Baxi Bioflo Release note

Please keep these instructions in a safe place.
If you move house, please hand them over to the next occupier.
© Baxi Heating UK Ltd 2010
Bioflo
Pellet Central Heating System Boiler
These instructions should be read in conjunction with the
Supplementary Instructions
Installation & Servicing Instructions

© Baxi Heating UK Ltd 2010 All rights reserved. No part of this publication may
be reproduced or transmitted in any form or by any means, or stored in any
retrieval system of any nature (including in any database), in each case whether
electronic, mechanical, recording or otherwise, without the prior written
permission of the copyright owner, except for permitted fair dealing under
Copyrights, Designs and Patents Act 1988.
Applications for the copyright owner’s permission to reproduce or make other
use of any part of this publication should be made, giving details of the proposed
use, to the following address:
The Company Secretary, Baxi Heating UK Ltd,
Brooks House, Coventry Road, Warwick. CV34 4LL
Full acknowledgement of author and source must be given.
WARNING: Any person who does any unauthorised act in relation to a
copyright work may be liable to criminal prosecution and civil claims for damages.
Baxi Bioflo 12 kW Granite
Baxi Bioflo 12 kW Pearl

2
Important initial information for the Technician . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.2 Please note! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.3 Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.4 Fuel storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.4.1 Automated pellet supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.4.2 Manual pellet supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.5 Application options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.6 Flue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
For the Installer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1 Delivery, packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1.1 FireWIN Klassik . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1.2 FireWIN Premium and Exklusiv . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1.3 Optional accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.2 Taking in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.3.1 Installation room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.3.2 Heat radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.3.3 Installation place . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.3.4 Combustion air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.4 Dimensional sketches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.4.1 FireWIN flue gas and air supply connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.4.2 FireWIN without heating fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4.3 FireWIN – UAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4.4 FireWIN – UAML . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.4.5 Suction turbine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.5 Minimum service clearances for fire protection, cleaning and maintenance . . . . . . . . . . . . . . . . . .13
2.5.1 Masonry feed-throughs for the exhaust pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2.5.2 Minimum service clearances with flue gas tube connection straight back . . . . . . . . . . . . .14
2.5.3 Minimum service clearances with flue gas tube connection to the left or right side . . . . .15
2.6 Routing variants of delivery and return air hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
2.7 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
2.7.1 Heating fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
2.7.2 Heating circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
2.7.3 Domestic water (hot water tank) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
2.7.4 Return temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
2.7.5 Accumulator tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
2.7.6 Heating water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
2.7.7 Water-side resistance (pressure loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
2.8 Installing the cladding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
2.9 Installing the hose connection for fully automated supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
2.10 Installing cover plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
2.11 Installing the exhaust pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Table of contents: Page

3
Table of contents: Page
For the Electrician . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
3.1 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
For the Service Technician . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
4.1 Initial start-up and operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
4.2 Service and repair work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
4.3 Technical data for calculating the flue gas system acc. to EN 13384-1 . . . . . . . . . . . . . . . . . . . . . . .30
4.4 Technical data – General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
4.5 Service level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
4.5.1 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
4.5.2 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
4.5.3 Actuator test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
4.5.4 Installation of MES modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
4.6 FireWIN basic circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
4.7 FireWIN pellet feed connecting diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
4.8 FireWIN pellet feed connecting diagram with mixer for buried tank . . . . . . . . . . . . . . . . . . . . . . . .38
4.9 Connecting diagram for air intake/exhaust flap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Guarantee and warranty limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

4
Important initial information for the Technician
1.1 Safety
The boiler and related accessories reflect the state of the art and meet all applicable safety regulations.
1.2 Please note!
Your boiler and all accessories operate using 230 VAC electrical current. Improper installation or repair can pose
the danger of life-threatening electrical shock. Installation and repair may be performed only by appropriately
qualified technicians.
Caution symbols
Please take careful note of the following symbols in these Installation instructions.
Ignoring the identified warnings can lead to personal injury.
Ignoring the identified warnings can lead to malfunction of, or damage to the boiler or heating sys-
tem.
The specified safety requirements are to be followed in accordance with nationally applicable regula-
tions, standards and guidelines.
1.3 Fuel
The boilers are designed to burn the following fuels:
Pellets according to ÖNORM M7135 or DIN
plus.
Significant criteria based on the standards are as follows:
Diameter 6 mm Length 80% between 15 – 30 mm
Smooth surface Density at least 1.1 kg/dm3
Residual moisture content max. 10% Energy content min. 18 MJ/kg = 5 kWh/kg
(in water-free condition)
Ash content max. 0.5% Abraded particles max. 2.3%
Chemical/synthetic binding agents are strictly prohibited No impurities from varnish or paint residues, etc.

5
Important initial information for the Technician
1.6 Flue
A properly dimensioned flue is required for optimal functioning of the combustion system. Measurement of the
dimensions must follow EN 13384-1. See theTechnical data section for values required for this calculation.
Please note that in the lower performance range, flue gases may be below 90 °C.Therefore, thermally-insulat-
ed flues meeting thermal transmittance coefficient Group I requirements according to DIN 18160 T1 or other
appropriate, officially approved moisture-resistant exhaust systems may be connected to the hearths.
Frequently, these requirements on the flue are not satisfied during the renovation of existing systems. We there-
fore suggest an evaluation by the local building inspector before installing the boiler system. In this way appro-
priate modifications can be made to the flue before system installation. (See the technical data for flue calcu-
lation values.)
Energy-saving intake regulators or explosion flaps are not allowed to be installed in the living area.
Comply with the statutory regulations and directives.
1.5 Application options
FireWIN is designed for installation in the living area and is configured as a fully featured central heating system.
This means no second heat generator is required. If desired, however, FireWIN can be combined with alterna-
tive heat generators (e.g. solar or solid fuel boiler). Refer to the hydraulic systems for details about this.
The necessary hydraulic components for a heating circuit as well as hot water preparation are integrated in
FireWIN (see hydraulic equipment). This means there is no longer any need for a boiler room or equipment
room and that FireWIN is ideally suited for use as a central heating system in houses without a basement or
when central heating is being installed in a building for the first time as part of a renovation project.
1.4 Fuel storage
1.4.1 Automated pellet supply
The pellets can be stored in bulk in a storage room, sheet steel tank, fabric tank or a buried tank. See the sep-
arate “Pellet storage room” planning documents for planning information about this pellet storage.
The requirements for pellet storage are defined in ÖNORM M7137 for Austria or the Firing Ordinance FeuV for
Germany.
The pellets must be stored in a dry place in order to achieve trouble-free operation with optimum combustion
and at maximum efficiency.
The pellets must be transported carefully into and out of the storage room so as to maintain good
pellet quality.
The maximum transport length or height for a pellet feed system is 25 m horizontally with a 6 m vertical dif-
ference between the highest and lowest levels of the hose. These maximum values require a stable electricity
supply (min. 220 VAC under load).
1.4.2 Manual pellet supply
Pellets in bags must be stored in a dry place.
Please observe the local regulations on storing fuel.

6
For the Installer
2.1 Delivery, packaging
Hydraulic equipment FireWIN type/order no.
without heating fittings FW_ 090 FW_ 120
with circulation pump, expansion tank 12 l, motorised mixing valve,
safety valve and pressure gauge FW_ 090 UAM FW_ 120 UAM
with circulation pump, hot water tank feed pump with gravity brake,
expansion tank 12 l, motorised mixing valve, safety valve, pressure
gauge and supplied gravity brake for heating circuit
FW_ 090 UAML FW_ 120 UAML
2.1.1 FireWIN Klassik
The boiler is supplied on a wooden pallet covered with a plastic sack.The cladding parts are in a separate card-
board box. Cleaning tools are packed in the combustion chamber and the ash pan.
2.1.2 FireWIN Premium and Exklusiv
The boiler is supplied on a wooden pallet covered with a plastic sack.The cladding parts are in a separate card-
board box. Cleaning tools are packed in the combustion chamber and the ash pan. In addition, the suction tur-
bine (fully automated pellet feed) is packed in a cardboard box.
2.1.3 Optional accessories
(acc. to price list and order)
–
MES system control
Heating controlled by outside temperature + hot water tank, subsequent expansions possible
– REG standard control
Heating controlled by outside temperature + hot water tank, no expansion possible
–
Exhaust gas sensor in protective tube – JW-010
installed in the exhaust pipe – flue gas temperature is shown on the InfoWIN display
–
Ash pan for heating surfaces – FIRE 020
facilitates cleaning or unloading of the ash from the heating surfaces
–
Heat shield – FIRE 023
patented cover for the front window to reduce heat radiation during summer operation
–
Adapter for external combustion air supply – FIRE 024
already integrated in the boiler if ordered; connection for plastic pipes Ø 75 mm.
–
Covering screen, platinum silver – FIRE 025
140 mm deep, for covering the boiler connections at the side and rear
–
Covering screen, quartz beige – FIRE 026
140 mm deep, for covering the boiler connections at the side and rear
–
Mounting pedestal for FireWIN – FIRE 022
for initial installation without finished floor screed
–
Fully automated feed unit – FIRE 040
with maintenance-free suction turbine in storage room and standard hose connection downwards.
–
Hose connection at top for feed unit – FIRE 041
–
Fully automated changeover unit with 3 pcs. Suction wands – PMX 042
–
Delivery and return air hose with earthing DN 50/25 m – PMX 013
– Metal pipes for delivery and return air straight – FIRE 044
for routing the feed hoses downwards close to the exhaust pipe without fire risk
– Metal pipes for delivery and return air curved – FIRE 045
– for routing the feed hoses to the left/right close to the exhaust pipe without fire risk

7
For the Installer
Please note: Two separate cables are required for connecting the boiler to the suction turbine – this is
a requirement of the guarantee conditions! (E.g. accessory FIRE 042 or FIRE 043.)
– Connecting piece for return air hose – PMX 0131
–
Fire protection collars (2 pieces) incl. masonry attachment – BIO 010
–
Floor plate
– Stainless steel flue accessory DN 100 mm
Pipes, bends, pipe clamp, wall trim ring
–
Filling coupling set – PMX 014
NW 100 mm, 2 Storz A couplings with 0.5 m pipe and blockable blind covers, incl. fastening material
–
Z-bracket (2 pcs. at 2 m) – PMX 016
incl. bolts and dowels for storage room door
–
Baffle plate – PMX 017
made from plastic (1500 x 1500 x 2 mm) incl. fastening material for storage room
–
Pipe clamp for earthing the filling and return air lines Ø 100 mm and attaching them to the wall
–
Pipes and bends (natural aluminium) for extending the filling and return air pipes Ø 100 mm
–
Sheet steel tank and fabric tank in various sizes
– Ribbon cable for feed unit – FIRE 042
8 x1 mm2and 5 x 2.5 mm2; 15 m roll
–
Ribbon cable for feed unit – FIRE 043
8 x1 mm2and 5 x 2.5 mm2; 50 m roll
Suitable for
mounting base
Dimensions
(W x D x H)
Order
no.
For Austria,
Switzerland For Germany
Glass floor plate, transparent -850 x 700 x 6 FIRE 032 X X
Floor plate
Black-coated steel plate with
section for mounting base
X1139 x 550 x 3 FIRE 033 X -
Floor plate,
Black-coated steel plate with
section for mounting base
X1239 x 1000 x 3 FIRE 034 - X
Floor plate,
Black-coated steel plate -1139 x 550 x 3 FIRE 035 X -
Floor plate,
Black-coated steel plate -1239 x 1000 x 3 FIRE 036 - X
The technical fire protection requirements for the ground and/or dimensions1) of the floor plate should
be observed in accordance with applicable regulations, standards and guidelines.

8
2.3.2 Heat radiation
The viewing panel of the FireWIN means it is inevitable that heat will be radiated into the installation room.
The distribution of heat between air and water heating is approx. 15 : 85 % without the heat shield and approx.
9 : 91 % with the heat shield (accessory FIRE 023).
The following should be noted:
– Heating domestic water in summer:
Heat radiation always heats up the installation room when domestic water is being heated. Although the
amount of radiated heat can be significantly reduced by using the patented heat shield (accessory FIRE 023),
it can never be totally prevented.
This means it may not be possible to rule out overheating the installation room on hot days and, above all,
during the summer months.
To remedy this, we recommend heating domestic water using an alternative system such as solar.
– Heating surfaces/radiators in the installation room:
The heat radiation from FireWIN has been reduced to the minimum necessary, therefore a corresponding heat-
ing surface or radiator should also be installed in the installation room. Heating surfaces in the installation room
are essential when the system is combined with alternative heat generators (solar, accumulator tank or solid
fuel boiler) – Fig. 2.
We recommend using thermostat heads in the installation room.
– Minimum room size:
FireWIN very rapidly provides the necessary amount of heat at very low building heat demands or in
autumn/spring. Despite the fact that the boiler quickly reduces its output to the minimum level or actually
switches itself off entirely, there will nevertheless be a corresponding amount of heat radiation into the instal-
lation room.
This means it may not be possible to rule out overheating the installation room on hot days and, above all,
during the autumn/spring.
As a remedy, we recommend having an installation room with a minimum size of approx. 15 % of the entire
area to be heated) – Fig. 2.
2.3 Installation
2.3.1 Installation room
Basically, any room with normal air humidity and living space temperature in the living area is suitable for instal-
lation, providing it has a flue connection with an adequate draught (see technical data for flue requirements)
and satisfies the statutory regulations and directives.
Note: Due to the operating and flame noises, we do not recommend installing the device in bedrooms or quiet
rooms.
FireWIN is not allowed to be installed in rooms that are very dusty or humid (e.g. bathrooms, sanitary rooms,
etc.). The combustion air must be free from halogens and hydrocarbons (detergents, e.g. chlorine, ammonia,
fluorine, etc.) otherwise malfunctions may occur.
The installation room should not be too small otherwise the room could be overheated by the heat radiation.
The recommended rule of thumb is: The installation room should account for at least 15% of the area to be
heated.
2.2 Taking in
FireWIN is delivered without cladding (door, cover, side panels) on a pallet, without wood partitions.The cladding
parts are in a separate cardboard box. The taking-in weight is less than 200 kg, the taking-in width is 55 cm.
For the Installer
The boiler must be installed in dry, frost-free premises!
Limits (maximum): Air humidity: 85% at 25° room temperature (noncondensing)
Room temperature +2 to 40°C

9
For the Installer
Fig. 2 FireWIN in an installation room (more than approx. 15 % of the entire area to be heated)
2.3.3 Installation place
– The minimum service clearances from flammable materials and for connections, cleaning and maintenance must
be complied with – see point 3.2 Minimum service clearances.
–– FireWIN must be placed directly on a non-flammable base plate (e.g. accessory FIRE 030 or FIRE 032).
The configuration of the entire system must comply with technical fire protection requirements in accor-
dance with the applicable regulations, standards and guidelines.

10
For the Installer
Malfunctions or complaints occasioned by inadequate combustion air will not be covered by the
guarantee!
a) Operating with room air:
(Combustion air supply from the installation room or adjacent room)
Always ensure there is a sufficient combustion air supply (no windows and doors that provide a complete
air seal).
Combustion air supply from a well ventilated adjacent room via an air intake pipe.
The combustion air is carried along an air intake pipe from a well ventilated adjacent room (e.g. stairwell) to
the FireWIN. This avoids the induction noise in the installation room during operation. The accessory FIRE
024 is also required for this variant. The air supply is carried in commercially available plastic pipes 1) Ø 75
mm.The maximum induction length is 9 m, each 90° bend1) reduces the length by 1 m.
Combustion air supply directly from the installation room:
The combustion air is drawn directly by the device from the installation room, therefore the installation room
has to be adequately ventilated.
2.3.4 Combustion air
An adequate supply of combustion air is absolutely essential.The following combustion air flow is required for
operation at max. heat output:
FireWIN 90 (9 kW): approx. 20 m3/h
FireWIN 120 (12 kW): approx. 26 m3/h
There are various possible ways of supplying the combustion air:
a) Operating with room air
(Combustion air supply from the installation room or adjacent room)
b) Operating independently of the room air
(Combustion air supply from ventilation draught in the chimney)
Note:There may be an induction noise from the air supply induction point (air opening in the device), depending on
the modulation.The noise can be transferred outside or into an adjacent room by relocating the air supply induction
point.
Negative pressures in the installation/induction room with point a) Operating with room air are not permitted.
The function and safety of FireWIN is affected when combining with room ventilation systems and combustion
air supply from the installation room or adjacent room. Room ventilation systems must switch off automatical-
ly when the negative pressure in the device is more than 4 Pa below the external pressure. Special ventilation
systems are available for controlled living area ventilation in combination with solid fuel systems – refer to infor-
mation provided by the manufacturers of ventilation systems.
If ventilation systems (e.g. extractor hoods or pneumatic pumping systems, etc.), we recommend routing the
combustion air according to point b) Operating independently of the room air.This means it is possible to decou-
ple the combustion air from the air conditions in the installation room to a large extent.
In addition, the device is equipped as standard with a pressure monitoring device in the fire box in order to
guarantee safe operation of the device.
b) Operating independently of the room air:
(Combustion air supply from ventilation draught in the chimney)
This variant is to be preferred over operating with room air, because it ensures that there will always be suffi-
cient combustion air and that the induction noise during operation will be transferred to the outside.
The accessory FIRE 024 is required for this operation.The air supply is carried in commercially available plastic
pipes of diameter 75 mm.The maximum induction length is 9 m, each 90° bend reduces the length by 1 m.

11
For the Installer
Air intake from ventilation draught in the chimney; flue in the chimney:
The combustion air is drawn in through an unobstructed ventilation draught in the chimney – Figs. 3, 4. The
openings for the intake air and the flue gas are only allowed to be located with a square with a 500 mm side
length.This ensures that the same air pressure always prevails in the openings (even in very windy conditions).
Only flue gas systems that have been tested and approved for solid fuel applications, such as the Schiedl
Absolut with thermal ventilation, the Plewa air flue gas system Univers KE or the Universal pipe flue with
thermal vent may be used.
Fig. 4 Flue in the chimney,
air supply in a free ventilation draught
Fig. 3 Cross-section of ventila-
tion draught and flue
Legend
HÜ........Distance from opening of flow-out plate
hA........Distance of flow-out plate from head of supply air shaft
and/or flue gas shaft
e ..........Distance of flow-out plate from exterior walls
Dh........Inner diameter of internal pipe
1 ..........FireWIN
2 ..........Combustion air line
3 ..........Connecting piece
4 ..........Air/flue gas system
5 ..........Flue
6 ..........Air line
56
Conditions:
HÜ≥2 Dh
hA≥5/8 Dhand hA≥10 cm
0 cm ≤e ≤8 cm
Opening
The opening should be designed such that a dangerous volume of flue gases is not sucked away into the vent
and wind-related pressure fluctuations impact as evenly as possible on the vent and flue gas shaft.
If using barred air inlet openings, the opening’s free cross-section should be increased by at least 20 % com-
pared with air intake cross-sections defined in detail X. The mesh width of the barred openings should not be
any less than 10 mm.

12
For the Installer
Front view Side view All dimensions in mm:
2.4 Dimensional sketches
2.4.1 FireWIN flue gas and air supply connection
Fig. 5 FireWIN flue gas and air supply connection
A.........Flue gases
Z .........Air intake
Accessories – AZB 057, AZB 055 for exhaust pipe connection in the middle:Standard:
Fig. 6 FireWIN flue gas connection – standard Fig. 7 FireWIN flue gas connection –
accessories: AZB 057, AZB 055
1 . . . . .Double exhaust pipe bend rigid – AZB 057
2 . . . . .Pipe clamp – AZB 055

13
For the Installer
2.4.3 FireWIN – UAM
with circulation pump, expansion tank 12 l, motorised mixing valve, safety valve and pressure gauge
Fig. 9 FireWIN UAM
Front view Side view
HV.......Heating feed (3/4” sleeve)
HR.......Heating return (3/4” pipe)
All dimensions in mm:
All dimensions in mm:
Front view Side view
2.4.2 FireWIN without heating fittings
Fig. 8 FireWIN without heating fittings
HV.......Heating feed (3/4” pipe)
HR.......Heating return (3/4” pipe)

14
B
C
B
C
For the Installer
2.4.5 Suction turbine
Fig. 11 Suction turbine
Note:The hose connection to the changeover unit can be turned through 180° to the other side.
Connection to
pellet flue-connected boiler
Connection to
changeover unit
Front view Side view
2.4.4 FireWIN – UAML
with circulation pump, hot water tank feed pump with gravity brake, expansion tank 12 l, motorised mixing
valve, safety valve, pressure gauge and supplied gravity brake for heating circuit
Fig. 10 FireWIN UAML
Front view Side view
All dimensions in mm:
HV . . .Heating feed (3/4” sleeve)
HR . . .Heating return (3/4” pipe)
BV . . . .Boiler feed (3/4” pipe)
BR . . .Boiler return (3/4” pipe)
Note: when using the FIRE 025 and 026 covering screens, all connections must be positioned under the exhaust
pipe because the covering screens are fully closed above the exhaust pipe.

15
For the Installer
Fig.. 12 FireWIN mounting base
2.4.5 Mounting base – FIRE 022
for initial installation of FireWIN without finished floor screed
1 . . . . .Sheet steel floor plate with recess for mounting base (FIRE 032 or FIRE 033)
2 . . . . .Floor structure with lining
3 . . . . .Concrete ceiling – provided by customer

16
2.5 Minimum service clearances for fire protection, cleaning
and maintenance
The following minimum service clearances from flammable materials and for connections, cleaning and maintenance
must be complied with.
The configuration of the entire system must comply with technical fire protection requirements in accor-
dance with the applicable regulations, standards and guidelines.
2.5.1 Masonry feed-throughs for the exhaust pipe
Examples of masonry feed-throughs tested by the IBS – Institut für Brandschutztechnik und Sicherheitsforschung
(Institute for Fire ProtectionTechnology and Safety Research)
1 . . . . . .Concrete fill
2 . . . . . .Lining pipe
3 . . . . . .Cavity fill with non-flammable material
(e.g. rock wool)
4 . . . . . .Non-flammable cover
5 . . . . . .Exhaust pipe insulation 20 mm
techn. data of insulation:
– Mineral wool insulation
– Melting point: > 1000 °C
–Thermal conductivity: < 0.04 W/mK
– Minimum thickness: 20 mm
6 . . . . . .Multi-layer flammable wall
7 . . . . . .Flue
Multi-layer flammable wall Multi-layer flammable wall Non-flammable wall
All dimensions in mm:
Fig. 13 Tested masonry feed-throughs for exhaust pipe
Multi-layer flammable wall
There must be a gap of 200 mm from flammable com-
ponents all round the exhaust pipe.
Fig. 14 Tested masonry feed-throughs for exhaust pipe
For the Installer

17
For the Installer
1)
Dimension Clearance Description
a800 mm Minimum clearance in radiation area (front window) from flammable materials
b500 mm Minimum lateral clearance from non-movable objects (e.g. wall)
c50 mm Minimum lateral clearance from movable objects (e.g. furniture)
f
400 mm Minimum clearance from flammable walls with non-insulated exhaust pipe
200 mm
Minimum clearance from flammable walls with insulated exhaust pipe (20 mm) 2)
Minimum clearance from flammable walls with tested double-walled insulated
exhaust pipe, acc. to accreditation of connecting piece 3)
Fig. 15 FireWIN – view from above
1) When the fully automated feed unit FIRE 040 is installed subsequently, the pellet flue-connected boiler must be closed again
by a heating expert. Subsequent installation is highly complicated and can only be done by our customer service, with charg-
ing based on the actual work done.
2) Technical data for exhaust pipe insulation: Mineral wall insulation; melting point: >1000 °C; thermal conductivity: < 0.04 W/mK
3) The minimum service clearance is determined by the design specifications (Ø of the double pipe) of the flue gas system used
or the minimum service clearances demanded in the accreditation.
2.5.2 Minimum service clearances with flue gas tube connection
straight back
Note: The intake air line must be non-flammable (e.g. flexible aluminium tube) if the exhaust pipe is uninsulated.
If the walls are non-flammable, there are no fire protection reasons for a minimum service clearance
from the exhaust pipe and no need to insulate the exhaust pipe.
AB . . . . .Cover plates
(accessories: FIRE 025
or FIRE 026)

18
For the Installer
2.5.3 Minimum service clearances with flue gas tube connection to the
left or right side
Dimension Clearance Description
a800 mm Minimum clearance in radiation area (front window) from flammable materials
b500 mm Minimum lateral clearance from non-movable objects (e.g. wall)
c50 mm Minimum lateral clearance from movable objects (e.g. furniture)
d1)
>500 mm Minimum clearance from flammable walls with non-insulated exhaust pipe
>305 mm Minimum clearance from flammable walls with insulated exhaust pipe (20 mm) 2)
>210 mm 3)
>250 mm 3)
Minimum service clearance from flammable walls, flue connection to left or right
and tested double-walled insulated exhaust pipe 3)
>140 mm Minimum service clearance from non-flammable walls, flue connection to left or right
f
400 mm Minimum clearance from flammable walls with non-insulated exhaust pipe
200 mm Minimum clearance from flammable walls with insulated exhaust pipe (20 mm) 2)
>50–70 mm 3) Minimum clearance from flammable walls with tested double-walled insulated
exhaust pipe, acc. to accreditation of connecting piece 3)
1)
Fig. 16 FireWIN – view from above
1) When the fully automated feed unit FIRE 040 is installed subsequently, the pellet flue-connected boiler must be closed again
by a heating expert. Subsequent installation is highly complicated and can only be done by our customer service, with charg-
ing based on the actual work done.
2) Technical data for exhaust pipe insulation: Mineral wall insulation; melting point: >1000 °C; thermal conductivity: < 0.04 W/mK
3) The minimum service clearance is determined by the design specifications (Ø of the double pipe) of the flue gas system used
or the minimum service clearances demanded in the accreditation.
Note: The intake air line must be non-flammable (e.g. flexible aluminium tube) if the exhaust pipe is uninsulated.
If the walls are non-flammable, there are no fire protection reasons for a minimum service clearance
from the exhaust pipe and no need to insulate the exhaust pipe.

5
1
3
1
4
1
4
2
19
For the Installer
Fig. 17 FireWIN with feed and storage room – view from rear
2.6 Routing variants of delivery and return air hose
2.6.1 Routing / connection options for boiler
FS . . . .Transport hose
RS . . .Reverse air flow hose
A . . . . .Exhaust pipe
Z . . . . .Air supply connection
HV . . .Heating feed
HR . . .Heating return
BV . . . .Hot water tank feed (type UAML only)
BR . . .Hot water tank return (type UAML only)
Standard hose connection downwards – standard
Hose connection upwards
– accessory FIRE 041
The delivery and return air hose must be replaced by non-flammable steel pipes in the area of the insu-
lated exhaust pipe.
1 . . . . .Standard hose connection downwards
2 . . . . .Hose connection upwards – accessory: FIRE 041
3 . . . . .Metal pipes for delivery and return air straight – accessory: FIRE 044
4 . . . . .Metal pipes for delivery and return air curved – accessory: FIRE 045
5 . . . . .Fire protection collars incl. masonry attachment - accessory: BIO 010