Zanotti DBO Serie Mode D'emploi page 26

Connection of refrigerating system: use the specially-supplied cock connections on the condensing unit and on the
evaporator. With closed cocks put pipe fittings in vacuum conditions; then open the cocks and start the unit.
Fit a drain line to the condensate water drain connection in the lower part of the evaporator.
Make reference to the pictures supplied to obtain a good operation of the system.
If necessary, top up with refrigerant.
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