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3.8  AUTOMATIC SLOW IGNITION 

FUNCTION WITH TIMED RAMP 

DELIVERY.

In the ignition phase the P.C.B. carries out an 

increasing gas delivery ramp (with pressure 

values that depend on the type of gas selected) 

with preset duration. This prevents every 

calibration or precision adjustment of the boiler 

ignition phase in any conditions of use.

3.9  "CHIMNEY SWEEP FUNCTION"

When activated, this function forces the boiler 

at max. output for 15 minutes.

In this state all adjustments are excluded and only 

the safety thermostat and the limit thermostat 

remain active. To activate the chimney sweep 

function it is necessary to position the main 

switch on Reset for a time between 8 and 15 

seconds without DHW or CH requests. Its 

activation is signalled by the simultaneous 

flashing of the LEDs (2) and (3). This function 

allows the technician to check the combustion 

parameters. After the checks, deactivate the 

function switching the boiler off and then on 

again.

3.10 PUMP ANTI-BLOCK FUNCTION.

The boiler has a function that starts the pump at 

least once every 24 hours for the duration of 30 

seconds in order to reduce the risk of the pump 

becoming blocked due to prolonged inactivity.

3.11 THREE-WAY ANTI-BLOCK 

FUNCTION.

Both in “domestic hot water” and in “domestic 

hot water-central heating” phase the boiler is 

equipped with a function that starts the three-

way motorised group 24 hours after it was last 

in operation, running it for a full cycle so as to 

reduce the risk of the three-way group becoming 

blocked due to prolonged inactivity.

3.12 RADIATORS ANTI-FREEZE 

FUNCTION.

If the system return water is below 4°C, the boiler 

starts up until reaching 42°C.

3.13 P.C.B. PERIODICAL SELF-CHECK.

During functioning in heating mode or with 

boiler in standby, the function activates every 18 

hours after the last boiler check/power supply. In 

case of functioning in domestic hot water mode 

the self-check starts within 10 minutes after the 

end of the withdrawing in progress, for duration 

of approx. 10 seconds.

N.B.:

 during self-check, the boiler remains off, 

including signalling.

3.14 YEARLY APPLIANCE CHECK AND 

MAINTENANCE.

The following checks and maintenance should 

be performed at least once a year.

- Clean the flue side of the heat exchanger.
- Clean the main burner.
-  Visually check the draught-breaker/anti-wind 

device for deterioration or corrosion.

- Check ignition and operation.
- Check correct calibration of the burner in 

domestic hot water and central heating phases.

- Check the operation of the appliance control 

and adjustment devices and in particular: 

  -  intervention of the main electrical switch on 

the boiler;

  - system control thermostat intervention;
  - domestic hot water control thermostat 

intervention.

- Check that the internal system is properly 

sealed according to specifications.

- Make sure the ionisation flame control gas 

supply failure safety device is working. It must 

start-up in less than 10 seconds.

- Visually check for water leaks or oxidation 

from/on connections.

-  Visually check that the water safety drain valves 

is not blocked.

- Check, after discharging the system pressure 

and bringing it to zero (read on boiler pressure 

gauge), that the expansion vessel charge is at 1.0 

bar.

- Check that the system static pressure (with 

system cold and after refilling the system by 

means of the filling valve) is between 1 and 1.2 

bar. 

- Visually check that the safety and control 

devices have not been tampered with and/or 

shorted, in particular:

  - over-temperature safety thermostat; 
  - system pressure switch;
  - flue thermostat.
- Check the condition and integrity of the 

electrical system and in particular:

  - electrical power cables must be inside the 

fairleads;

  - there must be no traces of blackening or 

burning.

Содержание NIKE MINI 28 KW SPECIAL

Страница 1: ...NIKE MINI 28 KW SPECIAL Instruction and warning booklet IE 1 038788ENG ...

Страница 2: ... technical information for installing Immergas boilers As for the other issues related to boiler installation e g safety in the work site environment protection injury prevention it is necessary to comply with the provisions specified in the regulations in force and principles of good practice In compliance with legislation in force the systems must be designed by qualified professionals within th...

Страница 3: ...al heating system pressure 12 2 9 System draining 12 2 10 Anti freeze protection 12 2 11 Case cleaning 12 2 12 Decommissioning 12 3 Boiler start up initial check 13 3 1 Hydraulic diagram 13 3 2 Wiring diagram 14 3 3 Troubleshooting 14 3 4 Converting the boiler to other types of gas 15 3 5 Checks following conversion to another type of gas 15 3 6 Possible adjustments of the gas valve 15 3 7 Program...

Страница 4: ...ates the warranty Installation regulations theseboilerscannotbeinstalledinbedrooms studio flats and bathrooms They also cannot be installed in rooms with wood or solid fuel burning heat generators and in adjacent and communicating rooms Installation in places with a fire risk is prohibited for example garages closed parkingstalls gasappliancesandrelativeflue ducts flue exhaust pipes and combustion...

Страница 5: ...e type used in the boiler which must comply with the regulations in force as insufficient levels can reduce generator output and cause malfunctions Ensure correct gas cock connection by following the mounting instructions illustrated in the figure The gas supply pipe must be suitably dimensioned according to current regulations in order to guarantee correct gas flow to the burnereveninconditionsof...

Страница 6: ...ergas chrono thermostats are connected with 2 wires only Carefully read the user and assembly instructions contained in the accessory kit On Offdigitalchrono thermostat Thechrono thermostat allows set two room temperature value one for daytime comfort temperature and one for nighttime lower temperature set a weekly programme with four daily switch on and switch off times select the required operat...

Страница 7: ... dangerous situations for the user The flue ducts must be connected to the chimney or flue in the same room in which the appliance is installed or at most in the adjoining room and must comply with the requirements indicated by the regulation 1 8 FLUES CHIMNEYS For the appliances with natural draught individual chimneys and branched flues can be used Individual chimneys The individual flues must b...

Страница 8: ...supplyfailureandchecktherelative intervention time check activation of the main switch located upstream of the boiler The boiler must not be started up even if only one of the checks should be negative N B The preliminary boiler check must be carried out by a qualified technician The standard boiler warranty is valid from the date of inspection The test certificate and warranty is issued to the us...

Страница 9: ...ety thermostat 6 Fumes hood 7 Delivery probe 8 Safety thermostat 9 System expansion vessel 10 Combustion chamber 11 Boiler circulator pump 12 3 bar safety valve 13 Automatic by pass 14 Three way valve motorised 15 System draining valve 16 Primary heat exchanger 17 Ignition and detection electrodes 18 Vent valve 19 DHW heat exchanger N B connection group optional ...

Страница 10: ... other devices Never clean the appliance or connected parts with easily flammable substances Never leave containers or flammable substances in the same environment as the appliance It is prohibited and dangerous to obstruct the air intake even partially for the ventilation of the room in which the boiler is installed Due to the danger functioning is also prohibited in the same room as suction devi...

Страница 11: ...and 7 flash at the same time 04 Parasite flame block LEDs 1 and 7 flash at the same time 20 Loss of remote control communication LEDs 2 and 3 flash alternately 31 Insufficient water circulation This occurs if there is overheating in the boiler due to insufficient water circulating in the primary circuit the causes can be low system circulation check that no shut off devices are closed on the heati...

Страница 12: ...rmal pressure via the valve located at the bottom of the boiler Fig 2 2 N B close the valve after the operation If pressure values reach around 3 bar the safety valve may be activated In this case contact a professional technician for assistance In the event of frequent pressure drops contact qualified staff for assistance to eliminate the possible system leakage 2 9 SYSTEM DRAINING To drain the b...

Страница 13: ...he appliance e g a draught gauge positioned at the exit of the appliance combustion products check that there is no backflow of combustion products into the room even during functioning of fans ensure activation of all adjustment devices seal the gas flow rate regulation devices if settings are modified check the production of domestic hot water check sealing efficiency of water circuits check ven...

Страница 14: ...ect installation of the terminal Frequent interventions of the over heating safety thermostat It can depend on reduced water pressure in the boiler little circulation in the heating system the blocked pump or an anomaly of the boiler P C B Check on the pressure gauge that the system pressure is within established limits Check that radiator valves are not all closed The boiler produces condensate T...

Страница 15: ...operations must be carried out by a qualified technician e g Immergas After Sales Technical Assistance Service Burner adjustment must be carried out using a U or digital pressure gauge connected to the gas valve outlet pressure point Part 4 Fig 3 3 keeping to the pressure value provided in the tables Par 3 16 according to the type of gas for which the boiler is prepared Fig 3 3 P C B SIT 845 GAS V...

Страница 16: ... tables Heating output The boiler is produced and calibrated in the central heating phase at nominal output Permanent reduction of the timer The boiler has an electronic timing device that prevents the burner from igniting too often in the heating phase The boiler has a standard supply of a timer adjusted at 180 seconds Heating switch on timer continuous variation Flashing LED slow 30 seconds LED ...

Страница 17: ...r with boiler in standby the function activates every 18 hours after the last boiler check power supply In case of functioning in domestic hot water mode the self check starts within 10 minutes after the end of the withdrawing in progress for duration of approx 10 seconds N B during self check the boiler remains off including signalling 3 14 YEARLY APPLIANCE CHECK AND MAINTENANCE The following che...

Страница 18: ...panel 4 towards you taking care to remove the 2 fixing screws 5 3 16 HEAT OUTPUT N B gasflowratesrefertoheatingpowerbelowa temperature of 15 C and a pressure of 1013 mbar Burner pressure values refer to use of gas at 15 C METHANE G20 BUTANE G30 PROPANE G31 THERMAL POWER THERMAL POWER BURNER GAS FLOW RATE PRESS BURNER NOZZLES BURNER GAS FLOW RATE PRESS BURNER NOZZLES BURNER GAS FLOW RATE PRESS BURN...

Страница 19: ...ic hot water circuit flow limiter at 2 bar l min 9 3 Domestic circuit min pressure dynamic bar 0 3 Domestic hot water circuit max working pressure bar 10 Minimum D H W flow rate l min 1 5 Specific flow rate T 30 C l min 12 8 Flow rate capacity in continuous duty T 30 C l min 13 2 Weight of full boiler kg 33 9 Weight of empty boiler kg 31 0 Electrical connection V Hz 230 50 Nominal absorption A 0 4...

Страница 20: ...d Model Cod Md Model code Sr N Serial Number CHK Check Cod PIN PIN code Type Type of installation ref CEN TR 1749 Qnw min Minimum DHW heat input Qn min CH minimum heat input Qnw max DHW maximum heat input Qn max CH maximum heat input Pn min Minimum heat output Pn max Maximum heat output PMS Maximum system pressure PMW Maximum domestic hot water pressure D Specific flow rate TM Maximum operating te...

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Страница 24: ... immergas com Immergas S p A 42041 Brescello RE Italy Tel 0522 689011 Fax 0522 680617 Certified company ISO 9001 This instruction booklet is made of ecological paper Cod 1 038788ENG rev 002114 000 07 15 Inglese per IRLANDA IE ...

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