ESKA ERG-H5, Installation Use And Care Manual, Page: 15 / 32

Page 15 of 32
7. PERIODICAL MAINTENANCE AND INSPECTION
A. BEFORE
Periodic maintenance-inspection is recommended for the intact and safe operation of the product.
For all operations, full compliance with the rules in this manual must be ensured. This manual should always be with you before, during
and after periodic maintenance-inspection and all rules in this manual should be followed. If you think there is any incomplete and
incorrect information, contact the manufacturer and do not carry out any further operation.
No repairs on the product should be carried out by the user. All repair operations should be carried out by authorized services and
personnel. Users or non-authorized persons should not intervene in the product or in the line in case of any malfunction. The parts that
may needed to be disassembled for repair in the product can be removed and installed with normal hand tools and are formed sin such
way that they are not installed incorrectly. To prevent personal injuries or damage to equipment, do not perform any maintenance or
disassembly without separating the product from the system pressure and draining all internal pressure, as described in the "Shut-Off"
section. It is important to ensure that the product is isolated from the inlet and outlet pressure and that the pressure between the
product and outlet valve section of the line has been discharged. Prevent explosive gas-air mixture: constantly control the air of the room
for gas leakage with a suitable gas concentration measurement device.
The plant shall be equipped with discharge devices and systems to discharge the pressure and fluid from the plant before any inspection
and maintenance operations.
The maintenance process is closely associated with the quality of transporting of gas (particles, humidity, gasoline, corrosive substances)
and the efficiency of filtering.
In any case, make sure that there is no pressurized gas in the product before performing any maintenance operation.
The periodic maintenance-inspection intervals should not exceed the intervals specified by the gas organization or the related legislation.
The maintenance time shall be adjusted according to the working conditions.
If not determined by rules, the time period of preventive maintenance depends on the following conditions:
1- The quality of gas transportation
2- Cleaning and protection of the pipeline before the product: in general, after commissioning, maintenance may be required very
often, since the pipeline is not clean enough.
3- The level of reliability required by the regulatory system
Perform maintenance of the product’s parts with an "EITHER CLEAN OR REPLACE" approach.
B. DURING
In any case, do not apply abrupt discharge to clean the line after the product or to carry out maintenance-repair operations on the
product.
Disassemble the product from the line in accordance with the disassembly rules specified in this manual. Before starting the process,
ensure that the gas in front of and behind the product is turned off. Make sure that the fasteners (screws and/or bolts-nuts) in the
product are screwed and unscrewed with the specified torques. For this purpose, use a calibrated device and keep it with you. Install the
covers exactly in the same place again using the same screws, without applying any contraction and straining on the screws and by
reciprocal tightening without applying excessive force so that the holes overlap completely and make sure that they do not remain loose
and are not exposed to any mechanical damage. If there is any paint-lacquer etc. on the fasteners, do not perform any process and
contact the manufacturer first.
If necessary, do not disassemble the parts inside the enclosures which you have removed separately, hold the enclosures as a group with
the parts inside clean them slowly with a clean cloth.
If a problem will be identified during the periodic maintenance and inspection, necessary actions shall be taken according to the rules
described in the failures chapter.
Maintenance intervals depend on system-specific operating and ambient conditions, gas quality, the condition of pipelines, etc. The
maintenance intervals should be determined by the operator of the system in a system-specific manner. The inspection/control and
replacement frequencies depend on the severity of the terms of service and applicable national laws, regulations, standards and
directive/recommendations. We recommend function control on a monthly basis and maintenance on an annual basis to ensure that the
system shall remain operative. At worst, function control on an annual basis and maintenance on a biennially basis may be preferred.
The pressure equipment directive (PED) and the energy performance of buildings directive (EPBD) stipulate a regular control of heat
generators to ensure high efficiency and therefore low emissions to the environment in long terms.