JOHNSON CONTROLS
17
SECTION 2 - INSTALLATION
FORM 160.78-N1
ISSUE DATE: 5/30/2012
2
Install Optional Spring Isolators
Bolt Isolators To The Unit
If ordered, spring type isolator assemblies are fur-
nished with the unit. The four assemblies are identical
and can be placed at any of the four corners of the unit.
While the unit is still suspended by the rigging, the iso-
lators should be bolted to the unit by inserting the cap
screw(s) through the hole(s) in the mounting bracket
into the tapped hole in the top of the isolator leveling
bolt(s). Then the unit can be lowered onto the floor.
Level The Unit
The longitudinal alignment of the unit should be
checked by placing a level on the top center of the
evaporator shell under the compressor/motor assem-
bly. Transverse alignment should be checked by plac-
ing a level on top of the shell end sheets.
Rotate the leveling bolts one turn at a time, in sequence,
until the unit end sheets are clear of the floor by the di-
mension shown in
Figures 5 and 6
and the unit is level.
If the leveling bolts are not long enough to level unit
due to an uneven or sloping floor or foundation, steel
shims (grouted, if necessary) must be added beneath
the isolator assemblies as necessary.
FIGURE 5 -
SPRING ISOLATORS
UNIT WEIGHT
Up To 35,009 Lbs (15,880 Kgs)
LD126544
