Geovent Airbox Lite User manual
AIRBOX LITE
pressure guard
Version 1.1 24.04.13
INSTRUCTION MANUAL
www.geovent.com
2
1.0 Use of the Airbox Lite
Airbox Lite is recommended for pressure and ventilation
guard with control device and alarm by Danish Working
Environment Authority rules, up to 2000 Pa. for the pro-
cess ventilation system.
Airbox Lite has built-in pressure switch which can be de-
livered in tree pressure ranges:
- 20 - 300 Pa
- 100 - 1000 Pa
- 500 - 2000 Pa
The alarm function complies with Danish Working En-
vironment Authority requirements for pressure moni-
toring.
Airbox Lite does not provide for:
• Battery Backup
• Siren
• External lamp
• Operation signal to the fan
• Upper pressure limit
• Pressure Control
If these functions are necessary Airbox III or MultiBox III
will be used.
2.0 Installing AirBox Lite
1. Airbox Lite must be installed visible for the operators
of the ventilation system operation.
2. 230V supply is mounted in terminals L and N as illu-
strated in the diagram.
Note: The supply must NOT be from the same group,
as the monitored ventilation system.
3. The pressure tube is connected from the Airbox Lite
(top outlet - close to the lid) and the ventilation duct.
4. The desired alarm set point is set on the pressure
switch (notch at the center see picture). The recom-
mended setpoint is approximately. 20% below the
operating pressure.
3.0 Function
The pressure switch has a green operation lamp. It will
light up during normal operation of the ventilation sy-
stem.
A red warning lamp will be activated, if the pressure falls
below the set point alarm.
Note: Normally it is not necessary to connect external
siren / lamp, because the built-in alarm lamp is enough.
Should more than one room be monitored, then connect
external siren / light - select Airbox III, where the conne-
ction of additional alarm is possible.
Installation diagram (standard) Pressure tube - connects to the channel
Note: Use stuts close to the lid
230V
supply
Note: Supply from
another group
than the ventilation
system.
Fuse F0,2A
Motor
protection
Switch for help
3
4.0 Liability
Warranty
Geovent A / S will provide guarantee for products, which
are aected by errors or defects coasted by poor work-
manship or materials on Geovent. The guarantee inclu-
des repairing the damage (repair or exchange) up to 1
year after date of transmission. There shall be no claim
against Geovent A / S for loss of earnings or operating
losses as a result of errors in Geovent products.
Wear parts such as pressure hose is not covered by gu-
arantee.
User responsibility
For Geovent to be capable of granting the guarantee,
the installer must have followed this instruction manual
in all respects.
Do not make any changes / design modications the
airbox Lite and on the function of this. Geovent liability
ends due to changes.
Please also refer to current terms and conditions of
www.geovent.dk.
Power supply
Adjustment
screw for setting
the alarm set
point
Connecting the
pressure tube
Protection class: IP 22
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5.0 EU-Declaration of conformity, according to enclosure IIA
HOVEDGADEN 86 • DK-8831 LØGSTRUP
Hereby declares that:
The product: Trykvagt
Models: AirBox Lite
has been manufactured in compliance with the follow-
ing directives and standards:
The directive No 2006/42/EF of 17 May 2006 on ma-
chinery from the European Parliament and the Council
and on changes of directive No 95/16/EF.
EN ISO 14121-1:2007 Risk assessment – part 1
EN ISO 12100-1:2005 Basic concepts and general prin-
ciples for design
EN ISO 12100-1:2009 Construction and design
Part 1: Basic terminology and methodology
EN ISO 12100-2:2005 Basic concepts and general prin-
ciples for design
EN ISO 12100-2:2009 Construction and design
Part 2: Technical principles
Authorised to compile the technical dossier:
Ole Madsen
Date: 24/04-13
Position: Direktør
Name: Thomas Molsen
Signature: ____________________________
