D.Unit shall be shipped with firmly attached labels that indicate name of manufacturer, chiller model num- ber, chiller serial number, and refrigerant used.
E.If the unit is to be exported, the manufacturer shall provide sufficient protection against sea water corro- sion, making the unit suitable for shipment in a standard open top ocean shipping container.
F.Chiller and starter shall be stored indoors, protected from construction dirt and moisture. Chiller shall be inspected under shipping tarps, bags, or crates to be sure water has not collected during transit. Protec- tive shipping covers shall be kept in place until machine is ready for installation. The inside of the protective cover shall meet the following criteria:
1.Temperature is between 40 F (4.4 C) and 120 F (48.9 C)
2.Relative humidity is between 10% and 80% non-condensing.
1.04WARRANTY
Warranty shall include parts and labor for one year after
Part 2 — Products
2.01EQUIPMENT
A.General:
B.Compressor:
1.One variable speed,
2.Compressor and motor shall be hermetically sealed into a common assembly and arranged for easy field servicing.
3.The compressor motor shall be accessible for servicing without removing the compressor base from the chiller. Connections to the com- pressor casing shall use
4.Compressor bearings must have individual design life of 500,000 hours or greater.
5.Compressor shall provide capacity modulation from 100% to 15% capacity without the use of hot gas bypass or mechanical unloaders.
6.Compressor shall be provided with a factory- installed positive pressure lubrication system to deliver oil under pressure to bearings and rotors at all operating conditions. Lubrication system shall include:
a.Oil pump with
b.Oil pressure sensor with differential readout at main control center.
c.Oil pressure regulator.
d.Oil filter with isolation valves to allow filter change without removal of refrigerant charge.
e.Oil sump heater [115 v, 50 or 60 Hz] con- trolled from unit microprocessor.
f.Oil reservoir temperature sensor with main control center digital readout.
g.All wiring to oil pump, oil heater, and con- trols shall be
7.Compressor shall be fully field serviceable. Compressors that must be removed and returned to the factory for service shall be unacceptable.
8.Acoustical attenuation shall be provided as required, to achieve a maximum (full load or part load) sound level, measured per AHRI Standard 575 (latest edition).
C.Motor:
1.Compressor motor shall be of the semi- hermetic, liquid refrigerant cooled, squirrel cage, induction type suitable for voltage shown on the equipment schedule.
2.If an open (air cooled) motor is provided, a compressor shaft seal leakage containment system shall be provided:
a.An oil reservoir shall collect oil and refriger- ant that leaks past the seal.
b.A float device shall be provided to open when the reservoir is full, directing the refrigerant/oil mixture back into the com- pressor housing.
c.A refrigerant sensor shall be located next to the open drive seal to detect leaks.
3.Motors shall be suitable for operation in a refrigerant atmosphere and shall be cooled by atomized refrigerant in contact with the motor windings.
4.Motor stator shall be arranged for service or removal with only minor compressor disassem- bly and without removing main refrigerant piping connections.
5.Full load operation of the motor shall not exceed nameplate rating.
6.One motor winding temperature sensor (and on spare) shall be provided.
7.Should the mechanical contractor choose to provide a chiller with an
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