Mountain Series CEInstallation and Operation Manual16An ongoing program of product improvement may require us to changespecifications without notice. WS-MS-(RFG, RFG-IR)-CE,Revised May 2014 Doc no: M0037.01info@woodstone-corp.com or visit woodstone-corp.comwood stone corporation1801 w. bakerview rd.bellingham, wa 98226 usat. +1.360.650.1111f. +1.360.650.1166OVEN VENTINGWood Stone ovens should be vented in accordance with pertinent national, regional and local codes concerning such appliances;check venting plans with the authority having jurisdiction before proceeding with installation�The above statement taking precedence, Wood Stone Corporation recommends the following two venting options:1. The Wood Stone MS Series ovens can be vented as a Type A appliance (with no flue connection), designed to be installedunder an exhaust hood (canopy)� The hood must be a Type 1 (grease rated) hood connected to a (grease rated) duct system�The venting system must be designed and installed in accordance with all relevant codes pertaining to grease and smokeproducing commercial cooking appliances� Ovens that utilize solid fuel must be vented separately from any non-solid fuelburning appliances� There may be requirements for interlocking the oven or its gas supply with the ventilation system� Checkwith your local code official� Airflow should be adjusted according to the requirements specified by the hood manufacturerand/or local codes�OR2. The oven is also approved as a Type B11 appliance, designed to be connected directly to a chimney which is installed inaccordance with all relevant local and national codes� The chimney system must be installed and constructed to the samerequirements as a duct that serves grease and smoke producing commercial cooking appliances� If venting the oven with thismethod, the oven must be vented independently of other equipment� A suitable fan should be used at the end of the duct runto ensure proper draft in all conditions� Wood Stone does not recommend using an in-line type fan� When installed, the fanspeed/air flow should be adjusted to attain the appropriate duct pressure at the oven flue collar:DUCT PRESSUREFor gas-fired ovens without solid fuel: 0�25 mbar, (0�1" W�C�)For any oven utilizing solid fuel: 0�35 mbar, (0�14" W�C�)This pressure may be checked by inserting the pressure test probe up through the oven doorway to the point where theduct is connected to the oven flue collar�FAN TEMPERATURE RATINGThe fan must also be of a suitable temperature rating�For gas-fired ovens without solid fuel the fan must be rated for a minimum of 150 °C (300 °F) continuous�INTERLOCK SYSTEMThere may be requirements for interlocking the oven or its gas supply with the ventilation system� Check with your localcode official�OVEN VENTING