White Rodgers 230-22 Installation Instructions

Open on Rise – Remote Bulb

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 controls have open on rise switch action and are de­signed for low or line voltage heating applications with ranges
to cover such applications as curing rooms, incubators, anti­freeze control for stock watering tanks or orchards, developing
tank, aquarium, swimming pool, etc. If the controlled medium is
a liquid, the liquid must not be corrosive to copper.

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.

If the manufacturer of the heating equipment has recommended
a location for the control, then follow his instructions. If none is
made, the following suggestions should be observed.

The switch mechanism of this control may be mounted in any
convenient location and the capillary should be led over a path
that will protect it from injury.

Excessive capillary should be coiled and secured close to the
switch mechanism.

The temperature sensitive element or “bulb” should be located
in the average temperature of the controlled area.

If intended to operate from air temperature, the bulb should be
located in a place where there is good circulation of air. The bulb
should be held away from the mounting surface with screw eyes
or brackets.

When intended to be immersed into a water circulating sys-
tem, such as the heating system for a swimming pool, observe
the cautions on overrun temperatures shown under SPECIFI-

TEMPERATURE CONTROL

Fixed or Adjustable Differential

INST ALLA TION INSTRUCTIONS

DESCRIPTION

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

INSTALLATION

CATIONS. Wells and packing nuts are available for permitting
the bulb to sense the water temperature.

If the control is to be used with a photographic processing
tank, the copper element may cause contamination if immersed
directly into the solution, resulting in a possible fogging of the
film. This may be overcome by inserting bulb into a thin stainless
steel well or plastic tubing having a slide fit over the bulb, or the
bulb may be clamped to the outside surface of the tank and then
covered with insulation to reduce the effects of variations in
room temperature.

Since the copper bulb may be harmful to the fish in an aquarium,
the bulb should be inserted in a thin, snug-fitting, stainless steel
well or plastic tubing for this application.

When the control is to be installed out of doors, such as an anti-
freeze control for stock watering tanks or orchards, the
control must be put in some rain-proof enclosure to keep water
off the switch. There should also be a good ground connection
between the case of the control and earth.

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. 37-1066B

Replaces 37-1066A & 37-9059

9550

WIRING

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

If the manufacturer of the heating equipment has supplied a
wiring diagram, follow such recommendations.

These diagrams show the general use of these controls.

TEMPERATURE

CONTROL

TYPE

230-19

TEMPERATURE

CONTROL

HOT

LINE

N

LOAD

SETTING THE CONTROL

CONTROLS WITH ADJUSTABLE DIFFERENTIAL

The movable indicator points to the temperature at which the
contacts open. The fixed indicator points to the temperature at
which the contacts close. The difference between these two
indicators is the differential.

To set the control:

1. Use a screwdriver in the adjusting slot (A) on the front of the
control to turn the dial so that the fixed indicator (B) points
to the temperature at which the contacts will close.

2. Turn the differential adjusting screw (C) until the movable
indicator (D) points to the temperature at which the contacts
will open.

“B” Fixed indicator

“F” Stop tab

“A” Adjusting

slot

(cut-in point)

“C” Differential adjusting

screw

“D” Movable indicator

(cut-out point)

“E” Stop screw

HIGH
LIMIT

TRANSFORMER

HOT

24VAC

LOW VOLTAGE
GAS VALVE

LINE

N

CONTROLS WITH A FIXED DIFFERENTIAL

The indicator (B) points to the temperature at which the contacts
open.

To set the control:

Use a screwdriver in the adjusting slot (A) on the front of the
control to rotate dial until the desired temperature at which
the contacts will open is positioned directly under the
indicator (B).

“F” Stop tab

“E” Stop screw

“B” Fixed

indicator

“A” Adjusting

slot

CONTROLS WITH ADJUSTABLE STOPS

CAUTION

Setting stop higher than control being replaced could
cause personal injury and/or property damage.

1. Loosen stop screw (E) with enclosed wrench.

2. Set dial to original equipment manufacturer's specification.

3. Without moving the dial, move stop tab (F) against indica­tor.

4. Retighten stop screw (E).

2