Napoleon NBM030S2A Installation And Operating Instructions Manual

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Napoleon NBM030S2A Installation And Operating Instructions Manual Manual pdf 34 page image

W415-1117 / A / 03.11.1434IOMIOMH16.4.1A typical configuration would be to cement the side branch of a 1/2” CPVC tee to the drain trap assemblyoutlet, with the end branches oriented vertically. (Figure 15)A 1” (25mm) piece of 1/2” CPVC pipe cemented to the upper end branch will serve as a vent, which willprevent the creation of a vapor lock, and serve as an overflow in the event that the drain line becomesblocked. A similarly sized piece of pipe cemented to the lower end branch will permit connection to thecondensate outlet with 5/8” ID / 7/8” OD flexible tubing, or the condensate may be piped entirely in CPVC tothe floor drain/sump/condensate pump.IMPORTANT:IF AN AIR CONDITIONING EVAPORATOR COIL DRAIN IS TO SHARE THE FURNACE DRAINLINE, IT SHOULD BE CONNECTED WITH A TEE FITTING DOWNSTREAM FROM THETRAP. DO NOT CONNECT THE EVAPORATOR COIL CONDENSATE DRAIN UPSTREAM OFTHE FURNACE DRAIN TRAP ASSEMBLY.NOTEIt is recommended that the condensate drain assembly not be cemented to the condensate trapoutlet, if removal of the condensate trap is required in the future. Use a piece of the provided 1/2”drain hose if removal of the condensate trap is anticipated.11.4.2 PRIMING CONDENSATE TRAPH16.4.2IMPORTANT:THE CONDENSATE DRAIN TRAP ASSEMBLY SHOULD BE FULL OF WATER (PRIMED)BEFORE STARTING THE FURNACE. TO FILL THE CONDENSATE DRAIN TRAP ASSEMBLY,TEMPORARILY REMOVE THE VENT DRAIN HOSE FROM THE EXHAUSTER ASSEMBLYELBOW/DRAIN FITTING, AND POUR APPROXIMATELY ONE CUP OF WATER DOWN THEHOSE. WATER WILL BEGIN RUNNING OUT THE CONDENSATE DRAIN TRAP OUTLETWHEN IT IS FULL. REFASTEN THE VENT DRAIN HOSE TO THE EXHAUSTER ASSEMBLYELBOW/DRAIN FITTING.THE CONDENSATE DRAINAGE CONFIGURATION REQUIRES A VENT. IT TAKES LESSTHAN A ONE INCH RISE ANYWHERE ALONG THE HORIZONTAL ROUTE OF THE DRAINTUBE TO CREATE A VAPOR LOCK, WHICH WILL PREVENT CONDENSATE FROMDRAINING AWAY FREELY, AND RESULT IN ERRATIC FURNACE OPERATION.11.5 ALTERNATE CONDENSATE DRAIN INSTALLATION USING 1/2” PVC OR 3/4”CPVC1. The supplied parts bag includes a length of 1/2” and 5/8” rubber hose and the condensate trap. Install thecondensate trap according to instructions included in this manual.FIGURE 21 FIGURE 22