Subject to changes in line with technical progress.
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Servicing and maintenance
play the alarm number. The corresponding malfunction can be found in the enclosed Operating Manual / functional
description for the
Art Tech Level II control
.
A control unit (10) is connected. The LED status display (8) lights up red. The
ALARM
button (12) on the control unit
lights up red. The corresponding malfunction can be found in the enclosed Operating Manual / functional description
for the
Art Tech Level II control
.
ATTENTION
The two filters must be changed if the error code displayed indicates a fault message.
Both filters must be changed if the unit has been out of use for more than six months.
In case of heavy contamination, both filters may have to be changed before six months have
passed.
LED status display / INFO button / Display
Action
LED status display (8) on the unit lights up red;
The LED
ALARM
button (12) on the control unit
lights up red;
Display (13) displays an alarm.
Check the exhaust air filter (7) and outdoor air filter (5) for obvious contam
-
ination.
Only replace the filters if obviously contaminated.
Switch the unit back on.
Even if filters have been replaced:
LED status display (8) on the unit lights up red;
The LED
ALARM
button (12) on the control unit
lights up red;
Display (13) displays an alarm.
Check both filters: Correctly fitted in the holder; correct filter installed.
Switch the unit back on.
LED status display (8) on the unit lights up green;
INFO
button LED on the control unit lights up
green;
Display (13) on main page shows
Filter
OK
.
Unit is in operation.
7.3.3.1
Carry out filter change
To replace both filters, proceed as follows:
Step
Action
1
Ensure that an alarm displayed on the control unit (10) indicates the required filter change.
2
Switch off the compact air handling unit (see chapter "6.2.4 Switching off the unit" on page 35).
3
Ensure that the main switch (9) is in the
O OFF
position.
4
Disconnect the unit plug.
5
Route the mains lead so that it does not pose a tripping hazard.
6
Ensure that the unit has cooled down sufficiently and that the fans are completely stationary.
7
Unlock the two turn locks (4) on the right-hand maintenance door (3) of the basic unit (2) with the double-bit key.
8
Open the right-hand maintenance door (3).
9
Take the outdoor air filter (5) out of the guide rail (1).
10
Insert the new outdoor air filter (5) into the guide rail (1) and push it in as far as it will go. Do not apply pressure.
11
Take the exhaust air filter (7) out of the guide rail (6).
12
Insert the new exhaust air filter (7) into the guide rail (6) and push it as far as it will go. Do not apply pressure.
13
Ensure that the two filters have not been switched. Check that both filters are securely fitted.
14
Close the right-hand maintenance door (3). In this case, slight resistance should be felt, which indicates that the seals
attached to the door are resting correctly against the filters.
15
Lock the turn locks (4) using the double bit key.
16
Connect the mains power supply.
17
Switch on the compact air handling unit at the main switch (9),
I ON
; position; it is connected to the power supply. The
settings implemented on the control unit prior to the maintenance work are retained.
18
Pay attention to the status display LED (8) and the
INFO
button LED (11) on the operating panel. Both must light up
green.
19
Ensure that the main page on the display shows
Filter OK
.
