Évaluations - 2, GPA: 4 ( )

Fabricant : HUGFEN Taille : 1.48 mb Nom Fichier : Langue d'enseignement:

. Any work done to the Compressed Air Dryer involving entry into the control panel, fitting gauges, adjusting controls, charging the system, evacuating the system or opening the system in any way, must be carried out by a FULLY QUALIFIED REFRIGERATION ENGINEER. A City and Guilds 2078 or equivalent certificate is strongly advised and will soon be mandatory. Description of Operation The saturated compressed air enters the evaporator and is pre-cooled by the outgoing cooler air. The internal refrigerant circuit is then used to further cool the air to its required dewpoint. Once dewpoint is achieved, the moisture condenses, and the water droplets are ejected via the condensate drain system. The cold, dry air is then warmed by the incoming warm air and discharged, dry, to the downstream pipework. The refrigerant circuit is of conventional design operating on ozone benign Refrigerant R134a of R407c and incorporates an hermetic compressor, combined air/air and evaporator type heat exchanger, an air cooled condenser, an expansion device (capillary tube or thermostatic expansion valve), a filter/dryer, a hot gas bypass valve. The refrigeration circuit is controlled by means of a simple but effective panel mounted controller Schematic Flow and General Arrangement Drawings Model Numbers Schematic Flow Diagram Number Outline Arrangement Drawing Number C9-1, C14-1, C19-1 PS1061-C-021 PS1061-C-001 C31-2, C39-2, C58-2 PS1061-C-021 PS1061-C-002 C92-3, C120-3 PS1061-C-021 PS1061-C-003 C147-3 PS1061-C-021 PS1061-C-004 C175-4, C238-4 PS1061-C-021 PS1061-C-005 Technical Description of Components 1. Compressor This is a fully hermetic, high back pressure single phase type; the internal components being mounted on springs to minimise vibration. 2. Heat Exchanger The heat exchanger is coil / tube design and incorporates an air / air and refrigerant / air heat exchanger with an integral moisture separator 3. Air Cooled Condenser A fan assisted air cooled condenser is used to remove the remaining heat from the refrigerant. Air movement is achieved by a multi-bladed propeller type fan directly driven by a single phase motor. 4. Hot Gas By-pass Valve This valve is installed such that discharge gas may be diverted to the suction line when the suction temperature starts to fall below a preset level. This level is set such that the moisture removed from the system cannot freeze in the evaporator. 5. Controller A digital readout temperature controller is fitted to allow the operating condition of the dryer to be monitored and drain valve settings to be adjusted. 6. Casing The unit is housed in coated sheet steel casing. Removable covers are fitted where necessary to provide access for service or repair. Technical Data Table Model C9-1 C14-1 C19-1 C31-2 C39-2 C58-2 Nominal Airflow † m3/min 0.58 0.83 1.16 1.83 2.33 3.5 Nominal Pressure Drop bar 0.3 0.3 0.3 0.3 0.3 0.3 Maximum Working Pressure bar 13 13 13 13 13 13 Maximum Operating Ambient °C 43 43 43 43 43 43 Maximum Standing Ambient °C 53 53 53 53 53 53 Minimum Ambient °C 5 5 5 5 5 5 Width mm 380 380 380 388 388 388 Depth mm 500 500 500 718 718 718 Height mm 490 490 490 600 600 600 Air Connections BSP . . . 1 1 1 Drain Connections mm od 8 8 8 8 8 8 Electrical Supply § -220-240 volt / 1 phase / 50-60 Hz Installed Power kW 0.45 0.57 0.66 0.96 0.96 0.85 Full Load Current Amps 2 2.6 3 4.35 4.35 3.9 Refrigerant -R134a R407C Refrigerant Charge kgs 0.35 0.35 0.55 0.8 0.8 1.3 Notes: † Nominal airflow in m3/min FAD at 20°C, working pressure 7.0 bar gauge with an inlet temperature of 35°C in an ambient of 25°C. Please note: applying the Dryer for higher than standard ambient and / or air inlet temperature will derate the performance. ‡ Pressure switches are factory set and must ON NO ACCOUNT be altered from the above settings. § For voltage tolerance refer to respective schematic wiring diagram. Technical Data...

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