NOTE
All wiring diagrams are for typical systems only. Refer to equipment manufacturers’ instructions for specific sys- tem wiring information.
!CAUTION
To prevent electrical shock and/or equipment damage, disconnect electrical power at the main fuse box or circuit breaker until installation is complete.
THERMOSTAT
6 | MV | Y | G | W | RC | RH |
SYSTEM
Heating
System
Hot
|
|
|
|
|
|
|
|
|
|
| 24 VAC |
|
|
|
|
|
|
| 120 VAC |
|
|
|
|
|
|
|
|
|
|
Neutral
TRANSFORMER
From heating system
From 24 VAC transformer
6W
MV | W |
RC | |
| G |
RH | Y |
RH |
|
Thermostat Terminal Connections
Figure 4. Typical wiring diagram for heat only,
6 | MV | Y |
NOTE
RED jumper wire (pro- vided with thermostat) must be connected be- tween thermostat's RH and RC terminals for pro- per thermostat operation with this system.
G
Fan
Relay
JUMPER
WIRE
THERMOSTAT
WRCRH
SYSTEM
Heating
System
|
|
|
|
|
|
|
| Hot |
|
|
|
|
|
|
|
|
|
24 VAC |
|
|
|
|
|
| 120 VAC | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Neutral
TRANSFORMER
From 24 VAC
transformer
From heating system
6 | W |
W | RC |
MV | |
G | G |
RH | Y |
RH | From fan relay |
CONNECT red jumper
wire (provided)
Thermostat Terminal Connections
Figure 5. Typical wiring diagram for heat only,
|
|
|
|
|
|
|
|
| From 24 VAC |
| |
|
|
|
|
|
|
|
|
| transformer |
|
|
6 | MV | Y | G | W | RC | RH | THERMOSTAT | 6 |
|
| W |
SYSTEM |
|
| |||||||||
|
|
|
|
|
|
| MV |
|
| RC | |
|
| Cooling | Fan |
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
| G | ||
|
| System | Relay |
|
|
|
|
| RC | G | |
|
|
|
|
|
|
| Hot |
|
| Y | |
|
|
|
|
|
|
|
|
| Y | ||
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
| 24 VAC | 120 VAC | RH |
|
| From fan relay |
|
|
|
|
|
|
| Neutral |
|
| From cooling system | |
|
|
|
|
|
| TRANSFORMER |
| Thermostat Terminal Connections | |||
|
|
|
|
|
|
|
|
| |||
Figure 6. Typical wiring diagram for cool only,
6MV
NOTE
RED jumper wire (pro- vided with thermostat) must be connected be- tween thermostat's RH and RC terminals for pro- per thermostat operation with this system.
JUMPER
WIRE
THERMOSTAT
Y | G | W RC | RH |
Cooling
System
Fan
Relay
Heating
System
SYSTEM
Hot
|
|
|
|
|
|
|
|
24 VAC |
|
|
|
|
|
| 120 VAC |
|
|
|
|
|
|
|
|
Neutral
TRANSFORMER
From heating system
CONNECT red jumper
wire (provided)
6 |
| W | W |
MV |
|
| RC |
|
| G | G |
| RH | Y | Y |
RH |
|
| From fan relay |
From 24 VAC |
| From cooling system | |
|
|
| |
transformer |
|
|
|
Thermostat Terminal Connections | |||
Figure 7. Typical wiring diagram for heat/cool,
4
