Honeywell 130224/u Adjustment Knob T921

Product Description

The HONEYWELL 130224/u is a plastic adjustment knob designed as a replacement or service component for the T921 series thermostat controls. Constructed from durable plastic, this knob mounts directly to the T921 control interface and provides the tactile adjustment point that end users and technicians turn to change setpoints or settings. It is a straightforward mechanical accessory, but a necessary one when an original knob is damaged, missing, or worn. HVAC service technicians and controls technicians are the primary installers for this type of component.

This adjustment knob is suited for use in residential and light commercial HVAC control applications where the T921 series controller is installed. It functions as a direct service part, restoring the physical interface on a T921 unit that has lost its original knob. It is a common stock item for technicians who service legacy thermostat and control equipment in the field.

Key Features

• Plastic construction provides lightweight, durable performance
• Designed specifically for the T921 series control
• Restores original setpoint adjustment functionality
• Simple snap-on or friction-fit installation typical for this knob type

Compatibility

Designed for use with the Honeywell T921 series controls as a direct-fit replacement adjustment knob.

Installation Notes

Installation of this knob is typically performed by an HVAC technician during a service call or control repair. Before replacing the knob, de-energize the control system at the disconnect or breaker. Confirm the knob shaft on the T921 is clean and undamaged before seating the new knob. No special tools are generally required for knob replacement.

Technical Specifications

• Material: Plastic
• Compatible Series: T921

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: 130224/u