SCM Cuno 2 Aqua, Manual

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EN
OEM Manual – CUBO
2
AQUA
UMT/WG T BT Rev3.0 – 08/10/2021 Pag. 15-EN
Total System Charge Receiver / Gas Cooler / Liquid line/ Evap
≤ 7.2kg
3.9 kg
Is charge >4kg (min charge)? Charge < 4 kg 3.9 kg
Total refrigerant to charge is 4kg.
Example 2
Receiver Standing charge 2.4 kg
PHE Gas cooler Standing charge 0.21 kg
Evaporator Volume 12 dm
3
Calculated from first graph 5.2 kg
Pipe length 8m x K65 3/8” Calculated from second graph 0.4 kg
Pump down (from
evaporator)
Receiver / Evap ≤ 7.2 kg
7.6 kg
Total System Charge Receiver / Gas Cooler / Liquid line/ Evap
≤ 7.2kg
8.21 kg
Is charge >4kg (min charge)? Charge >4 kg 8.2 kg
Configuration not permitted. In pump-down condition the refrigerant inside the receiver
exceed the max quantity (7,2kg)
Don’t overfeed the unit with excessive charge to avoid compressor damaged.
7.2.4 Charging procedure

For charging, use port 1/4SAE (7/16”-
20UNF) on service valve
(PS120bar - CASTEL 6110E/X15)
Important remarks about the CO2 charging procedure:

CO2 of purity class of N4.0 or comparable or with moisture content <10 ppm must be used.