Form 10 - Unit separate from variable speed drive
The unit is shipped as two major assemblies:
• Chiller unit
• Variable speed drive
The unit is first factory assembled, refrigerant piped, wired and leak tested, then dismantled for
shipment. The evaporator and condenser assembly is not skidded.
All wiring integral with compressor is left on it, and all conduit is left on the shell.
Miscellaneous packaging of tubing, water temperature controls, wiring, isolators, and similar items.
The unit is shipped with refrigerant charge. See Figure 2.
Figure 2: Variable speed drive rigging
Inspection - damage - shortage
The unit shipment should be checked on arrival to see that all major pieces, boxes, and crates are
received. Each unit should be checked on the trailer or rail car when received, before unloading,
for any visible signs of damage. Any damage or signs of possible damage must be reported to the
transportation company immediately for their inspection. Johnson Controls will not be responsible
for any damage in shipment, at job site, or loss of parts. Refer to Shipping Damage Claims, Form
50.15-NM.
When the unit is received at the job site all containers should be opened and contents checked
against the packing list. Any material shortage should be reported to Johnson Controls
immediately. Refer to Shipping Damage Claims, Form 50.15-NM.
Chiller data plate
A unit data plate is mounted on the control center assembly of each unit, giving the unit model
number, design working pressure, water passes, refrigerant charge, serial numbers, and motor
power characteristics and connection diagrams.
Additional information can be found on the motor data plate. This information should be included
when contacting the factory about any problem relating to the motor.
Model YK (Style G) Centrifugal Liquid Chiller12
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