background image

– Remove the three screws securing the fan.
– Tilt the fan forwards and remove in a downwards direction.
– Inspect the fan assembly and clean if necessary.

5.3

HEAT EXCHANGER

Inspect  the  heat  exchanger,  and  clean  if  necessary  as
showed in fig. 16.

5.4

WATER FLOW SWITCH

– Revome  the  cover  from  the  micro  assembly  to  gain

access to the flow switch spindle.

– Ensure the spindle is free to move (see fig. 17).
– Re-assemble the cover.

5.5

CHIMNEY SWEEP FUNCTION
(combustion analysis)

To carry out the verification of combustion in the boiler turn
the  selector  and  stop  on  the  position  ( )  until  the
green/orange  led  starts  to  flash  intermittently.  From  that
moment  the  boiler  will  start  functioning  in  heating  mode  at
the  maximum  power,  with  switching  off  at  80°C  and  restar-
ting at 70°C. 

Before  activating  the  chimney  sweep  function  make  sure
that the radiator valves or eventual zone valves are open.

The test may be carried out also during D.H.W. mode. To do
so  it  is  enough,  after  having  activated  the  chimney  sweep
function,  to  take  some  hot  water  from  one  or  more  outlets.
Even in this condition the boiler functions at the maximum
temperature always with the primary controlled between
80°C and 70°C. During the entire duration of the testing the
hot water taps must remain open. After verifying the combu-
stion the boiler should be switched off by placing the selector
on the 

OFF

position; then return the selector to the desired

function.

ATTENTION:  After  about  15  minutes,  or  once  the  hot
water request has been fulfilled, the chimney sweep func-
tion automatically deactivates.

5.6

RE-ASSEMBLY

– Re-assemble  all  the  components  in  reverse  order  and

replace all the gaskets fitted in the gas line. 
Ensure that all seals are correctly fitted and that the pres-
sure sensing line is correctly fitted. 
Check that the fan earth connection is correctly re-fitted.
Note that the fan polarity (Line and Neutral) is immaterial. 

– Check for gas soundness before fitting the casing.

5.7

RE-COMMISSIONING

– Turn  on  the  gas  supply,  and  check  for  gas  soundness

whilst the appliance is running.

– Check  the  operation  of  the  appliance  in  both  C.H.  and

D.H.W.  mode  and  ensure  in  both  cases  that  the  burner
pressure after at least 5 minutes running is as stated on
the  data  plate  or  in 

Table  4.  Adjust  if  necessary  as

15

8 SEALED CHAMBER SCREWS

BURNER MANIFOLD

UNION

3 FAN FIXING SCREWS

7 COMBUSTION CHAMBER

FRONT PANEL SCREWS

MAIN EXCHANGER

Fig. 16

Fig. 17

Содержание FORMAT 34E BF

Страница 1: ...Format 34I 34E BF AUS ...

Страница 2: ......

Страница 3: ...showing on the pressure gauge Is the Auto Air Vent open Has the pump been rotated manually Is the gas supply working pressure correct Is the boiler wired correctly See installation manual Has the D H W flow rate been set to the customer requirements Has the customer been fully advised on the correct use of the boiler system and controls 1 TECHNICAL FEATURES AND DIMENSIONS 2 2 GENERAL REQUIREMENTS ...

Страница 4: ...tput has an adjustable output of 11 2 34 kW NOTE The boilers must not to be used for pool or spa heating The boilers must be installed only by an autho rised person 1 TECHNICAL FEATURES AND DIMENSIONS TABLE 2 Minimum clearances For ventilation For servicing ABOVE THE APPLIANCE CASING 400 mm 300 mm AT THE R H S 15 mm 15 mm AT THE L H S 15 mm 15 mm BELOW THE APPLIANCE CASING 200 mm 200 mm IN FRONT O...

Страница 5: ...kPa 0 5 Static head Maximum bar psi 3 0 43 5 Minimum bar psi 0 5 7 3 D H W pressure Minimum bar psi 1 0 14 6 Maximum bar psi 6 0 87 Weight Empty kg lb 40 88 Total full kg lb 44 7 98 Electrical supply 230 V 50 Hz Fused at 3 A Internal fuse Line F 1 6 A Maximum power consumption Watt 160 Maximum gas consumpt Natural gas m3 h 3 68 Maximum gas consumpt Propane kg h 2 74 2 70 Max working temperature C ...

Страница 6: ...lve 14 Drain plug 15 Water flow switch 16 Temperature and pressure gauge 17 Automatic by pass 18 D H W filter Fig 2 6 12 11 10 9 8 7 5 4 3 2 1 13 14 19 1 5 INTERNAL VIEW KEY 1 Control panel 2 Ignition transformer 3 Combustion chamber 4 Fan 5 Combustion analysis intakes 6 Negative pressure intake 7 Positive pressure intake 8 Air pressure switch 9 C H sensor SM 10 Main exchanger 11 100 C safety stat...

Страница 7: ...ULATIONS WHICH MAY BE APPLICABLE For installations where the heater is connected to larger systems the additional volume will need to be taken into account A temperature pressure relief valve may be needed An adhesive data plate is sticked inside the front panel it con tains all the technical data identifying the boiler and the type of gas for which the boiler is arranged 2 3 CHARACTERISTICS OF FE...

Страница 8: ... system heads H greater than 3 m The maximum flow through the by pass is about 300 l h If thermostatic radiator valves are to be installed at least one radiator should be without a thermostatic valve usu ally the bathroom radiator c The following paragraphs outline the specifications of the items fitted to the boiler 2 7 1 Pump The available head shown in fig 5 is that in excess of the appliance h...

Страница 9: ... say over 150 ppm the fitting of an in line scale inhibitor may be an advantage Consult the Local Water Undertaking if in doubt Devices capable of preventing the flow of expansion water e g non return valves and or loose jumpered stop cocks should not be fitted unless separate arrangements are made for expansion water For specific information relating to fittings eg Showers washing machines etc su...

Страница 10: ...in position using the screws provided Ensure that it is the correct way up as indicated in fig 6 3 2 HANGING THE BOILER Lift the appliance into position The upper cross member locates onto the wall mounting bracket Screw in the wall mounting bracket adjusting screws until the appliance is secure and vertical 3 3 FLUE DUCTS MODEL 34I BF The air inlet smoke outlet assembly ø 60 100 is supplied in a ...

Страница 11: ...al flue is less than 1 5 metres With outlet type C32 use the following diaphragms depending on flue length and without any additional curves Installations with vertical extension L 200 Installations with condensation code 8086908 collector code 8092803 Optional Standard Standard None diaphragm ø 86 diaphragm ø 87 5 diaphragm ø 87 5 diaphragm cód 6028623 L min 1 3 m L min 2 5 m L max 2 5 m L min 2 ...

Страница 12: ...ig 12 Disconnect the electric power supply before performing any work Warning all components in the control panel are fed with 240V Remove the three screws 7 locking the control panel in place and pull the panel forward until it can be tilted downward To access the components of the electrical panel unscrew the four screws holding the protective guard in place 5 To gain access to connector TA remo...

Страница 13: ...ving removed the three fixing screws tilt the panel downward to gain access KEY 1 Temperature and pressure gauge 2 Time programmer housing 3 Rotary switch 4 Main PCB 5 Earth faston 6 Control panel protection 7 Cover TA 8 Connector TA 9 Fixing screw ...

Страница 14: ... at least 5 minutes and check the burner pressure The heating input is factory set as stated in Table 4 If the heating output is to be adjusted proceed as follows refer to section 1 3 and establish the desired burner pressure remove pull forwards the C H knob protecting the potentiometer set the burner pressure as required using a small screwdriver on potentiometer 1 fig 14 Rotate the screw anti c...

Страница 15: ...r Explain and demonstrate the lighting and shutdown proce dures Advise the householder on the efficient use of the system including the use and adjustment of all system controls for both D H W and C H Advise the user of the precautions necessary to prevent damage to the system and to the building in the event of the system remaining inoperative during frost conditions Explain the function of the b...

Страница 16: ...care not to dam age the insulation Remove the electrode by unscrewing it from the burner manifold Unscrew the burner manifold union and locking nut Lift the front of the burner to disengage manifold thread and then lift the burner clear Remove the burner manifold by disconnecting the four screws Inspect and if necessary clean the injectors electrodes and the main burner bars 5 1 2 Model FORMAT 34E...

Страница 17: ...e maximum temperature always with the primary controlled between 80 C and 70 C During the entire duration of the testing the hot water taps must remain open After verifying the combu stion the boiler should be switched off by placing the selector on the OFF position then return the selector to the desired function ATTENTION After about 15 minutes or once the hot water request has been fulfilled th...

Страница 18: ... 5 8 CLEANING THE C H WATER FILTER fig 18 To clean the filter close the delivery return on off taps turn off the power to the control panel remove the casing and empty the boiler using the drain provided 14 fig 2 until the hydrometer shows zero Place a container for collection underneath the filter unscrew the cap and proceed to clean the filter removing impurities and limestone deposits Check the...

Страница 19: ...al block Test leads from L to N meter reads approx 240 V ac Test leads from L to E meter reads approx 240 V ac Test leads from N to E meter reads from 0 to 15 V ac 6 4 RESISTANCE TO EARTH CHECK Appliance must be disconnected from main supply and meter on Ω ohm x 100 scale All switches including thermostat on test leads from L to E if meter reads other than infinity there is a fault which should be...

Страница 20: ...n transformer Does it spark now Turn the clock to the right position Close room thermostat contact Replace the fan Is there voltage available to the pump Replace the clock Check pump connection Is pump shaft free to rotate Replace the pump Make it free to rotate Has the PCB ignition locked out after 10 seconds without flame at the burner Has the PCB ignition locked out after 10 seconds with flame ...

Страница 21: ... there 230V ac available at the fan terminals Replace the PCB Replace the pump Replace the divertor valve Replace the fan Check filter at inlet of hydraulic group Has the PCB ignition locked out after 10 seconds without flame at the burner Has the PCB ignition locked out after 10 seconds with flame at the burner before lock Is the gas available Open the gas cock Is the safety thermostat OK Replace...

Страница 22: ...ng removed the link To remote control the boiler connect an external clock to the terminals 10 11 24 V of the TA connector and set the built in clock to constant mode see user instructions for details JUMPERS POSITION AND FEATURES JUMPER POSITION AND FEATURE SUPPLY POSITION CLOSED OPEN J7 METANO GPL Ready to function with LPG Ready to function with natural gas Open J8 ANN RIT Ignition delay cancel...

Страница 23: ...5 1 Disconnect the electrical connections and the pressure sensing pipes to the fan Note the position of the earth conductor Unscrew the three screws securing the fan Drop and tilt the fan forwards and remove in a down wards direction Re assemble in reverse order Ensure that the earth con nection is correctly refitted Note that the polarity Line and Neutral is immaterial 8 4 MAIN BURNER Remove the...

Страница 24: ...e in reverse order referring to the wiring dia grams section 7 if necessary Ensure that the pressure sensing lead is correctly connected to the low pressure connection on the pressure switch marked P2 8 8 OVERHEAT THERMOSTAT The overheat thermostat is situated on the flow pipe below the sealed chamber 11 fig 3 Remove the casing front panel as described in section 5 1 Disconnect the two overheat th...

Страница 25: ...rarily Refer to section 3 5 Remove the adjusting screws on the wall mounting brack et thereby allowing the appliance to move slightly for wards at the top Lift the expansion vessel out of the appliance through the top Replace the expansion vessel and re assemble in reverse order Re pressurise and re commission the system as described in section 4 1 8 16 PRESSURE TEMPERATURE GAUGE Remove the casing...

Страница 26: ...24 1 1 INTRODUCTION 25 1 3 OPERATING INSTRUCTIONS 1 4 MINIMUM CLEARANCES 1 5 ROUTINE SERVICING 26 1 6 GENERAL INFORMATION 1 7 SAFETY 1 8 TIME CLOCKS optional CONTENTS User instructions ...

Страница 27: ...ly then turn it to the SUMMER position the burner should now light Turn off the tap Check that the room thermostat and time clock are call ing for heat Turn the heating potentiometer D to maxi mum fully clockwise Turn the selector switch summer winter to the WINTER position and the burner will light to serve the heating load Set the required temperature for the C H and D H W by rotating the potent...

Страница 28: ...ch is coloured green and yellow must be con nected to the terminal in the plug which is marked with the letter E or by the earth symbol or coloured green and yel low the wire which is coloured blue must be connected to the terminal marked with the letter N or coloured black the wire which is coloured brown must be connected to the ter minal marked with the letter L or coloured red 1 6 5 Ventilatio...

Страница 29: ...f the dial The tappets that remain at the centre of the dial will be the OFF periods N B The smallest switching time ON or OFF is 15 minutes To select Timed mode move the selector switch in the middle of the clock face to the position To select Constant mode move the selector switch in the middle of the clock face to the I position To select OFF mode move the selector switch in the mid dle of the ...

Страница 30: ...od of twelve months commencing from the date of commissioning of the boiler The Licensed Installer must complete the following informa tion Failure to do so may cause the above Warranty to beco me null and void MODEL NO __________________________________________________________________________ SERIAL NO __________________________________________________________________________ GAS TYPE ___________...

Страница 31: ... and illustrations provided in this manual have been carefully prepared but we reserve the right to make changes and improvements in our products that may affect the accuracy of the information contained in this manual ...

Страница 32: ...Cod 6272266 A 05 09 Documentation Dpt HYDRONIC SYSTEMS Australia PTY Ltd 11 Fiveways Boulevard Keysborough Victoria 3173 Telephone 1300 00 1800 Facsimile 9798 5133 www huntheat com au HUNT HEATING ...

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