3the appliance and should not be less than (4in) internaldiameter.7. In the event of an extractor fan being fitted in the vicinity ofthe range, compensatory ventilation will be required tosatisfy the demands of the fan without influencingcombustion efficiency or chimney flue condition.Direct Vent - Models GC and GEThe location chosen for the appliance must permit theprovision of a satisfactory flue termination.The location must also provide adequate space for servicingand air circulation around the range.Should the installation of the appliance be in an unusuallocation or restricted space, special procedures may benecessary and the following current codes give detailed guidelines on this aspects:U.S.: The National Fuel Gas Code ANSI Z223.1-latest edition.Canada: The CAN/CGA B -149 installation codes.The following notes are intended to give general guidance.1. The range must be installed so that the flue terminal isexposed to the external air and terminal clearances complywith:In U.S.: The National Fuel Gas Codes ANSI Z223 1-latestedition Section 7.7.In Canada: CAN/CGA-B149 installation code.2. Termination should be on a clear expanse of wall, theterminal being preferably not less than 355mm (14in) awayfrom a corner, recess of projection.3. A hole must be cut through an outside wall as indicated inFig. 6 with the hole rising from inside to outside faceof wall.DO NOT install the terminal:-(a) Within 300mm (12in) measured vertically, from thebottom of an openable window, air vent or any otherventilating opening.(b) Within 300mm (12in) above adjacent ground level.(c) Within 600mm (24in) of any surface facing theterminal.(d) Within 355mm (14in) (U.S.) or300mm (12in) (Canada) below eaves or balcony.The direct vent terminal must be protected by a terminalprotective guard installed over the terminal to preventunauthorised contact with hot terminal surfaces.See Fig. 8.4. All jointing faces providing primary air and flue exhaustpaths, must be sealed in an airtight fashion, with particularemphasis on the following locations:(a) Air intake tube joints to be sealed with silicone adhesiveprovided.(b) Combustion chamber top sealed with a fire-cementedgasket to the outer barrel.(c) Fire cement joints between underside contact faces ofhotplates and simmering plate with cement provided.(d) Gasket between flue intake/exhaust manifold.Gasket provided.The air inlet/products outlet direct vent, and the terminal of theappliance must not be less than 300mm (12in) to combustiblematerial. The terminal is suitable for walls of 150mm (6in) to355mm (14in) overall thickness.For special lengths up to 610mm (24in), consult your local AgaDistributor.If the cooker is to stand in a recess or against a wall which isto be tiled, in no circumstances should the tiles overlap therange top plate.NOTE: A GAS CONTROL VALVE MUST BE INSTALLED.IN THE GAS PIPELINE EXTERNALLY OF THE RANGE (NOTSUPPLIED).9.5mm (3/8in) N.P.T. Male connection near the front of therange on the L.H. or R.H. side - Optional.ALL GAS CONTROLS MUST BE U.S. PIPE THREADS.Maximum Heat Input: 4.4 kw (15,000 Btu/h)WALL TILINGGAS SUPPLY - U.S. PIPE THREADS