White Rodgers 50A66-743 Installation, Mounting and Wiring, Any orientation is acceptable

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WARNING

FIRE HAZARD

Do not exceed the specified voltage.

Replace existing control with exact model and dash number.

Protect the control from direct contact with water

(dripping, spraying, rain, etc.).

Label all wires before disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

Route and secure wiring away from flame.

SHOCK HAZARD

Disconnect electric power before servicing .

Ensure proper earth grounding of appliance.

Ensure proper connection of line neutral and line hot wires.

EXPLOSION HAZARD

Shut off main gas to appliance until installation is complete.

INSTALLATION

Do not short out terminals on gas valve or primary control. Short or incorrect wiring may damage the thermostat.

MOUNTING AND WIRING

All wiring should be installed according to local and na- tional electrical codes and ordinances.

The control must be secured to an area that will experience a minimum of vibration and remain below the maximum ambient temperature rating of 175°F. The control is ap- proved for minimum ambient temperatures of -40°F.

Any orientation is acceptable.

Refer to the wiring diagram and wiring table when connect- ing the 50A66 control to other components of the system.

UL approved, 105°C rated 18 gauge, stranded, 2/64” thick insulation wire is recommended for all low voltage safety circuit connections. Refer to 50A66 specification sheet for recommended terminals to mate with those on the control.

UL approved 105°C rated 16 gauge min., stranded, 4/64” thick insulation wire is recommended for all line voltage connections. Refer to 50A66 specification sheet for rec- ommended terminals to mate with those on the control.

After installation or replacement, follow appliance manu- facturer’s recommended installation or service instructions to ensure proper operation.

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Contents Description Installation InstructionsPrecautions ContentsHumidity Range SpecificationsElectrical Ratings @ 77F 25C Operating Temperature Range Timing SpecificationsInstallation Mounting and WiringAny orientation is acceptable Typical System Wiring Diagram WiringConnection Typical System Wiring TableSystem Component TerminalManual FAN on Mode Operation Option SwitchesHeat Mode Cool ModeSystem Lockout and Diagnostic Features System Lockout FeaturesDiagnostic Features Diagnostic Table Troubleshooting

50A66-743 specifications

The White Rodgers 50A66-743 is a state-of-the-art heating and cooling thermostat designed for maximum comfort and efficiency in residential environments. This versatile device is known for its reliability and user-friendly features, making it a popular choice among homeowners and HVAC professionals alike.

One of the key features of the 50A66-743 thermostat is its programmable functionality. Users can easily set temperature schedules for different times of the day, ensuring optimal energy consumption while maintaining a comfortable home environment. With the option to program up to four different time periods per day, this thermostat allows for customizable comfort tailored to the homeowner's lifestyle.

The 50A66-743 employs advanced technology to facilitate precise temperature control. Its microprocessor-based design ensures accurate readings and smooth operation, allowing the system to maintain the set temperature with minimal fluctuation. This not only enhances comfort but also promotes energy efficiency, which can result in reduced utility bills.

Another notable characteristic of the White Rodgers 50A66-743 is its compatibility with various heating and cooling systems. It can easily integrate with single-stage and multi-stage systems, including gas, oil, and electric furnaces, as well as heat pumps. This versatility makes it an ideal choice for diverse HVAC applications.

User convenience is a top priority with this model, and it is equipped with a clear, easily readable display that provides real-time temperature readings. The backlit screen enhances visibility, making it easy for users to check the status of their heating or cooling systems, even in low-light conditions.

Additionally, the 50A66-743 features a simple interface with intuitive buttons that allow for quick adjustments to temperature settings. This straightforward design minimizes the learning curve for new users, making it accessible for families of all ages.

The thermostat also includes a filter change reminder, which helps homeowners stay on top of maintenance tasks, ensuring optimal system performance. Regular filter changes are crucial for maintaining air quality and efficiency, and this alert serves as a helpful nudge to keep homeowners proactive about their HVAC systems.

In summary, the White Rodgers 50A66-743 thermostat combines advanced technology, user-friendly features, and compatibility with various HVAC systems, making it an excellent choice for those seeking comfort and efficiency in their homes. Its programmable functionality, precise temperature control, and convenient design ensure that users can easily manage their home’s climate while saving on energy costs.