Wiring
1. Confirm the power is off prior to wiring. Follow all local and national electrical and building codes.
2. GPS recommends the GPS-FC48 be powered constantly and NOT switched with the system or blower.
3. The GPS-FC48-AC will self-adjust to voltages from 24VAC to 240VAC. Output and performance will not be
effected by choice of input voltage. Connect the power wires as follows:
Black 24 - 240VAC
White Neutral or L2
Green Ground
Brown Dry Contacts/BAS terminals
4. Wire in BAS terminals (optional). The GPS-FC48-AC is equipped with dry contacts that are normally open and
close when the GPS-FC48-AC is on and has no faults. The contacts are rated up to 250VAC and 1A.
Operation
CAUTION!
NEVER TOUCH BRUSHES WHILE OPERATING, SHOCK MAY OCCUR
Once powered and the inline switch is in the on position, the unit initiates an internal check of all systems. If the
autocleaning wiper blade is not in the “home” position, it will move to the home position in series with the airflow.
Cleaning Cycle
The GPS-FC48-AC comes with a preset cleaning cycle designed to clean the brushes every three days. The cleaning pro-
cess may be activated by pushing the test button located on the top of the unit. To change the cycle frequency, press
the cleaning cycle button once. While cleaning is in progress press and hold the cleaning cycle button for 5 seconds.
The LED will start flashing. Pressing the cleaning cycle button again will change the days between cleaning. The number
of flashes indicates the cleaning interval in days (3 flashes=3 days, 5 flashes=5 days).
Troubleshooting
1. Unit will not power up, LED not illuminated:
a. Confirm proper voltage is applied to the correct terminal(s).
a. Try an alternate power source. If using 24v try using 120v or vice versa.
2. Wiper sticks or stops on emitters:
a. Adjust height of emitters: loosen screw at base of emitter gently push or pull emitter to a height where
wiper just contacts emitter. Hold the emitter in place and tighten screw. Verify correct height after
tightening screw.
3. Wiper does not clean/ contact emitters:
a. Adjust height of emitters: loosen screw at base of emitter gently push or pull emitter to a height where
wiper just contacts emitter. Hold the emitter in place and tighten screw. Verify correct height after
tightening screw.
a. If the emitter is worn to the point where there is no adjustment, replacement emitters can be ordered
from GPS. Remove the screw and the emitter base, unplug the emitter from the connector. Plug the new
emitter in, reinstall base, adjust emitter height and tighten screw.
4. If unit does not operate properly after verifying the above instructions please contact GPS for additional
assistance.
!
