Lochinvar - API of NH

More documents

Recommendations

Info

Designer’s Guide / Knight XL BoilerLOCHINVAR CORPORATION300 MADDOX SIMPSON PKWYLEBANON, TN 37090www.lochinvar.com1. COMBUSTION AIR FROM OUTSIDEIf air is taken directly from outside the building with noduct, provide two permanent openings to the equipmentroom:(a) Combustion air opening, with a minimum free areaof one square inch per 4000 Btu/hr input (5.5 cm² perkW). This opening must be located within 12" (30 cm)of the bottom of the enclosure.(b) Ventilation air opening, with a minimum free area ofone square inch per 4000 Btu/hr input (5.5 cm² per kW).This opening must be located within 12" (30 cm) of thetop of the enclosure.2. COMBUSTION AIR THROUGH DUCTSIf combustion and ventilation air is taken from the outdoors usinga duct to deliver the air to the equipment room, each of the twoopenings should be sized based on a minimum free area of onesquare inch per 2000 Btu/hr (11 cm² per kW) of input.The combustion air duct must be located within 12" (30 cm) ofthe bottom of the enclosure and the ventilation duct must belocated must be located within 12" (30 cm) of the top of theenclosure.3. COMBUSTION AIR FROM INTERIOR SPACEIf air is taken from another interior space, each ofthe two openings specified above should have anet free area of one square inch for each 1000Btu/hr (22 cm² per kW) of input, but not less than100 square inches (645 cm²).The combustion air opening must be located within12" (30 cm) of the bottom of the enclosure and theventilation opening must be located must belocated within 12" (30 cm) of the top of theenclosure13
Designer’s Guide / Knight XL BoilerLOCHINVAR CORPORATION300 MADDOX SIMPSON PKWYLEBANON, TN 37090www.lochinvar.com4. DIRECT OUTSIDE AIR, SINGLE OPENINGIf a single combustion air opening is provided to bringcombustion air in directly from the outdoors, the openingmust be sized based on a minimum free area of onesquare inch per 3000 Btu/hr (7 cm² per kW). This openingmust be located within 12" (30 cm) of the top of theenclosure.CautionTHE COMBUSTION AIR MUST BE FREE OF ANY CONTAMINANTS OR CHEMICAL FUMES. SALTS,REFRIGERANTS AND SOLVENTS INTRODUCED INTO THE COMBUSTION PROCESS WILL RESULT INTHE FORMATION OF CORROSIVE ACIDS THAT WILL DAMAGE THE APPLIANCE AND THE VENT.COMBUSTION AIR FILTERThe Knight XL has an optional air filter box. Locatedon the left side over the combustion air inlet, the airfilter is installed to help ensure clean air is used for thecombustion process. The optional air filter box kit ispart number KIT40002.The filter size is 12" x 12" x 1" (40.6 cm x 30.4 cm x 2.5cm). You can find these commercially available filtersat any home center or plumbing supply store.14
Page 1 and 2: HIGH DESIGNER’S EFFICIENCY GUIDE
Page 4 and 5: Designer’s Guide / Knight XL Boil
Page 38 and 39: Designer’s Guide Knight XL Boiler

Lochinvar - API of NH

Create successful ePaper yourself

Delete template?

Save as template?