WHITE-RODGERS
TYPE 151
ROOM THERMOSTAT
Cooling Service, External Dial
INSTALLATION INSTRUCTIONS
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
These room thermostats have been designed for control- ling cooling equipment operating on line voltage with heavy electrical loads. They are suitable for operation of unit coolers, room coolers, etc., or any similar refrigera- tion application requiring a heavy duty room thermostat.
Models are available with various ranges for meeting the needs of almost any application.
W
H
I T
90
7080
5060
40
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 compo- nents 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.
PRECAUTIONS
CAUTION
To prevent electrical shock and/or equipment damage, disconnect electric power to system, at main fuse or circuit breaker box, until installation is complete.
WARNING
Do not use on circuits exceeding specified volt- ages. Higher voltages will damage control and could cause shock or fire hazard.
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:
1.Make sure that it is in a place where air circulates around it freely. This is important.
2.Never install it on or near an outside wall.
3.Keep it away from windows or doors.
4.Don’t locate it too close to a strong light or any other false source of heat such as direct sunlight, steam lines, etc.
5.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.
6.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.
INSTALLATION
CONCRETE
PLASTER
JUNCTION BOX 
THERMOSTAT
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
| |
EMERSON ELECTRIC CO. |
|
9797 REAVIS RD., ST. LOUIS, MO. 63123 |
|
(314) | Printed in U.S.A. |
| |
9999 HWY. 48, MARKHAM, ONT. L3P 3J3 |
|
(905) |
|
PART NO.
Replaces
