GeneralAire GA50A20 User Manual
Page 10
1. With the ohmmeter set on its lowest scale take a
reading between the top center contact of the cell
and the ionizing fingers on the bottom of the cell. You
should have continuity. If you do not then there is a
bad contact between the center contact and the top
set of ionizing fingers.
2. Test the resistance between the top center contact
and the cell frame. You should read infinite
resistance. If not you have a short in the ionizing
section.
3. Take a reading between the two outside contacts on
the top of the cell. You should have continuity. If you
do not then there is a bad contact between one of the
contacts to the live cell plate. Test each top outside
contact to the last plate in the cell to determine which
contact is not mating properly.
4. Test the resistance between the outside contacts and
the cell frame. You should read infinite resistance. If
not you have a short in the collecting section.
5. If you have a bad contact adjust the internal contacts
within the cell until contact is made.
Removing Power Box
1. Turn the main system switch OFF or disconnect the
power cord.
2. Remove the power box cover.
3. If the unit does not have a cord disconnect the
source wires to the Air Cleaner. Cap off the wires so
the system can still be operated.
4. Remove the two nuts holding the power box to the
cabinet.
5. Slide the power box forward then up to remove it
from the cabinet.
6. If you are removing the power box for any length of
time tape a cover over the top opening to prevent air
from entering into the system.
Replacing A Tungsten Ionizing Wire
Replacement wires are cut to the correct length and
have eyelets at each end for easy replacement.
1. Turn OFF power to Air Cleaner.
2. Remove cell from Air Cleaner.
3. Remove all parts of broken wire from the cell. If
necessary, the cell may be used temporarily with one
wire missing until a replacement is received.
4. Place one end of the loop over the finger at the
bottom of the cell.
5. Using needle-nose pliers, grip the other end of wire,
near the bottom of the top loop. Pull the wire up
toward the top finger. As you apply tension, the
bottom finger will give, allowing the placement of the
loop around the top finger.
6. Install cell in Air Cleaner.
7. Return power to Air Cleaner.
8. Test cell for proper operation.
10
Fig. 7
— Exploded View
Use Part Numbers When Ordering (See next page)
#
Part Description
1
On/Off Switch
2
Safety Interlock Switch
3
Performance Indicator Light (Green LED)
4
Air Proving Switch
5
24 Volt Transformer
6
Power Board
7
Fibreboard (with 4 Copper Contacts)
8
Copper Contact
9
Cord Assembly (Optional)
10
Cover for Power Box
11
Power Box Complete (No Cover)
12
Carbon Filters (Set of 3)
13
Prefilter
14
Cell Guide (Plastic)
15
Collecting Cell
16
Cell Handle
17
Door (with Plastic Clip & Handle)
18
Door Handle (Plastic)
19
Ionizing Wire
20
Male & Female Door Clip Set
21
Door Label (Important… Wait 15 Seconds)
22
Door Label (Cleaning Instructions)
23
Dax Detergent