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Expansion Vessel 

The expansion tank meets the expansion of the 
hot  water  circulating  in  the  central  heating 
(heating circuit) circuit, which is a closed circuit 
system.  
Tank  volume  is  6  litres  and  inlet  connection 
point is G3/8 (external thread)  

 

 

Differential Air Pressure Switch (APS) 

The differential air pressure switch is used in hermetic models. It monitors air flow by measuring the 
pressure  difference  between  fresh  air  and  waste  gas  required  for  combustion.  When  there  is  a 
blockage in the hermetic chimney set or in the case of severel external air currents, the differential air 
pressure  is  switched  off  to  stop  the  combination  from  operating.  The  low  pressure  inlet  of  the 
differential air pressure switch is connected to the fan via a silicone hose. The high pressure inlet is 
again connected to the combustion chamber by means of a silicone hose.  
At 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 switch 
closes and the combination starts working. When the pressure difference falls below a certain value, 
the switch is opened and the combination is inhibited from operating. 
 

Fan 

The  fan  allows  both  the  discharge  of  exhaust 
gas and the fresh air required for combustion 
in the hermetic combination. 
 
Maximum power: 

 

48W 

Inner diameter of silicon hose : 5 mm 

 

Limit Thermostat 

Limit  thermostat  is  bimetal  type.  The  limit 
thermostat  opens  when  the  water  temperature 
from  the  exchanger  exceeds  105°C  and  stops  the 
operation  of  the  combination  by  cutting  off  the 
signal to the electronic board and provides safety. 
When the water temperature falls below 75°C, the 
limit  thermostat  switches  off  and  allows  the 
combination  to  restart  after  a  reset.  Limit 
thermostat is mounted in monotermic models with 
2  screws  (YSB  2.9  *  6.5)  to  the  upper  central 
heating flow pipe. 

 

 

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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