Enviro Maintenance Manual 2004
TROUBLE SHOOTING
I.
Exhaust fan does not run.
Reset the system once. Press the reset button in the LV10 J-Box or turn the fan selector switch
to “OFF” and “ON”. Observe the sequence that follows.
1.The fan does not start and there is no indication on remote panel.
a)Check power from the breaker to the RPD10.
b)Check the three wiring connection from the wash panel to the RPW10 panel.
2.The fan does not start but the green normal pilot energizes for 30 seconds goes
out and “Filter removed” pilot energizes.
a)Check wiring between KES filter box LV10 J-box terminals 5 & 4 and the KESF fan motor
starter.
b)Check wiring between the RPD10 or RPW10 remote and the KES-ISH LV10 J-Box
c)Reset the exhaust fan overload in the exhaust fan motor starter on the KESF fan section.
d)Check three phase power to the KESF fan section disconnect.
e)Check if exhaust duct access door is open between the KES filter section and hood.
f)Check that all filters on in place.
g)Check if the prefilter or box filter access door on the KES unit is open
h)Check the Filter Removed pressure switch. The switch must make and close after 30
seconds of operation. Adjust the pressure setting or replace switch.
i)If all the filters are in place check if pressure tips on the end of the pressure switch
manifolds are plugged. There is a pressure tip in front and behind each filter.
j)Measure Exhaust air volume. If low increase fan RPM to within FLA of fan motor
k)Check KESF exhaust fan motor starter coil. Replace or repair.
l)Check KESF fan belts if loose or broken.
m)Check KESF exhaust fan motor. Replace or repair.
3.The exhaust fan runs for 30 seconds then shuts off and one of the Filter
Clogged pilots energizes.
a.Check the wiring from the LV10-J-Box to the pressure switch
b.Check pressure switch operation P1, P2 & P3. These switches should remain open after
30 seconds operation. Calibrate the pressure setting or replaced switch.
c.Check the wiring between the RPD10 or RPW10 panel and the LV10 J-Box.
II.
Low Exhaust Air
1.Exhaust fan is running but exhaust air is low.
a)Check if fan belts are slipping. Tighten if necessary.
b)Check if fusible link fire damper has closed in the KES filter section. Replace fusible link.
c)Check if filters are dirty but have not activated the “Filter Clogged” pilot. Replace dirty
filters.
d)Check for correct fan rotation.
Summary of Contents for KES Enviro
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Page 15: ...Enviro Maintenance Manual 2004 RPD10 Face Plate Figure 19 RPW10 Face Plate Figure 20...
