White Rodgers 5D51-78, 5D51-90 installation instructions 5D51-35, -78, Description, Precautions

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5D51-35, -78 & -90

WHITE-RODGERS

Fan & Limit 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 fan and limit control combines, in one enclosure, a fan switch with an adjustable differential which operates the blower in a forced warm air furnace and a limit switch with a fixed differential which automatically shuts off the burner if the furnace temperature exceeds a predeter- mined high point.

DESCRIPTION

A summer fan switch is incorporated in this control to provide a convenient method for manual operation of the fan for air circulation during the summer.

THIS CONTROL MUST BE INSTALLED BY A QUALI- FIED 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 compo- nents 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.

!WARNING

Do not use on circuits exceeding specified volt- ages. Higher voltages will damage control and could cause shock or fire hazard.

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

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.

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

Following installation or replacement, follow appliance manufacturers’ recommended instal- lation/service instructions to insure proper op- eration.

INSTALLATION

Removing Cover

To remove cover from control, grasp cover at top and bottom and pull outward. Grasping the cover by its sides will make removal more difficult.

Location

1.The bimetal element should not be too close to any hot surfaces of the heat exchanger. The element should always be at least 3“ away from any hot surfaces unless the position has been determined acceptable by the furnace manufacturer.

2.If this is a new application, please consult the original equipment manufacturer for proper location.

Mounting, For Flush Mounting (Vertical or

Sloping Surface)

1.Insert the element tube into the bonnet and attach control case with #10 screws. (Two screws, diago- nally located, are sufficient.)

2.Replace control cover after wiring and making any adjustments to the settings.

WHITE-RODGERS DIVISION

 

EMERSON ELECTRIC CO.

 

9797 REAVIS RD., ST. LOUIS, MO. 63123-5398

Printed in U.S.A.

(314) 577-1300, FAX (314) 577-1517

 

PART NO. 37-1558B

Replaces 37-1558-1

9999 HWY. 48, MARKHAM, ONT. L3P 3J3

9714

(905) 475-4653, FAX (905) 475-4625

 

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Contents Installation Precautions5D51-35, -78 DescriptionOperation Setting the DialSummer FAN Operation 5D51-35, -78 et Instructions D’INSTALLATIONPrécautions AttenticautionRéglage DU Cadran UtilisationUtilisation DU Ventilateur EN ÉTÉ Instrucciones DE Instalacion 5D51-35, -78 yDescripcion PrecaucionesAjuste DEL Dial OperacionOperacion DEL Ventilador EN EL Verano

5D51-90, 5D51-35, 5D51-78 specifications

The White Rodgers 5D51 series is a range of high-quality thermostat controls designed for HVAC systems, offering enhanced comfort and efficiency in temperature regulation. Within this series, the models 5D51-35, 5D51-78, and 5D51-90 are particularly notable for their innovative features and reliable performance.

The 5D51-35 is designed for both gas and oil heating, providing flexibility and compatibility across various heating systems. Its intuitive interface allows users to easily set their desired temperatures, with a clear display showing real-time data. One of its standout features is the ability to control a wide range of systems, including single-stage heating, cooling, and even multi-stage systems, enhancing its versatility in different applications.

The 5D51-78 model elevates functionality with additional programmable options. This thermostat can be set to follow specific schedules, automatically adjusting temperatures according to user-defined patterns. This feature not only maximizes comfort but also helps in reducing energy consumption, making it an environmentally friendly choice. The 5D51-78 also boasts a large, easy-to-read LCD display and a user-friendly layout, simplifying operation for homeowners.

The advanced 5D51-90 takes technology a step further with its smart capabilities. This thermostat incorporates a digital logic circuitry that ensures precise temperature control. It also features adaptive recovery technology, meaning it learns the user’s habits and adjusts preheating or cooling cycles to achieve the desired temperature at the specified time. Additionally, the 5D51-90 model supports various communication protocols, enabling connections with more sophisticated home automation systems.

Across all three models, durability and reliability are key characteristics, ensuring they operate effectively over time even in demanding environments. The user-friendly design, sophisticated technology, and energy-saving features make the White Rodgers 5D51 series an excellent choice for homeowners looking to optimize their HVAC systems. With these thermostats, users can enjoy personalized comfort while also contributing to greater energy efficiency in their homes.