Table of Contents
Advertisement
GENERAL
This instruction describes the installation of a MODEL
YK Millennium Liquid Chilling Unit. This unit is shipped
as a single factory assembled, piped, wired package,
requiring a minimum of field labor to make chilled water
connections, condenser water connections, refrigerant
atmospheric relief connections, and electrical power
connections. (Refrigerant and oil charges shipped sepa-
rately unless optional condensor isolation valves are
ordered.)
Chillers can also be shipped dismantled when required
by rigging conditions, but generally it is more economi-
cal to enlarge access openings to accommodate the
factory assembled unit. Chillers shipped dismantled
MUST be field assembled under the supervision of a
YORK representative, but otherwise installation will be
as described in this instruction.
FIELD ASSEMBLED UNITS ONLY
Use Form 160.52-N6 in conjunction with this installa-
tion instruction. This instruction will be furnished with all
units that are to be field assembled. Extra copies may
be ordered from the York Publication Distribution Cen-
ter.
The services of a YORK representative will be furnished
to check the installation, supervise the initial start-up
and operation of all chillers installed within Continental
United States.
CAUTION: The YORK Warranty may be voided if the
following restrictions are not adhered to:
1. No valves or connections should be opened under
any circumstances because such action will result in
loss of the factory nitrogen charge.
2. Do not dismantle or open the chiller for any reason
except under the supervision of a YORK represen-
tative.
3. When units are shipped dismantled, notify the near-
est YORK office in ample time for a YORK represen-
tative to supervise rigging the unit to its operating
position and the assembly of components.
4. Do not make final power supply connections to the
compressor motor or control center.
5. Do not charge the compressor with oil.
6. Do not charge the unit with refrigerant.
7. Do not attempt to start the system.
8. Do not run hot water (110°F max.) or steam through
the cooler or condenser at any time.
14
INTRODUCTION
SHIPMENT
The chiller may be ordered and shipped in any of the
following forms:
Form 1 – Factory Assembled Unit, complete with mo-
tor, refrigerant and oil charges.
1. The motor/compressor assembly mounted,
2. Miscellaneous material – Four (4) vibra-
Form 2 – Factory Assembled Unit, complete with mo-
tor (refrigerant and oil charges shipped sepa-
rately).
1. The motor/compressor assembly mounted,
2. Miscellaneous material – Four (4) vibra-
Form 3 – Driveline Separate From Shells – Shipped
as three major assemblies. Unit first factory
assembled, refrigerant piped, wired and leak
tested; then dismantled for shipment. Com-
pressor/motor assembly removed from shells
and skidded. Cooler/condenser is not skid-
ded.
All wiring integral with compressor is left on
it, and all conduit is left on shell. All openings
on compressor, oil separator, and shell are
closed and charged with dry nitrogen (2 to 3
PSIG).
Miscellaneous packaging of control center,
tubing, water temperature controls, wiring, oil,
isolators, solid state starter (option), etc.; re-
frigerant charge shipped separately.
with all necessary interconnecting piping
assembled. MicroComputer Control Cen-
ter is mounted on the unit. Complete unit
factory leak tested, evacuated and charged
with R-134A.
An optional Solid State Starter or Variable
Speed Drive can be factory mounted and
wired.
tion isolation pads (or optional spring iso-
lators and brackets).
with all necessary interconnecting piping
assembled. MicroComputer Control Cen-
ter is mounted on the unit. Complete unit
factory leak tested, evacuated and charged
with holding charge of nitrogen.
An optional Solid State Starter or Variable
Speed Drive can be factory mounted and
wired.
tion isolation pads (or optional spring iso-
lators and brackets).
YORK INTERNATIONAL
Advertisement
Table of Contents
