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VERY IMPORTANT:
• Maximum total length between CCUF unit and the refrigerant condenser is 20 equivalent meters. This means:
o One piping bend corresponds to 1 equivalent meter
o One-way valve corresponds to 4 equivalent meter
• In case the CCUF condenser-less unit will be placed at a lower level and the refrigerant condenser will be placed at a
higher level (for example on the roof) the maximum vertical length must not exceed 10 meters (with “siphons”)
• In case the CCUF condenser-less unit will be placed at a higher level and the refrigerant condenser at a lower level
the maximum vertical length must not exceed 5 meters
During the commissioning, the correct oil return and sub-cooling have to be checked to avoid compressors damages.
The sight glass should not show any gas bubbles during the start-up of the system. Sub-cooling is required.
Diagrams showing the connection and maximum
distances between CCUF unit and remote condenser
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