DC Inverter U-match Series for R410A Unitary Split Air Conditioner
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4.3.4 Maintenance at the End of the Using Season
(1) Cut off the main power of air conditioner.
(2) Clean the dust and sundries in outdoor unit.
(3) If the outdoor unit is rusty, coat the rusty location with paint to prevent it from
expanding.
4.3.5 Components Replacement
Components are available in
$&352
agency or
$&352
distributors nearby.
4.4 Notice on Maintenance
4.4.1 Information on Servicing
The manual shall contain specific information for service personnel who shall
be instructed to undertake the following when servicing an appliance that employs a
flammable refrigerant.
4.4.1.1 General Work Area
All maintenance staff and others working in the local area shall be instructed on
the nature of work being carried out. Work in confined spaces shall be avoided. The
area around the workspace shall be sectioned off. Ensure that the conditions within
the area have been made safe by control of flammable material.
4.4.1.2 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.
4.4.1.3 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.
