17
PIPING INSTALLATION
Piping Connections to Outdoor Unit
1. Remove service valve cover (if provided) to
access the service valves and refrigerant ports.
2. Carefully bend and adjust length of refrigerant
pipes to meet outdoor unit service valves
connections with proper tools to avoid kinks.
NOTE:
Use proper techniques to cut and re-flare
refrigerant pipes, if required. An R410A Flaring Tool
is required for re-flaring refrigerant pipes.
3. Apply a small amount of refrigerant oil to the flare connection on the refrigerant pipe.
4. Properly align piping and tighten flare nut using a standard wrench and a torque
wrench as shown in the indoor piping section.
5. Carefully tighten flare nuts to correct torque level referring to the Torque Table above.
4. Properly align piping and tighten flare nut using a standard wrench and a torque wrench
as shown in figure below. Carefully tighten flare nuts to correct torque level referring
to the Torque Table above.
NOTE:
Over tightening may damage flare connections and cause leaks.
5. Individually insulate each refrigerant line to
prevent sweating.
Insulate pipes
Pipe Diameter
Nut Size
Tightening Torque
inch (mm)
inch (mm)
ft-lbs
N-m
1/4 (6)
1/4 (17)
10 to 13
14 to 18
3/8 (9.5)
3/8 (22)
25 to 30
34 to 42
1/2 (12.7)
1/2 (25)
36 to 45
49 to 61
5/8 (16)
5/8 (29)
50 to 60
68 to 82
Torque Table
Indoor Unit Piping
Taper Nut
Wrench
Torque Wrench
Piping
Service
Valve Cover
Содержание Livo+ LIVS09HP115V1B
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