York YMC2 - Variable Speed Drive Functionality

JOHNSON CONTROLS
12
FORM 160.84-N1
ISSUE DATE: 11/22/2016
SECTION 1 - OVERVIEW
Shells
The evaporator and condenser are assembled prepared
for shipping but not skidded.
• All conduit is left on the shells.
• All openings the shells are closed and charged
with a 3 to 7 PSIG (20 to 50 kPa) holding charge
of dry nitrogen.
Variable Speed Drive (VSD)
The VSD is skidded and shipped separately from the
assembled chiller.
• The VSD is lled with glycol for shipping. The
VSD operating coolant (inhibited water) is
shipped with the other loose items.
Miscellaneous Material
The following assemblies and items are shipped to-
gether:
• OptiView™ Control Center
• Power Panel
• Four (4) vibration isolation pads (or optional
spring isolators and brackets).
• Other shipped loose items, including piping, wa-
ter temperature controls, wiring, etc.
• VSD operating coolant (inhibited water)
Form 7
Prior to shipping, the unit is completely assembled at
the factory. Interconnecting piping is assembled and
the complete unit is wired and leak-tested.
The unit is dismantled and shipped as follows:
1. The driveline (compressor/motor assembly).
2. The evaporator.
3. The condenser.
4. The Variable Speed Drive (VSD).
5. Refrigerant charges shipped separately.
6. Miscellaneous shipped loose items.
Arrangements with the local service office must be
made to ensure refrigerant is on-site when the unit is
ready to be charged.
Driveline
The driveline (compressor/motor assembly) is removed
from shells and skidded.
• All integral wiring is left on the compressor.
• All wiring harnesses on shells are removed.
• All openings on the compressor are closed and
shipped charged with a 3 to 7 PSIG (20 to 50 kPa)
holding charge of dry nitrogen.
Shells
The evaporator and condenser are separated at the tube
sheets and prepared for shipping separately but not
skidded.
• All conduit is left on the shells.
• Refrigerant lines between shells are anged and
capped, requiring no welding.
• All openings the shells are closed and charged
with a 3 to 7 PSIG (20 to 50 kPa) holding charge
of dry nitrogen.
Variable Speed Drive (VSD)
The VSD is skidded and shipped separately from the
assembled chiller.
• The VSD is lled with glycol for shipping. The
VSD operating coolant (inhibited water) is shipped
with the other loose items.
Miscellaneous Items
The following assemblies and items are shipped to-
gether:
• OptiView™ Control Center
• Power Panel
• Four (4) vibration isolation pads (or optional
spring isolators and brackets).
• Operating coolant (inhibited water)
• Other shipped loose items, including piping, wa-
ter temperature controls, wiring, isolators, etc.
Form 9
Prior to shipping, the unit is completely assembled at
the factory. Interconnecting piping is assembled and
the complete unit is wired and leak-tested.