Dungs VPM-VC Manual
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Dungs VPM-VC Manual

Control unit for system leakage tests
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Control unit for system
leakage tests
Type VPM-VC
(Valve Check)
8.22
Description
The VPM-VC valve test module
checks the tightness of burner gas
shut-off valves in combination with
one or two pressure switches. The
test is performed in accordance with
EN 1643.
The program sequence, filling and
venting parameters as well as pro-
gram times can be adjusted by the
user according to the system require-
ments.
Application
The VPM-VC has been designed for
automatic leak testing between two
solenoid valves in gas-consuming
devices, either prior to start-up or
after switching off the system. The
test system can be used as a single
leakage tester or in combination with
LGV
VPM VC
(NO)
P
p
GW 1
V1
V2
automatic burners. It is used in gas
burner systems for heating, process
heating,
process industry and gas engines.
Approvals
EU type testing certificate as per:
• EU-Gas Appliances Regulation
• EU-Pressure Equipment Directive
The VPM meets the requirements of:
- Machinery Directive 2006/42/EC
- Low Voltage Directive 2014/35/EU
- EMV 2014/30/EU
Approvals in other important gas-
consuming countries.
FM Approvals Class 7610
VPM VC
V3
V2
V4
P
p
GW 1
V1

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Summary of Contents for Dungs VPM-VC

  • Page 1 - Machinery Directive 2006/42/EC - Low Voltage Directive 2014/35/EU Application - EMV 2014/30/EU The VPM-VC has been designed for automatic leak testing between two Approvals in other important gas- solenoid valves in gas-consuming consuming countries. devices, either prior to start-up or FM Approvals Class 7610 after switching off the system.
  • Page 2 Red/green LEDs signal various information on the program and release states or error codes. TWI interface Plug-in connection for DUNGS VisionBox. The VisionBox can be used to access the VPM via a PC. The VisionBox is hardware and software for VPM parameter setting. Status information and error error memory data can be read out.

  • Page 3: Application Information

    Application information EN 676: 2008-11 ... requests tightness checks at burner capacities above 1,200 kW or already at capacities from 70 kW for burners without pre-purging. EN 746-2: 2011-02 …requests the use of a VPM for some applications. Pre-venting of the burner chamber can be omitted when using a VPM. Venting of the furnace is done to the atmosphere.
  • Page 4 Signalling unit Error information Detailed error information via flash codes All LEDs are flashing: • when a key press is requested during a RESET level change • when the VPM is ready for extended unlocking MFT (RESET) Constantly red V1 leaking = multifunction two LEDs two LEDs...
  • Page 5 7 planations, see instal- without additional lation examples in the operating cycles Setting must be higher VPM-VC operating and than the calculated mounting instructions. Operating mode time. "T- Down optimised“: > t...

  • Page 6: Installation Examples

    1/10 of the maximum gas flow of the main valves. Direct valve check via LGV, venting through roof Valve check system component: VPM-VC, Pp, LGV - - - DIP-mode: A: 1100 1001 � 0011 � �...
  • Page 7 Valve check via pilot valves V3, LGV venting through the roof Valve check system component: VPM-VC, Pp, V3, LGV - - - DIP mode: A: 1100 1001 � 0011 � � VPM VC B: xxxx C: 1100 (NO) 0110 1001 �...
  • Page 8 Valve check via pilot valves, venting to V2 via LGV type2 (normally closed) Valve check system component: VPM-VC, Pp, LGV (NC) - - - Type2 The LGV type 2 is required for opening the gas flow behind V2 (to the burner chamber or atmosphere), al- lowing it to be emptied when V2 is deliberately (during the test) open.

  • Page 9: Venting Through Roof

    Valve check via pilot valves and LGV, venting to V2 via LGV Venting through roof type2 (normally closed) Valve check system component: VPM-VC, Pp, LGV, LGV (NC) type2 - - - DIP mode: A: 1100 1001 � VPM VC 0011 � �...

  • Page 10: Installation

    As addition to MPA parameterisation and service box for setting VPM parameters via a PC/laptop. Subject to technical modification in the interest of technical progress. Company address Postal address Karl Dungs GmbH & Co. KG Karl Dungs GmbH & Co. KG Karl-Dungs-Platz 1 Postfach 12 29 D-73660 Urbach, Germany...

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