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Figure 49. Comfort Sync A3, Communicating Indoor Unit with 24VAC Air Conditioner
HD
Display
Subbase
Figure 50. Comfort Sync A3 with Equipment Interface Module (EIM), 24VAC Indoor Unit and Communicating
508364-01
DATS (Optional)
HD
Smart Hub
Display
Subbase
Smart Hub
Interface Module
SETUP NOTE:
CUT Y1-Y2 ON-BOARD LINK FOR
2-STAGE OUTDOOR UNITS
(NON-COMMUNICATING)
24VAC Outdoor Unit
Communicating
(1 - or 2-Stage
Indoor Unit
Air Conditioner)
Communicating
Outdoor Unit
24VAC
1- or 2-Stage
Non-Communicating
Equipment
Indoor Unit
Outdoor Unit
Issue 2346
OATS (Optional)
If jumber is present between
R and W2 on indoor unit terminals then
removed it. Installed jumper
may cause erroneous Alert Code 125.
Page 37 of 74
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