26
SELECTION OF THE REFRIGERANT CONNECTION
LINES
COOLING CONNECTIONS
• R32 refrigerant.
• Use copper pipes for gas and liquid, as indicated
in the relative table (see the connection pipes
table).
• Before assembling the insulated copper pipes on
the refrigerant lines, seal both ends of each pipe
to protect the inside from dust and humidity. The
inside of the pipes must be perfectly clean and
free of any foreign bodies.
• Try to avoid bending the pipes. If you must bend
them, the bend radius should be greater than
100mm.
WARNING
• The above table shows the quantity of
refrigerant gas to add, according to the
models, for each additional metre of piping.
• The pipe wall must be at least 0.8mm thick,
and the pipe must be able to withstand a
pressure of 6.0 MPa.
• The longer the connection pipe, the lower the
level of efficiency
REFRIGERANT PIPES
Indoor units
SGE250W
SGE350W
SGE500W
SGE700W
Outdoor units
SGE250
SGE350
SGE500
SGE700
Refrigeration pipework
Maximum refrigerant tube
length
m
25
25
30
50
Maximum (indoor/outdoor)
cooling line level difference
m
10
10
20
25
Refrigerant to be added
g/m
12
12
12
24
Compressor
Refrigerant charge
kg
0,55
0,55
1,08
1,42
Refrigeration pipework
Diameter of liquid refrigerant
connections
mm
(inch)
6,35 (1/4”)
6,35 (1/4”)
6,35 (1/4”)
9,52 (3/8”)
Diameter of refrigerant gas
connections
mm
(inch)
9,52 (3/8”)
9,52 (3/8”)
12,7 (1/2”)
15,9 (5/8”)
Summary of Contents for SGE250
Page 2: ......
Page 17: ...17 TECHNICAL DIMENSIONS SGE250 SGE350 SGE500 mm mm ...
Page 18: ...18 SGE700 mm ...
Page 29: ...Fig A Fig C Fig E Fig B Fig D Fig F 29 ...
Page 50: ...50 ...
Page 51: ...51 ...
