Exodraft RHGC User manual

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Chimney Fan
RHGC
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Your energy. Optimized.
Chimney Fan | RHGC
Content
Product information 7
Scope of supply 7
Accessories and spare parts 7
Technical specications 8
Precautions and user instructions 11
Mechanical installation 12
Minimum distance 12
Wall Mounting 13
Installation onto a steel chimney 14
Electrical installation 16
Isolation switch 16
Startup and conguration 17
System testing 17
Operating the replace using the EFC21 controller 17
Testing ue gas extraction and the pressure switch setting 18
Maintenance and troubleshooting 19
Care and cleaning 19
Troubleshooting 20
UK Conformity Assessed 21
Declaration of Conformity 22

Disposal
Electrical and electronic equipment (EEE) often contain materials, components and substances
that may harm the environment or be hazardous to your health. Products (WEEE) marked with
the ‘crossed-out wheeled bin’ symbol should be disposed of separately from other waste at
the end of its life. Though legislation may differ from country to country we strongly advise
that electrical and electronic waste is separated from other waste and disposed of according to
national legislation to protect the environment and personnel that may come into contact with
waste.
How to use this manual
This manual has been prepared based on the specific product and
contains relevant technical information and installations guides.
Accessories and spare parts are not covered by this manual.
Please refer to the individual manuals of these components.
This installation manual does not contain any system design documentation.
Failure to observe instructions marked with a danger symbol
may result in personal injury and/or damage to the product.
Errors and omissions excepted.

Disposal
Electrical and electronic equipment (EEE) often contain materials, components and substances
that may harm the environment or be hazardous to your health. Products (WEEE) marked with
the ‘crossed-out wheeled bin’ symbol should be disposed of separately from other waste at
the end of its life. Though legislation may differ from country to country we strongly advise
that electrical and electronic waste is separated from other waste and disposed of according to
national legislation to protect the environment and personnel that may come into contact with
waste.
How to use this manual
This manual has been prepared based on the specific product and
contains relevant technical information and installations guides.
Accessories and spare parts are not covered by this manual.
Please refer to the individual manuals of these components.
This installation manual does not contain any system design documentation.
Failure to observe instructions marked with a danger symbol
may result in personal injury and/or damage to the product.
Errors and omissions excepted.
Symbols
The following symbols may be used in the manual
to draw attention to danger or risk of personal
injury or damage to the product.
General prohibition
Failure to observe instructions marked with the prohibited
symbol may result in extreme danger or serious personal injury.
General warning
Failure to observe instructions marked with a danger symbol
may result in personal injury and/or damage to the product.
General attention
Marks a dangerous situation that, in the worst-case scenario,
can cause serious personal injury or significant damage to the product.
Electricity hazard/High Voltage
Marks a situation in which caution is advised due to the risk of high voltage electric
shock which can cause serious personal injury or significant damage to the product.
Connect an earth terminal to the ground
Failure to observe instructions marked with a danger symbol
may result in personal injury and/or damage to the product.
Permitted and approved
Permitted and approved method of installation.
Prohibited and not approved
Prohibited and not approved method of installation.

Warning
To minimise the risk of fire, electric shock, personal injury
and/or damage to the product please observe the following:
• Please always read the manual and only use the product in accordance with the
manufacturer’s instructions. If in doubt, contact one of the Exodraft specialized dealers.
• All installations must be carried out by properly qualifi ed personnel in accordance with
national legislation and regulations.
• This product must be earthed. Get assistance from an qualifi ed electrician when in doubt.
• The chimney fan must always remain switched on when the fireplace is in use.
• Ensure that the chimney has been swept before mounting the fan to avoid chimney fires.
• Prior to servicing the product, disconnect the power and ensure that it cannot accidentally
be reconnected.
• Exodraft always recommends the use of a smoke alarm when a solid fuel fireplace is
installed.
• If the Exodraft fan system has been designed for solid fuel/multi fuel installations, please
ensure that the design meets the requirements of BS EN15287-1. If this cannot be achie-
ved, a smoke alarm must be installed in the same room as the heat appliance.
• Note! Fans serving biomass boilers must be cleaned more often due to extensive residue/
soot building. It is essential that a regular inspection and cleaning schedule is implemen-
ted, especially in the early days of usage, to experience how often regular inspections and
cleaning should be carried out.
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3112008_RHGC_UK
Warning
To minimise the risk of fire, electric shock, personal injury
and/or damage to the product please observe the following:
• Please always read the manual and only use the product in accordance with the
manufacturer’s instructions. If in doubt, contact one of the Exodraft specialized dealers.
• All installations must be carried out by properly qualifi ed personnel in accordance with
national legislation and regulations.
• This product must be earthed. Get assistance from an qualifi ed electrician when in doubt.
• The chimney fan must always remain switched on when the fireplace is in use.
• Ensure that the chimney has been swept before mounting the fan to avoid chimney fires.
• Prior to servicing the product, disconnect the power and ensure that it cannot accidentally
be reconnected.
• Exodraft always recommends the use of a smoke alarm when a solid fuel fireplace is
installed.
• If the Exodraft fan system has been designed for solid fuel/multi fuel installations, please
ensure that the design meets the requirements of BS EN15287-1. If this cannot be achie-
ved, a smoke alarm must be installed in the same room as the heat appliance.
• Note! Fans serving biomass boilers must be cleaned more often due to extensive residue/
soot building. It is essential that a regular inspection and cleaning schedule is implemen-
ted, especially in the early days of usage, to experience how often regular inspections and
cleaning should be carried out.
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Product information
The Exodraft RHGC chimney fan provides reliable chimney draught for closed natural gas and
LPG replaces connected to a concentric ue gas system with a maximum burner output <13 kW.
For output exceeding 13 kW, please contact Exodraft.
The fan is part of an Exodraft system and should be connected to an EFC21 Exodraft controller for
optimal effect.
Incorrect ring may result in problems with soot, chimney res, etc. which might damage the product.
Please check out this site for advice about lighting and maintaining a re:
www.exodraft.com
Scope of supply
• Exodraft RHGC chimney fan
• Packet with location brackets and nuts
• Installation manual and user instructions
Accessories and spare parts
The table below shows the accessories and spare parts available for the RHGC-models.
Accessories* Spare parts
Motors
Impeller
PDS - Pressure differential switch
*The RHGC does not have accessories. For more details contact your Exodraft dealer.

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Warranty
All Exodraft products are covered by a 2-year guarantee as per European consumer rights legislation. For
some countries an extended period of guarantee may apply depending on either national legislation or
other clearly stipulated conditions. Customer complaints must be handled by a specialised dealer or
wholesaler (preferably where the Exodraft product has been bought originally). An updated list of Exodraft
specialised dealers can be found on our website for the country in question.
Exodraft products must always be installed by properly qualied personnel. Exodraft reserves the right to
change these guidelines without prior notice.
The warranty and liability does not cover instances regarding personal injury or damage to property or the
product that can be ascribed to one or more of the following causes:
• Failure to follow this installation and operation manual
• Incorrect installation, start-up, maintenance or servicing
• Improper repairs
• Unauthorised structural modications made to the product
• Installation of additional components that have not been tested/approved with the product
• Any damage resulting from continued use of the product despite an evident defect
• Failure to use original spareparts and accessories
• Failure to use the product as intended
• Exceeding or failure to meet the limit values in the technical data
• Force majeure
Technical specications
The RHGC fan is designed for horizontal discharge. It is available in one size.
This chimney fan is made of cast aluminium with a forwards-curved centrifugal impeller made of
galvanised steel.
Chimney fan Centrifugal impeller
RHGC160-41 80/125
RHGC160-41 100/150 Galvanised steel impeller
The chimney fan has a built-in fail-safe system consisting of a pressure differential switch (PDS) and two
pressure sensors. The pressure switch ensures that the airow is correct while the replace is in use.
The RHGC fan is designed to operate with a maximum ue gas temperature of 200 °C.
Ambient temperature: min. -20 °C to max. +40 °C.

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Technical data
C
D
A
B
Model Motor specications Weight Dimension [mm]
rpm V Amp kW* kg AB [Ø] C [Ø] D [Ø]
RHGC160-41 80/125 1400 1 x 230 0.40 0.09 10 227.50 290 323 80
RHGC160-41 100/150 1400 1 x 230 0.40 0.09 10 227.50 290 323 80
*Power consumption at ambient temperature of 20 °C
• RPM is innitely adjustable for all 1x230 V motors
• The motor is overload protected
• Motor protection class IP 54, Insulation class F

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Construction and components
1 Motor housing
2 Base plate
3Motor
4 Cooling panels
5Pressure switch
6 Pressure sensors
7 Armoured cable and connecting cable
8 Rawlplugs, screws and safety wire
3
5
1
4
2
6
7
RS og RSHG
8

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Precautions and user instructions
These instructions, applicable standards and relevant safety procedures from the manufacturer must be
followed and at the same time the ofcial provisions in force in the country, where the product is installed,
must be observed.
Support system
Prior to installation of a chimney fan, it must be determined if the chimney can safely carry the weight of the
chimney fan.
A steel chimney should be well supported at the roof penetration point. If the chimney extends high above
the roof, the chimney and the fan should be secured. The manufacturer´s instructions must be followed.
System type
Gas replaces and individual gas-red boilers used in private dwellings normally operate in a relatively
stable environment, where no major pressure uctuations occur. However, to secure an optimal use of the
Exodraft system speed adjustments and adjustment of air intakes are required depending on the weather
outside and on the stage of the ring process.
The fan must be connected to an Exodraft control type EFC21.
Chimney length
The minimum concentric chimney length between the replace and the fan is 5 m.
The maximum guaranteed concentric chimney length between the replace and the fan is 60 m and 15 pcs
90° elbows.
Minimum diameter of the chimney
Chimney fan min. inside diameter [mm] min. outside diameter [mm]
RHGC160-41 80/125 80 125
RHGC160-41 100/150 100 150
Precautions
Be aware that it
• must be installed on top of the chimney
• can be mounted on steel as well as on wall
• must be mounted with the approved Exodraft accessories
• must be accessible for service and maintenance from the roof or from a ladder/cherry picker
• the distance to ammable materials must be at least 500 mm
• the isolation switch must be easily accessible
ATTENTION! It is always recommended to install a
smoke alarm in connection with a wood red installation.

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Mechanical installation
Exodraft products must always be installed by properly qualied personnel and according to the
manufacturer’s instructions.
Gas appliances should be checked for safety once a year by a installer registered in the Gas Safe Register.
Details of local installers can be obtained by accessing the website at www.gassaferegister.co.uk
Positioning of the chimney fan
The chimney fan can be mounted horizontally or vertically. Be aware of national law and building
regulations!
Minimum distance
The minimum distance to ammable materials must be at least 500 mm (national legislation must be
observed)!
Min. distance according
to national legislation!

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Wall Mounting
If the fan is to be mounted on wall, please don’t mount directly on a timber wall or any other inammable
wall. See the installation guide below.
Step Action Illustration
1
When mounted on a wall, the name plate MUST
face upwards.
It is of utmost importance that the RHGC is
positioned correctly or the ow measuring system
will not work.
2
Place the fan on the concentric chimney.
Mark off the holes of the base plate on the wall
when the fan is positioned correctly.
3
Remove fan assembly, drill holes in the wall and
insert rawlplugs.
Apply mastic to the underside of the ange and
fasten fan assembly securely to the wall.

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Installation onto a steel chimney
See the installation guide below.
Step Action Illustration
1Mount the chimney fan directly on the concentric
steel chimney.

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3112008_RHGC_UK
2
Attach the safety wire to the chimney. Use the
screw and rawl plug provided in the brickwork of
the chimney or the self-cutting screw if working
on a steel chimney. Then t the wire through
the hole in the bottom section and into the wire
clamp.
Gently tighten the safety wire, and crimp the wire
clamp so that the fan is held safely in place when
opened for servicing or cleaning purposes.
The isolation switch (supplied as extra) should be
tted onto the side of the chimney, so it is easily
accessible when servicing the fan. The armoured
cable with connecting cable should be mounted
into the underside of the isolator and up into the
switch through the coupling.
RS og RSHG
3
Prior to use check that:
• The fan is closed and the fastening screws/
wing screws tightened
• The safety wire is taut and the wire clamp
crimped
• The coupling nut on the armoured cable is
tightened
• The safety wire is securely attached to the
chimney
• That the user is aware that the fan must
always be switched on whenever the replace
or boiler is in use
RS og RSHG
• RHGC should not be mounted directly on a timber wall or any other inammable wall.
• When the fan is installed on a timber framed house, the recommendations of Institute of Gas Engineers
publication UP-7 ”Gas installations in timber framed buildings” should be observed.
• The RHGC fan should not be installed in connection with solid fuel appliances.
• On external wall, the fan unit should be located so it is minimally exposed to prevailing wind
conditions.
• The fan unit should be situated in a place which alows the exhaust gasses to evacuate to surrrounding
air.
• Due to the risk of hot surfaces, it is required, according to EN294, that a terminal guard is used on the
external wall where the fan is installed in frequented areas below 2.7 m (9 ft) from the ground level.
ATTENTION!

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Electrical installation
The fan and motor specications are provided on the fan’s type plate. All the single-phased fan models are
adjustable in speed.
Wires are to be connected in accordance the wiring diagram. For further details, please see guidelines for
the Exodraft control units. All Exodraft fans require extra safeguards in accordance with current power
regulations.
Any lightning conductor connected to the fan must respect current applicable national legislation.
Exodraft motor Grundfos motor
87 6 5 4 321
AUX
MAIN
t°
P
BN
BK
BU
4
5
3
1
2
1
2
3
4
NO
NC
C
N
L1 5
YEGN
POWER SUPPLY
1 x 230 V ~ 50 Hz
6 x 0,75
BK
BN
BU
3 x 0,75
YEGN
Isolation switch
In accordance with the provisions of the EU Machinery Directive*, a chimney fan must always have an
isolation switch tted. The isolation switch must comply with national wiring standards.
The isolation switch must be ordered separately, as it is not part of the standard Exodraft chimney fan
delivery.
*Please refer to Machinery Directive (2006/42/EF/-EEC/-EWG/-CEE) – Appendix 1item 1.6.3 “Separation of the sources of energy.”

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3112008_RHGC_UK
Startup and conguration
System testing
Before any adjustments are made to the system, please follow these procedures:
Turn the chimney fan ON and make sure that it is turning. Increase and decrease the speed of the fan by
adjusting the speed control to make sure the fan is operating properly.
After system testing, Exodraft recommends igniting your replace or stove. Follow the guide below for
correct lighting and use of the chimney fan.
Operating the replace using the EFC21 controller
B
A
Press the ON/OFF button
• The operating LED (B) will ash GREEN until the correct chimney draught is conrmed.
If it ashes YELLOW, then the Air inlet must be opened.
The operating LED will then become GREEN and the replace can be lit.
• To stop the fan press the ON/OFF (A) button.
External ON/OFF switch
• The ON/OFF (A) switch can be used to start, stop and reset the controller.
• If the external ON/OFF (A) switch is used, it has priority over the control panel and the remote control
Note! The switch must be in the OFF position before the controller can be re-started.
DANGER! Check that the heating appliance (water heater, furnace, etc.) is
working properly after the chimney fan has been switched on. Make sure that
no ue gases are spilling out as this can lead to carbon monoxide poisoning!

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Testing ue gas extraction and the pressure switch setting
This test must be carried out to ensure that the pressure switch (PDS) and the speed of the chimney fan
have been adjusted correctly for the replace in question. Prior to the test, the required speed of the fan
must be determined and adjusted according to replace manufacturer instruction and appropriate Exodraft
fan control installation guides. To set the PDS, open the fan cover.
Start the fan and let it run as described in the fan control manual.
Test procedure
• Set the pressure switch to a minimum by turning anti-clockwise.
• Slowly increase the pressure switch setting until it cuts out (you will hear a click) or observe the
cut-out on the fan control.
• Make a note of the pressure switch setting at cut-off.
• Set the pressure switch to 10 Pa below the previously noted cut-off value.
After it has run for ten minutes, turn the isolation switch off and the fail-safe function will be checked. The
replace should cut out 15 seconds after the pressure switch has cut off. Remember to switch the isolation
switch back on.
PDS top cover
WARNING! Do not open the top section unless the
power to the chimney fan has been disconnected!

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3112008_RHGC_UK
Maintenance and troubleshooting
Care and cleaning
It is extremely important to keep the ue clean from creosote and deposits as soot is the major cause of
chimney res. The top of the fan is hinged and can be opened to ensure easy cleaning of the fan.
Cleaning intervals depend on the use of the replace. The more the appliance is used, the more often the
chimney ue must be cleaned. If a replace is used regularly (2-3 times a week), a semi-annual cleaning of
the chimney and the fan may be required. If used on a daily basis shorter intervals may apply.
No matter how often the fan is used, the fan must be inspected and cleaned at least once a year – for
instance when the chimney is inspected and cleaned by your chimney sweep. The chimney should always
be cleaned by a trained professional chimney sweep.
Gas appliances should be checked for safety once a year by a installer registered in the Gas Safe
register.
Note!
The chimney fan can be used at temperatures of up to 200 °C. The motor has special ball bearings that are
sealed, lifetime lubricated and maintenance-free.
Cleaning procedure
Step Action
1
Use the isolation switch to switch off the
power to the fan and make sure the fan
doesn’t rotate.
2Loosen the screw and open the top section of
the fan.
3Dismantle the chimney fan as shown here.
4
During this service procedure, all soot depo-
sits must be removed from the centrifugal
impeller and the sensors.
5Be very careful not to damage the ue gas
measuring system.
WARNING! Do not open the motor housing unless
the power to the chimney fan has been disconnected!
WARNING! The ow sensors must not be bent or
moved, as this might affect their performance.

UK Conformity Assessed
Exodraft a/s
Industrivej 10
DK-5550 Langeskov
Hereby declares that the following products:
Were manufactured in conformity with the provisions of the following regulations:
The Supply of Machinery (Safety) Regulations 2008
Electrical Equipment (Safety) Regulations 2016
Electromagnetic Compatibility Regulations 2016
Langeskov, 01-11-2022
Managing Director
Anders Haugaard
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Troubleshooting
Observation Problem Solution
There is no power
to the fan
The isolation switch may be on off
The speed control is turned off
Loose electrical connection
Check isolation switch
Turn speed control on
Check wiring and correct problem
There is power to the fan
but it is not working
Loose electrical connections
The voltage setting is too low
Check wiring and correct problems
with connections. Pay special attention
to the wiring in the junction box
Increase the speed setting
There is power to the fan
but it hums and does not turn
The capacitor may be worn out
Soot makes the axial vane/impeller stick
Check capacitor and replace if necessary
Clean the fan
The fan seems to work ne,
but there is not enough draught
The fan may be undersized
The capacitor may be worn out
The ue is damaged/blocked
Replace with a larger fan
Check capacitor and replace if necessary
Check the ue (chimney sweep)
The fan vibrates
The motor shaft may be bent
The fan needs cleaning
Incorrect installation
Replace motor
Clean the fan
Check installation guide in this manual
There is airow noise
from the replace opening The fan is running too fast Reduce the fan speed
Mechanical noise can be heard
Soot or tar may impair the
axial vane/impeller
Motor bearings may be worn
out/over-heated
Incorrect installation
Clean the axial vane/impeller
Replace bearings
Check installation guide in this manual