Haier AW042MUGHA Installationsanleitung Seite 12

Safety
A leakage breaker may be required depending on installation site conditions to
prevent electrical shocks.
Do not install the equipment in an area where combustible gas leaks may occur as
this can cause a fire.
Must confirm that parts and wires are properly mounted and connected, and that
connections at soldered or crimped terminals are secure. Improper installation or
connections can cause excessive heat, fire or electrical shocks.
Must ensure to replace corroded installation platforms or frames as it can cause the
unit to fall and result in injury.
Must ensure proper earthing/grounding and repair if necessary. Improper
earthing/grounding can cause electrical shocks.
Must measure insulation resistance after repair and ensure that the resistance is 1
MΩ or above. Faulty insulation can cause an electrical shock.
Must check the drainage of the indoor unit after repair. Faulty drainage can cause
water damage to furniture and flooring.
Do not tilt the unit when removing it. Water inside the unit may spill and damage
furniture or flooring.
2. Precaution for using R290 Refrigerant
Please pay attention to the following points:
Do not mix any different refrigerants within a system.
Well trained and certified personnel are required for operating, maintaining, repairing,
and recovering the flammable refrigerants, and also for conducting any operation,
servicing and maintenance on a system or relevant parts of the units.
Do not store any of the parts of refrigeration circuit or pipes near sources of fire, such
as open flames, gas appliances, or electric heaters.
The alarms, mechanical ventilation and detectors must be checked regularly by users
or the authorized dealer at least once a year based on the national rules to ensure
correct operation.
It is necessary to keep a logbook and record all outcomes of these checks.
Ventilation in occupied areas must be checked to make sure there are no any
obstructions.
CAUTION
WARNING
5