7610.483.4B 8/01 INSTRUCTION MANUAL ® Models: PR500, PR600, PR700, PR800, PR1000, PR1200, PR1600, PR2000, and PR2300 IMPORTANT - 380-420V/3ph/50Hz models - control transformer is wired to operate on a voltage range of 391 to 418. For voltages outside this range rewire transformer as shown on page 12.
GENERAL SAFETY INFORMA TION RECEIVING, MOVING, AND UNP ACKING PRESSURIZED DEVICES: A. RECEIVING This equipment is a pressure containing This shipment has been thoroughly checked, packed device. and inspected before leaving our plant. It was received in good condition by the carrier and was so acknowl- •...
IMPORTANT - Read prior to starting this equiptment. 1.2 Mounting Mount dryer on firm level surface. 1.0 INST ALLATION Dryers are furnished with removable shipping pads. 1.1 Location Remove prior to installation if desired. Dryers may be bolted to the floor if desired. For typical placement in a compressed air system, see drawing at right.
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1.3 Piping connections 1.4 Electrical connections IMPORTANT - Use copper supply wires only. If welding above unit make certain that Unit is designed to operate on the voltage, sparks are kept from contacting insulation around inlet phase, and frequency listed on serial number tag. and outlet piping.
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1.5 Automatic condensate drains Models with electric drains Verify that isolation valves are open. ISOLATION VALVE Verify time settings. After dryer is operating, verify that valve remains open long for all condensate to be ejected from the system. If all condensate is not ejected during valve open time, shorten time between operations.
2.0 OPERA TION 2.3 Operating check points – Check the following on a periodic basis: 2.1 Minimum/maximum operating conditions Power-on light glows indicating power to the dryer. Maximum inlet air pressure: refer to unit serial Compressor-on light (green) glows indicating the number tag refrigerator compressor is operating.
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DIGITAL PANEL- DIGITAL PANEL- PRESSURE PRESSURE Pressure In Gauge Pressure In Gauge OUT GAUGE OUT GAUGE STANDARD PANEL- STANDARD PANEL- Temperature In Gauge Temperature In Gauge REFRIGERANT SUCTION REFRIGERANT SUCTION HEAD PRESSURE GAUGE PRESSURE GAUGE PRESSURE GAUGE CONTROL PANEL FOR MODELS 500 TO 1200 CONTROL PANEL FOR MODELS 1600, 2000, 2300 POWER ON LIGHT (GREEN) REFRIGERANT PRESSURE CUT...
2.5 Shutdown and Restart 3.0 MAINTENANCE Shutdown 3.1 Air-cooled models Turn on/off switch to off "O". Leave dryer energized Condenser coil - Clean off accumulated dust and dirt unless servicing. monthly. Restart NOTE: A blow-gun is supplied with dryer for this purpose. NOTE: Dryer should be energized 24 hours prior to start-up.
SIZING Determining dryer capacity at actual operating conditions To determine the maximum inlet flow capacity of a dryer at various operating conditions, multiply the rated capacity from Table 1 by the multipliers shown in Table 2. EXAMPLE: How many scfm can a model 1000 handle when the compressed air to be dried is at 80 psig and 90°F; ambient air temperature is 80°F;...
ELECTRICAL CONNECTIONS (1) CUSTOMER ELECTRICAL CONNECTION (ENTRY ENCLOSURE) 3HP 575 VOLT UNITS ONLY (1) CUSTOMER ELECTRICAL CONNECTIONS (TERMINAL STRIP) 3HP THRU 12HP 230/460 VOLT AND 4HP THRU 12HP 575 VOLT UNITS WIRING DIAGRAM (ST ANDARD CONTROL P ANEL) LEGEND 1HTR PBS - DRYER-ON/OFF SWITCH 1HTR - CRANKCASE HEATER USE COPPER...
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WIRING DIAGRAM (DIGIT AL CONTROL P ANEL) LEGEND 1HTR PBS - DRYER-ON/OFF SWITCH 1HTR - CRANKCASE HEATER USE COPPER 1FU - FUSE, LITTELFUSE, FLM 6/10, 250V 2FU - FUSE, LITTELFUSE, KLDR 1/2, 600V SUPPLY WIRE ONLY 3FU - FUSE, LITTELFUSE, KLDR 1/2, 600V 230/400/460/575 VOLT F1 - FUSE,WICKMANN TYPE TR5 250mA, 250V HPS - HIGH PRESSURE SWITCH...
TROUBLESHOOTING GUIDE CORRECTIVE ACTION POSSIBLE CAUSES SYMPTOM 1. Residual free moisture remaining in A) Water downstream of dryer Blow out system with dry air downstream pipelines 2. Air by-pass system is open Check valve positions 3. Inlet and Outlet connections are reversed Check for correct connection 4.
WARRANTY The manufacturer warrants the product manufactured by it, when properly installed, operated, applied, and maintained in accordance with procedures and recommendations outlined in manufacturer's instruction manuals, to be free from defects in material and workmanship for a period of one (1) year from the date of shipment to the buyer by the manufacturer or manufacturer's authorized distributor, or eighteen months from the date of shipment from the factory, whichever occurs first (refrigerated dryers, models 25 thru 2300 scfm inclusive, for a period of two years from the date of shipment from the factory), provided such defect is discovered and brought to the manufacturer's attention within the aforesaid warranty period.