N Series Floor Ceiling Type Unit
19
(5) Plugs and dr ainage connector are not recommended if there is an
electrical heater on the chassis.
3.2.3 Connection Pipe Requirement
3.2.3.1 Installation Notice and Requirement on Connection Pipe
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.
Item
Model
Size of Fitting
Pipe(inch)
Maximum
pipe
length(m)
Biggest
drop
between
indoor and
outdoor
units (m)
Drainage
pipe(Outer
Diameter ×
wall thickness)
(mm)
Liquid
Gas
Φ1/4
Φ1/2
30
15
Φ17×1.5
Φ3/8
Φ5/8
30
15
Φ17×1.5
30
15
Φ17×1.5
30
20
Φ17×1.5
50
30
Φ17×1.5
50
30
Φ17×1.5
50
30
Φ17×1.5
Connection pipe should adopt water-proof insulating material. Its wall thickness
should be 0. 5-1.0mm and t he pipe wall should be ab le to withstand 6.0MPa. The
longer the connection pipe is, the worse cooling and heating performance it has.
CH-F050NK
CH-F071NK
CH-F085NK
CH-F100NK
CH-F125NK
CH-F140NK
CH-F160NK
