Intertec Data Systems HT-ExVENT User manual

Operating Instructions
Ventilator HT-ExVENT
COM2618411019en-1 • 17/08/2023

www.intertec.info
Page 2 / 7 COM2618411019en-1
INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
1 Use........................................................................................................................................................................... 3
2 Explanation of symbols for warnings and signal words .................................................................................... 3
3 Safety information.................................................................................................................................................. 3
4 Technical Data ........................................................................................................................................................ 3
5 Installation .............................................................................................................................................................. 4
6 Connection.............................................................................................................................................................. 5
7 Commissioning ...................................................................................................................................................... 5
8 Troubleshooting ..................................................................................................................................................... 5
9 Directions for use................................................................................................................................................... 6
10 Deinstallation ......................................................................................................................................................... 6
11 Disposal .................................................................................................................................................................. 6
12 Declaration of conformity...................................................................................................................................... 7
13 Further information and service ........................................................................................................................... 7

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Operating Instructions Ventilator HT-ExVENT
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INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
1 Use
The HT-ExVENT fan is manufactured according to
Directive 2014/34/EU (ATEX) and is used for the
aeration and ventilation of housings. It consists of an
encapsulated shaded polemotor ExVENT in a stainless
steel housing, which is approved for Ex zone 1 of
equipment category G in temperature class T4. Both
sides of the housing are provided with a touch protection
grid.
The type examination certificates CML 22UKEX5657X
with appendices and supplements in English, as well as
the IEC Scheme Certificate IECEx PTZ 18.0012X apply
to the fans.
The type examination certificates CML 22UKEX5656X
with appendices and supplements in English, as well as
the IEC Scheme Certificate IECEx PTB 11.0016X apply
to the motors.
https://www.intertec.info
2 Explanation of symbols for warnings
and signal words
The safety information warns the user about risks and
provide information on how risks can be avoided.
Safety information can be found at the start of the
chapter before the instructions which may lead to a
hazardous situation. Additional safety information can be
found at the beginning of this manual.
Safety instructions which must be adhered to are
highlighted as follows:
DANGER
DANGER
This sign is warning about an extremely hazardous
situation which, if not heeded, will lead to death or
serious irreversible injury.
WARNING
WARNING
This sign is warning about a hazardous situation which,
if not heeded, may lead to death or serious irreversible
injury.
CAUTION
NOTICE
This sign is warning about a hazardous situation which,
if not heeded, may lead to slight, reversible injury.
NOTICE
NOTE
It is essential to pay attention to this safety advice as you
may otherwise incur material damage.
INFO
Important notes and useful additional information.
3 Safety information
CAUTION
Risk of injury
There is a risk of injury on rotating and/or hot
components.
4 Technical Data
Rated voltage max. 230 V AC
Permitted operating voltage max. 250 V AC
Special voltages with corresponding power adjustment
and component selection are possible
Rated current (in
compliance with VDE 0298)
max 10 A
Rated output 25 W
Protection class
IEC EN 60529
IP20
Storage temperature - 60 to + 60°C
Max. permitted operating
ambient temperature
- 40 to + 55°C
Insulation class H
Temperature class T4
Motor ExVENT 30xx L175 PA.
Rated speed 2500 rpm
Air deliveryvolume 300 cbm/h
Installation position optional
Delivery direction O blowing out

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Operating Instructions Ventilator HT-ExVENT
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INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
Delivery direction I blowing in
Connecting cable Silicon tube conductor,
resistant to notching and
oil,
3x 1.5 mm², Ø 8.4 mm
Housing material Stainless steel
Dimensions H x W x D 218 x 218 x 140 mm
INFO
You will find the precise technical data for your
instrument on the label.
Type Ø Blade
Rated output
Rated voltage/Operating voltage
Year of manufacture
Illustration1: Example: HT-ExVENT label
5 Installation
NOTICE
Risk of Damage
When removing from the packaging and during
transport, the connection line must not be stressed or
bent.
Any installation location can be chosen for the fan. The
cut-out is optionally made in the wall or door.
• Cut-out size 190 x 190 mm
• Smooth the edges of the mounting cut-out
• The HT-ExVENT is placed on the inside of the cut-
out
• The clamping lugs can be perceptibly and audibly
clicked into place in all four corners by exerting slight
pressure
• Seal the cut-out circumferentially with silicon from
the inside of the housing
NOTICE
Risk of Damage
The protection class IP20 can only be guaranteed if the
installation position is correct and the seal is not
damaged.
The operating temperatures must be adhered to,
otherwise the thermal safety fuse will be triggered.
The connection line must be permanently installed up to
the inlet in the on-site junction box, taking the
permissible bending radius = 5 x outer diameter into
consideration.
The connection line must be connected in a housing that
complies with the requirements of a recognized type of
protection in accordance with EN 60079-0 section 1 if
the connection is made in a potentially explosive
atmosphere.
The nameplate must always remain easily legible.
Fan propeller L175 Ø175 mm
Fan tubes inside L175 Ø180 mm
Tubes outside Ø183 mm
218 mm
Cut-out size 190 mm
Illustration2: HT-ExVENT front view blowing in

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INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
Air flow blowing in
Illustration3: HT-ExVENT side view blowing in
br=brown bl=blue gn/ye=green/yellow
Ex terminal box
br bl gn/ye
ExVENT 30xx
PA
Illustration4: ExVENT 30xx circuit diagram
6 Connection
INFO
The device may only be connected up and secured by a
trained person, taking into account the "rated voltage"
and "rated current" specified on the nameplate.
A fuse corresponding to its rated voltage (max. 3 x IB
according to lEC 60127-2-1) or a motor protection switch
with short-circuit and thermal instantaneous release
(setting to rated current) must be upstream of each
electric motor. In the case of very low rated currents of
the electric motor, the fuse with the lowest current value
according to the specified IEC-standard is sufficient. The
fuse must be housed in the associated power supply unit
or separately upstream. The fuse rated current must be
the same as or greater than the specified maximum
working voltage of the electric motor. The breaking
capacity of the fuse link must be the same as or greater
than the maximum short-circuit current expected at the
place of installation (normally 1500 A). A connection box
with a melting fuse can be used for example.
Additional equipotential bonding is required. The
terminal block designated for this purpose has the
ground sign.
7 Commissioning
If the electric motor was installed according to the
guidelines specified under section Installation and
section Connection [}Page 5] and it is guaranteed that
no foreign bodies can reach the rotating components,
then the electric motor can be switched on.
A thermal safety fuse is integrated that disconnects the
motor from the mains for reasons of explosion protection
in the event of external heating or blockage. This also
occurs if these installation instructions are not complied
with.
We recommend a thermostat upstream at temperatures
ranging from 40°C.
8 Troubleshooting

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INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
DANGER
Risk of fatal injury from electric current!
If contact is made with live components, there is the risk
of fatal injury.
For this reason, switch off the voltage supply, secure
against being switched on again and check that no more
voltage is present.
INFO
Repairs may only be carried out by the manufacturer
(INTERTEC-Hess) in all cases.
Do not disassemble the device! Opening the units will
render the warranty invalid.
Fault: Remedial action:
Connection
Connection line not
connected properly
Check connection
Mains voltage has a
different frequency than
230-250 V AC 50 Hz
Check mains voltage and
frequency
Fan used for cooling:
Power supply is
interrupted by external
thermostat
Room air is cooler than the
temperature set on the
thermostat
Connecting cable is
damaged
The connecting cable must be
protected mechanically
Fan blade
Foreign bodies in the fan
blade
Remove foreign bodies –
make sure that the fan can
move freely
Blocked fan blade
overheats the motor –
thermal safety fuse is
triggered
Device must be replaced
Auxiliary fan blocked Use spacers to create space
Temperature
Temperature of suction
medium is greater than
+60°C – thermal safety
fuse is triggered
The temperature of the
pumped medium must always
be less than +60°C
Device must be replaced
Fault alarm is triggered Cause: Motor blocked
Device must be replaced
9 Directions for use
To preserve the operational capability and to prevent
unplanned downtimes of the device, please observe the
following measures:
•Bearing/drive shaft:
Both must be kept free of contamination, visual
inspection at 3-month intervals, or at even shorter
intervals if necessary
•Corrosion:
Highly aggressive media must be avoided
•Distance between rotating elements:
The distance of the rotating elements in the axial and
radial direction must not be less than 2 mm from the
fan housing.
10 Deinstallation
Disassembly may only be carried out by a trained
person.
DANGER
Risk of fatal injury from electric current!
If contact is made with live components, there is the risk
of fatal injury.
For this reason, switch off the voltage supply, secure
against being switched on again and check that no more
voltage is present.
Disconnect connection line from the clamps and from the
connection socket, disconnect device from bracket and
remove it.
11 Disposal
Disposal according to UKSI 2013:3113
Disassemble the components of the product, taking the
applicable local labour protection and environmental
regulations into consideration and make sure that the
components are recycled:
• Scrap metal
• Send plastic elements to recycling
• Sort other components according to their material
properties and dispose of them.
Or return your old device to us for professional disposal.
For further information, please contact INTERTEC-Hess
GmbH at [phone].

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Operating Instructions Ventilator HT-ExVENT
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INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
NOTICE
Environmental damage may be caused if
disposed of incorrectly!
Electrical scrap and electronics components are subject
to hazardous waste treatment and must only be
disposed of by certified specialists!
The local community authorities or specialist waste
disposal companies can provide information on
environmentally friendly disposal.
12 Declaration of conformity
The manufacturer, INTERTEC-Hess GmbH,
Raffineriestrasse 8, 93333 Neustadt/Donau, Germany,
hereby declares in sole responsibility that the product
Product / Type designation:
HT-ExVENT
is conform with the following relevant legislation of the
United Kingdom
S.I. 2016 No. 1107
UKSI 2016:1091 (EMC)
UKSI 2013:3113 (WEEE)
UKSI 2012:3032 (RoHS)
and was manufactured according to and complies with
the following standards:
EN 60079-0:2018
EN 60079-18: 2015/AC:2018-09
DIN EN ISO 80079-36:2016-12
DIN EN ISO 80079-37:2016-12
DIN EN 14986:2017-04
DIN EN IEC 63000:2019
Designation:
2503
II 2 G Ex h mb IIB+H2 T4 Gb
CML 22UKEX5657X
Neustadt, Aug. 10th, 2023
Dipl.-Ing. Martin Hess, Managing Director
13 Further information and service
If the information contained in this instruction manual
should not be sufficient in any way, then INTERTEC
would be glad to be at your disposal to provide further
information and service.
Please contact your INTERTEC contact person or
directly contact
INTERTEC-Hess GmbH
Raffineriestr. 8
93333 Neustadt/Donau
Germany
Phone: [phone]
e-mail: [email protected]
Website: www.intertec.info
Warranty
The legally defined warranties and warranty periods of
24 months are applicable to our scope of supply and
services.
You will find more detailed information in the
manufacturer warranty from INTERTEC for heating
systems and accessories.
These instructions do not claim to take all
designs, options or changes into
consideration, even in association with
installation, operation or maintenance.
INTERTEC does not accept responsibility
for providing information about changes
made retrospectively.