Air King AK5500 Operations Instructions download pdf (Page 10)

CLEANING OR REPLACING THE EVAPORATOR PAD

(Figures 40 a, b, c)

To clean or replace the

evaporator pad follow the steps

below.

NOTE: Do not rotate the drum

assembly by hand this may

cause damage to the gears in

the drum motor.

1. Unplug the transformer (turn

power off to the humidifier).

2. Turn off the water supply at

the saddle valve.

3. Open the humidifier front

Cover (Fig. 40a). The cover is

snap closed on the left hand

side, to release slightly

deflect the front cover flange

at the bottom left and lift up.

In the fully open position the

cover will stay open.

4. Gently remove the drum/evaporator pad assembly at the

bearing end (open end) first. Take care not to lose the bearing

which the drum shaft rides in. Once the bearing side is

removed you will be able to tilt the drum/evaporator pad

assembly out from the motor coupling. (Fig. 40b)

5. Hold the drum assembly in a horizontal position and pull the

bushing out with your fingers (Fig. 40c).

6. Slide the evaporator pad off the drum cage.

7. To replace the pad keep the bushing in the extended position

and slide the evaporator pad over the spokes until it is against

the disc flange.

8. Push the bushing back along the shaft to the stop lugs. The

evaporator pad is now locked into position.

9. Replace the drum/evaporator pad assembly completing step 4

in reverse motor coupling end first.

10. Close the front cover.

11. Turn on the water supply and plug the transformer back in.

CLEANING OR REPLACING THE FLOAT VALVE

ASSEMBLY/COMPONENTS

(Figures 41 a, b, c)

To clean or replace the float valve assembly/components follow

the steps below.

1. Unplug the transformer (turn power off to the humidifier).

2. Turn off the water supply at the saddle valve.

3. Open the humidifier front Cover (Fig. 41a). The cover is snap

closed on the left hand side, to release slightly deflect the front

cover flange at the bottom left and lift up. In the fully open

position the cover will stay open.

4. If you wish to replace the entire float valve assembly included

valve jet shield, disconnect the

water supply from the valve’s

threaded inlet by using an

adjustable wrench to loosen

and remove by hand (Fig. 41b).

5. Loosen the white mounting

nut using an adjustable

wrench and remove by hand.

You can now remove the float

and replace with a new one.

6. Re-attach the components in

reverse order as above.

7. Turn the water back on and

check for and repair any leaks.

8. Plug the transformer back in.

9. To replace or clean selected

components of the float valve

assembly (Fig. 41c), Place your

thumb and forefinger around

the neck of the float.

10. Squeeze firmly. This will disengage the two pivot pins from the

holes at the sides of the valve jet shield and release the float.

11. The valve seat and knob can then be pulled off the spigot.

12. When replacing the valve seat be sure that it is pushed down

as far as it will go onto the float.

13. Clean components or replace with new parts and reassembly

the float.

14. The float valve assembly can be cleaned by using a solution

of 50/50 water and vinegar.

15. Close the front cover.

16. Turn on the water supply and plug the transformer back in.

CLEANING OR REPLACING

THE WATER PAN

(Figures 42 a, b, c)

To clean or replace the water pan

follow the steps below.

1. Unplug the transformer (turn

power off to the humidifier).

2. Turn off the water supply at

the saddle valve.

3. Open the humidifier front

Cover (Fig. 42a). The cover is

snap closed on the left hand

side, to release slightly deflect

the front cover flange at the

bottom left and lift up. In the

fully open position the cover

will stay open.

4. To remove the float from the

jet shield place your thumb

and forefinger around the

Furnace Humidifier

Figure 40

DEFLECT

LEFTHAND

FLANGE OUT

DEFLECT

RIGHTHAND

FLANGE OUT

DRUM EVAPORATOR PAD ASSEMBLY

OPEN

END

FIRST

TILT

ASSEMBLY

OUT

SPOKES

BUSHING

DISK

FLANGE

DRUM

SHAFT

STOP LUGS

PULL OUT

Figure 41

DEFLECT

LEFTHAND

FLANGE OUT

DEFLECT RIGHTHAND

FLANGE OUT

KNOB

SPIGOT

PIVET PIN

VALVE JET

SHIELD

FLOAT

VALVE SEAT

SQUEEZE

HERE (NECK)

Figure 42

DEFLECT

LEFTHAND

FLANGE OUT

DEFLECT RIGHTHAND

FLANGE OUT

DEFLECT

SLIGHTLY

THUMB AND FOREFINGER

SQUEEZE HERE

SIDE PANEL

SLOT

WATER PAN HOOK

DEFLECT

SLIGHTLY

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Air King AK5500 Operations Instructions Page 10

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