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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
V E N T I L A T I O N & H E A T R E C O V E R Y
9
Maintenance schedule B – carry out every 5 years
(specialists only)
We recommend that the activities specified in maintenance schedule B be carried out
every 5 years. However, various factors (air quality, site of operation etc.) may require
a shorter maintenance interval, e. g. if you identify a lot of soiling on the heat exchanger
during the annual visual inspection (see section 8.9 on page 16).
WARNING
The activities described in this chapter must only be carried out by specialists with the
following qualifications:
—
Training and knowledge of how to inspect, clean and maintain ventilation units
— Training in the installation and commissioning of electrical devices
— Training in electrical hazards and the local safety requirements
— Knowledge of the relevant standards and directives
— Knowledge and observance of this document and all the safety instructions
9.1
Switch off power to the ventilation unit
DANGER
Potentially fatal voltages
► Disconnect the ventilation unit’s mains cable on all poles from the mains supply
(e. g. using the customer’s circuit-breaker) before starting any maintenance work.
► Observe the five safety rules (DIN VDE 0105-100, EN 50110-1) for working on elec
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trical systems:
— Disconnect from mains (all-pole disconnection of a system from live parts)
— Secure against reconnection
— Check that the system is voltage-free
— Earth and short-circuit
—
Cover or block off access to adjacent live parts