Operating Manual
PWS 0601-A and PWS 1201-A
(Models Twist 6 + Twist 12)
English
Version: mst 110208 PWS 0601-A & PWS 1201-A BA_EN
Article number: 102471
From SW 2.03
All information subject to change. All rights reserved.
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Table of Contents
1 Preface ............................................................................................................ 2
2 Important notes ............................................................................................... 2
2.1 Safety ......................................................................................................................................2
2.2 Identification ............................................................................................................................3
2.3 Liability ....................................................................................................................................3
2.4 Notes on legal regulations .........................................................................................................3
2.5 Stove-related hazards ...............................................................................................................4
3 Approved fuel................................................................................................... 4
3.1 Storage of pellets......................................................................................................................4
4 Construction of the stove .................................................................................. 5
4.1 Standard accessory ................................................................................................................... 5
4.2 Front view ................................................................................................................................5
4.3 Rear view .................................................................................................................................6
5 Installation....................................................................................................... 7
5.1 Minimum distances ................................................................................................................... 7
5.2 Flue ......................................................................................................................................... 8
5.3 Connecting piece, pellet stove - chimney....................................................................................8
5.4 Combustion air .........................................................................................................................8
5.4.1 Intake from external source (preferred) ..................................................................................... 8
5.4.2 Intake from internal source .......................................................................................................9
5.5 Flue with air intake system (AIS) ...............................................................................................9
5.6 Non-dependence on ambient air ................................................................................................9
5.7 Backflow system .......................................................................................................................9
6 Control system max3 ...................................................................................... 10
6.1 Operating modes .................................................................................................................... 10
6.2 Overview of user and service menus ........................................................................................ 11
6.3 External requirement............................................................................................................... 12
7 Start-up, operating mode................................................................................ 13
7.1 Filling the pellet bin................................................................................................................. 13
7.2 Functional characteristics of the heating operation .................................................................... 13
7.2.1 Self-test ................................................................................................................................. 13
7.2.2 Starting phase, pre-heating phase ........................................................................................... 13
7.2.3 Heating phase ........................................................................................................................ 13
7.2.4 Cleaning phase ....................................................................................................................... 13
7.2.5 Cool-down phase: ................................................................................................................... 13
7.2.6 Standby.................................................................................................................................. 13
7.3 Heating mode......................................................................................................................... 14
7.4 Performance-regulated heating mode....................................................................................... 14
7.5 Setting date / time.................................................................................................................. 15
7.6 Setting timer switch ................................................................................................................ 15
7.7 External control with internal timer switch ................................................................................ 16
7.8 Activating the timer switch ...................................................................................................... 16
7.9 Resetting to factory settings .................................................................................................... 16
8 Cleaning and maintenance .............................................................................. 17
8.1 After 200 kg or 14 days........................................................................................................... 17
8.2 After 800 kg or annually .......................................................................................................... 18
9 Errors - causes - remedies .............................................................................. 20
9.1 Service request....................................................................................................................... 21
10 Technical data................................................................................................ 22
10.1 Dimensions............................................................................................................................. 23
11 Conformity..................................................................................................... 25
12 Notes............................................................................................................. 27
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1 Preface
Thank you for choosing one of our products.
Please inspect the pellet stove upon arrival very carefully for damage and completeness of the accessory
equipment included with delivery.
2 Important notes
2.1 Safety
Before installing your appliance and starting it, please take care to read the operating manual in detail. This
will ensure that you avoid damage caused by incorrect installation or operation.
To carry your pellet stove only approved conveying equipment with a sufficient load rating may be used.
When burning pellets, heat energy is released causing intensive heating of the stove surface and glass door.
If these parts are touched without using appropriate protective clothing, or aids such as e.g. suitable gloves,
there is a risk of burns.
Draw your children's attention to this specific danger and keep them away from the heating appliance whilst
it is operating.
Placing inflammable objects on or close to the heating appliance is prohibited.
The pellet stove may only be connected to the mains supply after it has been connected to the flue by an
approved specialist.
Do not place items of washing on the stove to dry.
When drying items of clothing and suchlike, they must be positioned sufficiently well away from the stove
(fire risk)!
Using or working with highly combustible or explosive materials in the same room or adjoining rooms whilst
your stove is in operation, is prohibited.
Filling the pellet bin:
The opening of the pellet bin is sufficiently large to allow it to be easily filled.
Take care to ensure that no pellets fall onto the grill of the vent, or the body of the hot stove. This could
cause formation of dense smoke.
Never operate the stove with the glass door or the pellet bin open. A flash fire or misfire could be caused.
Never remove the safety equipment such as grills etc..
Always remove the mains plug before doing any work.
Make certain that there is always sufficient combustion air in the room where the stove is set up in.
The pellet stove is only designed to use standard low-dust wood pellets according to EN 14961-2 (class 1).
If weather-related conditions, such as positive pressure in the chimney for example, are prevalent, the stove
must not be started.
The stoves are designed to be used in domestic living spaces with normal humidity and temperatures of 0 °C
to 30 °C. Stoves are not protected against water splashing and must not be installed in wet rooms.
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Suitable antifreeze (approved for use in solar systems) must be used for stoves with water heat exchangers
where room temperatures are < 5 °C.
2.2 Identification
The documentation included with delivery will assist with:
• operating the pellet stove safely
• exploiting all potential for use of the stove
• performing cleaning and maintenance work
This operating manual should be kept in good condition and in an easily accessible location until the stove is
disposed of. It should be given to any new owner(s).
If the operating manual is lost or destroyed, a new copy can be requested any time from your specialist
dealer.
The illustrations and sketches are intended as basic information only. They are not to scale.
Directional information such as „right/left, front/back“ always relates to the position facing the front of the
pellet stove.
ISO units of measurement are used for dimensions, which are given in mm unless otherwise indicated.
2.3 Liability
In the event of personal injury or property damage, the manufacturer shall be responsible for the building
standard and safety of the machine only if design defects can be verified.
No liability for:
• inappropriate use
• inappropriate operation
• inadequate maintenance
• use of non-original spare parts
• structural modifications
Non-intended use
Inappropriate use of the pellet stove can result in life-threatening injuries and other major property damage
as well as in loss of warranty.
Uses not conforming to the intended use are:
• any structural modification of the pellet stove
• operation without proper connection to the flue
• operation with open doors and covers
• operation without knowledge of the operating manual
• installation of non-original spare parts
• use of wood pellets that are not approved by the manufacturer
2.4 Notes on legal regulations
Please observe local, national and European regulations and standards applicable for the installation and
operation of combustion appliances.
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2.5 Stove-related hazards
Danger of fire / burn injuries
• The pellet stove must never be used with open doors or covers; sparks or flames could be released.
• Never cover the stove with blankets, towels or similar items. During operation, various surfaces reach
temperatures of over 65 °C. The materials could catch fire.
• If required, please use suitable protective equipment.
Chimney fire or burnback
• Never pull the power plug and keep closed all doors and covers. Open windows and doors.
Poisoning and suffocation hazard
• The flue gases contain harmful constituents, including carbon monoxide. This gas is odourless and
poisonous.
• Self-protective action for rescuing unconscious persons: thoroughly ventilate closed rooms before
entering.
Electrocution hazard
• For power supply voltages of 50 Hz and an exposure time of more than one second, the following
applies:
Currents higher than 50 mA and voltages of 50 V or higher are extremely dangerous.
Power cut
• Never open the doors or the bin lid during a power cut. Poisonous gases could be released.
• Following a short power cut, the heating mode is automatically continued.
• After a longer power cut, the stove first switches to cool-down mode and subsequently to starting
phase.
3 Approved fuel
The requirements for approved fuel are defined in the
EN 14961-2 (class A1), EN plus (class A1) or
ÖNORM M7135, DIN 51731, DIN Plus standards. Low-dust wood pellets are to be used.
Length 10 - 30 mm
Diameter 6 mm or 8 mm*)
Bulk density 650 kg/m³
Calorific value 5 kWh/kg
Residual moisture < 10 %
Ash content < 0.5 %
Density 1.12 kg/dm³
*) Manual adjustments by the service engineer are necessary!
ATTENTION: Waste materials and liquids are not to be burned in the stove!
3.1 Storage of pellets
To ensure combustion of pellets without any problems, it is necessary to store them in dry condition and
free of contaminants.
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4 Construction of the stove
4.1 Standard accessory
Operating manual, burn pot brush, power lead, multi-functional tool.
4.2 Front view
Transition period / summer use.
1. Dismount deflector plate,
2. Pull out insulating plate.
Door opener
a Control panel max3
b Pellet bin lid
c Door-opening mechanism
d Glass door
e Side panel
f Insulating plates for summer use
c
f f
a
c
d
e f
b
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4.3 Rear view
a Voltage rating 230 V
b Safety temperature limiter (STL)
c Air-intake pipe
d Flue pipe connection Ø 100
e Opening for safety valve overflow
f Opening for heating flow or respectively return
b a
f
c
d
e
b
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5 Installation
5.1 Minimum distances
Minimum permissible distances to
combustible materials:
Rear (x): 5 cm
Sides (y): 15 cm
Front (z): 80 cm
Recommended permissible
distances to combustible materials:
Rear (x): 25 cm
Sides (y): 50 cm
Front (z): 80 cm
Wall
Front
Floor protection:
Because the temperature in the lower areas of the pellet stove increases only minimally during operation,
installation of a fireproof plate under the stove is not required.
Z
y X y
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