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Gas supply adjustments (Commissioning Part II) 7

Instructions for Installation and Servicing turboMAX pro R3

21

7 Gas supply adjustments

7.1 Gas inlet working pressure

To check the gas inlet working pressure:
• Lower the front panel of the boiler.
• Lower the control panel.
• Slacken the sealing screw (1) located at measuring

point ”P.IN”.

• Attach U-gauge to the inlet test point on the gas valve

(2).

• Ensure that the gas service valve is open.
• Set the DHW temperature control to maximum and

fire the boiler at full rate by opening a hot water tap.

• Ensure that the hot water outlet temperature 

adjustment control is set to maximum.

• Check that the U-gauge is reading in the range of 18 to

20 mbar. (If the pressure is not within this range this
should be investigated before continuing with the
commissioning preocedure.
(Lower pressures than this range are indicative of an
incorrectly sized or partially blocked gas supply.)

• Turn off the hot tap.
• Remove U-gauge, tighten test point sealing screw (1).
• Test for soundness.
• Record appliance working gas inlet pressure (mbar) in

the Benchmark gas boiler commissioning checklist.

Fig. 7.1: Gas inlet working pressure

1

1

2

7.2 Main burner pressure

The burner pressure on this appliance has been factory
set and does not require adjustment. To check the main
burner pressure connect the U-Gauge as follows depen-
ding on the gas type.
• Remove front case and combustion chamber cover.

Note!

All measurements and adjustments to the gas
valve must be done with the combustion cham-
ber cover removed.

For natural gas appliances:

• Slacken the sealing screw (1) at test point on the gas

valve and attach one arm of a U-gauge (2) to the test
point. 

For LPG appliances:

• Slacken the sealing screw (1a) at test point on the bur-

ner inlet gas pipe and attach one arm of a U-gauge
(2a) to the test point.

Fig. 7.2

1

1a

2

2a

Connection for LPG

Connection for Natural gas

833792_41GB_012005.qxd  09.03.2005 16:47 Uhr  Seite 21

Содержание turboMAX pro 24/2 E

Страница 1: ...he installer 24 2 E 28 2 E GB Instructions for Installation and Servicing turboMAX pro Wall hung room sealed fan assisted combination and system boilers 833792_41GB_012005 qxd 09 03 2005 16 47 Uhr Sei...

Страница 2: ...oving boiler casing 14 5 7 Gas supply 14 5 8 Cold water mains inlet and hot water outlet 15 5 9 Central heating flow and return pipework 15 5 10 Connect the flue system to the boiler 16 5 11 Electrica...

Страница 3: ...ith unit turboMAX pro 8 7 6 1 2 5 4 I 0 3 9 10 Item Quantity Description 1 1 Boiler 2 1 Flue restriction ring 3 1 Cold water inlet valve 4 3 Flow and return service value gas service valve 5 5 Copper...

Страница 4: ...ns The boiler contains a domestic hot water heat exchan ger The temperature in the heat exchanger is limited by the boiler control system and it is not necessary to install a scale reducer on the cold...

Страница 5: ...low rate 0 15 0 15 bar Maximum inlet water pressure 10 10 bar Inlet gas working pressure required natural gas 20 20 mbar Gas supply G20 Gross CV s t 37 8 37 8 MJ m3 Gas burner pressure max rate natura...

Страница 6: ...low switch 21 Main on off control 22 Pressure gauge 23 Indicator lights 24 Expansion vessel 25 Expansion vessel charging valve 26 Circulating pump 27 Automatic air vent 28 Ignition electrode 29 Temper...

Страница 7: ...ler The boiler may be installed in any room although particular attention is drawn to the requirements of BS7671 IEE Regulations and in Scotland the electrical provisions of the Building Standards Sco...

Страница 8: ...s Fig 4 4 Art No 303 609 70 1103 70 15 800 Instructions for Installation and Servicing turboMAX pro R3 8 4 4 1 Top outlet flue system 100 mm outside diameter The top outlet horizontal flue system Art...

Страница 9: ...ace in which the boiler is installed 4 6 Cupboard or compartment ventilation The boilers are very high efficiency appliances As a con sequence the heat loss from the appliance casing during operation...

Страница 10: ...nnection a sealed system filler pump with break tank must be used The heating system will not be filled automatically from the domestic hot water side Alternative methods of filling sealed systems are...

Страница 11: ...r is suitable for use in systems with ther mostatic radiator valves and no additional by pass is required 4 8 8 Venting The boiler is fitted with an automatic air vent Additional provision should be m...

Страница 12: ...ion Sequence Instructions for Installation and Servicing turboMAX pro R3 12 5 Boiler Installation Sequence 5 1 General Preparation of boiler location Clearances required Mount the boiler on a flat and...

Страница 13: ...k the centre of the selected air flue duct and its cir cumference e g by drilling through the template For installation of a rear exit outlet please refer to the installation instructions of the rear...

Страница 14: ...ystem refer to separate air flue duct installation instructions 5 5 Fitting the boiler Lift the boiler 3 up to the wall so that it is slightly above the hanging bracket 1 Note Lift the boiler from eit...

Страница 15: ...ework and radiators must be thoroughly flushed to remove any installation debris Connect the central heating flow 4 and return 1 ser vice valves to the appliance 6 and 3 with the washers provided 2 an...

Страница 16: ...hed shuttered socket both complying to the requirements of BS1363 Alternatively connection may be made via a 3 A fused double pole isolator having a contact separation of at least 3 mm in all poles an...

Страница 17: ...rd layout Socket X2 for internal unit components Socket X4 for minority reversing Socket X7 for accessory box connection Socket X8 for VRC VC connection Room thermostat 230 V connections 3 4 and 5 Mai...

Страница 18: ...N E 2 3 4 N E 1 L L 3 5 6 4 N E 2 3 4 N E 1 L L 3 4 L N 2 3 4 L N 3 4 1 L N 2 3 4 L N 3 4 1 A B D L N L N C N E 3 1 2 4 3 4 5 E 1 2 4 4 3 2 L 1 N 3 6 5 mains supply L N E E Landis Staefa RWB7 RWB30 5...

Страница 19: ...s have been fitted Circulating pump The boiler incorporates a built in circulating pump that is fully prewired no additional wiring is necessary The pump incorporates an automatic overrun period after...

Страница 20: ...6 4 Filling the heating system Proceed as follows to fill the system Open all radiator valves on the system Fill the system via the seperate filling point Open the valve slowly and fill the unit with...

Страница 21: ...incorrectly sized or partially blocked gas supply Turn off the hot tap Remove U gauge tighten test point sealing screw 1 Test for soundness Record appliance working gas inlet pressure mbar in the Ben...

Страница 22: ...radiator tempera ture control to its highest setting Ensure that any thermostatic radiator valves are open and set to high Wait for approx 2 minutes until the burner pressure switches to full load Th...

Страница 23: ...rner jet mark2 for G30 3 8 3 8 5 0 6 7 8 7 10 8 13 1 15 6 18 3 21 2 24 2 7 072 for G31 5 3 5 3 6 9 9 3 11 9 14 8 18 0 21 4 25 1 29 0 33 1 Gas Rate turboMAX pro 24 2 E Delivered gas Output kW 8 9 10 0...

Страница 24: ...Secure cover with retaining clamps 7 6 Fit boiler casing Carefully push case 1 onto the boiler such that the locating points either side at the top of the boiler engage Push the casing onto the secur...

Страница 25: ...at the burner The ignition indicator 5 will illuminate As soon as the burner has ignited and the flame has been sensed the flame indicator 6 will illuminate I 0 By illuminating in this sequence the i...

Страница 26: ...temporary filling connection Refit the boiler casing Attach the bottom cover to the boiler by securing with the four screws provided It may be necessary to apapt the bottom cover by removing the easy...

Страница 27: ...tance to earth with a multimeter after any service work and after exchanging any electrical component Note The boiler is fitted with a combustion analysis test point A suitable combustion analyser can...

Страница 28: ...rse order Check central heating expansion vessel Note It is not necessary to carry out this check every year a check every three years should be sufficient Release the system water pressure from the b...

Страница 29: ...minate in sequence indicating the operational status of the boiler Should a fault develop in the boiler the indicators may flash high lighting the possible fault e g Power on indicator green Illuminat...

Страница 30: ...Replace LCD display Yes No Repair external fault Is the continuity across fuse F1 Go to sheet B Does ON OFF knob operate switch on electronic board Boiler ON OFF control defective change electronic bo...

Страница 31: ...k red and approx 17 VDC secondary blue brown Check replace pump Replace fuse F1 If fan commences operation exchange gas valve After approx 20 secs Does fuse F1 blow Produce central heating demand Does...

Страница 32: ...for heat No Is 230 VAC present across terminals 4 and 5 No External fault Check all external controls are calling for heat replace or repair as necessary see also note 1 sheet A Yes Yes Disconnect bui...

Страница 33: ...VAC present across fan terminals Replace electronic board Yes No No Yes No Yes Yes Check replace fan Does the boiler commence ignition Check air flue gas system is correctly fitted and not obstructed...

Страница 34: ...y and Does burner light No Replace electronic board Yes Is burner indicator illuminated No Check flame rectification lead and electrode Is burner indicator illuminated No Yes Does burner shut down aft...

Страница 35: ...ves are open No No No Replace electronic board No Check operation of boiler in DHW mode does flame increase in size to full rate Yes Check partial load setting No No Go to sheet G Yes Check connection...

Страница 36: ...ressure is sufficient and that cold water inlet filter is clear Check cold water inlet is fully open and adjustment is at maximum flow rate Check Clear impeller in Aquasensor replace if necessary Chec...

Страница 37: ...Hot water demand indicator Central heating demand indicator Fan operation indicator Ignition indicator Flame indicator Power on indicator green main switchboard ignition electrodes Legend b blue br b...

Страница 38: ...NTC earth Ionisation electrode Coding resistor NTC flow NTC return Lifting magnet 24 23 1 12 13 14 15 16 17 18 19 20 21 22 2 3 4 5 6 7 8 9 10 11 Fan unit Ignition electrodes Gas valve Diverter valve...

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Страница 44: ...833792_42 GB R3 03 2005 Subject to alteration 833792_41GB_012005 qxd 09 03 2005 16 47 Uhr Seite 44...

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