White Rodgers 176, 152, 196 User Manual

CAUTION

WHITE-RODGERS

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.

These room thermostats are especially designed for
controlling heating equipment operating on line voltage
with heavy electrical loads. They are suitable for opera­tion of unit heaters, boilers, furnaces, electric heaters,
etc., or any similar application requiring a heavy duty room
thermostat.

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 White­Rodgers warranty.

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.

TYPE 152, 176, 196

ROOM THERMOSTATS

Heating Service, External Dial

INSTALLATION INSTRUCTIONS

DESCRIPTION

W

H

I

T

E

-

R

S

O

R

D

E

G

90

70

80

50

60

40

PRECAUTIONS

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
voltages. Higher voltages will damage control
and could cause shock or fire hazard.

INSTALLATION

CONCRETE

PLASTER

JUNCTION BOX

THERMOSTAT

CONDUIT

INSIDE WALL

CONDUIT
ALONG WALL

WALL INSTALLATION

The mounting plate for this thermostat has two

5

/16”apart for attaching the control on a

holes 3
standard switch box.

Figure 1

WHITE-RODGERS DIVISION

EMERSON ELECTRIC CO.
9797 REAVIS RD., ST. LOUIS, MO. 63123
[phone], FAX [phone]

9999 HWY. 48, MARKHAM, ONT. L3P 3J3
[phone], FAX [phone]

Printed in U.S.A.

PART NO. 37-1116B

Replaces 37-1116-1 & 37-9113

9550

INSTALLATION

If the thermostat is used with unit heaters, the following
suggestions may help. (See Fig. 2).

1. Position “A” is good if it is sufficiently close to the unit
heater so that the return air to the heater flows over the
thermostat.

2. Position “B” is good if it is not necessary to make
frequent adjustments of the dial setting.

3. Position “C” is all right if it is sufficiently far from the
heater that air flowing over the thermostat is not much
above the average room temperature.

4. In general, position “D” is not advisable because the
post may prevent air from circulating over the thermo­stat.

WIRING

All wiring should be done in accordance with local and national electrical codes and ordinances.

CEILING

POST PARTITION

UNIT

B

D

C

RETURN AIR

FLOOR

WALL OR POST
DIRECTLY BEHIND
UNIT

A

Figure 2

SUPPLY

TYPE
11B09

Diagram showing a single room thermostat controlling
several steam or hot water unit heaters. Any number of
unit heaters can be operated from one thermostat pro­vided that the sum of the motor locked rotor currents or
the sum of the full load currents does not exceed the
electrical rating of the thermostat. The Type 11B09
Reverse-acting Surface Hot Water Control is used to
prevent operation of the fans when the steam is off or
when the water temperature is too low for proper heating.

The diagram at the right shows a heavy duty line voltage
room thermostat controlling an electric heater.

TYPE
11B09

ROOM
THERMOSTAT

ROOM
THERMOSTAT

TYPE
11B09

RETURN

TO LINE SWITCH
AND POWER SUPPLY

TO LINE SWITCH
AND POWER SUPPLY

ELECTRIC HEATER

2