANY DAMAGE OR INCREASED DAMAGE TO THE COMPRESSOR IF YOU SUSPECT A PROBLEM.YOU SHOULD HAVE A TERMINAL ON THE NEW STAT THAT IS MARKED E OR PERHAPS X2 OR W3. THAT IS WHERE THE GEY WIRE GOES. IT IS POSSIBLE THE WIRE CONNECTED TO W DOES THE SAME THING AND YOU CAN GET BY WITHOUT THE GREY WIRE CONNECTED.ALSO SELECT SINGLE STAGE HEAT PUMP. SINGLE STAGE COOLING AND TWO STAGE HEAT . FIRST STAGE HEAT IS YOUR HEAT PUMP AND SECOND STAGE IS YOU STRIPS.

Posted on Oct 26, 2008

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How to turn hunter thermastat model 44134 on


This question needs to be reclassified with aftermarket programmable home thermostats--not fans.

Hunter 44134

Getting the wiring connections correct to the terminals in the back plate is essential. Understanding better which colored wires do what functions for your particular brand and model of HVAC gear proves essential, too: "That's the rub!"

Unlike the brilliant and wisely-instituted electrical code, a sensible common "code" for HVAC thermostat wires doesn't exist--each brand, and many models represented by such brands--may have their own peculiar wiring color conventions. HVAC techs also have noted the increasing numbers of brands and models in the market these days, as well--thus, they too may resort to online help threads concerning such issues. (Certainly, the wiring conventions for heat pumps differs also from that of a conventional heat/air setup.)

Unfortunately, many of Youtube's demonstrations from HVAC pros prove merely general info concerning HVAC systems--these may prove somewhat useful: Being merely general info, they're often not specific enough always for particular units, though. (This proves keenly true concerning thermostat wiring.)

Always switch off the circuit breaker for your HVAC system before proceeding with wiring. My system is a Goodman heat pump--it uses a five-wire thermostat setup: The 44134 model from Hunter doesn't feature a terminal in the back plate for the "C" wire for that. (The blue wire from my Goodman heat pump is the "Comm" or "C" wire--that's very confusing in it's own way--the "B" terminal on the back plate for the 44134, and most other programmable thermostats, often is used with B-coded wires for other manufacturers' HVAC units--generally, "B" wires for such units are blue, as well--beware of reliance upon wiring colors!)

Hunter's FAQs clearly indicate that the "C" wire connection isn't always necessary, nor appropriate, for their thermostats--their 44134 is one isn't an exception. I twisted on a small, gray wirenut onto end of my blue Comm wire, further securing that better with electrical tape. (Simply wrapping the Comm wire well with electrical tape should prove also sufficient.)

Unless you know your system's peculiar wiring very well (that is, you're likely an HVAC tech), don't try to connect a Comm wire to another terminal on the back plate for the 44134--you'll likely ruin your thermostat (perhaps along with some other HVAC electronics): You may need then to get an HVAC tech out, after all!

As indicated above, don't merely "match" wiring colors (as a woman might for interior decorating or remodeling)!: This proves a continuing and overly common, comical mistake! Prove instead somewhat skeptical of thermostat wiring colors! A Biblical scripture applies: "Be as wise as serpents!" Take your time to get wiring connections right!

I've noted that the 44134 unit relies totally upon 2 AA batteries (not supplied in the package)--those must be in good working order and oriented correctly--otherwise, your thermostat and HVAC system won't function. Furthermore, the control unit may be easily removed from the back plate--thus allowing "easy-chair" configuration--again, HVAC and fan functions will halt immediately--the connected unit proves necessary for continued function.

Hunter also points out (on their packaging as well) that the 44134 (and, many other (if not all) Hunter thermostats) won't work with baseboard heating systems. Hunter's site FAQs prove too sparse--some may prove keenly useful, nonetheless.

I can't yet get my heat pump system to work with Hunter's "always on" fan switch setting--the rightmost "Auto/On" setting for that bottom-mounted switch at the right. Perhaps a jumper wire proves necessary in the back plate terminals--somewhere. (I've noted this also for Hunter's common 44277 model, as well.) I glean perhaps that somehow invoking the "G" terminal proves necessary. As usual, investigation proves warranted.

Definitely note the "Cool, Off, Heat" switch on the bottom left of the unit: Yeah, that's all too easy to forget. The Hunter 44134 doesn't provide any feature allowing automatic switching between heating and cooling--one must choose which function for the thermostat to control. If the switch is set to "Heat," cooling isn't possible--and, vice-versa.

For reference and troubleshooting, keep the manual and install instructions in a safe, memorable, and easily accessible place. Hunter does provide PDF manual versions online--installation instructions prove lacking online though--they're not in the user manual, either. Unfortunately, Hunter doesn't upgrade it's PDF manual versions.

I glean that Honeywell units may prove generally more easily configurable than Hunter units. Nonetheless, configuring Hunter units proves far from impossible, though. Configuring Hunter thermostats prove perhaps not as "intuitive.": The formal user manuals provided by Hunter thus may prove more keenly necessary for their thermostats' configuration.

Getting personal help online from Hunter may prove somewhat difficult (that may have changed recently). A few years ago, I called customer support: A woman answered my wiring question very satisfactorily. (I noted a jumper wire connect to the terminals of my old manual thermostat--she indicated that the jumper proves unnecessary in Hunter units.) Hunter phone support hours prove somewhat limited--they're similar to traditional office hours.

As with most programmable thermostats, the Hunter is a PRC (Chinese)-fabricated general-purpose consumer circuitry device. As such, it's (overly) intended to be wired and configured by the user to provide correct function for many particular and compatible HVAC brands/models. Given the particular installation that may perhaps prove difficult. Given the general-purpose nature of such thermostats, a simple installation sheet of instructions can't always offer sufficient and correct answers.

Without the particulars of your HVAC system and thermostat wiring, it proves very difficult in some cases for Fixya and other DIY sites to provide correct answers. (Most DIYers ultimately do succeed with install and use of programmable thermostats, though.)

"Proust" thanks you for getting this far!: Perhaps some of my particular solutions here do prove useful to some of you--more nit-picking, detailed work and anecdotes (intended for specific brands and models) needs to be offered in this area....

Mar 17, 2013 | Dryers

1 Answer

I bought a Hunter 44155C programmable thermostat to replace my Carrier non-programmable one. The wiring on the carrier is: W- white wire O- no wire G- green wire R- red wire C- blue wire Y- yellow...


Hello,You need RH/RCjumper together=red wire...C=blue wire...G=green wire...Y=yellow wire...W=white wire...O/B unused for reversing valve for heat pump.Hope that helps. : )

Nov 10, 2010 | Hunter Heating & Cooling

1 Answer

Carrier 6 wire, installed programmable hunter ther...


Is this a heat pump? Look in the thermostat. You should have something like the following.
Red wire to R terminal
Green wire to G terminal
Yellow wire to Y terminal
White wire to W or W1
Blue or Orange wire to the O or B terminal
Brown wire to C terminal.

Let me know what you have in the thermostat. The wire colors are not always the same.

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1 Answer

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w--white--heat........g--green--fan..........y--yellow--cool....r--red--powerx---b----o--are for heat pumps...

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I am trying to wire a hunter 44550 to furnace. Old programable not much help. Hi have 5 wires comming from wall. Black, red, yellow, white, blue, Furnace has W, RH, RC, G, Y/Y1, and O/B terminal Any idea...


Depending on where the wires were connected on the old thermostat, would be the best place to start, but if that is not an option you could try to trace the wires back to your furnace and see where they connect to. It appears you have either an oil fired furnace, or a single stage heat pump. If you need more assistance please just provide type of heat used. Hope this helps

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on the back of the packaging for the HUNTER MODEL 44155C it states that it is not compatible with heat pumps

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1 Answer

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you probably purchased a 4 wire thermostat which we call heat/cool you stated you have 6 wires which signifies a heat pump you have to purcahase a heat pump thermostat and then write down the color of the wires to there related spots example...yellowe-y red-r white- w and so forth also before you do this kill the power the voltage typical for residential is only 24v's but if the wires touch you could blow a fuse

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Thanks,

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Go to the hunter web site. They will have the proper wiring diagrams on the site. If you cannot do that pick up a basic wiring book at your local electric parts supplier. the place you got the thermostat would be a good start. I do know that menards has some books in the electric area that would be a great help to you. You also will need to be sure that the thermostat is able to handle both air and heat. many only do heat. If this does not help let me know and I will try and get more information to you

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6 Answers

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hi
this site as the owners manual you can download in pdf . if this helps you out .
Programmable thermostats at discount prices at hunter-thermostats.com.


riz.

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