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Base construction and installation of the DVM Hydro unit / Hydro unit HT
• If this product is installed in residential area, apply vibration isolation to prevent the vibration from transferring
to the building .
WARNING
f Manufacturer is not responsible for the damage occurred by not following the installation standards .
1 . Considering the vibration and weight of the DVM Hydro unit / Hydro unit HT, strength of the base ground must be strong
enough to prevent noise and the top part of the base ground has to be flat .
2 . Base ground should be 1 . 5 times larger than the bottom of the Hydro unit .
3 . It is necessary to add wire mesh or steel bar during concrete construction for the base ground to prevent damages or
cracks .
4 . Place the DVM Hydro unit / Hydro unit HT on the base construction and completely fix it with the bolt, nut and washer .
[The bearing force has to be over 3 . 5 kN (786 . 8 lbf)]
5 . Fix the DVM Hydro unit / Hydro unit HT firmly with 4 foundation bolts .
6 . When concrete construction for DVM Hydro unit / Hydro unit HT installation is completed, install an anti-vibration
pad(t=20 mm or more) or an anti-vibration frame(vibration transmissibility=5 % and below) to prevent vibration of the
outdoor unit from transferring to the base ground .
7 . When constructing base ground, DVM Hydro unit / Hydro unit HT must be supported within the range of following
dimensions .
Base ground construction
Drain hole
200 mm (7 . 9 inch) or more
DVM Hydro unit installation
340 (13 . 4 )
518 (20 . 4 )
10
Unit: mm (inch)
DVM Hydro unit
Anchor bolt
20 mm
(0 . 8 inch)
Nut, Spring washer
A
Anti-vibration pad
H beam or anti-vibration frame
A+10 ~ 20 mm (0 . 4 ~ 0 . 8 inch) or more
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