wiring for an old Rheem heat pump to T-stat


  #1  
Old 07-21-19, 12:02 PM
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Question wiring for an old Rheem heat pump to T-stat

I need a basic wiring diagram for an old Rheem heat pump. Wiring connecting to T-stat to Air handler to Heat Pump.

Tstat: B (blue) O (Orange) G (Green) Y (Yellow) W (White) R-Rc (Red)
Air Handler: R C G W1 W2 Y
Heat Pump: Y B C R D

This what I have wrote down. My question is how or where should i get my common connected from Tstat-Air-Heat?
T-stat -----------------------> Air -------------------------------------> Heat
R jump Rc--------------------- R---------------------------------------R (Red)
W --------------------(W1 (wht/blk - W2 (wht/blu) -----------------D (purple)
Y ---------------------------------Y----------------------------------------Y (yellow)
G----------------------------------G
O (Not used)
B ----------------------------------------------------------------------------B (blue)
C - ?????????????????? C (brown) -----------------------------C (brown)
My T-Stat doesn't have a "C"
 
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Old 07-21-19, 12:23 PM
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Tstat C connects to the same spot as heat pump C.

You will have 2 wires on the air handler C.
 
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Old 07-21-19, 09:34 PM
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Thermostat ----------- air handler ---------- condenser
------B -------------------------------------------------> B
------G ----------------------> G
------Y -----------------------> Y ---------------------> Y
------W ----------------------> W1 -------------------> D ?
----- R/Rc ------------------> R ----------------------> R
------ C ---------------------> C ----------------------> C

The confusing part is the orange wire on O at the stat. If the orange is not connected at the air handler...... yes..... you can use that orange wire as a common between the stat C and the air handler C.
 
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Old 07-21-19, 04:50 PM
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The Tstat doesn't have a "C". This what is have: B (blue) O (Orange) G (Green) Y (Yellow) W (White) R-Rc (Red)
 
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Old 07-21-19, 05:32 PM
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Since my Tstat doesn't have a "C", can I use orange "O" to be "common?"
 
 

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