Haverland DES19 User Manual page 38

Safety Precautions On Servicing
Checks to the refrigeration equipment
doubt consult the manufacturer's technical department for assistance.
- The charge size is in accordance with the room size within which the refrigerant containing parts are
installed;
- The ventilation machinery and outlets are operating adequately and are not obstructed;
- If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence
of refrigerant;
- Marking to the equipment continues to be visible and legible. Markings and signs that are illegible
shall be corrected;
- Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to
any substance which may corrode refrigerant containing components, unless the components are
constructed of materials which are inherently resistant to being corroded or are suitably protected
against being so corroded.
Checks to electrical devices
Repair and maintenance to electrical components shall include initial safety checks and component
inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be
connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately
but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be
reported to the owner of the equipment so all parties are advised.
Initial safety checks shall include:
- Those capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking;
- That there no live electrical components and wiring are exposed while charging, recovering or
purging the system;
- That there is continuity of earth bonding.
Releasing refrigerant into atmosphere is strictly forbidden!
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