4.5
Attaching the water connections
The unit is intended to be connected to a cooling and/or heating water circulation that
cannot damage the heat exchanger. More detailed information on water connections
are specified separately for each order, depending on the accessories selected.
Note! Connecting the unit to the water circuit causes pressure losses. For
information on unit type-specific pressure losses in the water circuit, please contact
the manufacturer.
Note! Do not circulate water in the unit if the power supply is off.
Figure 12: Water connections of the unit
1. Before you connect the unit to a cooling and/or heating water circulation,
make sure that the water in the water circuit has
a. a maximum operation pressure of 10 bar
b. a minimum temperature of +4 °C (inlet water)
Note! Water must never be allowed to freeze inside the coil, condensate basin, or
piping of the unit.
c. a maximum temperature of +80 °C (inlet water).
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GIANT Vari – Installation, Operation, and Maintenance Manual