Per-Eko AGRO Multi 12 User manual

Operation and maintenance manual for the
boilers with feeder
AGRO Multi

TABLE OF CONTENTS
1. INTRODUCTION............................................3
1.1. Obligations of the user and guidelines concerning safety . . . . .3
1.2. Selection of correct power of the boiler....................3
2. TECHNICAL DESCRIPTION ....................................3
2.1. Intendeduse..........................................3
2.2. Designdescription.....................................4
2.3. AGRO Multi boiler design diagram ........................6
2.4. Operation and technical parameters. . . . . . . . . . . . . . . . . . . . . . .7
2.5. Fuel..................................................7
2.6. Equipment............................................8
3. BEFORE START-UP..........................................8
3.1. Boiler setting..........................................8
3.2. Connectiontochimney.................................9
3.3. Connection of central heating
and domestic hot water system........................ 10
3.4. Connection of the boiler to electrical system..............11
3.5. Filling the system with water . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.6. Feeder assembly..................................... 12
4. SERVICE MANUAL........................................ 13
4.1. Safe operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2. Before rst ringup.................................. 13
4.3. Firing up in the AGRO Multi series boilers . . . . . . . . . . . . . . . . 13
4.4. Refuelling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.5. Stopofboileroperation............................... 15
4.6. Boiler shutdown when the heating season is nished......15
4.7. Cleaning and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.8. Boiler operation in emergency mode.................... 16
5. BOILER OPERATION DISTURBANCES – BEFORE CALLINGTHE
SERVICE ................................................... 17
6. WARRANTYTERMS AND CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . 18
Thank you for purchasing PEREKO boiler. This technical documen-
tation applies to feeder boilers from the AGRO Multi series and
contains all necessary information and recommendations for their
operation.
Please carefully read this document before start-up of the boiler.
Observance of the guidelines contained in the manual will ensure
safety and prevent against misuse of the equipment and its faulty
operation.
A set of documents intended for the user contains manual for the
microprocessor temperature controller (regulator), feeder and fan,
which should be read and understood. Manuals should be kept
and stored in a way allowing using them also during servicing
of the equipment.

3
PageOperation and maintenance manual for the AGRO Multi series boilers with feeders. The producer reserves the right to introduce technical modifications.
1. INTRODUCTION
1.1. Obligations of the user and guidelines concerning safety
To assure operational safety and maintain optimum operation
of the equipment:
• read the manual of the boiler, controller, feeder and observe
their guidelines,
• the manual should be kept and stored in a safe place in the
boiler room allowing using it during any moment of boiler
operation,
• ensure that the drive is never operated by children or persons
who have not read the contents of the manual and adults
with disabilities preventing them from the safe operation,
• the system should be made in compliance with the applica-
ble regulations and in accordance with the rules and recom-
mendations contained in the manual,
• before setting and connecting the boiler check whether all
components are in good working order and whether the
boiler has a complete equipment for servicing and cleaning,
• the boiler should be cleaned on regular basis, at least once
per week, removing a layer of deposited soot and ash, which
reduces the eciency of the boiler,
• ensure continuous access to the equipment,
• avoid exceeding water temperature in boiler over 95°C,
• maintain operating pressure not exceeding 1.5 bar.
NOTE! Boiler installation in accordance with the applicable
standards and regulations and rst start-up should be car-
ried out by a qualied installer.
1.2. Selection of correct power of the boiler
Nominal power of purchased boiler (that is maximum ther-
mal eciency, which can be reached during continuous use
maintaining the eciency declared by the producer) should be
selected in a way corresponding the real demand for thermal
energy even in case of occurrence of very low temperatures.
Do not purchase boiler with power higher than this planned
in the design. Selecting boiler with too high power will result in
higher fuel consumption and lack of full control over the com-
bustion process and therefore higher operation costs, while too
small boiler will not ensure sucient power necessary to heat
up the building.
Approximate boiler power can be calculated using a pow-
er calculator on our website www.pereko.pl Furthermore, you
should also consider: thickness of walls and insulation, the
thermal permeability of rst x joinery (including: tightness of
windows and doors, type of window panels used) and climatic
zone, where the heated building is located.
2. TECHNICAL DESCRIPTION
2.1. Intended use
AGRO Multi feeder boilers belong to a group of low-tempera-
ture boilers and are not subject to registration in the regional
Oce of Technical Inspection. They are intended for operation
in water distribution piping of the gravity hot-water systems or
in open systems with forced circulation in single-family houses,
garages, commercial buildings, maintenance rooms etc. having

4Page Operation and maintenance manual for the AGRO Multi series boilers with feeders. The producer reserves the right to introduce technical modifications.
protections conforming the requirements of the standard PN
91/B-02413, applying to protection of open water heating in-
stallations, considering the Regulation of the Minister of Infra-
structure, Journal of Laws of 2009, no. 56, item 461.
These boilers are approved for operation in the systems where
working pressure does not exceed 1.5 bars and the highest wa-
ter temperature in the boiler 95°C.
2.2. Design description
2.2.1. Doors
KSR Duo boilers are equipped with upper cleaning doors, fur-
nace doors and ash-pan doors. All doors are equipped with the
glow plates protecting against excessive heating up.
Cleaning doors
Cleaning doors are used for cleaning of convection channels.
Furnace doors
Furnace doors are used for ring up and control of combustion
process and for cleaning of heatable surfaces. These doors are
usedalso for combustionin theboiler using“conventionalmeth-
od”on the water-cooled grate in case of power stoppage.
Ash-pan doors
Ash-pan doors allows removal of ash formed during the com-
bustion process.
Cleaning hole (cleanout)
Cleaning hole is used for cleaning of convection channels.
2.2.2. Body - water jacket
The water jacket is a space lled with heating medium - wa-
ter. The structure is made of steel sheet P265GH for pressure
equipment intended for operation at elevated temperature.The
thickness of a metal sheet of the body from ame side equals to
6 mm. Design solution allows ecient reception of heat by use
return of ue gas. Convection channels are located in such way
that they are cleaned through the upper cleaning hole.
2.2.3. Thermal insulation panels
Insulation panels xed on the surface of the water casing limits
heat losses to the environment.They are made of aesthetic car-
tridges made of a zinc-plated metal sheet, painted with powder
paint ensuring high anti-corrosion protection.The cartridges are
lined with a mineral wool from the inside, which is used as an
insulation material.
2.2.4. Electronic controller
Microprocessor controller, installed in upper front part of the
boiler allows programming temperature of boiler operation and
programming changes of temperature of its operation at any
time.The controller is also responsible for the so-called blowing
of the furnace chamber.The controller is also equipped with op-
eration control sensor and sensor of emergency boiler shutdown
after exceeding water temperature 95°C. Detailed information
you will nd in the“User’s manual of microprocessor temperature
controller”, enclosed in the boiler documentation.

5
PageOperation and maintenance manual for the AGRO Multi series boilers with feeders. The producer reserves the right to introduce technical modifications.
2.2.5. Forced draught fan
Forced draught fan is intended to supply sucient amount of
air to the furnace. Amount of supplied air varies and it is au-
tomatically controlled by the controller. Detailed information is
contained in the Forced draught fan user’s manual enclosed to
the boiler documentation.
2.2.6. Set of feeder with burner
Feeder unit with the burner is driven by the motoreducer and
it is installed on the left or the right side of the boiler. Its task is
to take the fuel from the container and feed it automatically to
burner part. PSQ trough burner is used in the AGRO Multi boiler
series.
Design of the unit allows quick assembling and disassem-
bling. Fuel container with tightly closed cover is installed on the
feeder unit. Detailed information is contained in the Feeder user’s
manual enclosed in the boiler documentation.
2.2.7. Outlet water connection
Outlet water connection is a connection to the central heating
system on the hot water side.
2.2.8. Return water connection
Return water connection is a connection of boiler to the cen-
tral heating system on the cold water side returning from the
system.
2.2.9. Flue with a damper
Flue with rotary ue gas damper is an integral part of the boiler,
which discharges ue gas towards the chimney ue.
2.2.10. Flue gas swirlers
Flue gas swirlers are located inside the convection ducts to swirl
ue gas stream, what has an inuence on the increase of e-
ciency and the boiler power. They should be removed in case of
weak chimney draught.
2.2.11. Water tubes
Water tubes (only AGRO Multi 12) are steel components lled
with water permanently located in the convection ducts. Their
function is to extend the heating surface of the boiler, that is to
increase its power and eciency by more ecient heat recep-
tion from the ue gases.
2.2.12. Fire-ghter
Thermal safety valve protecting the fuel in the container against
ignition. In case of re glow reversing or getting to the feeder
pipe, the valve temperature sensor opens the valve and oods it
with water from a 5l container connected with a hose.

6Page Operation and maintenance manual for the AGRO Multi series boilers with feeders. The producer reserves the right to introduce technical modifications.
2.3. AGRO Multi boiler design diagram
1. Cleaning doors
2. Furnace doors
3. Ash-pan doors
4. Ash-pan drawer
5. Water jacket
6. Thermal insulation panels
7. Boiler controller
8. Forced draught fan
9. Feeder
10.Burner
11.Outlet water (hot)
connection
12.Return water connection
13.Flue with a damper
14.Flue gas swirlers
15.Water tubes
16.Fire-ghter H1
D
L1
H2
H
LL2
S S1
E
H3
10
14
15
5
11
12
13
16
6
H1
D
L1
H2
H
LL2
S S1
E
H3
1
2
3/4
8
9
7

7
PageOperation and maintenance manual for the AGRO Multi series boilers with feeders. The producer reserves the right to introduce technical modifications.
2.4. Operation and technical parameters
Parameter Unit Model
12 18 22
Dimensions
D [mm] ∅159 ∅ 178
E [mm] 248 ×173 268 ×198 348 ×248
L1 [mm] 220 180 140
L2 [mm] 180 140
L [mm] 420 525 595
H [mm] 1260 1385 1410
H1 [mm] 1060 1155 1180
H2 [mm] 305 310
H3 [mm] 1215 1560
S [mm] 460 510 600
S1 [mm] 550 650
Primary fuel — non-wood pellet
Range of thermal power* [kW] 3 – 12 5 – 18 8 – 22
Area of heated rooms** [m2]≤218 ≤327 ≤400
Heated rooms volume [m3]≤545 ≤818 ≤1000
Charging capacity of container [dm3] 150 300
Boiler water tank capacity [dm3] ~ 38 ~ 50 ~ 65
Heat exchanger material — Steel P265GH [PN-EN 10028]; thickness 5 and 6 mm
Maximum working pressure [bar] 1.5
Required min. chimney draught*** [Pa] 20 25
Power supply / Power [V/W] 230 / 175
Weight of boiler without water [kg] 278 370 436
Klasa energetyczna — A+
5th class acc. to the PN EN 303-5:2012 — no
The boiler meets the ECODESIGN requirements — no
The boiler meets the requirements of the REGULATION
OFTHE MINISTER OF DEVELOPMENT AND FINANCE
of 1 August 2017 on the requirements for solid fuel
red boilers
— yes
Warranty —
10-year warranty for tightness of welds
5-year warranty for tightness of heat exchanger
2-year warranty for components
*maximum water temperature in the boiler – 95°C; **for rooms height 2.5 m and insulation with styrofoam 15 cm (q = 55W/m2); ***PN-EN 12809, PN-EN 303-5:2002;
2.5. Fuel
Fuel for combustion in boilers line AGRO MULTI is: pellets from
biomass other than wood e.g.: straw, sunower husks, Mis-
canthus, seeds and grains, olive, walnut shells, etc. Granulation:
pellet: 6-8 mm, others: up to 30 mm.
Boiler burn time depends on many factors: the caloric value
of fuel, thermal insulation of building, equipment receiving the
heat (heaters, boiler, oor heating). Burn time period is longer
by several hours during boiler operation with lower thermal
power.

8Page Operation and maintenance manual for the AGRO Multi series boilers with feeders. The producer reserves the right to introduce technical modifications.
2.6. Equipment
The boiler is delivered in the assembled condition, ready for
start-up. Prior to the setting you should check the presence of
additional tools and operation of the instrumentation.
The complete set should include: feeder, container, controller,
fan, brush, hook, ash shovel, drain cock, fuel swirlers (2 pcs.),
user’s manuals for: feeder, controller and fan.
3. BEFORE START-UP
3.1. Boiler setting
3.1.1. Boiler room
• It should be a separate room with height not lower than 2.2
m in the newly constructed building (in the already existing
buildings the allowable height equals to 1.9 m).
• It should have articial lighting installed and have natural
lighting as far as practicable.
• It should have gravity ventilation in good working order,
including:
1. air-supply duct in the external wall with cross-section
not lower than 50% of chimney cross-sectional area on
height maximum 1 m over the ooring or not lower than
200 cm2for boilers with power up to 25 kW or 400 cm2
for boilers over 25 kW,
2. separate air-exhaust duct on the internal wall with
cross-section not lower than 140×140 mm with an out-
let located under the boiler-room roof near the chimney.
NOTE! It is forbidden to use mechanical exhaust ventilation
in the room where the boiler was installed.
• Floor gully and oor with 1% slope towards the outlet
should be foreseen in the central part of the room.
• Flooring and walls in the whole room should be made of
non-combustible materials.
• The doors to the boiler room should open outwards.
3.1.2. Method for boiler setting
The boiler does not require a foundation and it is allowed to set
it on wall base with height not lower than 50 mm. Method of
boiler setting should ensure free access to the equipment al-
lowing its cleaning and maintenance. While setting the boiler
it is recommended to maintain minimum distances from the
individual walls:
• distance from the front of the boiler to opposite boiler room
wall should not be smaller than 1 m,
• the distance of boiler side from the wall of the boiler room
should be lower than 0.5 m,
• the distance of rear part of the boiler from the wall of the
boiler room should be equal to at least length of the con-
nection, that is 0.5 m.
0.5 m
0.5 m
0.5 m 1 m

9
PageOperation and maintenance manual for the AGRO Multi series boilers with feeders. The producer reserves the right to introduce technical modifications.
3.2. Connection to chimney
1. It is necessary to prepare stand-alone, tight chimney ue,
which will be used for ue gas from the boiler.
2. The ue should be placed at least 1.5 m over the roof ridge
to avoid the occurrence of backdraught. The intersection of
the ue should be appropriately selected for the boiler pow-
er and height of the chimney. Approximate calculations of
chimney height and intersection can be carried out using
a chimney intersection calculator available on the website
www.pereko.pl Regardless of the results of the calculations
the minimum intersection of masonry chimney should not
be lower than 14 ×14 cm!The intersection of non-insulated
steel chimneys should be bigger by 20% and the chimneys
made from steel pipes should be about 15-20% higher than
brick chimneys.
3. Check condition of the chimney (preferably by a chimney
sweep) before connecting the boiler to the chimney and
check whether the chimney if free from connections of the
heating elements.
4. The boiler should be connected with chimney using a con-
nector. It is not recommended to use the connection at a
straight angle because it will cause a loss in the chimney
draught. Flue with chimney should be joined with a connec-
tor made of steel sheet of thickness 3 mm (to be purchased
from the boiler producer). We put it on the outlet from the
ue, x on the chimney and seal with high-temperature
silicone. The connector should be directed slightly up-
wards from 5° to 20°. If boiler ue will have a length over
400mm thenit isrecommendedto insulate itwith athermal
insulation.
NOTE! Boilers should be installed in compliance with the
applicable Regulation of the Minister of Infrastructure
(Journal of Laws of 2002 no. 75 item 690 and Journal of
Laws of 2009 no. 56 item 461.) In addition, it is recom-
mended to use chimney liner resistant to corrosion: chem-
ical, pitting, intercrystalline and surface.

10 Page Operation and maintenance manual for the AGRO Multi series boilers with feeders. The producer reserves the right to introduce technical modifications.
3.3. Connection of central heating and domestic hot water system
3.3.1. Open water installations
AGRO Multi boilers are intended for feeding water distribution
piping in the open central heating systems with gravity or
forced circulation of water. The system, where the boiler will be
operated, should meet the requirements of the Polish Standard
PN-91/B-02414 Heating and district heating – Protection of
open water heating installations – Requirements.
Exemplary diagram of the open central heating system with four-way valve
Equalizing tank
Non-return ball valve
Non-return valve
Central heating pump
Pump
Heaters
Storage-type
water heater for domestic hot water