Krom Schroder VAD, Operating Instructions Manual

Page: 1 / 19

DK S N P GR
➔
www.docuthek.com
D GB F NL I E
TR CZ PL RUS H
Cert. version 03.17
© 2019 Elster GmbH · Edition 01.19
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 ,  , 3
... = 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 0.18
The following chapters have been changed:
– Installation
– Technical data
– Logistics
– Certification
Contents
Operating instructions
D
GB
F
NL
I
E
GB-1
0350481
Translation from the German
Pressure regulators with solenoid
valve VAD, VAG, VAV, VAH
Flow rate regulator VRH
Pressure regulators with
double solenoid valve
VCD, VCG, VCV, VCH
Pressure regulators with solenoid valve
VAD, VAG, VAV, VAH . . . . . . . . . . . . . . . . . . . . 1
Flow rate regulator VRH . . . . . . . . . . . . . . . . . 1
Pressure regulators with double solenoid
valve VCD, VCG, VCV, VCH . . . . . . . . . . . . . . . 1
Checking the usage . . . . . . . . . . . . . . . . . . . . . 
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installing the gas/air control lines . . . . . . . . . 5
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Tightness test . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . 9
Replacing the actuator . . . . . . . . . . . . . . . . . 11
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Pressure switch for gas DG..VC. . . . . . . . . . . . 11
Bypass/pilot gas valves . . . . . . . . . . . . . . . . . . 12
Checking the bypass/pilot gas valve for
tightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Cable gland set for double solenoid valves. . . . 14
Attachment block. . . . . . . . . . . . . . . . . . . . . . . 15
Seal set for sizes 1 – 3 . . . . . . . . . . . . . . . . . . . 15
Cable gland with pressure equalization element 15
Technical data . . . . . . . . . . . . . . . . . . . . . . . . 16
Logistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Certification . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0