I&O Manual - Solaris Water Heaters - Categories On Thermal ...

5. For water heater located in an unconfined spacein a building of other than unusually tight construction,adequate combustion and ventilationair is normally provided by fresh air infiltrationthrough cracks around windows and doors.6. For water heater located within unconfined spacein building of unusually tight construction, orwithin equate confined space, provide outdoorair through two permanent openings whichcommunicate directly or by duct with theoutdoors or spaces (crawl or attic) freely communicatingwith the outdoors. Locate one openingwithin twelve (12) inches of top of space. Locateremaining opening within twelve (12) inches ofbottom of space. Minimum dimension of airopening is three (3) inches. Size each openingper following:a. Direct communication with outdoors. Minimumfree area of one (1) square inch per 4,000 Btu perhour input of all equipment in space.b. Vertical ducts. Minimum free area of one (1)square inch per 4,000 Btu per hour input of allequipment in space. Duct cross-sectional areashall be same as opening free area.c. Horizontal ducts. Minimum free area of one (1)square inch per 2,000 Btu per hour input of allequipment in space. Duct cross-sectional areashall be same as opening free area.Alternate method for water heater located withinconfined space: Use indoor air if two permanentopenings communicate directly with additionalspace(s) of sufficient volume such that combinedvolume of all spaces meet criteria for unconfinedspace. Size each opening for minimum free areaof one (1) square inch per 1,000 Btu per hourinput of all equipment in spaces, but not less than100 square inches.7. Combustion Air/Ventilation Duct Louvers andGrilles. Equip outside openings with louvers toprevent entrance of rain and snow, and screens toprevent entrance of insects and rodents. Louvers andgrilles must be fixed in open position or interlockedwith equipment to open automatically before burneroperation. Screens must not be smaller than ¼ inchmesh.Consider the blocking effect of louvers, grilles andscreens when calculating the opening size to providethe required free area. If free area of louver or grilleis not known, assume wood louvers have 20-25percent free area and metal louvers and grilles have60-75 percent free area.II. Unpack Water HeaterCAUTIONAvoid operating this water heater in an environment where saw dust, loose insulation fibers, drywall dust, etc. are present. If water heater is operated under these conditions, the burner interiorand ports must be cleaned and inspected daily to ensure proper operation.CAUTIONDo not drop water heater. Do not bump waterheater jacket against the floor.A. Move water heater to approximate installed position.B. Remove all crate fasteners.C. Lift and remove outside container. Save two of thewooden slats from the container sleeve for use in StepsE and F.D. Remove all water heater hold-down fasteners.WARNINGInstallation of this water heater should beundertaken only by trained and skilled personnelfrom a qualified service agency.E. Tilt the water heater to its front side or back side andslide a wooden slat under the raised feet.F. Tilt the water heater in the opposite direction and slideanother wooden slat under the raised feet.G. Slide the water heater left or right off the skid using thetwo wooden slats as runners.H. Move water heater to its permanent location.7