Friedrich 67401347 Main Pcb Control Board Ptac

Product Description

The FRIEDRICH 67401347 is a main printed circuit board (PCB) designed as a direct OEM replacement for Friedrich PTAC and heat pump units. The control board serves as the central processing component of the system, managing communication between the thermostat inputs, compressor controls, fan motor circuits, and auxiliary heating elements. Licensed HVAC technicians and commercial service professionals install this board when diagnosing failed logic, erratic operation, or fault codes that cannot be resolved through other components. It is sold as a single unit and is intended for exact-fit replacement in the specified Friedrich models.

This PCB is used in Friedrich packaged terminal air conditioner and heat pump systems, which are common in hospitality, multi-family residential, and light commercial applications. These units are typically wall-mounted and serve single-zone climate control. The board is compatible with the WFH series models listed below, which span multiple tonnage configurations from 24,000 BTU/h to 60,000 BTU/h nominal capacities.

Key Features

• OEM Friedrich replacement PCB for direct plug-and-play fitment in specified WFH series units
• Controls compressor staging, fan motor operation, and auxiliary heat sequencing
• Central logic board for fault detection and system communication
• Sold as a single unit (each)

Compatibility

Compatible with the following Friedrich models: WFH24Z193C, WFH36Z193C, WFH48Z223C, and WFH60Z223C.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with packaged terminal equipment. Disconnect power to the unit at the disconnect or breaker before removing the existing control board. Photograph or document all wiring harness connections prior to removal to ensure correct reassembly. Follow local electrical codes and the manufacturer service documentation when completing the replacement.

Technical Specifications

• Component Type: Main PCB Control Board
• Unit of Measure: Each

Standard Information

• Brand: FRIEDRICH
• Manufacturer Part Number: 67401347