Emerson White Rodgers TYPE 151 Operating Manual
Emerson White Rodgers TYPE 151 ROOM THERMOSTAT Cooling Service, External Dial INSTALLATION INSTRUCTIONS
These room thermostats have been designed for controlling cooling equipment operating on line voltage with heavy electrical loads. They are suitable for operation of unit coolers, room coolers, etc., or any similar refrigeration application requiring a heavy duty room thermostat. Models are available with various ranges for meeting the needs of almost any application.
THESE CONTROLS MUST BE INSTALLED BY A QUALIFIED INSTALLER.
Do not exceed the specification ratings. All wiring must conform to local and national electrical codes and ordinances. This control is a precision instrument, and should be handled carefully. Rough handling or distorting components could cause the control to malfunction. This control has been accurately calibrated at the factory. Any attempt to calibrate this control will void the White- Rodgers warranty.
Emerson White Rodgers TYPE 151 Installation
The proper location of a heavy duty room thermostat is very important to assure good performance. The following general rules will help in determining the proper location:
- Make sure that it is in a place where air circulates around it freely. This is important.
- Never install it on or near an outside wall.
- Keep it away from windows or doors.
- Don’t locate it too close to a strong light or any other false source of heat such as direct sunlight, steam lines, etc.
- Mount it on a post or a partitioning wall, but make sure that there are no pipes or duct work in that wall or directly behind it.
- If the electrical conduit leads into a cooler or a warmer room, plug up the space around the wires in the conduit with rock wool. Figure 1
If the thermostat is used with unit coolers, the following suggestions may help. (See Fig. 2).
- Position “A” is good if it is sufficiently close to the unit cooler so that the return air to the cooler flows over the thermostat.
- Position “B” is good if it is not necessary to make frequent adjustments of the dial setting.
- Position “C” is all right if it is sufficiently far from the cooler that air flowing over the thermostat is not much above the average room temperature.
- In general, position “D” is not advisable because the post may prevent air from circulating over the thermostat.
Emerson White Rodgers TYPE 151 Wiring
All wiring should be done in accordance with local and national electrical codes and ordinances. If the manufacturer of the cooling equipment has supplied a wiring diagram, follow the manufacturer’s recommendations. The following diagrams show the general use of these controls.
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|Title||: Emerson White Rodgers TYPE 151 Operating instructions Manual|
|Pages||: 4 Pages|
|File Size||: 1 MB|