19
HED-HCAT SE FREE COOLING
ENGLISH
SIZING OF REFRIGERANT PIPES
A
I
SIZING CONNECTION PIPING IN RELATION TO EQUIVALENT DISTANCE
EQUIVALENT CORRESPONDING LENGTH, 90˚ CURVE AND COMPLETE SIPHON
90° curve
m eq.
0,40
0,42
0,48
0,50
0,60
0,80
1
,00
1
,20
Siphon
m eq.
1
,60
1
,68
1
,92
2,00
2,40
3,20
4,00
4,80
Pipe diameter
Øi / Øe
8/
1
0
1
0/
1
2
1
4/
1
6
1
6/
1
8
20/22
26/28
33/35
39/42
N.B.: Attenzione l’aggiunta di gas comporta un’aggiunta di olio lubrificante nella misura del
1
0% del peso del gas refrigerante.
Bocchettone
Tronchetto flangiato
Linea gas
Linea liquido
Bocchettone
Tronchetto flangiato
INTAKE PIPING
Flared couplings are used for all models. To connect,
proceed as follows:
1. Prepare the end of the pipe, creating the correctly
shaped flare.
2. Connect the prepared pipe to the intake pipe shut-off
valve using two spanners as shown in the figure below.
LIQUID PIPING
Flared couplings are used for all models. To connect,
proceed as follows:
1. Prepare the end of the pipe, creating the correctly
shaped flare.
2. Connect the prepared pipe to the liquid pipe shut-off
valve using two spanners as shown in the figure below.
Note: The use of a flare connected directly to the piping
limits impurities inside the pipe. All pipes must be perfectly
clean (clean piping with nitrogen or dry air before connec-
ting to the two units) and free from moisture to allow effi-
cient venting.
Model 0011 0021 0031 0041-0051 0061
Type of pipe0-10 m eq.
Intake/discharge
Ø mm
16
16
18
Liquid
Ø mm
10
10
12
Type of pipe
10-20 m eq.
Intake/discharge
Ø mm
16
18
22
Liquid
Ø mm
10
10
12
Type of pipe
20-30 m eq.
Intake/discharge
Ø mm
18
18
28
Liquid
Ø mm
10
10
16
Pipe diameter
10
12
16
22
28
Size of pipe
Intake
gr./m
-
2,6
4,3
8,9
15,2
Discharge
gr./m
-
20
34
73
120
Liquid
gr./m
66
100
178
364
-
Union
Flanged Stud
Gas pipe
Union
Flanged Stud
Gas pipe
