VTS Euroheat DEFENDER 100 WHN Guide

EN Technical documentation
DEFENDER 100-200 WHN
DEFENDER 100-200 EHN
DR-ver.1.9 (07.2014)
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DEFENDER 100-200 WHN
DEFENDER 100-200 EHN

TABLE OF CONTENTS
1. INTRODUCTION
1.1. PRECAUTIONS, REQUIREMENTS, RECOMMENDATIONS
1.2. TRANSPORT
1.3. INITIAL STEPS TAKEN BEFORE THE INSTALLATION
2. STRUCTURE, INTENDED USE, PRINCIPLE OF OPERATION
2.1. INTENDED USE
2.2. PRINCIPLE OF OPERATION
2.3. STRUCTURE (DEFENDER 100-200 WHN, EHN)
2.4. OVERALL DIMENSIONS (DEFENDER 100-200 WHN, EHN)
3. ASSEMBLY
3.1. ASSEMBLY/ DISASSEMBLY OF SIDE COVERS
3.2. ASSEMBLY OF DEVICE
3.2.1. HORIZONTAL ASSEMBLY DIRECTLY ON THE WALL.
3.2.2. HORIZONTAL ASSEMBLY WITH USING INSTALATION HANDLES.
3.2.3. VERTICAL ASSEMBLY DIRECTLY ON THE WALL.
3.2.4. VERTICAL ASSEMBLY WITH USING INSTALATION HANDLES.
3.3. ASSEMBLY AND INSTALLATION GUIDELINES
4. ELEMENTS OF AUTOMATICS
5. START-UP, OPERATION, MAINTENANCE
5.1. START-UP/PUTTING INTO OPERATION
5.2. OPERATION AND MAINTENANCE
6. SERVICING
6.1. PROCEDURE IN CASE OF DEFECTS
6.2. COMPLAINT PROCEDURE
7. INDUSTRIAL SAFETY INSTRUCTION
8. TECHNICAL DATA
8.1. WATER AIR CURTAIN – DEFENDER 100-200 WHN
8.2. ELECTRIC AIR CURTAIN – DEFENDER 100-200 EHN
9. ATTACHMENTS
9.1. ELECTRICAL DIAGRAM OF DEFENDER 100-200 WHN
9.2. ELECTRICAL DIAGRAMS OF DEFENDER 100-200 EHN
9.3. ELECTRICAL DIAGRAMS OF CONNECTION OF DEFENDER 100-200 WHN CONTROL SYSTEM - CONTROL WITH USING A WALLMOUNTED DX CONTROLLER
9.4. ELECTRICAL DIAGRAMS OF CONNECTION OF DEFENDER 100-200 WHN CONTROL SYSTEM - CONTROL WITH USING A WALL-MOUNTED DX CONTROLLER
AND A DOOR SENSOR
9.5. ELECTRICAL DIAGRAMS OF CONNECTION OF DEFENDER 100-200 EHN CONTROL SYSTEM - CONTROL WITH USING A WALLMOUNTED DX CONTROLLER
9.6. ELECTRICAL DIAGRAMS OF CONNECTION OF DEFENDER 100-200 EHN CONTROL SYSTEM - CONTROL WITH USING A WALL-MOUNTED DX CONTROLLER
AND A DOOR SENSOR
10. TECHNICAL INFORMATION TO THE REGULATION (EU) NO 327/2011 IMPLEMENTING DIRECTIVE 2009/125/EC
11. SERVICING
EN:

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DEFENDER 100-200 WHN
DEFENDER 100-200 EHN
1. INTRODUCTION
1.1. PRECAUTIONS, REQUIREMENTS, RECOMMENDATIONS
Detailed analysis of this documentation, as well as assembly and use of equipment, according to the descriptions contained therein, and following all safety requirements, is the basis for the
correct and safe operation of the device. Any other use that contradicts this instruction may cause accidents with serious consequences. Unauthorised personnel should have limited access
to the device, while the personnel should be properly trained. The term operational personnel refers to people, who, as the result of completed training, own experience and knowledge of
important standards, documentation and provisions, concerning safety and working conditions, have been authorised to carry out necessary work and are able to recognise potential hazards
and avoid them. This technical documentation must be delivered together with the device. The documentation contains information concerning all possible congurations of air curtains.
Examples of air curtain assembly and installation, as well as activation, use, repair and maintenance. Provided that the device is operated according to the intended use, this documentation
contains a sufcient number of instructions, required by the qualied personnel. The documentation should be placed near the device and be readily available to the service team. The
manufacturer reserves the right to introduce changes to the instruction, as well as changes to the device that affect its operation, without prior notice. VTS POLSKA Sp. z o.o. shall bear no
responsibility for on-going maintenance, inspections, programming of equipment and damage, caused by standstills of equipment related to the waiting for warranty services, all and any
damage related to the Client’s property, other than the device in question, as well as malfunctions that result from incorrect installation or improper use of the device.
DO NOT COVER
WARNING: To avoid overheating - do not cover the device!
1.2. TRANSPORT
Prior to the installing and taking the device out of the cardboard box, it is required to check whether the cardboard box has not been damaged in any way and/or the adhesive tape (installed
at the company) has not been broken off or cut. It is recommended to check whether the device’s casing has not been damaged in transport. Should any of the above situation occur, please
contact us through telephone or e-mail: Tel. [phone], email: [email protected], fax: [phone].
The device should be transported by two people. Use appropriate tools, when transporting the device, so as to avoid the damaging of goods and potential hazard to health.
1.3. INITIAL STEPS TAKEN BEFORE THE INSTALLATION
Record the serial number of the device in the warranty card, prior to the commencement of the installation process. It is required to properly ll-in the warranty card, after the completion of the
assembly. Prior to the commencing of any installation or maintenance work, it is required to disconnect power supply and protect it against unintentional activation.
2. STRUCTURE, INTENDED USE, PRINCIPLE OF OPERATION
2.1. INTENDED USE
For the convenience of users as well as different types of installations in commercial and industrial facilities we have designed an air curtain in two different options and three sizes:
● a DEFENDER 100 WHN curtain 1.0m wide with a water heater (8-11 kW, 1880 m3/h)
● a DEFENDER 100 EHN curtain 1.0m wide with electric heaters (6 kW, 2150 m3/h)
● a DEFENDER 150 WHN curtain 1.5m wide with a water heater (13- 19,5 kW, 3570 m3/h)
● a DEFENDER 150 EHN curtain 1.5m wide with electric heaters (12 kW, 3500 m3/h)
● a DEFENDER 200 WHN curtain 2.0m wide with a water heater (19- 28 kW, 4890 m3/h)
● a DEFENDER 200 EHN curtain 2.0m wide with electric heaters (13,5 kW, 5000 m3/h)
The use of the DEFENDER 100-200 air curtain enables the leaving of the room door open, regardless of weather conditions, thus providing a protective barrier. The curtain also enables a
simultaneous keeping of the required heating comfort inside the room/facility. The modern design of the DEFENDER 100-200 air curtain is a result of its wide range of application. The places in which
it is possible to install the device include: malls, ofce buildings, supermarkets, cinema compleEHs, as well as shops, store-rooms, manufacturing facilities or warehouse rooms. Please notice that the
use of an air curtain not only provides a protective barrier, but also it is an additional heat source in the room. APPLICATION: warehouse rooms, warehouses, sports facilities,
supermarkets, religious buildings, hotels, clinics, pharmacies, hospitals, ofce buildings, manufacturing facilities. PRIMARY ADVANTAGES: protection of climatic conditions in the room,
reduction of heating/cooling costs, universal size, ability to work both in vertical and horizontal position; simple, quick and intuitive assembly.
2.2. PRINCIPLE OF OPERATION
DEFENDER 100-200 WHN - heating medium, for example hot heating water, returns heat through a heat exchanger with a wide heat-exchange surface, thus providing high heating output (8-
28 kW). A transverse fan (1120-5000 m3/h) sucks in the air in the room, and pumps it through the heat exchanger, back into the room. The jet of warm air is directed downstream at high velocity,
thus providing an air barrier.
DEFENDER 100-200 EHN - electric heaters (2000 and 1500W each) heat up, as a result of the owing of electric current, and return the heat to the air; the air is blown off through the fan, which
sucks in the air in the room. A jet of warm air is directed downstream at high velocity, thus providing an air barrier.
COLD AIR HEATED AIR
2.3. STRUCTURE (DEFENDERA 100-200 WHN, EHN)
DEFENDER 100-200 WHN – WATER AIR
CURTAIN
1. Heat exchanger
2. Control system
3. Transverse fan
4. Casing
5. Outlet grille
6. Assembly jigs
7. Side cover
8. Side cap
DEFENDER 100-200 EHN – ELECTRIC
AIR CURTAIN
1. Electric heaters
2. Control system
3. Transverse fan
4. Casing
5. Outlet grille
6. Assembly jigs
7. Side cover
8. Side cap

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1. WATER HEATER - HEAT EXCHANGER: Maximum parameters of the heating agent for the heat exchanger are : 95°C, 1.6MPa. The aluminium and copper construction consists of copper
pipes of the coil and aluminium lamellae. The connection collectors (male thread ¾``) are located in the upper part of the casing. The optimum water exchanger has been adjusted to operate in
three positions: horizontal and vertical with pins going up or down. Appropriate lead of hydraulic connections makes it possible for the curtain to be assembled directly by the wall as close to the
door frame as possible. The air curtain with a water heater generates power from 8 to 28 kW.
ELECTRIC HEATER: it consists of 1, 2 or 3 sets of heater elements in the amount depending on the option (length) of a particular curtain. Each set consists of three heaters generating in total
the power of 6 and 4,5 kW, powered with 400 V voltage, connected in a star. Due to such technical solutions the heater is capable of generating the rated power ranging from 6kW (for a 1m wide
curtain) to 13,5 kW (for a 2m wide curtain).
2. CONTROL SYSTEM: it is equipped with an outlet on the connection clamp block X0 for DEFENDERA 100-200 WHN and on the X1 block for DEFENDERA 100-200 EHN for connecting an on-
wall controller as well as a valve actuator for DEFENDERA 100-200 WHN.
The system of DEFENDER EHN is equipped with a safety device in the form of a fuse in the 230 V AC circuit.
The algorithm of the system's operation anticipates the function of the fan's delayed switch-off lasting 30 seconds in order to cool the electric heater.
3. HORIZONTAL FAN: the maximum temperature of operation is 90°C, the rated voltage is 230 V/50 Hz. The motor protection level is IP20, F insulation class. The horizontal fan applied in the
device with an advanced prole of blades and impeller geometry made of plastic makes it possible to obtain air capacities up to 5000 m3/h. The control of the electric motor as well as thermal
protections of the winding has been coupled with the control system which resulted in increasing safety of operation. Due to optimum power of the motor the DEFENDER curtain is energy saving
and durable.
4. CASING: Made of high quality plastic material resistant to temperature up to 90°C.
5. INSTALLATION HANDLES: DEFENDER is characterized by simple, quick and aesthetic assembly that can be performed on a wall in both horizontal and vertical position. There are
from 2 to 4 installation handles attached (as an option) to the curtain (depending on the option (length). Connections of electric wires and water channels has been especially designed
not to interfere the general aesthetic values of the device. The name DEFENDER includes devices that are 1, 1.5 and 2 m long that, if necessary, can be additionally joined both
horizontally and vertically to achieve different air supply options: from the left to the right and the opposite. the reach of the air stream is up to 4.0 m.
2.4. OVERALL DIMENSIONS (DEFENEDER 100-200 WHN, EHN)
3. ASSEMBLY
IMPORTANT!
● The place of assembly should be carefully selected, taking into account the occurring of potential loads or vibrations.
● Prior to all installation or maintenance work, disconnect power supply and secure it against unintentional reactivation.
● It is recommended to use lters in the hydraulic system. It is recommended to clean/rinse the system, draining a few litres of water, prior to the connecting of hydraulic conduits (the supply
conduits, in particular).
IMPORTANT!
The air is blown out of the curtain at high velocity, along the surface of the opening, thus creating a protective barrier. Air curtains should cover the entire width of the door opening, in order to
obtain the maximum performance of the curtain.
IT IS RECOMMENDED TO TAKE INTO ACCOUNT THE FOLLOWING PARAMETERS, WHEN ASSEMBLING THE CURTAIN:
The width of the door frame should be less or equal to the width of the supplied air stream, a single DEFENDER 100-200 100-200 unit – its door can be 1, 1.5 or 2m wide.
WRONG CORRECT

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DEFENDER 100-200 WHN
DEFENDER 100-200 EHN
The range of the air jet - assembly height
- horizontal installation - vertical installation
height of assembly [m] fan speed width of the door [m] fan speed
2,5 1 2,5 1
3,0 2 3,0 2
4,0 3 4,0 3
5-7 m/s*
2,2 m/s* 2,3 m/s* 2,3 m/s*
7-9 m/s*
9,6-11 m/s*
4,0m
5-7 m/s* 2,2 m/s*
2,3 m/s*
2,3 m/s*
7-9 m/s* 9,6-11 m/s*
4,0
IMPORTANT! The heating output should be adjusted to the temperature inside the room, as well as the strength and direction of the wind outside. The primary criterion for the regulation of the
heating power is the temperature inside the room, near the door. Should a room thermostat be used, DEFENDER 100-200 activates the heating mode, depending on the temperature settings.
IMPORTANT! Please consider additional factors that affect device operation.
Factors that have a negative effect on curtain operation Factors that have a positive effect on curtain operation
doors or windows that are constantly open in the room, thus creating a draft presence of awning, roofs etc. on the outer side of the door
constant and open access to staircases, available through the room, the chimney draft
effect use of revolving doors
3.1. ASSEMBLY/ DISASSEMBLY OF SIDE COVERS
In order to remove the side cover you should carefully level the catches located on the back wall with the use of a screwdriver and pull it away. Having installed the device and connected it to
the electric supply put the cover back by clicking it on the catches.
3.2. ASSEMBLY OF DEVICE
The unit can be assembled directly or with using installation handles (available in option) on any base construction providing stable and rm support.
3.2.1. HORIZONTAL ASSEMBLY DIRECTLY ON THE WALL.
For mounting DEFENDER directly to the wall use the top holes (1) on the back of the unit. Fixing screws Ø6 mm thick (not included) should have head diameter of not more than 14mm.
O15
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IMPORTANT! The minimum distance between the unit and the ceiling should be 0.3m.

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3.2.2. HORIZONTAL ASSEMBLY WITH USING INSTALATION HANDLES.
It is possible to assemble DEFENDER 100-200 do the wall horizontally in two options:
OPTION I: Assembling handles with their arms faced downwards. In this option you should rst screw the installation handles to the
wall (1) and then at regular intervals (for a 1m curtain it is 2 installation hanles every 700mm, for 1.5m – three, 2m - four installation
handles every 600mm) so that the handles' arms are levelled.
Then slide 2 (DR -1m), 3 (DR-1.5m) or 4 (DR-2m) assembly screws (2) M10x20 in each of the two guide bars. Lift the curtain with
the screw faced upwards and assemble them in the handles. Put backing straps (3), tighten the nuts (4) and close the handle's
covers (5).
ATTENTION! The minimum distance between the unit and the ceiling should be 0.2 m.
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OPTION II: Assembling handles with their arms faced upwards.
The assembly consists in attaching the installation handles to the unit (1) at regular intervals as in OPTION I In order to do so you should slide 2 (DR -1m), 3 (DR-1.5m) or 4 (DR-2m) assembly screws
(2') M10x80 in each of the two guide bars and knock out holes (6) on the outside of covers (5) with the use of a hammer and a screw and then close the handles' covers (1). Put the handles on the
screws, put backing straps (3) and tighten the nuts (4).
In this assembly option you can rst assemble the handles to the curtain and than screw the whole down to a wall.
ATTENTION! The minimum distance between the unit and the ceiling should be 0.2m.
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3.2.3. VERTICAL ASSEMBLY DIRECTLY ON THE WALL.
For mounting DEFENDER directly to the wall use the left or right hand side holes (1) (depend on hanging side) on the back of the unit. Fixing screws Ø6 mm thick (not included) should have head
diameter of not more than 14mm.
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IMPORTANT! In case of vertical assembly the minimal distance between the device and the oor (150mm) for access to the water coil blowdown connection and the cable terminal should be provide.
min. 0,2m

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DEFENDER 100-200 WHN
DEFENDER 100-200 EHN
3.2.4. VERTICAL ASSEMBLY WITH USING INSTALATION HANDLES.
It is possible to assemble Defender to a wall vertically on both sides of the gate (with the motor on the bottom or on the top).
For this option it is not important if you screw the handles down to the unit rst and then screw the whole down to the wall or rst attach the handles to the wall and then screw the curtain down to the
handles.
In the case of vertical assembly you should use the provided screws M10x80 and M8x80. 1, 2, or 3 handles should be attached with the use of screws (2) M8x80, through a backing strap (3) to the
threaded sleeve (7) installed in the unit's guide bar (zoom A). The handle on the side of the exchanger's connection pins should be mounted on screws (2’) M10x80 slid in guide bars (as in the case
of horizontal assembly), put a backing strap (3') and tighten the nut (4) (zoom B).
IMPORTANT: In case of vertical assembly the minimal distance between the device and the oor (150mm) for access to the water coil blowdown connection and the cable terminal should be
provide.
A
B
B
A
B
A
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min. 0,15m
IMPORTANT! The device is intended for the operation in dry rooms, eCDlusively. Thus, pay particular attention to the condensation of water vapour on engine elements, since it is not tted
for operating in humid environment.
IMPORTANT! The DEFENDER 100-200 air curtains are not intended for the installation:
● Outdoors;
● In humid rooms;
● In rooms categorised as explosive environments;
● In rooms with very high levels of dustiness;
● In rooms with aggressive atmosphere (due to the presence of copper and aluminium structural elements in the heat exchanger and electric heaters).
IMPORTANT! The DEFENDER 100-200 EH air curtains are not intended for the installation on suspended ceilings.
3.3. ASSEMBLY AND INSTALLATION GUIDELINES
CONNECTING OF HEATING MEDIUM
Protect the heat exchanger terminal against the impact of the torque moment 1, when installing a pipeline transporting a heating medium. The weight of installed pipelines should not impose a load
on the heater’s terminals.
IMPORTANT! Pay particular attention to the leak-tightness of connections, when ling the hydraulic system. Make sure that the water owing from a leaky connection does not leak to the
electric engine (at the vertical assembly)
IMPORTANT! It is recommended to use lters in the hydraulic system. It is recommended to clean/rinse the system, draining a few litres of water, prior to the connecting of hydraulic conduits
(the supply conduits, in particular).
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VENTING OF DEVICE/DRAINING OF HEATING MEDIUM
The access to air vents / agent escapes is obtained by means of removing covers / hole plugs 1 and 2 depending on the way of assembling Defender. When using a 13 mm fork spanner or
screwdriver you should loose the screw of an appropriate service valve:
- venting: position A and B – service valve II with the exible pipe, position C – service valve I,
- escape: position A – service valve I, position B – service valve I, position C – service valve II.
EXAMPLE OF HYDRAULIC SYSTEM
1. DEFENDERA 100-200 WH
2. VALVE WITH ACTUATOR
3. VENT VALVE
4. SHUT-OFF VALVE
5. FILTER
6. CIRCULATING PUMP
7. BOILER
SUPPLY
SUPPLY
RETURN
RETURN

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WORKING POSITION
NUMBER OF SERVICE VALVE
I II
AHorizontal (air blown downstream) draining venting
BVertical (air blown from left to right) draining venting
CVertical (air blown from right to left) venting draining
II.
I.
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IMPORTANT! While venting the exchanger you should pay special attention to securing the device against accidental penetration of water into electrical elements.
IMPORTANT! Follow the instruction below, when draining the heating medium:
● Close the shut-off valves before and after the device;
● Close the control valve;
● Unscrew the vent;
● Unscrew the drain;
● Wait until the exchanger has been completely emptied;
● Connect compressed air to the exchanger and blow away the remaining water;
● Close the drain and vent.
IMPORTANT! Remember to vent the heater, if it has been activated after a prior draining of the heating medium.
IMPORTANT! Pay particular attention to the leak-tightness of connections, when ling the hydraulic system. Make sure that the water owing from a leaky connection does not leak to the
electric engine (at the vertical assembly).
CONNECTING OF POWER SUPPLY
IMPORTANT! The system must be equipped with protective equipment that guarantees the disconnecting of the device on all poles of the power source.
Connection to the electric system must be performed by a duly authorized and qualied person .Wire passes are located on the back side of the curtain : (1) – control wire packing , (2) – power
wire packing. The access to the terminal strip is obtained by means of removing the side cover (3) from the motor's side.
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Recommended safety devices and wires
Device DEFENDER 100-200 WHN DEFENDER 100-200 EHN
1m 1,5m 2m 1m 1,5m 2m
Overload and short circuit protection gG 10A gG 16A gG 20A gG 25A
Differential current protection
IDN=30mA
typ AC lub A
IDN=30mA
typ AC lub A
IN=16A IN=40A
Power wire cross-section 3x1,5mm25x1,5mm25x2,5mm25x4,0mm2
IMPORTANT! The specication of cables and protections refers to unbounded arrangement of cables (basic execution of the E installation according to the PN-IEC 60364-5-523 standard). One
should always abide by the local laws and recommendations concerning device connection.
DEFENDER 100-200 is equipped with a terminal strip adjusted to an appropriate thickness of wires.
DEFENDER 100-200 EHN
DEFENDER 100-200 WHN
IMPORTANT!
● It is recommended to connect wires to the terminal strip with previously clamped appropriate clip ends.
● Make sure that the space around the place where the air is sucked in by the curtains, as well as around the exhaust grid, is free of any structural elements of the building, which might
hamper the ow of air (e.g. suspended ceilings, covering development, ventilating ducts etc.).

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DEFENDER 100-200 WHN
DEFENDER 100-200 EHN
4. ELEMENTS OF AUTOMATICS.
Electrical connections can be carried out only by qualied electricians, according to the binding regulations of:
● industrial safety;
● sssembly instructions;
● technical documentation for each individual element of automatics.
IMPORTANT! Study the original documentation delivered together with the elements of automatics, prior to the commencing of assembly and connecting of the system.
MODEL DIAGRAM TECHNICAL DATA COMMENTS
WALL-MOUNTED DX
CONTROLLER
87 35
133
WALL-MOUNTED DX CONTROLLER
● Supply voltage: 220-240 VAC
● Permissible initial current: 6(3A)
● Range of regulation: 10-30°C
● Accuracy of regulation: +/- 1°C
● Level of protection: IP 30
● Assembly method: on plastered walls
● Parameters of working environment: from -10 to +50°C
● One wall-mounted DX controller can support the maximum of 1 curtain of the
WHN, or EHN type.
● The maximum length of the conductor, from the curtain to the programming
device, is 100 m.
● It is recommended to make a connection using a conductor of the min. size 5 x
1 mm2 or 6 x 1mm2 depend on the option of connection (see the schemes)
● The drawings with the elements of automatics contain only visualisations of
sample products.
● The controller does not constitute an integral part of the curtain. It is an
optional device, which may be replaced with any programming device or
switch that conforms to the 60335 standard.
TWO-WAY VALVE WITH ACTUATOR
TWO-WAY VALVE
●Connection diameter: 3/4”
●Operation mode: on/off
●Maximum differential pressure 100 kPa
●Pressure degree PN 16
●Airow degree factor kvs: 6.5 m3/h
●Maximum heat agent temperature: 93°C
●Work environment parameters: 2 …40°C
VALVE ACTUATOR
●Power consumption 7 VA
●Power supply voltage: 230 V AC +/- 10%
●Closing/opening time 5/18s
●Item without supply: closed
●Type of protection: IP20
●Work environment parameters: 2 … 40°C
●Two-way valve should be installed on the return (outlet) pipeline.
●Automation element drawings are only a visualisation of sample products.
●Power connection should be done with a cable min. 3 x 0.75 mm2.
●Automation element drawings are only a visualisation of sample products.
IMPORTANT! If required, the conductors that belong to additional elements of control automatics (thermostat, door switch, wall-mounted controller) should be installed in separate cable
channels, out-of-parallel to the supply conductors.
5. START-UP, OPERATION, MAINTENANCE
5.1. START-UP/PUTTING INTO OPERATION
● Prior to the commencing of any installation or maintenance work, disconnect power supply and secure it against unintentional reactivation.
● It is recommended to use lters in the hydraulic system. It is recommended to clean/rinse the system, draining a few litres of water, prior to the connecting of hydraulic conduits (the supply conduits,
in particular).
● It is advised to use vent valves in the highest point of the system.
● It is recommended to install shut-off valves directly after the device, should the disassembly of the device be necessary.
● All protective equipment is to be installed before the pressure increases, according to maximum the permissible pressure rating of 1.6MPa.
● Hydraulic connection should be free of any stresses and loads.
● Check the correctness of hydraulic connections (leak-tightness of the vent, collecting pipes, correctness of ttings installation), prior to the initial start-up of the device.
● It is recommended to check the correctness of electrical connections (of automatics, power supply), prior to the initial start-up of the device. It is advised to use an additional, external residual-
current protection.
IMPORTANT! All connections should be carried out, according to this technical documentation and the documentation delivered with automation equipment.
5.2. OPERATION AND MAINTENANCE
● It is advised to carefully analyse all the operational and assembly guidelines listed in chapter 3 and 4.
● The casing of the device does not require maintenance.
● The heat exchanger should be cleaned on a regular basis from dust and fat deposit. It is especially recommended to clean the exchanger before the heating season with the use of compressed air
from the air intake side (after removing the front panel). You should pay special attention to the exchanger's lamellae which are very delicate.
● Should the lamellas be deformed (bent), straighten them with a special tool.
● The fan's motor does not require any exploitation service, the only service activities that may be necessary concern cleaning the air intakes from dust and fat deposit.
● Disconnect phase voltage, if the device is shut down for longer periods of time.
● The heat exchanger does not have any anti-freezing protections.
● It is recommended to provide a periodical purging of the heat exchanger, preferably using compressed air.
● Should the temperature in the room drop below 0°C, with a simultaneous drop of the heating medium temperature, there is a risk that the heat exchanger might freeze (crack).
● The level of air pollutants should meet the criteria allowable concentrations of pollutants in indoor air, for non-industrial areas, the level of dust concentration up to 0.3 g / m³.
● It is forbidden to use device for the duration of the construction works except for the start-up of the system.
● The equipment must be operated in rooms used throughout the year, and in which there is no condensation (large uctuations in temperature, especially below the dew point of the moisture
content). The device should not be exposed to direct UV rays.
● The device should be operated at the supply water temperature up to 90 °C with working fan.