Allied Air 27u80 Defrost Control Kit Heat Pump

Product Description

The ALLIED AIR 27u80 is a defrost control kit designed for heat pump systems where reliable frost and ice management is critical to system efficiency. This circuit board monitors outdoor coil conditions and initiates defrost cycles to prevent ice buildup that reduces heat transfer and system performance. Manufactured by Allied Air Enterprises, a brand that also encompasses Armstrong Air and Concord equipment lines, the 27u80 is a direct OEM-style replacement board. Licensed HVAC technicians typically handle installation as part of a heat pump service or component replacement call.

This defrost control kit is suited for residential heat pump applications where the outdoor unit requires a functioning defrost cycle during cold-weather operation. The board manages the transition between heating and defrost modes, protecting the outdoor coil from sustained ice accumulation. If the input-supplied product dimensions are considered, the board measures 5 inches in overall length and approximately 11.29 inches in overall width, fitting within standard heat pump control compartments.

Key Features

• OEM defrost control kit from Allied Air Enterprises, covering Armstrong Air and Concord equipment lines
• Manages automatic defrost cycle initiation and termination for outdoor heat pump coils
• Circuit board form factor designed for direct panel or bracket mounting in heat pump control compartments
• Overall length of 5 inches and overall width of approximately 11.29 inches for standard fitment
• Lightweight at 1 pound, simplifying handling during service calls

Compatibility

Designed as an OEM-style replacement defrost control kit for residential heat pump systems within the Allied Air Enterprises product family, which includes Armstrong Air and Concord branded equipment.

Installation Notes

Installation of this defrost control kit should be performed by a licensed HVAC technician. Disconnect and lock out all electrical power to the heat pump system before removing or installing any control board. Follow applicable electrical codes, including NEC guidelines, when reconnecting low-voltage and line-voltage wiring. Do not power the system until all wiring connections are secure and the control board is properly mounted.