Installation Diagrams; Refrigerant Pipes - Ferroli GOLD 3.2 Series Use And Maintenance Manual

INSTALLATION DIAGRAMS

The indoor unit may be installed on top of the outdoor one and vice versa .
Outdoor unit positioned at the bottom and indoor unit at the top (fig . 1) .
In this case a trap (6) must be made on the intake piping (3) to halt the
downflow of refrigerant and to avoid liquid returning to the compressor . The
relative connection pipes
must be insulated .
Key:
1 . Outdoor unit
2 . Indoor unit
3 . Piping on gas side (larger diameter)
4 . Piping on liquid side
5 . Condensation drain pipe
6 . Trap
Outdoor unit positioned at the top and indoor unit at the bottom (fig . 2) .
In this case, traps (6) must be installed on the suction piping (3), every three
meters of difference in level . These traps will allow the oil to return to the
compressor . The relative connection pipes must be insulated .
Key:
1 . Outdoor unit
2 . Indoor unit
3 . Piping on gas side (larger diameter)
4 . Piping on liquid side
5 . Condensation drain pipe
6 . Trap
Note: The maximum difference in level between the indoor unit and outdoor
unit must not exceed the values given in the "LIMITS TO THE LENGTH AND
HEIGHT DIFFERENCE OF REFRIGERANT PIPES" section .
LIMITS TO THE LENGTH AND HEIGHT DIFFERENCE OF REFRIGERANT PIPES
The length of the refrigerant pipes between the indoor and outdoor units must be as short as possible and is in any
case limited by compliance with the maximum height difference values between the units .
Diminution of the difference in height between the units (H1,H2) and of the pipe lengths (L) will limit the load losses,
consequently increasing the overall efficiency of the machine .
Comply with the limits given in the following tables .
FEATURES
Connections LIQUID line
Connections GAS line
Length with standard charge
Cooling line maximum length
Outdoor unit low (H1)
Maximum diff .in
height
Outdoor unit high (H2)
Refrigerant charge
Quantity of additional refrigerant per meter
Contact our technical department for the required modifications if the units must operate beyond the specifications given above .
INSTALLATION
MODEL
"
"
m
m
m
m
Type
g/m
9 12
1/4 1/4
3/8 3/8
5 5
20 20
10 10
10 10
R32
20 20
Fig . 1
Fig . 2
18 22
1/4 1/4
1/2 5/8
5 5
25 25
10 10
10 10
20 50
9