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IOM 1264-4
WWW.DAIKINAPPLIED.COM
INSTALLATION
Type B Knockdown Disassembly
Type B knockdown units are shipped disassembled except for
the vessel stack 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 o plates before attempting to
loosen any ttings on them. Failure to do so can cause severe
bodily injury.
Reassembly
1. Reassemble the vessel stack, if disassembled, 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 o plates are used for
reassembly of the component.
3. Do not remove block os until ready to install piping. The
compressor and vessels have a Schrader valve on their
block o plates to be used for relieving 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 specications. 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 eld-
supplied R-134a or R-513A using stanard refrigeration
practices.
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