Vatech Green X18 - Page 152

Appendix
A-8 Green X / X18 (Model: PHT-75CHS) Installation Manual
Determining the Height
Determine the screw height using the following formula:
H
screw height
=100 mm – d

100
mm: the minimum desired distance between the ceiling and the top of the
equipment when the column is fully extended.
 d = Hceiling - HMax = Hceiling - 2336 mm (Example height: The height of the
equipment without Base)
Ex) If Hceiling is 2200 mm, the Hscrew height value is calculated as follows:
d = Hceiling - HMax = 2200 mm - 2336 mm = -136 mm
Hscrew height = 100 mm - d = 100 mm + 136 mm = 236 mm
(If d is more than 100 mm, the column height limit is not necessary.)
Hscrew height =100 mm – d
H
ceiling
= 2,200
H
Max = 2,320.6
H
screw height
= 236