Mandik CPV Installation, Commissioning And Maintenance page 16

MANDÍK CPV Installation, commissioning, and maintenance
blocks of the unit or the heat exchangers. Connections must be executed so that expansion of
the piping as a result of temperature changes does not result in excessive loading of the ports.
Two wrenches must be used to tighten connections. Thread deformation is a significant risk
otherwise!
A vent valve, if installed, must be located at the highest point on the hot / cold water supply
line.
Always connect heat exchangers in a counter-flow configuration!
Fig 5 Right-hand unit configuration
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A capillary freeze-protection thermostat is integrated into the unit, fully installed and
connected to the control system from the factory.
The mixing loop for heat control, if part of delivery, is provided in a separate cardboard box.
The installation and service manual is attached to the mixing loop packaging. The manual
provides detailed information on safe installation, commissioning, and maintenance.
Water supplying the heat exchangers must be treated to remove contaminants that cause
fouling, especially those that corrode steel and cast iron components. The water must be
chemically treated to the parameters specified in ČSN 07 7401 to prevent this contamination.
• Hydrogen exponent pH 7 - 9.
• Water hardness 1.0 mval.l
• Chloride content, max. 30 mg.l
IZU 06/2021
Fig 6 Left-hand unit configuration
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MANDÍK, a.s., www.mandik.cz
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