28
Installation
WARNING! The laying of the lines and the
refrigerant connections must be carried out by
a qualified refrigerant circuit technician.
The refrigeration circuit must be connected to the condensing
unit with copper pipes.
The diameter of the pipes must be chosen according to the
length of the refrigerant line itself (preferably less than 30 m)
therefore it is possible that the internal diameter of the rotalock
valves supplied by Uniflair will not coincide with the diameter
of the pipes, see note at page bottom. To connect the
refrigeration circuit to the condensing unit, carry out the
following procedure:
•
check that the diameter of the rotalock valves coincides
with the diameter of the connecting pipe;
INLET
OUTLET
•
weld the rotalock valve to the inlet and outlet pipes of the
condensing unit;
•
using the teflon gaskets screw the rotalock valves to the
inlet and outlet pipes of the refrigeration circuit of the
conditioner.
ATTACCHI ROTALOCK
(1) With fan speed control
(2) External temperature = 35°C
Dry coolers
*
E
U
T
-
*
D
U
T
-
*
W
U
T
-
*
E
D
T
-
*
D
D
T
-
*
W
D
T
L
E
D
O
M
1
1
5
0
1
1
6
0
1
2
7
0
2
2
7
0
1
2
9
0
2
2
9
0
1
2
0
1
/
r
e
b
m
u
N
l
e
d
o
m
d
e
t
s
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g
g
u
S
x
1
0
0
5
1
L
A
R
x
1
0
0
5
1
L
A
R
x
1
0
0
5
1
L
A
R
x
1
0
0
5
1
L
A
R
x
1
0
0
5
1
L
A
R
x
1
0
0
5
1
L
A
R
x
1
0
0
5
1
L
A
R
r
o
o
d
t
u
o
x
a
M
e
r
u
t
a
r
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p
m
e
t
C
°
5
,
1
4
C
°
0
,
0
4
C
°
5
,
0
4
C
°
5
,
0
4
C
°
0
,
0
4
C
°
5
,
2
4
C
°
5
,
1
4
*
E
U
T
-
*
D
U
T
-
*
W
U
T
-
*
E
D
T
-
*
D
D
T
-
*
W
D
T
L
E
D
O
M
2
2
0
1
1
2
1
1
2
2
1
1
1
1
3
1
2
2
3
1
2
2
4
1
2
2
6
1
2
2
8
1
/
r
e
b
m
u
N
l
e
d
o
m
d
e
t
s
e
g
g
u
S
x
1
0
0
5
1
L
A
R
x
1
0
0
5
1
L
A
R
x
1
0
0
5
1
L
A
R
x
1
0
0
3
2
L
A
R
x
1
0
0
3
2
L
A
R
x
1
0
0
3
2
L
A
R
x
1
0
0
6
3
L
A
R
x
1
0
0
6
3
L
A
R
r
o
o
d
t
u
o
x
a
M
e
r
u
t
a
r
e
p
m
e
t
C
°
5
,
1
4
C
°
8
,
1
4
C
°
2
,
2
4
C
°
5
,
3
4
C
°
6
,
4
4
C
°
5
,
3
4
C
°
2
,
4
4
C
°
4
,
3
4
Note:
the units with R410A refrigerant all have welded connections
*
A
U
T
-
*
A
D
T
*
T
U
T
-
*
T
D
T
L
E
D
O
M
2
2
2
2
2
4
2
2
2
2
5
2
2
4
5
2
2
4
8
2
2
4
3
3
2
4
2
2
2
4
5
2
2
4
8
2
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e
b
m
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N
)
2
(
)
1
(
l
e
d
o
m
d
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t
s
e
g
g
u
S
x
1
2
0
0
2
L
A
C
x
1
2
0
0
2
L
A
C
x
1
2
0
0
3
L
A
C
x
1
2
0
0
3
L
A
C
x
1
2
0
0
4
L
A
C
x
1
2
0
0
5
L
A
C
x
1
2
0
0
2
L
A
C
x
1
2
0
0
3
L
A
C
x
1
2
0
0
4
L
A
C
*
E
U
T
-
*
D
U
T
-
*
W
U
T
-
*
E
D
T
-
*
D
D
T
-
*
W
D
T
L
E
D
O
M
2
4
2
2
2
4
5
2
2
4
8
2
2
4
3
3
/
r
e
b
m
u
N
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d
o
m
d
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t
s
e
g
g
u
S
x
1
0
0
3
2
L
A
R
x
1
0
0
6
3
L
A
R
x
1
0
0
6
3
L
A
R
x
1
0
0
6
3
L
A
R
r
o
o
d
t
u
o
x
a
M
e
r
u
t
a
r
e
p
m
e
t
C
°
0
4
C
°
2
4
C
°
1
4
C
°
9
3
