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

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

Part #: A4021A1010 Manufactured by: Honeywell
Regular price
$3,340.00
Sale price
$3,340.00
Regular price
1 in Stock
Condition: New-Surplus Original Box
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Product Overview
The Honeywell A4021A1010 Valve Proving System verifies the tightness of gas shutoff valves with a 25-second test cycle per...  Read more
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Warranty for Product #: A4021A1010
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Product Description P/N: A4021A1010

Description / Specifications

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.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

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.

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