Indoor Unit Installation - mundoclima MVD DC2 Manual De Instalación Y Usuario

Original concrete slab structure
Use embedded bolts, and pull bolts.
Steel framework
Directly set and use an angled steel rod
for support.
Suspension bolt
Newly set concrete slab structure
Set using embedded appliances, and
embedded type of bolts.
Knife-type
insertion piece
Figure 3.4
Caution
‡ $OO EROWV VKRXOG EH PDGH IURP KLJK TXDOLW\ FDUERQ VWHHO ZLWK JDOYDQL]HG
surface or other rust prevention treatment) or stainless steel.
‡ +RZ WKH FHLOLQJ VKRXOG EH KDQGOHG ZLOO GLIIHU ZLWK WKH W\SH RI EXLOGLQJ
For specific measures, please consult the building and renovation
engineers.
‡ +RZ WKH OLIWLQJ EROW VKRXOG EH VHFXUHG GHSHQGV RQ WKH VSHFLILF VLWXDWLRQ
and it must be secure and reliable.

3.2. Indoor Unit Installation

3.2.1 Installation sequence for existing ceiling:
Must maintain the ceiling at a level position.
Figure 3.2
Suspension bolt
Angled rod for support
Figure 3.3
Sliding-type
insertion piece
Reinforced bar
Embedded bolt
(hanging and embedded
bolt for piping)
1. Drill 640 mm x 640 mm square holes into the ceiling based on the layout of
the installation board (accessory 2). See Figure 3.5. See Figure 2.1 for
maintenance access.
The centre of the ceiling opening should match the centre of the body of the
indoor unit.
Determine the length and outlets of the connecting pipes, water discharge
piping and the electrical wiring.
In order to keep the ceiling level and prevent vibrations, reinforce the
strength of the ceiling when necessary.
Ceiling
Air conditioner
body
2. Install the hooks in four corners based on the layout for the hooks outlined
in the installation board (accessory 2).
Determine the location on the ceiling of the room or building roof for
PRXQWLQJ DQG GULOO IRXU  PP ;  PP KROHV 7KHQ HPEHG DQG VHW
up the expansion hook anchors (purchased accessory 2) in these holes.
See Figure 3.2.
During the installation of the hooks (purchased accessory 5), make sure
that the concave portion of the hanger corresponds to that of the expansion
hook anchors. Determine the appropriate hook length for installation based
on the ceiling's height. Remove any excess.
Use M10 or W3/8/ bolts for the screws of the mounting hooks.
Take approximately 1/2 of the screw length for the installed hooks as the
excess length.
3. Use the hex nuts on the four mounting hooks to adjust and make sure that
the unit body is level.
If the water discharge pipe is slanted, it may cause the water level switch to
malfunction, and water may leak.
Adjust the position of the unit body, and make sure that the gap with the
ceiling is evenly spaced on all four sides of the ceiling, and the base of the
unit body is 10-12 mm into the base of the ceiling.
Once the position of the unit body is adjusted, use the nuts on the mounting
hooks to secure the unit.
Air conditioner
frame
3.2.2 Installation sequence for new ceiling:
1. Refer to Step 2 of the "Installation sequence for existing ceiling". Pre-bury the
hooks in the new ceiling, and make sure that they are strong enough to bear
the weight of the indoor unit, and that the unit will not become loose when
the concrete shrinks.
2. Once you have lifted and mounted the unit, use M5x20 screws (included
with the installation board) to secure the installation board (accessory 2) on
the unit body. Make sure you verify the size and positions of the opening in
the ceiling and maintenance access before you do so. See Figure 3.8.
Before you mount the unit onto the ceiling, make sure the ceiling is level.
The rest of the procedures are the same as Step 2 of the "Installation
sequence for existing ceiling".
3. Refer to Step 3 of the "Installation sequence for existing ceiling".
4. Remove the installation board (accessory 2).
25
Piping
Water discharge pipe
Position the hole at the centre
of the ceiling opening
Figure 3.5
Top
Figure 3.6
Air conditioner body
10 ~ 12 mm
Ceiling
Figure 3.7