Liquid sight glasses
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7.1 n Functional features n CARLY advantages Liquid sight glasses VCYL n Applications • Immediate and direct monitoring of flow, condition or moisture content of the refrigerant in its liquid or diphasic phase in refrigerating and air conditioning installations. C o Products are compatible with HFCs, HCFCs, CFCs, as well as with their associated oils and additives. Products are designed for use of non-hazardous refrigerants from group 2 of PED 97/23/EC. o Product classification in CE categories is performed using the PED 97/23/EC table, corresponding to a nominal diameter-based selection. o Visualisation of refrigerant through glass. o A moisture indicator sensitive to moisture and resistant to acids is positioned under the glass. o Moisture presence is characterised by a modification of the indicator colour; this modification is reversible. o The sight glasses die-cast brass body guarantees perfect resistance to corrosion. o The brazed liquid sight glasses’ long copper sleeves allow quick and safe brazing of connections; since the body and the glass are attached, brazing can be performed without removing the glass. o The large size of the glass and the absence of a central hygroscopic tip ensure excellent visibility. o The moisture indicator fastening system ensures protection against erosion and prevents fouling by oils and dirts present in the circuit; it also eliminates any turbulence that would hinder proper vision of the refrigerant and does not lead to any pressure drop. o The sealed design and the seaming principle of the chosen glass ensure perfect air-tightness. o Two very thick hexagon head bolts facilitate sight glasses positioning and handling for tightening of connections to screw. o The male/female sight glasses to screw are provided with a guided copper gasket that allows fast and reliable positioning. o GOST certified products. At the heart of refrigeration technology 02/08 Non-binding documents

7.2 * Assembly is performed on the liquid line between the filter drier and the pressure relief valve. * For liquid sight glasses with female connections to screw, pay attention to the correct positioning of the supplied copper seal. * The indication of moisture presence is quick; in return, the moisture indicator indicates the return to normal situation a few hours only after implementation of a drying system (DCY filter drier, or CCY HP/N or PLATINIUM 48 drying cores). * General assembly precautions: refer to chapter 115. Liquid sight glasses VCYL n Recommendations C 02/08 Non-binding...

7.4 Liquid sight glasses VCYL n Technical features C 02/08 Non-binding documents At the heart of refrigeration technology (1) The working pressure is limited to the PS BT value when working temperature is lower than or equal to TS BT value. (2) Classification by diameter, according to PED 97/23/EC (refer to chapter 0 page 7). n Spare parts CARLY references PS (bar) TS maxi (°C) TS mini (°C) DN (inch) DN (mm) Maximal working pressure PS BT (bar) Working pressure (1) Maximal working temperature Minimal working temperature TS BT (°C) Working temperature (1) CE Category (2) Nominal diameter...