Laars NTH1000 Installation And Operation Instructions Manual

Also see for NTH1000: User manual User manual Installation and operation instructions

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Laars NTH1000 Installation And Operation Instructions Manual Manual pdf 12 page image

LAARS Heating SystemsPage 8Section 2LOCATING THE APPLIANCE2.1 Locating the ApplianceThe NeoTherm LC may be installed indoors oroutdoors. The unit may only be installed outdoorsin a location which will never experience freezingtemperatures. Choose a location for the unit whichallows clearances on all sides for maintenance andinspection. See Table 1. Always install the unit on afirm, level surface. Level the unit using the levelingfeet.The unit should not be located in an area whereleakage of any connections will result in damage tothe area adjacent to the appliance, or to lower floorsof the structure.When this type of location is not available, installa suitable drain pan, adequately drained, under theappliance.The appliance is design-certified by CSA-International for installation on combustible flooring;in basements; in closets, utility rooms or alcoves.NeoTherm LC boilers must never be installedon carpeting. The location for the appliance shouldbe chosen with regard to the vent pipe lengths andexternal plumbing.The unit shall be installed such that the gas ignitionsystem components are protected from water (dripping,spraying, rain, etc.) during operation and service(circulator replacement, control replacement, etc.).When vented vertically, the NeoTherm LC must belocated as close as practical to the vertical sectionof the vent. If the vent terminal and/or combustionair terminal terminate through a wall, and there ispotential for snow accumulation in the local area,both terminals should be installed at an appropriatelevel above grade or the maximum expected snowline.The dimensions and requirements that are shown inTable 1 should be met when choosing the locationsfor the appliance.2.2 Correct Vent Distance fromOutside Wall or Roof TerminationThe forced draft combustion air blower in theappliance has sufficient power to vent properly whenthe guidelines in Table 2 are followed.Note - When located on the same wall, theNeoTherm LC combustion air intake terminal mustbe installed a minimum of 12” below the exhaustterminal. There must also be a minimum horizontaldistance from intake to the exhaust terminal of 36.”APPLIANCE SUGGESTED SERVICE ACCESS CLEARANCESURFACE INCHES CMFront 24 60.9Left Side 12 30.5Right Side 18 45.7Back 24 60.9Top 24 60.9APPLIANCE REQUIRED CLEARANCE TO COMBUSTIBLESSURFACE INCHES CMFront 2 5.1Left Side 0 0Right Side 0 0Back 0 0Top 8 20.3Vent 1 2.6INTAKE / EXHAUSTSTANDARD MAX EQUIV.SIZE VENT FT. M1000 6” 100 301700 8” 100 30Installations in the U.S. require exhaust vent pipe that is PVC orCPVC complying with ANSI/ASTM D1785 F441, polypropylenecomplying with ULC-S636, or stainless steel complying withUL1738. Installations in Canada require exhaust vent pipe that iscertified to ULC S636.Intake (air) pipe must be PVC or CPVC that complies with ANSI/ASTM D1785 F441, ABS that complies with ANSI/ASTM D1527,stainless steel, or galvanized material.Closet and alcove installations do not allow the use of PVC underany circumstancesTo calculate max equivalent length, measure the linear feet of thepipe, and add 5 feet (1.5 m) for each elbow used.Table 2 - Vent / Air Pipe SizesTable 1 - ClearancesFor the concentric vent terminal kit (optional), followthe installation instructions included with the kit.