CONVERTIBLE CONTROLS CONT.

NOTE

To convert from Vertical to Horizontal model, remove Knockout Plug and Plate. Remove Hex Nut (inside con- trol) and swing capillary upward into back knockout. Place Knockout Plate beneath Hex Nut on back of control and tighten Hex Nut (inside control). If bottom knockout is not used for wiring, insert Knockout Plug.

HEX NUT

 

MOUNTING STEM

KNOCKOUT PLUG

 

CAPILLARY

KNOCKOUT PLATE

 

BULB

 

Convertible Control converted to Vertical Model.

EXTENDING CAPILLARY

Some controls have excess stored capillary which may be extended for use with an extended shank well. Use reason- able care when straightening and forming the capillary.

With the capillary fully extended, the bulb should slide all the way to the end of the well.

INSTALLATION

If the boiler manufacturer recommends a control location, then follow such recommendations. If none are offered the following are suggested locations.

For high limit service, the control should be located in the hottest part of the boiler. This is usually near the top of the boiler. A high limit control should not be in the same section of the boiler that contains the heat exchanger that supplies domestic hot water.

For low limit or operating service, the control should be so located that it responds to the temperature of that 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 on a combination low limit and circulator control, it should be located the same as suggested for low limit service.

To remove the well from the control, loosen set screw in the large nut, then slide the well off which exposes the bulb. Screw the well into the proper tapping. Slide the bulb back into the well, making sure that the bulb enters the well as far as it will go. Tighten the set screw.

CAUTION

Do not dent or bend the bulb as this will prevent it from fitting into the well properly.

WIRING

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

RED BLUE

Refer to the wiring diagram supplied by the boiler or

COMMON

OPEN ON RISE

OF TEMPERATURE

burner manufacturer, or to the suggested circuits included with the primary control. The information below shows the terminals to use for the various applications.

WHITE

CLOSE ON RISE OF TEMPERATURE

Limit Control: When used as either a high limit control or as a low limit control, use the open-on-rise terminals, (red and blue).

This control has a single-pole, double-throw, snap-action switch. The top left-hand terminal (red) is the common terminal. The top right-hand terminal (blue) has open-on- rise switch action. The bottom center terminal (white) has close-on-rise switch action.

Circulator Control: When used as a circulator control, use the close-on-rise terminals, (red and white). Combination Low Limit and Circulator Control: For this application, all 3 terminals are used. The wiring diagram on the next page shows a typical circuit for a hot water system having a boiler with tankless domes- tic coil.

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White Rodgers 1131 installation instructions Extending Capillary, Installation, Wiring, Common Open on Rise Temperature
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1131 specifications

The White Rodgers 1131 is a versatile and reliable thermostat designed for residential heating and cooling systems. Renowned for its user-friendly interface and advanced features, it caters to homeowners looking for comfort and energy efficiency. This model stands out due to its robust construction and ease of use, making it an excellent choice for both modern and traditional HVAC systems.

One of the primary features of the White Rodgers 1131 is its digital display, which provides clear visibility of the current room temperature and set points. This display simplifies temperature adjustments and allows users to monitor their system easily. The thermostat is equipped with a simple programming interface that enables users to set up heating and cooling schedules according to their lifestyle, effectively optimizing energy consumption.

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In summary, the White Rodgers 1131 thermostat is an excellent choice for homeowners seeking a reliable and efficient climate control solution. Its combination of user-friendly programming, dual fuel compatibility, and energy-saving features positions it as a top pick in the thermostat market, ensuring optimal comfort while reducing energy costs. With its robust design and adaptability, the White Rodgers 1131 is engineered to meet diverse residential heating and cooling needs for years to come.
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