EN
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2.00.390C - 1 User’s Manual
D Ü P E R T H A L S i c h e r h e i t s t e c h n i k G m b H & C o . K G
Frankenstr. 3
63791 Karlstein, Germany
Version March 2022
5 Troubleshooting
In the course of using the appliance, malfunctions may occur. The table
below is meant to help troubleshoot and correct malfunctions. If a mal
-
function cannot be traced to one of the possible causes or the correc-
tion given does not solve the issue, then use of the appliance has to be
discontinued and it has to be returned for inspection and repair.
Malfunction
Possible Cause
Verification of Cause
Correction of Malfunction
Appliance does not
run
On/Off Switch
Power Supply
Cord
Overvoltage
Switch
Power Socket at
the Back (Cool-
Line cabinet)
· Is the appliance switched on at the On/Off
switch?
· Is the power supply cord damaged?
· Is the power supply cord properly
connected?
· Are the fuses inside the appliance o.k.?
· Is a device connected that may consume
current at more than 5 A?
· Switch the appliance on at the On/Off
switch.
· Replace the supply cord with a new one.
· Connect the supply cord to the intended
socket.
· Replace the fuses (2 x 1.25 A slow blow).
· Disconnect this device from the socket
and check the fuses and replace them as
needed (2 x 5 A slow blow).
Fan runs, but display
screen does not work
Display Electrics/
Electronics
· Malfunction cannot be corrected by user.
· Return the appliance to the manufacturer/
seller for inspection/repair.
Display screen works,
but fan does not run
Fan Speed
Setting
· Is the fan speed set to level 0?
· Set the fan speed to a higher level (see
Sect. 3.2.5).
Power Supply Error
(E1) shows on screen
Possible Cause, Verification, and Correction as under “Appliance does not run” above.
Exhaust Airflow Error
(E2) shows on screen
Inlet or Outlet
Hose
Differential
Pressure Meter/
Switch
Fan Speed
Setting
Switching
Amplifier
Particulate Filter
Activ'd Carbon F.
Filter Enclosure
Panel
· Is the suction or the extraction hose of the
appliance blocked (airflow restriction) or
very dirty?
· Are the measuring tubes connecting the
sleeve to the meter/switch properly
connected?
· Are the measuring tubes connecting the
sleeve to the meter/switch damaged?
· Are the measuring tubes connecting the
sleeve to the meter/switch connected to
the correct nipples?
· Is the differential pressure meter/switch
properly set?
· Is the spiral hose connected tightly to the
sleeve?
· Is the differential pressure meter/switch
wired properly?
· Is the fan speed set correctly?
· Is a clapping noise heard when the
differential pressure switch cuts in or out?
· Is the particulate filter dirty?
· Is the activated carbon filter dirty?
· Is the panel covering the filter enclosure
open?
· Clean the hose and/or clear the
restriction.
· Connect the measuring and connecting
tubes to both the meter/switch and the
sleeve in the extraction line.
· Replace the measuring and connecting
tubes with new ones.
· Connect the tubes as intended: nipple
closer to the cabinet of the sleeve to
P1 (+) of the meter/switch, nipple closer to
the appliance of the sleeve to P2 (–) of the
meter/switch.
· Open the differential pressure meter/
switch and set it properly (see Sect. 3.4).
· Tightly set the spiral hose onto the sleeve
using the clamp.
· Open the differential pressure meter/
switch and wire it correctly: blue wire to 1,
yellow to 2, red to 3.
· Set the fan speed correctly (see
Sect. 3.2.5).
· Return the appliance to the manufacturer/
seller for inspection/repair.
· Clean and replace the filter as needed.
· Replace the activated carbon filter.
· Close the filter enclosure with the panel.
Despite irregular
extraction airflow no
airflow error (E2) on
screen
Differential
Pressure Meter/
Switch
· Is the differential pressure meter/switch
properly set?
· Open the differential pressure meter/
switch and set it properly (see Sect. 3.4).
Error indicating
absence of filters
shown on screen
Particulate Filter
Activ'd Carbon F.
Micro-switch
· Is the particulate filter installed?
· Is the activated carbon filter installed?
· Are the switching elements of the switch
twisted?
· Install the filter into the enclosure.
· Install the filter into the enclosure.
· Return the appliance to the manufacturer/
seller for inspection/repair.
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Contact Details
Düperthal Sicherheitstechnik GmbH & Co. KG
Frankenstr. 3
Tel.: +49 6188 9139 0
63791 Karlstein, Germany
Fax: +49 6188 9139 121
Web: www.dueperthal.com
E-mail: [email protected]
Info
We reserve the right to change technical specs of the unit
without prior notice.
Summary of Contents for HNA-18 II ATEX F
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