VOKERA COMPACT Installation & Servicing Instructions Manual
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VOKERA COMPACT Installation & Servicing Instructions Manual

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Compact
Installation
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Instructions
THESE INSTRUCTIONS
TO BE RETAINED
BY USER

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Summary of Contents for VOKERA COMPACT

  • Page 1 Compact Installation & Servicing Instructions THESE INSTRUCTIONS TO BE RETAINED BY USER...

  • Page 2: Table Of Contents

    Commissioning Page Contents Gas supply installation Design principles and operating sequence Page The heating system Principle components Initial filling of the system Central heating mode Initial flushing Hot water mode Filling the hot water system Safety devices Pre-operation checks Frost protection Initial lighting Checking burner pressures Technical data...
  • Page 3 Compact can also be used with the clock. Vokera twin flue system. Compact is produced as a room sealed appliance, suitable This appliance is designed primarily for use with sealed for wall mounting applications only.
  • Page 4 7 ºC, should the temperature continue to drop the burner will light until the primary circuit temperature exceeds 30 ºC. cold return flow outlet inlet Fig. 2 Compact...
  • Page 5 SECTION 2 TECHNICAL DATA Compact Compact 2.1 Central heating Heat input (kW) 26.3 31.0 Heat output (maximum) kW 24.0 28.0 Heat output (minimum) kW 10.5 Minimum working pressure 0,5 bar 0,5 bar Maximum working pressure 3.0 bar 3.0 bar Minimum flow rate...
  • Page 6 Horizontally from a terminal on the same wall 300 mm From a structure to the side of the vertical terminal 300 mm From the top of the vertical terminal to the roof flashing As determined by the fixed collar of the vertical terminal Fig. 4 Compact...
  • Page 7 Detailed recommendations are given in BS 5449 cupboard design including airing cupboard Part 1 and BS 6798. The following notes are for installations are given in BS 6798. This appliance general guidance only. is not suitable for external installation. Compact...
  • Page 8 BS 1363 is acceptable. SHOWERS flow/return double check If the appliance is intended for use with a shower, pipe valve supply pipe the shower must be thermostatically controlled and be suitable for use with a combination boiler. Fig. 5 Compact...
  • Page 9 7) ‘Guide for Gas Installations in Timber Frame Buildings’. 3.11 INHIBITORS Vokera recommend that a neutral inhibitor is used to protect the heating system from the effects of corrosion and/or electrolytic action. The inhibitor must be administered in strict accordance with the manufacturers* instructions.
  • Page 10 3A.11 INHIBITORS Vokera recommend that a neutral inhibitor is 3A.6.5 EXPANSION VESSEL used to protect the heating system from the The appliance has an integral expansion vessel effects of corrosion and/or electrolytic action.The...
  • Page 11 Once the bracket has been secured to the wall, The top flue outlet permits both horizontal and mount the appliance onto the bracket. vertical flue applications to be considered, alternatively, the Vokera twin flue system can be utilised if longer flue runs are required. Compact...
  • Page 12 (100 mm) pipe by 7.5 mm (fig. 8B). Total flue length Restrictor required Ensure any burrs are filed or removed and that Compact 24 Compact 28 any seals are located properly before assembly. Less than 1 metre...

  • Page 13: Concentric Vertical Flue

    (see You must ensure that the entire flue system is table below). properly supported and connected. Compact 24 Total flue length Restrictor required 300 mm Less than 1.5 metre 42 mm diameter min.
  • Page 14 Less than 12.5 + 12.5 49 mm diameter Less than 14 + 14 Not required The Vokera twin flue system enables greater flue flue outlet distances to be achieved (see section 2.8) than air inlet that of the standard concentric flue system. It can...

  • Page 15: Connecting The Gas And Water

    It will be necessary to calculate the diameter of Push-fit the twin flue pipes onto the concentric to the gas pipe to ensure the appliance has an twin converter ensuring that the exhaust pipe adequate supply of gas. Compact...

  • Page 16: Flow And Return

    THAT OF THE APPLIANCE. The supply cable from the isolator to the appliance must be 3-core flexible sized 0.75mm to BS 6500. Wiring to the appliance must be rated for operation in contact with surfaces up to 90 ºC. Fig. 14 Compact...

  • Page 17: Connecting The Mains (230V) Input

    EARTH wire should the cable become taut. The securing screw on the cable anchorage should now be tightened. This must be done before the control fascia is re-fitted in the upright position. The terminal strip cover can now be re- fitted. Compact...

  • Page 18: Gas Supply Installation

    Ensure all gas service valves from the meter to 7.6 for the correct adjustment procedure. the appliance are open and the supply pipe has been properly purged. Gas pressure adjustment protective cover Maximum pressure Minimum pressure ad- adjustment screw (a) justment screw (b) Fig. 15 Compact...

  • Page 19: Final Flushing Of The Heating System

    *Both Sentinel and Fernox manufacture products acceptable temperature, as higher temperatures that have proved suitable for use with Vokera can be realised by reducing the flow rate at the appliances. Vokera Ltd. cannot comment on the individual hot water outlets.

  • Page 20: Routine Annual Servicing

    It is the law that any servicing work is carried out thorough flushing with clean water has taken by competent person such as a Vokera engineer, place. an approved service agent, British Gas, or other COMPONENT REMOVAL PROCEDURE CORGI registered personnel.

  • Page 21: Automatic Air Release Valve

    Replace in the reverse order. secondary thermistor Fig. 21 Compact...

  • Page 22: Integral Time Switch

    Replace in the reverse order. Check and adjust burner pressure settings. WARNING, A GAS SOUND- NESS CHECK MUST BE CARRIED OUT. Fig. 24 Compact...

  • Page 23: Flue Fan

    6.21 EXPANSION VESSEL Due to the compact design of this appliance, removal and/or replacement of the expansion vessel requires the appliance to be removed from the wall, if this is deemed impractical, an external expansion vessel may be fitted to the return pipe as close to the appliance as possible.

  • Page 24: Frost Protection Mode

    DHW gas pressure 55 ºC. set the maximum heating gas pressure HEATING MODE set the minimum heating gas pressure. With all controls calling for heat, the pump and fan will run. When the fan runs it proves the air Compact...

  • Page 25: Setting The Maximum Dhw Gas Pressure

    Locate and remove combustion test point screw, Observe the manometer, the reading for (fig. 1) insert flue gas analyser probe into com- Compact 24 should be 10.1 mbar, for Compact bustion test point, remove mode selector switch 28 the reading should be 10.2 mbar.

  • Page 26: Possible Installation Faults

    7.11.4 REVERSED POLARITY OR SUPPLY FAULT Ensure the appliance is protected – externally Repeat the above tests at the appliance isolator, – by a 3 amp fuse. if testing reveals correct polarity and/or supply at Compact...
  • Page 27 BETWEEN THE ROOM FLOW SWITCH OR THERMOSTAT INPUT CHECK FLUE GAS TUBE CHECK WIRING OR CONNECTIONS CHECK WIRING AND BETWEEN TERMINAL CONNECTIONS OR CHECK IDRAULIC RESTART THE STRIP AND CONTROL REPLACE WIRING WATER PRESSURE CIRCUIT TEST BOARD OR CONNECTIONS SWITCH Compact...
  • Page 28 THE AIR DP > REPLACE THE 11 mmCH2O MAINS CONTROL BOARD ON E.V.G. CHECK REPLACE AIR FLOW SWITCH CHECK WIRING CHECK WIRING AND CHECK THE FAN CONNECTIONS OR AND/OR FLUE GAS CONNECTIONS EVG OK HIGH LIMIT THERMOSTAT TUBE REPLACE EVG CHECK GAS Compact...
  • Page 29 THERE 24 Vdc BETWEEN TERMINALS CN8.4 & CN8.5 ON PCB THERE 0 VCC BETWEEN TERMINALS CN9.1 & CN9.2 ON PCB CHECK WIRING AND CHECK WIRING AND CONNECTIONS, WATER CONNECTIONS OR REPLACE PRESSURE SWITCH AND AIR PRESSURE SWITCH CONTROL BOARD HYDRAULIC CIRCUIT Compact...
  • Page 30 CN9.4 ON PCB IS < 1.2 Vdc D.H.W. TEMPERATURE >60 ˚C SWITCH DHW THERMOSTAT AT MIN. D.H.W. NTC WAIT D.H.W. TEMPERATURE BURNER AND FAN >40 ˚C SWITCH OFF REPLACE CONTROL BOARD D.H.W. TEMPERATURE >40 ˚C REPLACE D.H.W. NTC REPLACE CONTROL BOARD Compact...
  • Page 31 BURNER AND FAN SWITCH ON WAIT D.H.W. TURN OFF TAP TEMPERATURE < 60 ˚C D.H.W. TEMPERATURE >60 ˚C BURNER, FAN AND PUMP SWITCH REPLACE CONTROL BOARD DHW FLOW SWITCH CHECK WIRING AND CONNECTION OR REPLACE DHW CONTROL BOARD FLOW SWITCH Compact...
  • Page 32 >80 ˚C CN9.4 ON PCB IS < 1.2 Vdc SWITCH CH THERMOSTAT AT MIN. IS THE D.H.W. RESISTENCE OF TEMPERATURE MODULATOR COIL >80 ˚C ABOUT 70/80 REPLACE CONTROL BOARD C.H. NTC REPLACE REPLACE REPLACE MODULATOR COIL C.H. NTC CONTROL BOARD Compact...
  • Page 33 WAIT WATER FLOW TEMPERATURE < 80 ˚C OPEN THE TIMER WATER FLOW CONTACT TEMPERATURE >80 ˚C BURNER AND FAN SWITCH C.H. NTC REPLACE CONTROL BOARD REPLACE CONTROL BOARD WAIT 30 SECS. REPLACE C.H. NTC PUMP SWITCH REPLACE CONTROL BOARD Compact...
  • Page 34 29 & 29A. NOTE Guidance on the recommended practice for the Fig. 29 installation of external controls, can be found in CHeSS – HC1/HC2 (www.energy- efficiency.gov.uk). Fig. 29A Compact...
  • Page 35 SP/SE E. Spark\Sense electrode TRF1 Trasformer Gas valve solenoids Ignition trasformer B.C.B. Burner control board ACF01X Ignition control board CP08X Boiler control board Led OK (green) Setting timer Led alarm (red) Natural gas or L.P.G. selector Combustion test (blink orange) Compact...
  • Page 36 FUNCTIONAL DIAGRAM NOTE: L-N-E CONNECTION IS ADVISABLE Fig. 31 Compact...
  • Page 37 Case 10023822 10023883 Plastic Trade Mark Label 1979 1979 Converter 10023935 10023935 Timer 10023938 10023938 3 A fuse 3478 3478 Edge clip 5128 5128 Transformer 10021272 10021272 Wiring harnes 10023939 10023939 Wiring harnes 10024067 10024067 Wiring harnes 10023840 10023840 Compact...
  • Page 38 Pipe 10020612 10023949 Pipe 10020898 10020898 Washer 5026 5026 NTC sensor 8484 8484 O ring 6898 6898 Clip 2223 2223 Clip 2165 2165 Washer 10022726 10022726 Clip 2222 2222 Connection 2217 2217 Brass nut 1823 1823 Ogive 1824 1824 Compact...
  • Page 39 10022000 10023947 Heat exchanger 10021419 10023661 Pipe 10022002 10023948 Automatic air vent bottle 0439 0439 Washer 2226 2226 Washer 5026 5026 Washer 5041 5041 NTC senspr 8484 8484 High limit thermostat 2258 2258 Clip 2223 2223 Clip 2165 2165 Compact...
  • Page 40 10023996 10023996 Gas valve 10021021 10021021 Gas cock 10020897 10020897 Cover assembly 10021570 10023928 Glass 10021558 10021558 Air box hole cap 8084 10023805 Burner flange 10023997 2233 2233 Washer 5023 5023 Silicone tube 1457 1457 LPG conversion kit 01005262 Compact...
  • Page 41 Lateral insulating panel 2231 2231 Front insulating panel 2232 10023910 10020793 10023907 Connection 2237 2237 Fumes testing connection pipe 10020627 10020627 Pressure diff. switch 8195 10023908 Stop clip 10020626 10020626 Screw 5080 5080 Silicone tube 1457 1457 Wiring harnes 10024067 10024067 Compact...

  • Page 42: Related Documents

    Observe the manometer, the reading for Compact maximum rated input of this and any other appliances 24 should be 5.1 mbar, for Compact 28 the that it serves. reading should be 4.8 mbar.
  • Page 43 25 mm proud of the wall-mounting bracket. Insert the flue restrictor ring into the appliance flue outlet. The appliance can now be mounted to the wall Fig. 32 bracket. M a x Min 200 Fig. 34 Fig. 33 Fig. 34A Compact...
  • Page 44 Vokèra Ltd. Floor, Catherine House, Boundary Way, Hemel Hempstead, Herts, HP2 7RP Email: enquiries@vokera.co.uk Web: www.vokera.co.uk General Enquiries - Tel: 01442 281400 Fax: 01442 281460 Technical Advice - Tel: 0141 945 6810 Spare Parts - Tel: 0141 945 68”0 After Sales Service - Tel: 0870 333 0220 Vokèra Ireland...

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