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Maximum Power 

75W 

Speed Stage 

Pump Water Outlet 
Connection 

G3/4 (External Thead) 

Manometer Connection 

Closed 

Drain Valve 

Integrated pump 

 

Water Pressure Sensor 

The water pressure sensor prevents the device from operating at low water pressure. When the water 
pressure at the central heating circuit falls below 0.4 bar, the normally open water pressure sensor 
closes and blocks the operation of the mainboard combination with the signal from the water pressure 
sensor. When the water pressure rises above 0.8 bar, the boiler returns to normal operation. The water 
pressure  sensor  is  located  on  the  flow  manifold  (in  the  central  heating  flow  line).  Sensors  are 
assembling with clips. Option 1 and 2 are using same water pressure sensor.  
 

 

 

Plate Heat Exchanger 

The  plate  exchanger  is  a  second  exchanger  that  provides  heating  of  the  domestic  hot  water  in 
monothermic  models.  When  hot  water  is  needed,  the  3-way  motorized  valve  directs  the  central 
heating water from the main exchanger to the plate heat exchanger. The plate heat exchanger allows 
heat to be transferred to the domestic hot water as it passes through the central heating water. For 
24 kW combi boiler, 10 plate plate heat exchanger is used. The plate exchanger is mounted on the 
hydroblock with 2 imbus bolts. O-ring sealing is provided at the inlet and outlet of domestic hot water 
and central heating water. 
 

Turbine (Water Flow Sensor) 

Turbine measures domestic hot water flow. In both bitermic and monothermic models, it is integrated 
in the hydroblock (return manifold). When the water is flowing, the turbine turns and forms a magnetic 
field. The Hall effect sensor collects the generated magnetic field and informs the electronic card. The 
electronic card controls the operation of the hot water according to the frequency values from the 
turbine type. When the water flow frequency reaches 3 lt/min, the hot water enters the operating 
circuit and when it falls below 2,5 lt / min the hot water operation ends. 
 

Содержание GP11

Страница 1: ...GP 11 13 16 20 24 kW HM HERMETIC MONOTERMIC COMBI BOILER SERVICE MANUAL...

Страница 2: ...n System The appliance must be on stand by to activate the frost protection Water Flow Inspection Pump Dry Run Protection System 3 Way Valve Anti sticking Function Automatic Air Vent Expansion Vessel...

Страница 3: ...ter 7500 hours Service reminder time is cleared and 7500 hours counting is restarted if 20 is written to PP31 Parameter No Parameter Name Parameter Value Definition Factory Setting Range PP31 Paramete...

Страница 4: ...correctly connected and the function enabled Parameter No Parameter Name Parameter Value Definition Factory Setting Range PP15 Outdoor Sensor Type 0 0 1 0 Outdoor sensor not available 1 Outdoor sensor...

Страница 5: ...that mode frost protection is ready to activate When device gave a fault turn knob to OFF position and wait 3 second for fixing the fault and then turn previous mode When this knob turns to left devi...

Страница 6: ...t for 5 seconds Display will show the parameter value To change the parameter value move P3 to WINTER position Move P1 DHW knob to modify the value of selected parameter Move P3 to OFF position Wait f...

Страница 7: ...8 SERVICE PARAMETER LIST...

Страница 8: ...9 OPERATION PARAMETERS...

Страница 9: ...four times and then leave knob in WINTER position Fault history menu is entered with displaying L0 For example if the latest occurred error is F01 it is logged in L0 and seen as below To increase the...

Страница 10: ...not given during CH operation CH flow NTC probe error F3 If CH flow NTC probe is open or short circuit or it is damaged this error is given Both DHW and CH demand is stopped during this error Normal o...

Страница 11: ...is not DHW demand this fuction is activated If DHW heat demand is available on power on firstly DHW demand is supplied air purge is started after DHW is closed If the device is in OFF position on powe...

Страница 12: ...displayed on LCD Flame symbol is ON if the flame is available DHW INSTANTENOUS HEATING MODE The DHW Instantaneous function has higher priority than the central heating function DHW Instantaneous Heati...

Страница 13: ...TC probe firstly PP15 Outdoor sensor type parameter s value must be changed to Outdoor sensor available 1 Outdoor temperature measurement starts only if PP15 is selected as 1 If PP15 is selected as 1...

Страница 14: ...ting is restarted if 20 is written to PP31 ANTIFREEZE FUNCTION If the water temperature measured by the CH flow NTC probe is under the low limit for No frost ON temperature in table 1 the burner is tu...

Страница 15: ...m and maximum heating capacity becomes adjusted by the determination of operation pressure range 15 SERVICE MODE Power off the control board Adjust the knob positions to P1 maximum P2 minimum P3 OFF P...

Страница 16: ...r is completely tightened Setting the minimum outlet pressure The device is taken to minimum operation by removing one of the gas modulation cables Gas outlet pressure measurement port s screw is loos...

Страница 17: ...as control The minimum and maximum operating pressures can be adjusted mechanically via the gas valve The modulation valve is set with the maximum output pressure the maximum pressure regulator adjust...

Страница 18: ...ween 1 0 1 5 bars filling tap can be closed Disassemble of filling tap Firstly disassemble the flow manifold and turn the tap Assemble of filling tap Turn the tap until closing the filling tap Pump Pu...

Страница 19: ...r is needed the 3 way motorized valve directs the central heating water from the main exchanger to the plate heat exchanger The plate heat exchanger allows heat to be transferred to the domestic hot w...

Страница 20: ...erature increases or the sensor resistance increases as the temperature decreases NTC sensors are usually identified with nominal resistance values of 25 C However this value does not fully define the...

Страница 21: ...t the start of operation the differential air pressure switch is on In the first stage the fan starts to run when the pressure difference rises above the set value within a certain period of time the...

Страница 22: ......

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