7. GAS SUPPLY CONNECTIONA nut and olive are provided for an 8mm pipe inlet connection to the ‘T’ connector atthe bottom front of the appliance. The ‘T’ connector can be rotated to allow aconnection from any direction. The ‘T’ connector includes a valve for isolating the gassupply and a pressure test point.The supply pipe must be rigid material. Flexible pipe must not be used.Concealed supply pipe connection.If a concealed connection from inside the fireplace is required then, before theappliance is fitted into the fireplace it will be necessary to extend the supply line sothat it will project through the hole in the back of the hotbox and run to the ‘T’connector at the front. The pipe run from the supply line up to the rear opening in thehotbox must be kept away from the area which will be taken by the hotbox when it isinstalled. Note that the centre of the appliance inlet ‘T’ connector is 25mm above thefireplace floor. The inlet ‘T’ connector should be fitted to the supply pipe at this stage.8. PREPARING APPLIANCE FOR INSTALLATION1. Remove the two screws to the side of the burner unit.2. Detach the burner unit from the hotbox by lifting clear.3. It is important that the grommet supplied in the loose parts pack is fitted tothe hole in the rear of the hotbox.4. For concealed connection only: Pierce the grommet to allow the pipe to passthrough it. The grommet should envelop the pipe. If the hole is larger than the pipe,seal it with tape. Do not pierce the grommet unlessthe supply pipe is to pass through it.5. The appliance is supplied with two fireback spacers.Do not fit the fireback spacers if the fire is to beinstalled into a precast or clay flue block system asin section 3.10.3. These should extend backwards toensure sufficient clearance from the back of the fireplace.Remove the label and retaining screws from the rearsides of the hotbox. Position the fireback spacers asshown in figure 10. Secure the fireback spacers usingthe screws removed previously, and the two suppliedwith the fire.6. This appliance is supplied with a flue restrictor for usewhere the flue draught is excessive. Generally werecommend the restrictor is NOT fitted where a precastflue, metal flue box or a flue liner is used, however,certain flues may work sufficiently to warrant its use. There may however, becircumstances where fitting the restrictor causes the fire to fail the spillage test. Insuch cases the restrictor will have to be removed. After removal conduct the spillagePage 20© Baxi Heating U.K. Limited 2009.INSTALLER GUIDEFigure 10.