Allied Air 21z22 Natural to Lp Gas Conversion Kit

Product Description

The ALLIED AIR 21z22 is a natural gas to liquid propane (LP) conversion kit designed for single-stage commercial gas heating equipment. This kit provides the hardware and orifices needed to convert a factory natural gas configuration to LP operation, allowing service technicians to adapt compatible heating units to sites where LP is the available fuel source. At 1.0 pound and compact enough to handle easily in the field, the 21z22 is built for straightforward professional installation by qualified gas technicians working on commercial HVAC systems.

This conversion kit applies to single-stage commercial gas heating applications. It is intended for use during commissioning or fuel-source changeover projects where a unit originally configured for natural gas must be converted to LP before or during installation. The kit is suited for commercial environments where LP is the primary fuel supply, such as locations without access to natural gas utility service.

Key Features

• Converts natural gas configuration to liquid propane (LP) operation
• Designed for single-stage heating equipment
• Compact form factor — 7 inches height, 7 inches length, 5 inches width
• Lightweight at 1.0 pound for easy handling in the field
• Single-phase compatible equipment application

Compatibility

Designed as an OEM-style natural to LP gas conversion kit for compatible single-stage ALLIED AIR commercial gas heating equipment. Consult the equipment installation manual or ALLIED AIR documentation to confirm fitment for a specific unit before ordering.

Installation Notes

Installation must be performed by a licensed gas technician in accordance with local codes and the appliance manufacturer instructions, including applicable IFGC requirements. Shut off the gas supply and allow the unit to cool completely before beginning any conversion work. Do not operate the converted unit until all orifice changes, valve adjustments, and leak checks have been completed and verified per the conversion kit instructions. Proper combustion verification after conversion is required before returning the equipment to service.

Technical Specifications

• Conversion Type: Natural Gas to LP
• Staging: Single Stage
• Number of Phases: 1 Phase
• Height: 7 inches
• Length: 7 inches
• Width: 5 inches
• Net Weight: 1.0 pound

Standard Information

• Brand: ALLIED AIR
• Manufacturer Part Number: 21z22