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11 

Pelletti XL 

Maintenance 

 

Check  regularly  that  the  system  is  filled  with  water.  If  you  have  to  add  water  permanently  it 
indicates availability of leakage in the system, which should be eliminated as soon as possible. 
Permanent  adding  of  fresh  water  leads  to  heating  system  corrosion  as  fresh  water  contains  air 
(oxygen). 

 

The hot system pressure should be lower than 1.5 bar and the cold system pressure higher than 
0.5 bar. Water volume changes depending on temperature - the higher the temperature, the big-
ger is the volume and pressure. Task of the expansion tank is to compensate volume changes.  

 

Preliminary pressure of the expansion tank shall be checked once in several years.  

 

Safety valves shall be checked at least 2 times a year by handle/ lever turning to prevent their 
sticking. Add water to the system after the check. 

 

In order to prevent corrosion observe that temperature in the boiler during pellet burning is 70ºC 
at least. 

 

Remove ash from the furnace. 

 

Clean the burner as per instructions of the burner manufacturer.  

Cleaning

Keeping a daily watch on the burning process 
in the boiler and making necessary adjust-
ments make the cleaning process a problem 
free and infrequent job. Good burning forms a 
thin grey or coffee colored layer on the firing 
surfaces of the boiler, which falls off itself. 
Poor burning forms a dirty layer of soot, ash-
es, and tar on the firing surfaces and inside 
the flue. This prevents thermal energy from 
transferring to water thus increasing the flue 
gas temperature and lowering the efficiency. 
Cleaning is performed through front hatches 
and also rear hatch in the following way:  
 
1.

 

Disconnect convection part cleanout 
opening on top of the boiler and clean the 
gaps between flue gas turbulators. After 
that place turbulators close to each other 
raising them simultaneously up approxi-
mately to 5 cm. At first install plates to-
gether to the rear end and clean the front 
plate, and also boiler surface and heat 
transfer plate. After that shift the plates to 
the front end and clean the rear plate, and  
boiler surface and heat transfer plate. 
Place turbulators on their places after 
cleaning. Check that clearance between 
the upper level of the front turbulator and 
front wall of the channel is approximately 

10 mm. Close thoroughly convection part 
cleanout opening 
 

2.

 

Disconnect burner and clean it as per the 
burner manufacturer's instructions (see re-
spective instructions). 

 
3.

 

Remove the turbulator from the upper part 
of the furnace. Clean fired surfaces of the 
furnace with metal brush and remove ash 
from the chest. Remove by scraper ash 
from the bottom of convection part 
cleanout opening. 

 
4.

 

Install ash chest and the furnace turbulator 
onto their places and close thoroughly the 
burner hatch. Close hatch hook by reten-
tion screw, which prevents accidental 
hatch opening.  

 
5.

 

Install the burner and check correctness of 
its functioning.  

Содержание PELLETTI XL

Страница 1: ...2 1 2020 Pellet boiler PELLETTI XL INSTALLATION AND OPERATION MANUAL JÄSPI HEATING EXPERT www kaukora fi ...

Страница 2: ...llation 6 Boiler Room 6 Stack 6 Piping Installation 6 Heat Connection Example 7 Electric Wiring 8 Electric Connection Diagrams 8 Boiler Operation and Maintenance 10 Control Panel 10 Maintenance 11 Cleaning 11 Troubleshooting 12 The boiler water temperature does not rise to the desired level 12 The boiler boils and sputters 12 The flue gas temperature is too high 12 Warranty 12 Installation record ...

Страница 3: ...y to clear up necessity in free space pellet storage and frequency of boiler cleaning Installation shall always be per formed by qualified personnel knowing requirements of official control authorities It is recommended to use energy accumula tors in combination with pellet burner as it increases operating cycle improves operating level and reduces emissions Technical Data Power range 15 30 kW Wei...

Страница 4: ...d stack fitting with 180 turn and upward vertical exit 8 Cleanout 9 Convection part cleanout opening 10 Accumulator inlet boiling adapter R25 i t 11 Hot water supply coil adapters Ø 22 12 Adaptor of thermal safety valve sensor R15 i t 13 Mixture valve flange R20 i t 14 Draft regulating damper adapter R20 i t 15 Accumulator return expansion adapter R25 i t 16 Electric leads ...

Страница 5: ...5 Pelletti XL Boiler Sectional View 1 Convection part cleanout opening 2 Front turbulent plate 3 Rear turbulent plate 4 Turbulent furnace plate 5 Ash chest ...

Страница 6: ... shall be sufficient so that flue gases do not cause problems for surrounding buildings Recommended height is 5 m minimum Piping Installation It is recommended to connect the boiler to energy accumulator with volume of 500 1 500 l It is recommended to build in 3 thermometers in lower medium and upper parts For easier filling and drainage of the system connections of the boiler accumulator and heat...

Страница 7: ...ve 1 5 bar 2 pieces 3 PE XL Heating boiler 4 Hot water supply valve bank 5 Charging pump 6 GTV 700 accumulator 7 Charging valve 8 Heating loop pump 9 Hot water supply coil of the boiler 25 l min 10 Boiler water filling valve 11 Heating circuit 12 TERMOMAT 3 Charging automatics ...

Страница 8: ...k located behind opening sensor panel Electric Connection Diagrams Burner Connection Diagram POWER SUPPLY FROM BURNER CUT OFF SWITCH BURNER BURNER CUT OFF SWITCH BURNER THERMOSTATIC REGULATOR TEMPERATURE LIMITER CAUTION In system with 3 wired burner add jumper 1 2 voltage to the burner from connection terminal 3 ...

Страница 9: ...DIAGRAM ADDITIONAL ELECTRIC CAPACITY CONNECTION DIAGRAM POWER SUPPLY FROM TEH MAIN SWITCH TEH THERMOSTATIC REGULATOR TEMPERATURE LIMITER INDICATOR LAMP TEH POWER SUPPLY FROM TEH MAIN SWITCH TEH TEH THERMOSTATIC REGULATOR TEMPERATURE LIMITER INDICATOR LAMP ...

Страница 10: ...ature in the boiler 2 TEH temperature limitor switches off TEH if water temperature in the boiler exceeds 98 C Limiter shall operate only in case of improper operation or the instrument failure Limiter acknowledgement is performed by a sharp object pressing on acknowledgement push button Water in the boiler shall cool down before acknowledgement 3 Electric heating indicator lamp is on when TEH is ...

Страница 11: ...ayer of soot ash es and tar on the firing surfaces and inside the flue This prevents thermal energy from transferring to water thus increasing the flue gas temperature and lowering the efficiency Cleaning is performed through front hatches and also rear hatch in the following way 1 Disconnect convection part cleanout opening on top of the boiler and clean the gaps between flue gas turbulators Afte...

Страница 12: ...e boiler is cooled down the system can be filled with water and heating process can be started again Check that the pump and the mixing valve are working and check the circulation through the pump and piping The air pre sent in the system can inhibit water circu lation The flue gas temperature is too high Flue gas temperature shall not exceed 350 ºC as stacks do not tolerate high temperatures Clea...

Страница 13: ... the boiler Year of manu facture Boiler type Installer company Date Wiring installer company Date System tuning training Installer company Date Date Flue gas temperature Reduced flue pressure Preliminary pressure of expansion tank Signature ...

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