950P
Portable Air Cleaning System
950P
Portable Air Cleaning System
#10065
22
© Intellipure 2015
#10065
23
© Intellipure 2015
Troubleshooting
Troubleshooting
DFS TROUBLESHOOTING GUIDE
Refer to pages 17 and 18 to view figures
Symptom:
The unit has been turned on but the High Voltage Power Supply Indicator Light (DFS) is OFF
Probable cause #1:
Short in High Energy Grid (foreign debris, loose wires, loose electrical connection)
Confirmation:
Step 1: Disconnect power to unit and lock the (2) front wheels to secure the unit.
(fig-1)
Step 2: Remove the Filter Access Door located in the back of the unit using the four butterfly latches
located on the sides of the unit. Lift the latch wings (4) and turn counter-clockwise to open.
(fig-2)
Step 3: Disconnect the High Voltage Lead from the High Energy Grid.
(fig-6)
Step 4: Safely secure the male end of the High Voltage Lead to ensure that the High Voltage Lead cannot
contact the blower wheel.
Step 5:
The following steps should be done with extreme care and the person(s) performing this
test should ensure that unauthorized personnel cannot come in contact with dangerous moving
parts and high voltages.
Defeat Safety Interlock: Ensure the Prefilter is firmly seated. The unit will not run if the Prefilter is not
installed correctly.
Step 6: Return power to the unit and put the unit into run mode. Observe the status of the High Voltage
Power Supply Indicator Light (DFS). If the light is now functioning the problem is in the High
Energy Grid.
Disconnect power to the unit and follow these steps:
(A) Using the Magnetic Bit Holder provided, alternate loosening the left and right Scissor
Locking Mechanisms located near the motor plate in the filter. Make sure the Scissor Locking
Mechanisms are fully opened.
(fig-5)
(B) Ensure the High Voltage Lead is disconnected from the High Energy Grid.
(fig-6)
(C) Using a firm pull, remove the V-Bank Main Filter and High Energy Grid Assembly out of the
filter access opening.
(fig-7)
(D) Separate the High Energy Grid from the V-Bank Main Filter by removing the six screws (4
corners and 2 in the center) in the V-Bank Main Filter.
(fig-8)
(E) Inspect the High Energy Grid and its wires, they should be free from debris and evenly
tensioned. Loose wires can cause arcing or cause the protection circuit to trip.
(F)
Inspect the “V” sections of the V-Bank Main Filter and ensure that it is free of metal debris,
excess dirt or hair
etc…
(G) Secure the V-Bank Main Filter to the High Energy Grid by using the six screws (4 corners
and 2 in the center) in the V-Bank Main Filter.
(H) Stand the V-Bank Main Filter and High Energy Grid Assembly up and inspect the gasket on
the seal side of the Assembly. Replace the gasket if it is damaged
DFS TROUBLESHOOTING GUIDE CONT.
(I) Slide the V-Bank Main Filter and High Energy Grid Assembly back into the unit. Pay attention to
the Flow Direction Arrow on the Prefilter, the arrow should point upwards towards the
Supply/Outlet end of the unit.
(fig-9)
(J) Tighten the right and left Scissor Locking Mechanism.
(K) Repeat Step 5 from above and place the unit in run mode to confirm the problem has been resolved.
Conclusion:
If the High Voltage Power Supply Indicator Light stays off this indicates a faulty Voltage
Multiplier. Disconnect power from the unit and replace the Voltage Multiplier. Repeat Step 5
from above and place the unit in run mode to confirm the problem has been resolved.
Probable Cause #2:
Faulty Voltage Multiplier / Faulty High Voltage Power Supply (DFS)
Confirmation:
Step 1: Disconnect power to unit
Step 2: Open the Electrical Panel located behind the front panel of the unit. You will need to remove the
(14) screws holding the front panel in place.
Step 3: Locate the Voltage Multiplier above the electrical components on the left side. The Voltage
Multiplier is a gray, rectangular device with red and black wires at one end and a single red wire
at the opposite end.
(fig-11)
Step 4: Disconnect the red wire of the Voltage Multiplier from the “J3” terminal of the High Voltage
Power Supply (HVPS).
Stay clear of this terminal while testing and Do Not attempt to
re-connect the terminal with power applied to the unit.
Step 5: Re-connect power to the unit
Step 6: Place the unit in “run” mode and observe the status of the High Voltage Power Supply Indicator
Light (HVPS1)
Conclusion:
If the High Voltage Power Supply Indicator Light stays off with no Voltage Multiplier attached
there is a fault in the High Voltage Power Supply. Disconnect power from the unit and
replace the High Voltage Power Supply.
If the High Voltage Power Supply
indicator light is on with no Voltage Multiplier attached the fault is
either in the High Energy Grid or in the Voltage Multiplier.
Variable Frequency Drive
High Voltage Power
Service should only be done by a qualified factory trained technician.
Voltage Multiplier
fig-11
