JOHNSON CONTROLS
34
FORM 150.66-NM3
ISSUE DATE: 09/25/2020
SECTION 4 - INSTALLATION
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
for operating weight
.
If the unit is
elevated beyond the normal reach of service personnel,
a suitable catwalk must be capable of supporting ser-
vice personnel, their equipment, and the compressors.
Ground Level Locations
It is important that the units be installed on a sub-
stantial base that will not settle. A one piece concrete
slab with footers extended below the frost line is
highly recommended. 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
Dimensions - YCAL0041 (English)
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 access
panels will prevent casual tampering. However, further
safety precautions such as a fenced-in enclosure or
locking devices on the panels may be advisable.
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 ensure that the chiller is not
located next to occupied spaces or noise sensitive areas
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. Sound blankets for the compressors and
low sound fans are available.
SPRING ISOLATORS (OPTIONAL)
When ordered, four isolators will be furnished.
Identify the isolator, locate at the proper mounting
point, and adjust per instructions.
COMPRESSOR MOUNTING
The compressors are mounted on four rubber isolators.
The mounting bolts should not be loosened or adjusted
at installation of the chiller.
REMOTE COOLER OPTION
For units using remote cooler option, refer to instruc-
tions included with miscellaneous cooler parts kit.
The unit and remote cooler are shipped with a 6 lb.
(2.7 kg) nitrogen holding charge. The nitrogen charge
must be removed, and system evacuated, and the re-
frigerant charge must be weighed-in according to the
operating charge listed under
. Additional charge must also be added for the
refrigerant lines.
CHILLED LIQUID PIPING
General –
When the unit(s) has been located in its fi
-
nal position, the unit water piping may be connected.
Normal installation precautions should be observed in
order to receive maximum operating efficiencies. Pip
-
ing should be kept free of all foreign matter. All chilled
water evaporator piping must comply in all respects
with local plumbing codes and ordinances.
Since elbows, tees and valves decrease pump capacity,
all piping should be kept as straight and as simple as
possible.
All piping must be supported independent
of the chiller.
Consideration should be given to com
-
pressor access when laying out water
piping. Routing the water piping too
close to the unit could make compres
-
sor servicing/replacement difficult.
Hand stop valves should be installed in all lines to fa-
cilitate servicing.
Piping to the inlet and outlet connections of the chiller
should include high-pressure rubber hose or piping
loops to ensure against transmission of water pump vi-
bration. The necessary components must be obtained
in the field.
Содержание YCAL Series
Страница 4: ...JOHNSON CONTROLS 4 FORM 150 66 NM3 ISSUE DATE 09 25 2020 THIS PAGE INTENTIONALLY LEFT BLANK...
Страница 16: ...JOHNSON CONTROLS 16 FORM 150 66 NM3 ISSUE DATE 09 25 2020 THIS PAGE INTENTIONALLY LEFT BLANK...
Страница 130: ...JOHNSON CONTROLS 130 FORM 150 66 NM3 ISSUE DATE 09 25 2020 THIS PAGE INTENTIONALLY LEFT BLANK...
Страница 144: ...JOHNSON CONTROLS 144 FORM 150 66 NM3 ISSUE DATE 09 25 2020 THIS PAGE INTENTIONALLY LEFT BLANK...
Страница 173: ...FORM 150 66 NM3 ISSUE DATE 09 25 2020 173 JOHNSON CONTROLS 10 NOTES...