HK42FZ007 | United Technologies Universal Furnace Control Circuit Board

United Technologies · HVAC & Building Controls

Description  The HK42FZ007 is a discontinued furnace control board designed for 24 VAC single-phase gas furnace applications. It controls ignition, blower timing, and safety lockout features in residential HVAC systems. The board is compatible with a wide range of Carrier, Bryant, and Payne units and provides reliable operation in gas heating systems.     Technical Specifications  Condition New/Never Used Surplus Brand United Technologies Category HVAC Part Number HK42FZ007 Subcategory Furnace / Boiler Control Boards Control Type Furnace Control Circuit Board Operating Voltage 24 VAC Frequency 60 Hz Current Rating 465 mA Power Phase Single Phase Compatible Brands Carrier, Bryant, Payne Compatible Systems Central Furnace, Split Systems, Heat Pump Material Plastic Housing with Mount Brackets Dimensions ~14 cm W × 8 in L × 1 in T Application Residential HVAC Discontinued Status Yes Weight 1.00 lb (0.45 kg)       Information About HK42FZ007 The HK42FZ007 furnace control board, manufactured by United Technologies for brands such as Carrier, Bryant, and Payne, is used in central gas furnace systems. It operates at 24 VAC with a current draw of 465 mA at 60 Hz, delivering consistent management of furnace operation. This model is housed in a plastic protective casing with mounting brackets for secure installation and supports ignition and fan control functions. Though discontinued, it remains a common replacement part for earlier Carrier group HVAC units with model compatibility across HK42FZ007, HK42FZ011, HK42FZ008, and HK42FZ004. Key Features: Integrated Control Functions: Manages ignition, fan delay, blower timing, and flame sensing. OEM Compatibility: Designed for use with Carrier, Bryant, and Payne branded furnace systems. Voltage and Frequency: Operates at 24 VAC, 60 Hz with 465 mA current draw. Robust Safety: Includes lockout functions for system protection and diagnostics. Mounting Hardware: Equipped with brackets for secure panel mounting in furnace cabinets. Universal Gas Compatibility: Suitable for use with all gas furnace configurations. Lightweight Design: Weighs only 0.76 lbs for easy handling and replacement. Compact Housing: Constructed with durable plastic protective enclosure. Wide Model Coverage: Compatible with HK42FZ011, HK42FZ008, HK42FZ004, and others. Discontinued: No longer in production, but available as legacy part for field replacements. The HK42FZ007 delivers dependable performance and essential safety functions in legacy gas furnace systems.

Brand: United Technologies · Category: HVAC & Building Controls

Key features

• Integrated Control Functions: Manages ignition, fan delay, blower timing, and flame sensing.
• OEM Compatibility: Designed for use with Carrier, Bryant, and Payne branded furnace systems.
• Voltage and Frequency: Operates at 24 VAC, 60 Hz with 465 mA current draw.
• Robust Safety: Includes lockout functions for system protection and diagnostics.
• Mounting Hardware: Equipped with brackets for secure panel mounting in furnace cabinets.
• Universal Gas Compatibility: Suitable for use with all gas furnace configurations.
• Lightweight Design: Weighs only 0.76 lbs for easy handling and replacement.
• Compact Housing: Constructed with durable plastic protective enclosure.
• Wide Model Coverage: Compatible with HK42FZ011, HK42FZ008, HK42FZ004, and others.
• Discontinued: No longer in production, but available as legacy part for field replacements.

Specifications

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