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Summary of Contents for Metropolis DGT 25 BF

Page 1: ...lation and servicing instructions ENG IT ES ENSURE THAT THESE INSTRUCTIONS ARE LEFT FOR THE USER AFTER COMPLETION OF THE BENCHMARK SECTION Please read the Important Notice within this guide regarding...

Page 2: ...e recommended Avoid direct contact with sharp edges Avoid contact with any hot surfaces NOTICE Please be aware that due to the wet testing of the appliance there may some residual water in the hydraul...

Page 3: ......

Page 4: ...dards of installation and commissioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimi se safety efficiency and performance Benchmark is managed and p...

Page 5: ...the Benchmark Checklist in the use and maintenance section of this manual been completed IPX5D Important Information IT IS A STATUTORY REQUIREMENT THAT ALL GAS APPLIANCES ARE INSTALLED BY COMPETENT P...

Page 6: ...y water systems and is supplied fully assembled and equipped with complete valve packs The boiler can be used with a 24V room thermostat class II according to EN 60730 1 This booklet provides instruct...

Page 7: ...perature C 100 125 Smokes flow gr s 16 16 Losses after shutdown to 50 C W 73 Category II2H3 Type B22P 52P C12 32 42 52 82 Electrical supply 230V 50 hz fused at 3 A Internal fuse Line F1 6AT Weight kg...

Page 8: ...Combustion chamber 6 Gas valve 7 Water pressure valve 8 Circulator with air release vent 10 Hydrometer 11 Expansion vessel 12 D H W flow meter 13 By pass 14 D H W filter 15 Boiler discharge 16 3 BAR...

Page 9: ...s that set the burner output is reduced When this set temperature is reached the burner extinguishes and the fan stops The pump continues to run for 30 seconds to prevent residual heat build up in the...

Page 10: ...ided it is modified accordingly Where installation will be in an unusual location special procedures may be necessary BS6798 gives detailed guidance on this aspect 2 3 FLUE TERMINAL POSITION Detailed...

Page 11: ...W flow rate but does not exceed the maximum D H W pressure 1 3 point Where mains pressure exceed 6 bar a pressure reducing valve must be fitted in the D H W inlet 2 8 1 Treatment of water circulating...

Page 12: ...12 ENG IT ES TYPICAL SYSTEM DESIGN NOTE A drain cock should be installed at the lowest point of the heating circuit and beneath the appliance Fig 6 Fig 7 ALTERNATIVE METHODS OF FILLING A SEALED SYSTEM...

Page 13: ...rim flushing type the outlets are shrouded and it is impossible to attach a temporary hand held spray no anti syphonage device is necessary 2 11 FILLING THE WATER SYSTEM Open the C H flow and C H ret...

Page 14: ...duct is longer than 1 metre it is advisa ble to insulate the duct in order to avoid the formation of dew on the outside of the pipe when the weather is particularly cold With ducts with discharge posi...

Page 15: ...horizontal pipe 80 x 0 20 1 40 7 meter horizontal pipe 80 x 0 30 2 10 No 2 90 elbows 80 x 0 35 0 70 No 2 90 elbows 80 x 0 40 0 80 No 1 wall terminal 80 0 15 0 50 Total head loss 2 25 3 40 5 65 mm H2O...

Page 16: ...he boiler casing remove the two securing screws and tilt the control panel Connect the thermostat to the 6 pole ter minal board as indicated in the boiler elec trical diagram see diagram 2 19 after ha...

Page 17: ...SSO RED FLM VERDE GREEN ARANCIO ORANGE VCC GND OUT ROSSO RED ROSSO RED ROSSO RED 3 3 VDC 24 VDC 3 3 VDC 3 3 VDC 24 VDC 3 3 VDC 24 VDC 17 VDC 12 VDC 24 VDC R59 Fig 11 KEY F Fuse 1 6 AT TRA Ignition tra...

Page 18: ...T is only available if a resettable anomaly is signalled D H W SET Press the key to display the D H W temperature value set HEATING SET Press the key to display the heating temperature value set value...

Page 19: ...03 17 Pump heating activation delay 0 99 10 sec 1 01 18 Re ignition delay 0 10 Min 1 03 19 Modulation D H W flowmeter Disabled 01 1 Enabled 29 Anti legionella only D H W tank Disabled C 1 50 80 PARAME...

Page 20: ...nition failure with consequent activation of block can be due to Lack of gas The ignition electrode persists in dischar ging for max 10 seconds If the burner does not ignite the anomaly is signalled T...

Page 21: ...NTILATORE CAMERA STAGNA Fig 14 SEALED CHAMBER FAN PRESSURE SWITCH A B C RIFERIMENTO POSIZIONE BY PASS D Fig 15 KEY A By pass on B By pass off C Water pressure valve D Automatic air vent E Drain vent R...

Page 22: ...ws fig 18 Connect the column or a manometer to the intake down stream of the gas valve and disconnect the valve VENT pressure test point tube 5 fig 16 Remove the cap 1 from the modulator Connect the c...

Page 23: ...manifold unit Ideally use a vacuum clea ner and a soft brush so as to remove any dust particles that may have accumulated take care not to damage the insulation Clean the heat exchanger removing any...

Page 24: ...05 FLAME LOCKOUT ALARM 06 fig 20 a If the flame control has not detected the presence of the flame after a complete ignition sequence or for any other rea son the card cannot see the flame the boiler...

Page 25: ...general once a year should be adequate It is the law that a competent person such as a Gas Safe Register registered engineer must carry out any service work 4 7 1 Combustion Check Incorporated into t...

Page 26: ...ot affect the customer s statutory rights If yes and if required by the manufacturer has a water scale reducer been fitted CONDENSING BOILERS ONLY The condensate drain has been installed in accordance...

Page 27: ...er No Comments Signature Date Engineer Name Company Name Telephone No Gas Safe Register No Comments Signature Date Engineer Name Company Name Telephone No Gas Safe Register No Comments Signature Date...

Page 28: ...e the position of the sensing pipe and disconnect 6 REPLACEMENT OF PARTS If an electrical fault occurs on the appliance the preliminary electrical system checks must be carried out first When any serv...

Page 29: ...iler cover see 4 3 Close the flow and return isolation valves Drain the boiler using the fitted drain vent see fig 15 Disconnect the electrical connections to the pump Remove the four fixing screws Re...

Page 30: ...Water heat exchanger 014 6231362 NTC sensor 015 6318600 Sealed chamber front panel 016 6225636 Fan 017 6317900 Combustion chamber front panel 018 6318700 Combustion chamber side insulat 019 6264841 C...

Page 31: ...valve operation 062 6319630 Flowmeter 063 6147231 Straight fitting 1 2 15 064 6245000 Ball cock 3 4 x22 065 6245001 Ball cock 1 2 x15 066 6063601 Gas cock 1 2 068 2030227 Gasket 12x18x2 069 6226457 O...

Page 32: ...4258 Gas Water heat exchanger 014 6231362 NTC sensor 015 6318600 Sealed chamber front panel 016 6225636 Fan 017 6317900 Combustion chamber front panel 018 6318700 Combustion chamber side insulat 019 6...

Page 33: ...9630 Flowmeter 063 6147231 Straight fitting 1 2 15 064 6245000 Ball cock 3 4 x22 065 6245001 Ball cock 1 2 x15 066 6063601 Gas cock 1 2 068 2030227 Gasket 12x18x2 069 6226457 O ring 12bis diam 16x1 90...

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