t7350 honeywell to a tb8220u honeywell wiring questions


  #1  
Old 05-21-14, 12:30 PM
J
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t7350 honeywell to a tb8220u honeywell wiring questions

I had a T7350 honeywell Commercial thermostat.... We upgraded to the TB8220U Honeywell Commercial Thermostat

It is being used in Heat pump mode

On the T7350 the Wiring was as follow
W2...Brown
W1...White
X.....Blue
RC....Red
o/b....Orange
Y1...Yellow
G....Green

On the TB8220u We wired it up the following way... IS this Right?

C....Blue
Y....Yellow
O/b... Orange
RC... Red
G....Green
w1... white
Y2....Brown

Thanks in advance...
 
  #2  
Old 05-21-14, 01:36 PM
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I would put the brown wire on W2 of the new stat.
 
  #3  
Old 05-21-14, 04:33 PM
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http://site.theenergyconscious.com/p...structions.pdf


Move the brown wire to W1 (no W2 terminal present when configured for heat pump)

Set function 170 to 7.
 
 

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