Gree U-match Série Manuel De L'utilisateur page 65

5.4.1.7 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 s hall
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.
5.4.1.8 Checks to the Refrigeration Equipment
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.
The following checks shall be applied to installations using flammable
refrigerants:
(1) The charge size is in accordance with the room size within which the
refrigerant containing parts are installed.
(2) The ventilation machinery and outlets are operating adequately and are not
obstructed.
(3) If an indirect refrigerating circuit is being used, the secondary circuit shall be
checked for the presence of refrigerant.
(4) Marking to the equipment continues to be visible and legible. Markings and
signs that are illegible shall be corrected.
(5) 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.
5.4.1.9 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
DC Inverter U-match Series Cassette Type Unit
61