White-Rodgers B50 Electric Heat Thermostat Installation Guide
- June 16, 2024
- WHITE RODGERS
Table of Contents
White-Rodgers B50 Electric Heat Thermostat
Product Information
Product Name: B50 Electric-Heat Thermostat
Description: The B50 Electric Heat Thermostat is designed for use on all types of electrical heating installations such as cable heat, baseboards, wall insert heaters, etc. It is intended for use on 240 or 277VAC where local codes require a double line disconnect thermostat. This thermostat can also be used on 120 VAC.
Precautions
- This control is a precision instrument, handle it carefully to prevent malfunction.
- Disconnect electric power to the system at the main fuse or circuit breaker box before installation.
- All wiring must conform to local and national electrical codes and ordinances.
- Do not use on circuits exceeding specified voltages as it may cause damage or hazards.
- Avoid using on inductive (motor) loads as it may damage the control or cause hazards.
Specifications
- Switch Rating :
- Non-Inductive 22A (5000W) 240VAC
- 19A (5000W) 277VAC
- 22A (2500W) 120VAC
- Website : www.white-rodgers.com
- User Manual : https://manual-hub.com/
- Part Number : 37-7272B 1546
Installation Instructions
- If the heating equipment manufacturer has provided recommendations for the location of the control, follow those instructions. Otherwise, consider the following suggestions:
- Mount the control in the wall, approximately five feet from the floor, near the center of the controlled area.
- Mount it on a partitioning wall, not an outside wall.
- Keep it away from sources of heat and cold such as windows, doors, direct sunlight, hot water or cold water pipes, and adjoining outside walls.
- Wiring :
- All wiring must conform to local and national electrical codes and ordinances.
- The thermostat can be mounted in any standard 2 x 3 electrical outlet box. For ease of installation, use a deep type box.
- Disconnect electrical power to the system at the main fuse or circuit box.
- Make electrical connections to the thermostat leads using wire nuts or other local code approved devices. Ensure all connections are tight.
- Push the lead wires into the outlet box.
- Remove the thermostat cover and push the thermostat case into the junction box. Secure it with the provided screws. Take care not to push or damage the bimetal sensing element during installation.
- Install the thermostat cover and turn the knob to the desired setting.
FAQ
- Q: What is the switch rating for this thermostat?
- A : The switch rating is non-inductive 22A (5000W) at 240VAC, 19A (5000W) at 277VAC, and 22A (2500W) at 120VAC.
- Q: Can this thermostat be used on inductive loads?
- A : No, using this thermostat on inductive (motor) loads can damage the control and may cause shock, fire hazards, or thermostat failure.
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
- The B50 Electric Heat Thermostat is designed for use on all types of electrical heating installations such as cable heat, baseboards, wall insert heaters, etc.
- The B50 thermostat is intended for use on 240 or 277 VAC wherelocal codes require that a double line disconnect thermostat be used. This thermostat can also be used on 120 VAC. (See specific wiring information for 120 VAC.)
- Dial Setting : This thermostat may be set anywhere between 40° and 80°F by simply turning the knob so the indicator on knob points to the desired setting.
- The knob may be turned past 40° to the “OFF” position to obtain temporary shutdown of the heating equipment for short periods of time such as on weekends, vacation, etc. Turning knob to “OFF” position will break both sides of line.
- NOTE : Only one side of line is broken during normal cycling of this thermostat.
PRECAUTIONS
- This control is a precision instrument, and should be handled carefully. Rough handling or distorting components could cause the control to malfunction. Take care not to push or damage the internal bimetal sensing element during installation.
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.
- All wiring must conform to local and national electrical codes and ordinances.
WARNING
- Do not use on circuits exceeding specified voltages. Higher voltages will damage control and could cause shock or fire hazard.
- Do not use on inductive loads. Inductive (motor) loads will damage control and could cause shock, fire hazard or failure of thermostat.
- All wiring must conform to local and national electrical codes and ordinances.
SPECIFICATIONS
- Switch Rating : Non-Inductive
- 22A (5000W) 240VAC
- 19A (5000W) 277VAC
- 22A (2500W) 120VAC
- Temperature Range : 40° to 80°F
- Differential : 3.0°F
- Switch Action : Open on rise
- Contact Structure : Double Line Disconnect – DPST
INSTALLATION
If the heating equipment manufacturer has made provisions or recommendations for the location of this control, then follow those instructions. If not, the following suggestions should be observed.
- The control should be mounted in the wall, approximately five feet from the floor, as near as possible to the center of the controlled area.
- It should be mounted on a partitioning wall, not on an outside wall.
- It should be mounted as far as possible from undesirable sources of heat and cold such as:
- a. Windows and doors
- b. Direct rays from sun
- c. Hot water or cold water pipes
- d. Adjoining outside walls
WIRING…………
- All wiring must conform to local and national electrical codes and ordinances.
- The thermostat may be mounted in any standard 2″ x 3″ electrical outlet box. For ease of installation use a deep type box.
CAUTION
- USE WITH COPPER CONDUCTORS ONLY.
- Use approved wire connectors for 12 AWG only.
-
Disconnect electrical power to the system at the main fuse or circuit box.
-
Make an electrical connection to thermostat leads with wire nuts or other local code-approved devices. All connections must be tight.
-
Push the lead wires into the outlet box.
-
Remove the thermostat cover. Push the thermostat case into junction box and secure with the screws provided.
Take care not to push or damage the bimetal sensing element during installation. -
Install the thermostat cover and turn the knob to the desired setting.
Temperature Limiting Pins
Temperature Limiting Option is for applications where the temperature setting of the control is to be set and “protected” from unauthorized adjustment. To limit the temperature range, follow the directions below:
- Remove cover from thermostat.
- On inside of cover, firmly press small tapered end of a pin into the approximate maximum and minimum temperature positions.
- After pressing pins into place on inside of cover, rotate temperature knob to be sure the knob is between the pins.
- Replace cover on thermostat. Check that knob rotation is limited in travel as set by the pins. If rotation of knob is outside of limits, check that the pins are installed properly.
- Install supplied screws at top and bottom of thermostat to secure cover.
Inside of cover
FOR CALIFORNIA RESIDENTS
- Warning : This product contains a chemical known to the state of California to cause cancer and birth defects and other reproductive harm.
- White-Rodgers is a division of Emerson Electric Co.
- www.white-rodgers.com