CeilAir DX Series Manual do Operador descarregar pdf (Página 52)

(Mar, 2012)

CeilAiR OHS Series Installation, Operation & Maintenance Manual

ir Technology Systems, Inc.

4-8

CAUTION

Failure to replace the cylinder at the end of

cylinder life may result in humidiﬁ er damage.

NOTE

Decrease the humidity setpoint below ambi-

ent humidity to allow the cylinder to cool down

before removing the cylinder.

1. If your unit is equipped with an E² controller, turn

the A/C unit off by pressing (and holding) the

Enter key.

2. Turn off the water supply to the humidiﬁ er.

3. Turn the main power disconnect switch on the

electric box to the Off position. Remove the cover

from the electric box.

4. Fashion a jumper wire and install it across the

terminals on the Air Flow Switch

(F40).

5. Using a pair of vise grips, turn the

shaft of the main power switch to

the On position to provide power

for the humidiﬁ er drain solenoid.

6. Drain the cylinder by pushing

the “On-Off-Drain” switch to the

“Drain” position.

7. After the cylinder has drained, push the “On-Off-

Drain” switch to the “Off” position.

CAUTION

Do not leave the “On-Off-Drain” switch in the

“Drain” position for longer than 10 minutes or

the drain solenoid could burn out.

8. Remove the jumper wire from the Air Flow switch

and turn the main power disconnect switch Off to

disconnect power from the humidiﬁ er.

9. The power wires to the cylinder are attached by

cylinder plugs to the electrode pins on top of the

cylinder. Pull these plugs vertically off the pins.

CAUTION

The cylinder and steam hose may be hot and

burns may result.

10. Loosen the steam hose clamp(s) and pull the

steam hose off vertically.

11. Using a ﬂ athead screwdriver, press the tab on

the cable tie to release it. Lift the cylinder straight

up to disengage it from the humidiﬁ er.

12. Place the new cylinder on the side mounting slots

within the unit, ensuring the cylinder mounting

stubs are seated properly.

13. Replace the cylinder plugs on the pins, ensur-

ing the white sensor plug goes on the single pin,

which is offset from the others.

14. Ensure the plugs are secured on the pins. If

the plugs are loose, they may be temporarily

squeezed together, however, the plugs must

be replaced since a loose plug could generate

enough heat to melt and destroy the plug.

15. Replace the steam hose and tighten the

clamp(s).

16. Push the “On-Off-Drain” switch to the “On” posi-

tion.

17. Replace the cover on the electric box and turn

the main power disconnect switch to the On

position.

18. Turn on the water supply to the humidiﬁ er.

19. If your unit is equipped with an E² controller, turn

the A/C unit On by pressing the Enter key.

20. Readjust the humidity to the desired setpoint.

If the humidiﬁ er is to be shut down for an extended

period, always drain the cylinder ﬁ rst. Follow the

above steps (1 through 8 ensuring the “On-Off-Drain”

switch is in the Off position. Failure to do this will

drastically shorten the cylinder life.

4.3.4.5 Filter Replacement

The ﬁ lters are located either internal or external to

the cabinet depending on the conﬁ guration of the

unit. Regardless of location, the ﬁ lter is accessed

through an access panel, which is labeled “FILTER

ACCESS”. Remove access panel and old ﬁ lter.

Ensuring directional airﬂ ow arrows on ﬁ lter are

correct, insert new ﬁ lter and replace the access

panel.

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