Fröling Cube 500 S User manual

Installation and Operating Instructions
Cube 500 S
Translation of the original German operating and installation instructions for technicians and operators
Read and follow the instructions and safety information!
Technical changes, typographical errors and omissions reserved!
M1880016_en | Edition 30/05/2016
Fröling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com

Table of Contents
1 General 3
1.1 Permitted uses 3
1.1.1 Permitted fuels 3
Wood pellets 3
1.2 Qualification of assembly staff 4
1.3 Personal protective equipment for assembly staff 4
1.4 Design information 4
1.4.1 Standards for structural and safety devices 4
1.4.2 Regulations and standards for permitted fuels 5
1.4.3 Requirements at the installation site 5
2 Technology 6
3 Installation 7
3.1 Materials supplied 7
3.2 Positioning and connecting the Cube 500 S 8
3.3 Configuring the discharge system in the controller 9
3.4 Assembly information for hose lines 10
3.4.1 Potential equalisation 11
4 Operation 12
4.1 Prior to filling 12
4.2 Filling the Cube with pellets 12
4.3 Recurrent Check 12
Table of Contents
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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.
1.1 Permitted uses
The Froling Cube 500 S is only to be used for storing wood pellets. Only use fuels
specified in the “Permitted fuels” section.
The unit should only be operated when it is in full working order. It should 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 should 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.
1.1.1 Permitted fuels
Wood pellets
Wood pellets made from natural wood with a diameter of 6 mm
EU: Fuel as per EN ISO 17225 – Part 2: Wood pellets class A1 / D06
and/or: EN plus / DIN plus certification scheme
Note on standards
General 1
Permitted uses
Installation and Operating Instructions Cube 500 S | M1880016_en 3

1.2 Qualification of assembly staff
CAUTION
Assembly and installation by unqualified persons:
Risk of personal injury and damage to property
During assembly and installation:
❒ Observe the instructions and information in the manuals
❒ Only 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.
1.3 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)
1.4 Design information
1.4.1 Standards for structural and safety devices
ÖNORM H 5170 Heating installation - Requirements for construction and safety
engineering, as well as fire prevention and environmental
protection
ÖNORM M 7137 Compressed untreated wood – Requirements for storing pellets
at the end customer’s site
TRVB H 118 Technical directives for fire protection/prevention (Austria)
1General
Qualification of assembly staff
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1.4.2 Regulations and standards for permitted fuels
1. BImSchV First Order of the German Federal Government for the
implementation of the Federal Law on Emission Protection
(Ordinance on Small and Medium Combustion Plants) in the
version published on 26 January 2010,
BGBl. JG 2010 Part I No. 4.
EN ISO 17225-2 Solid bio-fuel - Fuel specifications and classes
Part 2: Wood pellets for use in industrial and domestic systems
1.4.3 Requirements at the installation site
▪ The installation site must be flat with sufficient load-bearing capacity
▪ The operating area must be designed in such a way that the container is easy to
fill
▪ The system does not provide any light, so the customer must provide sufficient
lighting in accordance with national workplace design regulations
General 1
Design information
Installation and Operating Instructions Cube 500 S | M1880016_en 5

2 Technology
B1 L1
B2
H1
H2
L2
Pos. Description Value
H1 Cube height 1255 mm
H2 Total height when filling lid is open 1785 mm
B1 Cube width 760 mm
B2 Width of filling opening 664 mm
L1 Length of Cube incl. connections for suction hoses 996 mm
L2 Length of filling opening 435 mm
Pellet suction line / return air line connection Ø 50 mm
Weight 87 kg
Capacity 1) approx. 495 kg
1.The specified capacity applies with a pellet bulk weight of approx. 650 kg/m³. After the suction probe has been cleared, you should expect
at least 10% of the total volume to remain.
2Technology
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3 Installation
3.1 Materials supplied
The Cube 500 S is secured to the pallet with tension bars and delivered wrapped in
plastic film.
ACube 500 S
B2 hinge bolt clamps 56 – 59 mm
CEdge protection profile L=970 mm
Installation 3
Materials supplied
Installation and Operating Instructions Cube 500 S | M1880016_en 7

3.2 Positioning and connecting the Cube 500 S
The suction hoses are mounted on the underside of the Cube 500 S and can be
guided out on a suitable side. Note the following distances when positioning the Cube
500 S:
A
B
R
Pos. Description Value
A Space required at front for filling with bagged cargo 500 mm
B Recommended distance from boiler when installing
in boiler room
See recommended distances
in the installation instructions
for the boiler
The Cube 500 S can be placed against the wall on the sides where the suction tubes
are not guided out.
After positioning at the installation site:
❒ Align the Cube on the floor using the adjustable feet
➥To do this, use a 13 mm open-end spanner
3Installation
Positioning and connecting the Cube 500 S
8 Fröling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com

❒ On the side where the suction hoses are guided out (A, B or C), fit the enclosed
edge protection profile over the sheet edge of the cut-out
❒ Secure the suction hoses to the connections using the hinge bolt clamps and fit to
the boiler
➥Fit suction hose to left-hand connection (“PELLETS” sticker)
➥Fit return air line to right-hand connection
3.3 Configuring the discharge system in the controller
In the controller, navigate to the “Discharge” menu as follows.
System menu System System selection
Feed system
In the “Discharge” menu, the parameter “Universal suction, manually
operated / bag silo” must be set to YES
Feed system Universal suction, manually operated / bag silo
Installation 3
Configuring the discharge system in the controller
Installation and Operating Instructions Cube 500 S | M1880016_en 9

3.4 Assembly information for hose lines
Please note the following with regard to the hose lines used in Froling vacuum
discharge systems:
▪ Do not kink the hose lines! Minimum bending radius = 30cm
▪ Lay the hose lines as straight as possible! Sagging lines can lead to so-called
“pockets”, which may cause problems with the pellet feed.
▪ Lay the hose lines in short sections away from walking areas
▪ Hose lines are not UV-proof. Therefore: Do not lay the hose lines outdoors
▪ Hose lines are suitable for temperatures up to 60°C. Therefore: Hose lines must
not come into contact with flue gas pipes or uninsulated heating pipes.
▪ Hose lines must be earthed on both sides to ensure that no static charge builds up
as a result of transporting the pellets.
▪ The suction hose to the boiler must be in a single section
▪ The return-air line can be made up of several sections, but consistent potential
equalisation must be established throughout the line
▪ For systems over 48 kW, only suction hoses with PU inlet are recommended due
to the increased load.
3Installation
Assembly information for hose lines
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3.4.1 Potential equalisation
When connecting the hose lines to the individual connections, ensure there is
consistent potential equalization throughout the line
❒ Expose approximately 3 cm of the earth wire at the end of the hose line
➥ TIP: Slit the insulation open along the wire with a knife
❒ Bend the earth wire inwards in a loop
➥This prevents the earth wire from being damaged by the pellet movement.
❒ Slide the hose clamp onto the hose line
❒ Attach the hose line to the connector
➥Ensure that contact is established between the earth wire and the connector
➥ TIP: If stiffness occurs when trying to attach the hoses to the connectors, pour
a few drops of water onto the pipe (do not use grease).
❒ Secure the hose line with a hose clamp
Installation 3
Assembly information for hose lines
Installation and Operating Instructions Cube 500 S | M1880016_en 11

4 Operation
4.1 Prior to filling
The Cube 500 S should be completely emptied at regular intervals before refilling,
checked for fines and cleaned if necessary.
Tip: Using a pellet deduster (Froling PST) reduces the amount of fines in the container
and is, therefore, recommended.
4.2 Filling the Cube with pellets
❒ Open the lid of the filling opening
➥The lid stays up at an aperture angle of approx. 105°
❒ Place the bagged pellets on the filling grille
❒ Open the bottom of the bag using a suitable tool
➥The pellets trickle through the grille into the container
❒ Repeat the process until the container is filled
4.3 Recurrent Check
The Cube is essentially maintenance-free. For lasting reliable operation, the Cube
should be regularly subjected to a visual inspection.
❒ Check Cube for damage
❒ Check that all screw connections are tightened.
❒ Check that the hose clips are secure
4Operation
Prior to filling
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