Daikin altherma EMRQ8AAY1 Installation Manual page 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.
2
4
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
6 For discharge and suction gas stop valves, cut off the lower part
of the smaller pinched piping with an 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.
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.
3. Connecting refrigerant piping to the outdoor unit.
NOTE All local interunit piping are field supplied except
the accessory pipes.
Precautions when connecting field piping.
Add brazing material as shown in the figure.
Installation manual
15
3
B
A
1
■
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.
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
C
3
2
1
4
13
4
11
A Front connection
B Bottom connection
C EMRQ8
1 Liquid pipe stop valve
2 Suction gas pipe stop valve
3 Discharge gas pipe stop valve
4 Brazing
5 Liquid accessory pipe (1)
6 Suction gas accessory pipe (1)
7 Discharge 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 Discharge gas accessory pipe (2)
13 Accessory joint
NOTE 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 above to the branch kits, are the responsibility of the
installer (field piping).
B
3
2
1
4
10 12
11
EMRQ8~16AAY1
Daikin Altherma outdoor unit
4PW61262-1B – 2013.11