YORK INTERNATIONAL
38
FOUNDATION
The unit should be mounted on a flat and level founda-
tion, floor, or rooftop capable of supporting the entire
operating weight of the equipment. See PHYSICAL
DATA for operating weight. If the unit is elevated be-
yond the normal reach of service personnel, a suitable
catwalk must be capable of supporting service person-
nel, their equipment, and the compressors.
GROUND LEVEL LOCATIONS
It is important that the units be installed on a substan-
tial base that will not settle. A one piece concrete slab
with footers extended below the frost line is highly rec-
ommended. Additionally, the slab should not be tied to
the main building foundations as noise and vibration
may be transmitted.
Mounting holes are provided in the steel channel for
bolting the unit to its foundation. (See DIMENSIONS.)
For ground level installations, precautions should be
taken to protect the unit from tampering by or injury to
unauthorized persons. Screws and/or latches on ac-
cess panels will prevent casual tampering. However,
further safety precautions such as a fenced-in enclo-
sure or locking devices on the panels may be advis-
able. A tamper proof kit is available as an option. Check
with local authorities for safety regulations.
ROOFTOP LOCATIONS
Choose a spot with adequate structural strength to
safely support the entire weight of the unit and service
personnel. Care must be taken not to damage the roof.
Consult the building contractor or architect if the roof is
bonded. Roof installations should have wooden beams
(treated to reduce deterioration), cork, rubber, or vibra-
tion isolators under the base to minimize vibration.
NOISE SENSITIVE LOCATIONS
Efforts should be made to assure that the chiller is not
located next to occupied spaces or noise sensitive ar-
eas where chiller noise level would be a problem. Chiller
noise is a result of compressor and fan operation. Con-
siderations should be made utilizing noise levels pub-
lished in the YORK Engineering Guide for the specific
chiller model. If questions arise, contact YORK PROD-
UCT MARKETING.
SHIPPING BRACES
A single painted shipping bracket on the opposite end
of the control panel runs diagonally along the end of
the unit. This may be removed once the unit is mounted
on its foundation, however, it may remain in place.
SPRING ISOLATORS (OPTIONAL)
When ordered, eight (8) spring isolators will be fur-
nished.
1. Identify the isolator and locate at the proper mount-
ing point see pages 40 - 41.
2. Block up the equipment so as to install spring mounts
with the pin on top of the housing into the chiller
mounting holes.
3. The Mounting Adjustment Nut is inside the isolator
mount located just below the top plate of the mount.
Turn the nut 2 turns clockwise (down) to load the
spring mount at each location.
4. Take additional turns on the Adjustment Nut of each
location.
5. Repeat Step No. 3 as many times as necessary to
bring the height of the isolator to the proper height.
6. Take additional turns on the mounts at the low side
or corner to level the equipment.
COMPRESSOR MOUNTING
The compressors are mounted on four (4) vibration iso-
lators. (See Fig. 20) The mounting bolts should NEVER
be loosened or adjusted at installation of the chiller.
CHILLED LIQUID PIPING
General
When the unit has been located in its final
position, the unit liquid piping may be connected. Nor-
mal installation precautions should be observed in or-
der to receive maximum operating efficiencies. Piping
should be kept free of all foreign matter. All liquid evapo-
rator piping must comply in all respects with local plumb-
ing codes and ordinances.
Since elbows, tees and valves decrease pump capac-
ity, all piping should be kept as straight and as simple
as possible.
Hand stop valves should be installed in all lines to fa-
cilitate servicing.
FIG. 20 – COMPRESSOR VIBRATION ISOLATOR
27974A
COMPRESSOR
VIBRATION ISOLATOR
