Dru Maestro 75 Tunnel RCH User manual

English
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Maestro 75 Tunnel RCH
Installation manual
DRU-777510-EN-US-0420-6
G20/G25/G25.3 (Natural gas), G30 (Butane) and G31 (Propane)
EN
959.113.02.EN

English
INSTALLATION MANUAL
1. Introduction
2. CE declaration
3. SAFETY
3.1 General
3.2 Regulations
3.3 Precautions / safety instructions at installation
3.4 Principle of ignition cycle
4. Removing the packaging
5. Installation
5.1 Type of gas
5.1.1 Reconstruction to different type of gas
5.2 Gas connection
5.3 Electric connection
5.4 Placing the appliance
5.5 Placing a built-in appliance
5.6 Placing the chimney breast
5.7 Placing the control hatch
5.8 Concentric system
5.9 Connection to an existing chimney (C91)
5.10 Additional instructions
5.10.1 Convection box
5.11 Construction frame
5.12 Glass pane
5.12.1 Removing the glass pane
5.12.2 Placing the glass pane
5.13 Setting the appliance
5.13.1 Restrictor slide
5.13.2 Air inlet guide
5.14 Placing the wood set
5.14.1 Wood set
6. Control
6.1 Remote controls
6.2 Alternative controls
7. Final inspection
7.1 Gastightness
7.2 Gas pressure/line-pressure
7.3 Ignition main burner
7.4 Flame picture
8. Maintenance
8.1 Parts
9. Delivery
10. Malfunctions
Appendix 1 Malfunctions
Appendix 2 Tables
Appendix 3 Figures
Contents
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English
INSTALLATION MANUAL
1. Introduction
DRU, a manufacturer of gas-fired heating appliances, develops and produces products that comply with the
highest possible quality, performance and safety requirements. This appliance has a CE label, which means that it
complies with the essential requirements of the European Gas Appliance Directive. The appliance is supplied with
an installation manual and a user manual. Installation and maintenance of the appliance should be performed by a
professional certified expert with a proven knowledge and demonstrable competence in this field. A professional
expert takes all technical aspects such as heat output, gas connection and electricity into account, as well as the
flue gas discharge requirements. The information in this installation manual will ensure the appliance is installed in
such a way that it will function properly and safely. If the installation instruction is not clear, national/local
regulations must be observed.
This manual discusses the installation of the appliance and the regulations that apply to the installation. In
addition, the appliance's technical data are shown and information is provided about maintenance, possible
malfunctions that might occur and their possible causes.
The figures are at the back of this installation manual, in the appendix.
Fully and carefully read and use this installation manual, before installing the appliance. When using the DRU
Powervent system® or DRU CM system®, the accompanying installation manual should also be read completely
and carefully, before installation work is started.
The following symbols are used in the manuals to indicate important information:
Ø Work to be performed
!Tip Suggestions and recommendations
!Caution You will need these instructions to prevent problems that might occur during installation and/or use.
!Caution You need these instructions to prevent fire, personal injury or other serious damages.
After final delivery, the manuals should be handed over to the user.
2. CE declaration
DRU declares that company internal measures guarantee that appliances produced by DRU meet the essential
requirements and guidelines of the regulation concerning gas-fired appliances and the accompanying standards.
This declaration loses its validity if changes are made to the appliance without written permission from DRU. The
instructions in the manuals must also be observed at all times.
A copy of the CE test certificate can be downloaded.
Product:
Type:
Product identification number:
Conformity assessment agency:
Regulations:
Directives:
Standards:
Gas-fired heating appliance
Maestro 75 Tunnel RCH
0063CS3282
Kiwa Netherlands B.V. (0063)
Wilmersdorf 50
Postbus 137
7300 AC, Apeldoorn
(EU) 2016/426, (EU) 2015/1188
2014/35/EU, 2014/30/EU
EN 613:2000, EN 613:2000/A1:2003, EN 613:2000/PrA2:2002
EN 60335-1:2012, EN 60335-2-102:2016, EN 55014-1:2007
EN 55014-2:2015, EN 61000-3-2:2014, EN 61000-3-3:2013
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DRU Verwarming B.V.
Postbus 1021, 6920 BA Duiven
Ratio 8, 6921 RW Duiven
R.P. Zantinge Managing director
Duiven, 09-02-2018

English
INSTALLATION MANUAL
3. SAFETY
3.1 General
!Caution • Observe the generally applicable regulations and precautions/safety instructions in this manual.
• First check – in appendix 2, table 2 – whether the appliance to be installed has the correct technical version.
• Read the manual carefully to ensure a proper and safe installation of the appliance.
• Observe the regulations/instructions in this manual.
3.2 Regulations
Please install the appliance in accordance with the applicable national, local and constructional (installation)
regulations.
3.3 Precautions / safety instructions at installation
Carefully observe the following precautions/safety regulations:
Ø The appliance may only be installed and maintained by recognised installers who are skilled in the field of gas
heating and electricity.
Ø Do not make any changes to the appliance.
Ø When installing a built-in appliance:
• Use non-combustible and heat-resistant materials for the chimney breast, including the top of the chimney
breast and the material in the chimney breast, such as the floor under the appliance and the back wall against
which the appliance will be placed. For this you can use both sheet material and stone-like materials.
• Take sufficient measures to prevent temperature of a wall behind the chimney breast becoming too high,
including the materials and/or objects behind the wall.
• Take the minimum required internal dimensions of the chimney breast into account. These are for the benefit
of safety and for the prevention of excess heat accumulation in the chimney breast.
• Vent the chimney breast by means of the ventilation holes (see table 4-1). These are essential for ensuring
safety and for the prevention of excess heat accumulation in the chimney breast.
• Use heat-resistant electrical wiring.
• Place heat-resistant electrical wiring away from the appliance and as low as possible in the chimney breast.
This has to do with the temperature development in the chimney breast.
Ø Only use the flue gas discharge / combustion air supply system supplied by DRU.
Ø When installing a free-standing appliance: place the appliance away from the back wall by the minimum distance
stated further down in the text.
Ø Do not cover the appliance and/or do not wrap it in an insulation blanket or any other material.
Ø Keep combustible objects and/or materials outside the appliance's radiation range. This radiation range is
500 mm, unless stated otherwise.
Ø Only use the accompanying set, such as the wood or pebble set, and place it exactly as
described.
Ø Leave space around the ionisation pin and spark electrode and never place glow material around these pins.
Ø Make sure there is no dirt in gas pipes and connections.
Ø Place a gas tap in accordance with applicable regulations.
Ø Prior to putting into operation, check the complete installation for gastightness.
Ø Prevent blocking of the explosion hatch(es) at the top and/or bottom of the appliance and check whether it/they
connect(s) properly to the sealing surface before the appliance is built in.
Ø Do not ignite the appliance before the gas, discharge and electric connections have been fully installed, first
observe the procedure described in chapter 7.3.
Ø Do not use the appliance when a pane is broken and/or cracked, until it has been replaced.
Ø The appliance was designed for atmospheric and heating purposes. This means that all visible surfaces, including
the glass pane, can become hotter than 100C°. It is recommended to always place a protective grating in front of
the appliance when there are children, elderly people or handicapped persons in the same room as the appliance.
If it is possible that vulnerable people are regularly present in the room with no supervision, a fixed guard should
be mounted around the appliance.
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INSTALLATION MANUAL
3.4 Principle of ignition cycle
Below you will find a brief description of how this appliance is ignited. The receiver in the appliance will get a
signal from the remote control to start the ignition process. The receiver will get the signal to start the ignition
process. This signal is passed on to the burner device, after which, if applicable, the relay for the Powervent
System® is switched. After an 8 second interval, the ignition on the spark electrodes will start. If no Powervent
System® is connected, only the relay will switch and the ignition will start immediately. The main burner will be
ignited at about 50% of its capacity. This will prevent a larger amount of gas in the combustion chamber, if no
ignition takes place. When the gas ignites, ionization will have to be detected. In order to make sure the flame has
passed over, this will take place at the other side of the burner. When ionization is detected, the gas control will
modulate to 100%.
In case of an appliance with a switchable second burner, the second valve is switched (you will be able to hear a
'click') in order to ignite the second burner. After ignition of the second burner, the appliance will always go to the
full position (full capacity). This will guarantee that the second burner will actually ignite. The second burner can
be switched on and off manually, by means of the remote control. In case of switching on manually, the appliance
will first return to full load.
!Caution The appliance's control unit is characterized by stringent safety requirements. It is possible that the burning
appliance switches off automatically and then switches back on again. This is not a failure, but a check.
The moment the appliance's control unit is connected to mains voltage, the control unit will perform this check
every 24 hours. If the appliance is burning at that time, the appliance will extinguish and then start again
immediately.
If you wish to prevent this, you can remove the plug and insert it again at a time during the 24 hours when the
appliance is never or hardly ever burning.
4. Removing the packaging
Note the following items when removing the packaging:
Ø Remove all packaging materials.
Ø Remove all supplied components in, on and/or at the appliance.
Ø Check the appliance and accessories for damages (during transport).
Ø If necessary, contact your supplier.
Ø Never install if an appliance is damaged!
Ø Remove any screws that are used to fix the appliance to a platform or pallet.
!Caution The glass pane(s) is/are made of a ceramic material. Very small irregularities in the glass panes cannot be avoided,
but are within the required quality standards.
!Caution Keep plastic bags away from children.
Appendix 2, table 1 indicates which components should be available after unpackaging.
Ø Contact the supplier if you find that not all components have been supplied.
Ø Packaging must be disposed of in accordance with the regulations.
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