Lochinvar - API of NH

Designer’s Guide / Knight XL BoilerLOCHINVAR CORPORATION300 MADDOX SIMPSON PKWYLEBANON, TN 37090www.lochinvar.comCONDENSATE TRAPThe Knight XL is fitted with a condensate trap to be field mounted onto theappliance. The trap is a requirement of the ANSI standard for any CategoryIV vented appliance with condensation forming in the stack.If local code requires condensate neutralization, please order KIT3046,Neutralization Kit.HIGH ALTITUDE APPLICATIONSAtmospheric pressure decreases as the height above sea level increases. Atany altitude above sea level, a cubic foot contains less gas than a cubic footat sea level. Thus, the heating value of a cubic foot of fuel gas will decreaseas height above sea level increases. Therefore a recalculation of heat inputrate should be performed on any appliance beginning at 2000 feet. Ratingsshould be reduced at the rate of 4 percent for each 1000 feet above sea level.ImportantTHE KNIGHT XL BOILER MUST BE FACTORY TRIMMED FOR INSTALLATIONS ABOVE 4500 FEET.OPTIONAL EQUIPMENTLochinvar provides the following selection of optional equipment to meet your buildingrequirements.Alarm Bell – Field Installation Kit, KIT3085Installed onto the back of the appliance and wired to the Alarm on Any Failure contacts. It willsound on any failure. A silencing switch is provided. Alarm on Any Failure contacts are standardon every Knight XL boiler for connection to a remote alarm bell or Building Management System.High & Low Gas Pressure Switches with Manual Reset – Factory Installation OnlyThe switches are mounted inside the appliance. The High Gas Switch will interrupt the call forheat should high gas pressure be sensed in the gas line. The Low Gas Switch will interrupt thecall for heat if the gas pressure supplied to the appliance is too low to achieve a safe burnerflame. Both switches require manual reset to restart the appliance.High and Low Gas Pressure Switches with Manual Reset are part of the Factory Mutual, GE Gapor CSD1 option packages.Low Water Cut-Off, Probe Type with Manual Reset – Field Installation Kit, KIT3057The electronic board is mounted in the control panel with a sensing probe mounted in the topheader of the heat exchanger. The LWCO is set to interrupt the call for heat if a low watercondition is sensed. The LWCO requires manual reset to restart the appliance. This is offeredfor many local codes that do not accept the standard-equipped flow switch as a low water cut offdevice. Check with local code authorities for acceptance of the standard flow switch as a lowwater cut off device.30