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Weekly Maintenance

Inspect the ambient air filter weekly and clean it if necessary.  

Dirty air filters cause loss of efficiency and may result in 

damage to the product.

Air Filter — Clean accumulated dust and dirt from air filter 

weekly as required.
1.  Open ambient filter side door.
2.  Remove air filter by sliding upwards.
3.  Wash with soap and water and allow to dry before 

reinstalling.

 

NOTE:

  Do not use solvents to clean filter.

4.  Reinstall air filter and right side door.
5.  If the filter is damaged, replace it with a new filter.  

Contact your distributor.

  Do not operate the dryer without the ambient 

air filter.  Permanent condenser damage may result.

Monthly Maintenance

For air-cooled condensers, it is recommended to inspect 
the condenser coils monthly.  If necessary, remove dirt or 
other particles with compressed air from an OSHA-approved 
air nozzle that limits its discharge pressure to 30 psig 
(2.1 kgf / cm²).

Electronic Drain Valve Disassembly and Servicing

 Do not disassemble drain valve timer or attempt 

to repair electrical parts.  Replace timer if defective.

The drain valve discharge condensate through a full-port 

drain opening.  The valve body may need to be cleaned under 

conditions of gross particulate contamination.

To disassemble the drain valve body for cleaning and other 

maintenance:
1.  Turn power switch off.
2.  Disconnect main power supply to dryer.
3.  Depressurize unit.
4.  Lock out and tag power supply in accordance with OSHA 

requirements.

  If power supply is not connected and unit is 

not depressurized before disassembly, serious personal injury 

and valve damage may result.
5.  Removes hoses that connect the drain valve to the drain 

valve strainer.

6.  Remove screw and washer from front of the drain valve.
7.  Remove the power supply connector and gasket (with 

the timer assembly if attached) from the solenoid coil 

housing.  Do not damage or lose the gasket.

8.  Remove coil fixing nut and spring washer from top of 

solenoid coil housing.

9.  Lift solenoid coil housing off solenoid core in valve body.
10.  Unscrew solenoid core from valve body.

Once the drain valve is disassembled, the following 

maintenance can be performed.
1.  Inspect internal parts of valve body; clean or replace as 

required.

 

NOTE:

  Replace solenoid valve if component damage is 

observed.

2.  Remove debris from valve body.
3.  Wipe solenoid core components with a clean cloth or 

blow out debris with compressed air from an OSHA-

approved air nozzle that limits its discharge pressure to 

30 psig.

4.  Check that the plunger assembly is clean and moves 

freely in housing.

5.  If timer is attached to valve body, check electrical 

continuity across timer assembly.

To reassemble the drain valve, reverse the sequence 

of the preceding steps.  After the drain valve is 

reassembled, connect the main power supply to the 

dryer.  When the dryer is returned to service, check 

the drain valve for air or condensate leaks; tighten 

connections as required to correct leaks.  Check the drain 

cycle; adjust the timer according to the procedure in the 

drain valve adjustment section.

Returns to Manufacturer

If the dryer or a component of the dryer must be returned to 

the manufacturer, first call your local distributor for a return 

authorization number and shipping address. Your distributor 

will inform you whether the dryer or only a component must 

be returned. Mark the package with the return authorization 

number and ship freight prepaid as directed by your local 

distributor.

Содержание RNP100

Страница 1: ...3227498 Rev A AUGUST 2012 RNP SERIES REFRIGERATED COMPRESSED AIR DRYERS OPERATOR MANUAL RNP75 RNP100 RNP125 RNP150 RNP200 RNP250 RNP300 RNP400 RNP500 ...

Страница 2: ...ations for the requirements for breathing quality air RECEIVING MOVING AND UNPACKING A RECEIVING This shipment has been thoroughly checked packed and inspected before leaving our plant It was received in good condition by the carrier and was so acknowledged Check for Visible Loss or Damage If this shipment shows evidence of loss or damage at time of delivery to you insist that a notation of this l...

Страница 3: ...nnot tolerate undried air for short periods install a second dryer in the bypass line Compressed air systems commonly require filters to remove compressor oils particulates condensed liquids and other contaminants When an oil removal filter is used it should be installed downstream of the refrigerated dryer At this location the life of the replaceable filter element is prolonged since some of the ...

Страница 4: ...that automatically discharges condensate from the dryer Drain valve operation is controlled by a drain valve timer The drain opening can be set from 0 5 seconds to 9 seconds The drain cycle can be set from 0 5 minutes to 9 minutes Models 75 through 150 have the timer mounted directly on the drain valve For models 200 through 500 drain valve adjustments are made on the Dryer System Monitor DSM Elec...

Страница 5: ...n indicates low orange indicates medium red indicates high 5 Part of the graphic for the dew point temperature scale The thermometer indicates the high hot end of the scale 6 Six 6 LEDs that indicate dew point temperature according to the graphic scale above the LEDs The color of each LED matches the colored bars 7 Adjustment knob for the drain valve open time The values on the dial correspond to ...

Страница 6: ...tem The dryer is designed to run continuously Let the dryer run even when the demand for compressed air is interrupted the dryer will not freeze up SHUTDOWN When the dryer must be shutdown for maintenance or other reasons use the following procedure If electrical repairs must be made 1 Turn off the power switch 2 Disconnect the main power supply 3 Lock out and tag the power supply in accordance wi...

Страница 7: ...onnect the drain valve to the drain valve strainer 6 Remove screw and washer from front of the drain valve 7 Remove the power supply connector and gasket with the timer assembly if attached from the solenoid coil housing Do not damage or lose the gasket 8 Remove coil fixing nut and spring washer from top of solenoid coil housing 9 Lift solenoid coil housing off solenoid core in valve body 10 Unscr...

Страница 8: ...tor operation Replace if necessary Ambient temperature too high Verify ambient temperature throughout day High pressure switch activated models 200 to 500 only Press manual reset button to switch to reset button Compressor overheated Turn dryer off Contact local distributor Compressor defective Turn dryer off Contact local distributor No condensate discharging from dryer Drain strainer clogged Cle...

Страница 9: ... inlet temperature 100 psig inlet pressure 100 inlet relative humidity 100 F ambient temperature 60Hz Per CAGI ADF 100 b Refer to dryer data plate for refrigerant charge c Compressor capacity 35 F evaporating temperature 130 F condensing temperature MINIMUM MAXIMUM OPERATING CONDITIONS ALL MODELS Min Max Inlet Air Pressure compressed air at inlet to dryer 10 232 psig Min Max Inlet Air Temperature ...

Страница 10: ...RUNNING LAMP R 2 5 CS CR 1 3 6 PTC STARTER F P S FAN MOTOR T ELECTRONIC AUTO DRAIN VALVE OVERLOAD PROTECTOR COMP 1PH S M C Figure 1a 75 scfm models 115V 1PH 60Hz 5 6 ON OFF SWITCH WITH RUNNING LAMP R 2 F P S M S C COMP 1PH OVERLOAD PROTECTOR PTC STARTER FAN MOTOR ELECTRONIC AUTO DRAIN VALVE T ...

Страница 11: ...tor S R COMP 1 C P R b Potential Relay FAN MOTOR Overload protector OLP P R T F P S H P S FUSE FOR AUTO DR SENSOR ELECTRO AUTO DRAIN VALVE FUSE U1 RL1 DSM SOL 21 21 24 3 F1 2A ON OFF SWITCH WITH RUNNING LAMP S R T 0V R 440V T 380V TR 150VA 115V 0V MC1 11 460V 3Ø 60Hz F P S 31 21 24 24 1 2 3 4 5 6 7 o o o o o o o R MC1 REF COMP With internal T P M FAN MOTOR With internal T P ...

Страница 12: ...RYER REFRIGERANT COMPRESSOR CONDENSER FAN BLADES FAN MOTOR AIR FLOW CHILLER REF TO AIR HEAT EXCHANGER REHEATER AIR TO AIR HEAT EXCHANGER COMPRESSED AIR INLET COMPRESSED AIR OUTLET S MOISTURE SEPARATOR INTEGRATED BRAZED PLATE HEAT EXCHANGER ELECTRONIC AUTO DRAIN VALVE WITH TIMER CAPILLARY TUBE HOT GAS BY PASS VALVE F P S ...

Страница 13: ... CONDENSER FAN BLADES FAN MOTOR AIR FLOW CHILLER REF TO AIR HEAT EXCHANGER REHEATER AIR TO AIR HEAT EXCHANGER COMPRESSED AIR INLET COMPRESSED AIR OUTLET S MOISTURE SEPARATOR INTEGRATED BRAZED PLATE HEAT EXCHANGER ELECTRONIC AUTO DRAIN VALVE HIGH PRESSURE SWITCH HOT GAS BY PASS VALVE CAPILLARY TUBE FAN PRESSURE SWITCH H P S F P S ...

Страница 14: ...RNPJMK3 RNPJMK3 RNPJMK3 Item Description 200 scfm 250 scfm 300 scfm 400 scfm 500 scfm 1 Refrigerant Compressor 3161251 3093041 3137014 3090708 3161242 2 Condenser air cooled 3161255 3161255 3161256 3161256 3161245 3 Fan Blades 3041955 3041955 3041957 3041957 3041957 4 Fan Motor 5000011 5000011 5000011 5000011 5000011 5 Filter Dryer 1283273 1283273 1283369 1283369 1283369 6 Solenoid Valve Assembly ...

Страница 15: ...15 ...

Страница 16: ...facturer is the original purchase price of the product or part THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER WRITTEN ORAL OR STATUTORY AND IS EXPRESSLY IN LIEU OF THE IMPLIED WARRANTY OF MERCHANTABILITY AND THE IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE THE MANUFACTURER SHALL NOT BE LIABLE FOR LOSS OR DAMAGE BY REASON OF STRICT LIABILITY IN TORT OR ITS N...

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