Krom Schroder VAS Series Operating Instructions Manual Download Page 15

GB-15

D

GB

F

NL

I

E

Designed lifetime

This information on the designed lifetime is based on 

using the product in accordance with these operating 
instructions. Once the designed lifetime has been 
reached, safety-relevant products must be replaced.
Designed lifetime (based on date of manufacture) in 
accordance with EN 13611, EN 161 for VAS:

Type

Designed lifetime

Switching cycles Time [years]

VAS 110 – VAS 225

500,000

10

VAS 232 – VAS 365

200,000

10

You can find further explanations in the applicable 

rules and regulations and on the afecor website 
(www.afecor.org).

This procedure applies to heating systems. For 

thermoprocessing equipment, observe local regu-
lations.

Logistics

Transport

Protect the unit from external forces (blows, shocks, 
vibration). 

Transport temperature: see page  13 (Technical 

data).

Transport is subject to the ambient conditions de-

scribed.
Report any transport damage on the unit or packag-
ing without delay.
Check that the delivery is complete, see page 2 
(Part designations). 

Storage

Storage temperature: see page 13 (Technical data).
Storage is subject to the ambient conditions de-
scribed.
Storage time: 6 months before using for the first 
time. If stored for longer than this, the overall service 
life will be reduced by the corresponding amount of 
extra storage time.

Packaging

The packaging material is to be disposed of in ac-

cordance with local regulations.

Disposal

Components are to be disposed of separately in 
accordance with local regulations.

Certification

Declaration of conformity

We, the manufacturer, hereby declare that the prod-

ucts VAS with product ID No. CE-0063BO1580 com-
ply with the requirements of the listed Directives and 
Standards.
Directives:

– 

2014/35/EU – LVD

– 

2014/30/EU – EMC

– 

2011/65/EU – RoHS II

– 

2015/863/EU – RoHS III

Regulation:

– 

(EU) 2016/426 – GAR 

Standards:

– 

EN 161:2011+A3:2013

– 

EN 126:2012

– 

EN 1854:2010

The relevant product corresponds to the tested type 

sample.

The production is subject to the surveillance proce-

dure pursuant to Regulation (EU) 2016/426 Annex III 
paragraph 3.
Elster GmbH

Scan of the Declaration of conformity (D, GB) – see 
www.docuthek.com

SIL, PL

The solenoid valves VAS 1 – 3 are suitable for single-

channel systems (HFT = 0) up to SIL 2/PL d, and up 
to SIL 3/PL e when two redundant solenoid valves are 
installed in a double-channel architecture (HFT = 1), 
provided that the complete system complies with the 
requirements of EN 61508/ISO 13849. The safety 
function value which is actually achieved is derived 
by taking all components into account (sensor – logic 

– actuator). For this, the demand rate and structural 

measures to avoid/detect nonconformity are to be 
observed (e.g. redundancy, diversity, monitoring).

Characteristic values for SIL/PL: HFT = 0 (1 de-
vice), HFT = 1 ( devices), SFF > 90, DC = 0, 
type A/category B, 1, , , 4, high demand mode, 
CCF > 65, β ≥ .

PFH

D

=

λ

D

=

1

= 0.1 x n

op

MTTF

d

B

10d

VAS

B

10d

 value

Size 1

15,845,898

Sizes 2 – 3

15,766,605

Summary of Contents for VAS Series

Page 1: ...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 c...

Page 2: ...ve is not damaged during installation and operation Sealing material and dirt e g thread cuttings must not be allowed to get into the valve hous ing A filter must be installed upstream of every sys te...

Page 3: ...lenoid valve VAS 1 a DN 25 differential pressure orifice with outlet opening d 30 mm 1 18 must be inserted at the outlet of the pressure regulator In the case of pressure regulator VAx 115 or VAx 120...

Page 4: ...ing Type 2 the en closure openings shall be closed with fittings rated UL Type 2 3 3R 3RX 3S 3SX 3X 4X 5 6 6P 12 12K or 13 Gas solenoid valves shall be protected by a branch circuit protective device...

Page 5: ...re is a risk of interference between valve voltage and proof of closure switch voltage To make wiring easier the connection terminal for the proof of closure switch can be removed 1 3 2 LV1 N 1 3 2 LV...

Page 6: ...if the adjusting screw is overturned Setting the start gas rate on VAS L VCS L The start gas rate can be set by turning the damping unit a maximum of 5 turns There must be a period of 20 seconds betwe...

Page 7: ...VAS 2 3 use the small seal from the actuator adapter set and only one of the large seals VAS 1 3 10 11 Slide seal under the second groove 12 Position new actuator 13 Follow the reverse procedure when...

Page 8: ...4 5 3 10 9 Maintenance CAUTION In order to ensure smooth operation check the tightness and function of the VAS Once per year twice per year in the case of biogas check for internal and external tight...

Page 9: ...ion from the switching point during testing pursuant to EN 1854 Gas pressure switches 15 Bypass pilot gas valves 1 Disconnect the system from the electrical power supply 2 Shut off the gas supply 3 Pr...

Page 10: ...10 mm 0 39 at the outlet of the main valve if the bypass valve s outlet flange is designed as a blind flange For the pilot gas valve insert sealing plug F at the outlet of the main valve if the pilot...

Page 11: ...s piloto ppna bypass eller t ndgasven tilen pne bypass eller tenn gassventilen Otev t obto kov ventil nebo zapalovac plynov ventil Otworzy zaw r obej ciowy lub zaw r gazu zap onowego Tightness control...

Page 12: ...nnect the system from the electrical power supply Shut off the gas supply 16 5 4 3 8 7 6 9 10 13 12 11 15 14 In both connection boxes push through the knock out for the cable gland set then remove the...

Page 13: ...AMSL Ambient temperature 20 to 60 C 4 to 140 F no condensation permitted Long term use in the upper ambient temperature range accelerates the ageing of the elastomer ma terials and reduces the servic...

Page 14: ...3 A VAS G 12 30 V DC 2 mA 0 1 A Switching frequency of proof of closure switch max 5 x per minute Switching current A Switching cycles cos 1 cos 0 6 0 1 500 000 500 000 0 5 300 000 250 000 1 200 000 1...

Page 15: ...in ac cordance with local regulations Disposal Components are to be disposed of separately in accordance with local regulations Certification Declaration of conformity We the manufacturer hereby decl...

Page 16: ...earch Class 7400 and 7411 Safety overpressure slam shut valves Designed for applications pursuant to NFPA 85 and NFPA 86 ANSI CSA approved Canadian Standards Association ANSI Z21 21 and CSA 6 5 UL lis...

Reviews: