User manual HONEYWELL NMX DATASHEET

[. . . ] Series NMVL and NMX LIQUID INJECTION VALVES SUCTION PRESSURE CONTROLLED, INTERCHANGEABLE ORIFICE CARTRIDGES PRODUCT DATA Features · Suction gas controlled liquid injection valves · Part programme containing: Valve body head, orifice cartridge, connection base · Honeywell NMVL: - Only one valve body head needed both for internal and external pressure equalisation - Connection for pressure coupler integrated in the solder base - solder base two-way or angle construction · Honeywell NMX: - Balanced port - External pressure equalisation integrated in the valve body head - solder base two-way or angle construction - flare base two way construction NMVL · Adjustable superheat setting · Extreme durable due to stainless steel head and stainless steel diaphragm welded using protective gas · Interchangeable orifice cartridges · Liquid charge · Refrigerants: R134a, R22, R404A, R407C, R507A Further refrigerants on request. NMX Application Honeywell thermostatic liquid injection valves series NMVL and NMX are used in refrigeration applications to reduce the temperature of the suction gas. Depending on the superheat of the compressor suction gas, liquid refrigerant is injected into the suction line. [. . . ] 0. 49 NMX XD XBS - two-way XLS - angle EN0H-1930GE23 R0709 4 XLS - two-way Honeywell GmbH · Subject to change without notice SERIES NMVL AND NMX Type Code / Order Information (Part Programme) 1. Valve body head NMVL Series (NMVL, NMX) Code for thermal charge 3. Connection base VLS Series (VLS, XLS, XBS) Pressure equalizer VLS: X = external () = internal Connection size (Inlet x Outlet) D = two-way construction W = angle construction X 10 mm ODF x 12 mm ODF W DA Series (VD, XD) Orifice size 2. Orifice cartridge VD 0. 5 Installation · The valves may be installed in any position. · The external pressure equaliser line (VLSX and NMX) should be 6 mm or 1/4" in diameter. It is connected to the suction line downstream of the remote bulb. An overbow is recommended in order to prevent the ingress of oil into the equaliser line. · The bulb should preferably be positioned on the upper half of a horizontal suction line but never after a liquid trap. As a general rule, bulbs of liquid injection valves should be insulated to prevent them being affected by the ambient temperature. · Do not bend or squeeze the bulb when tightening the bulb clamp. · Never quench the solder base with water after soldering, this may cause cracks and distort the sealing surfaces. · When tightening flare nuts of the flare connections grip at wrench flats on the valve body. [. . . ] 0. 55 bar for NMVL and 0. 3 bar for NMX. Honeywell GmbH · Subject to change without notice 5 EN0H-1930GE23 R0709 SERIES NMVL AND NMX Application Sample 4 1 2 5 3 Power control with hot gas bypass valve and temperature reduction of suction gas with liquid injection valve 1 Liquid injection valve 2 Hot gas bypass valve 3 Thermostatic expansion valve 4 Liquid - solenoid valve 5 hot gas - solenoid valve Automation and Control Solutions Honeywell GmbH Hardhofweg 74821 Mosbach/Germany Phone: +49 (0) 62 61 / 81-475 Fax: +49 (0) 62 61 / 81-461 E-Mail: cooling. mosbach@honeywell. com www. honeywell-cooling. com EN0H-1930GE23 R0709 6 Manufactured for and on behalf of the Environment and Combustion Controls Division of Honeywell Technologies Sàrl, 1180 Rolle, Z. La Pièce 16, Switzerland by its authorized representative Honeywell GmbH KAT-NV-002 Honeywell GmbH · Subject to change without notice [. . . ]