Haier AD90S2SM3FA Manuel D'installation page 6

•A brazed, welded, or mechanical connection shall be made before opening the valves to permit refrigerant
to flow between the refrigerating system parts. A vacuum valve shall be provided to evacuate the
interconnecting pipe and/or any uncharged refrigerating system part.
•The maximum working pressure is 4.3 MPa.
•This maximum working pressure shall be considered when connecting the outdoor unit to indoor unit.
•The refrigerant suitable for the indoor unit is R32 or R410A. The indoor unit shall only be connected to
outdoor unit suitable for the same refrigerant.
•The unit is a partial unit air conditioner, complying with partial unit requirements of the International
Standard, and must only be connected to other units that have been confirmed as complying to
corresponding partial unit requirements of the International Standard.
•The A-weighted sound pressure level is below 70 dB.
•The maximum refrigerant charge amount (kg), and the minimum floor area (m2) of the room in which the
indoor unit will be installed, are specified in the table on the page 8.
•Pipe-work shall be protected from physical damage and, in the case of flammable refrigerants, shall not be
installed in an unventilated space, if the space is smaller than that specified in the table on the page 8
•The installation of pipe-work shall be kept to a minimum.
•Compliance with national gas regulations shall be observed.
•Mechanical connections shall be accessible for maintenance purposes.
•Handling, installation, cleaning, servicing and disposal of refrigerant shall be carried out as per the
specifications on the following pages strictly.
•Warning: Keep any required ventilation openings clear of obstruction.
•Notice: Servicing shall be performed only as recommended by this manual instruction.