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The VGPS-evo is a gas pressure proving system with ventilation interlock and optional CO2 detection.
The system will check the ventilation is switched on and running before performing a down stream integrity
check ensuring gas tightness before use. It will close the gas solenoid valve in the event of a ventilation
failure, gas leak detected during test, low incoming gas pressure or if the emergency stop/fire alarm is
activated.
It is designed for use primarily in kitchens.
.
Before commencing installation please familiarise yourself to the equipment by reading the comprehensive
installation instructions. If in doubt then please call 0161 233 0600. Out of hours please call 07894 684080 or
07843 355163.
It is a statutory requirement that this safety system is installed and commissioned
A commissioning certificate must be issued to the end user along with instructions for the operation of the
equipment.
As the Manufacturer Medem UK should commission this safety system whereupon a commissioning report
will be forwarded to the installing agent who should provide a copy to the end user.
At the point of our commissioning an individual serial number will be attached to the system along with a 24
help line number. Photos and all relevant information for the installation will then be stored on the Medem
site database to be accessed in the event of a call on the 24 hour help line. The warranty period for the
panel and sender unit will then be extended to Ten years.
VGPS-evo
Installation Instructions
to the satisfaction of the manufacturer.
V3
.4
•
Gas Pressure proving.
•
Ventilation interlock
•
CO2 monitoring
•
Over pressure alert
•
5 year warranty - 10 years when commissioned
VGPS-evo Features
265
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Related Manuals for Medem VGPS-evo V3
Summary of Contents for Medem VGPS-evo V3
- Page 1 At the point of our commissioning an individual serial number will be attached to the system along with a 24 help line number. Photos and all relevant information for the installation will then be stored on the Medem site database to be accessed in the event of a call on the 24 hour help line. The warranty period for the...
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Page 2: System Description
It is mounted to the gas solenoid valve inlet and outlet test ports using 8mm OD copper pipe. Use the appropriate Medem fitting kit to fit the control valve size (see page 10,11). -
Page 3: Main Features
OPTA ON = OPTB ON = No Gas isolation due to High CO2. SPARE Rev Sen = Reverse sender inlet/outlet channel (only use with guidance from Medem support) Fill time = “One’s of Seconds” Prove time = “Minutes” Sw=x2 = Multiply by 2 all the Fill and Prove timer settings. -
Page 4: System Settings
VGPS-evo System Settings 12, 13, 14. Diagnostic Functions Fan commissioning: This is for use during setup & commissioning to temporary disable the ventilation interlock this allows a gas engineer to work on the system even if the ventilation system hasn’t been completed. Lift valve - applies 230volts to power open the gas valve. - Page 5 VGPS-evo System Settings 19, 20, 21. Option Headers 19.Fan timer setting. When using the “Fan Comm” button (14) to allow commissioning of the gas supply without interlocking the ventilation, the period of isolation can be adjusted using these headers (default 24 hours) The auto-stop timer function allows the system to be set to turn the gas off after a pre-determined period of time.
- Page 6 +/- 12v Power S1 = Supply Fan N/C contact E1 = Extract Fan N/C contact Fan speed Fan live fans controls Supply Where using 3 phase fans interlock on a single phase Live feed through the Medem CM2M-K channel current Monitor...
- Page 7 Use terminals TB2 A & C Resetting (indicator bar) The stop buttons supplied by Medem are of a “Push Glass, key resettable” style, when activated a yellow indicator bar will show and the unit will require resetting using the key provided.
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Page 8: Detector Information
Ensure that the protective cover labels (RED) are removed only after the completion of all building work and the system has been commissioned by the Medem engineer. The labels are required to be removed for the detectors to operate, but removal before the completion of works risks contaminating the sensor element. - Page 9 After installation a simple bump test can be performed by using an appropriate level test gas in order to check operation. Full testing and calibration checking takes place during a Medem commissioning. Detector Location Detector location will vary dependant on the individual characteristics of the target gas that is being monitored for.
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Page 10: Direction Of Flow
VGPS-evo Sender & Valve connection Direction of flow Ensure that the valve is correctly installed with regard to the direction of the flow of gas and that the Sender Unit is fitted the correct way round. (Note: there is no flow “through” the pressure sender unit, it is purely reading the pressures either side of the valve. -
Page 11: Fitting Kit
VGPS-evo Fitting Kit Mounting details - Fitting kit WALL MOUNTING STRAP PRESSURE SENDER UNIT INLET PORT & OUTLET PORT Note: These ports could be side by side INLET PORT OUTLET PORT Note: If this port is blanked off, use port on base of valve. NOTES: Solenoid coil of the valve should never be mounted below the horizontal. -
Page 12: Warranty
Where a warranty claim is made then, where appropriate, a written order to attend site must be provided to Medem UK A cost for labour and travel to site will be prepared as a quote. The cost must be included in the order. - Page 13 Notes. It is recommended that all systems are commissioned a er installa on by Medem UK. This will extend the warranty period from 5 years to 10 years and ensure the system is working as designed.
- Page 14 VGPS-evo messages In the event of any alert the system will always give a reason on screen as to the cause. Common messages you may receive are shown below with further explanation. If you require any help or if anything is unclear then please contact technical support on 0161 233 0600 Test fail check all appliances: The system has found an escape of gas, the most common cause is an open appliance.
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