York Millennium YCAS 310, Installation Operation & Maintenance

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FORM 201.10-NM3
29
YORK INTERNATIONAL
INSTALLATION
WARNING
To protect warranty, this equipment must be
installed and serviced by an authorized YORK
service mechanic or a qualified service person
experienced in chiller installation. Installation must
comply with all applicable codes, particularly in
regard to electrical wiring and other safety elements
such as relief valves, HP cut-out settings, design
working pressures, and ventilation requirements
consistent with the amount and type of refrigerant
charge.
Lethal voltages exist within the control panel. Before
servicing, open and tag all disconnect switches.
INSTALLATION CHECK LIST
The following items, 1 thru 5, must be checked before
placing the units in operation.
1. Inspect the unit for shipping damage.
2. Rig unit per Fig. 6A or 6B. Remove unpainted ship-
ping braces.
3. Open the unit only to install water piping system. Do
not remove protective covers from water connec-
tions until piping is ready for attachment. Check water
piping to insure cleanliness.
4. Pipe unit using good piping practice (see ASHRAE
handbook section 215 and 195 or YORK Service
Manuals for detailed piping).
5. Check to see that the unit is installed and operated
within LIMITATIONS.
The following pages outline detailed procedures to be
followed to install and start up the chiller.
HANDLING
These units are shipped as completely assembled units
containing full operating charge, and care should be
taken to avoid damage due to rough handling.
The units are shipped with export crating unless it is
specified by Sales Order.
A unit should be lifted by inserting hooks through the
holes provided in unit base rails. Spreader bars should
be used to avoid crushing the unit frame rails with the
lifting chains. (See Fig. 6A & 6B)
INSPECTION
Immediately upon receiving the unit, it should be in-
spected for possible damage which may have occurred
during transit. If damage is evident, it should be noted
in the carrier’s freight bill. A written request for inspec-
tion by the carrier’s agent should be made at once.
See “Instruction” manual, Form 50.15-NM for more in-
formation and details.
LOCATION AND CLEARANCES
These units are designed for outdoor installations on
ground level, rooftop, or beside a building. Location
should be selected for minimum sun exposure and to
insure adequate supply of fresh air for the condenser.
The units must be installed with sufficient clearances
for air entrance to the condenser coil, for air discharge
away from the condenser, and for servicing access.
In installations where winter operation is intended and
snow accumulations are expected, additional height
must be provided to insure normal condenser air flow.
(See DIMENSIONS.)
FIG. – RIGGING THE CHILLER
LD01439