FScurtis RNP Series, Operator'S Manual

Page: 7 / 16

7
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.