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SECTION 4 – INSTALLATION
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. This will help to prevent the possibility of vandalism,
accidental damage, or possible harm caused by unauthorized
removal of protective guards or opening panels to expose
rotating or electrically live components.
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.
The unit can be mounted on a concrete slab, similar to ground
floor locations, or on steel channels of suitable strength. The
channels should be spaced with the same centers as the unit
side and front base rails. This will allow vibration isolators to
be fitted if required.
Consult the building contractor or architect if the roof is bonded.
Roof installations should have wooden beams (treated to reduce
deterioration), cork, rubber, or vibration isolators under the base
to minimize vibration. Isolators are recommended for rooftop
locations.
Noise Sensitive Locations
Efforts should be made to assure that the unit is not located next
to occupied spaces or noise sensitive areas where unit noise
level would be a problem. Unit noise is a result of compressor
and fan operation. Considerations should be made utilizing
noise levels published in the YORK Engineering Guide for the
specific unit model. Sound blankets for the compressors and
enclosure panels are available as options.
Cold Climate Locations
If the unit is operating in low ambient temperature, be sure to
follow the instructions listed below.
1.A baffle plate installed on the airside of the unit is
recommended to prevent exposure to snow in winter.
2.In heavy snowfall areas, make sure the coil and fan will not
32
Cooke Industries - Phone: +64 9 579 2185
be affected by the snow. Construct a lateral canopy if necessary.
3.Deice before operating if the fan blades fail to rotate after
long time standby in snow.
4.Flexible hoses must be installed to ensure effective
condensation water drainage while operating.
Corrosion Locations
The unit is designed to withstand most of the climate
conditions. If the unit is installed near the sea where high levels
of salt may shorten the life of the unit, make sure it is not
exposed to sea winds directly.
For any units being installed at the seashore, or where salt spray
may hit the units, or where acid rain is prevalent, please contact
Johnson Controls.
ISOLATORS (OPTIONAL)
An optional set of vibration isolators can be supplied loose with
each unit. When ordered, four (4) isolators will be furnished
if the unit is installed without pump kit. Two (2) additional
isolators will be required if pump kit is picked.
Identify the isolator, locate at the proper mounting point, and
adjust per instructions.
COMPRESSOR MOUNTING
The compressors are mounted on four (4) rubber or steel
isolators. The mounting bolts should not be loosened or
adjusted at installation of the unit.
CHILLED LIQUID PIPING
General – When the unit(s) has been located in its final
position, the unit water piping may be connected. Normal
installation precautions should be observed in order to receive
maximum operating efficiencies. Piping 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 unit.
Email: sales@cookeindustries.co.nz
FORM NO.:6U6K-B01E-NB-EN
JOHNSON CONTROLS
Web: www.cookeindustries.co.nz
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