To Connect The Refrigerant Piping To The Outdoor Unit - Daikin Altherma ERLQ011-014-016CA Installer's Reference Manual

7.5.8 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).
▪ Make sure the piping and piping insulation do NOT touch the
compressor (c), the compressor terminal cover (d), and the
compressor bolts (e). If the liquid pipe insulation might touch
the compressor terminal cover, adjust the height of the
insulation (f=no insulation around the compressor terminal
cover (d)).
▪ Seal the insulation ends (sealant etc.) (g).
ERHQ+ERLQ011~016 + EHBH/X11+16CB
Daikin Altherma – Low temperature split
4P384974-1 – 2015.01
c
d
e
6 If the outdoor unit is installed above the indoor unit, cover the
stop valves (h, 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.
7 Installation
h
h
g
f
g
b
a
c
Installer reference guide
35