WIRE THERMOSTAT TO SYSTEM
For best electrical connection, use solid 18 gauge wire. If you must use stranded wire, tin the wires with solder to insure a good electrical connection.
1.Strip wires back 1⁄4”.
2.Using
3.Tighten terminal block connector screw.
4.Repeat steps 2 and 3 for each wire.
Insert stripped wires into terminal blocks,
then tighten terminal screws.
|
|
| 1 | 2 |
|
|
| O F F | |
W7 | W R | L | C |
|
See | G |
|
|
|
O |
|
|
| |
System | Y |
|
|
|
B |
| Anticipation | ||
Function |
| |||
|
| |||
Table |
|
| Selection | |
|
| Switches | ||
|
|
|
Pull wires through this opening | Setpoint switch |
| (without knob) |
Figure 3. Thermostat base with typical wiring
!CAUTION
To prevent electrical shock and/or equipment damage, disconnect electrical power to system at main fuse or circuit breaker until installation is complete.
NOTE
This typical wiring diagram shows only the terminal identification and wiring hookup. Always refer to wiring instructions provided by equipment manufacturer for system hookup.
All wiring should be installed in accordance with local and national codes and ordinances.
Thermostat
Control
Circuit
THERMOSTAT
B | O | Y | G | W | C | L | R | SYSTEM |
|
|
|
|
|
|
|
| |
Reversing |
| Compressor |
| Auxiliary |
| Malfunction |
|
|
|
| Heat |
|
|
| |||
Valve* |
| Contactor |
|
| Switch |
|
| |
|
| Relay |
|
|
| |||
|
|
|
|
|
|
|
| |
Reversing | Fan |
|
|
|
| Hot | ||
|
|
| 24 VAC | 120 VAC | ||||
| Valve** |
| Relay |
|
|
| ||
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
| Neutral |
|
|
|
|
|
|
| TRANSFORMER |
*Reversing valve is energized when the System Switch is in the HEAT position
**Reversing valve is energized when the System Switch is in the COOL position
Figure 4. Typical wiring diagram
ATTACH SETPOINT KNOB AND COVER
1.After thermostat base is mounted on wall, remove cardboard insert from setpoint switch.
2.Carefully press setpoint knob onto setpoint switch (see fig. 5).
3.Carefully snap cover onto thermostat base. Refer to the OPERATION section for instructions on setting the thermo- stat for desired operation.
Setpoint
Knob Setpoint
Switch
G |
O |
Y |
455055 | 60 | 62 | 64 |
| |||
40 |
|
|
| ||||
|
|
|
|
| 65 | ||
90 |
|
|
|
|
| ||
|
|
|
|
|
| ||
|
|
|
|
|
| 66 | |
88 |
|
|
|
|
|
| 67 |
86 |
|
|
|
|
|
| 68 |
84 |
|
|
|
|
|
| 69 |
83 |
|
|
|
|
|
| 70 |
82 |
|
|
|
|
|
| 71 |
81 | 80 |
|
|
|
|
| 72 |
|
|
|
|
| 74 | ||
|
| 79 | 78 |
|
|
| 73 |
|
|
|
| 75 | |||
|
|
| 7776 |
|
G | 455055 |
O | |
Y | 40 |
90 |
|
|
|
88 |
|
|
|
86 |
|
|
|
84 |
|
|
|
83 |
|
|
|
82 |
|
|
|
81 | 80 | 79 |
|
| 78 | ||
|
| ||
|
|
|
60 | 62 | 64 |
|
| 65 | ||
|
| ||
|
|
| |
|
|
| 66 |
|
|
| 67 |
|
|
| 68 |
|
|
| 69 |
|
|
| 70 |
|
|
| 71 |
|
|
| 72 |
|
|
| 73 |
|
| 74 | |
7776 |
| ||
|
| 75 |
G |
|
|
|
| O |
|
|
|
| Y |
|
|
|
| B |
50 | 60 | 70 |
|
|
| 80 |
| ||
|
| 90 | ||
|
|
| ||
|
|
|
|
455055 | |||
40 |
|
| |
90 |
|
|
|
88 |
|
|
|
86 |
|
|
|
84 |
|
|
|
83 |
|
|
|
82 |
|
|
|
81 | 80 | 79 |
|
| 78 | ||
|
| ||
|
|
|
60 | 62 | 64 |
|
|
| 65 | |
|
|
| |
|
|
| 66 |
|
|
| 67 |
|
|
| 68 |
|
|
| 69 |
|
|
| 70 |
|
|
| 71 |
|
|
| 72 |
|
|
| 73 |
|
| 74 | |
7776 |
| ||
|
| 75 |
A
B
C
Figure 5. Attach setpoint knob and cover
3