BiSolid GP 20_B18 hc User manual

INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Bisolid GP xx_B hc> 20 July 2017 OM-BSGPHCV02/07/2017/EN
MANUAL
FOR INSTALLATION, OPERATION AND MAINTENANCE OF PELLET
BURNER SERIES BISOLID GP XX B HC>
http://www.bisolid.eu

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CONTENT page.
1. IMPORTANT INFORMATION ABOUT THE PELLET BURNER OPERATION 3
1.1. SAFETY INSTRUCTIONS 3
1.2. PURPOSE OF THE PELLET BURNER 5
1.3. FUEL 6
1.4. PELLET BURNER DESCRIPTION 7
1.5. PELLET BURNER OVERALL DIMENSIONS 8
1.6. PELLET BURNER TECHNICAL DATA 9
2. INTRODUCTION 10
2.1. PELLET BURNER GENERAL REQUIREMENTS 10
2.2. ENSURING PEOPLE AND EQUIPMENT SAFETY 11
3. OPERATION INSTRUCTIONS 11
3.1. OPERATION OF PELLET BURNER SERIES BISOLID GP XX_B HC> 11
3.2. SAFE OPERATION OF THE PELLET BURNER 12
4. PELLET BURNER INITIALIZATION FOR OPERATION 13
4.1. PELLET BURNER CHECK-UPS BEFORE INITIALIZATION FOR OPERATION 13
4.2. JOINT OPERATION OF PELLET BURNER AND SOLID FUEL BOILER 13
5. OPERATION AND CONTROL OF PELLET BURNER FROM BISOLID GP XX_B HC> SERIES 14
5.1. DESIGNATION OF THE PELLET BURNER CONTROLLER 14
5.2. OPERATION OF THE PELLET BURNER CONTROLLER 14
5.3. STARTING THE PELLET BURNER 14
5.4. SWITCHING OFF THE PELLET BURNER 15
5.5. BURNER CONTROLL THROUGH GSM MODULE (OPTION) 15
5.6. METHODS FOR FORMING THE DESIRED TEMPERATURE 15
5.6.1. MANUAL DETERMINATION OF THE HEATING WATER ASSIGNMENT (ТB SET) 15
5.6.2. DETERMINATION OF THE HEATING WATER ASSIGNMENT ON OUTSIDE TEMPERATURE
THROUGH SENSOR PT1000 15
5.6.3. DETERMINATION OF THE HEATING WATER ASSIGNMENT ON ROOM TEMPERATURE
THROUGH SENSOR PT1000 IN THE ROOM 16
5.6.4. DETERMINATION OF THE ASSIGNMENT FROM ROOM THERMO REGULATOR 16
5.7. TEMPERATURE AND SECURITY RESTRICTIONS 17
5.8. FRONT CONTROL PANEL OF THE PELLET BURNER 17
5.9. OPERATION (FUNCTIONING) OF THE PELLET BURNER 18
CAN BE SWITCHED ON ONLY WHEN THERE IS START COMMAND ON BOTH PLACES. 19
5.9.1. USER’S SETTINGS 19
5.9.2. WEEKLY TIMER 19
5.9.3. INFORMATION ON ALARM MESSAGES 20
5.10. SERVICE SETTINGS 21
5.10.1 COMMON SETTINGS 21
5.10.2 IGNITION SETTINGS 22
5.10.3 SETTINGS IN BURN MODE 22
5.10.4 SETTINGS IN STOP MODE 23
5.11. SMS COMMANDS 23
5.12. CONNECTING THE PELLET BURNER TO THE ELECTRICAL POWER SUPPLY 24
5.13. WARRANTY AND WARRANTY CONDITIONS 25
5.14. PELLET BURNER PACKAGE KIT AT DELIVERY 25
5.15. PELLET BURNER CLEANING 25
5.16. PELLET BURNER SERVICING 27
5.16.1. BASIC AND PERIODIC CLEANING OF PELLET BURNER 28
6. INSTALLATION INSTRUCTIONS FOR PELLET BURNER SERIES BISOLID GP XX_B HC> 29
6.1. PELLET BURNER INSTALLATION – COMMON INFORMATION 29
6.2. CHOOSING A PELLET BURNER 29
6.3. POSITIONING OF THE PELLET BURNER 30
6.4. TRANSPORTATION AND STORAGE 31
7. PELLET BURNER WIRING DIAGRAM 32
8. TROUBLESHOOTING 33

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1. IMPORTANT INFORMATION ABOUT THE PELLET
BURNER OPERATION
Dear Bisolid GP xx_B hc> pellet burner owners,
We would like to congratulate you for your new pellet burner. By purchasing this quality
product from the manufacturer you have chosen a system that ensures higher comfort level
and optimized fuel consumption in environmentally protecting and natural resource saving
way. Your pellet burner is manufactured under strict ISO 9001 standards.
On the next pages we have introduced specific information and important advices about the
system operation, its functions and methods of maintenance. Please pay special attention to
this manual. Good knowledge of this document content will give you the pleasure of long-term
and trouble-free operation of the pellet burner.
1.1. SAFETY INSTRUCTIONS
The wood pellet burner from series Bisolid GP xx_B hc> and its accessories correspond to all
applicable directions for safety techniques. Your wood pellet burner and all of its accessories
operate under variable electricity 230 VAC. Improper electrical installation or repair may
endanger user’s life from electrical shock. Installation works must be performed only by
qualified technicians.
This manual is intended for authorized service specialists only. It is important to know that:
Works on the heating installation should be performed only by technicians who had
acquired such rights by law.
Works on the electrical installation should be performed by qualified electricians only.
Initial operation start up including installation visual checks, adjustments and starting
must be performed by the manufacturer authorized personal.
Legal provisions
While operating with the appliance please observe:
Legal provisions for safety techniques.
Legal provisions for environment protection.
Provisions for proper installation.
Applicable provisions of the European community.
Safety instructions
Danger
Please observe these safety instructions in order to prevent the people from
risks and harms, as well as damage to properties and environment.
Safety instructions explanation.
Please pay attention to the following symbols in this manual:

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Danger
This symbol warns the user about health risks
Warning
This symbol warns the user about possible risks and harms to properties and
environment.
Information
This symbol presents text with additional information for the user.
Works or activities for setting the appliance in proper technical working order
The current manual for operation, installation and maintenance uses notation
Bisolid GP xx_B hc> includes the model of pellet burner modification GP
20_B18 hc>, GP 25_B hc> and GP 32_B hc>.
Repairs of constructional elements which functions are related to the technical
safety may compromise the safely operation of the installation. Damaged or
faulty elements must be replaced with genuine spare parts provided by the
manufacturer.
After carefully reading of the installation and operation manual, you will acquire
all necessary information about design, controls and safety operation of the
pellet burner. After unpacking the pellet burner please check its completeness
and delivered elements. Check whether the pellet burner size corresponds to
the desired designation.
If any failures or troubles occur the pellet burner must be led out from operation and removing
of the faults/troubles must be provided by specialized company. For proper functioning, safe
and long-term operation of the pellet burner, a regular check ups and prophylaxis must be
performed at least once per year. Such technical care guarantees your investment.
Repairs should be performed only with genuine spare parts. In case of faults or troubles
caused by unqualified installation, non-compliance with the requirements or the operation
manual, the manufacturer company is not responsible and does not provide warranty for the
product.

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1.2. PURPOSE OF THE PELLET BURNER
Type designation of pellet burner’s series: GP 20_B 18 hc>
Example GP 20_B 18 hc
Pellet burner trade name
Nominal heating output *, kW
Pellet burner with hand frontal cleaning
* Similar to other models of pellet burners GP 25_B hc> and GP 32_B hc>.
The purpose of the fully automated pellet burner series Bisolid GP xx_B hc> in combination
with hot water solid fuel boilers Bisolid is for heating domestic housings with small and
medium sizes. The pellet burner is very good solution for housings heated with Bisolid wood
logs boilers, because the installation of the pellet burner to such hot water boiler can be
performed by standard assembly kit.
The burner’s main advantages as automatic ignition, automatic adjusting of the heating output
(in optimization mode for operation with room thermostat) and its multifunction control panel
are making its usage easy and comfortable during the heating season
The burners from series Bisolid GP xx_B hc> is designated to utilize wood pellets according to
standard EN ISO 17225-2:2014, class A1 and its corresponding quality characteristics. The
fuel and the air are mixed in the burner by a precisely controlled method and this is the reason
for ecological burning and high efficiency.
The pellet burner’s series Bisolid xx_B hc> can be mounted to the hot water
solid fuel boilers with sufficiently high efficiency.
The necessary minimum time for technical servicing of the Bisolid GP xx_B hc> pellet burner,
depending on the used wood pellets characteristic and quality, is once per week.
The optimum functionality of the appliance depends either on the professionally designed
heating installation or its precise handling.
The main advantages of the pellet burner series Bisolid GP xx_B hc> are:
The pellet burner’s are fully automated – ignition, flame control, combustion
chamber blowing. It is also equipped with intuitive LCD display for easy operation.
Automatic adjustment of fresh air and fuel feed rates according to the selected
operating temperature, which feature provides high efficiency of the appliance at
minimum fuel consumption.
Automatic modulation of the burning process decreasing the number of stops and
ignitions, respectively fuel and electricity consumption.

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Manually mechanical cleaning of the fire-grate, through leverage without opening
the boiler and without interruption of the operation.
Circulations pump control according to heat carrier (water) temperature.
Quiet operation and low electric power consumption.
Protection from back-fire and from heat carrier (water) freezing.
Circulations pump protection against blocking.
Possibility for control of extractor (flue gas) fan.
Possibility for operation with room thermostat and week programmer.
1.3. FUEL
The pellet burner series Bisolid GP xx_B> are able to utilize wood pellets according to
standard EN ISO 17225-2:2014, class A1 with the following characteristics (Table 1.):
Table 1. Standard for wood pellets EN ISO 17225-2:2014
Wood pellets must be stored in dry premises, so they can be transported without problems
and also in order to achieve trouble-free operation with optimum combustion and maximum
efficiency.
The pellet burner series Bisolid GP xx_B hc>> is designated for burning only
approved by its manufacturer fuel types.
PARAMETER MEASURE Class A1 Class A2 Class B
Length (L) mm 3,15 ≤L≤40 3,15 ≤L≤40
3,15 ≤L≤40
Diameter (D) mm 6±1
8±1
6±1
8±1
6±1
8±1
Moisture (М) % < 10 < 10 < 10
Ash (A), dry % < 0,7 < 1,2 < 2,0
Buck density (BD) kg/m
3
> 600 > 600 > 600
Mechanical durability (DU) % > 97.5 > 97.5 > 96.5
Net caloricity (Q) MJ/kg
kWh/kg
> 16,5
> 4.6
> 16,5
> 4.6
> 16,5
> 4.6
Chlorine Cl % < 0,02 < 0,02 < 0,03
Nitrogen (N) % < 0,3 < 0,5 < 1,0
Sulphur (S) % < 0,04 < 0,05 < 0,05
Arsenic (As) mg/kg < 1 < 1 < 1
Cadmium (Cd) mg/kg < 0.5 < 0.5 < 0.5
Chromium (Cr) mg/kg < 10 < 10 < 10
Copper (Cu) mg/kg < 10 < 10 < 10
Lead (Pb) mg/kg < 10 < 10 < 10
Mercury (Hg) mg/kg < 0.1 < 0.1 < 0.1
Nickel (Ni) mg/kg < 10 < 10 < 10
Zinc (Zn) mg/kg < 100 < 100 < 100

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1.4. PELLET BURNER DESCRIPTION
The pellet burner series Bisolid GP xx_B hc> is with steel made construction and is designed
on the principle of feeding the wood pellets through a transport auger, then through flexible
pipe over the burner’s combustion chamber fire-grate, where the process of burning of the fuel
and the oxidizer (air for firing) is achieved.
The burner operation is automatic, including: initial loading dose of fuel, ignition, run,
combustion, parameters monitoring of the combustion process, controlled stops at the water
temperature reaching and (or) signal from the room thermostat, final blow. In the optimization
mode, at the operation with the room thermostat is carried optimized modulation based on the
thermal characteristics of the site.
The pellet burner is equipped with display panel which shows information for the burner’s
current operation parameters and/or for adjustment of its operating parameters.
The current manual for operation, installation and maintenance uses notation
Bisolid GP xx_B hc> includes the model of pellet burner modification GP
20_B18 hc>, GP 25_B hc> and GP 32_B hc>.
The main components of wood pellet burner series Bisolid GP xx_B hc> are presented in
Figure 1.
Figure 1. Main components of the pellet burner
1. Cleaning device
2. Main module cover panel
3. Front panel – intuitive LCD display
4. Main control board
5. Fresh air fan
6. Main module housing
7. Plug for feeding and control of transport
auger
8. Air box
9. Photosensor

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10. Cover for main cleaning
11. Pellets feeding pipe
12. Couplung
13. Thermal switch
14. Isolation
15. Fire-grate
16. Igniter
17. Combustion chamber
18. Combustion chamber cover
1.5. PELLET BURNER OVERALL DIMENSIONS
The overall dimensions of pellet burner series Bisolid GP xx_B hc> are presented in Figure 2
and Figure 3.
Figure 2. Overall dimensions of the pellet burner
Figure 3. Overall dimensions of the pellet burner

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The dimension presented in brackets in Figure 3 concerns the length of pellet
burner GP 32_B hc>.
1.6. PELLET BURNER TECHNICAL DATA
Table 2. Technical data for pellet burner series Bisolid GP xx_B hc>
DESCRIPTION DIMENSION
VALUE
GP 20_B18 hc> GP 25_B hc> GP 32_B hc>
Fuel - Wood pellets
Wood pellets category according to
standard EN ISO 17225-2:2014 - A1
Nominal heating output kW 18 25 32
Heating output range (performed by
authorized servicing technician) kW 5-18 7-25 10-32
Pellet burner size: wide хheight x
lenght (W x H хL) mm 250х488х599 250х488х599 250х488х640
Pellets transport auger size: wide х
length x height (W x L хH) mm 184 x 1520 x 107
Voltage VАС, Hz 230, 50
Electrical consumption (with ignition) W 100 (+1200 at ignition)
Degree of electrical protection - IP 20
Burner net weight kg 16.9 16.9 17.1
Transport auger net weight kg 8.5 8.5 8.5

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2. INTRODUCTION
2.1. PELLET BURNER GENERAL REQUIREMENTS
The pellet burner series Bisolid GP xx_B hc> and its accompanying equipment must be
installed and used in accordance to the designed heating installation, all applicable legal
norms, technical standards and manufacturer instructions. The pellet burner should be used
only for the subscribed purposes.
The pellet burner must be installed only for the purposes for which is designed. If the pellet
burner is delivered and installed to the customer by the same person, then the whole
accompanying documentation must be provided as well (especially the user manual book).
The pellet burner’s genuine package should be kept until its initial operation start up, in case it
should be transported again.
After installation the pellet burner operation must be initiated by service organization,
authorized by the manufacturer.
The pellet burner corresponds to the applicable EU legal provisions. If the pellet burner should
be used in countries outside the EU, all deviations from local laws and legal provisions must
be identified and corrected.
In case of faults in the pellet burner please contact a servicing organization, authorized by the
manufacturer. Every incompetent intervention might damage the pellet burner (and possibly
the accompanying equipment).
The servicing technician initializing the pellet burner start up for first time must show the
customer all of its main components and modules, and also how to operate it. The technician
must present the pellet burner’s safety elements and signalization, and respectively the
relevant user reaction. If the pellet burner is delivered and installed to the customer by the
same person, then he must ensure that its genuine package is kept, in case the burner should
be transported again.
Please check the delivery of the pellet burner standard accompanying equipment.
Please check if the delivered model and type of the pellet burner corresponds to the usage
requirements.
If you are not sure how to manage the pellet burner, please carefully read the relevant
instructions in this manual for operation and installation, and respectively continue as
prescribed.
Please never take/stick off or damage the marks and signs on the pellet burner and the fuel
transport auger. Please keep the burner genuine package until its initialization to operation, in
case it should be transported again.
If doing a repair, you must always use genuine spare parts only!
It is forbidden to make any changes to the internal installation of the pellet burner and fuel
transport auger or to change anything in any way.

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At the end of the pellet burner’s life cycle, it should be packed together with its parts and
disposed in an environmentally safe way.
The manufacture company is not responsible for damage or harms caused by non-compliance
with:
Terms and conditions stated in this manual for operation and installation.
Applicable standards and legal provisions.
Procedures for installation and operation.
Terms and conditions presented in the product warranty card.
Switch off the pellet burner every time when there is any (even momentary)
danger by the presence of flammable or explosive vapors situated in the same
room from which the burner intakes air for burning (for example painting paint
spraying or laying moltening substances, gas leakage, etc.).
2.2. ENSURING PEOPLE AND EQUIPMENT SAFETY
The wood pellet burner and all of its parts are in compliance with the safety requirements of
the relevant EU legal regulations.
In order to install and operate the pellet burner in real-time conditions and in compliance with
its usage designation (stated below only as usage), is necessary also to observe the additional
requirements, as most important of them (those that should not be missed) are presented in
the relevant regulation documents. In addition to the above mentioned documents for the
usage of the pellet burner it is also necessary to comply with this operation and installation
manual and the product accompanying documentation supplied by the manufacture company.
Any intervention over the pellet burner’s operation from children and persons under the
influence of narcotic substances, psychiatric abnormalities and etc., must be prevented.
3. OPERATION INSTRUCTIONS
3.1. OPERATION OF PELLET BURNER SERIES BISOLID GP XX_B
HC>
The pellet burner series Bisolid GP xx_B hc> must be handled only by adult people, which
have been already introduced to the burner operation and its proper handling. The people
operating the pellet burner must strictly comply with the installation and operation manual and
they have rights only to:
Clean the burner.
Fill up the transport auger with fuel.
Clean the photo-sensor periodically.
Adjust the water temperature (operation without optimization with room thermostat).
Change the optimization time (operation with room thermostat).
Check photo-sensor lightness. Do not change its settings.
Check for presence of alarm messages.
Check and adjust temperature for start of water circulations pump.

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Switch on or off the pellet burner. It is recommended to do it by the key Start, located
on the boiler’s control panel.
Check the pellet burner condition.
After initializing the pellet burner into operation the servicing technician is obligated to
introduce the user with the operation and maintenance of the appliance. Attendance of
children without supervision near the pellet burner is not allowed. Any interventions or
activities over the burner construction that may endanger the life or health of the handling or
attending personal are strictly forbidden.
Usage of flammable liquids for easier firing as well as any activities related to increase of the
pellet burner’s nominal heating output (overloading) are strictly forbidden. Positioning of
flammable objects near the burner is also not allowed.
In case of danger from penetration of flammable vapors or gasses in the boiler
room or any activities that may lead to fire or explosion (gluing the flooring,
varnishing with flammable paints or others), the pellet burner must be led out of
operation before starting any of these activities.
3.2. SAFE OPERATION OF THE PELLET BURNER
All safety prescriptions must be observed when the pellet burner series Bisolid GP xx_B hc> is
operating. The pellet burner must not be used for any other purposes except the ones
introduced in this operation manual.
The surface of the pellet burner should be cleaned only with standard inflammable cleaners.
Positioning of objects made of flammable materials over or near the pellet burner, at shorter
than the safe distance is not allowed.
It is not allowed to store flammable materials (wood, paper, oil and other flammables) in the
same room, where the pellet burner and the boiler are situated.
The recommended safe distance between the boiler, with installed pellet burner series Bisolid
GP xx_B hc>, and the fuel must be minimum 1000 mm.
The minimum allowed distance between the pellet burner’s outer parts and easy or medium
flammable materials, also including fuel, must be at least 400 mm.
Removal of the ash remainings from the burner should be performed by taking out the
combustion chamber fire-grate. The fire-grate, where the ash deposits gather, must be
emptied on time, before its complete filling. All activities related to removal of the ash from the
pellet burner should be performed after cooling of the fire-grate, as the usage of metal pliers is
strongly suggested. Please also use protection gloves as a safety measure.
When installing the pellet burner and the elements for safety and control please
do not forget that all installation works must comply with the safety labor
principles. If a pellet burner or fuel transport auger component replacement is
necessary, please use the recommended elements. In case of using any other
type of component you should ask the manufacturer company first. The pellet
burner and fuel transport auger functionallity must be checked by authorized
servicing specialist once per year.

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4. PELLET BURNER INITIALIZATION FOR OPERATION
4.1. PELLET BURNER CHECK-UPS BEFORE INITIALIZATION FOR
OPERATION
Before initializing the pellet burner for operation the servicing technician must check:
If the pellet burner series Bisolid GP xx_B hc> is going to be installed on a solid fuel
Bisolid hot water boiler.
If the installation, including the hot water boiler, complies with the project.
If the wood pellets correspond to standard EN ISO 17225-2:2014, class A1.
Electrical supply functionality and working order.
The service technician must train the consumer how to operate and manage
the pellet burner and also to fill in the exact start of operation date in the
warranty card of the product.
4.2. JOINT OPERATION OF PELLET BURNER AND SOLID FUEL
BOILER
The pellet burner series Bisolid GP xx_B hc> is allowed for installation only to hot water
boilers approved by its manufacturer.
The possibility for parallel operation of solid fuel hot water boiler with automated pellet burner
from series Bisolid GP xx_B hc> is based on the fact that the burner manufacturer has
performed multifunctional and precise tests and measurements over the pellet burner
operation with certain type of hot water boilers. Assembly of the pellet burner to a hot water
boiler must be performed with the appropriate installation kit.
The pellet burner’s series Bisolid xx_B hc> can be mounted to the hot water
solid fuel boilers with sufficiently high efficiency.

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5. OPERATION AND CONTROL OF PELLET BURNER FROM BISOLID
GP XX_B HC> SERIES
5.1. DESIGNATION OF THE PELLET BURNER CONTROLLER
The controller is designated to provide automatic control of the combustion process and
adjustment of the pellet burner’s heating output, depending on the building and premises
heating needs.
5.2. OPERATION OF THE PELLET BURNER CONTROLLER
The device can control the following system modules:
Fuel transport auger.
Fresh air and extraction fans.
Electrical heating element for ignition of the pellets.
Cleaner element for ash cleaning.
Circulations pump for the boiler.
At primary switch on, as well as when switching the power supply off, the burner
goes through stop procedure.
5.3. STARTING THE PELLET BURNER
When missing stop signal or in case of emergency situation and there is difference between
the adjusted and the measured temperature from the To sensor, then the burner starting
procedure initiates. The initial fuel doze is loaded and the ignition switches on. After
establishing the presence of flame the burner heating output increases. When the modulation
zone „Zone_reg” has been reached the burner heating output decreases (there is service
parameter for adjustment) and when the desired temperature has been reached the burner
operates at its minimum heating ouput. When higher than the adjusted temperature has been
reached, the system responds with stop procedure.
When the burner is in the modulation mode and therefore the power is reduced with a
decrease in temperature in the automatic way the power is increased.
Т
,
Т_set
T
P,%
P
ma
zone_reg
Т_set - zone_reg
P
m
i

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5.4. SWITCHING OFF THE PELLET BURNER
In presence of stop signal, emergency situation or measured temperature above the adjusted,
system stop procedure initiates. It is next followed by ventilation time, during which the
combustion chamber cools down and the remaining ash over the fire-grate is being blowed
out.
5.5. BURNER CONTROLL THROUGH GSM MODULE (OPTION)
The control of the burner trough GSM module is done by sending SMS commands. There is
an opportunity to stop, start and review the current status. (See section "SMS commands").
5.6. METHODS FOR FORMING THE DESIRED TEMPERATURE
5.6.1. MANUAL DETERMINATION OF THE HEATING WATER
ASSIGNMENT (Тb set)
In this case, the assignment is independent of other factors such as inside temperature and
the room temperature and the value is selected to maintain. (See section "Service Settings").
5.6.2. DETERMINATION OF THE HEATING WATER ASSIGNMENT ON
OUTSIDE TEMPERATURE THROUGH SENSOR Pt1000
Choice of temperature region.
With the choice of region is determined the curve in which will change the assignment for
heating water depending on the change in outside temperature. All curves have a common
point at an outside temperature of + 20 ° C, which corresponds to the minimum assignment for
the heating water.
W_max
W_min
To, °C
20
10
0
-10
-20

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5.6.3. DETERMINATION OF THE HEATING WATER ASSIGNMENT ON
ROOM TEMPERATURE THROUGH SENSOR Pt1000 IN THE ROOM
In this case is adjasted the desired temperature in the room and according to its value is
determined the heating water tempearture.
5.6.4. DETERMINATION OF THE ASSIGNMENT FROM ROOM
THERMO REGULATOR
This method is applicable only if is operating with contact room thermostats with
"independent output" (See section "Service Settings").
Time for optimisation.
Using of time for optimisation allows to reducing fluctuations in the assignment of the hot
water, which leads to a better control of the hot water. It can choose from 0 to 60 min, in
increments of 5 minutes. (See section "User settings").
When there are switches on and off from the room regulator and it operates without
optimization (0), the heating water adjustment becomes:
At start - maximum.
At stop – minimum.
When there are switches on and off from the room regulator and it operates with optimisation
(5-60 min.), the heating water adjustment becomes:
At start – increase starts, as the maximum assigned temperature value is reached at
the end of the optimization time, only in case there is no stop occured during this
period.
At stop – decrease starts, as the minimum assigned temperature value is reached at
the end of the optimization time, only in case there is no start occurred during this
period.
Т
,
Wmax ON
O
F
F
Wmin
W
Without optimisation
Т
,
Wmax ON
O
F
F
Wmin
W
With optimisation

INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Bisolid GP xx_B hc> . OM-BSGPHCV02/07/2017/EN17
5.7. TEMPERATURE AND SECURITY RESTRICTIONS
When managing the pellet burner series Bisolid GP xx_B hc> it is necessary to consider the
following temperature and security limitations:
Minimum assignemt for inlet water temperature.
Maximum assignemt for inlet water temperature.
Water freezing protection.
Boiler overheating and „back-fire” protection.
Circulations pump blocking protection.
Water freezing protection – starts the burner when the temperature is below 5
°С. Boiler overheating and „back-fire” protection – input signal from the blocking
thermostat, and when the signal contact is opened the burner stops.
Circulations pump blocking protection – drives/rotates the pump for 5 minutes,
in case it has not been operating for at least 24 hours.
The minimum and the maximum assignment of the heating water temperature determinate the
limits of the supplied water to the premises. (See "Service Settings").
5.8. FRONT CONTROL PANEL OF THE PELLET BURNER
The front control panel is presented in Figure 4 – intuitive LCD display of pellet burner series
Bisolid GP xx_B hc>.
Figure 4. Front control panel of pellet burner series Bisolid GP xx_B hc>
1. Front panel indication – intuitive LCD display.
2. Changing button “next” / or manually switching on/off the pellets transport auger (if
holded for 5 sec. together with additionally known conditions described below).
3. Changing button “back”.
4. Button for enter / exit from programming mode (user settings), switch ON / OFF (if
holded for 5 sec).
5. Button ON / OFF.
3
4
5
1
2

INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Bisolid GP xx_B hc> . OM-BSGPHCV02/07/2017/EN18
In the basic state the display shows the following parameters:
1. Time and day of the week.
2. Execution of weekly program N ....
3. Stop / Start / Burn - performed procedure.
4. Current exploited power.
5. Indicator cleaner work / entry into cleaning.
6. Indicator ignitor operation or alarm.
7. Indicator work auger blinks in manual switching.
8. Indicator working fans.
9. Indicator working pump.
10. Tr - room temperature (assignment) / To-inside temperature (curve) / Rth-room thermostat
/ when not press a button, information about the current operation.
11. Tfg - temperature flue gas (assignment).
12. Fire - light sensor (assignment).
13. Tb - water temperature.
5.9. OPERATION (FUNCTIONING) OF THE PELLET BURNER
In this part of the operation manual is presented information only for the users.
The information for servicing specialists is presented separately.
The controller of the pellet burner is swithcing on and off by pressing and holding the button
ON / OFF. When the burner is swithc off then appears "Stopped".
In the off position when on the display shows one of the above messages by pressing and
holding for about 10 seconds on the button „” can be switched on and off in manual way
pellet auger with aim filling when the auger is empty.
Before manually switching on of pellet burner you have to verify that the burner
is burnt out.
With buttons „”or „” scroll until on the display is shown the menu with the desired
parameters, then press „”:
For choice of settings, scroll move the cursur „*” with buttons „”or „”to make
change and return to choice of settings press button „”.
The setting which changes startsto blink, with buttons „”or „”you can change the
net value.
After completing the settings, select „EXIT” and press button „”to save the
changes.

INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Bisolid GP xx_B hc> . OM-BSGPHCV02/07/2017/EN19
The controller (the pellet burner) can be switched on or off by the front panel or
by the remote control electrical input. The remote control input is usually
connected to a START key with two resistant positions. WE RECOMMEND
THAT THE BURNER IS SWITCHED ON OR OFF BY THIS START KEY!
The controller switches off no matter which source sends STOP command, but
can be switched on only when there is START command on both places.
5.9.1. USER’S SETTINGS
Table 3. Parameters of pellet burner user’s settings
5.9.2. WEEKLY TIMER
NAME DESIGNATION LIMMITS FACTORY
SETTING
Assignment for:
Water temperature (manual)
Room temperature
Room thermostat -optimisation
Temperature region
(depends on „Type control”)
Tb set
Troom set
Rth delay
region
Tmin – Tmax °C
5 – 35 °C
0 – 60 min
-20 ÷ 20 °C
80 °C
22 °C
0
-10 ÷ 20 °C
Assignment sensor light Fire set 0 – 99 % 50 %
Assignment flue gases
temperature
Tfg set 0 – 250 °C 40 °C
Assignment switch on pump Tpump set 10 – 70 °C 40 °C
Current time and day time&d hh/mm/d
Language Language Eng / Bul Eng
User’s Settings
*Troom set 22°C
Fire set 50%
Tfg set 80°C
Tpump set 40°C
User’s Settings
time&d 08:30 Fr
Language Eng
EXIT
Weekly timer
*Program 1
00:00 to 24:00
SuMoTuWeThFrSa
EXIT

INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Bisolid GP xx_B hc> . OM-BSGPHCV02/07/2017/EN20
Table 4. Parameters of weekly timer settings
To operate the controller must be set interval to work at least one of the four
programs. When set to the same start and end time of the interval program is
inactive.
Switchng off on weekly timer is indicated by Pr.0, at work displays the number of the relevant
active program (Pr.1 - Pr.4).
5.9.3. INFORMATION ON ALARM MESSAGES
The presence of an alarm message on the pellet burner is indicated by an icon .
Table 5. Information on alarm messages
ОК – normal condition, Err – alarm message.
NAME DESIGNATION LIMMITS
Program number Program 1 - 4
Interval 00:00 – 24:00
Day of the week SuMoTuWeThFr
Sa
Su – Sa
(from Sunday to
Saturday)
NAME DESIGNATION CONDITION RECOVERY
No flame No Fire OK / Err Switch off and on
Danger of frost Low Tb OK / Err Increasing of
temperature
Overheat
(activated blocking
thermostat)
In BT OK / Err Switch off and on
No airflow
(device for flow)
Air flow OK / Err Switch off and on
Alarm
No Fire OK
Low Tb OK
In BT OK
Air flow OK