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Krom Schroder VAS Series - User Manual

Krom Schroder VAS Series
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DK S N P GR
www.docuthek.com
D GB F NL I E
TR CZ PL RUS H
Cert. version 07.19
© 2019 Elster GmbH · Edition 07.19
Safety
Please read and keep in a safe place
Please read through these instructions
carefully before installing or operating. Following the
installation, pass the instructions on to the opera-
tor. This unit must be installed and commissioned
in accordance with the regulations and standards
in force. These instructions can also be found at
www.docuthek.com.
Explanation of symbols
, 1 , , ... = Action
= Instruction
Liability
We will not be held liable for damage resulting from
non-observance of the instructions and non-com-
pliant use.
Safety instructions
Information that is relevant for safety is indicated in
the instructions as follows:
DANGER
Indicates potentially fatal situations.
WARNING
Indicates possible danger to life and limb.
CAUTION
Indicates possible material damage.
All interventions may only be carried out by qualified
gas technicians. Electrical interventions may only be
carried out by qualified electricians.
Conversion, spare parts
All technical changes are prohibited. Only use OEM
spare parts.
Changes to edition 10.17
The following chapters have been changed:
– Installation
– Accessories
Technical data
Safety instructions
– Logistics
– Certification
Contents
Operating instructions
D
GB
F
NL
I
E
GB-1
050
Translation from the German
Solenoid valve for gas VAS 1–,
double solenoid valve VCS 1–
Solenoid valve for gas VAS 1–,
double solenoid valve VCS 1–...........1
Contents ..............................1
Safety.................................1
Checking the usage .....................
Installation ............................
Wiring ................................4
Tightness test ..........................6
Commissioning.........................6
Replacing the actuator ..................6
Replacing the damping unit ..............8
Maintenance ...........................8
Accessories ...........................9
Pressure switch for gas DG..VC.............9
Bypass/pilot gas valves ...................9
Checking the bypass/pilot gas valve for
tightness .............................11
Tightness control TC 1V .................. 11
Cable gland set for double solenoid valves....12
Attachment block.......................12
Seal set for sizes 1 3 ...................13
Cable gland with pressure equalization
element ..............................13
Technical data ........................1
Air flow rate Q.........................14
Safety information in accordance with
EN61508- ...........................14
Designed lifetime ......................15
Logistics .............................15
Certification ..........................15
Contact ..............................16
Safety
Contents
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Krom Schroder VAS Series Specifications

General IconGeneral
BrandKrom Schroder
ModelVAS Series
CategoryControl Unit
LanguageEnglish

Summary

Operating Instructions

Safety Information

Provides crucial safety guidelines, warnings, and symbol explanations for safe operation.

Explanation of Symbols

Defines symbols used in the document for instructions, actions, and components.

Liability and Conversion Rules

States liability disclaimer for non-compliance and prohibits unauthorized modifications.

Edition Changes

Valve Usage and Identification

Intended Use

Defines the proper application of gas solenoid valves and identifies non-compliant usage.

Valve Type Code System

Details the coding structure used to specify valve models, sizes, and features.

Component Part Designations

Identifies and labels the physical components of the solenoid valve assembly.

Installation Procedures

Installation Position and Clearance

Specifies correct orientation and required space for valve installation to ensure proper function.

Required Installation Components

Details essential components like strainers and differential pressure orifices for safe and effective installation.

Mounting Configurations

Illustrates different mounting methods for valves, with or without flanges, noting flow direction.

Electrical Wiring

Wiring Standards and Requirements

Outlines wiring compliance with EN 60204-1 and specific UL requirements for the NAFTA market.

Electrical Connection Types

Describes the methods for making electrical connections using plugs or M20 cable glands.

Socket Connections

Proof of Closure Switch Wiring

Explains how to wire the proof of closure switch for monitoring valve status.

Finishing Wiring Connections

Guides on completing the wiring process, including reconnecting terminals and ensuring proper setup.

Operational Checks and Adjustments

Tightness Testing

Provides a step-by-step procedure for checking the gas tightness of the solenoid valve.

Commissioning and Flow Rate Setting

Details the commissioning process and how to adjust the valve's flow rate using the cover cap.

Damping Speed Adjustment

Explains how to adjust the valve's opening speed by modifying the damping unit's nozzle screw.

Actuator Replacement

Replacing Actuator (No Damping)

Step-by-step guide for replacing the actuator on valves that do not have a damping unit.

Replacing Actuator (With Damping)

Detailed instructions for replacing the actuator on valves equipped with a damping unit.

Maintenance and Component Replacement

Replacing the Damping Unit

Provides instructions for removing and replacing the damping unit of the solenoid valve.

Routine Maintenance Tasks

Covers regular checks for tightness, electrical installations, strainer cleaning, and seal replacement.

Accessories and Options

Pressure Switches

Describes the function and application of pressure switches for monitoring gas pressures.

Bypass and Pilot Gas Valves

Details the VBY bypass and pilot gas valves, including their components and function.

Mounting Bypass;Pilot Valves

Guides on the correct procedure for mounting bypass and pilot gas valves onto the main unit.

Setting Bypass;Pilot Valve Flow Rate

Mounting Bypass;Pilot Valves (VAS 1;2;3)

Covers the scope of delivery and mounting procedures for bypass/pilot valves on different VAS valve sizes.

Valve Tightness and Control Checks

Checking Bypass;Pilot Valve Tightness

Provides instructions for performing a tightness test on bypass and pilot gas valves.

Tightness Control TC 1 V Installation

Details the connection and installation of the TC 1V tightness control device.

Special Connection Components

Cable Gland Set for Double Valves

Explains the use and ordering of cable gland sets for wiring double solenoid valves.

Attachment Block for Accessories

Describes the purpose and mounting of the attachment block for installing pressure gauges or accessories.

Technical Data and Specifications

Ambient and Mechanical Data

Specifies operating environment conditions, gas types, pressure limits, and standards compliance.

Seal Sets and Cable Glands

Details seal set contents for maintenance and a special cable gland for condensation prevention.

Electrical Data and Power Consumption

Air Flow Rate Charts

Presents air flow rate data for various valve models at different pressure loss conditions.

Safety Standards Reference

Refers to specific technical information regarding safety standards like EN 61508-2.

Product Lifecycle and Compliance

Designed Lifetime and Service Life

States the designed operational lifetime based on switching cycles and years for different valve types.

Logistics and Disposal

Covers guidelines for transport, storage, packaging, and environmentally compliant disposal of the product.

Certification and Safety Ratings

Details product certifications, declarations of conformity, and safety integrity level (SIL/PL) ratings.

Approvals and Contact Information

Agency Approvals

Lists various agency approvals and certifications obtained by the product, including UL, FM, and CSA.

RoHS Compliance and Contact Details

Mentions China RoHS compliance and provides contact information for technical inquiries and company data.

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