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Installation Procedure (continued)
Refrigerant charge to be added per extra
metre of piping length when more than 7.5
meters.
Unit size
12
18
g/m
15
40
Refrigerant Piping Connections (FLARE Connections)
To avoid alteration of unit capacities, check that piping lengths and changes in elevation are kept to a strict minimum.
Before connectiong the refrigerant lines, follow the procedures below (if pre-charged connection lines are not supplied):
- Select copper pipe diameters according to the size of unit to be installed.
- Install the refrigeration lines, checking that no foreign bodies get inside the piping.
- Install the flare connectors and flare the ends of the pipes.
Low Pressure
High Pressure
Pressure Tap
This unit is shipped complete with a charge of R22 refrigerant that will be sufficient for an interconnecting piping length of 5
meters.
14
FLOOR/CEILING
PCC/POC
24
36
48
40
40
40
Manifold
Gas Valve
Liquid Valve
60
40
H
Outdoor Unit
L
D
L
Indoor Unit
Gas Line
Liquid Line
R22
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