11A79-2
WHITE-RODGERS
Direct Immersion
Hot Water Control
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 control is designed for use on hot water heating systems.
It has a coiled element that is immersed directly into the boiler water. This feature gives an unusual speed of response to rapid changes of water temperature thereby preventing thermal lag.
DESCRIPTION
This control has
THIS CONTROL MUST BE INSTALLED BY A QUALI- FIED 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
Shut off main gas to heating system until installa- tion is complete.
Label all wires prior to disconnection when ser- vicing controls. Wiring errors can cause improper and dangerous operation.
Following installation or replacement, follow ap- pliance manufacturer's recommended installa- tion and/or service instructions to insure proper operation.
!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- age. Higher voltage will damage control and could cause shock or fire hazard.
INSTALLATION
If the boiler manufacturer recommends a control location, follow such recommendations. If none is offered, the following information gives suggested locations.
For high limit service, the control should be located in the hottest part of the boiler. This is usually at the top of the boiler. A high limit control should not be located in the section of the boiler that contains the heat exchanger that supplies domestic hot water.
For low limit or operating service, the control should be located so that it responds to the temperature of the section of the boiler that heats domestic hot water.
When used as a circulator control, it may be located near the boiler outlet or riser.
When used as a combination low limit and circulator control, it should be located the same as suggested for low limit service.
When tightening the control into the boiler, care should be taken to apply all leverage to the hexagonal nut only to avoid damage to the diaphragm or control mechanism.
| PART NO. | |
EMERSON ELECTRIC CO. |
| |
9797 REAVIS ROAD | Printed in U.S.A. | Replaces |
R ST. LOUIS, MISSOURI |
| 9520 |
