RoboVent FloorSaver Series, Owner'S Manual

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ROBOVENT • DFS SERIES OWNER’S MANUAL
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DFS unit is making excessive noise. Check the following:
1. Check for correct blower rotation, (see “Blower Rotation.”)
2. Make sure the blower wheel is not hitting the venturi.
3. Check that all venturi bolts are securely tightened.
4. Make sure motor bearings are good. (Amperage rating will be higher than normal.)
5. If the noise is an electrical hum in the control panel, it could be a defective motor
starter relay.
6. Blower wheel could be out of balance. If the blower wheel has gone out of balance,
there will be excessive vibration. In this case, please contact the RoboVent Technical
Department at 1-866-ROBOVENT.
Filter Self-Cleaning System (FSS) not operating. Check the following:
1. Verify that the airline is connected to the air tank.
2. Check air tank pressure. The FSS works best when pressurized at 90 – 105 PSI.
3. Check settings of ePad Controller. See Appendix A .
4. Check diaphragm on solenoid valve. If optimized pressure is supplied to the air
tank and the timers are operational then a problem may exist with the solenoid
diaphragm. See Figure 28 of “Solenoid Valve” and order a new diaphragm kit from
RoboVent Service Department.
Little or no suction across intake plenum. Check the following:
1. Check motor rotation. When the unit is powered down note the rotation of the motor
shaft. Motor rotation should be clockwise when viewed from above unit.
2. Cartridge filters are loaded. Check the ePad Controller reading. Any reading of 3.00
kPa or greater signals that the baffles and/or cartridge filters could be loaded. Initiate
a manual cleaning cycle (see “
Appendix A
”) before replacing cartridges.
SECTION 1
1
00
Troubleshooting