INSTAllATION
12
Model
25
35
50
70
Connections
Liquid line connection
1/4
Pollici
Gas line connection
3/8
1/2
Pollici
Liquid line connection
6,35
mm
Gas line connection
9,52
12,7
mm
Connection outlet directions are indicated below.
A
A
A
B
B
In case of connection in directions A:
—
remove the relevant pre-trimmed part on the cover cab-
inet
In case of connection in directions b:
MODEl 25 - 35
Ø60
120
30
Ø60
110
30
MODEl 50
Ø70
150
30
Ø70
120
30
MODEl 70
Ø60
70
45
Ø60
113
45
—
mark the through hole as shown in the illustration
A Inner side
B Outer side
1 Plastic tube
2 Connections
5 - 6 mm
A
2
1
B
—
drill the through hole into the wall
—
keep a downward inclination toward the external side
—
insert a plastic tube in the hole in order to protect the con-
nections
—
introduce the supplied hole protection insert on the inter-
nal side of the wall
—
seal with stucco
9
For indications concerning distances and differences in
height of connection pipes, refer to the matching outdoor
unit manual.
9
Use clean hoses. Make sure the inside is free of dust, resi-
dues, water.
9
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.
9
Use copper pipes for cooling systems.
0
It is forbidden to use second-hand cooling lines since their
flare connection seal is not guaranteed.
0
It is forbidden to use pre-charged cooling lines.
0
It is forbidden to carry out welding operations with refrig-
erant inside the cooling circuit. If necessary, the refrigerant
must be recovered and the circuit must be cleaned with ni-
trogen without oxygen.
