A4021A1010 | Honeywell Valve Proving System 25-Second Test Time, 100–120 VAC

Honeywell · Valves & Process Control

Description  The Honeywell A4021A1010 is a valve proving system designed to verify the tightness of safety shutoff valves in gas-fired burner systems. Operating at 100–120 VAC and consuming 4.5 VA, it performs a 25-second leak test per valve to ensure reliable system safety before each burner start-up.     Technical Specifications  Condition New/Never Used Surplus Brand Honeywell Category Flame Safety Systems Part Number A4021A1010 Subcategory Valve Proving Systems Function Automatic leak test for safety shutoff valves Test Time 25 seconds per valve Power Supply 100–120 VAC Power Consumption 4.5 VA Frequency 50 Hz Control Type Electronic valve proving controller Mounting Panel or control cabinet mount Valve Compatibility Gas safety shutoff valves (two-valve systems) Application Gas-fired burners and combustion systems Operation Sequence Tests both upstream and downstream valves for leakage before ignition Safety Standard Meets EN and UL gas safety system requirements Indicator LED display for test status and fault indication Reset Automatic or manual reset options depending on system design Environmental Rating Indoor use, NEMA 1 equivalent Operating Temperature 0°C to +60°C (32°F to 140°F) Storage Temperature -40°C to +85°C (-40°F to 185°F) Relative Humidity Up to 85%, non-condensing Typical Use Industrial burners, boilers, and gas heating systems Weight 0.44 lbs (approx. 0.2 kg)   Information About A4021A1010 The Honeywell A4021A1010 is part of Honeywell’s proven line of safety components designed for combustion system integrity verification. It ensures that gas valves in burner systems are properly sealed before ignition, preventing dangerous gas leaks and enhancing overall system safety. The unit performs an automatic pressure decay test over a 25-second cycle for each valve, confirming tightness through a pressure differential method. Designed for use with gas-fired systems, the A4021A1010 is compatible with dual-valve arrangements commonly found in industrial and commercial burners. It operates on a standard 100–120 VAC power supply and integrates easily with existing Honeywell burner management systems. Its durable construction and precision electronic control make it a reliable safety component in demanding environments. Key Features: Automatic Valve Leak Test: Performs a 25-second proving cycle per valve to confirm gas valve integrity before burner start-up. Safety Assurance: Prevents unsafe ignition conditions by detecting valve leakage and interrupting burner operation if a fault is found. Simple Integration: Designed for compatibility with Honeywell burner management systems and standard two-valve configurations. Efficient Operation: Operates on 100–120 VAC, consuming only 4.5 VA, providing energy-efficient safety testing. Reliable Electronic Control: Solid-state design ensures stable performance and accurate pressure verification. Status Indication: Equipped with LED indicators to display test status and fault conditions for quick diagnostics. Compact and Durable: Lightweight and panel-mountable design fits easily into control enclosures. Environmental Resilience: Rated for operation in ambient temperatures up to +60°C, ideal for industrial burner installations. International Compliance: Meets applicable EN and UL safety standards for gas valve proving systems. Low Maintenance: Electronic components require minimal servicing while providing long operational life. The A4021A1010 delivers the reliability and precision required for safe, automatic verification of gas valve integrity in industrial and commercial combustion systems.

Brand: Honeywell · Category: Valves & Process Control

Key features

• Automatic Valve Leak Test: Performs a 25-second proving cycle per valve to confirm gas valve integrity before burner start-up.
• Safety Assurance: Prevents unsafe ignition conditions by detecting valve leakage and interrupting burner operation if a fault is found.
• Simple Integration: Designed for compatibility with Honeywell burner management systems and standard two-valve configurations.
• Efficient Operation: Operates on 100–120 VAC, consuming only 4.5 VA, providing energy-efficient safety testing.
• Reliable Electronic Control: Solid-state design ensures stable performance and accurate pressure verification.
• Status Indication: Equipped with LED indicators to display test status and fault conditions for quick diagnostics.
• Compact and Durable: Lightweight and panel-mountable design fits easily into control enclosures.
• Environmental Resilience: Rated for operation in ambient temperatures up to +60°C, ideal for industrial burner installations.
• International Compliance: Meets applicable EN and UL safety standards for gas valve proving systems.
• Low Maintenance: Electronic components require minimal servicing while providing long operational life.

Specifications

Contact Safety Shops for pricing, delivery and project support in the UAE.