Assessments - 4, GPA: 4.5
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Ceramic fiber blanket liner (item 3, WBV-04 and WV-05) should be on floor of boiler in front of target wall. 5. Remove the two (2) knockouts in the front jacket panel which will allow clearance for the hinge. Place the front jacket panel on the block and attach the left and right side panels in the same manner as they are attached to the back panel. 6. Reinstall the burner mounting plate. BOILER PLACEMENT AND ASSEMBLY (See Table 8.1 for parts identification). Figure 2.1: Steam boiler 5 Figure 2.2: Water boiler PIPING AND CONTROLS 3. PIPING AND CONTROLS NOTICE Do not pipe boiler before jacket is installed. A. PRESSURE TEST BLOCK ASSEMBLY 1. Make up cold water supply connection to the boiler. 2. Install pressure gauge or pressure-temperature gauge in tapping provided. See Boiler Dimensional drawing, Figures 7.1 and 7.2 (Section 7) 3. Plug all open tappings in the boiler and fill with water. Apply approximately thirty (30) psig pressure. Check to make certain that all joints and fittings are water tight. 4. After all joints and connections have been proven tight, remove cold water supply and plugs from all tappings that are to be used. See Figures 7.1 and 7.2 (Section 7) for tapping locations. B. BOILER RETURN CLEARANCE Return piping must allow for opening and closing Burner Mounting Plate. PB Heat, LLC suggests installing a 1-1/4 NPT tee, a 90° elbow, and a 1-1/4 NPT x 5" long nipple in the return tapping before a vertical stand pipe is used. C. WATER BOILER PIPING 1. Refer to the Water Installation Survey and Hydronics Institute Residential Hydronic Heating Installation/Design Guide for guidance. 2. The supply and return connections should be sized to suit the system. A 1-1/2" to 1-1/4" reducing coupling may be used where the system piping is 1-1/2". 3. The supply should be out the top of the back section and return to the bottom of the front section as shown in Figure 3.1. There is a 3/4" tapping in the top of the back section for air elimination. Figure 3.1: Water Boiler Piping 4. When the return temperature from the system will be below 150°F on oil boilers for extended periods (heat pump systems, outdoor reset, snow melt, etc.), provide piping and controls to protect the boiler from condensation. Condensation will damage the boiler and will lead to shortened boiler life and maintenance problems. 5. If using a Partner indirect fired water heater or other, see Figure 3.6 for typical piping. Also refer to additional instructions supplied with the Partner. 6. If the boiler is to be used in conjunction with a refrigeration system, the chilled medium shall be piped in parallel with boiler and proper valves applied to prevent the chilled medium from entering the boiler. Refer to Figure 3.5. 7. If the boiler is connected to heating coils located in air handling units, the boiler piping system must be equipped with flow control valves or other automatic devices to prevent gravity circulation of the boiler water during the cooling cycle. D. STEAM BOILER PIPING 1. Refer to the Steam Installation Survey and Hydronics Institute Residential Hydronic Heating Installation/Design Guide for assistance. 2. See table below for pipe sizing. The return loop from system should always enter equalizer through the Hartford Loop, 2" to 4" below normal water line. See Figure 3.2. Boiler Model No. Supply Riser "A" Header "B" Equalizer "C" WBV-03 (1) 2" 2” or 3” 1-1/4" WBV-04 (1) 2" 2” or 3” 1-1/4" 3. Use swing joints to attach header to avoid damage to the boiler due to thermal expansion and contraction of steam header pipe. 4. Pipe the steam header a minimum of 24" above the normal water line using swing joints to attach the risers into the steam header. HEADER MAKE–UPRISEREQUALIZERBAC CONNECTION Figure 3.2: Steam Boiler Piping PIPING AND CONTROLS E. TANKLESS HEATER OR COVERPLATE 1. If a tankless coil is used (item 9), install as pictured. On water boilers, install in opening in front section. On steam boilers, install in opening in rear section. For suggested piping of tankless water heaters refer to Figures 3.3 and 3.4. DANGER Install anti-scald device in hot water supply piping. Water temperature above 125°F can cause severe burns instantly or death from scalds. NOTICE X1019R, X1020R, and PP1011R coils installed in WBV boilers have internal flow controls installed. Do not use external flow controls with these coils. Figure 3.3: Tankless Coil Piping, Steam Boiler 2. If not using a tankless coil, cover the heater opening with cover plate (item 7 or 16). NOTICE Be sure rubber gasket is in place between cover plate or water heater plate and boiler section. F. CONTROLS CAUTION Pipe the discharge of the safety valve or relief valve to prevent injury in the event of pressure relief. Pipe the discharge to a drain. Provide piping that is the same size as the relief valve. 1. Water Boiler Controls: a. Install the limit / operating control, pressure- temperature gauge and safety relief valve. See Figure 7.1 (Section 7) for proper location....
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