Guntamatic BIOCOM Installation Instructions Manual

Pellet boiler englisch

BIOCOM

Installation instructions

BC-A-00-00-00-01-IAEN

EN-B31-007-V10-0711

BIOCOM Installation Instructions

2

Information on this documentation

BS-B-00-00-00-01-IAEN

Please read through this documentation carefully.
It is intended as a reference document and contains important

information on the design, safety, operation, maintenance and
care of your heating system.

We are always looking to improve our products and
documentation. Any ideas and suggestions you may have will
be gratefully received.

GUNTAMATIC Heiztechnik GmbH

a Georg Fischer Group Company

Bruck 7
A-4722 PEUERBACH

Tel: [phone] / 2441-0
Fax: [phone] / 3031
E-mail: [e-mail]

It is important that you pay particular
attention to the safety issues highlighted in
the text by these symbols.

The entire contents of this document are the property of
GUNTAMATIC and therefore protected by copyright.
Reproduction of any kind, communication to third parties by
any means or use for purposes other than those intended
without the written consent of the owner is prohibited.

Subject to printing errors and technical amendments.

BIOCOM Installation Instructions

3

Installation instructions

BC-C-00-00-00-01-IAEN

Page

1 Introduction..........................................................4

1.1 Safety instructions 4

1.2 Guarantee 4

1.3 Commissioning 4

1.4 Site requirements 4

1.4.1 Fire safety

(minimum fire safety requirements)

5

1.4.2 Boiler room requirements 7

1.4.3 Flue requirements 8

1.4.4 Fuel store requirements 9

2 Installation and assembly .................................11

2.1 Delivery 11

2.2 Carrying to installation site 11

2.3 Positioning and aligning the boiler 11

2.4 Plumbing connections 12

2.5 Filling and bleeding the system 15

2.6 Connecting the flue 16

2.7 Energy saving draught regulator with pressure-surge
compensator 17

2.8 Installing the fuel outfeed system 18

2.8.1 FLEX system 18

2.8.2 BOX system 21

3 Electrical connections.......................................22

3.1 Electrical connections to the heating system 22

3.2 Wiring requirements 23

3.3 Electrical connections 24

4 Final checks/Commissioning............................27

5 Standards/Regulations......................................28

6 Plumbing diagrams...................................... 29-45

7 Electrical wiring diagram ..................................46

7.1 Control panel 46

7.2 Wall controller set MK261 47

7.3 Boiler circuit board 48

8 Technical data....................................................49

8.1 BIOCOM 30-100 49-50

8.2 FLEX outfeed system 51

8.3 BOX outfeed system 51

BIOCOM Installation Instructions

4

1 Introduction

BS-01-00-00-00-01-IAEN

1.1 Safety instructions

BS-01-01-00-00-01-IAEN

GUNTAMATIC heating systems represent state-of-the-art
technology and meet all applicable safety regulations.
Incorrect installation can endanger life and limb. Heating
boilers are combustion systems and are potentially dangerous
if handled incorrectly. Installation, commissioning and
servicing must, therefore, only be carried out by adequately
qualified technicians observing all regulations and the
manufacturer's instructions.

1.2 Guarantee and warranty

BS-01-02-00-00-01-IAEN

The manufacturer's guarantee is subject to correct installation
and commissioning of the heating system. Defects and
damage caused by incorrect installation, commissioning or
operation are not covered by the guarantee. To ensure that
the system functions as intended, the manufacturer's
instructions must be followed. Furthermore, only genuine
replacement parts or parts explicitly approved by the
manufacturer may be fitted to the system.

1.3 Commissioning

BS-01-03-00-00-01-IAEN

Commissioning of the boiler must be carried out by an
authorised GUNTAMATIC specialist or other qualified
persons. They will check whether the system has been
installed according to the plans, adjust the system settings as
required and explain to the system operator how to use the
heating system.

1.4 Site requirements

BS-01-04-00-00-01-IAEN

When establishing the site requirements, it is absolutely
essential to take account of the locally applicable planning,
building and implementation regulations and the dimensional
specifications in the fitting guidelines, installation examples
and technical data. Compliance with the locally applicable
regulations and the correct implementation of the measures
required on site are solely the responsibility of the system
owner and are a requirement of the manufacturer's guarantee.
GUNTAMATIC provides no guarantee of any kind for any type
of site work. Without making any claims as to completeness or
non-applicability of official requirements, we recommend the
following specifications based on the Austrian Guidelines pr
TRVB H 118:

BIOCOM Installation Instructions

5

1.4.1 Fire safety

BS-01-04-01-00-01-IAEN

If the installation site is not subject to any other fire safety
requirements, the GUNTAMATIC minimum fire safety
requirements must always be observed. If the installation site
is subject to stricter requirements than the minimum fire safety
requirements specified here, then the stricter requirements
must always be observed without exception.

Caution: Compliance with the GUNTAMATIC minimum fire safety

requirements is subject only to verification by the operator.
The operator alone is responsible for strict compliance.
Verification during commissioning is not provided for.

Caution: National regulations must also be complied with.

National regulations Austria: F90/T30

State legislation of the federal states
Technical Directive on Preventative Fire Safety pr TRVB H118

Germany: No requirements for systems up to 50 kW
Standard boiler regulations (M-FeuVO)

Hessen and Saarland – in these states §16 FeuVO Hessen
applies

Switzerland:
Fire safety regulations (www.vkf.ch)

France:

Relevant fire safety authority

Italy:
Relevant fire safety authority

BIOCOM Installation Instructions

6

Minimum fire safety requirements

BS-01-04-01-01-01-IAEN

BS-01-04-01-02-01-IAEN

Boiler room Floor of concrete construction, either bare or tiled. All

materials for floor, walls and ceiling must be fire-resistant to
F60 rating. If a fabric hopper is installed in the boiler room (not
allowed in all countries), the floor walls and ceiling must be
F90-rated. The boiler room door must be a Class T30 fire door
which opens in the direction of escape and is self-closing.
Connecting doors to the fuel storeroom must also be Class
T30 fire doors, self-closing and lockable. There must be no
direct connection to rooms in which flammable gases or
liquids are stored (e.g. garage).

BS-01-04-01-03-01-IAEN

Fuel storeroom The same minimum fire safety requirements apply as for the

boiler room.
Storeroom doors/hatches: Storeroom doors/hatches must

be fire safe to Class T30, self-closing and lockable. There
must be a warning sign carrying the message "Do not enter
when feeder system is running" attached to the storeroom
door/hatch.

Fireproof collars: If the storeroom is not situated directly
adjacent to the boiler room, a fireproof collar must be fitted to
the extraction and air return pipes at their wall exit points from
the boiler room. If the outfeed auger goes directly into the
boiler room, it is factory fitted with a special fire safety lining.
No additional fireproof collars are required on the air pipes. If
the outfeed auger is sited entirely inside the storeroom (i.e. if
the outfeed auger does not extend out of the storeroom),
fireproof collars must similarly be fitted to the extraction and
air return pipes at their wall exit points from the storeroom.

Manual fire extinguisher: If 50 m³ of fuel or more can be
stored, a manually operated fire extinguishing facility must be
installed. It must be protected against freezing and connected
to a pressurised water pipe (DN20 conduit). The discharge
point must be located directly above where the fuel outfeed
channel exits the storeroom. The fire extinguishing facility
must be identified by a sign carrying the inscription "Fuel
storeroom fire extinguisher".

Filler pipes: Filler pipes through rooms where there is a fire
risk must be provided with Class F90 cladding.

BIOCOM Installation Instructions

7

1.4.2 Boiler room requirements

BS-01-04-02-00-01-IAEN

PH-01-04-02-01-01-IAEN

Combustion air supply The pressure in the boiler room must not be less than 3 Pa

(0.3 mm H2O). The air vents for boiler rooms must have a
clear, net cross-sectional area of at least 200 cm² and must
not be sealable. With combustion boiler systems with a fuel
heat output upwards of 50 kW, the net, clear cross-sectional
area must be increased to at least 5 cm² per kW rated output
according to the combustion air requirement of the boiler
system. The air supply ducting must connect directly to the
outside and if the ducting passes through other rooms, it must
be jacketed to Class F90. On the outside of the building, air
vents must be covered by a protective grille with a mesh size
of > 5 mm. The supply of combustion air should, if possible,
enter at floor level in order to prevent cooling of the boiler
room.

BS-01-04-02-02-01-IAEN

Electrical installation The lighting and the electrical wiring in the boiler room must

be permanently installed. There must be a clearly marked
emergency off switch in an easily accessible position outside
the boiler room, close to the boiler-room door.

BS-01-04-02-03-01-IAEN

Fire extinguisher A hand-held fire extinguisher (6kg gross weight, EN3) must be

mounted outside the boiler room near the boiler-room door.

BS-01-04-02-04-01-IAEN

Protection against freezing The boiler room, pipes carrying water and any district heating

pipes must be protected against freezing.

BC-01-04-02-05-01-IAEN

Minimum room size PH 30, BC 40, PH 50 at least 230(240) x 240 cm (W x L)

BC 75, BC 100 at least 230(240) x 270 cm (W x L)

(Dimensions in brackets refer to systems with automatic ash extraction
system.)

BC-01-04-02-06-01-IAEN

Minimum room height BC 30, BC 40, BC 50 at least 225 cm

(with heat exchanger cover removed at least 210 cm)

BC 75, BC 100 at least 240 cm

(with heat exchanger cover removed at least 230 cm)

BC-01-04-02-07-01-IAEN

Clear access opening BC 30, BC 40, BC 50 at least 80 x 170 cm (W x H)

BC 75, BC 100 at least 100 x 190 cm (W x H)

(Dimensions refer to boiler with grate cleaner motor and stoker removed.)

Boiler dimensions

BC-01-04-02-08-01-IAEN

Without ISO BC 30, BC 40, BC 50 at least 75 x 165 cm (W x H)
BC 75, BC 100 at least 90 x 180 cm (W x H)

(Dimensions refer to boiler with casing, stoker, flue connecting pipe and ash
box removed.)

BIOCOM Installation Instructions

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1.4.3 Flue requirements

BS-01-04-03-00-01-IAEN

The flue must be matched to the system in order to ensure
economical and trouble-free operation.

BS-01-04-03-01-01-IAEN

Important

BS-01-04-03-02-01-IAEN

The system must only be connected to the flue if the flue
meets the legal requirements and the technical specifications.
The flue must be matched to the boiler output and
dimensioned in accordance with DIN 4705. In order to be able
to accurately dimension the flue, the calculations must be
based on the flue gas figures. When designing new flues, high
thermal insulation chimneys (DIN 18160 T1 heat transmission
resistance group I) or suitable fireclay flues that are
insusceptible to damp and have general building regulation
approval should be used. It is advisable to involve those
responsible for approving the flue system early on in the
planning phase.

BS-01-04-03-03-01-IAEN

Flue height The minimum flue height is 5 - 10 m depending on boiler

output. The flue must terminate at least 0.5 m above the
highest part of the building. In the case of flat rooves, the flue
must terminate at least 1.5 m above the surface of the roof.

Flue dimensioning data Dimension the flue for rated output.!

BC-01-04-03-05-01-IAEN

(Averaged figures with used heat exchanger)

Rated output

Sub-maximum output

Type

Flue gas

temp.

CO2 Mass flow rate

Required

draught

BC30

160 °C 12,5 % 0.024 kg/s 15 pascals

BC40

170 °C 13,0 % 0.030 kg/s 15 pascals

BC50

170 °C 13,0 % 0.030 kg/s 15 pascals

BC75

190 °C 13,0 % 0.042 kg/s 15 pascals

BC100

190 °C 13,0 % 0.055 kg/s 15 pascals

Type

Flue gas

temp.

CO2 Mass flow rate

Required

draught

BC30

100 °C 9,5 % 0.010 kg/s 10 pascals

BC40

105 °C 10,0 % 0.012 kg/s 10 pascals

BC50

115 °C 10,0 % 0.009 kg/s 10 pascals

BC75

120 °C 10,0 % 0.013 kg/s 12 pascals

BC100

120 °C 10,0 % 0.017 kg/s 12 pascals

Use heat

-

insulated fireclay flues that are

insensitive to damp.

The flue gas temperature can be less

than 105°C.

BIOCOM Installation Instructions

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1.4.4 Fuel store requirements

BS-01-04-04-00-01-IAEN

BS-01-04-04-01-01-IAEN

Access doors/hatches Above-ground fuel stores must be provided with a door or

hatch that opens outwards. So that the fuel cannot run out if
the fuel store is opened by mistake, the inside of the access
door/hatch opening must be covered with boarding (which
must be removable from the outside). Due to the risk of injury
when the system is in operation, access doors/hatches must
be lockable and kept locked when the system is in operation.
There must be a warning sign carrying the message "Do not
enter when feeder system is running" attached to the access
door/hatch.

Electrical equipment FLEX system

BS-01-04-04-02-01-IAEN

Electrical equipment is prohibited in the fuel storeroom.

BOX system

Electrical equipment is permitted in the room in which the
system is installed. Light bulbs must not be fitted in close
proximity to the fabric hopper.

BS-01-04-04-03-01-IAEN

Filler set The filler pipes must be earthed.

FLEX system

At least 2 filler pipes must be installed. Minimum separation

0.5 m.

BS-01-04-04-04-01-IAEN

Installation in cold areas If installed in cold areas, vacuum pipes and outfeed unit must

be adequately insulated (frost-proof).

Risk of condensation formation

Structural requirements FLEX system

BS-01-04-04-05-01-IAEN

The enclosing walls must be capable of withstanding the
possible static loads created by the fuel and the pressure
when filling the fuel store.

BOX system

It is imperative that the load-bearing capacity of the base is
adequately dimensioned as, when the hopper is completely
full, heavy loads act on the points on which the unit rests.

BS-01-04-04-06-01-IAEN

Erecting BOX system Indoor installation: The fabric hopper must always be

installed separately from the boiler in a different room. In
some countries, the fabric hopper may be installed in the
same room as the boiler if a minimum separation of 1 m
between the fabric hopper and the boiler can be maintained
and the fuel heat output remains below 50 kW.

National legislation must also be observed!
Outdoor installation: If erected outdoors, no F90 lining is

required if the minimum distances for fire flashover are
maintained. The fabric hopper must be protected against rain,
damp and UV light.

BIOCOM Installation Instructions

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BS-01-04-04-07-01-IAEN

Wall penetration If there is an auger conveyor passing through the storeroom

wall, the gap in the wall must be filled with mineral wool and
sealed by means of the non-contact (sound insulation)
finishing plates provided.

BS-01-04-04-08-01-IAEN

Filling the fuel store When pressure-filling the fuel store from a tanker truck, the air

pumped in must be drawn out of the fuel store. Extraction is
the responsibility of the supplier.

BS-01-04-04-09-01-IAEN

Damp-proofing The fuel must be protected against contact with water or

damp floors/walls. The storeroom must remain dry all year
round. If there is a risk of temporarily damp walls, fitting a
back-ventilated facing to the walls and lining them with
wooden material may be required.

BIOCOM Installation Instructions

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2 Installation and assembly

BS-02-00-00-00-01-IAEN

2.1 Delivery

BS-02-01-00-00-01-IAEN

The boiler system is delivered packed in a wooden crate
wrapped in foil. Please check that the delivery is complete
according to the delivery note and in perfect condition.

Deficiencies Please make a note of the deficiencies identified directly on

the delivery note and contact the supplier, heating installer or
our Customer Service.

2.2 Carrying to installation site

BS-02-02-00-00-01-IAEN

The system is delivered on a wooden pallet and can be lifted
and carried to the installation site using a pallet truck.

Carrying in dismantled The boiler body can be dismantled into parts for carrying in. If

that is done, a person authorised by GUNTAMATIC must be
consulted.

2.3 Positioning and aligning the boiler

PH-02-03-00-00-01-IAEN

Keep to the minimum wall clearances specified by the system
planner and manufacturer. If important details are missing,
please refer to the planning documentation or ask our
Technical Support. Position the system as close as possible to
the flue to avoid having a long flue connecting pipe. The
system must be accessible from the left or right side.

Clearance on left at least 40 cm (preferably 70 cm)

Clearance on right at least 40 cm

Clearance at front at least 80 cm (leave space for fuel box door to open)

Clearance at back at least 50 cm (with auto ash extraction system, at least 60

cm)

Floor clearance Set the clearance between the boiler base and the floor to the

required minimum of 35 mm by unscrewing the adjustable feet
on the boiler base.

Set the boiler at a slant Unscrew the rear adjustable feet slightly further so that the

boiler is slightly higher at the rear. That will allow the air
inside the boiler to escape easily when the system is filled.

BIOCOM Installation Instructions

12

2.4 Plumbing connections

BC-02-04-00-00-01-IAEN

Biocom 30/40/50

A → Sensor for temp. relief valve, ½"

B → Heating return, 1¼"

C → Temperature-relief heat exchanger, ¾"

D → Boiler sensor, safety temperature

limiter (STL)

E → External thermostat/drain, ½"

F → Heating flow, 1¼"

Biocom 75/100

A → Sensor for temp. relief valve, ½"

B → Heating flow, 2"

C → Temperature-relief heat exchanger, ¾"

D → External thermostat, ½"

E → Drain

F → Heating return, 2"

BIOCOM Installation Instructions

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BC-02-04-00-01-01-IAEN

Temperature-relief heat exchanger The maximum permissible boiler operating temperature is

110°C. In order to prevent the maximum allowable operating
temperature being exceeded, connection of a temperature­relief valve conforming to Austrian standard ÖNORM 8131
and DIN 4751 and with a response temperature of 95°C is
required. The supply pressure must be at least 2 bar but no
more than 6 bar.

Biocom 30/40/50

A → Cold water supply for

Temperature-relief heat exchanger

B → Sensor for temp. relief valve, ½"

C → Temp. relief valve, 95°C

Biocom 75/100

A → Cold water supply for

Temperature-relief heat exchanger

B → Sensor for temp. relief valve, ½"

C → Temp. relief valve, 95°C

BIOCOM Installation Instructions

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PH-02-04-00-02-01-IAEN

Thermal store Installing a thermal store is not necessary as the boiler is

operated by a modulating control system and the system can
be quickly shut down. However, if the required continuous
heat output in the summer months is below 10 kW for systems
up to 50 kW, or 22 kW for systems upwards of 50 kW,
combination with a thermal store is necessary for reasons of
efficiency.

BC-02-04-00-03-01-IAEN

Return boost The boiler return temperature must be at least 40°C in

systems up to 50 kW and 45°C for systems upwards of 50
kW, and must be held at the required level by a bypass pump
between the boiler flow and return pipes. If a thermal store is
connected, the boiler return temperature must be at least 55
°C, which must be ensured by a return boost set as shown in
the plumbing diagram. If this requirement is not complied with,
there is an increased risk of corrosion and guarantee
entitlement will be lost as a result. Connect the return boost
set precisely as specified in our plumbing diagrams.

Important The dimensioning of the return boost pump (set) is designed

for the arrangements shown in GUNTAMATIC plumbing
diagrams. If additional components such as heat meters are
incorporated in the system plumbing, or if the overall thermal
store pipe run (flow and return) is more than 30 m, re­dimensioning of the boiler charging pump (HP0) may be
necessary.

SY-02-04-00-04-01-IAEN

Expansion vessel

The boiler operates in a sealed heating system and must be
provided with an expansion vessel for pressure compensation.
To calculate the expansion volume, the volume of the system
when cold must be known. Please select the expansion vessel
on the basis of the manufacturer's specifications. The
expansion volume of the system is calculated as follows:

System volume x Expansion factor x Additional allowance
factor

• Expansion factor for wood-fuel boilers = 0.03

• Additional allowance factor = 3.0 for systems under 30 kW

• Additional allowance factor = 2.0 for 30-150 kW systems

• Additional allowance factor = 1.5 for systems over 150 kW

Example calculation: 2500 litres x 0.03 x 3 = 225 litres

BS-02-04-00-05-01-IAEN

Plastic piping

If plastic piping for underfloor heating or district heating pipes
are connected, they must be protected against excessive
temperatures by using a limiting thermostat for the circulation
pumps.

BS-02-04-00-06-01-IAEN

Pump selection

The choice of pump must be made by the installer or building
technology planner on the basis of the friction data, the pipe
cross-sectional area and the required delivery pressure for the
piping system planned.

BIOCOM Installation Instructions

15

2.5 Filling and bleeding the system

BS-02-05-00-00-01-IAEN

The system is filled with water from the domestic supply.
Please note the guidelines on "Corrosion and boiler protection
in heating and domestic water systems".

Water quality The water quality of hot water systems with flow temperatures

of max. 100°C is subject to VDI 2035. According to VDI 2035
Part 1, "Avoiding damage to hot water systems", which
comply with EN12828, the first-fill and replenishment water,
must be conditioned (preferably softened) if the following
overall hardness limits [°dH] according to total heat output
(kW) are exceeded:

• < 50kW: with circulating flow heaters, if °dH > 16.8

• 50 to 200 kW: if °dH > 11.2

• 200 to 500 kW: if °dH > 8.4

• > 500kW: if °dH > 0.11

Water heater If a water heater is also used in addition to the GUNTAMATIC

boiler, it should be filled according to the installation
instructions for it.

Filling the system

• Match the pressure of the system when cold to the air
charge pressure of the expansion vessel

• Check the operating pressure on the pressure gauge

Bleeding the system

• Switch off and bleed circulation pumps.

• Bleed boiler by opening the bleed valve on the boiler

and allowing air to escape until water runs out.

• Bleed radiator heating system (if present) by opening
the bleed valve on every radiator and allowing air to
escape until water runs out.

• Bleed underfloor heating system (if present) by opening
each heating circuit and flushing through thoroughly
until there are no more air bubbles in the heating circuit
pipes.

• Important: perform sequence in the correct order!

Start bleeding in the cellar or on the ground floor and
finish in the attic.

• Check the system operating pressure on the pressure
gauge and add more water if necessary.

• Restart circulation pumps.

Only systems that have been properly bled

guarantee effective conveyance of heat.

BIOCOM Installation Instructions

16

2.6 Connecting the flue

BS-02-06-00-00-01-IAEN

BC-02-06-00-01-01-IAEN

The boiler is connected to the flue by means of a flue
connecting pipe which must be gas-tight and insulated
between the heating boiler and the chimney (insulation
thickness 50 mm).

Flue connecting pipe The following diameters should be used:

• BC 30, BC 40, BC 50 dia. = 150 mm

• BC 75, BC 100 dia. = 180 mm

Flue connecting pipes longer than 4 m or with more than 3
bends:

• BC 30, BC 40, BC 50 dia. = 160 mm

• BC 75, BC 100 dia. = 220 - 250 mm

The hole in the wall for connecting the flue pipe must be lined
with a built-in double-skinned lining tube or fireproof material.
The flue connecting pipe must rise upwards from the boiler to
the flue at an angle of at least 6° and be connected with gas­tight joints. An inspection cover must be provided for cleaning
the flue connecting pipe.

PH-02-06-00-02-01-IAEN

A → Flue connecting pipe insulation (50 mm)

B → Testing point for flue draught

(Distance from boiler = at least 3 x dia. of flue connecting pipe)

C → Alternatively: Flue draught regulator in flue

connecting pipe

(As close as possible to junction with the flue)

D → Flue connecting pipe, min. gradient 6°

H → Flue draught regulator/pressure-surge

compensator in flue

(Preferred fitting arrangement)

BS-02-06-00-03-01-IAEN

Note

• The flue connecting pipe musty be gas-tight

• An energy-saving flue draught regulator with pressure-

surge compensator (Class RE) must be fitted

• Insulate the flue connecting pipe

• Do not brick in the flue connecting pipe

(noise

transmission)

• The flue connecting pipe must not extend into the flue

BIOCOM Installation Instructions

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2.7 Energy-saving flue draught regulator and pressure-surge compensator

BS-02-07-00-00-01-IAEN

Purpose

• To ventilate the flue when the system is not in
operation

• To compensate for pressure surges

• To regulate and limit the flue draught

Fitting requirement The energy-saving flue draught regulator must be fitted in

accordance with the local regulations, preferably in the flue
approx. 0.5 m below the point where the flue connecting pipe
joins or alternatively in the flue connecting pipe close to its
junction with the flue.

Flue draught setting:

• Adjusting the flue draught is only of any use at outside
temperatures below +5°C.

• The system must have been in operation for at least an
hour

• Ensure there is sufficient demand for heat for the boiler
to be run at rated output for at least 15 minutes

• Measure the flue draught between the boiler and the
flue draught regulator (distance of measuring point from
boiler ideally 3 x flue diameter from connection
between boiler and flue connecting pipe).

Flue draught

The flue draught should not differ by more than +/- 3 pascals
from the figure specified in the flue dimensioning data. If the
flue draught cannot be reduced to the required figure, either a
larger draught regulator should be fitted or an additional flue
baffle fitted between the flue and the draught regulator.

Too much flue draught May cause the flue gas temperature to increase and

accelerate combustion as a result. Poor boiler output
adjustability, increased dust discharge and malfunctions can
result.

Too little flue draught Performance problems, incomplete combustion and

malfunctions when operating below rated output can result.

Fitting an energy-saving flue draught

regulator/pressure-surge compensator (Class

RE) is absolutely imperative.

BIOCOM Installation Instructions

18

2.8 Fuel outfeed installation

BS-02-08-00-00-01-IAEN

2.8.1 FLEX system

BS-02-08-01-00-01-IAEN

Important → Ensure the inlet opening is on the correct side.

A → Conveying direction

B → Inlet opening always this side

C → Direction of rotation

D → Scraper

E → Floor mounting plate

F → Check dimension 56 mm

Fig. A

Installing the outfeed auger (Fig. A)

1. Feed the drive unit (1) of the fuel outfeed auger through
the hole (W 330mm x H 250mm) in the storeroom wall.

2. Depending on the auger length, join auger sections
complete with conveyor trough (2) to the drive unit (1)
from the storeroom end. Important: join the auger
sections together so that the auger slope continues
evenly. Afterwards securely fix the auger trough flange
joint using the M8x30 bolts supplied (3) and locking
washers. Make sure that the auger troughs are joined
together so as to be perfectly flush on the inside. Screw
the flange plate (4) and bearing on the end of the outfeed
auger (if not pre-fitted).

3. Slightly unscrew the grub screws (5) on the bearing and
attempt to push the auger towards the drive unit as far as
it will go. Then re-tighten the grub screws.

4. After assembly: rotate the auger to check that is running
true (maximum allowable auger run-out in the centre is 3
mm).

5. Position the assembled outfeed auger so that the drive
unit extends at least 420 mm (see Fig. B) out of the
storeroom wall.

6. Screw the conveyor trough securely to the storeroom
floor.

Important: the conveyor trough must be aligned flush
using the floor mounting plates (E) and screwed securely
to the floor so that it is straight and has no sags or
humps.

BIOCOM Installation Instructions

19

7. Fill the gap (6) in the wall around the conveyor with
mineral wool. Cover the hole on both sides of the wall
with the masking plates supplied (7), fitting them so that
they do not touch the conveyor.

FLEX fuel outfeed system

Fig. B

Fitting the vacuum extraction and air return pipes (Fig. 9)

1. Connect the vacuum hoses (8) from the cyclonic
separator (9) or fan to either of the vacuum hose
connection spigots on the auger (routing the hoses so
that the bends are as gradual as possible).

Important: the minimum curvature radius for routing the
hoses is 0.5 m. In addition, the hoses should not sag. An
adequate number of fixings should be used.

2. The vacuum and air return pipes (8) must be secured to
the cyclonic separator (9) and the drive unit (1) and made
air-tight using the pipe clips supplied.

Important: check for air-tightness the first time fuel is
drawn in. Leaking joints can cause problems with filling.

3. Do not route the air hoses for the fuel delivery system
outdoors or through cold rooms (possibility of
condensation forming in the vacuum hoses). If
necessary, insulate the vacuum hoses adequately.

Important → It is imperative that the vacuum and air return pipes are

earthed. To do so, separate out the copper wire at the ends of
the pipes joining the vacuum unit and the conveyor drive unit
and connect them to the earthing connections on the vacuum
unit and the outfeed unit.

Important → The fuel outfeed conveyor must be completely emptied

(vacuumed out) every 3 years at least.

BIOCOM Installation Instructions

20

Fitting the boarding in the FLEX system storeroom (Fig. 10)

A → Batten
B → Board trimmed by 3 cm
C → Supporting batten (10 x 10)
D → Wooden boards, planed, or

blockboard (3 cm)

E → Square batten, 10 x 10
F → Square batten, 10 x 10
L → Reinforcing batten (C)

required if L >/= 1500 mm

Fig. C Viewed from conveyor drive unit facing

towards storeroom

Fit boarding in storeroom as follows:

1. Locate a length of roof batten in the slot in the auger to
mark out the 35° slope.

2. Mark the height of the slope on the wall and screw
square batten (F) (e.g. 10 cm x 10 cm) to the wall approx.
3 cm below the marked height of the slope.

3. Support horizontal batten with uprights every 1.5 m. If the
distance between the auger and the wall is greater than

1.5 m, additional supporting battens (C) must be
provided.

4. Planed timber boards or blockboard panels 3 cm thick
(D) should be cut approx. 3 cm short so that when they
are slotted into the auger a gap is left between the board
and the wall.

5. Do not screw every board in place and instead screw a
horizontal batten (A) to the wall across all the boards.

6. If the auger does not extend to the end of the storeroom,
a 35° slope should also be constructed from the end wall
to the conveyor.

7. If the conveyor sections do not reach up to the exit point
through the wall, an additional substructure must be used
up to the wall.

BIOCOM Installation Instructions

21

Filler set The pellet store requires at least 2 filler pipes (for pressure-

filling and air extraction).

• Whenever possible, the filler pipes should be placed
centrally in the shorter side of the storeroom.

• Minimum distance from ceiling and walls 25 cm.

• Required hole diameter in wall 130-150 mm.

• Fill gap with (waterproof) expanding foam filler.

• Ensure the filler pipes are fixed firmly in place.

• The filler pipes must be earthed to the earthing conductor

(1.5 mm2).

A → PVC pipe, 150 mm dia.

B → Filler set, straight

C → Steel pipe internal dia. 100 mm

external dia. 108 mm

D → Filler set, 45° elbow

E → Light shaft

Access doors/hatches

Above-ground fuel stores must be provided with a door or
hatch that opens outwards. So that the fuel cannot run out if
the door/hatch is opened by mistake, the inside of the access
door/hatch opening must be covered with boarding (which
must be removable from the outside). Due to the risk of injury
when the system is in operation, access doors/hatches must
be lockable. There must be a warning sign carrying the
message "Do not enter when feeder system is running"
attached to the access door/hatch. The door/hatch opening
must be provided with a (dust-proof) seal around its perimeter.

A → Seal

B → Fire door (hatch), Class T30

C → U or Z-section framing

D → Wooden boards (at least 3 cm thick)

2.8.2 BOX system

BS-02-08-02-00-01-IAEN

The BOX fabric hopper system is installed as described in the
separate installation instructions. They are supplied with the
BOX system.

BIOCOM Installation Instructions

22

3 Electrical connections

BS-03-00-00-00-01-IAEN

3.1 Heating system electrical connections

BC-03-01-00-00-01-IAEN

Mains connection

• 230V, 50Hz, 13A fuse

(surge protector recommended)

Standard specifications

• 1 Boiler control panel

(BCE)

• 1 Boiler circuit board

(230V AC)

• 1 Safety temperature limiter

(STL)

• 1 Fault signal output

(24V DC 200 mA – if freewheeling diode relay used)

• 1 Boiler sensor

(KVT20 Ω)

• 1 Flue gas temperature sensor

(thermocouple)

• 1 Stoker sensor

(PT1000 Ω)

• 1 Oxygen sensor

(12V DC)

• 1 Flue draught fan

(230V AC)

• 1 Grate cleaner motor

(230V AC)

• 1 TKS 1

(firebox and ash box door switch, 24V DC)

• 1 TKS fill level switch

(firebox monitor)

• 1 Stoker drive motor G1

(230V AC)

• 1 Outfeed drive motor A1

(230 VAC)

• 1 Outfeed fan A2

(230V AC)

• 1 Fill level sensor

(12V DC)

• 1 Ignition fan

(230V AC)

• 1 Boiler enabling switch

(emergency off)

• 1 KLP output

(230V AC)

Optional equipment

• 4 Pump outputs

(230V AC)

• 2 Mixer valve outputs

(230V AC)

• 1 Outside temperature sensor input

(KVT20 Ω)

• 1 DHW cylinder sensor input

(KVT20 Ω)

• 2 Flow temperature sensor inputs

(KVT20 Ω)

Resistances

Temperature

in °C

KVT20 in kΩ

Temperature

in °C

PT1000 in kΩ

-16°C

1.434

0 °C

1.000

-8°C

1.537

10 °C

1.039

0 °C

1.644

30 °C

1.117

10 °C

1.783

40 °C

1.155

20 °C

1.928

50 °C

1.194

30 °C

2.078

60 °C

1.232

40 °C

2.234

70 °C

1.271

50 °C

2.395

80 °C

1.309

60 °C

2.563

100 °C

1.385

70 °C

2.735

125 °C

1.480

BIOCOM Installation Instructions

23

RS (HKR 0)

CAN - Bus

HKR 0 230VAC

H

RG 2

SH- L H

CAN - BCE

+ SH - L +

C

A

N

-

B

u

s

RG 0

RG 1

H

CAN - BCE

SH L- +

(Taurus)

KP

SY-BUSSERVICE

BCE

Display

ETHERN. S D-CARD CAN CAN

CAN - Bus

3.2 Wiring requirements

BS-03-02-00-00-01-IAEN

Surge protection Where CAN bus cables run between different buildings, the

earthing conductors of the buildings must be connected to
each other for potential equalisation purposes. If the earthing
conductors cannot be interconnected, a 10 mm rustless ring
earth must be laid along with the CAN bus cable in the
ground. The earthing conductors and ring earth must then be
connected to one another.

Sensor 2 x 1 mm²

Analogue room stat RFF 2 x 1 mm²

CAN bus connecting cable 2 x 2 x 0.5 mm² twisted pair, shielded

More outside-temp. based
controllers can be connected via
CAN bus

Key:

BCE → Control panel
KP → Boiler PCB
HKR → Heating circuit controller
RG → Analogue room stat
RS → Digital room controller

Wiring CAN bus in line Whenever possible, always wire the CAN bus "in line", i.e.

from the display and control unit to heating circuit controller 0
then from there to heating circuit controller 1, and so on. If
wired in a star pattern, the overall length of the CAN bus must
not exceed 100 metres. Wire the CAN bus +/- and H/L
connections with twisted-pair cable in each case.

BIOCOM Installation Instructions

24

3.3 Electrical connections

BS-03-03-00-00-01-IAEN

The electrical connections to the boiler system on site may
only be made by an approved electrical installer observing all
the applicable regulations. In addition, it is essential that
electrical system components are protected against damage
from heat radiation.

All boiler system internal wiring is wired up at the factory ready
for use. The work required on site by the electrical installer
consists only of connecting the mains power and wiring up
and connecting the system components such as thermal
store, CAN bus, heating circuit pumps, mixer valve motors,
etc.

BS-03-03-00-01-01-IAEN

Mains power supply 230 V, 50 Hz, 13 A fuse

The mains power must be connected by means of the
standard non-reversible power socket on the rear panel of the
boiler. It must possible to isolate the system entirely from the
mains without opening the switch panel cover, e.g. by means
of an automatic circuit-breaker.

Correct polarity of the boiler's mains power connection
must be ensured. The live (L) and neutral (N) phases must
not be reversed as otherwise the short-circuit protection
and safety system function cannot be guaranteed.

PH-03-03-00-02-01-IAEN

Opening switch panel Before the switch panel is opened, the boiler mains lead must

be unplugged from the power supply. The system must not be
live.

• Undo switch panel securing screw.

• Lift up front right panel section slightly, unclip and draw

forwards to remove.

• The circuit boards with the associated connectors and
fuses (see electrical wiring diagram) are located
underneath it in an easily accessible position.

• The appropriate cable ducts must be used when
connecting electrical leads.

BIOCOM Installation Instructions

25

PH-03-03-00-03-01-IAEN

Outside-temperature based controller The MKR outside-temperature based heating circuit controller

set is offered as an option and activated on the boiler circuit
board if required. The MK261 wall controller set, on the other
hand, can only be fitted externally and connected to the
system via the CAN bus. Operation and configuration is via
the boiler control panel.

Set MKR The heating circuit controller can be used to control a DHW

cylinder, a pumped heating circuit (HC0) and two mixed
heating circuits (HC1, HC2). If heating circuit 0 is not used, the
"supplementary" function can be used to operate a second
DHW cylinder (HWP) or an external burner (EXTERNAL).

Wall controller set MK261 The wall controller set MK261 must be connected to the

power supply at terminal H35 and connected to the control
panel via the CAN bus.

The wall controller set can be used to control a DHW cylinder,
a pumped heating circuit, 2 mixed heating circuits, one
"supplementary function" (WWP or EXTERNAL) and a "district
heating pipe" function (TSP/CP/FP). If the "supplementary"
and "district heating" functions are not used, heating circuit 0
can be operated as a 3rd mixed circuit.

Analogue room stat The room stat should be connected to the relevant heating

circuit controller input at terminals 1 and 2 (see electrical
wiring diagram).

Digital room controller The room controller must be connected to the control panel

(BCE) or wall controller set MK261 via CAN bus.

3rd mixed heating circuit Can only be activated on wall controller

Heating circuit 0 can only be used as a mixed heating circuit if
the "supplementary" and "district heating" functions are not
activated. Mixer valve 0 (MI 0) is connected to output
terminals H25 and H26 and heating circuit pump 0 (HKP 0) to
terminal H33 on the wall controller. The "district heating pipe"
and "supplementary" functions are then not available.

2. DHW cylinder Can be activated internally and/or on the wall controller.

On the MKR controller set and on the MK261 wall controller
set, an additional DHW cylinder (HWP) can be activated using
the "supplementary" function. The district heating function on
the wall controller set remains available but the 3rd mixed
heating circuit cannot be connected.

External burner request Can be activated internally and/or on the wall controller.

On the MKR controller set and on the MK261 wall controller
set, an external heating boiler (External) can be called for
using the using the "supplementary" function. The load on the
output must not exceed 230VAC and 2.0A. The district
heating function on the wall controller set remains available
but the 3rd mixed heating circuit cannot be connected.

BIOCOM Installation Instructions

26

Boiler cascade Up to four heating boilers can be operated in a cascade

system (sequential control system) and must be connected in­line via a CAN bus. The CAN bus lead must be wired

without connecting the + terminal.

Pay special attention to the section "Wiring requirements,

Wiring CAN bus in line".

BS-03-03-00-04-01-IAEN

Emergency off switch According to prTRVB H 118, it must be possible to switch off

the system using an emergency off switch fitted outside the
boiler room near to the boiler room door. The burner must
then shut down but the heating controller and all safety
equipment must remain functional. Connected to the boiler
enabling switch, terminals 22/23 on the boiler circuit board
(see electrical wiring diagram).

BS-03-03-00-05-01-IAEN

Surge protection We recommend the installation of a power surge protector in

the building's consumer unit.

Pay special attention to the section "Wiring requirements,

Surge protection".

Earthing The entire system is to be joined to the earth circuit conductor

via the connected piping system according to the regulations.

When connecting the earth circuit conductor pay

particular attention to keeping the connecting runs as

short as possible.

Emergency power supply Only use regulated generators.

BIOCOM Installation Instructions

27

4 Final checks/Commissioning

BS-04-00-00-00-01-IAEN

Final checks

• After completing installation of the system, check
again that all joints and pipes are properly tightened
and not leaking.

• Check that all covers are fitted and secured.

• Check that the fitting of all connections (water, flue,

electrical, ...) has been done correctly.

• Check that all required safety signs and instructions
are attached and hand over all documentation
(operating and installation instructions) for the system.

• Check that all electrical connections have been
properly wired before connecting the system to the
power supply.

• Clean the system and clear up the installation site.

• Always leave the boiler room clean.

Initial commissioning

Commissioning must only be carried out by GUNTAMATIC or
a qualified specialist. The precondition is that the flue
technician, heating installer and electrician have cleared the
system for operation. The authorised GUNTAMATIC specialist
will carry out the following work during commissioning:

• Check the entire system

• Check the electrical functions

• Adjust the programmer to the system

• Commission the system

• Explain to the user how the system functions and how

to operate and clean it

• Record the details of the customer and the system
and complete the commissioning log

Important → Any deficiencies identified must be recorded in writing and

rectified within the following 4 weeks in order to maintain
guarantee entitlement.

The fully completed commissioning checklist must be

sent to GUNTAMATIC immediately as otherwise the

guarantee will be void.

Important → These installation instructions should not be destroyed after

commissioning but kept permanently with the system together
with the operating instructions.

BIOCOM Installation Instructions

28

5 Standards/Regulations

BS-05-00-00-00-01-IAEN

The boiler is designed as a Class 3 appliance as defined by the draft standard ÖNORM EN
303-5 (CEN/TC7/WG 1 – Doc. N 36-D) of 15/12/1996 and the agreement of the [Austrian]
Federal States according to Art. 15a BVG, in accordance with the Austrian fire safety
regulations, safety systems, CE and on safety measures for small combustion heating
systems and the combustion heating system approval regulations (LGB.33/1992) of the
Austrian Federal State of Steiermark. The original design approval certificates (BLT
Wieselburg, IBS Linz) are available for inspection at the manufacturer's offices. When
connecting the boiler, the following general, standard and safety regulations must be followed
in addition to the local fire safety and building control requirements:

• ÖNORM EN303-5 Boilers for solid fuels, manually and automatically
stoked, with outputs up to 300 kW; terms, requirements, testing and
identification;

• ÖNORM H 5195-1 Assessment and suitability of the heating water
(minimum requirements for the heating water);

• ÖNORM M 7510 Guidelines for the inspection of central heating
systems;

• ÖNORM M 7550 Central heating boilers up to 100°C – Terms,
requirements, tests, standard identification;

• ÖNORM B 8130 Safety systems;

• ÖNORM B 8131 Sealed water-circulation heating systems, safety

requirements;

• ÖNORM B 8133 Safety requirements, domestic hot water systems;

• pr TRVB H 118 Technical Directive on Preventative Fire Safety

• DIN 4751-1 / Safety systems for heating systems with flow

temperatures up to 110°C (120°C in course of preparation);

• DIN 4751-2 / Water-circulation heating systems – sealed heating
systems with thermostatic safety systems and flow temperatures up
to 120°C – safety systems;

• DIN 4751-4 / Safety systems for domestic hot water systems with flow
temperatures up to 120°C; sealed water-circulation heating systems
with static heads over 15 m or rated heat outputs over 350 kW;

• DIN 1988 Mains water piping systems on building plots, technical
regulations for construction and operation;

• DGVO §7(2) Technical requirements for systems for producing
domestic hot water with a temperature not higher than 110°C which
are stoked by hand with solid fuel;

• HEATING OUTPUT: The heating output is to be selected (set) by the
engineer in accordance with the local heating system regulations so
that the rated heat output does not exceed the heat requirement
determined according to DIN 4701 or ÖNORM M7500;

• Swiss Clean Air Regulations (LRV)

• Swiss Regulations on Small Combustion Heating Systems

• VKF Fire Safety Directive for Heating Systems (Switzerland)

• SIA 384 (Switzerland)

BIOCOM Installation Instructions

29

6 Plumbing diagrams

BC-06-00-00-00-01-IAEN

Diagrams for boiler outputs up to 50 kW

Diagram no.: BC-01-1 BC with high/low temperature system

(2 mixed circuits)

outside-temperature based controller, ECO DHW cylinder

Diagram no.: BC-01-2 BC with high/low temperature system

(3 mixed circuits)

outside-temperature based controller (wall controller), ECO DHW cylinder

Diagram no.: BC-02-2 BC with HT/LT system, PSF thermal store

(inc. WSU)
outside-temperature based controller, PSF thermal store, connected solar
panel system

Diagram no.: BC-03-1 BC with HT/LT system, PS thermal store

outside-temperature based controller, ECO DHW cylinder, PS thermal store

Diagram no.: BC-04-2 BC combined with wood-burning boiler, PSF thermal store

outside-temperature based controller, wood-burning boiler, PSF thermal store

Diagram no.: BC-05-1 BC with HT/LT system, district heating pipe, no thermal store

outside-temperature based controller, ECO DHW cylinder

Diagram no.: BC-06-1 BC with HT/LT system, district heating pipe, PS thermal store

outside-temperature based controller, ECO DHW cylinder, PS thermal store

Diagrams for boiler outputs upwards of 50 kW

Diagram no.: BC-07-2 BC with high/low temperature system, PS thermal store

outside-temperature based controller, ECO DHW cylinder, PS thermal store

Diagram no.: BC-08-2 BC with HT/LT system, PSF thermal store

(inc. WSU)
outside-temperature based controller, PSF thermal store, connected solar
panel system

Diagram no.: BC-10-1 BC with high/low temperature system

outside-temperature based controller, ECO DHW cylinder

Diagram no.: BC-11-2 BC with HT/LT system, district heating pipe, no thermal store

outside-temperature based controller, ECO DHW cylinder

Diagram no.: BC-12-2 BC with HT/LT system, district heating pipe, PS thermal store

outside-temperature based controller, ECO DHW cylinder, PS thermal store

Diagrams for systems supplying multiple properties

(max. 3 properties)

Diagram no.: PH-13-2 Properties supplied via district heating pipe function CP

(charging pump)
per property – 1 outside-temp. based controller, 1 ECO DHW cylinder 1 PS
thermal store

Diagram no.: PH-14-2 Properties supplied via district heating pipe function FP

(feeder
pump)
per property – 1 outside-temp. based controller, 1 ECO DHW cylinder

Diagram no.: PH-15-2 Properties supplied via district heating pipe function TSP

(thermal store pump)
per property – 1 outside-temp. based controller, 1 ECO DHW cylinder 1 PS
thermal store

Diagram for sequential boiler control system

(cascade system)

Diagram no.: PH-16-2 Sequential boiler control system

(boiler cascade system)

for max. 4 boilers

Setting on HP0 menu: → HP0 mode = Feeder pump Heat from biomass 30

230V

Fühlerleitungen

>40°C

1

2

3

7

9

Netz 230 V

AF

WW

HPO

8

HKP0

SF 0

KW

SLP0

M

5

M

5

HKP1 HKP2

4

6

RG0

VF1 VF2

6

RG1

6

RG2

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. BC-01-1

Electrical connections as per operating and installation instructions

• Heating circuit 0 can be used with a fixed-setting controller for a low-temperature heating system or
Heating circuit 0 can be room-temperature controlled using an RFF25 room stat for a radiator
heating system

GUNTAMATIC components

1. BIOCOM boiler

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based controller set MKR Art. no.: S30-031

4. DHW cylinder ECO305 Art. no.: 048-500

5. Mixer valve positioner motor SM70 Art. no.: S50-501

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Branch control valve Not supplied

9. Fault indicator lamp

Imp

ortant: follow wiring diagram!

Not supplied

Diagrams for boiler outputs up to 50 kW

BIOCOM with high/low temperature system

(2 mixed heating circuits)

outside-temperature based c ontroller, ECO DHW cylinder

Settings on HP0 parameters menu: → HP0 mode = Feeder pump Heat from biomass 31

KW

1

2

Netz 230 V

9

7

M

HKP0

VF0

RG0

M

VF2

HKP2

M

HKP1

VF1

HPO

>40°C

8

SF 0

5 5 5

SLP0

9

AF

CAN−Bus

6

Netz 230 V

3

RG1

6

RG2

6

4

WW

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. BC-01-2

Electrical connections as per operating and installation instructions

• With wall controller set MK261, the supplementary output (terminal H25) and the district heating
pipe output (terminal H26) can be used to control heating circuit 0 using a mixer valve motor. The
heating circuit pump is connected to output HKP 0 (terminal H33) and flow temperature sensor 0
to terminal H21/H22. With this configuration option, the district heating pipe and supplementary
functions are not available.

Diagrams for boiler outputs up to 50 kW

BIOCOM with high/low temperature system

(3 mixed heating circuits)

outside-temperature based c ontroller (wall controller), ECO DHW cylinder

GUNTAMATIC components

1. BIOCOM boiler

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based wall controller set MK261 Art. no.: S30-030

4. DHW cylinder ECO305 Art. no.: 048-500

5. Mixer valve positioner motor SM70 Art. no.: S50-501

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Branch control valve Not supplied

9. Fault indicator lamp Important: follow wiring diagram! Not supplied

10. Flow temp. sensor VF20 (VF0 for HK 0)

Art. no.: S70

-

002

Settings on HP0 parameters menu: → HP0 mode = Thermal store pump HP0 sensor = Boiler Heat from biomass 32

2

1

>55°C

3

HP0

Netz 230 V

9

8

AF

7

230V

Fühlerleitungen

T2

11

Option

10

SF

M

5

M

5

HKP0 HKP1 HKP2

Option10

T3

11

12

Netz 230 V

VF1 VF2

RG0

6 6 6

RG1 RG2

WW

4

KW

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. BC-02-2

Electrical connections as per operating and installation instructions

• Heating circuit 0 can be used with a fixed-setting controller for a low-temperature heating system or
Heating circuit 0 can be room-temperature controlled using an RFF25 room stat for a radiator
heating system

Diagrams for boiler outputs

up to 50 kW

BIOCOM with high/low temperature system, PSF thermal store

(inc. water supply unit)

outside-temperature based c ontroller, thermal store PSF, connected solar panel system

GUNTAMATIC components

1. BIOCOM boiler

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based controller set MKR Art. no.: S30-031

4. Thermal store PSF As price list

5. Mixer valve positioner motor SM70 Art. no.: S50-501

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Return boost set RA60 Art. no.: H39-001

Alternatively: RA60 EnergieA Art. no.: H39-003

9. Fault indicator lamp Important: follow wiring diagram! Not supplied

10. Option: 12-hole flange and ridged pipe heat exchanger

11. Thermal store sensor Art. no.: S70-003

12. Option: Secondary return unit Art. no.: 045-250

Settings on HP0 parameters menu: → HP0 mode = Thermal store pump HP0 sensor = Boiler Heat from biomass 33

SLP0

HP0

Netz 230 V

2

1

9

3

>55°C

8

HKP0

5 5

M M

HKP1

VF1

HKP2

VF2

AF

7

230V

Fühlerleitungen

RG0

6

RG1

6 6

RG2

10

WW

Puffer HP0

T2

KW

SF 0

T3

4

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. BC-03-1

Electrical connections as per operating and installation instructions

• Heating circuit 0 can be used with a fixed-setting controller for a low-temperature heating system or
Heating circuit 0 can be room-temperature controlled using an RFF25 room stat for a radiator
heating system

Diagrams for boiler outputs up to 50 kW

BIOCOM with high/low temperature system, PS thermal store

outside-temperature based c ontroller, ECO DHW cylinder, PS thermal store

GUNTAMATIC components

1. BIOCOM boiler

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based controller set MKR Art. no.: S30-031

4. DHW cylinder ECO305 Art. no.: 048-500

5. Mixer valve positioner motor SM70 Art. no.: S50-501

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Return boost set RA60 Art. no.: H39-001

Alternatively: RA60 EnergieA Art. no.: H39-003

9. Fault indicator lamp Important: follow wiring diagram! Not supplied

10. Thermal store PSB As price list

11. Thermal store sensor Art. no.: S70-003

Settings on HP0 parameters menu: → HP0 mode = Thermal store pump HP0 sensor = Boiler Heat from biomass 34

R

a

u

c

h

r

o

h

r

F

e

s

t

s

t

o

f

f

k

e

s

s

e

l

Netz 230 V

2

> 50°C

1

KLP

8

13

RGT

> 88°C

Fühler T2−F, T3−F, T5−F

2

1

Netz 230 V

9

3

>55°C

HP0

8

230V

Fühlerleitungen

7

AF

WW

VF1

HKP1HKP0

55

M M

HKP2

VF2

10

RG1

6

RG0

6 6

RG2

T2−F

T5−F

T3−F

11

11

13 Option

13

Option

T2

Netz 230 V

T3

SF

4

KW

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. BC-04-2

Electrical connections as per operating and installation instructions

• Heating circuit 0 can be used with a fixed-setting controller for a low-temperature heating system or
Heating circuit 0 can be room-temperature controlled using an RFF25 room stat for a radiator
heating system.

• Flue gas monitor (RGT) connected to terminals 22/23 (boiler enabling switch on boiler circuit
board)

Diagrams for boiler outputs up to 50 kW

BIOCOM combined with wood-burning boiler, PSF thermal store

(inc. water supply unit)

outside-temperature based c ontroller, wood-burning boiler, thermal store PSF

GUNTAMATIC components

1. BIOCOM boiler and solid fuel boiler

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based controller set MKR Art. no.: S30-031

4. Thermal store PSF As price list

5. Mixer valve positioner motor SM70 Art. no.: S50-501

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Return boost set RA60 Art. no.: H39-001

Alternatively: RA60 EnergieA Art. no.: H39-003

9. Fault indicator lamp Important: follow wiring diagram! Not supplied

10. Option: Secondary return unit Art. no.: 045-250

11. Thermal store sensor Art. no.: S70-003

12. Flue gas monitor (RGT), switching point 88 °C Art. no.: H00-801

13. Option: 12-hole flange and ridged pipe heat exchanger

Settings on HP0 parameters menu: → HP0 mode = Feeder pump Heat from biomass 35

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. BC-05-1

Electrical connections as per operating and installation instructions

• Heating circuit 0 can be used with a fixed-setting controller for a low-temperature heating system or
Heating circuit 0 can be room-temperature controlled using an RFF25 room stat for a radiator
heating system

Diagrams for boiler outputs up to 50 kW

BIOCOM with high/low temperature system, district heating pipe, no thermal store

outside-temperature based c ontroller, ECO DHW cylinder

GUNTAMATIC components

1. BIOCOM boiler

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based controller set MKR Art. no.: S30-031

4. DHW cylinder ECO305 Art. no.: 048-500

5. Mixer valve positioner motor SM70 Art. no.: S50-501

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Return boost set RA60 Art. no.: H39-001

Alternatively: RA60 EnergieA Art. no.: H39-003

9. Fault indicator lamp Important: follow wiring diagram! Not supplied

10. Flow equaliser Not supplied

11. District heating pipe Not supplied

SF 0

1

10

11

KW

Fühlerleitungen

Netz 230 V

2

3

>55°C

HP0

8

9

AF

7

230V

HKP0

MM

5 5

HKP1 HKP2 SLP0

VF1 VF2

RG0

6 6

RG1

6

RG2

WW

4

Settings on HP0 parameters menu: → HP0 mode = Thermal store pump HP0 sensor = Boiler Heat from biomass 36

2

1

3

Netz 230 V

9

>55°C

HP0

8

11

HKP0

5

M M

HKP1

5

VF1

HKP2

VF2

AF

7

Fühlerleitungen

230V

RG0

6 6

RG1 RG2

6

10

Puffer HP0

SLP0

T2

KW

SF 0

T3

WW

4

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. BC-06-1

Electrical connections as per operating and installation instructions

• Heating circuit 0 can be used with a fixed-setting controller for a low-temperature heating system or
Heating circuit 0 can be room-temperature controlled using an RFF25 room stat for a radiator
heating system

Diagrams for boiler outputs up to 50 kW

BIOCOM with high/low temperature system, district heating pipe, PS thermal store

outside-temperature based c ontroller, ECO DHW cylinder, PS thermal store

GUNTAMATIC components

1. BIOCOM boiler

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based controller set MKR Art. no.: S30-031

4. DHW cylinder ECO305 Art. no.: 048-500

5. Mixer valve positioner motor SM70 Art. no.: S50-501

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Return boost set RA60 Art. no.: H39-001

Alternatively: RA60 EnergieA Art. no.: H39-003

9. Fault indicator lamp Important: follow wiring diagram! Not supplied

10. Thermal store PSB As price list

11. District heating pipe Not supplied

12. Thermal store sensor Art. no.: S70-003

Settings on HP0 parameters menu: → HP0 mode = Thermal store pump HP0 sensor = Boiler Heat from biomass 37

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. BC-07-2

Electrical connections as per operating and installation instructions

• Heating circuit 0 can be used with a fixed-setting controller for a low-temperature heating system or
Heating circuit 0 can be room-temperature controlled using an RFF25 room stat for a radiator
heating system

Diagrams for boil

er outputs upwards of 50 kW

BIOCOM with high/low temperature system, PS thermal store

outside-temperature based c ontroller, ECO DHW cylinder, PS thermal store

GUNTAMATIC components

1. BIOCOM boiler

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based controller set MKR Art. no.: S30-031

4. DHW cylinder ECO305 Art. no.: 048-500

5. Mixer valve positioner motor SM70 Art. no.: S50-501

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Return boost set RA100 EnergieA Art. no.: H39-010

9. Fault indicator lamp Important: follow wiring diagram! Not supplied

10. Thermal store PSB As price list

11. Thermal store sensor Art. no.: S70-003

2

1

>55°C

Netz 230 V

9

3

Netz 230 V

M

8

HP0

Fühlerleitungen

230V

AF

7

5

M

HKP0 HKP1

VF1

5

M

HKP2

VF2

SLP0

11

11

T2

Puffer HP0

T3

10

KW

SF 0

WW

4

RG0

6

RG1

6

RG2

6

Settings on HP0 parameters menu: → HP0 mode = Thermal store pump HP0 sensor = Boiler Heat from biomass 38

1

2

>55°C

3

9

Netz 230 V

AF

7

230V

Fühlerleitungen

4

WW

11

T2

10

10

Netz 230 V

M

8

HP0

M

5

M

5

HKP0 HKP1

VF1

HKP2

12

VF2

Option

Option

11

T3

SF

Netz 230 V

RG1RG0

6 6

RG2

6

KW

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. BC-08-2

Electrical connections as per operating and installation instructions

• Heating circuit 0 can be used with a fixed-setting controller for a low-temperature heating system or
Heating circuit 0 can be room-temperature controlled using an RFF25 room stat for a radiator
heating system

Diagrams for boiler outputs upwards of 50 kW

BIOCOM with high/low temperature system, PSF thermal store

(inc. water supply unit)

outside-temperature based c ontroller, thermal store PSF, connected solar panel system

GUNTAMATIC components

1. BIOCOM boiler

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based controller set MKR Art. no.: S30-031

4. Thermal store PSF As price list

5. Mixer valve positioner motor SM70 Art. no.: S50-501

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Return boost set RA100 EnergieA Art. no.: H39-010

9. Fault indicator lamp Important: follow wiring diagram! Not supplied

10. Option: 12-hole flange and ridged pipe heat exchanger

11. Thermal store sensor Art. no.: S70-003

12. Option: Secondary return unit Art. no.: 045-250

Settings on HP0 parameters menu: → HP0 mode = Feeder pump Heat from biomass 39

KW

>40°C

1

2

3

HP0

8

HKP0

5 5

M M

HKP1 HKP2 SLP0

Netz 230 V

9

AF

7

230V

Fühlerleitungen

VF1 VF2

6

RG0

6 6

RG1 RG2

WW

SF 0

4

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. BC-10-1

Electrical connections as per operating and installation instructions

• Heating circuit 0 can be used with a fixed-setting controller for a low-temperature heating system or
Heating circuit 0 can be room-temperature controlled using an RFF25 room stat for a radiator
heating system

Diagrams for boiler outputs upwards of 50 kW

BIOCOM with high/low temperature system

outside-temperature based c ontroller, ECO DHW cylinder

GUNTAMATIC components

1. BIOCOM boiler

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based controller set MKR Art. no.: S30-031

4. DHW cylinder ECO305 Art. no.: 048-500

5. Mixer valve positioner motor SM70 Art. no.: S50-501

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Recommended pump Wilo EAS/6-3 P Art. no.: H39-101

9. Fault indicator lamp Important: follow wiring diagram! Not supplied

Settings on HP0 parameters menu: → HP0 mode = Feeder pump Heat from biomass 40

1

2

>55°C

3

SF 0

Netz 230 V

M

10

11

KW

HKP0

8

HP0

M

5

M

5

HKP1 HKP2 SLP0

4

WW

Netz 230 V

9

AF

7

230V

Fühlerleitungen

666

VF1 VF2

RG0 RG1 RG2

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. BC-11-2

Electrical connections as per operating and installation instructions

• Heating circuit 0 can be used with a fixed-setting controller for a low-temperature heating system or
Heating circuit 0 can be room-temperature controlled using an RFF25 room stat for a radiator
heating system

Diagrams for boiler outputs upwards of 50 kW

BIOCOM with high/low temperature system, district heating pipe, no thermal store

outside-temperature based c ontroller, ECO DHW cylinder

GUNTAMATIC components

1. BIOCOM boiler

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based controller set MKR Art. no.: S30-031

4. DHW cylinder ECO305 Art. no.: 048-500

5. Mixer valve positioner motor SM70 Art. no.: S50-501

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Return boost set RA100 EnergieA Art. no.: H39-010

9. Fault indicator lamp Important: follow wiring diagram! Not supplied

10. Flow equaliser Not supplied

11. District heating pipe Not supplied

Settings on HP0 parameters menu: → HP0 mode = Thermal store pump HP0 sensor = Boiler Heat from biomass 41

2

1

>55°C

3

Netz 230 V

9

8

Netz 230 V

M

HP0

Fühlerleitungen

AF

7

230V

10

11

M

HKP0 HKP1

5

VF1

5

M

SLP0HKP2

VF2

T2

Puffer HP0

T3

KW

SF 0

WW

4

6

RG0 RG1

6

RG2

6

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. BC-12-2

Electrical connections as per operating and installation instructions

• Heating circuit 0 can be used with a fixed-setting controller for a low-temperature heating system or
Heating circuit 0 can be room-temperature controlled using an RFF25 room stat for a radiator
heating system

Diagrams for boiler outputs upwards of 50 kW

BIOCOM with high/low temperature system, district heating pipe, PS thermal store

outside-temperature based c ontroller, ECO DHW cylinder, PS thermal store

GUNTAMATIC components

1. BIOCOM boiler

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based controller set MKR Art. no.: S30-031

4. DHW cylinder ECO 305 Art. no.: 048-500

5. Mixer valve positioner motor SM70 Art. no.: S50-501

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Return boost set RA100 EnergieA Art. no.: H39-010

9. Fault indicator lamp Important: follow wiring diagram! Not supplied

10. Thermal store PSB As price list

11. District heating pipe Not supplied

Settings on HP0 parameters menu: → HP0 mode = Thermal store pump Heat from biomass 42

Netz

1

2

CAN−Bus

7

Heizraum

T3

Puffer HP0

8

HP0

12

>55°C

10

T2

Puffer 1

5

T2−1

RG6

3

Netz 230 V

HKR 2

LAP

9

CAN−Bus

*

Puffer 2

T3−2

HKP6

5

10

T2−2

9

LAP

HKP3

13

13

Fernleitung 2 auf LAP einstellen

Haus 2

Fernleitung 1 auf LAP einstellen

WW

4

11

SF 1

M

KW

6

RG8

M

RG7

VF8

HKP8 SLP2

SF 2

M

11

4

WW

VF7

HKP7

M

KW

RG5

6

VF5

RG4

VF4

HKP5HKP4 SLP1

RG0

3

Netz 230 V

AF

HKR 0

CAN−Bus

**

Puffer 0

T3−0

5

HKP0

T2−0

RG3

3

Netz 230 V

HKR 1

9

LAP

CAN−Bus

*

T3−1

10

10

13

Haus 1

Fernleitung 0 auf LAP einstellen

Haus 0

6

RG2RG1

WW

VF2

4

11

SF 0

M

HKP2 SLP0

VF1

M

HKP1

KW

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. PH-13-2

Electrical connections as per operating and installation instructions

System supplying a maximum of 3 properties

(suitable for POWERCHIP, BIOCOM and POWERCORN)

District heating pipe function CP

(charging pump)

Per property – 1 outside-temperature based controller, 1 ECO DHW cylinder, 1 PS thermal store

GUNTAMATIC components

1. Powerchip, Powercorn or Biocom 75/100 kW

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based wall controller set MK261 Art. no.: S30-030

4. DHW cylinder ECO305 Art. no.: 048-500

5. Thermal store PSB As price list

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Return boost set RA100 EnergieA Art. no.: H39-010

9. Dimension charging pumps according to length of piping run
e.g. Grundfos UPS 32-60 or W ilo 30/7 Not supplied

10. Fault indicator lamp Important: follow wiring diagram! Not supplied

11. Mixer valve positioner motor SM70 Art. no.: S50-501

12. Thermal store PS 2000/2PS As price list

13. District heating pipe Not supplied

max. 3 MK261 wall controller sets possible (HKR0, HKR1, HKR2)
max. 3 RS100 room controllers possible
one RFF25 room stat per heating circuit possible
Always connect outside sensor (AF) to HKR 0

Settings on HP0 parameters menu: → HP0 mode = Thermal store pump Heat from biomass 43

CAN−Bus max. 100 m

1

2

7

Heizraum

T3

Puffer HP0

12

10

Netz

>55°C

8

HP0

T2

Haus 1

HKP3

5

RG6

3

Netz 230 V

ZUP

9

CAN−Bus

**

10

HKP6

5

HKR 2

ZUP

9

13

13

Fernleitung 2 auf ZUP einstellen

Haus 2

Fernleitung 1 auf ZUP einstellen

VF4 VF 5

SLP1

SF 1

M

4

KW

6

HKP4

M

RG7 RG8

11

HKP5

SLP2

SF 2

M

4

WW

VF7

HKP7

M

11

HKP8

VF8

KW

6

RG4 RG5

WW

RG0

Netz 230 V

3CAN−Bus

**

10

HKP0

5

RG3

3

Netz 230 V

ZUP

9

CAN−Bus

**

10

HKR 1

AF

HKR 0

13

Fernleitung 0 auf ZUP einstellen

Haus 0

6

RG1 RG2

SLP0

SF 0

M

4

WW

VF1

HKP1

M

11

HKP2

VF2

KW

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. PH-14-2

Electrical connections as per operating and installation instructions

System supplying a maximum of 3 properties

(suitable for POWERCHIP, BIOCOM and POWERCORN)

District heating pipe function FP

(feeder pump)

Per property – 1 outside-temperature based controller, 1 ECO DHW cylinder

GUNTAMATIC components

1. Powerchip, Powercorn or Biocom 75/100 kW

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based wall controller set MK261 Art. no.: S30-030

4. DHW cylinder ECO305 Art. no.: 048-500

5. Flow equaliser according to required output Not supplied

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Return boost set RA100 EnergieA Art. no.: H39-010

9. Dimension feeder pumps according to length of piping run
e.g. Grundfos UPS 32-60 or W ilo 30/7 Not supplied

10. Fault indicator lamp Important: follow wiring diagram! Not supplied

11. Mixer valve positioner motor SM70 Art. no.: S50-501

12. Thermal store PS 2000/2PS As price list

13. District heating pipe Not supplied

max. 3 MK261 wall controller sets possible (HKR0, HKR1, HKR2)
max. 3 RS100 room controllers possible
one RFF25 room stat per heating circuit possible
Always connect outside sensor (AF) to HKR 0

Setting on HP0 parameters menu: → HP0 mode = Feeder pump Heat from biomass 44

Netz

2

1

CAN−Bus max. 100 m

7

Heizraum

13

10

8

>55°C

HP0

PUP

RG3

HKP3

HKP6

RG6

Netz 230 V

3CAN−Bus

10

HKR 1

*

T3−1

5

Puffer 1

T2−1

Netz 230 V

3

9

PUP

CAN−Bus

10

HKR 2

*

T3−2

5

Puffer 2

T2−2

9

PUP

12

12

Fernleitung 2 auf PUP einstellen

Haus 2

Fernleitung 1 auf PUP einstellen

Haus 1

6

RG4 RG5

VF4 VF5

WW

SLP1

4

SF 1

RG0

HKP0

10

HKR 0

**

AF

6

KW

HKP4 HKP5

11

MM

WW

SLP2

SF 2

4

VF8VF7

HKP7 HKP8

MM

11

RG7 RG8

KW

5

Puffer 0

T3−0

T2−0

9

3

CAN−Bus

Netz 230 V

12

Fernleitung 0 auf PUP einstellen

Haus 0

6

WW

SLP0

4

SF 0

RG1 R G2

VF1 VF2

HKP1 HKP2

MM

11

KW

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. PH-15-2

Electrical connections as per operating and installation instructions

System supplying a maximum of 3 properties

(suitable for POWERCHIP, BIOCOM and POWERCORN)

District heating pipe function TSP

(thermal store pump)

Per property – 1 outside-temperature based controller, 1 ECO DHW cylinder, 1 PS thermal store

GUNTAMATIC components

1. Powerchip, Powercorn or Biocom 75/100 kW

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. Outside temp. based wall controller set MK261 Art. no.: S30-030

4. DHW cylinder ECO305 Art. no.: 048-500

5. Thermal store PSB As price list

6. Room stat RFF25 Art. no.: S70-006

7. GSM module Art. no.: S15-002

8. Return boost set RA100 EnergieA Art. no.: H39-010

9. Dimension pumps according to length of piping run
e.g. Grundfos UPS 32-60 or W ilo 30/7 Not supplied

10. Fault indicator lamp Important: follow wiring diagram! Not supplied

11. Mixer valve positioner motor SM70 Art. no.: S50-501

12. District heating pipe Not supplied

13. Flow equaliser Not supplied

max. 3 MK261 wall controller sets possible (HKR0, HKR1, HKR2)
max. 3 RS100 room controllers possible
one RFF25 room stat per heating circuit possible
Always connect outside sensor (AF) to HKR 0

Set output HP0 to thermal store pump for each system Heat from biomass 45

44

M

Netz 230 V

>55°C

1

2

1

2

HP0

M

Netz 230 V

HP0

>55°C

T2

6

M

Netz 230 V

Netz

CAN−Bus

Netz

3

Kessel A

>55°C

4

2

1

C

A

N

−

B

u

s

1

2

HP0

Netz

CAN−Bus

Netz

Kessel C

M

Netz 230 V

Kessel B

4

HP0

5

Puffer HP0

>55°C

Kessel D

T3

6

Tel. 07276 / 2441-0

[e-mail]

www.guntamatic.com

Diagram no. PH-16-2

Electrical connections as per operating and installation instructions

Sequential boiler control system (boiler cascade system) for maximum of 4 b

oilers

(suitable for POWERCHIP, BIOCOM and POWERCORN)

GUNTAMATIC components

1. Powerchip, Powercorn or Biocom 75/100 kW

2. Flue draught regulator RE (size to suit flue diameter) As price list

3. GSM module Art. no.: S15-002

4. Return boost set RA100 EnergieA Art. no.: H39-010

5. Thermal store PS 2000/2PS As price list

6. Thermal store sensor Art. no.: S70-003

2 thermal store sensors required for each boiler
Connect all boilers via CAN bus
max. 3 MK261 wall controller sets per system possible (HKR0, HKR1, HKR2)
max. 3 RS100 room controllers per system possible
one RFF25 room stat per heating circuit possible
Always connect outside sensor (AF) to heating circuit controller 0 (HKR 0)

Important: The CAN bus must be wired without connecting the + terminal.
Note: Only one boiler can be controlled/queried remotely via the GSM

module. However, faults are forwarded to the GSM module via
the CAN bus.

Heating circuit
installation:

Diagram PH-13-2
with charging pump (LAP)
and thermal store

Diagram PH-14-2
with feeder pump (ZUP) and
without thermal store

BIOCOM Installation Instructions

46

7 Electrical wiring diagram

BS-07-00-00-00-01-IAEN

7.1 Control panel

(use only flexible cables for wiring)

TH-07-01-00-00-01-IAEN

BCE = Display and control unit (touch screen)
Service = Connection socket
SY-BUS = Connection socket/cable connection betw. BCE and boiler PCB
Ethern. = Connection socket (inactive)
SD-Card = Slot for SD memory card
CAN = Connection socket for CAN bus
CAN-Bus = Cable connection between BCE and digital room controller or wall controller
GSM = Facility for connecting a GSM module
Visu. = Facility for connecting a graphical boiler interface
KP = Cable connection to boiler circuit board (SY bus)

Caution: It is imperative that the vacuum pipes are earthed on the vacuum pump and the outfeed auger.

BIOCOM Installation Instructions

47

7.2 Wall controller set MK261

(use only flexible cables for wiring)

PH-07-02-00-00-01-IAEN

RG 0-8 = Analogue room stat input for HC 0-8 Connector: H1/H2 – H3/H4 - H5/H6
AF = Connect only if not connected on boiler PCB Connector: H7/H8
VF 1, 2, 4, 5, 7, 8 = Flow sensor input for heating circuit 1, 2, 4, 5, 7, 8 Connector: H9/H10 - H11/H12
SF 0-3 = Cylinder sensor input for DHW cylinder 0, 1, 2 Connector: H13/H14
ZSF 0-2 = Supplementary cylinder sensor input Connector: H15/H16
T2 = Thermal store bottom sensor input Connector: H17/H18
T3 = Thermal store top sensor input Connector: H19/H20
VF 0, 3, 6 = Flow temperature sensor input for heating circuits 0, 3, 6 Connector: H21/H22
ZU 0, 1, 2 = Output programmable as ext. burner or DHW cylinder Connector: H25/PE/N
FL 0, 1, 2 = Output for district heating pipe pump Connector: H26/PE/N
HKP 0-8 = Output for heating circuit pump 0-8 Connector: H27/PE/N (H28, H33)
Mi 1, 2, 4, 5, 7, 8 = Output for mixer valve 1, 2, 4, 5, 7, 8 Connector: H29/PE/N/H30, H31/PE/N/H32
SLP 0-3 = Output for cylinder charging pump 0, 1, 2 Connector: H34/PE/N
Netz = Power supply input (230VAC) Connector: H35/PE/N
FFR = District heating pipe enabling switch Connector: H36/PE/H37
SMA = Output for fault signal (9.2V= 20mA) Connector: H38/H39
RS = Output for digital room controller Connector: CAN-BCE

Standard setting for S1:

both DIP switches "ON"

Caution:

Change to S2 setting only
effective after switching mains
power OFF and ON

Function of LEDs

Controller on, CAN bus cable correctly connected:

LED → H5 (green) should light up
LED → H6, H7 (orange) should flash

Mains power and fuse F1 are OK

LED → H1, H4 (green) should light up
LED → H2, H3 (green) should flash

Fuse assignment for wall controller

F1 T 0.63A Power supply for electronics

F2 T 6.30A

HKP 0, HKP 1, HKP 2, MI 1, MI

2, SLP 0

Connection on room stat

Connect contacts 1 and 2

Mixer valve al

ternative (0, 3, 6):

Only possible if output FL and

output ZU are not required.

BIOCOM Installation Instructions

48

7.3 Boiler circuit board

(use only flexible cables for wiring)

BC-07-03-00-00-01-IAEN

RG 0 (1, 2) = Analogue room stat input for HC 0 (1, 2) Connector: H1/H2 (H3/H4, H5/H6)
AF = Outside sensor input Connector: H7/H8
VF 2 (1) = Flow temperature sensor input for heating circuit 2 (1) Connector: H9/H10 (H11/H12)
SF 0 = Cylinder sensor input for DHW cylinder 0 Connector: H13/H14
ZSF 0 = Supplementary cylinder sensor input (output HK 0 as DHW) Connector: H15/H16
T1 = Boiler sensor input Connector: 39/40
T2 = Thermal store bottom sensor input Connector: 31/32
T3 = Thermal store top sensor input Connector: 33/34
STF = Stoker sensor input (stoker temperature monitor) Connector: 37/38
RGT = Flue gas temp. sensor input (ensure correct polarity) Connector: 41/42
FZ = Fill level switch input (fire box monitor) Connector: 43/44
Hall REI = Hall-effect sensor input from drive motor REI Connector: 45/46/47
Hall G1 = Hall-effect sensor input from drive motor G1 Connector: 48/49/50
SMA = Output for fault signal (24V DC 200mA) Connector: 52/53
Lambda = Oxygen sensor input Connector: 63/64/65/66
TKS 1 = Input for door switch 1 (firebox door/ash box) Connector: 26/PE/27
FÜS = Fill-level sensor input Connector: 28/29/30
ZG = Ignition fan output (1=Fan, 2=Igniter) Connector: 1/PE/N/2
SG = Flue draught fan output Connector: 3/PE/N
Netz = Power supply input (230VAC) Connector: 4/PE/N
Power I/O = Power switch input/output Connector: 6/7
STB = STL input/output Connector: 8/PE/9
G1 = Output for stoker drive motor Connector: 13/PE/N
REI = Output for drive motor for stepped grate and grate cleaner Connector: 14/PE/N
A1 = Output for fuel outfeed drive motor Connector: 15/PE/N
HP 0 = Programmable special output Connector: 20/PE/N
A2 = Output for vacuum pump Connector: 21/PE/N
KFR = Boiler enabling switch input Connector: 22/PE/23
HKP 2 (1, 0) = Output for heating circuit pump 2 (1, 0) Connector: H27/PE/N H28, H33
ZU 0 = Programmable as 2nd DHW cylinder or ext. burner Connector: H33/PE/N
Mi 2 (1) = Output for mixer valve 2 (1) Connector: H29/PE/N/H30, H31/PE/N/H32)
SLP 0 = Output for cylinder charging pump 0 Connector: H34/PE/N

Fuse assignment for boiler PCB

F1 T 4A REI

F2 T 4A A1

F3 T 2A STB, Power, KFR

F4 T 6.3A

HKP 0, HKP 1, HKP 2, SLP 0,
Mi 1, Mi 2

F5 T 10A HP 0, A2, ZG

F6 T 4A G1, SG

Connection on room stat

Connect contacts 1 and 2

BIOCOM Installation Instructions

49

8 Technical data

BS-08-00-00-00-01-IAEN

8.1 BIOCOM 30/40/50

BC-08-01-00-00-01-IAEN

Type Biocom 30 Biocom 40 Biocom 50

Fuel Pellets, 6mm Pellets, 6mm Pellets, 6mm ÖNORM M7135

Boiler output 7 - 30 9 - 40 12 - 50 kW

Required flue draught
Boiler temperature
Return temperature
Return boost

0,15

50 – 80

> 40 → Feeder pump

if thermal store

connected

0,15

50 – 80

> 40 → Feeder pump

if thermal store

connected

0,15

50 – 80

> 40 → Feeder pump

if thermal store

connected

mbar

°C
°C

Water capacity
Operating pressure

128

max. 3

128

max. 3

147

max. 3

litres

bar

Water system resistance
Temperature difference 20 K

Through-flow rate

1290

Water temp. 22.5

Differential pressure

3.8

Through-flow rate

1710

Water temp. 38.6

Differential pressure

13.5

Through-flow rate

2180

---

Differential pressure

6.2

kg/h

°C

mbar

Water system resistance
Temperature difference 10 K

Through-flow rate

2570

Water temp. 22.5

Differential pressure

14.2

Through-flow rate

3430

Water temp. 38.7

Differential pressure

28.3

Through-flow rate

4257

---

Differential pressure

24.7

kg/h

°C

mbar

"Large" ash pan
"Small" ash pan

60
12

60
12

60
12

litres
litres

A = Temp.-relief heat exch.
B = Return
C = Temp.-relief heat exch.
D = STL, boiler sensor
E = Drain
F = Flow
G = Flue connecting pipe
dia.

Sensor

5/4“
3/4“

Sensor

1/2“
5/4“
150

Sensor

5/4“
3/4“

Sensor

1/2“
5/4“
150

Sensor

5/4“
3/4“

Sensor

1/2“
5/4“
150

Inches
Inches

Inches
Inches

mm

Overall weight w/o
Stoker unit
Weight of bottom box
Weight of heat exchanger
Weight of stoker unit
Weight of drive unit
Weight per m of outfeed
auger

550
340
180

70
26
40

553
340
183

70
26
40

585
340
215

70
26
40

kg
kg
kg
kg
kg
kg

Temperature-relief heat
exchanger

Yes Yes Yes

Power supply 230 V 13 A 230 V 13 A 230 V 13 A

BIOCOM Installation Instructions

50

BIOCOM 75/100

BC-08-02-00-00-01-IAEN

Type Biocom 75 Biocom 100

Fuel Pellets, 6mm Pellets, 6mm ÖNORM M7135

Boiler output 22 - 75 22 -100 kW

Required flue draught
Boiler temperature
Return temperature
Return boost

0.15

60 - 80

> 45 → Feeder pump

if thermal store connected

0.15

60 - 80

> 45 → Feeder pump

if thermal store connected

mbar

°C
°C

Water capacity
Operating pressure

256

max. 3

256

max. 3

litres

bar

Water system resistance
Temperature difference 20 K

Through-flow rate 4240

Water temp. 24.2

Differential pressure 2.5

Through-flow rate 4240

Water temp. 24.2

Differential pressure 2.5

kg/h

°C

mbar

Water system resistance
Temperature difference 10 K

Through-flow rate 8490

Water temp. 24.2

Differential pressure 6.2

Through-flow rate 8490

Water temp. 24.2

Differential pressure 6.2

kg/h

°C

mbar

Ash pan, grate
Ash pan, "heat exchanger"

80
12

80
12

litres
litres

A
B
C
D
E
G

Flow, 2"

Temp.-relief heat exch., 3/4"

Supplementary sleeve, 2"Drain,

1/2"

Return, 2"

Flue connection pipe dia. 180

Flow, 2"

Temp.-relief heat exch., 3/4"

Supplementary sleeve, 2"Drain,

1/2"

Return, 2"

Flue connection pipe dia. 180

Inches
Inches
Inches
Inches
Inches

mm

Overall weight (w/o stoker unit)
Weight of bottom box
Weight of heat exchanger
Weight of stoker unit
Weight of drive unit
Weight per m of outfeed auger

865
430
405

70
26
40

865
430
405

70
26
40

kg
kg
kg
kg
kg
kg

Temperature-relief heat exchanger Yes Yes

Power supply 230 V / 13 A 230 V / 13 A

BIOCOM Installation Instructions

51

8.2 FLEX system outfeed

BC-08-03-00-00-01-IAEN

Wall opening for auger: Width 330 mm
Height 250 mm

8.3 BOX system outfeed

BC-08-04-00-00-01-IAEN

Dimension A > Auger

length

Dimension B > Storeroom

internal clear length

FLEX 1.0 m 1080 mm – 1559 mm

FLEX 1.5 m 1560 mm – 2039 mm

FLEX 2.0 m 2040 mm – 2519 mm

FLEX 2.5 m 2520 mm – 2999 mm

FLEX 3.0 m 3000 mm – - 3479 mm

FLEX 3.5 m 3480 mm – 3959 mm

FLEX 4.0 m 3960 mm – 4439 mm

FLEX 4.5 m 4440 mm – 4919 mm

FLEX 5.0 m 4920 mm - .

Dimension A - B Dimension C (variable) Hopper capacity in m³ Hopper capacity in

t

BOX 7.5 210 cm x 210 cm 180 cm - 250 cm 5.0 m³ to 7.5 m³ 3.0 t to 4.7 t

BOX 8.3 170 cm x 290 cm 180 cm - 250 cm 6.1 m³ to 8.3 m³ 4.0 t to 5.4 t

BOX 11 250 cm x 250 cm 180 cm - 250 cm 8.3 m³ to 11 m³ 5.0 t to 6.7 t

BOX 14 290 cm x 290 cm 180 cm - 250 cm 10.2 m³ to 14.1 m³ 6.5 t to 9.1 t

BIOCOM Installation Instructions

52

BS-E-00-00-00-01-BAEN

GUNTAMATIC Heiztechnik GmbH

A – 4722 PEUERBACH Bruck 7

Tel: [phone] / 2441-0

Fax: [phone] / 3031

E-mail: [e-mail]