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English
Installation Procedure
Preparing materials and tools
•
You must keep the installation manual until the installation is
finished.
•
Hand over the installation manual to the customer after
finishing the installation.
Installation manual (1) Packing socket (1)
࢜ Certain models are supplied with a packing socket. The socket
type may differ, depending on the model.
Optional accessories
• Following optional accessories are needed for connecting
pipes between the indoor and outdoor units.
Classification Model Name
Specification
MBH kW
Y-Joint
MXJ-YA1509M 51 and below 15.0 and below
MXJ-YA2512M ߧߤߣߥߨ ߣߧߣߦߢߢ
MXJ-YA2812M ߣߥߩߣߧߦ ߦߢߣߦߧߢ
MXJ-YA2815M ߣߧߧߤߦߢ ߦߧߣߩߢߥ
MXJ-YA3419M ߤߦߣߥߥߨ ߩߢߦ߫ߪߦ
MXJ-YA4119M ߥߥߩߦߨߣ ߫ߪߧߣߥߧߤ
MXJ-YA4422M Over 461 Over 135.2
Classification Model Name
Specification
MBH kW
Y-Joint
(Only H/R)
MXJ-YA1500M 76 and below 22.4 and below
MXJ-YA2500M ߩߩߤߦߢ ߤߤߧߩߢߥ
MXJ-YA3100M ߤߦߣߦߨߣ ߩߢߦߣߥߧߤ
MXJ-YA3800M Over 461 Over 135.2
Distribution
header
MXJ-HA2512M
154 and below
(for 4 rooms)
45.0 and below
(for 4 rooms)
MXJ-HA3115M
240 and below
(for 8 rooms)
70.3 and below
(for 8 rooms)
MXJ-HA3819M
ߤߦߣߦߨߣ
(for 8 rooms)
ߩߢߦߣߥߧߤ
(for 8 rooms)
Y-Joint
- Outdoor unit
MXJ-TA3819M 461 and below
135.2 and
below
MXJ-TA4422M Over 461 Over 135.2
Y-Joint
(Only H/R)
- Outdoor unit
MXJ-TA3100M 461 and below
135.2 and
below
MXJ-TA3800M Over 461 Over 135.2
࢜ If you use an indoor unit with no internal EEV(Electric
Expansion Valve), you will need an EEV kit.
࢜ Only use the genuine accessories listed in above table and do
not use imitated accessories.
Outdoor unit installation
WARNING
• Make sure to remove the wooden pallet before installing the
outdoor unit. If you do not remove the wooden pallet, there
is risk of fire during welding the pipes. If the outdoor unit is
installed with wooden pallet on, and it was used for long period
time, wooden palette may break and cause electrical hazard or
high pressure may damage the pipes.
࢜ Fix an outdoor unit firmly on the base ground with anchor
bolts.
࢜ Manufacturer is not responsible for the damage occurred by
not following the installation standards.
1 Make sure that the height of the base ground is 200mm
(8inch) or higher to protect the outdoor unit from rain water or
other external conditions. Also, install a draining pit around the
base ground and connect the drain pipe to the drainage.
2 Considering the vibration and weight of the outdoor unit,
strength of the base ground must be strong to prevent noise
and the top surface of it should be flat.
3 Base ground should be 1.5 times larger than the bottom of the
outdoor unit.
4 Outdoor unit must be fixed firmly so that it can withstand the
wind speed of 30m/s. If you cannot fix the outdoor unit on the
base ground, fix it by side or use extra structure.
5 In heating operation, defrost water may form so you must
really care about the drainage and waterproofing the floor. To
prevent defrost water from stagnating or freezing, construct
a drainage with over 1/50 slope. (Ice may form on the floor in
winter season.)
6 It is necessary to add wire mesh or steel bar during concrete
construction for the base ground to prevent damages or
cracks.
7 When installing multiple outdoor units at the same place,
construct an H beam or an anti-vibration frame on the base
ground to install the outdoor unit.
8 After installing an H beam or an anti-vibration frame, apply
corrosion protection and other necessary coating.
9 When concrete construction for outdoor unit installation is
completed, install an anti-vibration pad (t=20mm/0.78inch or
more) or an anti-vibration frame to prevent vibration of the
outdoor unit from transferring to the base ground.
10 Place the outdoor unit on an H beam or an anti-vibration frame
and fix it with the bolt, nut and washer. (The bearing force has
to be over 3.5kN)
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