Parts to Your Door 54112 Outside Sensor Purefire

Product Description

The PARTS TO YOUR DOOR 54112 is an outdoor ambient temperature sensor designed for use with Purefire boiler systems. This sensor monitors outside air temperature and feeds that data to the boiler control, enabling outdoor reset functions that improve heating efficiency and reduce fuel consumption. It is a direct OEM-style replacement part typically installed by licensed plumbers or hydronic heating technicians during routine service or control system upgrades. The sensor mounts on an exterior wall and connects to the boiler control board via low-voltage wiring.

This sensor is specified for Purefire boiler applications where outdoor reset control is part of the system design. The Peerless part number TSA00B4 is associated with this component. Outdoor reset sensing is common in residential and light commercial hydronic heating systems, allowing the boiler to modulate output based on real-time outdoor conditions rather than fixed setpoints. Installation is typically completed as part of a controls replacement or system commissioning job.

Key Features

• Outdoor ambient temperature sensing for boiler outdoor reset control
• Associated OEM reference: TSA00B4
• Low-voltage sensor connection compatible with Purefire boiler control boards
• Direct OEM-style replacement for simplified swapout service

Compatibility

Designed for use with Purefire boiler systems. The Peerless part number TSA00B4 is identified as the associated OEM reference for this sensor.

Installation Notes

Installation should be performed by a licensed plumber or hydronic heating technician. Shut down boiler power and allow the system to cool before disconnecting or connecting any sensor wiring. Mount the sensor on a north-facing exterior wall shielded from direct sunlight and heat sources to ensure accurate ambient readings. Follow the boiler manufacturer wiring diagrams and local mechanical codes when connecting the sensor to the control board.

Technical Specifications

• Type: Sensor

Standard Information

• Brand: PARTS TO YOUR DOOR
• Manufacturer Part Number: 54112