THERMOSTAT LOCATION
Proper location of the heavy duty room thermostat is very important to insure acceptable performance. The following general rules will help determine proper location:
1.It is very important to be sure that the thermostat is in an area where air circulates around it freely.
2.Never install the thermostat on or near an outside wall.
3.Do not locate the thermostat near windows or doors, or in any drafty area.
4.Don’t install the thermostat where it will be affected by “false” heat sources (such as direct sunlight, a stove or any appli- ance exhaust, steam lines, etc.).
5.Mount the thermostat on a post or a partioning wall, but be sure that there are no pipes, duct work or heat sources in that wall or directly behind it.
6.If the electrical conduit leads into a cooler or warmer room, plug the hole around the wires with
If the thermostat is used with unit heaters, the following sugges- tions for locating the thermostat may be helpful (see fig. 2).
1.Position A in fig. 2 is acceptable if the thermostat is close enough to the unit heater so that the return air to the heater flows over the thermostat.
2.Position B is acceptable if it is not necessary to make frequent adjustments of the dial setting.
Concrete
Plaster/
Drywall 
Junction Box 
Themostat
Conduit 
inside wall
Conduit along wall
WALL INSTALLATION
The mounting plate for this thermostat has two holes 35/16”apart for attaching the control on a standard switch box.
Figure 1
Ceiling
Post
|
| Partition wall |
Unit |
| or post directly |
| B | behind unit |
|
|
3. | Position C is acceptable if it is sufficiently far from the heater | D | C | A |
| that air flowing over the thermostat is not much above the |
|
| Return Air |
| average room temperature. |
|
| |
|
|
|
| |
4. | Position D is not acceptable because the post may prevent |
|
| Floor |
| air from circulating over the thermostat. |
|
| |
|
|
|
|
Figure 2
WIRING
All wiring should be done in accordance with local and national electrical codes and ordinances.
Follow the wiring instructions provided by the heating/cooling equipment manufacturer. If none are offered, a typical circuit application is shown at right.
Fan or Water | Room | Manual |
Thermostat | Switch | |
Solenoid |
|
|
R | B | Heating |
| W | Cooling |
|
| Line |
OPERATION
To set the thermostat, simply move the dial so that the indicating line on the case points to the desired temperature setting on the dial.
Indicating
Line
70
60
80
