18
EN
Cod. 3541T090 - Rev. 00 - 06/2019
INSTALLATION
6.5 Limits to the length and heigth 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.
MOD. 4-6 8
Connections LIQUID line " 3/8
Connections GAS line " 5/8
Length with standard charge m 10
Cooling line maximum length m 20 30
Maximum diff.in height Outdoor unit low (H1) m 8 15
Maximum diff.in height Outdoor unit high (H2) m 10 20
Refrigerant charge Type R410A
Quantity of additional refrigerant per meter g/m 54
Contact our technical department for the required modifications if the units must operate beyond the specifications given above.
6.6 Refrigerant connections indoor unit
Comply with the following indications when connecting the cooling pipes:
• Match the ends of the previously flared pipe with those of the connections on the indoor units (see part. L e G “fig. 6 - dimensional data and connections” on page
11).
• Tighten the union by hand and then torque it with the aid of an adequate wrench.
6.7 Refrigerant connections outdoor unit
• Match the ends of the pipe previously flared with those of the taps on the outdoor unit.
• Screw the fitting by hand and then tighten it with a suitable wrench.
LIQUID
CONNECTION
GAS
CONNECTION
fig. 22 -
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