Resideo Llc RTH22B/N 7-day Programmable Thermostat

Product Description

The RESIDEO LLC RTH22B/N is a 7-day programmable thermostat designed for residential heating and cooling systems. It supports multiple scheduling modes including 7-day, 5-1-1, 5-2, and 1-week programming, or scheduling can be disabled entirely for manual operation. The thermostat features a large display with clear font for easy daily use. Compatible with up to 2 heat and 2 cool conventional systems and up to 2 heat and 1 cool heat pump systems with electric backup, it covers a wide range of common residential HVAC configurations. Power is supplied by 2 AA batteries, not included. Licensed HVAC technicians and capable DIY installers typically handle this replacement.

The RTH22B/N is suited for residential forced-air systems running gas, oil, or electric heat, as well as hot water heat and 750 mV systems. It is intended for standard low-voltage thermostat applications in single-family homes and similar residential settings. This thermostat does not support electric baseboard heat rated at 120 to 240 volts. The multiple scheduling options allow flexibility for households with varying daily routines, and the battery-powered design simplifies installation where no common wire is present.

Key Features

• Supports 7-day, 5-1-1, 5-2, and 1-week programming schedules, or scheduling can be turned off
• Compatible with up to 2 heat and 2 cool conventional systems
• Compatible with up to 2 heat and 1 cool heat pump systems with electric backup
• Works with 750 mV systems, hot water heat, and forced-air systems (gas, oil, or electric)
• Large display with clear font for straightforward daily operation
• Battery-powered operation using 2 AA batteries — no common wire required

Compatibility

Designed for residential forced-air systems (gas, oil, or electric), hot water heat, and 750 mV systems, supporting up to 2 heat and 2 cool conventional or up to 2 heat and 1 cool heat pump configurations with electric backup. Not compatible with electric baseboard heat rated at 120 to 240 volts.

Installation Notes

Installation is typically performed by a licensed HVAC technician, though experienced DIY installers familiar with low-voltage thermostat wiring may also complete this work. Always turn off power to the HVAC system at the breaker or disconnect before removing the existing thermostat or making any wiring connections. Verify system compatibility before installation — this thermostat is not rated for electric baseboard heat at 120 to 240 volts. Follow all applicable local codes and the manufacturer installation instructions included with the unit.

Technical Specifications

• System Compatibility: Up to 2 heat and 2 cool conventional; up to 2 heat and 1 cool heat pump with electric backup; 750 mV; hot water heat; forced air (gas, oil, or electric)
• Power Source: 2 AA batteries (not included)
• Scheduling Modes: 7-day, 5-1-1, 5-2, 1-week, or scheduling off
• Package Quantity: 4 per case
• Weight: 3.56 pounds

Standard Information

• Brand: RESIDEO LLC
• Manufacturer Part Number: RTH22B/N