Honeywell F50F - Manual (Page 7)

5 69-1162M
F50F
Replacing the Cell and Prefilter
〈 Before replacing the cell it should be visually examined for bent or damaged collector plates or broken ioniser
wires. Bent or warped plates can be formed back into shape. This should be done to prevent the arcing sound
which is caused by the plates being too close together.
Do NOT use cells until broken ioniser wires are removed. If the broken wire is in the middle of the cell, replace
with one of the wires from either end. This will ensure the cell operates at reasonably high efficiency until a
replacement is obtained from your installer or service dealer.
〈 When replacing the cell in the air cleaner make sure the airflow arrow on the cell is pointing downstream and the
handle faces outward. The cell is keyed
to prevent it being wrongly inserted. DO NOT USE EXCESSIVE
FORCE if resistance is encountered.
〈 Slide the prefilter into the upstream prefilter guides.
〈 Replace the access door and close firmly.
SERVICE CHECKS
Some faults can be checked without the need to call your service dealer.
〈 If the snapping sound (arcing) occurs too frequently....The cell may be wet from washing. Turn the air cleaner off
for two hours to dry. Check the cell for broken ioniser wires or bent collector plates.
〈 If the air cleaner switch is on but the light is not!...Check the system fan is ON. The airflow switch keeps the air
cleaner OFF when there is no air passing through the duct.
If you have a Performance Indicator and...
〈 The system ON LED does not come on....Check the system fan is on when the air cleaner is running.
〈 The CHECK LED comes on....Ensure that the cell is clean and dry. Check for damaged or shorted ioniser wires.
〈 The WASH LED comes on....Check that the cell is properly located in the air cleaner. Wash the cell and prefilter.
Wipe the ioniser wires to remove any remaining deposits.
〈 -If you smell ozone it could be because the cell is new. The small amount of ozone produced when the air
cleaner is running may be higher than usual during the first week or two of operation, until the cell is ‘burned in’.
Normal use and the first cleaning usually takes away this smell. If, however, the smell of ozone remains objec-
tionable ask your installer or dealer to do one of two things to remedy the situation.
-Adjust the air cleaner power supply
to reduce ozone production. Note that this will reduce ozone production
about 25% but will also reduce cleaning efficiency by 5-15 % depending on the airflow in the duct.
-Install an activated carbon filter downstream of the air cleaner.