72 … 72
MC • Edition 05.20 • Nº 279 663
The Pressure Equipment Directive
97/23/EC and the Energy Perfor
-
mance of Buildings Directive (EPBD)
require a periodic inspection of heat
generators in order to ensure a high
degree of efficiency over a long term
and, consequently, the least environ
-
mental pollution.
We reserve the right to make modifications in the course of technical development.
Safety relevant component
Designed Lifetime
CEN-Standard
Operating cycles
Time
[years]
Valve testing systems
250,000
10
EN 1643
Gas Pressure switch
50,000
10
EN 1854
Air Pressure switch
250,000
10
EN 1854
Low gas pressure switch
N/A
10
EN 1854
Automatic burner control
250,000
10
EN 298 (Gas)
EN 230 (Oil)
Flame detector UV
1
N/A
10,000
Operating
hours
---
Gas pressure regulators
1
N/A
15
EN 88-1
EN 88-2
Gas valve with valve testing system
2
after error detection
EN 1643
Gas valve without valve testing system
2
50,000 - 200,000
based on the nominal
diameter
10
EN 161
Combined gas/air systems
N/A
10
EN 12067-2
EN 88-1
1
Decreased efficiency of operating characteristics due to ageing
2
Gas families I, II, III
N/A not applicable
It is necessary to replace safety-
relevant components after they
have reached the end of their
useful life. This recommendation
applies only to heating systems,
but not to thermal process ap-
plications. DUNGS recommends
changing components based on
the following table:
Karl Dungs GmbH & Co. KG
Karl-Dungs-Platz 1
D-73660 Urbach,
Germany
Telephone +49 (0)7181-804-0
Fax
+49 (0)7181-804-166
e-mail: [email protected]
Internet: www.dungs.com
Company address:
Subsidiary:
Karl Dungs, S.L.U.
Av. Can Roqueta 15
Pol. Ind. Can Roqueta
E-08202 Sabadell, Barcelona/Spain
Phone +34-935647550
e-mail: [email protected]
Internet: www.dungs.com