Nordyne Intertherm 621099 Relay Control Board 24V 10A

Product Description

The Nordyne Intertherm 621099 is a relay control board designed for use in residential and light commercial air conditioning systems. This component is found inside many A/C control boxes and serves as a key switching device in the low-voltage control circuit. Relay control boards like this one manage the flow of power between the thermostat signal and the higher-voltage components such as compressors, condenser fan motors, and blower assemblies. When the thermostat calls for cooling, the control board processes the 24-volt signal and activates the appropriate relay to energize the load. This makes the 621099 a critical part of reliable system operation. HVAC technicians replacing faulty relays, burned contacts, or failed control boards will find this part fits directly into Nordyne and Intertherm manufactured equipment. Nordyne is the parent company behind multiple well-known brands including Frigidaire, Gibson, Westinghouse, and Tappan heating and cooling equipment, so this relay control board may apply across a wide range of systems. The 621099 is rated at 24 volts on the control side, making it compatible with standard residential thermostat wiring. On the load side, it handles up to 10 amps at 240 volts AC or 10 amps at 28 volts DC, giving it the capacity to switch common HVAC loads safely. Technicians should verify the existing relay board part number before ordering to confirm fitment. This is an OEM-quality replacement part intended for professional installation in the field or on the bench.

• Fits many Nordyne and Intertherm A/C control boxes as a direct relay control replacement
• Rated 24V control voltage with 10A at 240VAC and 10A at 28VDC switching capacity
• Compatible across multiple Nordyne-platform brands used in residential and light commercial HVAC systems

Product Highlights

The Nordyne Intertherm 621099 relay control board is a dependable OEM-replacement switching component rated for 24V control circuits and 10A load capacity. It is built for professional HVAC technicians servicing Nordyne-platform air conditioning equipment.

Product Information

Standard Information

• Brand: NORDYNE INTERTHERM
• Manufacturer Part Number: 621099

Technical Specifications

• Control Voltage: 24V
• Load Rating (AC): 10A at 240VAC
• Load Rating (DC): 10A at 28VDC
• Component Type: Relay Control Board
• Application: Air Conditioning Control Box