VentGuard - Ventilation Interlock

VentGuard - Ventilation Interlock

The VentGuard is a cost effective BS6173:2009 and IGEM/UP/19 compliant ventilation interlock.

The clear LED indication and simple user interface make it ideal for any commercial kitchen

With dedicated interfaces and LEDs for the intake and extract fans, the VentGuard will provide an indication of any ventilation issues, however, will not shut down the gas supply until the ventilation has not been operating for a full 30 seconds to avoid any nuisance tripping.


View FileVentGuard - Ventilation Interlock

Key Features

  • Clear LCD indication
  • No commissioning required
  • Interfaces for:
    • Intake Fan, Extract Fan, CO2 Monitors, Remote Emergency Stop Buttons
  • Mains rated status relay for external monitoring
  • Built in time delays to avoid nuisance tripping
  • 5 Year Warranty

Technical Specification

Power Supply 100 -240VAC 50/60Hz
Consumption (Max) 50W
Power Output Gas Solenoid - Switched Mains
IP Rating IP65
Approval CE

External Device Interfaces

Valve Status SPDT - 5A @ 240V Max
CO2 Sensor 24V Signal to monitor external VFC
Intake Fan 24V Signal to monitor external VFC
Extract Fan 24V Signal to monitor external VFC
Remote Stop 24V Signal to monitor external VFC


Height 180 mm
Width 130 mm
Depth 60 mm / 65 mm including Stop ∓ Key Switch

Basic Operation

The VentGuard has a simple key switch operated ON/OFF function and a panel mounted flush emergency stop button to avoid accidental operation.

Turning the key to the ON position will enable the gas supply providing the remote emergency stop and CO2M interfaces are not in alarm.

If the intake or extract fan are not in operation the panel will still allow gas through until they have been open circuit for a full 30 seconds. As some systems use the valve status to enable the fans this will allow the fans to get up to speed and provide a healthy signal to the VentGuard without any issues.

Part Numbers & Options / Accessories

Part No Description
VG-PO VentGuard Panel
VG-DP2 VentGuard Panel c/w 2 Air DP Switches

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