Innova IGZDUP35V2NI-1 Owner's Manual page 22

(1) The air conditioner must be installed in a room that is larger than the minimum
room area. And it is not allowed to use in a room that has running fire.
(2) Before break the connection pipes between indoor and outdoor units， eliminate
the refrigerant first and make sure there is no fire source or potential fire
source in the maintenance area. And make sure the area is well-ventilated.
(3) The tamperproof box should not be overlapped during installation and must be
completely covered with the accompanied insulated pipe before wrapping.
Installation method: Connect the connection pipes first to the indoor unit and
then to the outdoor unit. When bending a connection pipe, be careful not to damage
the pipe. Do not over-tighten the screw nut, otherwise leakage will occur. Besides,
the outside of connection pipe should be added with a layer of insulating cotton to
protect it from mechanical damage during installation, maintenance and
transportation.
Model
IGZDUP35V2NI-1
IGZDUP50V2NI-1
IGZDUP71V2NI-1
IGZDUP85V2NI-1
IGZDUP100V2NI-1
IGZDUP125V2NI-1
IGZDUP140V2NI-1
IGZDUP160V2NI-1
Connection pipe should adopt water-proof insulating material. Its wall thickness
should be 0.5-1.0mm and the pipe wall should be able to withstand 6.0MPa. The
longer the connection pipe is the worse cooling and heating performance it has.
Size of Fitting
Item
Pipe(inch)
Liquid
pipe
Ф1/4
Φ3/8
NOTES!
Maximum
pipe length
Gas
(m)
pipe
Φ3/8 30
Φ1/2 30
30
30
75
Φ5/8
75
75
75
18
Biggest drop
between indoor and
outdoor units (m)
15
20
20
25
30
30
30
30