To Connect The Refrigerant Piping To The Outdoor Unit - Daikin RXYSA4A7V1B Installer And User Manual

18.2.7 To connect the refrigerant piping to the outdoor unit

RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1A – 2020.07
3 Recover gas and oil from the spun piping by using a recovery unit.
CAUTION
Do not vent gases into the atmosphere.
4 When all gas and oil is recovered from the spun piping, disconnect the charge
hose and close the service ports.
5 Cut off the lower part of the gas and liquid stop valve pipes along the black
line. Use an appropriate tool (e.g. a pipe cutter).
WARNING
Never remove the spun piping by brazing.
Any gas or oil remaining inside the stop valve may blow off the spun piping.
6 Wait until all oil has dripped out before continuing with the connection of the
field piping in case the recovery was not complete.
▪ Piping length. Keep field piping as short as possible.
▪ Piping protection. Protect the field piping against physical damage.
NOTICE
▪
Be sure to use the supplied accessory pipes when carrying out piping work in the
field.
▪
Be sure that the field installed piping does not touch other pipes, the bottom
panel or side panel. Especially for the bottom and side connection, be sure to
protect the piping with suitable insulation, to prevent it from coming into contact
with the casing.
1 Do the following:
▪ Remove the service cover (a) with screw (b).
▪ Remove the piping intake plate (c) with screws (d).
18 Piping installation
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Installer and user reference guide
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