McQuay WMC-B 145D, Руководство по установке

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IM 1128-2 3
WSC Chiller Introduction
It is estimated that fifty percent of retrofit applications require partial or complete disassembly of the
chiller. McQuay International offers three solutions to the disassembly and reassembly effort on Model
WSC, single compressor centrifugal chillers.
NOTE : Your service representative for McQuay
International must be in attendance during knockdown and reassembly.
TYPE I: The compressor is removed and put on a skid. All associated wiring and piping possible will
remain on the vessel stack. The remaining loose parts will be packaged in a separate crate.
1. Block-offs will cover all openings on the compressor and vessels.
2. The compressor and vessels will receive a 5-psi helium holding charge.
3. The compressor will not be insulated at the factory. An insulation kit will be shipped with the unit.
4. The starter will ship loose. Bracket and cable kit to be included for unit-mounted starters and/or
cableway for mini-cabinet starters.
5. The evaporator will be insulated at the factory.
6. Refrigerant will not be shipped with the unit and must be secured locally and furnished and
installed by the installer.
7. Lubricant will be shipped in containers from the factory for field installation.
8. All field piping connections will be Victaulic

, O-ring face seal or copper brazing.
9. All free piping ends will be capped.
10. Touch-up paint will be included.
11. The unit will undergo the rigorous, full McQuay International test program at the factory.
12. Contact local your service representative for McQuay International for pricing and scheduling of
required installation supervision.
TYPE II: The compressor with its terminal box is removed and placed on a skid. The condenser,
evaporator, oil pump, oil cooler and tube sheet supports will remain connected only by their attachment
bolts, ready for field disassembly and reassembly in the building. All wiring and piping that
interconnects the components will be removed. The loose parts will be packaged in a separate crate.
1. Block-offs will cover all openings on the compressor and vessels.
2. The compressor and vessels have a 5-psi helium holding charge.
3. The compressor will not be insulated at the factory. An insulation kit will be shipped with the unit
and will also include a container of adhesive.
4. Only the evaporator shell will be factory insulated. Loose insulation will be shipped for the
suction line and remaining surface areas.
5. The starter will ship loose.
6. Refrigerant will not be shipped with the unit and must be secured locally and furnished and
installed by the installer.
7. Lubricant will be shipped in containers from the factory for field installation.
8. All field piping connections will be Victaulic, flanged, O-ring face seal or copper brazing.
9. Bracket and cable kit will be included for all unit-mounted starters and/or cableway for mini-
cabinet starters.
10. All free piping ends will be capped.
11. Touch-up paint and stick-on wire ties will be included.
12. A bolted bracket instead of a weld will mount the oil pump.
13. The discharge piping assembly will have a bolted flange connection (instead of welded) at the
condenser. This assembly will ship loose.
14. Piping that remains attached to a component will be supported if it is not rigid.
15. The chiller will not be run-tested at the factory but the compressor, oil pump assembly and heat
exchangers will be tested as sub-assemblies.