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ARTC-SVX007A-EN
Installation Piping
Install Piping and External
Components
Proper support of piping and pipe hangers must consider
the weight of the piping as well as the water weight inside
the pipes.
Figure 4. Recommended chiller piping
Initial Flushing of Piping
After installation of system piping and before connection to
the chiller system, it is important to clean and remove
debris, weld slag, and other contamination deposited
during fabrication of the piping system.
Typical flushing includes hot water with mild detergent
followed by a dilute phosphoric acid solution until all visible
residue is removed.
Cleaning liquids, acids, and detergents compatible with
copper and carbon steel must be used. Consult a
professional fluid treatment specialist when in doubt.
After detergent and chemical cleaning, flush the water
piping with fresh water for one hour to remove any
remaining cleaning compounds.
Fill with Water/Glycol Solution
In most instances, the installing contractor is responsible
for charging glycol into the unit. If not charged, add glycol
according to these instructions:
1. Mix the concentrate of propylene glycol in a tank or
drum for transfer into the chiller.
2. Mix the glycol and water externally before filling the unit
to prevent clogging of the chiller piping with a heavy
concentrate.
Only after the above steps have been completed should
the fluid piping be connected to the chiller system.
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