White Rodgers installation instructions 241-2 & 1609 Series, Installation Instructions

241-2 & 1609 Series

WHITE-RODGERSRefrigeration Temperature Controls

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.

This hydraulic action temperature control is applicable for all types of commercial or industrial refrigeration applications. This control will close contacts on rise in temperature and open them on a fall in temperature.

The 241-2 control has a two-circuit contact structure which will simultaneously close two circuits on a rise of temperature and open them on a fall of temperature.

DESCRIPTION

This two-circuit control is intended for use on zoning systems where all controls operate a common compressor but operate a separate solenoid refrigerant valve in each zone.

!WARNING

FIRE/SHOCK HAZARD

Disconnect power to system at main fuse or circuit breaker box before installation.

Do not use on circuits exceeding speci- fied voltages.

CAUTION

FREEZE HAZARD

Install low temperature limit device.

System malfunction may cause freeze damage.

PRECAUTIONS

THIS CONTROL MUST BE INSTALLED BY A QUALIFIED INSTALLER.

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 re-calibrate this control will void the White-Rodgers warranty.

If in doubt about whether your wiring is millivolt, low or line voltage, have it inspected by a qualified heating and air condi- tioning contractor or a licensed electrician.

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

Following installation or replacement, follow appliance manu- facturers’ recommended installation/service instructions to in- sure proper operation.

The switch mechanism of this control may be mounted in any location, provided that the temperature and humidity of the air in which it is located do not cause a condensation on the switch parts.

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

Capillary tubing should be led over a path that protects it from damage from blows, cuts, etc., and should be installed without kinking or twisting. The tubing should be attached to some surface at frequent intervals along its length, and should not

INSTALLATION

hang loosely. Excess tubing should be coiled and secured at a convenient protected location close to the switch mechanism.

The bulb should be handled with reasonable care, as a dent or sharp bend may change the calibration and cause the control to cycle at a temperature different from the dial setting.

WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS RD., ST. LOUIS, MO. 63123-5398
(314) 577-1300, FAX (314) 577-1517	Printed in U.S.A.
9999 HWY. 48, MARKHAM, ONT. L3P 3J3
(905) 475-4653, FAX (905) 475-4625

PART NO. 37-1104F

Replaces 37-1104E 9909