solid fuel heat exchanger installation &

HEATING SOLUTIONS
SOLID FUEL HEAT EXCHANGER
INSTALLATION & SERVICE MANUAL
WORKING TOWARDS A GREENER PLANET
INDEX
Page
1.0 Introduction.................................................................................................................... 2
2.0
3.0
Important Safety Notes ............................................................................................... 2
System Installation .........................................................................................................
3.1 System Location ......................................................................................................
3.2 Plumbing the Solid Fuel Heat Exchanger .......................................................
3.3 System Heat Exchange Process .........................................................................
2
3
3
6
4.0 Hot Water Cylinder Requirements .......................................................................... 7
5.0 Technical Data ................................................................................................................ 7
6.0 Commissioning .............................................................................................................. 7
7.0 Terms & Conditions of Warranty ............................................................................... 8
1
1.0INTRODUCTION
We would like to thank you for purchasing a Firebird Solid Fuel Heat Exchanger, hereinafter
referred to as the SFHE. This instruction manual is for reference and installation guidance by
qualified engineers or installers, who are HETAS approved, or equivalent, in solid fuel
heating appliances.
You should ensure that all installation, servicing and commissioning works are carried out
by a competent, qualified engineer. It should be noted that it is the responsibility of the
installer/householder to ensure that this product is properly installed. Failure to do so may
invalidate the warranty.
Please read this manual carefully prior to installation of the SFHE.
2.0 IMPORTANT SAFETY NOTES
• This sfhe must be open vented on the stove side.
• Please ensure that the existing pressurised heating system is installed to all regulations
and operating accordingly.
• Ensure that BS 8303, Code of practice for installation of domestic heating and cooking
appliances burning solid mineral fuel, is adhered to at all times.
• Ensure the following codes and standards are adhered to;
-
BS EN 14336:2004 Heating systems in buildings. Installation and commissioning of water based heating systems.
-
BS EN 12828:2012 + A1:2014 Heating systems in buildings. Design of water based heating systems.
-
BS EN 12831:2003 Heating systems in buildings. Method of calculation of the design heat load.
• Installation must conform to Building Regulations at all times.
3.0 SYSTEM INSTALLATION
The SFHE can be installed to:
a) Link open vented and pressurised heating systems.
b) Avoid relocation of the domestic hot water tank,
hereinafter referred to as the DHW.
c) Avoid awkward pipe installations.
2
Additional parts required for installation of the SFHE:
• 2 x circulation pumps.
• 2 x pipe thermostats.
• 1 x 1” injector T.
• 1 x spring loaded non-return valve.
To obtain the best results we recommend that the unit be fitted using the schematic
provided. This will ensure that it will work correctly in normal conditions and in the
event of power failure to the unit. This unit should be pumped on the pressurised
circuit and this pump is controlled by a thermostat fitted on the return pipe from the
SFHE to the stove.
3.1
System Location
The SFHE must be installed in an upright position. The unit must be securely fixed to a solid
wall or floor using the fixing brackets supplied.
Care should also be taken to ensure that sufficient space is allowed around the unit to
accommodate installation of pipe work and necessary pumps.
The SFHE must be installed 1.5m or more above the height of the stove to enable gravity
circulation. In addition allow a minimum of 3m of 1”/28mm copper pipe work continuously
rising from the stove to the feed/expansion tank. Typical location for the unit is in the attic
space.
3.2
Plumbing the SFHE
See schematic on page 5.
On the vented circuit, under normal conditions, the hot water from the stove activates
the pump control thermostat (Thermostat 1 on schematic) on the flow pipe, which in
turns activates the pump (Pump 1 on schematic) on the return pipe. This maintains the
temperature of the circuit, which improves the efficiency of the stove and the heat
transfer rate of the SFHE.
When the SFHE has achieved the required temperature, the thermostat on the return pipe
to the stove activates the pump on the pressurised circuit. This ensures a more efficient
transfer of heat to the pressurised system as it only transfers when the unit has reached
the temperature set point. This heat is then transferred around the pressurised/central
heating circuit.
The Flow pipe from the heat exchanger to the existing pressurised system should be
connected directly to the main/principal flow pipe of the existing pressurised circuit.
3
The Return pipe to the heat exchanger from the existing pressurised system should be
connected directly to the main/principal return pipe of the existing pressurised circuit.
The flow/return from/to the heat exchanger must be pumped.
Best practise is to fit a thermostat to your DHW cylinder, which will divert the heat to the
heating system when your DHW cylinder is satisfied. This will prevent the DHW tank from
over heating.
A pressure relief valve must be installed on the pressurised side of the unit. It cannot be
isolated from the pressurised circuit.
Best practice is to connect a heat leak radiator from the vertical flow and return pipe work
of the stove as per schematic. It should be connected on the expansion pipe above the
level of the SFHE. The radiator should be 10% of the output of the stove. e.g. 12kW stove
should have a 1.2kW radiator. The heat leak radiator should have no valves, TRV, or any item
which would inhibit the flow to the radiator.
It is best practice to fit a bypass around the pump on the vented circuit. In the event of an
interruption to the power supply, the SFHE will circulate via gravity around the pump,
avoiding a build up of pressure. An injector T must be fitted between the pump and the
stove on the return side as per schematic. This will guide the water to the stove and prevent
it circulating around the bypass. If the pump is not operating, the non-return valve prevents
the flow of water through the pump and instead, takes the route around the bypass.
Only 1” or 28mm copper pipe may be used to connect the SFHE to the stove. To ensure the
optimum transfer of heat, the SFHE should be located between 1.5m and 7m from the
stove (in one direction i.e. 14m in total). The open/vented system supply pipe must be at
least ½” or 15mm copper pipe.
Plate Heat Exchanger
The SFHE includes a plate heat exchanger. This unit requires clean system water to operate
efficiently. The installer must ensure that the solid fuel and heat system circuits are clean.
Both systems should be power flushed in accordance with BS 7593. A proprietary inhibitor
should be added on commissioning. We recommend a permanent magnetic filtration filter
to be fitted on the return pipe work after the last radiator on the central heating system.
This will maintain maximum operational efficiency and protect the unit from damaging
long term effects of “black iron sludge”. The magnetic filter should be installed at all times
according to the manufacturing instructions.
To comply with Building Regulations, in particular Part L, all solid fuel heating units
must be linked directly to an open vented system and must have an open gravity
circuit.
4
Schematic Solid Fuel Heat Exchanger
Heat leak
/gravity
radiator
Open/vented
system supply
pipe
B
A: Minimum = 1.5m
B: Minimum = 1m
Air vent
Flow pipe to existing
pressurised system
Return pipe from
existing pressurised
system
Thermostat 1
A
Spring loaded non return valve
Pump 1
Injector T
NOTE: The Firebird SFHE has a max
operating pressure of 3 bar.
5
3.3
System Heat Exchange Process
The diagram below highlights the layout of the Firebird Solid Fuel Heat Exchanger. It can be
fitted with pipe work on the left or on the right hand side. Care must be taken to ensure
the pipe work is connected in accordance with the layout highlighted.
Right side view
684
734
717
Front view
680
575
Left side view
240
56
216
250
Ø 14
85
145
530
+5
568 - 0
190
208
Top view
Standard position
Rotated position
The bottom bracket can be
turned upside down when the
tank is hung on the wall.
Top and bottom brackets
can be rotated by 180°C
if sockets need to be
on the left hand side.
This panel can be removed to get
full access to the heat exchanger.
Air vent
Stove/open system flow
Sealed system flow
Sealed system return
Drain cock
Stove/open system return
6
4.0 Hot water Cylinder Requirements
Regulations and manufacturer’s installation criteria must be met at all times on the hot
water system. Particular reference to Part G (NI and UK regulations) must be met.
5.0 Technical Data
Dimensions:
528mm length x 204mm width x 680mm height.
Maximum System Pressure:
3 bar.
Temperature Operating Range: Max. temperature 80˚C.
System weight:70kg.
Transfer Capacity:
Only connect one solid fuel appliance to this unit,
with max. heat output to water of 12kW.
6.0COMMISSIONING
1) Ensure both the solid fuel and pressurised system side have been flushed and cleaned
to BS 7593 standards and a proprietary inhibitor has been added to both sides of the
system.
2) Fill the system and check all joints on both sides of the system, ensuring no leaks.
3) Check the header tank. Ensure there is water in the tank and the ball valve is operating
freely. Check the colour of the water in the tank and sediment at the base of the tank.
Clean if necessary. Check the level of inhibitor at both sides of the system. Refill/top up if
necessary.
4) Ensure all air is removed from both sides of the system.
5) Ensure the pressure relief valve (on pressurised circuit) and air vent are working.
6) Light the stove and ensure both pumps work in conjunction with their thermostats.
7) Ensure the gravity/heat leak radiator is free from air and is in a locked open position.
7
7.0 TERMS & CONDITIONS OF WARRANTY
• This Firebird Solid Fuel Heat Exchanger is designed and manufactured to give many years of trouble free service. We provide a comprehensive warranty of 5 years on the
unit. The warranty will only apply if the following terms, laid out in the warranty, are
adhered to:
(a) All claims under the warranty must be received within 5 years from the date of
installation. The signed and completed commissioning card must be returned to
Firebird within 10 days of installation
(b)The plate heat exchanger component is guaranteed for a period of 2 years, but only
when both the solid fuel and system side have been flushed and cleaned to BS 7593
standards and a proprietary inhibitor has been added to both sides of the system.
(c) Installation of the SFHE must be in accordance with this manual and all relevant
standards and codes of practice.
(d)The SFHE must be commissioned by a competent person(s) and as set out in this
instruction manual.
(e) Firebird can accept no liability in respect of any defect arising from incorrect
installation, negligence, unfair wear and tear, misuse, alteration or repair by
unqualified persons.
(g)The warranty extends to reasonable labour costs except under clause (a), where any
valid claim made after 3 years will not include labour costs.
(h)Firebird’s prior authorisation must be obtained before examination or repair of the
appliance takes place.
(i) Firebird will examine all claims made under the warranty and for any claims deemed
invalid, costs incurred will be borne by the householder.
(j) Any defective part removed under any or all of the warranties MUST be returned to
Firebird.
• This system is designed to be open vented on one side, namely the solid fuel appliance
side. The opposing side can be pressurised. Note all regulations with respect to solid
fuel and pressurised heating systems must be adhered to.
THE STATUTORY RIGHTS OF THE HOUSEHOLDER
ARE NOT AFFECTED BY THIS WARRANTY
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9
cut along dotted line
HEATING SOLUTIONS
Please complete the following details to register
your Firebird Solid Fuel Heat Exchanger.
Warranty / Commissioning Card
HOUSEHOLDER
Installer
Name:
Name:
............................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Address:
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Address:
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Tel:
Tel:
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. . . .............................................................................
Solid Fuel Heat Exchanger
cut along dotted line
Serial Number: .............. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stove output to system: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . kW (must not exceed 12kW).
Confirm stove output is no greater than SFHE rated input …. Yes / No (circle relevant).
System is installed in accordance with manual guidelines.
System is installed in accordance with building regulations.
Commissioning and handover details
System brought up to temperature by undersigned,
operating safely and transferring energy.
Manuals handed to householder.
INSTALLER SIGNATURE
...........................................................
DATE
............................................
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Firebird Heating Solutions Ltd.
Údarás Industrial Estate,
Baile Mhic Íre,
Co. Cork,
P12 HK51,
Ireland.
t: +353 (0)26 45253
f: +353 (0)26 45309
e: info@firebird.ie
www.firebird.ie
Photographs, Illustrations & Specifications. This catalogue was correct at the time of going to print. However, Firebird’s policy is one of continuous development.
The right is reserved to change specifications, colour, and prices of the models and items illustrated and described in this publication at any time. Whilst every care
has been exercised in the production of this catalogue, Firebird cannot accept any liability for errors or omissions. For the latest details always consult Firebird.
MLSFHE000
QUALITY STOVES DESIGNED FOR YOUR COMFORT