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Devair DRD 200 Instruction Manual

Refrigerated compressed air dryers
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7610.530.11A
9/01
Refrigerated Compressed Air Dryers
Models DRD 200, 250, 300, 400, 500, 750
Instruction Manual
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Contents
GENERAL SAFETY INFORMATION ............................... 2
RECEIVING, MOVING, UNPACKING ............................. 2
1.0 INSTALLATION ...................................................... 3
2.0 OPERATION .......................................................... 5
3.0 MAINTENANCE .................................................... 6
SIZING ......................................................................... 6
ENGINEERING DATA .................................................... 7
ELECTRICAL SCHEMATICS ........................................... 8
DIMENSIONS / WEIGHTS ............................................. 9
TROUBLESHOOTING .................................................... 10
PARTS LIST .................................................................. 11
WARRANTY ................................................................. 12
For Sales & Service Call: 705-722-5747 Ext.1
SERVICE DEPARTMENT: (724) 746-1100

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Summary of Contents for Devair DRD 200

  • Page 1: Table Of Contents

    7610.530.11A 9/01 Refrigerated Compressed Air Dryers Models DRD 200, 250, 300, 400, 500, 750 Instruction Manual Contents GENERAL SAFETY INFORMATION ....... 2 RECEIVING, MOVING, UNPACKING ......2 1.0 INSTALLATION ............3 2.0 OPERATION ............5 3.0 MAINTENANCE ............ 6 SIZING ................. 6 ENGINEERING DATA ............

  • Page 2: General Safety Information

    GENERAL SAFETY INFORMATION RECEIVING, MOVING, AND UNPACKING A. RECEIVING 1. PRESSURIZED DEVICES: This shipment has been thoroughly checked, packed This equipment is a pressure and inspected before leaving our plant. It was received containing device. in good condition by the carrier and was so acknowledged.

  • Page 3: Installation

    IMPORTANT: READ PRIOR TO STARTING THIS EQUIPMENT D. Standard units are designed to operate in ambients: Air-cooled: 45 to 110°F (7 to 43°C). 1.0 INSTALLATION Water-cooled: 45 to 130°F (7 to 54°C). 1.1 Location Installations in altitudes above 4500 feet (1370 meters) –...

  • Page 4: Operation

    1.2 Mounting 1.6 Electronic Demand Drain Installation Mount on floor or shelf free from vibration. 1.3 Piping connections Remove Service Panel by removing two shipping screws and turning (2) Quick Release Locks. Air Inlet—Connect compressed air line from air Reach inside and remove screws on Separator/filter source to air inlet.
  • Page 5 For Sales & Service Call: 705-722-5747 Ext.1 2.2 Start-up NOTE: On dryers with air-cooled condensers, regular condenser cleaning is recommended. Dirtiness of ambient air at installation site will determine frequency of service. A. Energize dryer. Green power on light will illuminate. Typically once a month is recommended.

  • Page 6: Temperature

    D. Operating check points Using the RS-232 port Check that green Power-on light is illuminated The RS-232 port is used to monitor dryer operation Check that green Compressor-on light is illuminated from a host computer. A (1 to 1) DB-9 cable is required if dryer is on in the manual mode or it is a to connect dryer and computer.

  • Page 7: Maintenance

    Dryer Driven Mode- the contacts will be energized SIZING and de-energized in parallel with the refrigeration Determining dryer capacity at actual operating conditions compressor of the dryer. Therefore, if the refrigera- tioncompressor is on, the contacts are energized; if To determine the maximum inlet flow capacity of a dryer the refrigeration compressor is off (manually or by a at various operating conditions, multiply the rated capacity system fault condition), the contacts will be de-...

  • Page 8: Engineering Data

    ENGINEERING DATA MODELS 250 & 300 400 & 500 MINIMUM - MAXIMUM OPERATING CONDITIONS Min.-Max. Inlet Air Pressure (compressed air at inlet to dryer) 30-200 psig (2.1-14 kgf/cm Max. Inlet Air Temperature (compressed air at inlet to dryer) 120°F (49°C) Min.-Max.

  • Page 9: Electrical Schematics

    For Sales & Service Call: 705-722-5747 Ext.1 ELECTRICAL SCHEMATIC LEGEND CON - CONTACTOR HTR - CRANKCASE HEATER MTR - COMPRESSOR - FUSE, SECONDARY - FUSE, PRIMARY - FUSE, PRIMARY 1FM - FAN MOTOR #1 2FM - FAN MOTOR #2, 1FPS - FAN PRES. SWITCH #1 2FPS - FAN PRES.

  • Page 10: Troubleshooting

    TROUBLESHOOTING GUIDE SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION 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 Check for correct connection reversed 4.

  • Page 11: Parts List

    PARTS LIST 208-230/3/60 380-420/3/50, 460/3/60, and 575/3/60 PARTS DESCRIPTION 250,300 400,500 250,300 400,500 Condensing Unit (air-cooled) 4130.127.16 4130.127.19 4130.125.14 4130.129.1 4130.127.17 4130.127.20 4130.125.15 4130.129.2 Compressor 4130.108.53 4130.108.55 4130.108.57 4130.108.64 4130.108.54 4130.108.56 4130.108.58 4130.108.65 Fan motor 6105.238.37 6105.238.39 6105.238.39 6105.238.39 6105.238.38 6105.238.40 6105.238.40 6105.238.40 Fan blade...

  • Page 12: Warranty

    All decisions by Devair Inc. with regard to this policy shall be final. Devair will not be responsible for any claimed defective materials returned other than in accordance with this statement of policy or without our prior authorization.

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