5
AFTER SALES SUPPORT
1300 886 649
AUS
MODEL: PA19W PRODUCT CODE: 703227 11/2020
Service Instructions (Cont.)
1.6 Ventilated area
Ensure that the area is in the open or that it is adequately ventilated
before breaking into the system or conducting any hot work. A degree of
ventilation shall continue during the period that the work is carried out. The
ventilation should safely disperse any released refrigerant and preferably
expel it externally into the atmosphere.
2. Checks to the refrigeration equipment
2.1 Where electrical components are being changed, they shall be fit for the
purpose and to the correct specification. At all times the manufacturer’s
maintenance and service guidelines shall be followed. If in doubt, consult
the manufacturer’s technical department for assistance.
2.2 The following checks shall be applied to installations using flammable
refrigerants:
– 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.
3. Checks to electrical devices
3.1 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.
3.2 Initial safety checks shall include:
– that capacitors are discharged: this shall be done in a safe manner to
avoid possibility of sparking
– that no live electrical components and wiring are exposed while charging,
recovering or purging the system
– that there is continuity of earth bonding.
