Doit 474053 Low Voltage Thermostat Installation Guide
KEEP THIS
AREA CLEAR
OF WIRES!
G
RC
B
Moveable
yellow jumper wire
O
THERMOSTAT
WIRING
W
NOTE: Remove factory-
installed jumper between
RC and RH terminals for
this application.
RH
A
Y
RH
TRANSFORMER
W
B
A
O
Y
G
RC
TRANSFORMER
Hot
Heat
Relay
Compressor Fan
Relay Relay
Hot
120 VAC
Neutral
* *
*
24 VAC
24 VAC
120 VAC
Neutral
SYSTEM
Terminal energized
in cooling
Terminal energized
* *
in heating
*
Figure 4. Typical wiring for two-transformer heating/cooling system
17
| General | Details |
|---|---|
| Name | Doit 474053 Low Voltage Thermostat Installation Guide |
| Make | DOIT |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.12 MB |
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