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Formosa Fires Prevail Installation & Maintenance Instructions Manual

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Prevail
INSET COAL EFFECT GAS FIRE
Installation & Maintenance Instructions
Hand these instructions to the owner following installation, they
must be retained for future reference.
Model No's ANVC**MN & ANVC**SN are for use on Natural Gas (G20)
at a supply pressure of 20 mbar in G.B. / I.E.
** denotes variant of trim / fascia where applicable

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Summary of Contents for Formosa Fires Prevail

  • Page 1 Prevail INSET COAL EFFECT GAS FIRE Installation & Maintenance Instructions Hand these instructions to the owner following installation, they must be retained for future reference. Model No’s ANVC**MN & ANVC**SN are for use on Natural Gas (G20) at a supply pressure of 20 mbar in G.B. / I.E.

  • Page 2: Table Of Contents

    Removal of the control tap Removal of the pilot assembly Removal of the burner assembly (slide models) 32-33 Removal of the battery Ignitor Repacing the battery 33-34 Removing the oxy-pilot assembly Replacing the control cable 34-35 This appliance is manufactured by:- Formosa Fires.

  • Page 3: Information And Requirements Page

    SECTION 1 INFORMATION AND REQUIREMENTS APPLIANCE INFORMATION ANVC**MN & ANVC**SN Model Gas Type Main injectors (2 off) Size 235 Pilot Type S.I.T. Oxystop YA OP 9022 (MC) YA OP 9055 (SC) Max. Gross Heat Input : 6.5 kW Min. Gross Heat Input : 4.2 kW Cold Pressure : All Models - 20.0 +/-1.0 mbar...

  • Page 4: Conditions Of Installation

    INSTALLATION REQUIREMENTS CONDITIONS OF INSTALLATION It is the law that all gas appliances are installed only by a GAS SAFE registered Installer, in accordance with these installation instructions and the Gas Safety (Installation and Use) Regulations 1998 as amended. Failure to install appliances correctly could lead to prosecution.

  • Page 5: Fireplace / Surround Suitability

    FIREPLACE / SURROUND SUITABILITY The fire must only be installed on a hearth it must not be installed directly onto carpet or other combustible floor materials. The fire is suitable for fitting to non-combustible fire place surrounds and proprietary fire place surrounds with a temperature rating of at least 150 o c. If a heating appliance is fitted directly against a wall without the use of a fire surround or fire place all combustible material must be removed from behind the trim.

  • Page 6: Fire Place Opening / Catchment Space

    There must be no leakage of smoke through the structure of the chimney during or after the smoke pellet test and it is important to check inside upstairs rooms adjacent to the chimney / flue. Check the chimney pot / terminal and general condition of the brickwork or masonry.
  • Page 7 Table A - Installation Depth Requirements for a Formosa Fires Prevail being installed into a brick built chimney, requiring 12.0 litres of debris collection volume Opening Width (mm) Minimum Depth Required (mm) 330 (minimum opening width) 430 (maximum opening width) For example, if the appliance was to be fitted into a 400mm wide opening, the depth required would be 155mm.

  • Page 8: Fitting To Chair Bricks

    If in doubt about the suitability of the fire contact Formosa Fires for advice before proceeding. It is important to ensure that the pre-cast flue is in good condition and is free from extruded mortar or sealant from between the flue blocks.

  • Page 9: Hearths

    1.10 HEARTHS This appliance must only be installed on to a concrete or non-combustible hearth. The hearth material must be a minimum thickness of 13mm with the top surface at least 50mm above the floor. The hearth must be fitted symmetrically about the fire opening and have a minimum width of 760mm and a minimum projection of 300mm forwards from the fire opening.

  • Page 10: Installation Of Fire

    SECTION 2 INSTALLATION OF FIRE UNPACKING THE FIRE Carefully lift the fire out of the carton. Remove the loose item packaging carefully from the front of the appliance. Check the contents as listed :- Packing Check List 1 off Fire box / burner assembly 1 off Boxed ceramic base, 2 piece ceramic front rail 11 synthetic coals or pebbles (optional pebble pack)
  • Page 11 For manual control models proceed as follows :- Remove the burner heat shield from the front of the fire box to allow access to the burner. See figure 3 below. Fig. 3 Ensure that the hearth is protected from damage and carefully lift the fire box into the fire opening, then slide it back into position.
  • Page 12 For Slide Control Models Proceed as follows: Remove the burner heat shield from the front of the fire box to allow access to the burner. See figure 5 below. Fig. 5 Ensure that the hearth is protected from damage and carefully lift the fire box into the fire opening, then slide it back into position.
  • Page 13 Fig. 6 Unscrew the burner assembly fixing screws at either side of the firebox, and the two fixing screws at the base of the fire (See figure 7 below).Carefully pull the base of the burner forwards and downwards from the fuel-bed support panel. The burner can now be removed from the appliance.
  • Page 14 Continue for all models Whilst the fire box is still in position, decide which side the gas supply is to enter the fire from. If concealed pipe work is required plan the pipe run to enter the fire box through one of the openings in the sides of the fire box below the fuelbed support panel and connect to the isolating / inlet elbow.
  • Page 15 Seal off unused gas inlet apertures and cable fixing holes as shown PLEASE NOTE :- Formosa Fires WILL NOT BE LIABLE FOR GUARANTEE CLAIMS THAT ARE AS A DIRECT RESULT OF THE UNUSED GAS INLET APERTURES NOT BEING CORRECTLY SEALED.
  • Page 16 The preferred method of fixing which is suitable for almost all situations is the cable fixing method which is described in the following section in detail. To fit using the preferred cable method proceed as follows- Mark out and drill 4 off No 14 (6mm) holes in the back face of the fire opening in the positions shown below in figure 10 Fig.
  • Page 17 Thread a tensioning screw over each of the cables and ensure that the tensioning nut is screwed fully up against the hexagon shoulder of the tensioning screw (this provides maximum travel for the tensioning nut). Fit a screwed nipple on to each of the cables and pull hand tight up against the tensioning screw, then secure each nipple with a flat bladed screwdriver.
  • Page 18 This should not be overtightened. Move the control lever fully downwards and check that the left hand micro-switch operates the igniter and that the control valve spindle is fully depressed. Move the control lever upwards to the “off” position and check that the right hand (cut-off) micro-switch operates.

  • Page 19: Gas Tightness And Inlet Pressure (Mc Models)

    GAS TIGHTNESS AND INLET PRESSURE (MANUAL CONTROL MODELS) Remove the pressure test point screw from the inlet elbow and fit a manometer. Turn on the main gas supply and carry out a gas tightness test. Depress the control knob and turn anti-clockwise to the position marked pilot.

  • Page 20: Assembling Fuel Bed And Commissioning

    SECTION 3 ASSEMBLING FUEL BED AND COMMISSIONING ASSEMBLING THE CERAMICS AND FUEL BED NOTE : The position of the fuel-bed components are critical to the performance of the product. Therefore please ensure that the fuel-bed components are positioned as described in the following section prior to requesting a service call due to soot build up, poor flame pattern etc.
  • Page 21 Place the right hand front coal rail moulding onto the front ceramic rail support as shown below in figure 15 Fig. 15 Fit four large coals behind the ceramic front rails as shown below in figure 16 Fig. 16...
  • Page 22 Select three of the small coals and fit onto the ribs of the fuel-bed base. See figure 17 below Fig. 17 Select the remaining four small coals and arrange along the rear of the fuelbed, directly behind the third row of coals. See figure 18 below. Fig.
  • Page 23 Ensure the coals sizes are correctly positioned as shown in figure 19 below. “L” denotes “large” coals and “S” denotes small coals. If any coals are missing, please contact your retailer. Do not proceed with the installation. Fig. 19 Ensure the flame paths are un-interrupted as shown below in figure 20. If necessary, make minor adjustments to the coal positions to ensure the flame paths indicated by the arrows are available.
  • Page 24 Warning : Use only the coals supplied with the fire. When replacing the coals remove the old coals and discard them. Fit a complete set of coals of the correct type. Do not fit additional coals or any coals other than a genuine replacement set. To ensure that the release of fibres from these R.C.F (Refractory Ceramic Fibre) articles is kept to a minimum, during installation and servicing we recommend that you use a HEPA filtered vacuum to remove any dust...

  • Page 25: Assembling The Ceramics And Fuel Bed (Pebble Models)

    ASSEMBLING THE CERAMICS AND FUEL BED (PEBBLE MODELS) NOTE : The position of the fuel-bed components are critical to the performance of the product. Therefore please ensure that the fuel-bed components are positioned as described in the following section prior to requesting a service call due to soot build up, poor flame pattern etc.
  • Page 26 Place the right hand front pebble rail moulding onto the front ceramic rail support and locating pins as shown below in Fig. 23 Fig. 23 Fit pebbles A, B, C, & D behind the ceramic front rails as shown below in Fig.
  • Page 27 Select pebbles E, F & G and fit onto the ribs of the fuel-bed base. See fig. 25 below. Fig. 25 Select pebbles H, I, J & K and arrange along the rear of the fuelbed, directly behind the third row of coals. See fig. 26 below. Fig.
  • Page 28 Warning : Use only the pebbles supplied with the fire. When replacing the pebbles remove the old pebbles and discard them. Fit a complete set of pebbles of the correct type. Do not fit additional pebbles or any pebbles other than a genuine replacement set. To ensure that the release of fibres from these R.C.F (Refractory Ceramic Fibre) articles is kept to a minimum, during installation and servicing we recommend that you use a HEPA filtered vacuum to remove any dust...

  • Page 29: Lighting The Appliance (Mc Models)

    LIGHTING THE APPLIANCE (Manual Control Models) Turn on the gas isolation tap. Depress the control knob and turn anti-clockwise to the position marked pilot. Hold in the control knob for a few seconds to purge the pipe work. Continue to hold-in the control knob and press the igniter button. If the burner does not light, continue to press the igniter button until ignition occurs.

  • Page 30: Checking For Clearance Of Combustion

    The gas control can be moved from the High to Low position to give the desired heat output. To turn the fire off, FULLY raise the control lever to the OFF position. WARNING : If the fire goes out for any reason or is turned off and it isnecessary to re-light the fire it is important to allow the fire to cool for 3 minutes before attempting to re-light it.

  • Page 31: Maintenance

    Servicing should be carried out annually by a competent person such as a registered engineer and must include an Oxy-pilot change. This is a condition of the Formosa Fires guarantee scheme. The service should include visually checking the chimney and fire opening for accumulations of debris and a smoke test to check for a positive up-draught in the chimney.

  • Page 32: Removal Of The Burner Assembly (Manual Models)

    Removing the Control Tap from the fire. 4.3.1 Remove the burner assembly as in section 4.1. 4.3.2 Pull the control knob off the control tap spindle. 4.3.3 Loosen and remove the three gas pipe retaining nuts from the control tap and release the ends of the gas pipes from the control tap body. Loosen and remove the thermocouple securing nut from the end of the control tap.

  • Page 33: Removal Of The Battery Ignitor

    4.5.3 Isolate the gas supply and remove the inlet pipe from the appliance inlet elbow. To allow burner removal, the control lever operating cable must be removed. The control lever operating cable can be seen running across the base of the fire, below the burner. To release the cable, unscrew the cable securing screw located in the centre of the aluminium operating arm and pull the cable out from its fixing hole.

  • Page 34: Removing The Oxy-Pilot Assembly

    4.7.2 Replace in the reverse order using a 1.5V AA Alkaline Battery. Removing the Oxy-Pilot Assembly Note: Because this appliance is fitted with an atmosphere sensing ‘Oxy- Pilot’ it is not possible to replace the thermocouple separately, because the thermocouple position is factory set to a tight tolerance. Any replacement of parts on the pilot requires a complete new pilot assembly.
  • Page 35 4.9.2 Hold the hexagonal control lever cable locking bush with a spanner and unscrew the locking screw using a 2mm allen key to release the cable from the control lever. The control cable can now be removed from the cable guide tubes. 4.9.3 To fit the replacement cable, thread the end of the new cable into the long length of p.t.f.e.
  • Page 36 Replacement of parts must be carried out by a competent person such as a registered gas installer. The part numbers of the replaceable parts are as follows, these are available from Formosa Fires, whose details may be found overpage. Complete coal ceramic set (base front rails and coals)
  • Page 37 Due to our policy of continual improvement and development the exact accuracy of illustrations and descriptions contained in this book cannot be guaranteed Part No. B-177160 Issue 1...

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