Jevi EF Series Installation and operating instructions

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it in any form is not permitted without prior written authorisation of the proprietor
IOM -
INSTALLATION, OPERATION AND MAINTENANCE
MANUAL FOR EF.. DUCT HEATERS (HVAC)
For installation in hazardous areas

08099901 1
Safety information .............................................................................................................2
Disclaimer .........................................................................................................................3
List of abbreviations ..........................................................................................................4
1.0 Introduction..................................................................................................................5
2.0 Description of product .................................................................................................5
3.0 Packing .......................................................................................................................7
3.1 Choice of the Packing Type.....................................................................................7
3.2 Wood treatment .....................................................................................................7
3.3 Pallets .....................................................................................................................7
3.4 Handling .................................................................................................................7
3.5 Centre of gravity .....................................................................................................7
3.6 Labelling and tagging of equipment / Identification .............................................7
3.7 Shipping marks / labelling ......................................................................................7
4.0 Transportation.............................................................................................................8
4.1 HVAC.......................................................................................................................8
5.0 Storage and preservation............................................................................................9
5.1 Preservation during the transportation and pre-installation period ...........................9
5.2 Preservation during the installation/construction period ...........................................9
5.3 Suggestion for preservation specification & record: ...............................................11
6.0 Installation instructions..............................................................................................12
6.1 General ..................................................................................................................12
6.2 Special conditions for safe use...............................................................................12
6.3 Heater Installation ..................................................................................................12
6.4 Adjusting Thermal couple / RTD, TSH thermal switch with auto reset ...................13
6.5 Adjusting TSHH thermal cut-off (Thermal couple / RTD)........................................13
7.0 Start up......................................................................................................................14
7.1 Before energizing the heating elements.................................................................14
7.2 Shutting down the heater........................................................................................14
8.0 Operating instructions ...............................................................................................15
9.0 Maintenance instructions...........................................................................................16
9.1 Maintenance and service plan................................................................................17
10.0 Trouble shooting......................................................................................................18
11.0 Disposal instructions ...............................................................................................19
Notes:..............................................................................................................................20

08099901 2
Safety information
In order to secure your personal safety, as well as prevent damages to property, this
manual contains notices you have to observe. The notices referring to your personal safety
DANGER
Indicates that death or severepersonal injury will result if proper
precautions are not taken
WARNING
With a safety alert symbol, indicates that minor personal injury
can result if proper precautions are not taken
CAUTION
Without a safety alert symbol, indicates that property damage
can result if proper precautions are not taken
NOTICE
Indicates that an unintended result or situation can occur if the
corresponding information is not considered
If more than one degree of danger is present, the warning notice representing the highest degree of danger
will be used. A notice warning of injury to persons with a safety symbol may also include a warning relating
to property damage.
Qualified Personnel
Only personnel qualified for the specific task in accordance with the relevant
documentation for the specific task, in particular its warning notices and safety instructions
may operate the product described in this documentation. Qualified personnel are those
who, based on their training and experience, can identify risks and avoiding potential
hazards when working with these products/systems.
Proper use of JEVI products
WARNING
Proper transport, storage, installation, assembly,
commissioning, operation and maintenance is required to
ensure that the product operates safely and without any
problems. The permissible ambient conditions must be
adhered too. Observe the information in the relevant
documentation.

08099901 3
Disclaimer
JEVI A/S assumes no responsibility for any additions placed by the customer that can
inflict our product. Additions or alterations implemented by the customer are not covered
by our warranty.
IMPORTANT: These instructions should be read thoroughly before installation and
operation. All warnings and precautions should be observed for both personal safety and
for proper equipment performance and longevity. Failure to follow these instructions could
result in equipment failure and/or serious injury to personnel.
NB! THIS IOM IS A STANDARD DOCUMENT AND IS NOT PROJECT SPECIFIC.
The English IOM is JEVI’s standard version

08099901 4
List of abbreviations
ACBR - Air Cooled Braking Resistor
CoG - Centre of Gravity
EF…- Electrical Duct heater
GA - General Arrangement (Drawing)
HVAC - Heating, ventilation, Air Conditioning
IOM - Installation, Operating and Maintenance Manual
JB - Junction Box
VLE - Fan heater with integrated controls for temperature control
VLEx - Fan heater for explosive areas
WCBR - Water Cooled Braking Resistor
TSH - Temperature Switch High
TSHH -Temperature Switch High High

08099901 5
1.0 Introduction
This manual is valid for variated models of HVAC designed for explosive areas.
The purpose of this document is to introduce a reader to installation, operation and
maintenance procedure and most importantly to general safety precautions, which are not
necessarily related to any specific part or procedure, and do not necessarily, appear
elsewhere in the publication. These precautions must be thoroughly understood and
applied to in all phases of operation and maintenance.
Descriptions in this manual are generic and are not project specific Pictures may show
other equipment and options than in the actual project.

08099901 6
2.0 Description of product
The duct heater is designed for heating of air.
Reference should be made to the general drawing of this item for the intended use:
Drawing no. : Refer to equipment drawing GA
Electric supply : See electrical diagram
Voltage : See electrical diagram
Ref. number : Same as order number and item number
The heater consists of an enclosure (IP rating according to GA and/or Datasheet).
Containing:
Certified electric heating elements (Ex e II) max load of 1,3 W/cm².
A protective device with manual reset (TSHH) Ex de IIC Gb. Optional, protective device
with auto reset (TSH) Ex de IIC Gb Alternative protective device, TSHH, thermocouple
sensor type K connected to certified transmitter, Ex ia IIC T4...T6 Ga end user applies
barrier, reset must be done by hand. Temperature sensors are placed at the highest
temperature areas of the heating bundle. In case of no airflow the TSHH will cut off the
heater.
Optionally the certified equipment mentioned below may be fitted into the junction box.
A certified Ex ia IIC T4 temperature transmitter.
A certified Ex d IIC T5 anti-condensation heater.
A certified Ex de IIC T6 or Ex d IIC T6 or Ex e IIC T6 control device.
Marking hazardous area certification:
ATEX: II 2G Ex e IIC T3 Gb IECEx: Ex e IIC T3 Gb
II 2G Ex e [ia] IIC T3 Gb Ex e [ia] IIC T3 Gb
Standards :
ATEX: IECEx:
EN 60079-0 IEC 60079-0
EN 60079-7 IEC 60079-7
EN 60079-11 IEC 60079-11
EN 60079-14 IEC 60079-14
IECEx group and category: Ex II 2 G
Certificate number: IECEx TUN 13.0036X
ATEX group and category: Ex II 2 G
Certificate number: TÜV 13 ATEX 131672X

08099901 7
3.0 Packing
All packing is in accordance to the specific requirements of the individual purchase order
or contract as well as to the regulations of the country of destination.
3.1 Choice of the Packing Type
The choice of the packing type and the requirement of particular protections depend on
characteristics of the equipment and material to be packed, its handling requirements
and kind of transport chosen.
The packing provides both mechanical and environmental protection.
3.2 Wood treatment
All solid wood,used for packing (including wooden pallets) is treated (heat treatment or
fumigation) according to the international standard ISPM 15 (IPPC),latest revision.
As these rules are not the same for all countries, the procedure is to meet the demands of
a country of final destination.
3.3 Pallets
Equipment is packed on pallets that provide adequate load support during transportation
and storage. The pallets have a dynamic load capacity,enough to carry the mass loaded
on the pallet.
Where feasible the top surface of the pallet must be flat.
The pallet must be tight on all sides with steel or synthetic straps on each side.
Bolts, clamps, supporting beams, etc. will properly fix all equipment and materials.
Fragile, easily damageable and loose parts will be pertaining to the equipment securely
and properly packed in a separate case.
3.4 Handling
Under no circumstances may the equipment itself be used as a platform for gaining access
to installation and construction areas above. If such access is required then suitable
scaffolding must be established, the equipment may not be used as a support.
3.5 Centre of gravity
If required, large and heavy equipment are marked with Centre of Gravity (COG).
3.6 Labelling and tagging of equipment / Identification
If no specific identification is required, (see the Purchase Order for the technical
specifications) the labeling is in accordance to JEVI standard.
On demand the identification label is in accordance with the final packing list/delivery
note.
3.7 Shipping marks / labelling
All packages are marked or labelled in accordance with the data shown
in the packing list/delivery note

08099901 8
4.0 Transportation
The product is packed according to agreement, with indication of CoG if required by
customer.
The product is packed on pallets. The packing is easily moved either by forklift or by use
of crane, handled by authorised personnel.
For lifting lugs, see GA
For weight, see GA or rating plate
For COG - if any, see GA
CAUTION
Heating elements must NOT be used for lifting, this causes
damage on the elements
4.1 HVAC
All Heaters and inserts weighing > 25kg are supplied with lifting devices.
Lifting lugs

08099901 9
5.0 Storage and preservation
The purpose of this chapter is to specify how to handle and preserve a product from the
day of shipment until the equipment is installed and commissioned.
Following conditions shall be observed for the installation/construction period.
CAUTION
During storage, prior to installation the unit must be stored
dry with a relative humidity <60 %, temperature >15ºC.
CAUTION
Replace desiccant bag in junction boxes and enclosures (if
any) every 6 months.
Keep a log of the replacements as documentation.
CAUTION
The Anti condensation heater, if any, must be powered up
and connected at all time.
5.1 Preservation during the transportation and pre-installation period
The packaging provides both mechanical and environmental protection. If the equipment
is intended for service in an outdoor environment, to avoid any risk of harmful metallic dust
during storage it is protected with enveloping plastic foil.
All openings such as cable entry holes are adequately sealed.
Packages must not be opened, or their integrity disturbed during the transport.
Packing may only be opened when the equipment has been taken from storage and has
been transported to its intended location of installation, or to connect the anti-condensation
heater, after which the packing must be resealed. Storage preservation measures are
immediately invalidated as soon as the packaging is disturbed.
One shall inspect packages on receipt at the storage warehouse and at regular monthly
intervals during the storage period in regard to external damages. Any visible damage that
may have a consequence to the condition of the contents or integrity of the preservation
must be immediately documented and reported. In case of such an event, the supplier
must be contacted immediately for advice
5.2 Preservation during the installation/construction period
The product must be unpacked only when the equipment is to be installed, or to connect
the anti-condensation heater. It is recommended to maintain the integrity of the packaging
during transport from the storage warehouse to the installation site.
Inspect the equipment within each package for damage and condition as soon as the
package is opened. Report and document any damage immediately. In case of such an
event, the supplier must be contacted immediately for advice.
Installation and handling of the equipment once unpacked must be performed in
accordance with the relevant elements of the documentation for the equipment delivered.

08099901 10
Damages caused by bad workmanship or failure to adhere to the installation instructions
are not covered by the equipment warranty.
If the equipment is installed in an area where ongoing construction work of a nature that
causes airborne pollution or other adverse conditions take place, the equipment must be
suitably protected.Under no circumstances can the equipment be placed in the vicinity of
any activity, which involves grinding, welding, painting, fireproofing, spraying, etc. without
taking necessary precautions to protect it.
When cable termination is completed, a fresh desiccant bag must be placed in the
enclosure. The desiccant bag must be replaced every 6 month or until commissioning, has
been initiated.
All openings such as cable entry holes must be adequately sealed until the interfacing
cables or pipes are installed.
During installation, always keep the equipment in a clean condition. Remove debris from
cable installation activities at once. Take precautions to avoid any small pieces of a
conductive nature from being left in the termination enclosures.
Under no circumstances may the equipment itself be used as a platform for gaining access
to installation and construction areas above. If such access is required then suitable
scaffolding must be established, the equipment may not be used as a support.
During installation the equipment must be thoroughly inspected at regular weekly intervals
with regards to external damages, cleanliness and internal condition. Report and
document immediately if any visible damage or adverse condition occurs. In case of such
an event, the supplier must be contacted immediately for advice.
On completion of the installation work the condition of the equipment must be inspected.
Report and document any damage immediately if any visible damage. In case of such an
event, the supplier must be contacted immediately for advice.
CAUTION
It is extremely important that no debris enters the vessel as
this may lead to a blockage of the return, or overflow pipes.

08099901 11
5.3 Suggestion for preservation specification & record:
PRESERVATION SPECIFICATION & RECORD
Record No.:
Tag No.:
Description:
Record page 1 of 1
Activity
No.:
Intervals
(Months)
Description of
Preservation
Activity
Recommend
ed
Preservative
Initial
Preservation
Date/Sign
Preserved
(2)
Date/Sign
Preserved
(3)
Date/Sign
Preserved
(4)
Date/Sign
Preserved
(5)
1
1
Check that protection
structure is
undamaged.
2
6
The desiccant bag
inside the Junction
boxes replaced.
3
1
Check the storage
conditions.
Relative humidity < =
60 %, temp. > =
15˚C
4
12
If stored for more
than one year from
packing date, then
the supplier must be
contacted for advice
regarding renewal of
the desiccant bag.
5
12
Check the paintwork.
6
12
Check that there are
no visual damages to
the equipment.
7
12
Verify that the
general condition of
the equipment is
satisfactory.
8
12
All openings such as
cable entry holes are
adequately sealed.
Junction Boxes as
well.
9
12
All loose
items/removed parts
preserved, stored
and marked.
10
6
Verify no water
leakages,
condensation or
moisture where
applicable.
11
6
The Anti-
condensation heater
in the equipment
must be powered up
and connected at all
times.
Comments:
Performed by:
Date/Sign:
Accepted by:
Date/Sign:
Note: These procedures are considered normal maintenance and are performed at the
owner’s expense.
* Depending on the environment, inspection frequency can vary.

08099901 12
6.0 Installation instructions
6.1 General
The user must ensure that his employees are fully trained and supervised in the proper
working procedures in order to ensure their safety. The plant must be maintained in a safe
condition.
Ensure that the equipment is correctly installed in a suitable location by technically qualified
personnel.
Installation has to meet the requirements of EN/IEC 60079-0,
EN/IEC 60079-7, EN/IEC 60079-14 or equal valid standards.
6.2 Special conditions for safe use
•Only suitable certified cable glands may be used
•Heating elements may be rated up to 1,3 W/cm²
•Safety device TSHH must be permanently set at max 130°C in order to maintain T3
•Titanium heating elements may be used only when protected against impact.
•Ambient temperatures are: -25°C to +75°C
•End-user must ensure compliance between intrinsically safe parameters
6.3 Heater Installation
Before unpacking the equipment ensure that all items are available and that all crates / or
packages are in good condition and undamaged. Any damages must be reported to the
site manager and subsequently to JEVI A/S.
After removing the packing material, check all items for damage. If any damages: report
this to the site manager and subsequently to JEVI A/S.
For installation mounting and sealing materials have to be used which are suitable for the
medium to be heated and the prevailing temperatures that will occur. Please refer to the
GA-drawing for precise data and indications of fitting positions.
1. Open the junction box.
2. Connect the electric power cables to the terminals or bus bar system as indicated on
the electrical diagram and connect the earthing provisions on the mounting plate.
3. Connect the protective conductor to the earthing terminal.
4. Follow the instructions that have been provided by the supplier of the cable glands if
these are present and/or applicable.
5. Close the cover.
WARNING
Do not open the junction box when energized.

08099901 13
NOTICE
- During non-operation the unit must be stored dry. Relative
humidity <60%, temperature >15°C.
- If applicable connect and switch on the space heater.
- When dismantled it is advisable to place a desiccant bag
inside the junction box
6.4 Adjusting Thermal couple / RTD, TSH thermal switch with auto reset
The TSH is adjusted to 80% of maximum.
If an adjustment is needed, then load the heater with maximum power and the lowest
airflow according to specification.
Set the TSH on maximum temperature.
Wait until airflow and temperature is constant.
Adjust the temperature scale down on the TSH step by step with app 10°C at the time;
wait to see if TSH switches off for 10 min. adjust again 10°C continue this procedure until
TSH cuts off the heater.
Adjust the TSH scale up with10°C and add the difference between the inlet
Test the heater with full load and switch off airflow. TSH must switch off before maximum
allowed temperature for heater is reached.
The mechanical TSHH is nonadjustable.
Eg.
Inlet temperature according to datasheet/heater specification: 10°C
The TSH cuts off at inlet temperature of 5°C. Adjust the TSH 15°C (inlet temperature 10°C
plus difference between test inlet temperature and spec. inlet temperature)
6.5 Adjusting TSHH thermal cut-off (Thermal couple / RTD)
Adjusting TSHH thermal cut-off (Thermal couple / RTD) has been done by JEVI if the
transmitter is mounted in the heater.
The max temperature must be set according to the wiring diagram, and the IOM for the
transmitter.
This TSHH thermal cut-off (Thermal couple / RTD) must be with manual reset.

08099901 14
7.0 Start up
Remove desiccant bag from JB before starting up
Before the initial start-up of the heater the following will have to be checked:
1. The heater has been correctly installed as described in the GA drawing and if
necessary, a leakage test has been performed.
2. The protective conductor (PE) has been connected and, if necessary, the external
connection between housing and ground has been effected, e.g. for avoiding
electrostatic discharging.
3. The earthing connection has been effected and properly secured.
4. The electrical connections have been performed in accordance with the relevant
regulations and wiring diagram.
5. The heater has been properly installed and all studs and nuts are
properly tightened.
6. All electrical connections between control panel and heater are correctly installed e.g.
power cable, temperature transmitter.
7.1 Before energizing the heating elements
1. Check the supply voltage.
Check the control voltage.
Voltages are specified on the wiring diagrams of this equipment.
2. Check whether the monitoring system has been actuated e.g. ‘Overheat Protection’.
(thermostat, thermocouple sensor fixed to an element sheath).
7.2 Shutting down the heater.
De-energize the heater before shutting down the flow.

08099901 15
8.0 Operating instructions
Before initial start-up of the heater it should be checked whether:
1. The heater is properly installed and, if necessary, a leakage test must be conducted.
2. The electrical connection is performed in accordance with the relevant rules and
regulations.
3. The protective conductor (PE) has been connected and, ifnecessary, the external earth
connection between housing and ground has been effected, e.g. for avoiding
electrostatic discharge.
4. Monitoring systems have been actuated e.g., “Flow Monitoring” and “Overheat
Protection”.
5. The medium to be heated, is in accordance with the heater design.
At the cable entries temperatures exceeding 70°C are not admissible.
The minimum temperature rating for all incoming cables is 70°C
NOTICE
Before switching the heater on, check that the rated process
flow is running.
The construction materials used are chosen in accordance
with the operating conditions specified.
Should the heater be operated with other media or
temperatures than those specified, warranty expires
immediately.

08099901 16
9.0 Maintenance instructions
The one-year service interval only applies if the heater is installed in a dry and clean
environment. If installed in environment which does not meet these requirements, the
service intervals might have to be reduced.
The responsible for the maintenance must ensure that his employees are fully trained and
supervised in the proper working procedures to ensure their safety.
1. Check the ceramic insulators on the elements for damage.
2. Check the insulation resistance of the heating elements.
Connect the Megger to an earth bolt and one of the phases U1, V1 or W1. If the
measured value is less than 2 Mega ohms, each heating element will have to be
checked separately. Minimum value is 10 Mega ohms at 1000 volts.
*The Ex certificate together with the IOM is documentation and as soon as equipment is
ATEX and/or IECEx-marked and certified, shall the manufacturer always be contacted
before any repair jobs are planned to get the correct instruction or approval to make the
repair job.
If this is not followed, the certification will be voided.
*Text also references to page 18

08099901 17
9.1 Maintenance and service plan
Check or clean
Spare/replacements parts
System
Item
Periodic maintenance interval
Weekly
(first 4
weeks)
Every 6
months
Every 12
months
Every 36
months
Whole
Visual inspection
the exterior
Tightening all major
bolts and nuts
Change desiccant
bag in the storage
period
Cleaning interior
and exterior with
compressed air
Electrical
system
Measurement of
Ohm values
according to test
record (max
deviation 10%)
Checking the wiring
connections
Measurement of
voltage on
condense heater
Measurement of
insulation
resistance <3 m
Ohm at 1000 VDC
Note: These procedures are considered normal maintenance and are performed at the
owner’s expense.
* Depending on the environment, inspection frequency can vary.

08099901 18
10.0 Trouble shooting
Disconnect all power sources prior to any inspection, service, or cleaning. Hazard for
electric shock exists while the equipment is connected.
For maintenance requiring repair or replacement of components, contact the factory
immediately for further instruction. Only the failures within the scope of normal
maintenance are listed below. If a problem is not listed or it is not eliminated by listed
corrective measures, immediately contact JEVI A/S for assistance.
Problem
Possible cause
Possible correction
Heater/Resistor failure
Loose bus bar
Heater/Resistor
element burned out
Tighten failed resistor bank.
Disconnect element and
use spare
Temperature switch
trip
Heater/Resistor over
temperature
Ensure air intake and
exhaust are clear of foreign
particles or blockage.
Check fan operation
Pressure differential
trip
Loose connections.
Intake obstruction
Check all connections.
Remove and clean.
*See text on page 16

08099901 19
11.0 Disposal instructions
Equipment containing electrical components shall not be disposed together with domestic
waste. Collect separately with other electrical and electronic waste, according to local
legislation.