IM 1128-2
5
Type I Reassembly
Description
TYPE I:
The compressor with its terminal box is removed and placed on a skid as a separate package.
The suction piping is removed and shipped loose. All other piping will be disconnected from the
compressor and remain attached to the vessel stack, where possible. Wiring and sensors to the
compressor will be disconnected, rolled up and tied to the control panels. 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
and will also include a container of adhesive.
4.
The unit vessel stack will be insulated at the factory.
5.
This unit will be tested with a full refrigerant charge at the factory and the charge will be removed
after testing.
6.
Refrigerant will not be shipped with the unit and must be secured locally and furnished and installed
by the installer.
7.
Bracket and cable kit will be included for all unit-mounted starters and/or cableway for mini-cabinet
starters.
8.
All free piping ends will be capped.
9.
Touch-up paint and stick-on wire ties will be included.
10.
Lubricant will be shipped in containers from the factory.
11.
The starter will ship loose.
12.
All field piping connections will be Victaulic, flanged, O-ring face seal or copper brazing.
13.
The unit control panel and compressor control panel will be attached to the unit with loose sensor
wires tied up behind the panel.
Reassembly Steps
NOTE: Additional instructions may be shown on the assembly drawings.
1.
Mount the compressor on the stack. Be careful to avoid damaging lines already mounted on the unit.
Mounting bolts, washers and nuts are shipped loose. Leave the mounting bolts loose until the suction
and discharge lines are installed and aligned.
During assembly, bolts holding block-off plates (motor cooling connection, for example), are used for
reassembly of the component. See Figure 1 or Figure 2 for the location and description of the block-
offs.
2.
Do not remove block-offs until ready to install piping. The compressor and vessels have a Schrader
valve on their block-off plates to be used for relieving the helium holding charge.
WARNING
Remove compressor and vessel holding charge through the Schrader valve in the block-off plates
before attempting to loosen any fittings on them. Failure to do so can cause severe bodily injury.
3.
Install the suction and discharge piping (see Figure 3). Before tightening the Victaulic couplings,
position the suction and discharge piping so that the compressor can be aligned to give the best fit-up.
When this is achieved, secure the compressor mounting bolts and proceed with installing the Victaulic
couplings using a light coating of Victaulic lubrication.
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Summary of Contents for WMC-B 145D
Page 17: ...IM 1128 2 17 Figure 18 Unit panel wiring and connections Figure 15 Unit panel detail ...
Page 25: ...IM 1128 2 25 Figure 18 Compressor Control Box ...
Page 26: ...26 IM 1128 2 Figure 19 Unit Control Box ...
Page 27: ...IM 1128 2 27 Figure 20 Flow Switch Wiring ...
Page 28: ...28 IM 1128 2 Unit Photographs Figure 21 WSC 087 Photo Figure 22 WSC 100 Photo ...
Page 29: ...IM 1128 2 29 Figure 23 WSC 126 Photo ...
Page 31: ...IM 1128 2 31 Field Insulation Guide Figure 24 Insulation Requirements ...
Page 32: ...32 IM 1128 2 ...
Page 51: ...IM 1128 2 51 Figure 32 Type IV Liquid Line Removal Figure 33 Type V Liquid line Removal ...
Page 52: ...52 IM 1128 2 Figure 34 Type V Vessel Separation ...
