Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 889

(c) Securing outdoor unit (in the case of exposure to severe weather conditions)
Fix the unit in the following way.
● Use overturning prevention brackets.
● Rig with wires.
(4) Installation
Fix the unit in a proper way according to the condition of a place where it is installed by referring to the following.
(a) Fix the unit to the foundation with anchor bolts.
FDC140 type
Position of
anchor bolt
(M10 ~ 4 places)
[Service panel side]
(Use rigging wires that are resistant to corrosion and sufficient in strengh.
For example SUS304-W1, wire thickness 2.9 mm)
FDC224, 280 type
unit : mm
Position of
anchor bolt
(M10
Fix the unit using achor bolts
unit : mm
4 places)
[Service panel side]
FDC-HKX
Ring with wires
887