Fröling RS4 User manual

model
fire protection package
Installation and operating instructions
RS4 Manual Pellet Suction System
Translation of original German version of installation and operating instructions for technicians and
operators.
Read and follow all instructions and safety instructions.
All errors and omissions excepted.
M1840321_en | Edition 14/05/2021

Table of Contents
ii M1840321_en | Installation and operating instructions RS4 Manual Pellet Suction System
1 General ......................................................................................................................................................... 4
2 Safety............................................................................................................................................................ 5
2.1 Hazard levels of warnings..................................................................................................................... 5
2.2 Permitted uses...................................................................................................................................... 6
2.2.1 Permitted fuels........................................................................................................................... 6
2.3 Qualification of assembly staff .............................................................................................................. 7
2.4 Personal protective equipment for assembly staff ................................................................................ 7
2.5 Qualification of operating staff .............................................................................................................. 8
2.6 Protective equipment for operating staff ............................................................................................... 8
2.7 Design information................................................................................................................................ 8
2.7.1 Standards................................................................................................................................... 8
2.7.2 Requirements at the installation site.......................................................................................... 9
3 Technical information ................................................................................................................................. 10
3.1 Dimensions and recommended distances............................................................................................ 10
4 Store layout and construction.................................................................................................................... 12
4.1 Size of store space ............................................................................................................................... 13
4.2 Buffer mat ............................................................................................................................................. 13
4.3 Planking on the store door.................................................................................................................... 14
4.4 Sloping floor.......................................................................................................................................... 14
4.5 Filling couplings .................................................................................................................................... 15
4.5.1 Position within the store............................................................................................................. 15
4.5.2 Installing the filling couplings ..................................................................................................... 16
4.6 Probe distribution with four suction probes........................................................................................... 17
4.6.1 Store size up to 4m²................................................................................................................... 17
4.6.2 Store size from 4 m²................................................................................................................... 18
4.7 Store pyramids (optional)...................................................................................................................... 19
5 Installation.................................................................................................................................................... 20
5.1 Materials supplied................................................................................................................................. 20
5.2 Transport .............................................................................................................................................. 21
5.3 Temporary storage ............................................................................................................................... 21
5.4 Fitting the fire protection package......................................................................................................... 22
5.5 Manual installation of RS4 pellet suction system................................................................................. 24
5.6 Installing the suction probes and lines.................................................................................................. 24
5.7 Sealing the fire protection panels (for fire protection package) ............................................................ 26
5.8 Hose feed-through to boiler room (depending on model) ..................................................................... 27
5.8.1 Installing the fire protection collar in the boiler room.................................................................. 27
5.9 Installing fuel store pyramid(s) (optional).............................................................................................. 27
5.10 Assembly information for hose lines..................................................................................................... 28
5.10.1 Potential equalisation................................................................................................................. 29
5.11 Installation information for hose clips (optional).................................................................................... 30
5.12 Configuring the discharge system in the controller............................................................................... 30
6 Operating the system.................................................................................................................................. 31
6.1 Initial startup ......................................................................................................................................... 31
6.2 Changing the suction point in the fuel store.......................................................................................... 31
6.3 Suction hose backwash ........................................................................................................................ 32
6.4 Decommissioning ................................................................................................................................. 32

Table of Contents
M1840321_en | Installation and operating instructions RS4 Manual Pellet Suction System iii
6.4.1 Disassembly............................................................................................................................... 32
6.4.2 Disposal ..................................................................................................................................... 32

1 | General
4 M1840321_en | Installation and operating instructions RS4 Manual Pellet Suction System
1 General
Thank you for choosing a quality product from Froling. The product features a state-of-
the-art design and conforms to all currently applicable standards and testing
guidelines.
Please read and observe the documentation provided and always keep it close to the
system for reference. Observing the requirements and safety information in the
documentation makes a significant contribution to safe, appropriate, environmentally
friendly and economical operation of the system.
The constant further development of our products means that there may be minor
differences from the pictures and content. If you discover any errors, please let us
know: [email protected].
Subject to technical change.
Warranty and Guarantee Conditions
Our sale and delivery conditions will be applicable. These conditions have been made
available to customers, and customers have been made aware of them at the time of
order completion.

Safety | 2
M1840321_en | Installation and operating instructions RS4 Manual Pellet Suction System 5
2 Safety
2.1 Hazard levels of warnings
This documentation uses warnings with the following hazard levels to indicate direct
hazards and important safety instructions:
DANGER
The dangerous situation is imminent and if measures are not observed it will lead
to serious injury or death. You must follow the instructions!
WARNING
The dangerous situation may occur and if measures are not observed it will lead to
serious injury or death. Work with extreme care.
CAUTION
The dangerous situation may occur and if measures are not observed it will lead to
minor injuries.
NOTICE
The dangerous situation may occur and if measures are not observed it will lead to
damage to property or pollution.

2 | Safety
6 M1840321_en | Installation and operating instructions RS4 Manual Pellet Suction System
2.2 Permitted uses
The Froling RS4 manual pellet suction system is solely designed for discharging fuels
from suitable stores. Only use fuels specified in the “Permitted fuels” section.
The unit should only be operated when it is in full working order. It must be operated in
accordance with the instructions, observing safety precautions, and you should ensure
you are aware of the potential hazards. The inspection and cleaning intervals in the
operating instructions must be observed. Ensure that any faults which might impair safety
are rectified immediately.
The manufacturer or supplier is not liable for any damage resulting from non-permitted
uses.
Only original spare parts or specific alternative spare parts authorised by the
manufacturer may be used. Any kind of change or modification made to the product will
invalidate its manufacturer’s CE conformity. In such cases, the product will need to
undergo new hazard evaluation procedures by the operator. The operator will then be
fully responsible for the declaration of conformity according to the valid guideline(s) for
the product and will need to attach the new CE label to the device. This person will then
assume all of the rights and responsibilities of a manufacturer.
2.2.1 Permitted fuels
Wood pellets
Wood pellets made from natural wood with a diameter of 6mm
Note on standards EU: Fuel acc. to EN ISO 17225 - Part 2: Wood pellets class A1 / D06
and/or: ENplus / DINplus certification scheme
General note:
Before refilling the store, check for pellet dust and clean if necessary.

Safety | 2
M1840321_en | Installation and operating instructions RS4 Manual Pellet Suction System 7
2.3 Qualification of assembly staff
CAUTION
Assembly and installation by unqualified persons:
Risk of personal injury and damage to property
During assembly and installation:
rObserve the instructions and information in the manuals
rOnly allow appropriately qualified personnel to work on the system
Assembly, installation, initial startup and servicing must always be carried out by qualified
personnel:
- Heating technician / building technician
- Electrical installation technician
- Froling customer services
The assembly staff must have read and understood the instructions in the documentation.
2.4 Personal protective equipment for assembly staff
You must ensure that staff have the protective equipment specified by accident
prevention regulations.
▪ For transportation, setup and assembly:
- suitable work wear
- protective gloves
- sturdy shoes (min. protection class S1P)

2 | Safety
8 M1840321_en | Installation and operating instructions RS4 Manual Pellet Suction System
2.5 Qualification of operating staff
CAUTION
If unauthorised persons enter the Installation room:
Risk of personal injury and damage to property
rThe operator is responsible for keeping unauthorised persons, in particular children,
away from the system.
Only trained operators are permitted to operate the unit. The operator must also have
read and understood the instructions in the documentation.
2.6 Protective equipment for operating staff
You must ensure that staff have the protective equipment specified by accident
prevention regulations.
▪ For operation, inspection and cleaning:
- suitable work wear
- protective gloves
- sturdy shoes
2.7 Design information
Carrying out modifications to the system and changing or disabling safety equipment is
prohibited.
Always comply with all fire, building and electrical regulations when installing or operating
the system, in addition to following the operating instructions and mandatory regulations
that apply in the country in which the tank is operated.
NOTICE!All design information such as installation and approval of the system,
chimney connection/chimney system etc., see installation instructions for the
boiler.
2.7.1 Standards
The system must be installed and commissioned in accordance with the local fire and
building regulations. The following standards and regulations should always be observed:
ÖNORM / DIN EN 60204 Safety of machines; Electrical equipment of machines, Part 1:
General requirements
TRVB H 118 Technical directives for fire protection/prevention (Austria)
ÖNORM H 5170 Construction and fire protection requirements (Austria)
ÖNORM H 5190 Heating systems - Acoustic insulation
EN ISO 13857 Safety of machines; Safety distances for maintaining a safe distance
from hazardous areas
EN 13501 Fire classification of construction products and building elements

Safety | 2
M1840321_en | Installation and operating instructions RS4 Manual Pellet Suction System 9
2.7.2 Requirements at the installation site
▪ All walls and load-bearing elements must support the static load. The structural
requirements may need to be discussed with a structural engineer. Local fire
regulations must be respected.
▪ Water lines should not be located in close proximity to the pellet store or the feeder
units due to the dangers posed by condensation and bursting water pipes.
▪ Pipes that cannot be removed at justifiable expense and which intersect the path of
the pellets during filling should be clad to protect against the flow and prevent
breakage (e.g. deflector plate, wooden boarding). The cladding should be designed to
divert the pellets without damaging them.
▪ There must not be any electrical installations such as switches, lights, distribution
boxes or other ignition sources in the pellet store. The necessary installations must be
explosion-proof and installed according to the locally applicable regulations.
▪ Doors, windows and hatches to the pellet store must open outwards and be fitted with
a dust-proof seal all the way round, to prevent dust escaping from the store,
particularly into other rooms.
▪ The system is only suitable for interior rooms, which are frost-proof and protected
against the elements.
Ü "Assembly information for hose lines" [}28]
For further information about the technical features of the pellet fuel store:
Ü "Store layout and construction" [}12]

3 | Technical information
10 M1840321_en | Installation and operating instructions RS4 Manual Pellet Suction System
3 Technical information
3.1 Dimensions and recommended distances
B4
H2 H3
B1
H1
B3
B2
H4 H5
H2
L2
H6
B5
B6
L1
L3
L4
H8
L4
B8
B7
L5
L4
L6
H8
H7
H9