Daikin KHRQ23M29H Installationsanleitung Seite 18

5 In case the pinched piping lower part looks like detail A in
the figure below, follow instructions as per procedure steps
7-8.
In case the pinched piping lower part looks like detail B in
the figure below, follow instructions as per procedure steps
6-7-8.
3
2
B
A
4
6 For HP/LP gas and suction gas stop
valves, cut off the lower part of the
smaller pinched piping
appropriate tool (e.g. pipe cutter, a pair of
nippers, ...).
Let the remaining oil drip out in case the
recovery was not complete:
Wait until all oil is dripped out.
7 Cut the pinched piping off with a pipe cutter just above the
brazing point or marking if there is no brazing point.
CAUTION
Never remove the pinched piping by brazing.
8 Wait until all oil is dripped out before continuing with the
connection of the field piping in case the recovery was not
complete.
5. Connecting refrigerant piping to the outdoor unit.
INFORMATION
All local interunit piping are field supplied except the
accessory pipes.
NOTICE
Precautions when connecting field piping.
Add brazing material as shown in the figure.
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.
Installation manual
15
1 Pinched piping
2 Stop valve
3 Service port
4 Point of melting the
brazing metal; cut pipe off
just above this brazing or
marking point
1
with an
Connection from the stop valves to the field piping using accessory
pipes should be as below:
A
3
2
1
4
4
9
8
4
5
6
7
A Front connection
B Bottom connection
1 Liquid pipe stop valve
2 Suction gas pipe stop valve
3 HP/LP gas pipe stop valve
4 Brazing
5 Liquid accessory pipe (1)
6 Suction gas accessory pipe (1)
7 HP/LP gas accessory pipe (1)
8 Accessory joint (angle 90°) (1)
9 Accessory joint (angle 90°) (2)
10 Liquid accessory pipe (2)
11 Suction gas accessory pipe (2)
12 HP/LP gas accessory pipe (2)
13 Accessory joint
NOTICE
Make sure that the onsite piping does not come in contact
with other piping, the bottom frame or side panels of the
unit.
The connections to the branch kits as shown above, are the
responsibility of the installer (field piping).
B
3
2
1
4
10 12
11
REYAQ10~16P7Y1B
VRVIII system outdoor unit
4PW62582-1A – 08.2011