Assessments - 2, GPA: 4.5
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Insert the male end of the second pipe into the female end of the first pipe until the bead on the male end contacts the flare on the female end (Fig. 24). j) Tighten the locking band with a nut driver. k) Repeat Steps (i) and (j) for the remaining FasNSeal components. If a termination elbow or tee is used, use this procedure to complete the exhaust system. l) To join FasNSeal to a 3” VH-1 terminal, use a Protech FSA-M-3 “Modine Appliance Adapter” (Protech #300444). Apply a .” bead of silicone to the terminal connection about .” from its end. Slip the female end of the adapter over the terminal end so that there is an overlap of at least 1 . inches. Tighten the hose clamp to mechanically lock the pipe onto the terminal. Apply and smooth silicone over the outside of the joint including the hose clamp in the FasNSeal pipe. Connect the female end of the venting system to the male end of the adapter per Steps (i) and (j) above. 23 m) To join FasNSeal to a 4” VH-1 terminal slip the female end of the FasNSeal pipe over the terminal connection so there is an overlap of at least 1 .”. Tighten the hose clamp to mechanically lock the pipe onto the terminal. Apply and smooth silicone over the outside of the joint including the hose clamp in the FasNSeal pipe. n) Allow the silicone to cure for 24 hours before operating the boiler. 8) Condensate Traps: a) Trap should have the basic configuration shown in Figure 25. All tubing is 3/8” I.D. b) All drain tubing must be acid resistant. c) At least the first 6 inches of tubing must be silicone with a 400F temperature rating. d) Pipe condensate to a drain or other suitable location. Make sure that condensate disposal method is in accordance with local regulations. Ensure condensate is not subjected to freezing temperatures. 24 VII Gas Piping Gas piping to the boiler must be sized to deliver adequate gas for the boiler to fire at the nameplate input at a line pressure between the minimum and maximum values shown on the rating plate. For more information on gas line sizing, consult the utility or Part 2 of the National Fuel Gas Code. Figure 26 shows typical gas piping connections to the BWF boiler. A sediment trap must be installed upstream of all gas controls. Install a manual shutoff valve outside the jacket and ground joint union as shown. The boiler and its gas connection must be leak tested before placing the boiler in operation. When doing this, the boiler and its individual shut-off must be disconnected from the rest of the system during any pressure testing of that system at pressures in excess of . psi. When pressure testing the gas system at pressures of . psi or less, isolate the boiler from the gas supply system by closing its individual manual shut-off valve. * State of Massachusetts Requires Manual Shut-off to be “T” Handle Type * 25 VIII System Piping CAUTION • INSTALL BOILER SO THAT THE GAS IGNITION SYSTEM COMPONENTS ARE PROTECTED FROM WATER (DRIPPING, SPRAYING, RAIN, ETC) DURING APPLIANCE OPERATION AND SERVICE (CIRCULATOR REPLACEMENT, ETC). • OPERATION OF THIS BOILER WITH CONTINUOUS RETURN TEMPERATURES BELOW 120F CAN CAUSE SEVERE HEAT EXCHANGER CORROSION DAMAGE. • OPERATION OF THIS BOILER IN A SYSTEM HAVING SIGNIFICANT AMOUNTS OF DISSOLVED OXYGEN CAN CAUSE SEVERE HEAT EXCHANGER CORROSION DAMAGE. • DO NOT USE TOXIC ADDITIVES, SUCH AS AUTOMOTIVE ANTIFREEZE, IN A HYDRONIC SYSTEM. Standard Piping Figure 27 shows typical boiler system connections on a single zone system. Additional information on hydronic system design may be found in Installation of Residential Hydronic Systems (Pub. #200) published by the Hydronics Institute in Berkely Heights, NJ. The components in this system and their purposes are as follows: 1) Relief valve (Required) – Mount the relief valve in the . tapping on the right side of the boiler as shown in Figure 1 using the . nipples and elbow provided. The relief valve shipped with the boiler is set to open at 30 psi. This valve may be replaced with one having a setting of up to the “Maximum Allowable Working Pressure” shown on the rating plate. If the valve is replaced, the replacement must have a relief capacity in excess of the DOE heating capacity for the boiler. Pipe the discharge of the relief valve to a location where water or steam will not create a hazard or cause property damage if the valve opens. The end of the discharge pipe must terminate in an unthreaded pipe. If the relief valve discharge is not piped to a drain, it must terminate at least 6 inches above the floor. Do not run relief valve discharge piping through an area that could be subjected to freezing temperatures. The termination of the relief valve discharge piping must be in an area where it is not likely to become plugged by debris. DANGER • PIPE RELIEF VALVE DISCHARGE TO A SAFE LOCATION. • DO NOT INSTALL A VALVE IN THE RELIEF VALVE DISCHARGE LINE. • DO NOT INSTALL RELIEF VALVE IN ANY OTHER LOCATION THAN THAT SHOWN IN FIGURE 1. • DO NOT PLUG RELIEF VALVE DISCHARGE. 2) Ci...
Este manual também é adequado para os modelos :Aquecedores de Água - BWF061 (796.37 kb)