Dru KAMARA 7KW, KAMARA 12KW, KAMARA 16KW Installation Manual

INSTALLATION MANUAL GB/IE

INSTALLATIEHANDLEIDING NL/BE

MANUEL D’INSTALLATION FR/BE/LU/CH

KAMARA

7KW / 12KW / 16KW

Please retain this document carefully

Bewaar dit document zorgvuldig

Veuillez conserver soigneusement ce document

957.625.04

DRU VERWARMING B.V.
HOLLAND

English

CONTENTS

Preface ..........................................................................................2

1. Introduction .......................................................................2

2. CE declaration ...................................................................2

3. SAFETY ...............................................................................3

3.1 General ...............................................................................3

3.2 Regulations .........................................................................3

3.3 Precautions/safety instructions during installation ...3

4. Removing the packaging ..................................................3

5. Installation ..........................................................................3

5.1 Regulations .........................................................................4

5.2 Type of gas .........................................................................4

5.3 Gas connection .................................................................4

5.4 Electrical connection .......................................................4

5.5 Wall-terminal and manifold ............................................4

5.6 Placing the appliance ........................................................8

5.7 Flue gas discharge/combustion air supply system.....8

5.8 Connecting gas ............................................................... 11

5.9 Converting to propane ................................................ 11

5.10 Connecting electrical equipment ............................... 11

6. Operating the appliance ...............................................12

6.1 Control panel ................................................................. 12

6.2 Switching on the appliance for heating .................... 12

6.3 Switching on the appliance for air circulation ........ 12

6.4 Switching off the appliance .......................................... 12

7. Final check .......................................................................12

7.1 Gastightness .................................................................... 12

7.2 Gas pressure / supply-pressure ................................. 13

7.3 Ignition burner ............................................................... 13

7.4 Flame picture .................................................................. 13

7.5 Flue gas discharge / combustion air supply ............. 13

8. Remove / replace the outer casing ........................... 13

9. Maintenance .................................................................... 13

9.1 Performance ................................................................... 13

9.2 Replacing parts ............................................................... 13

10. Delivery ........................................................................... 17

11. Troubleshooting guide ................................................. 18

Appendix 1 Parts included with the delivery ................19

Appendix 2 Electric wiring diagram ................................20

Appendix 3 Technical data ................................................21

Appendix 4 Parts .................................................................21

Kamara

CONTENTS

1

Preface

DRU, a manufacturer of gas heating appliances, develops
and produces products that comply with the highest
quality, performance and safety requirements.
This guarantees that the user will be able to enjoy using
his product for many years to come.

This appliance has a CE marking, which means that it
complies with the essential requirements of the European
gas appliance directive.

As an installer, you must be competent in the field of gas
heating.

Two manuals are supplied with the appliance: the
installation manual and the user manual.
The installation manual will give you the information you
need to install the appliance in such a way that it will
operate properly and safely.

This manual discusses the installation of the appliance
and the regulations that apply to the installation. In
addition, you will find technical data for the appliance and
information on maintenance, any malfunctions that might
occur and their possible causes.

Please carefully read and use this installation
manual.

The following symbols are used in the manual to indicate
important information:

• 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 delivery, you should give the user manual
AND this installation manual to the user.

1. Introduction

The Power Flue is a closed gas heating appliance with a
forced convection air flow and a forced flue gas discharge.
The appliance can be supplied in 7 kW, 12 kW and 16 kW
versions.
The appliance is always fixed against a wall of
incombustible and heat-resistant material. The passage to
the outside shall be made with the supplied wall terminal.
When using the standard flue, the terminal will be placed
in the same wall against which the appliance is placed.
It is possible to use an extended flue. This flue may have
a maximum length of 10 meters for the 7kW and 12kW
versions; for the 16kW version the extended flue can have
a maximum length of 3 meters.
The extended flue can be placed at both the left and right
side of the appliance. For this, special knock-outs have
been placed at both sides, in the casing.
The components for the extended flue will be supplied by
Drugasar upon request.
When supplied, the appliance is set for the use of natural
gas (G20). Upon request, a conversion set for propane
(G31) can be supplied.

2. CE declaration

We hereby declare that the design and construction of
DRU’s gas heating appliance comply with the essential
requirements of the applicable EC directives.

This declaration will lose its validity if adjustments are
made to the appliance, without prior written permission
by DRU.

Product: gas heating appliance with forced convection air

flow

Type: Power Flue

Applicable EEC directives:
90/396/EEC
2006/95/EC
89/336/EEC

Internal measures by the company guarantee that
appliances produced in series comply with the essential
requirements of the prevailing EEC directives and the
standards derived from them.

M.J.M. Gelten
General manager
Dru verwarming B.V.
Postbus 1021, 6920 BA Duiven
Ratio 8, 6921 RW Duiven
www.dru.nl

INSTRUCTIONS FOR INSTALLATION

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3. Safety

3.1 General

Caution - Carefully read this chapter on safety,

before you start performing installation
or maintenance work;

- Please observe the general regulations and
the precautions/safety instructions in this
manual.

3.2 Regulations

• Please install the appliance, including the electrical
installation, in accordance with the applicable national,
local and constructional (installation) regulations.
These are included in, for instance:

- Gas Safety (Installation and Use) Regulations;

- B.S. 6891;

- B.S. 5871: Part 1;

- B.S. 5440: Part 1;

- B.S. 5440: Part 2;

- Local Building Regulations;

- I.E.E Wiring Regulations;

- Health and Safety at work

3.3 Precautions / safety instructions during

installation

Carefully observe the following precautions/safety
regulations:

• you should only install and maintain the appliance if you
are a competent installer in the field of gas heating:

• do not make any changes to the appliance;

• only use the flue gas discharge / combustion air supply
material supplied by Drugasar;

• always place the appliance against a wall of incombustible
and heat-resistant material;

• use the wall brackets when mounting the appliance to the
wall. This will guarantee the minimum required distance
of 10 mm from the back wall;

• make sure the appliance has sufficient distance from
other objects and materials (see fig. 1). The free space
surrounding the appliance is necessary for a proper
and safe operation and for accessibility in case of
maintenance;

• make sure there is a free outflow of warm convection air
at the front of the appliance;

• make sure there is a free supply of cold convection air at
both sides of the appliance; Curtains, for example, could
block the inlet as a result of the sucking action of the
convection fan.

• avoid warm convection air from recirculation through the
cold convection air inlet;

• do not cover the appliance and the discharge material
and/or do not wrap it in an insulation blanket or any
other material;

• avoid dirt in gas tubes and connections;

• check the connections for gastightness before using the
appliance;

• do not place and/or use the appliance in a moist
environment;

• place an all-pole switch near the appliance, with a contact
opening of at least 3 mm;

• connect the appliance to earth;

• place electrical connections in such a way that they are
free from the appliance;

• do not ignite the appliance until it is fully installed.

4. Removing the packaging

Note the following items when removing the packaging:

• Check the appliance for damages during transport.

• If necessary, contact Drugasar Service.

• Check whether all parts have been supplied.

In Appendix 1 you can see which parts you should have
after removing the packaging.

• Contact Drugasar Service if you do not have all the parts

after you finished removing the packaging.

• Dispose packaging in accordance with local regulations.

Kamara

INSTRUCTIONS FOR INSTALLATION

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Fig. 1

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5. Installation

Read this manual carefully to ensure a proper and safe
operation of the appliance.

!Caution Install the appliance in the order described in

this chapter.

5.1 Regulations

• Please observe the applicable national, local and
constructional (installation) regulations for both the
appliance and the electric installation.

• Observe the regulations/instructions in this manual.

5.2 Type of gas

The type plate indicates for which type of gas, gas
pressure and for which country this appliance is intended.
The type plate can be found on the left side on the
convection box. You can see it after removing the casing.

The appliance can be converted for usage with propane.
The gas supply pressure should be at least 30 mbar.
For conversion to propane, see section 5.10.

• Check whether the appliance is suitable for the type of gas
and the gas pressure used at the location.

5.3 Gas connection

Caution Avoid dirt in the gas tube and in the

connections.

The following requirements apply to the gas connection:

- use a gas tube with the correct dimensions, so that no

pressure loss can occur;

- the gas tap, if used, should have CE marking;

- you should always be able to reach the gas tap.

5.4 electrical connection

The following requirements apply to the electrical
connection:

- you must place an all-pole switch near the appliance,
with a contact opening of at least 3 mm;

- the required electrical voltage is 230V/50Hz~;
protected with 5A.

5.5 Wall-terminal and manifold

5.5.1 Position wall-terminal/manifold

Positioning of wall-terminal/manifold directly behind the
appliance. (For further information see chapter 5.7.2)

• Determine the location of the appliance; the dimensions
can be found in fig. 1 and 2.

Caution - Make sure the appliance has sufficient

distance from other objects and materials.
The free space surrounding the appliance
is necessary for a proper and safe
operation and for accessibility in case of
maintenance.

- Always place the appliance against a wall of

incombustible and heat-resistant material.

!Tip The manifold has two combustion air supply

connections, see chapter 5.5.2

!Tip Determine the position of the appliance and the

connections by using the dimensions in
fig. 3a and 3b.
For extended flue sample see fig. 8.

• Determine the location of the manifold/wall-terminal.

Caution Use Table 2 to determine the allowed

number of curves in combination with the
length of the discharge system.

!Caution - The bends in the flexible flue gas

discharge tube and the combustion air
supply hose should be as smooth as
possible, to keep the resistance as low
as possible;

- The wall-terminal is suitable for walls with

a thickness up to 400 mm; if necessary,
Drugasar can supply a wall wall-terminal
for walls with a thickness up to 900 mm;

- Take the requirements concerning the

position of the wall-terminal in the outer
wall into consideration, as indicated in
section 5.5.1.1.

- See also chapter 5.7.3, for the extended

flue option.

4

INSTRUCTIONS FOR INSTALLATION

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Fig. 2

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INSTRUCTIONS FOR INSTALLATION

Fig. 3a

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6

INSTRUCTIONS FOR INSTALLATION

5.5.1.1 Position of wall-terminal in outside wall

The following diagram and related chart are broadly based
around BS5440:Part 1:2000. For additional comments/
applications please refer to this BSI standard directly.

Fig. 3b Fig. 3c

INSTRUCTIONS FOR INSTALLATION

Minimum dimensions of flue wall-terminal positions

Balance flues

room sealed

Open flues

Wall-terminal position

Natural

draught

Fanned

draught

Natural

draught

Fanned

draught

A * Directly below an opening, airbrick,

window etc.

0-7kW

>7-14kW

>14-32kW

>32-70kW

300 mm

600 mm

1500 mm

2000 mm

300 mm Not allowed 300 mm

B * Above an opening, airbrick, window

etc.

0-7kW

>7-14kW

>14-32kW

>32-70kW

300 mm

300 mm

300 mm

300 mm

300 mm Not allowed 300 mm

C * Horizontally to an opening, airbrick,

window etc.

0-7kW

>7-14kW

>14-32kW

>32-70kW

300 mm

400 mm

600 mm

600 mm

300 mm Not allowed 300 mm

D Below a gutter or sanitary tube if

combustible material protected.

300 mm 75 mm Not allowed 75 mm

E Below eaves. 300 mm 200 mm Not allowed 200 mm

F Below balconies or open roofed out

buildings.

600 mm 200 mm Not allowed 200 mm

G From a vertical drain or soil tube. 300 mm 150 mm Not allowed 150 mm

H From an internal or external corner. 600 mm 300 mm Not allowed 200 mm

I Above ground or balcony level. 300 mm 300 mm Not allowed 300 mm

J From a surface facing the wall-terminal. 600 mm 600 mm N/A 600 mm

K From another wall-terminal facing the

wall-terminal.

600 mm 1200 mm N/A 1200 mm

L From an opening in the car port into a

dwelling.

1200 mm 1200 mm N/A 1200 mm

M Vertically from a wall-terminal on the

same wall.

1500 mm 1500 mm N/A 1500 mm

N Horizontally from a wall-terminal on the

same wall.

300 mm 300 mm N/A 300 mm

O From a wall on which the wall-terminal

is mounted.

N/A N/A N/A 50 mm

P From a vertical structure on the roof. N/A N/A 600 mm N/A

Q Above intersection with roof. N/A N/A 600 mm 150 mm

Notes: N/A = NOT APPLICAIABLE * In addition, the wall-terminal should not be nearer than 150mm (fan draught) or 300mm (natural draught) to an
opening in the building fabric formed for the purpose of accommodating a built-in element such as a window frame. Separation distances are linked to the
rated heat inputs as shown.

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5.5.2 Installation of wall-terminal and manifold

Follow the procedure below when installing the wall­terminal and manifold:

• Drill a hole in the wall, with a diameter of 105 mm.

• Drill 3 holes in the wall from the outside, for mounting
the wall-terminal.

!Caution - Place the wall terminal with the groove/

folded seam at the top;

• Glue the sealing/gasket of the wall-terminal to the flange.

• Temporarily mount the wall-terminal from the outside.

• Slide the manifold from the inside as far as possible onto
the concentric tubes of the wall-terminal.

• Determine the distance between manifold and wall.

• Unscrew the wall-terminal.

• Cut the wall-terminal to size.

• Mount the wall-terminal for the final time.

• Determine in which angle the manifold should be placed.

• Apply a sufficient amount of heat-resistant sealant to the
outside of the galvanized steel combustion air supply tube.

• Apply a film of heat resistant sealant to the inside of the
aluminium flue gas discharge tube.

• Place the sealing/gasket of the manifold between wall and
manifold.

!Tip For the manifold, you can choose between two

combustion air supply connections.

• Mount the manifold in the correct position.

• Drill 3 holes in the wall for mounting the manifold.

• Mount the manifold with the screws and washers supplied.

• If necessary, apply a wall-terminal guard.

• Place the wall-terminal guard centrally over the wall­terminal.

5.6 Placing the appliance

Place the appliance as follows:

Caution - Do not make any changes to the

appliance;

- Do not cover the appliance and the
discharge material and/or do not wrap
it in an insulation blanket or any other
material;

- Mount the appliance to the wall using
the wall brackets; this will guarantee the
minimum required distance of 10 mm
from the back wall;

- Make sure there is a free outflow of
warm convection air at the front of the
appliance;

- Make sure there is a free supply of
cold convection air at both sides of the
appliance. Curtains, for example, could
block the inlet as a result of the sucking
action of the convection fan.

- Avoid that warm convection air can
recirculate through the cold convection
air inlet.

!Tip - Prevent construction grid/drill material from

contaminating the appliance;

- Only mount the casing, after performing the final
check in section 7.

• Provide a gas connection at the location. For details, see

section 5.3.

• Provide an electrical connection at the location. For

details, see section 5.4.

• Remove the casing:

- Unscrew the screws at both sides of the casing

(see fig. 4);

- Lift the casing appr. 1 cm and slide/lift the casing to the

front.

Caution Avoid damaging the wiring when taking off

the mantel.

• Place the appliance on its destined location.

• Drill holes for mounting the appliance.

• Attach the appliance to the wall, using the supplied plugs,

washers and screws.

5.7 Flue gas discharge / combustion air supply

system

5.7.1 Construction

For the 7kW and 12kW Power Flue, the maximum length
of the discharge tubes (vertical and horizontal) is 10
meters when using a maximum of 2 bends of 90º; when
3 bends of 90º will be used, the total maximum length of
the discharge system is 6 meters, and when 4 bends of 90º
will be used, the maximum length is 2 meters.

For the 16 kW Power Flue, the maximum length of the
discharge tubes (vertical and horizontal) is 3 meters, with
a maximum of 1 bend of 90°.

Depending on the construction, the appliance is set by
means of a restriction.

INSTRUCTIONS FOR INSTALLATION

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Fig. 4

For the 7kW version, the restrictor (supplied) is mounted
on the combustion fan. Please note the restrictor is part
of the venturi on the combustion fan.
For the 7kW Power Flue, the restriction is 22.5 mm when
using natural gas and propane.

In Table 2 below, you can see the settings of the
restriction in relation to the construction of the discharge
system and the type of gas that is used
At the 12kW and 16kW versions, the restriction – if
necessary – will be placed in the flue gas discharge
connection of the manifold, with a heat-resistant sealant
(see fig. 7).

At the 12kW Power Flue, a restriction is only required if
the appliance is connected directly to the wall-terminal.
When using natural gas, the restriction will be 36 mm, and
when using propane 45 mm.

For the 16kW Power Flue, a 45 mm restriction is also
only required in case of a direct connection to the wall­terminal. This value applies to the usage of both natural
gas and propane.

INSTRUCTIONS FOR INSTALLATION

Type Type of gas Number of

90º bends

tube length

(meter)

Restriction

(mm)

Remarks

7kW G20/G31 0 0 22,5

Direct connection to wall-terminal

0 1-10 22,5

1 1-10 22,5

Restriction is a fixed part

2 1-10 22,5

of venturi tube

3 1-6 22,5

4 1-2 22,5

12kW G20 0 0 36

Direct connection to wall wall­terminal

0 1-10 none

1 1-10 none

2 1-10 none

3 1-6 none

4 1-2 none

G31 0 0 45

Direct connection to wall-terminal

0 1-10 none

1 1-10 none

2 1-10 none

3 1-6 none

4 1-2 none

16kW G20/G31 0 0 45

Direct connection to wall-terminal

0 1-3 none

1 1-3 none

Table 2: Relations between restriction, discharge system construction and type of gas

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5.7.2 Placing standard flue kit

Caution Only use the standard flue kit supplied by

Drugasar.

!Caution - The cutting sides of the flexible

combustion gas discharge tube are sharp;

- The bends in the flexible flue gas discharge
tube and the combustion air supply hose
should be as smooth as possible, to keep
the resistance as low as possible;

- The 16kW Power Flue has 2 combustion
air supply connections on the appliance.
They should both be connected and be
combined by means of a T-joint (see fig.

5).

Follow the steps below for mounting the standard flue kit:

• Make sure the flexible combustion gas discharge tube has
the right dimensions

• On one side of the flexible combustion gas discharge tube,
apply the heat-resistant sealant in the grooves on the
inside.

• Add the hoseclamps

• Slide the flexible discharge tube onto the venturi tube that
is connected to the combustion fan (see fig. 6).

• If necessary, attach the restriction in the flue gas discharge
connection of the manifold with the supplied heat resistant
sealant; see Table 2; see fig. 7.

• Connect the flexible flue tube to the manifold in the same
way as described above.

• Fasten the hoseclamps.

• Make sure the flexible combustion air supply hose has the
right dimensions.

• Connect this hose to the appliance and the manifold by
using the supplied standard hose clamps.

• Seal the unused combustion air supply connection on the
manifold using the supplied silicon plug.

5.7.3 Placing the extended flue

Caution - Mount the flue tubes sloping towards the

appliance.

- Place a condensate drain with U-trap in
the rigid part of the discharge system, if
the total length exceeds 3 meters;

- Install the condensate drain within a
distance from the appliance of 3 meters,
but preferably as close as possible to the
appliance.

!Caution - Connect rigid tube pieces/bends to the

manifold. You may only use the flexible
discharge tube/air supply hose on the
appliance;

- Prevent construction grid/drill material
from contaminating the appliance.

!Tip The extended flue can optionally be

connected to the left or right side of the
appliance.

Proceed as follows, when installing the extended flue
(see fig. 8):

• Mount the required brackets for the rigid aluminium flue
gas discharge tube and the rigid aluminium combustion air
supply tube.

• See also fig. 3b for possible position of the tubes.

• Mount the tubes and any bends of rigid aluminium.

• Connect the flexible discharge tube/air supply hose as
described above for the standard flue kit, section 5.7.2

INSTRUCTIONS FOR INSTALLATION

10

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Fig. 5

Fig. 6

Fig. 7

!

5.8 Connecting gas

Use the following procedure when connecting the gas; for
this, also see section 5.3, Gas connection:

!Tip The gas connection can optionally be connected

to the left or right side of the appliance.

• If necessary, blow through the gas tube.

• Connect the gas tube with gas tap to the 15mm tube on
the appliance.

!Caution Do not twist the gas tap when connecting the

gas tube.

• Bleed the gas tube.

5.9 Converting to propane

If necessary, the appliance can be converted to use of

propane.

For this, the injector has to be replaced and the burner

pressure has to be adjusted.

Follow the procedure described below:

Caution - Close the gas tap;

- Switch off the all-pole switch;

- Remove the main fuse.

• Remove the ignition cap.

• Remove the sealing surrounding the electrode pen.

• Unscrew the 4 screws of the cover plates around the gas
tube and ignition pen (see fig. 9).

• Remove the cover plates.

• Unscrew the brass union of the gas tube under the
electrode pen.

• Unscrew the brass union of the gas tube on the gas
control valve.

!Caution Make sure the thread reducing bushes on the

gas control valve do not rotate as well.

• Remove the gas tube from the appliance.

• Remove the injector holder.

• Replace the injector by the propane injector.

• Reassemble everything in opposite order.

• Adjust the burner pressure for propane, using the test
point and the adjusting screw; see fig. 10. Appendix 3
contains the required gas pressure for the various versions
of the appliance.

!Caution When checking/adjusting the burner pressure,

the appliance should be in operation for at least
10 min.

!Tip The adjusting screw is located behind the cover

screw.

5.10 Connecting electrical equipment

Caution The appliance must be earthed.

!Tip The electrical connection can optionally

be made at the left or right side of the
appliance.

Standard, the appliance is designed for use of an external

clock and/or thermostat through a 5 wire cable; for this,
see the electrical diagram in appendix 2.

When the external clock and/or thermostat is not used,

the relay can be bridged by connecting the contacts.
Or connect 1 N and 2 L

• Connect the electric wiring in accordance to the diagram.

INSTRUCTIONS FOR INSTALLATION

Fig. 8

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Fig. 9

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6. Operating the appliance

6.1 Control panel

The control panel is located under the cover at the top of
the appliance.
The cover is provided with a lock.
On the panel you will find (see fig. 11)
a) summer/winter switch;
b) thermostat;
c) lock-out mode;
d) reset button;
e) fuse.

sub a)

“0” position

In the position “0”, the appliance is switched off

winter position

In the winter position, you have 2 options:

1) The appliance is controlled by an external clock and/or
thermostat;

2) The appliance is only controlled by the internal
thermostat.

summer position

In the summer position the appliance will operate
independently from an external clock and/or thermostat.
In this position, only convection air (= surrounding air) is
circulated.

Sub b)
The (internal) thermostat can be set between 5 ºC
and 35 ºC.
The green led of the thermostat will light if the appliance
is switched on and the thermostat is “not requesting”.
The red led will light if the appliance is switched on and
the thermostat is “requesting”.

Sub c)
In case of a malfunction, the red lamp of the lock-out
mode will light.

Sub d)
In case of a malfunction, the appliance can be reset by
using the reset button.

6.2 Switching on the appliance for heating

• Set the external clock and/or thermostat, if present.

• Set the thermostat to the required temperature.

• Set the switch to the winter position.

Caution About approximately 30 seconds after

igniting the burner, the convection fan
should switch on.
The louvre openings will release warm air.

6.3 Switching on the appliance for air
circulation

• Set the switch to the summer position.

The appliance will continuously circulate convection air

(= surrounding air).

6.4 Switching off the appliance

• Set the switch to the “0” position.

7. Final check

To check that the appliance is operating correctly and

safely, you must proceed as follows before the appliance is
used.

7.1 Gastightness

Caution All connections must be gastight.

!Caution The supply pressure to the gas control

valve cannot exceed 50 mbar.

• Check the connections for gastightness.

• Make the connections gastight, if necessary.

INSTRUCTIONS FOR INSTALLATION

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Fig. 11

SCREWS

(behind cover screw)

Fig. 10

test point

test point

7.2 Gas pressure / supply-pressure

The burner pressure is set at the factory for the use of
natural gas; see type plate. It is not necessary to check the
burner pressure after installation.
The supply-pressure in house installations should be
checked, as they can vary.

Caution - After conversion to propane, the

burner pressure must be checked and if
necessary adjusted.

- After maintenance work the burner
pressure must be checked, irrespective
of whether you are using natural gas or
propane, and adjusted if necessary.

Proceed as follows; see fig. 10:

• Check the supply-pressure.

• Contact the gas company if the supply-pressure is not

correct.

• If necessary, check the burner pressure; see Appendix 3

for the required burner pressure.

!Caution When checking/adjusting the burner

pressure, the appliance should be in
operation for at least 10 min.

• Adjust the burner pressure, if necessary.

!Tip The adjusting screw is located behind the

cover screw.

7.3 Ignition burner

For igniting the burner, see section 6.2.

!Caution After 5 ignition attempts, the appliance

will enter the lock-out mode.

• Ignite the burner

• Check if the convection fan is working.

• See in Table 3, Diagnosis of malfunctions, if the convection

fan does not work and/or the burner does not ignite.

7.4 Flame picture

• Check the flame picture.

If the flame picture is unacceptable, do the following:

• Check whether the flue gas discharge and/or air supply are

blocked.

• If necessary, remedy the blockage.

7.5 Flue gas discharge / combustion air supply

• Check the flue gas discharge and the combustion air

supply for gastightness.

• Check whether the flue gas discharge and/or combustion

air supply are lying free from, for example, electrical
wiring, the convection housing.

• If a failure occurs, correct it.

8. Remove / replace the outer casing

The casing is removed as follows:

Caution Avoid damaging the wiring when taking off

the casing.

• Take out the screws at both sides of the casing
(see fig. 4);

• Lift the casing appr. 1 cm and slide/lift the casing to the
front.

Replace in reverse order of the removal procedure.

!Tip If the casing is placed for the first time,

the knock-outs concerned must be
removed first.

!Caution Make sure that the locating bracket fall

into the intended notches.

9. Maintenance

Once a year the appliance should be checked, cleaned and,
if necessary, repaired by a competent installer in the field
of gas heating.
Check that the appliance is operating correctly and safely.

!Caution - Close the gas tap;

- Switch off the all-pole switch;

- Remove the main fuse
during maintenance
work;

- Check the gastightness after repair.

9.1 Maintenance instructions

Perform maintenance work as described below:

• Remove the casing, see section 8.

• Clean the filters as follows:

- Suck/blow the filter clean.
If the filter is not sufficiently clean, you must

- Unscrew the 4 screws;

- Remove the filter;

- Flush the filter with water and clean it with a soft brush.

• Perform the procedure above for both filters.

• Check the fans for contamination and clean, if necessary.

• Check if the fans are operating correctly and replace them
if necessary; see section 9.2.

• Inspect the flue gas discharge / combustion air supply
system and, if necessary, replace the flexible flue gas
discharge tube.

• If necessary, clean the burner and the injector. For
removing the burner, see section 9.2.1.

• Perform a check as described in chapter 7.

9.2 Replacing parts

Below you will see how the various parts can be replaced.

• Remove the casing, for this see section 8.

INSTRUCTIONS FOR INSTALLATION

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9.2.1 Burner

!Caution Only for Power Flue 7kW

- Remove the cover plate to the left on the
convection housing; see fig. 12;

- Unscrew the nut;

- Remove the washer and the sealing ring.

For all appliances, continue as described below:

• Remove the ignition cap.

• Remove the sealing surrounding the electrode pen.

• Take out the 4 screws of the cover plates around the gas

tube and the ignition pen (see fig. 9).

• Remove the cover plates.

• Unscrew the brass union of the gas tube under the

ignition pen.

• Unscrew the brass union of the gas tube on the gas

control valve.

!Caution Make sure the thread reducing bushes on the

gas control valve do not rotate as well.

• Remove the gas tube from the appliance.

• Take out the 4 screws of the burner; see fig 13.

• Carefully remove the burner tube from the combustion

chamber.

• Place the new burner in reverse order.

!Caution Only for Power Flue 12kW and 16 kW:

- Place the pin at the end of the burner tube
on the V; see fig. 14;

- Position the burner tube in such a way, that
the pin drops in the hole.

• Check supply pressure.

• Check the burner pressure and, if necessary, adjust it as

described in section 7.2

9.2.2 Electrode pen

• Remove the ignition cap.

• Remove the sealing surrounding the electrode pen

• Take out the 4 screws of the cover plates around the gas
tube and the electrode pen (see fig. 9).

• Remove the cover plates.

• Take out the 2 screws of the mounting plate.

• Remove the electrode pen.

• Place the new electrode pen in reverse order

9.2.3 Automatic ignition sequence

• Take out the 2 screws of the cover on the automatic
ignition sequence (see fig. 15)
(the upper screw is used to fix the automatic burner to
the gas control valve; the lower screw fixes the cover)

• Remove the cover.

• Pull the 2 connectors out of the automatic ignition
sequence (see fig. 16).

INSTRUCTIONS FOR INSTALLATION

Fig. 12

Fig. 13

Fig. 14

14

• Pull out the ignition cable.

• Remove the automatic ignition sequence by pulling it to
the front side of the appliance.

• Place the new automatic ignition sequence in reverse
order.

!Caution - Place the automatic ignition sequence in such

a way, that the connector is connected again;

- Prevent wiring from getting stuck under the

cover.

9.2.4 Gas control valve

• Remove the automatic ignition sequence, as described
above in section 9.2.3.

• Remove the ignition cap.

• Remove the sealing surrounding the electrode pen

• Take out the 4 screws of the cover plates around the gas
tube and the electrode pen (see fig. 9).

• Remove the cover plates.

• Unscrew the brass union of the gas tube under the
electrode pen.

• Unscrew the brass union of the gas tube on the gas
control valve.

• Disconnect the earth wire.

• Remove the gas control valve.

• Disconnect the thread reducing bushes (top and bottom
side) from the gas control valve.

• Connect the thread reducing bushes to the new gas
control valve.

!Caution Use new sealing rings when mounting the

thread reducing bushes.

• Place the gas control valve in opposite order.

• Adjust the burner pressure as described in section 7.2

• Perform a final check as described in chapter 7

9.2.5 Convection fan

• On the appliance, disconnect the electric wiring of the
convection fan (see fig. 17).

• Take out the screws from the lower cover plate at the
front of the appliance.

• Remove this plate.

• Remove the electric cable from the cable clips.

• Take out the 4 socket cap screws that are used to mount
the fan (see fig. 18).

• Remove the fan.

• Place the new fan in reverse order

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INSTRUCTIONS FOR INSTALLATION

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Fig. 15

Fig. 16

Fig. 17

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9.2.6 Combustion fan

• Take out the clamp of the flexible flue gas discharge tube.

• Remove the flexible flue gas discharge tube.

• Take out the clamp that is used to mount the venturi tube
on the fan.

• Remove the venturi tube.

• Disconnect the air hose from the fan (positive measuring
point).

• Disconnect the electric wiring from the fan.

• Take out the 4 screws of the assembly plate (see fig. 6).

• Remove the fan assembly.

• Take out the 3 screws connecting the fan to the assembly
plate.

• Remove the fan

• Place the new fan in reverse order.

!Caution - Using new gaskets;

- Fix the venturi tube using heat-resistant

sealant and the clamp;

- Also fix the flexible discharge tube using the

sealant and the clamp;

- Make sure that the wiring is lying free from

the convection box and the fan house.

9.2.7 Temperature limit switch

(maximum thermostat)

• Disconnect the fast-on connections of the electrical
connection.

• Take out the 2 screws of the mounting plate (see fig. 19 of
Power Flue 12/16kW).

!Tip Only for Power Flue 7kW:

- Take out the 2 screws on the control panel

(see fig. 11);

- Slightly lift the panel;

- Take out the upper screw of the mounting

plate.

• Remove the switch.

• Place the new switch in reverse order.

!Caution For the Power Flue 16kW, 2 distance bushes

and a gasket are used.

9.2.8 Convection fan switch

• Disconnect the fast-on connections of the electrical
connection.

• Take out the 2 screws on the mounting plate (see fig. 19);

!Tip Only for Power Flue 7kW:

- Take out the 2 screws on the control panel

(see fig. 11);

- Slightly lift the panel;

- Take out the upper screw of the mounting

plate.

• Remove the switch.

• Place the new switch in reverse order.

9.2.9 Thermostat

• Take out the 2 screws on the control panel (see fig. 11).

• Slightly lift the control panel.

• Remove the thermostat.

• Disconnect the wiring.

• Place the new thermostat in reverse order.

INSTRUCTIONS FOR INSTALLATION

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Fig. 18

Fig. 19

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INSTRUCTIONS FOR INSTALLATION

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9.2.10 NTC temperature sensor

The temperature sensor is located in the convection air

inlet, at the filter on the right side of the appliance.

• Take out the 2 screws on the control panel.

• Lift the control panel and slide it slightly to the side.

• Disconnect the wires of the temperature sensor on the
thermostat.

• Remove the temperature sensor.

• Place the new temperature sensor in reverse order.

9.2.11 Air pressure switch

• Take out the screws.

!Tip You can reach the screws through the

convection air inlet on the right side

• Disconnect the hoses.

• Disconnect the wiring.

!Caution - Remember how the hoses are connected;

- Remember how the wiring is connected;

- The setpoint of the air pressure switch

depends on the type of appliance.

• Remove the air pressure switch.

• Place the new air pressure switch in reverse order.

10. Delivery

You must explain the user how to operate the appliance.

You should instruct the user on using the appliance for
the first time, its operation and annual maintenance.

Caution - Tell the user to close the gas tap

immediately and switch off the all-pole
switch in case of malfunctions/bad
performance and contact the installer in
order to prevent dangerous situations;

- Indicate the location of the gas tap;

- Indicate the location of the all-pole switch.

• Instruct the user on how the appliance works.

• Remind the user that the appliance requires annual
maintenance.

• Give the user manual and installation manual to the user
(the installation manual should be kept near the appliance).

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TROUBLESHOOTING GUIDE

1. Set clock properly

2. Set thermostat correctly

3. Set the switch in the correct position

4. Switch on the all-pole switch

5. - First find the cause of the defective fuse
and remedy it

- Then replace the main fuse

6. - First find the cause of the defective fuse
and remedy it

- Then replace the appliance fuse

1. Clean filters

2. Check burner pressure;

If necessary, correct burner pressure

3. Check convection air circuit:

If necessary, unblock it.

4. Clean fan

5. Replace fan

1. Check gas supply

If necessary, repair gas supply

1. Replace the ignition cable

2. Replace the electrode pen

3. Check connections air pressure switch:

- Connect properly

- If necessary, replace the air pressure

switch

4. Replace fan

5. Unblock

6. Check the electric connections:

improve connections where necessary
Note: the automatic burner is phase
sensitive

7. Gap between electrode and burner should

be between 5 and 6 mm

7. Replace automatic burner

1. Set summer / winter switch to summer

position.
If convection fan switches on:

- Check and, if necessary, replace the

wiring

- If necessary, replace switch

2. Set summer / winter switch to summer

position
Convection fan also does not work in
summer position:

- Check and, if necessary, replace the

wiring

- If necessary, replace the fan

1. Check if life and neurtal are in the correct

possition, if necessary change

2. Check flue and terminal, if necessary

remove blockage

A. Appliance does not react/work

B. Temperature limit switch

(clixon 120 ºC) interferes

C. No gas

D. No ignition (spark)

E. Convection fan does not switch on

F. Burner ignite, but goes out in a few

seconds

1. Clock not set properly

2. Thermostat set incorrectly

3. Summer / winter switch in incorrect
position

4. All-pole switch switched off

5. Main fuse defective

6. Appliance fuse defective (on control
panel)

1. Very contaminated filters

2. Appliance overloaded

3. Convection air circuit blocked

4. Convection fan very dirty

5. Convection fan defective

1. Gas supply interrupted/stopped.

1. Ignition cable damaged

2. Electrode pen corroded

3. Air pressure switch does not function

4. Combustion gas fan very dirty

5. Flue gas discharge / combustion air supply
system blocked

6. Electric connections incorrect

7. Gap electrode / burner to small or to big

7. Automatic burner defective

1. Convection fan switch defective

2. Convection fan defective

1. Reversed plolarity

2. Partial or complete flue blockage

OBSERVED PROBLEM: POSSIBLE CAUSE: REMEDY:

11. MALFUNCTIONS

In the following table you will find an overview of malfunctions that might occur, the possible causes and the remedies.

Table 3 diagnosis of malfunctions

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APPENDIX 1

Appendix 1 Parts included with the delivery

In the following table you can find the parts that are supplied with the appliance.

PART K7 K12 K16 ORDERNR.

Installation manual 1x 1x 1x 95762501
User manual 1x 1x 1x 95762401
Sealant 1x 1x 1x 907918
Standard hose clamp 50-70mm 2x 2x 2x 806656
Hose clamp (64-67mm) 2x 2x 2x 806763
Screws 8x 8x 8x 519456
Plugs 8x 8x 8x 929964
Washers 2x 2x 2x 525015
Exhaust hose I=600 St. Steel 1x 1x 1x 24124
Air inlet hose L=600mm Alu 1x 1x 1x 24126
Cable gland 1x 1x 1x 806695
Wall-terminal 1x 1x 1x 24115
Manifold 1x 1x 1x 806643
Restriction only k12 n.a 1x n.a. 806646
Restriction only k16 n.a. n.a. 1x 806647
Set of 2 lock keys 1x 1x 1x 806511
Silicon plug 1x 1x 1x 806818

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