Honeywell A4021A1010 — Controll.Tenuta A4021A 110v blue

SKU: A4021A1010 Category: Tag:
  • Estimated Lead Time: 6-8 Weeks
  • Manufacturer: Honeywell
  • Controll.Tenuta A4021A 110v blue
  • Honeywell Valve proving system A4021
  • The A4021 is a self-checking microprocessor based Valve Proving System (VPS).
  • The A4021 checks the effective closure of automatic shut-off valves by measuring the pressure. differential between two valves during the test sequence.
  • The A4021 is specially designed to be used as proving system to check the effective closure of the valves before burner start up (pre-configuration) or at the end of a heat demand (post-configuration).
  • Approvals: CE approved (50Hz) according EN1643 (PIN: CE-0063AS1822)
  • Protection class: IP40, only with subbase ZL030001
  • Ambient temperature: -10…60C
  • Maximum humidity: 95%rh
  • Remote reset.
  • Alarm output potential free NO contact.
  • Uses the NO contact of a standard gas pressure switch, that is set to 1/2x the nominal inlet pressure.
  • Suggested gas pressure switches: C6097 series C60VR40xxx series
  • Outputs: 1xSPST
  • Operation: Automatic
  • Runtime: 60s
  • Comment: Test time per valve 25sec.
  • Shipping Weight: 2 Kg
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