Ask Experts Questions for FREE Help !
Ask
    nicklynn2's Avatar
    nicklynn2 Posts: 9, Reputation: 1
    New Member
    		  
    #1

    Feb 5, 2009, 08:51 AM
    Am I Wiring a thermostat with Heat Pump correctly
    My system has a Heat Pump and Emergency heat back up. I want to replace the thermostat but need help, as I don't work on heat pumps very often. Ok, her is the color wires I have coming out of the wall and connected to my old thermostat.
    Red wire connected to (R)
    Green wire connected to (G)
    Orange connected to (O)
    White connected to (W2)
    Yellow connected to (Y)
    Black connected to (E)
    This is how it is hooked up now and works fine. It is digital and the one I want to put in is also digital, non programmable.
    Here is the new thermostat hook up posts
    (W2)
    (E)
    (O/B)
    (R)
    (L)
    (G)
    (C)
    (Y)
    Can someone tell me how to properly wire this so it works. The old and new one both have batteries to install in them, can we wire to run on 24volt and have batteries as only back up too? Any help would be greatly appreciated.
    dac122's Avatar
    dac122 Posts: 463, Reputation: 17
    Full Member
    		  
    #2

    Feb 5, 2009, 03:01 PM

    Please post make/model of old and new thermostats.
    nicklynn2's Avatar
    nicklynn2 Posts: 9, Reputation: 1
    New Member
    		  
    #3

    Feb 6, 2009, 06:58 AM
    The old model is a LUXPRO, Model DM2110 Ver 1.5 or 210504D
    The new one is a White-Rogers Economy 1F79-111 Prop Spec #70h0W
    Thanks
    I will be waiting for your answer
    dac122's Avatar
    dac122 Posts: 463, Reputation: 17
    Full Member
    		  
    #4

    Feb 6, 2009, 07:34 AM

    Try this cross reference chart posted by LuxPro
    nicklynn2's Avatar
    nicklynn2 Posts: 9, Reputation: 1
    New Member
    		  
    #5

    Feb 6, 2009, 07:51 AM
    Thanks, I will try it. If any one else has any suggestions I would appreciate it too.
    nicklynn2's Avatar
    nicklynn2 Posts: 9, Reputation: 1
    New Member
    		  
    #6

    Feb 11, 2009, 07:44 AM

    I appreciate the referance sheet you sent me, but it does not refer to the model of LUXPRO that I have. If anyone else knows the wiring hook up let me know A.S.A,P.
    Thanks
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #7

    Feb 11, 2009, 08:02 AM

    L is probably an indicator. The state of O/B probably needs to be programmed (flips heat and cool).

    (C), depending on the tstat may or may not be required.
    (C) may be labeleed in the furnace. It may not. It can be found. Between (C) and (R) there will be 24 VAC all the time.

    These are generic instructions without looking into the details.
    nicklynn2's Avatar
    nicklynn2 Posts: 9, Reputation: 1
    New Member
    		  
    #8

    Feb 11, 2009, 11:19 AM
    On the LUXPRO stat that's up now there is no (C) post for a wire to go to! Only a (R) so what do you match the red up to to get the 24 volts? Also the (L) for indicator, what is that for? The Light on the unit? Can you look at the original post I put up and see if you can figuere the wiring out? Its hooked up now to the LUXPRO and works and I just want to install the other one and want to know how to wire it. Please help.
    Thanks K.I.S.S.
    Nick
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #9

    Feb 11, 2009, 11:53 AM

    Post the link to the manuals for the new and old stat.

    All the wires add up except L and C.

    L is a service light. What service. Who knows. Could be "air filter is dirty".

    O/B is a programmable terminal. It's whether the reversing vale is normal or reverse acting.

    (C) may be OPTIONAL if the stat is battery powered.
    (C) can be found by looking at the furnace wiring if not labeled at the furnace.

    We can deal with that when you/us understand where we are coming from.

    See if L is connected at the furnace. See if there is a furnace function for L in the furnace manual.
    nicklynn2's Avatar
    nicklynn2 Posts: 9, Reputation: 1
    New Member
    		  
    #10

    Feb 11, 2009, 02:55 PM
    I will check it out and let you know Thursday after 11AM when I get a chance to look.
    Thanks again!
    Nick
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

New Thermostat Wiring, heat pump not kicking on [ 12 Answers ]

OK so I'm looking for some help as to what I may be doing wrong here. I marked all the wires before I removed the old wall mount. Once I removed the old wall mount I found another wire in the wall that seems to serve no purpose. The wires on the old thermostat were very simple. W_G_R_O_Y... and...

Wiring a Honeywell RTH7400 Thermostat for heat pump [ 2 Answers ]

I'm replacing a 24 year old Bryant heat pump thermostat with two mercury switches, part number P271-3457 with a Honeywell RTH7400. It controls a heat pump/air conditioner with electric thermal storage (equivalent to electric resistance backup) as second stage heating. The Honeywell manual and...

NO HEAT! Janitrol heat pump and AC system. Changing to Lux Thermostat. Wiring issue. [ 11 Answers ]

I have a Janitrol A/C and heat pump system. I replaced the thermostat with a Lux T9000LC The A/C works fine, but the heater does not. I have it wired as follows: G - Green Y - Yellow W - White RH - Pink B -

Thermostat wiring for heat pump [ 1 Answers ]

I am installing a Honeywell RHT7000 thermostat. My wiring harness has a r, o,y,g,c, and w1. On the old unit e and W1 were jumpered. What do I do when the instructions say to contact a contractor if the new wiring scenario has a w1?

Heat pump thermostat wiring [ 1 Answers ]

I have pored over the thermostat wiring messages on this forum, but I still have a question. I am installing a RiteTemp 8085C to replace a Janitrol thermostat for my Goodman heat pump. The old thermostat was wired as follows: Red to R Orange to O Yellow to Y Green to G Blue to C White...

View more questions Search