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Summary of Contents for Pelltech PV 20a
- Page 1 Pellet burner PV 20a User manual...
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Page 2: Table Of Contents
PV 20a Table of content Table of content.............................2 Description.............................4 Fuel..............................7 Installation..............................7 Boiler requirements..........................8 Burner...............................10 Pellet container..........................11 External auger..........................12 Electrical connections........................12 Operation.............................14 Starting.............................15 Log..............................15 Settings.............................16 Info Menu............................17 Languages............................17 Refilling fuel............................18 Maintenance............................19 Working principle..........................21 Testing..............................21 Loading.............................21 Igniting..............................21 Preburn.............................21 Burning.............................22 Auger control..........................22 Fuel level detection........................22 Output power levels ........................22... - Page 3 PV 20a Safety precautions Do not start the burner before it is connected to the boiler and the boiler is connected to the chimney. It is recommended to wear a respirator while handling pellets. The boiler room where the burner is installed must fulfill all rules and recommendations given by authorities.
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Page 4: Description
8. User manual Description PV 20a is a pellet burner that is intended to be used with 6 or 8mm wooden pellets. You cannot use any other fuel to run this burner. The unique construction of PV 20a allows it to be used with different boilers: liquid fuel, solid fuel and universal boilers. - Page 5 PV 20a Burner main components are shown on Figure 1 1. Burning chamber 9. Feed screw motor 2. Feed screw 10. Fan 3. Safety cut off thermostat 11. Fuel level sensor 4. Mains transformer 12. Mounting nut 5. User interface joystick 13.
- Page 6 PV 20a Figure 2 Dimensions Table 1 Specification Unit PV 20a total length burner body length burning chamber length ⌀D burning chamber diameter ⌀D1 88.9 burning chamber neck diameter ⌀D2 internal feeder inlet diameter total height burner housing height total width...
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Page 7: Fuel
Only premium class pellets can be used with PV 20a. Refilling must be carried out before the storage runs empty. In case it happened, burner has to be restarted and the loading time can be up to 20 minutes that external auger has enough time to refill itself. -
Page 8: Boiler Requirements
PV 20a • The boiler must be positioned in a way that there is enough space for cleaning the burner, the boiler and the smoke pipe and removing the ash. If flue gas temperature at the top of the chimney is less than 80C , there is a risk of condensation. - Page 9 20a, minimum of 420mm is acceptable (leaving L1 approx. 250mm). The height should be enough to leave H1 below the burner about 100mm for ash. Minimum dimensions L and H for PV 20a: L≥420mm; H≥350mm. Figure 5 Boiler firebox requirements Burners are mounted to door using supplied oil burner flange.
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Page 10: Burner
PV 20a Burner In order to install the burner properly, you must go through the following steps: 1. Remove the cover of the burner by loosening 4 screws of the cover. There is no need to remove the screws. 2. Remove the burning chamber from the burner by releasing the M6 nut that connects the halves of the burner. -
Page 11: Pellet Container
PV 20a 4. Fix the burning chamber (8). For that you need to put a ceramic seal (4) on the narrower side of the burning chamber and then put the camber through the door of the boiler in a way that the rearward wall of the burning chamber would lean on the door of the boiler. -
Page 12: External Auger
PV 20a External auger A feeding auger transports pellets from the pellet container to the burner. The burner controls the work of the auger. The auger is connected to the burner with a special hose. The hose is made of melting material that acts as a safety measure against back-burning. - Page 13 PV 20a Figure 8 Burner 5-wire connection Figure 9 Burner 4-wire connection Chs – Chassis grounder R1 – Flame sensor M1 – Fan SBB – Controller board M2 – Flue gas fan* Se – Igniter M3 – External auger TR – Transformer M4 –...
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Page 14: Operation
PV 20a Operation The burner is controlled via user interface on the front panel. LCD screen (1) displays settings menu, event log etc. Yellow light (2) shows the presence of flame in burning chamber. Or if blinking, the burner is out of normal operation. Status can be seen on log screen. Green light (3) indicates if there is fuel in the burner. -
Page 15: Starting
PV 20a Figure 10 Front panel Starting Prior to the initial start-up of the burner make sure that: The burner is connected to the boiler • The boiler thermostat is installed and is functioning properly • • The boiler thermostat is turned to lowest temperature The external auger is installed and connected to the burner •... -
Page 16: Settings
PV 20a Table 4 Burner states Description Status STOPPED The burner is not switched on. WAITING The burner is switched on and waiting for command from the thermostat of the boiler. TESTING Testing the fan, battery, feeder. LOADING Loading pellets into burner for ignition after the command from boiler thermostat. -
Page 17: Info Menu
PV 20a PELLETS Select fuel quality NORMAL NORMAL/LIGHT/HEAVY POWER Actual power level AUTO AUTO/10/12/14/16/18/20 BASE AIR Fan speed correction for all fan -2/-1/0/+1/+2/+3/+4/+5 speeds LANGUAGE Language selection * See language list PARAMETERS -> Parameter setup menu *1 – see “Status menu description”... -
Page 18: Refilling Fuel
PV 20a BURN AIR @14kW Fan speed at power level 3 BURN AIR @16kW Fan speed at power level 4 BURN AIR @18kW Fan speed at power level 5 BURN AIR @20kW Fan speed at power level 6 TESTING AIR... -
Page 19: Maintenance
Starting. Failing to do so will result ‘No Pellets’ due to fuel loading timeout. Maintenance Pellet burner PV 20a requires systematic maintenance. The maintenance period depends on the quality of the pellets and heating intensity. The average maintenance period is 1 week. The burner needs cleaning when the ash layer on the grate is thicker than 1.5-2 cm. - Page 20 PV 20a Resetting safety thermostat In case of overheating the burner flashes yellow indicator and displays message OVERHEAT. The safety thermostat must be reset manually. Thermostat is located on the horizontal tube of inner auger. 1. Make sure the burner has cooled down and disconnected from power supply.
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Page 21: Working Principle
PV 20a Working principle Testing Before every startup the burner tests itself. At testing time fan is turned on at maximum power. If its speed doesn´t reach 30 rps, “fan error”will occure on display. Battery loading is turned off and feeder is turned on. -
Page 22: Burning
PV 20a Burning The running position of the burner. Fuel is periodically added and fan is keeping speed according to air table. Burning state lasts until boiler thermostat is switched off. Auger control External auger is holding permanent fuel level in the feeder tube during Burning state. The auger is controlled by fuel level sensor in following manner: •... -
Page 23: End Burn
Only the fan keeps on working with speed shown in par9 to burn out all coals. Feeder is turned off. This state lasts until no flame is recognized plus one minute. Table 7 Air table for PV 20a Power [kW]... -
Page 24: Controller Board Description
PV 20a Controller board description Figure 11 Controller board www.pelltech.eu... - Page 25 PV 20a Table 8 X1 and X2 connectors Description Description Ash removal + Igniter Ash removal - Igniter Ash removal + Battery positive terminal Flue gas fan Battery negative terminal Mains transformer Flame sensor Mains transformer Flame sensor Feed screw - (black)
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Page 26: Problems And Solutions
PV 20a Problems and solutions Error states Cause Action Stopped This is actually not an error condition. To turn burner on: Burner is turned OFF from menu. - hold down OK button at least 3s - change row BURNER from OFF to ON in... -
Page 27: Warranty
PV 20a Warranty Warranty object is pellet burner PV 20a and auger PA1500 or PA 2000. Producer gives 2 years warranty from the date of sale for the burner and auger. Exeption is ignition element, for this item warranty is 1 year. - Page 28 PV 20a WARRANTY SHEET PV 20a Burner type Serial number ......Date of sale ../ ../ ..Customers contact details ..........................Installators name and signature ........... - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
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