Description

TYPE 5A75

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.

The White-Rodgers combination warm air limit and single speed fan control combines into one compact case, a switch which controls the fan or blower operation and also a switch which acts as a safety limit control.

The fan switch is designed to control blower operation. It will start the fan circulating warm air when the bonnet temperature reaches the pre-determined temperature setting; stopping the fan and when the bonnet temperature falls below the pre- determined setting.

The warm air limit switch is designed to act as a safety switch which automatically shuts off the burner when the furnace temperature reaches a dangerously high point, regardless of the cause.

The limit switch of these controls has special contacts which are suitable for use on low voltage and millivolt (thermocouple generator type) circuits as well as line voltage equipment such as gas valves, oil burner motors, etc.

PRECAUTIONS

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.

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.

If the furnace manufacturer has made provision for, or recom- mendations for location of this control, then follow those instruc- tions. If not, the following suggestions should be observed.

The temperature sensitive bulbs should be positioned in the furnace bonnet so that they will be located in the area which is subjected to the most rapid temperature changes.

INSTALLATION

Avoid locations where there may be dead air spots or stratifica- tion affecting free air circulation. Corners, sharp turns, baffles or other obstructions usually cause these conditions. Do not locate the control elements where the air-flow from the bonnet into any single duct will control its operation.

WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS RD., ST. LOUIS, MO. 63123
(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. 37-0874C

Replaces 37-0874-1 & 37-9098 9549

5A75 specifications

The White Rodgers 5A75 is a renowned universal thermostat, specifically designed to meet the needs of both residential and commercial applications. As a product of White Rodgers, a subsidiary of Emerson Electric, the 5A75 showcases advanced technology and reliability, making it a trusted choice among HVAC professionals and homeowners alike.

One of the key features of the 5A75 thermostat is its compatibility with a wide array of heating and cooling systems. It is engineered to work seamlessly with both conventional and heat pump systems, allowing it to control gas, electric, and oil heating systems, as well as conventional and dual-fuel heat pumps. This versatility ensures that the 5A75 can cater to various setups, reducing the need for multiple thermostats across different systems.

The 5A75 comes with a user-friendly interface, featuring an easy-to-read display and simple navigation buttons. This design enables users to program their heating and cooling schedules effortlessly. Moreover, users can easily switch between heating and cooling modes, making it convenient to adapt to seasonal changes. The ability to set multiple schedules enhances energy efficiency, allowing homeowners to save on utility bills by optimizing their HVAC performance according to their lifestyle.

In terms of technology, the 5A75 utilizes digital sensing to provide precise temperature control, ensuring comfort within the desired temperature range. With an accuracy of +/- 1 degree Fahrenheit, users can enjoy consistent environmental conditions throughout their space. Additionally, the thermostat features a built-in anticipatory control that helps reduce temperature swings, further improving comfort levels.

Another notable characteristic of the White Rodgers 5A75 is its robust construction, designed to withstand the rigors of daily use. It is equipped with a reliable relay that enhances its longevity and minimizes the risk of malfunction. Furthermore, the thermostat supports easy installation, thanks to its universal mounting design and clear wiring guides.

For those concerned with energy management, the 5A75 also features a temporary override function, allowing users to adjust the temperature settings without altering the programmed schedule. This flexibility is particularly useful during unexpected weather changes or when hosting guests, ensuring comfort without sacrificing efficiency.

In conclusion, the White Rodgers 5A75 stands out as a versatile, user-friendly thermostat that combines advanced technology with reliable performance. Its compatibility with diverse HVAC systems, precise temperature control, and robust design make it a favorite for many users, contributing to comfort and energy savings in both residential and commercial environments.