Johnson Controls YEWS Series, Installation, Operation And Maintanance Instructions

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YEWS-E Water Cooling Screw Chiller/Heat Pump
SYSTEM OPERATING WEIGHT
Kg
UP TO 7423
Lbs.
UP TO 16365
PART NUMBER
028W14462-000
Checking the Isolator Pads Deflection
All isolator pads should be checked for the proper deflection
while checking the level of the unit. Each pad should be
deflected approximately 4 mm (0.15"). If an isolator pad is
under deflected, shim should be placed between the unit
tube sheet and the top of the pad to equally deflect all pads.
Installing Option Spring Isolators
In order to mount spring isolators, first remove the nuts and
screws on the spring isolator supports. Before the unit is
positioned, the isolator supports should be bolted to the unit
support. Position the 4 spring isolators, screw out the
adjusting screws on each isolator until they reach out to
match the isolator support holes. Then lower down the unit
on the adjusting screws. See the following Fig.
The leveling bolts should now be rotated one (1) turn at a
time, in sequence, until the unit end sheets are clear of the
floor or foundation by 22 mm (7/8") and the unit is level.
Check that the unit is level, both longitudinally and
transversely. If the leveling bolts are not long enough to level
unit due to an uneven or sloping floor or foundation, steel
shims (ground, if necessary) must be added beneath the
isolator assemblies as necessary.
After the unit is leveled, wedge and shim under each corner
to solidly support the unit in this position while piping
connections are being made, pipe hangers adjusted and
connections checked for alignment. Then the unit is filled
with water and checked for leaks. The leveling bolts should
now be finally adjusted until the wedges and shims can be
removed the unit should now be in correct level position,
clear of the floor or foundation and without any effect from
the weight of the piping.
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