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 servic- ing 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.

CAUTION

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

INSTALLATION

MOUNTING AND WIRING

All wiring should be installed according to local and national 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 approved for mini- mum ambient temperatures of -40°F.

When mounting the control, any orientation is acceptable. Choose a location that will not damage, obstruct or place stress on the control’s terminations, system wiring harness or system components. After finding a suitable location, drill four (4) 1⁄8” holes for mounting control. To ensure proper mounting hole locations, there is a mounting hole template on page 8 of this instruction sheet. Detach the page with the template from the instruction sheet and apply it to the mounting location. When drilling the holes, take care so that the transformer, wiring harness or other system components are not damaged. Four (4) #8 sheet metal screws are provided to complete the installation.

Refer to the wiring diagram and wiring table when connecting the 50A55 control to other components of the system.

UL approved, 105°C rated 18 gauge, stranded, 2⁄64” thick insula- tion wire is recommended for all low voltage safety circuit connections. Refer to 50A55 specification sheet for recom- mended 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 50A55 specification sheet for recommended terminals to mate with those on the control.

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

The 50A55 has only one serviceable part–an automotive type fuse, which protects the low voltage transformer from damage if its output is short-circuited. If the fuse has opened up, remove whatever caused the short circuit and replace the fuse with only a 3 Amp automotive type fuse. If the fuse is not the cause of the control’s problem, replace the entire 50A55 control. There are no other user serviceable parts.

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White Rodgers 50A55-285 installation instructions Installation, Mounting and Wiring
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50A55-285 specifications

The White Rodgers 50A55-285 is a versatile and reliable universal thermostat designed for HVAC systems. Ideal for both residential and commercial applications, it is engineered to enhance comfort while optimizing energy efficiency. This model is especially favored for its adaptability to a range of heating and cooling systems, including gas, oil, electric, and heat pumps.

One of the standout features of the 50A55-285 is its compatibility with a variety of HVAC systems, which includes multi-stage heating and cooling. This versatility allows homeowners to seamlessly integrate the thermostat into their existing setups, making it a popular choice for retrofit installations. The thermostat supports 24V AC applications while providing the necessary control for both single-stage and multi-stage units.

The 50A55-285 utilizes advanced technology to ensure precise temperature control. It includes an advanced microprocessor that provides improved performance and a user-friendly experience. This technology aids in reducing energy consumption while maintaining the desired temperature within the home or commercial space.

Users will appreciate the easy-to-read LCD display, which offers clear visual feedback on temperature settings and system status. The backlit display enhances readability even in low-light conditions. The intuitive interface comes equipped with simple navigation buttons, allowing users to program settings with minimal effort.

Energy efficiency is another hallmark of the 50A55-285. It features programmable options that enable homeowners to set their desired temperature according to specific schedules, further optimizing energy use. Users can easily program daily and weekly schedules, ensuring the system only operates when needed, which can lead to substantial cost savings on energy bills.

Safety is a critical aspect of the 50A55-285’s design; it incorporates features such as adjustable temperature limits and a built-in safety shut-off function. These characteristics safeguard against system malfunctions and enhance users’ peace of mind.

Overall, the White Rodgers 50A55-285 thermostat is a sophisticated solution for temperature control. Its compatibility with various systems, user-friendly features, and energy-saving capabilities make it an outstanding choice for anyone looking to improve their comfort and efficiency in heating and cooling. Whether for a residential or commercial application, this thermostat stands out as a reliable choice in modern HVAC technology.
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