2 | INSTALLATION
15
Model
9000-1
12000-1
18000-1
24000-1
Liquid line
connection
mm
6,35
6,35
6,35
6,35
Gas line
connection
mm
9,52
9,52
12,70
12,70
Charge
connection
mm
12,70
12,70
12,70
12,70
To access the cooling connections:
- unscrew the fastening screw
- push down the connection covering panel
- remove the connection covering panel
The cooling pipes must respect the lengths and differences in height as
indicated in the following table.
Use pipes with the thickness indicated in the following table:
Model
9000-1
12000-1
18000-1
24000-1
Connection pipes
A
m
10
10
15
15
B
m
15
15
25
25
Maximum
length with
standard
charge
m
5
5
5
7
Additional
charge
g/m
20
20
20
20
Pipe Ø
Thickness
mm
inches
mm
6.35
1/4
0.8
9.52
3/8
0.8
12.7
1/2
0.8
15.88
5/8
1
Maximum operating pressure 4.3 Mpa.
In case of a drop in excess of 5 m, a siphon must be installed every
5-7 metres.
The given measures are the maximum permitted values.
Cooling connections featuring shut-off valves are preconfigured for
flare connections.
Cooling lines must be as straight as possible and any necessary
bends must have a radius grater than 40 mm.
Use clean hoses. Make sure the inside is free of dust, residues,
water.
Avoid the entry of uncondensable gases (air) in the circuit, otherwise,
with the unit in operation, high pressures with the risk of damages
might ensue.
Use copper pipes for cooling systems.
Use connecting pipes and tools appropriate for the system's
refrigerant.
It is forbidden to use second-hand cooling lines since their flare
connection seal is not guaranteed.
It is forbidden to use pre-charged cooling lines.
It is forbidden to carry out welding operations with refrigerant inside
the cooling circuit. If necessary, the refrigerant must be recovered
and the circuit must be cleaned with nitrogen without oxygen.
Connections
- position the connecting pipes
Before threading the lines through the hole in the wall, close the lines
ends.
- cut the pipe end square using a pipe cutter
- remove burrs keeping the cut edge facing down
- remove the flare nut on the unit connection
- insert it into the connection pipe
- flare the tube
Pipe Ø
A
mm
inches
mm
6.35
1/4
9.1
9.52
3/8
13.2
12.7
1/2
16.6
15.88
5/8
19.7
