User manual HONEYWELL NMVL

[. . . ] The refrigerant is evaporating and thereby the suction gas is cooled down. Suitable for plants in general refrigeration and for serial products such as air driers, dehumidifiers, chiller units or icemaking machines with hot gas bypass control valves, for temperature reduction in multiple stage units and for suction gas cooled compressors. Specification Nominal capacity range 0. 52 to 75. 1 kW R22 (small orifice graduation for optimal control behaviour) Temperature range -50 °C to +65 °C Maximum pressure PS See table on page 2 Maximum test pressure PF See table on page 2 Max. [. . . ] bulb temperature 70 °C Static superheat See table on page 2 Length of capillary tube NMVL: 1. 5 m NMX: 3. 0 m Bulb diameter NMVL: 12 mm NMX: 16 mm Materials Body, base Thermal head Connections brass stainless steel copper or brass Copyright © 2009 Honeywell GmbH · Subject to change without notice EN0H-1930GE23 R0709 SERIES NMVL AND NMX Thermal Charges and Static Superheat Code for thermal charge DA TA Superheat R134a 15 K R22 15 K 30 K 45 K R404A 21 K 35 K R407C 12 K 26 K 40 K R507A 21 K 35 K PS (bar(a)) 34 29 29 PF (bar(a)) 37. 4 31. 9 31. 9 LB 30 K Further refrigerants on request. The superheat is based on t0 = +0 °C. Capacities Type Orifice size R134a 0. 3 0. 5 0. 7 1. 0 1. 5 NMVL 2. 0 2. 5 3. 0 3. 5 4. 5 4. 75 4. 5 4. 75 5 NMX 6 7 8 10 0. 36 0. 69 0. 96 1. 4 2. 2 2. 9 4. 0 6. 6 8. 7 11. 8 15. 9 11. 8 15. 9 20. 0 27. 6 35. 3 43. 3 51. 0 R22 0. 52 0. 99 1. 4 2. 0 3. 2 4. 0 5. 8 9. 3 12. 2 17. 0 22. 4 17. 0 22. 4 29. 1 42. 4 54. 5 64. 1 75. 1 Nominal capacity (kW)* R404A 0. 36 0. 68 0. 97 1. 4 2. 2 2. 8 4. 1 6. 5 8. 6 12. 0 15. 8 12. 0 15. 8 20. 5 29. 8 38. 3 45. 1 52. 8 R407C 0. 50 0. 95 1. 3 1. 9 3. 1 3. 9 5. 6 8. 9 11. 7 16. 4 21. 6 16. 4 21. 6 28. 0 40. 8 52. 5 61. 8 72. 3 R507A 0. 36 0. 69 0. 98 1. 4 2. 3 2. 9 4. 1 6. 6 8. 7 12. 1 15. 9 12. 1 15. 9 20. 7 30. 1 38. 7 45. 6 53. 3 * Capacities are based on t0 = +4 °C. tc = +38 °C and 1 K subcooled liquid refrigerant entering the valve. For other operating conditions see capacity charts in Honeywell catalogue or consult the Honeywell software. EN0H-1930GE23 R0709 2 Honeywell GmbH · Subject to change without notice SERIES NMVL AND NMX Dimensions and Weights Type Inlet (A) NMVL VD 6 mm ODF 1/4" ODF VLS angle 10 mm ODF 3/8" ODF 12 mm ODF 1/2" ODF 6 mm ODF 1/4" ODF VLSX angle 10 mm ODF 3/8" ODF 12 mm ODF 1/2" ODF 10 mm ODF VLS two-way 3/8" ODF 12 mm ODF 1/2" ODF 10 mm ODF VLSX two-way 3/8" ODF 12 mm ODF 1/2" ODF Connections Outlet (B) 10 mm ODF 3/8" ODF 12 mm ODF 1/2" ODF 16 mm ODF 5/8" ODF 10 mm ODF 3/8" ODF 12 mm ODF 1/2" ODF 16 mm ODF 5/8" ODF 12 mm ODF 1/2" ODF 16 mm ODF 5/8" ODF 12 mm ODF 1/2" ODF 16 mm ODF 5/8" ODF Pressure equalizer (C) 6 mm ODF 1/4" ODF 6 mm ODF 1/4" ODF 6 mm ODF 1/4" ODF 6 mm ODF 1/4" ODF 6 mm ODF 1/4" ODF approx. 0. 02 NMVL VD Honeywell GmbH · Subject to change without notice VLS(X) - two-way 3 VLS(X) - angle EN0H-1930GE23 R0709 SERIES NMVL AND NMX Type Inlet (A) + (B) NMX XD XLS two-way XLS angle XBS two-way 12 + 16 mm ODF 1/2" + 5/8" ODF 12 + 15 mm ODF 1/2" + 5/8" ODF 7/8" UNF Connections Outlet (C) + (D) 16 + 22 mm ODF 5/8" + 7/8" ODF 16 + 22 mm ODF 5/8" + 7/8" ODF 7/8" UNF Pressure equalizer 7/16" UNF - Weight (kg) approx. 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. · When tightening flare nuts of the flare connections grip at wrench flats on the valve body. · The screws fixing the valve body head to the base must be tightened in diagonal sequence. Torque 12 Nm for NMVL and 20 Nm for NMX. · Constructive modifications at the valve are not allowed. Superheat Adjustment In general the Honeywell liquid injection valves should be installed with the factory setting for the used refrigerant unaltered. This superheat adjustment is calibrated for the above mentioned superheat and optimal control behaviour. However, should it be necessary to adjust the superheat, turn the adjusting spindle as follows: Turning clockwise Turning counterclockwise = = reduced refrigerant mass flow, increase of superheat increased refrigerant mass flow, decrease of superheat One turn of the adjusting spindle alters superheat setting by approx. [. . . ] This superheat adjustment is calibrated for the above mentioned superheat and optimal control behaviour. However, should it be necessary to adjust the superheat, turn the adjusting spindle as follows: Turning clockwise Turning counterclockwise = = reduced refrigerant mass flow, increase of superheat increased refrigerant mass flow, decrease of superheat One turn of the adjusting spindle alters superheat setting by approx. [. . . ]