Need help with Wiring Ecobee4 (2stageheat/1stage cool/Humid)
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Need help with Wiring Ecobee4 (2stageheat/1stage cool/Humid)
Looking for help with new ecobee4 setup. Here is the equipment:
Rheem Two-stage Heat/one-stage Cool Gas Furnace
AprilAire 560 Evap. Humid
Questions: How do (or can) I connect the Ecobee4 to control everything and eliminate the Humidistat…in essence I have 7 available wires…and I am wondering if I NOW can get a Common wire back in the mix to avoid the extra Power Kit setup…
It seems that there were 5 wires going to HVAC Thermostat and 2 wires to the Humidistat control (next to each other on wall). The C (common) terminal on the Thermostat was not used (batteries in Thermostat)
Connections before beginning:
Thermostat to Furnace
C -->
G --> G
R --> R
Y --> Y/Y2
Y2
W --> W
W2 --> W2
Furnace to Outside AC
C --> [outside unit]
Y/Y2 --> [outside unit]
Humidistat to Humidifer
Wire 1 --> Transformer ŕ Solenoid
Wire 2 -->ŕ Solenoid (bypassing transformer)
Any suggestion would be great…I’ll post a couple of pic if they help.
Thanks
Rheem Two-stage Heat/one-stage Cool Gas Furnace
AprilAire 560 Evap. Humid
Questions: How do (or can) I connect the Ecobee4 to control everything and eliminate the Humidistat…in essence I have 7 available wires…and I am wondering if I NOW can get a Common wire back in the mix to avoid the extra Power Kit setup…
It seems that there were 5 wires going to HVAC Thermostat and 2 wires to the Humidistat control (next to each other on wall). The C (common) terminal on the Thermostat was not used (batteries in Thermostat)
Connections before beginning:
Thermostat to Furnace
C -->
G --> G
R --> R
Y --> Y/Y2
Y2
W --> W
W2 --> W2
Furnace to Outside AC
C --> [outside unit]
Y/Y2 --> [outside unit]
Humidistat to Humidifer
Wire 1 --> Transformer ŕ Solenoid
Wire 2 -->ŕ Solenoid (bypassing transformer)
Any suggestion would be great…I’ll post a couple of pic if they help.
Thanks
Last edited by PJmax; 09-21-18 at 10:35 PM. Reason: cropped/enlarged/reoriented pics
#2
Welcome to the forums.
A few little glitches here........
1) What model thermostat is that old one ?
2) The wire colors on the stat do not all match the furnace colors. That suggests splices.
...... Will need a picture of the splices.
The Ecobee can replace the old stat and run the humidifier.
You will need 7 wires from the furnace to the stat.
A few little glitches here........
1) What model thermostat is that old one ?
2) The wire colors on the stat do not all match the furnace colors. That suggests splices.
...... Will need a picture of the splices.
The Ecobee can replace the old stat and run the humidifier.
You will need 7 wires from the furnace to the stat.
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Yes...there are splices...I tried to describe the connections in the post:
The five wires that you see on the thermostat (White-Rogers 1F81-51) go (via splice) to the Furnace board as follow: (these are marked not by color, but from the terminal to terminal designation)
G --> G
R --> R
Y --> Y/Y2
W --> W
W2 --> W2
the two wires from the humidistat go directly to the Humidifier with one of them split to attach to a dedicated transformer (there are no other connections on that transformer.
I see NO other transformer in the system...
All splices done just outside the furnace...and I'll try to attach a pic...but it's a mess...
The five wires that you see on the thermostat (White-Rogers 1F81-51) go (via splice) to the Furnace board as follow: (these are marked not by color, but from the terminal to terminal designation)
G --> G
R --> R
Y --> Y/Y2
W --> W
W2 --> W2
the two wires from the humidistat go directly to the Humidifier with one of them split to attach to a dedicated transformer (there are no other connections on that transformer.
I see NO other transformer in the system...
All splices done just outside the furnace...and I'll try to attach a pic...but it's a mess...
#4
Ok..... then since you know the splices.....
G --> G ---> G
R --> R ---> Rc
Y --> Y/Y2 ----> Y1
W --> W ----> W1
W2 --> W2 ----> W2
Convert one of the humidifier wires from the furnace to the h'stat for C use.
The other wire will connect to ACC+ at the stat and go directly to the humidifier.
The second humidifier wires goes to the C terminal at the furnace. That second transformer will no longer be used for the humidifier. The humidistat will no longer be needed either.
G --> G ---> G
R --> R ---> Rc
Y --> Y/Y2 ----> Y1
W --> W ----> W1
W2 --> W2 ----> W2
Convert one of the humidifier wires from the furnace to the h'stat for C use.
The other wire will connect to ACC+ at the stat and go directly to the humidifier.
The second humidifier wires goes to the C terminal at the furnace. That second transformer will no longer be used for the humidifier. The humidistat will no longer be needed either.
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That too was my initial thought...that a one wire setup would work, leaving me the second wire to then be used for Common...
Out of curiosity, with the previous setup (with no wires going from humidifier/humidistat to furnace, does that mean the humidifier was always on when the humidistat was set to on?
Thanks for the advice!
Out of curiosity, with the previous setup (with no wires going from humidifier/humidistat to furnace, does that mean the humidifier was always on when the humidistat was set to on?
Thanks for the advice!