To Connect The Refrigerant Piping To The Outdoor Unit - Daikin AZQS100B8V1B Installer's Reference Manual

To handle the service cap
Take the following guidelines into account:
▪ Always use a charge hose equipped with a valve depressor pin,
since the service port is a Schrader type valve.
▪ After handling the service port, tighten the service port cap
securely. For the tightening torque, refer to the table in chapter
"To handle the stem cap" on page 12.
▪ Check for refrigerant leaks after tightening the service port cap.
6.4.8 To connect the refrigerant piping to the
outdoor unit
1 Do the following:
▪ Remove the service cover (a) with screw (b).
▪ Remove the piping intake plate (c) with screw (d).
a
b
c
d
2 Choose a piping route (a, b, c or d).
d
a c
b
3 If you have chosen the downwards piping route:
▪ Drill (a, 4×) and remove the knockout hole (b).
▪ Cut out the slits (c) with a metal saw.
a b
4× Ø6 mm
c c
4 Do the following:
▪ Connect the liquid pipe (a) to the liquid stop valve.
▪ Connect the gas pipe (b) to the gas stop valve.
b
a
5 Do the following:
▪ Insulate the liquid piping (a) and the gas piping (b).
▪ Wind heat insulation around the curves, and then cover it
with vinyl tape (c).
▪ Make sure the field piping does not touch any compressor
components (d).
▪ Seal the insulation ends (sealant etc.) (e).
AZQS100~140B8V1B + AZQS100~140B7Y1B
Split system air conditioners
4P385529­1 – 2014.08
f
d
6 If the outdoor unit is installed above the indoor unit, cover the
stop valves (f, see above) with sealing material to prevent
condensed water on the stop valves from moving to the indoor
unit.
NOTICE
Any exposed piping might cause condensation.
7 Reattach the service cover and the piping intake plate.
8 Seal all gaps (example: a) to prevent snow and small animals
from entering the system.
a
WARNING
Provide adequate measures to prevent that the unit can be
used as a shelter by small animals. Small animals that
make contact with electrical parts can cause malfunctions,
smoke or fire.
NOTICE
Precautions when making knockout holes:
▪ Avoid damaging the casing.
▪ After making the knockout holes, we recommend you
remove the burrs and paint the edges and areas
around the edges using repair paint to prevent rusting.
▪ When passing electrical wiring through the knockout
holes, wrap the wiring with protective tape to prevent
damage.
a b
a Knockout hole
b Burr
c Sealant etc.
NOTICE
Make sure to open the stop valves after installing the
refrigerant piping and performing vacuum drying. Running
the system with the stop valves closed may break the
compressor.
6 Installation
e
a
b
c
c
Installer reference guide
13