Daikin Navigator WWV Installation, Operation And Maintenance Manual page 18

Type B Knockdown Disassembly
Type B knockdown units are shipped disassembled except
for the vessel stack ("Figure 15: Vessel Blockoff Locations" on
page 17) and are shipped without refrigerant. If the stack
size or weight dictates further disassembly, the vessels can
be separated by disconnecting any interconnecting wiring and
tubing and then unbolting the tube sheet braces while ensuring
the vessel weights are safely supported. Vessels have holes
designed into each tubesheet for lifting purposes.The vessels
and compressors have an inert gas holding charge that must
be released prior to attempting to open any connection.
WARNING
Remove compressor, piping, or 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.
Reassembly
1. Reassemble the vessel stack, if dissassembled, and
reconnect any wiring and tubing.
2. 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 are used
for reassembly of the component.
3. 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 relieveing the inert gas
holding charge.
4. Install the suction, discharge, and liquid line piping.
For Type B knockdown, the piping is shipped in crates
and on pallets. Tighten bolts after each line has been
installed and aligned, referring to detailed knockdown
instructions included in the chiller control panel for
discharge line bolt torque specifications. Insulate the
suction line with the insulation and glue provided.
5. Install the control panel and reattach wiring to the unit.
6. Install VFD on the mounting brackets and reconnect
wiring to the unit control panel and compressor terminal
box. Refer to detailed knockdown instructions included in
the chiller control panel to properly place the wires.
7. Pressure (leak) test, evacuate, and charge with field-
supplied HFC-134a using stanard refrigeration practices.
IOM 1264-1 • NAVIGATOR
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MODEL WWV CHILLERS 18
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www.DaikinApplied.com