Foundation Provision - Hitachi FSG1 Series Technical Catalogue

UNITS INSTALLATION
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12.8.5 FOUNDATION PROVISION

n Concrete Foundations
– The height of the foundation should be 100~300mm
higher than the ground level.
– Install a drainage around foundation for smooth drain.
– When installing the outdoor unit, fix the unit by anchor
bolts.
– Secure the outdoor unit with the anchor bolts.
– When installing the unit on a roof or a veranda, drain
water sometimes turns to ice on a cold morning.
Therefore, avoid draining in an area that people often use
because it is slippery.
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NOTE:
Design the foundation as show above and confirm that
the foundation carries all of the feet of the unit.
Foundations
90
Min.100
Vibration-Proof
Position of Anchor Bolts
RAS 24/30 - FSG1
RAS 30 FXG1
614
90
Ø 30mm Anchor Bolt
Refrigerant
Pipe
Mortar Hole
(Ø 100mm x Depth 150mm)
Min.100
Rubber
Drainage
8-38 x 16
(Hole for Anchor Bolt)
Correct Foundation
RAS-5FSG
RAS-8FSG
RAS-10FSG
RAS-8FXG
RAS-10FXG
RAS-16FSG
RAS-20FSG
RAS-20FXG1
RAS-24FSG1
Drainage (Width 100mm
RAS-30FSG1
x Depth 150mm)
RAS-30FXG1
RAS 16/20 - FSG
RAS 20 FXG1
6-38 x16
(Hole for Anchor Bolt)
MODEL A
760
760
760
760
RAS 5/8/10 - FSG
RAS 8/10 - FXG
4-38 x16
(Hole for Anchor Bolt)
Incorrect Foundation
B
368
688
824
869