sewerin FLIS-EX User manual

24.01.2023 a – 104163 – en
FLIS-EX
Operating Instructions

Suction intake
Canister holder with
bayonet tting for
storing the hose
Motor protection switch
Exhaust opening
Fig. 1: Side view A
Fig. 2: Side view B
FLIS-EX

Nozzle
Clamping coil
Hose clip with lug
Hose (fabric)
Fig. 3: End of hose with bayonet tting
FLIS-EX

Illustration of warnings in this document
AWARNING!
Risk of personal injury. Could result in serious injury or death.

Contents │ I
1 General.....................................................................................1
1.1 Warranty ....................................................................................1
1.2 Purpose .....................................................................................2
1.3 Intended use .............................................................................2
2 Features ...................................................................................3
3 Operation .................................................................................4
3.1 Preparing the device .................................................................4
3.2 Switching the device on ............................................................5
3.3 Switching o󰀨 the device.............................................................6
4 Maintenance and servicing ....................................................7
4.1 Visual inspection .......................................................................7
4.2 Cleaning ....................................................................................7
5 Transport, storage, storing the hose.....................................8
6 Appendix..................................................................................9
6.1 Technical data ...........................................................................9
6.2 Explosion protection ..................................................................9
6.3 Accessories .............................................................................10
6.4 Declaration of conformity .......................................................10
6.5 Inspection protocol ..................................................................11

1 General │ 1
1 General
1.1 Warranty
The following instructions must be complied with in order for
any warranty to be applicable regarding functionality and safe
operation of this equipment.
Hermann Sewerin GmbH accepts no liability for any damages
resulting from non-compliance with these instructions. The
warranty and liability provisions of the terms of sale and delivery
of Hermann Sewerin GmbH are not a󰀨ected by the information
given below.
This product must only be operated after the
relevant operating instructions have been read
and understood.
● This product must only be commissioned by qualied
professionals who are familiar with the legal requirements
(Germany: occupational health and safety regulations of the
BGI (Chemical Employer's Liability Insurance Association)).
● This product must only be used for its intended purpose.
● This product is only suitable for use in industrial and commercial
applications.
●Repairs must only be carried out by a specialist technician or
by other suitably trained personnel.
● Changes or modications to this product must not be carried
out without approval from Hermann Sewerin GmbH. The
manufacturer cannot be held responsible for damages or
the explosion protection of the relevant model if unapproved
modications have been made.
● Only accessories supplied by Hermann Sewerin GmbH may
be used with this product.
● All repairs must be carried out using replacement parts that
have been approved by Hermann Sewerin GmbH.
● The manufacturer reserves the right to make technical
modications in the course of further development.
Generally applicable safety and accident prevention regulations
must be complied with, in addition to the information provided in
this manual.

2 │ 1 General
1.2 Purpose
Large volumes of CO2 can be released in well shafts and
ventilation and purge shafts as a result of pressure drops. High
concentrations of CO2in respiratory air leads to disorientation,
unconsciousness and death.
SEWERIN's FLIS-EX (FLIS for short) helps ventilate and purge
shafts.
1.3 Intended use
The following work can be performed in shafts with the FLIS:
● ventilating (supplying fresh air)
● purging (extracting harmful gases)
Always observe national regulations for the respective application
when using the FLIS. For example, in Germany please observe
the following:
● DGUV (German Social
Accident Insurance Institu-
tion) regulation 113-004
Working in tanks and conned
spaces
● DGUV provision 22 Accident prevention regulation
for wastewater engineering
plants
● DGUV regulation 103-003 Working in enclosed spaces in
wastewater engineering plants
● DGUV regulation 103-002 District heating distribution
plants
● DGUV principle 313-002 Selection, training and commis-
sioning of experts for measuring
pursuant to BGR 117 – part 1,
DGUV principle 313-002
● DGUV regulation 113-001 Explosion protection regulations
(Ex-RL)
The FLIS must not be used in oxygen-enriched atmospheres.
Otherwise the device will not be explosion-proof.

2 Features │ 3
2 Features
The FLIS has been constructed in accordance with the European
explosion protection standard ATEX 100a and complies with the
CENELEC recommendations.
The FLIS contains the following electrical equipment:
Type
EU type examination
certicate
Fan motor EeeA.. 56./.. PTB 03 ATEX 3004
Motor protection
switch
5823/8 DMT 01 ATEX E153 U
Starting/operating
capacitor
27 ... SEV17 ATEX 0165 X
The FLIS comes with:
● suction hose with cage
●extension hose
●extension hose in canister holder
The cage of the suction hose prevents dirt from getting into the
device (e.g. branches, leaves). Extension hoses do not have a
cage.
The hoses are attached to the FLIS using the bayonet tting and
secured with a buttery nut.
Hoses can be connected to each other. Using more than three
hoses can reduce the air volume of the FLIS.

4 │ 3 Operation
3 Operation
The FLIS can both ventilate and purge shafts. Either of the two
options is selected depending on:
● the type and size of the shaft
● the anticipated gases
● the regulations of the responsible German Social Accident
Insurance Institution or other legal stipulations
AWARNING!
Risk of poisoning from toxic gases
Shafts may contain harmful toxic gases.
● When purging, always wait the specied time before
entering the shaft (section 3.2).
● Always measure the gas concentration before entering.
● Always take a gas measuring device into the shaft with
you, so that you can respond immediately if the suction
capacity of the FLIS is no longer su󰀩cient.
● Never switch o󰀨 the FLIS if there is anyone in the shaft.
3.1 Preparing the device
Regardless of how the FLIS will be used (for ventilating or
purging), it is always prepared for use as follows:
1. Place the FLIS at the edge of the shaft.
− The FLIS must be stable and protected against shocks.
− Make sure that coarse dirt does not get into the FLIS de-
vice.
2. Open the inspection cover.
3. Attach the hoses.
− The table below contains information about the connection
options and the ways in which hoses can be combined.
− Tighten the buttery nuts on the nozzle to ensure a secure
mechanical and electrical contact.

3 Operation │ 5
4. Dangle the hoses in the shaft as follows.
− Ventilate: extension hose
− Purge: suction hose
The cage of the suction hose must be inside the shaft.
Connection options
Type of use Suction intake Exhaust opening
Ventilating 1 × 1 ×
or
2 ×
1 × + 1 × 1 ×
no hose 1 ×
or
2 ×
or
1 × + 1 ×
or
2 × + 1 ×
Purging 1 × no hose
or
1 ×
or
2 ×
1 × + 1 × no hose
or
1 ×
1 × + 2 × no hose
Suction hose Extension hose

6 │ 3 Operation
3.2 Switching the device on
Once you have prepared the device (section 3.1), you can start
to use it.
1. Connect the device outside of the explosive area.
− Do this by connecting the FLIS to the power supply. Switch
on the device at the motor protection switch.
The device starts to ventilate or purge the shaft.
2. Wait for at least 6× the air volume before you start to enter
the shaft.
Air volume (calculating the waiting time)
Before entering the shaft, always ensure that harmful gases
are adequately purged or diluted. The respective waiting time
depends on the power of the fan and the volume of the shaft.
Typical fan power
[m³/min]
Waiting time [min]* for 6-times air vol-
ume in a space volume of
3 m³ 10 m³
3.5 5:30 17:30
* Times rounded up
The waiting time for other space volumes is calculated as follows:
Waiting time = 6-times volume of space
fan power
3.3 Switching o󰀨 the device
1. Switch o󰀨 the device at the motor protection switch.
2. Disconnect the device from the power supply.

4 Maintenance and servicing │ 7
4 Maintenance and servicing
The FLIS does not require maintenance. An inspection protocol
is appended for regularly checking the device in accordance with
DIN 60079-17.
4.1 Visual inspection
The FLIS does not have enclosed housing. Therefore, damage
from external inuences are possible.
FLIS
●Check the FLIS for visible outer damage before each use.
● Always inspect the device when it is powerless (disconnect
the mains plug).
● Never use a faulty device.
● Return faulty devices to the manufacturer for repair.
Hoses
● Check the hoses for mechanical damage.
− Hose fabric free from damage?
− Lug of hose clip:
ensures contact with nozzle (clamping coil)?
− Replace the damaged hoses.
4.2 Cleaning
● Always disconnect the mains plug before cleaning.
● Clean with a damp cloth. Dry cloths run the risk of electrostatic
charge on the housing surface.
● Remove signicant contamination immediately.

8 │ 5 Transport, storage, storing the hose
5 Transport, storage, storing the hose
Transport and storage
● Protect the FLIS from mechanical damage during transportation.
Pay attention in particular to the bottom of the device which is
freely accessible.
● Make sure the device is dry when storing.
● Always wind up the connection cable for transport and storage.
Storing the hose
There are two canister holders built into the FLIS for storing the
hoses. The canister holders have a locking bolt on the open side.
● Secure your hoses to make sure they cannot fall out.
− Do this by allowing the bayonet tting on the end of the hose
to engage in the locking bolt.

6 Appendix │ 9
6 Appendix
6.1 Technical data
Model 230 V~ / 50 Hz
Explosion protection yes
Position of use upright
Protection class without the hoses
tted IP23
Protection class with the hose tted
on the suction side IP43
Air volume when the suction hose
is connected with 2 extension hos-
es (each 2.3 m) approx. 3.5 m3/min
Motor output 120 W / 0.7 A
Sound level when hoses are con-
nected 60 dB (A) / 1 m
Weight 19 kg
Dimensions (W × H × D) 50 × 40 × 40 cm
Cable length 20 m
Permitted operating/storage tem-
perature -15 – 40 °C
Permitted moisture 0 – 90 % r.h.
Permitted atmospheric pressure 860 – 1100 hPa
6.2 Explosion protection
The FLIS-EX is classied in explosion protection group II2G IIC
T4 Gb and is suitable for the following atmospheres:
−Methane CH4
− Propane C3H8
−Butane C4H10
− Hydrogen sulphide H2S
−Carbon monoxide CO
− Hydrogen H2
EU type examination certicate: TÜV 05 ATEX 2766 X

10 │ 6 Appendix
6.3 Accessories
Part Order number
Suction hose with cage ZG03-Z0401
Extension hose ZG03-Z0201
Extension hose in canister holder ZG03-81000
6.4 Declaration of conformity
Hermann Sewerin GmbH hereby declares that the FLIS-EX
230 V fulls the requirements of the following guideline:
● 2014/34/EU
Gütersloh, 2016-04-20
Dr S. Sewerin
(Managing Director)
The complete declarations of conformity can be found online.

6 Appendix │ 11
6.5 Inspection protocol
24.01.2023
1.0
1.1
1.2
1.3
1.4
1.5
2.0
3.0
3.1
3.2
3.3
3.4
4.0
4.1
4.2
4.3
Signature
Equipment test according to BGV A2 (VDE0701/0702):
Insulation resistance > 0.5 Mohms / 500V
Sticker with cleaning instructions is present
Resistance of the electrical connection(with connected
hoses):
– Earthing contact – suction hose (< 100 ohms)
– Earthing contact – venting hose (< 100 ohms)
Test of the protective motor switch:
Block fan roller in switched-off state > switch on: Motor must
switch off automatically after max. 16 seconds
Housing in perfect condition
Mains connection line undamaged
FLIS-EX
INSPECTION PROTOCOL
FAB No. (e. g.: 008 01 xxx)
according to DIN EN 60079-17
Place, date
Check identification plates:
Suction hose undamaged
Extension hose undamaged
Butterfly nut at the connecting pieces runs smoothly and
evenly
– FLIS identification plate is present
General functional check
Visual check (to be performed by the user before starting to work)
Close examination (check of the original state)
Detailed check (to be performed by a specialist, e.g. after maintenance)
– Identification plate of protective motor switch is present
– Identification plate present at the valve unit (with explosion
protection marking)
Mains connection line of type H07RN-F3G
Check all modules for firm seating
Put the device into operation > Check suction effect at the
suction hose

Hermann Sewerin GmbH
Robert-Bosch-Straße 3
33334 Gütersloh, Germany
Tel.: [phone]
Fax: [phone]
www.sewerin.com
[email protected]
SEWERIN SARL
17, rue Ampère – BP 211
67727 Hoerdt Cedex, France
Tél. : [phone]
Fax : [phone]
www.sewerin.fr
[email protected]
SEWERIN IBERIA S.L.
Centro de Negocios Eisenhower
Avenida Sur del Aeropuerto
de Barajas 28, Planta 2
28042 Madrid, España
Tel.: [phone]
Fax: [phone]
www.sewerin.com
[email protected]
Sewerin Portugal, Lda
Rua Sr. Dos Milagres, 16, 2º Esq
3800-261 Aveiro, Portugal
Tlf.: [phone]
Fax.: [phone]
www.sewerin.com
[email protected]
Sewerin Sp. z o.o.
ul. Twórcza 79L / 1
03-289 Warszawa, Polska
Tel.: [phone]
Tel. kom.:[phone]
www.sewerin.com
[email protected]
Sewerin Ltd.
Hertfordshire
UK
Phone: [phone]
www.sewerin.co.uk
[email protected]