Operating and Installation Instructions
herose.com
Page 14
7.3. Maintenance and Repair of the Valve
The maintenance and maintenance intervals must be specified by the operator
according to the conditions of use, see BetrSichV [
German Health and Safety
Regulations
] and the associated TRBS [
Technical Rules for Operating Safety
]
Series 1000 and 2000.
All maintenance, repair and commissioning work must only be carried out by
qualified personnel who are familiar with the installation, commissioning and
operation of the product.
Hazards may be caused by the operating pressure during maintenance or
dismantling. The section of the system must be depressurised. The Combi-
Regulator must be removed from the piping for maintenance.
During (external) cleaning, take care that no chemical agents are used which
affect the properties of the materials. During cleaning, take care that the
adjustment of the set point screw is not changed and that the lock nut is firmly
screwed against the spring cover.
During repairs, maintenance and cleaning, the condensation drain hole in the
spring cover must be visually inspected regularly and any dirt must be removed.
Repairs may only be performed by HEROSE or by specialist workshops
authorised by HEROSE, with the exclusive use of original spare parts. The contact
details for workshops authorised by HEROSE can be found on the HEROSE
homepage (http://www.herose.com).
7.4. Dismantling the Valve
In addition to the generally valid installation guidelines and the BetrSichV [
German
Health and Safety Regulations
] and its TRBS [
Technical Rules for Operating
Safety
] Series 1000 and 2000, the following points must be observed:
The piping system must be depressurised
The medium and the valve must be cooled to the ambient temperature
The system must be drained
Purge the piping system in case of aggressive or caustic media
Installation must only be performed by "Qualified personnel" (see Section
3.4)
Escaping Medium
Hazard to humans and the environment
Take safety precautions appropriate to the medium
Collect the medium from the piping system
Do not allow unauthorised persons into the danger area.
Wear suitable protective equipment
