33
Example: A 100MBH model is to be installed as using Vent Option 34 in a masonry chimney as shown in Figure 7.23. The
following components are used:
Vent:
3” DuraVent Poly-Pro (Rigid) – 4ft
3” DuraVent Poly-Pro Flex – 30ft
Poly-Pro elbows – 2 (one at base of chimney and one above boiler)
DuraVent 3PPS-FK Terminal
Intake:
3” PVC – 6ft
3” PVC Sweep 90 – 2 (one above the boiler and one as an intake terminal)
Vent Equivalent length – First elbow is ignored. The terminal is also ignored. From Table 7.14, the equivalent length of 3”
DuraVent Poly-Pro Flex is 2.0ft. From Table 7.1 the equivalent length of the second 90 elbow is 8.7ft. The equivalent length
of the vent system is therefore:
4 + 8.7 + (30 x 2.0) = 72.7ft.
Since Vent Option 34 shows a max vent length of 135ft, the planned vent length of OK.
Intake Equivalent length - First elbow and termination elbow are ignored, leaving just the straight pipe. Equivalent length of
the intake system is therefore 6ft.Since this is less than 135ft, the planned intake length is OK.
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Summary of Contents for PHNTM080
Page 2: ......
Page 9: ...7 Figure 4 1 Minimum Clearances To Combustible Construction...
Page 11: ...9 Figure 5 1 Wall Layout Mounting Hole Location...
Page 12: ...10 Figure 5 2 Boiler Mounting Bracket Installation Boiler Wall Mounting...
Page 39: ...37 FIGURE 7 24 SPLIT VENT SYSTEM FLEX IN ABANDONED MASONRY CHIMNEY VENT OPTIONS 33 38...
Page 63: ...61 This page is intentionally left blank...
Page 68: ...66 FIGURE 9 2 PIPING METHOD 1 NEAR BOILER PIPING HEATING ONLY...
Page 72: ...70 FIGURE 9 6 PIPING METHOD 1 NEAR BOILER PIPING SHADED BOILER LOOP...
Page 82: ...80 FIGURE 10 4 PROPER INSTALLATION OF HEADER SENSOR...
Page 84: ...82 FIGURE 10 6 INTERNAL WIRING CONNECTIONS DIAGRAM...
Page 85: ...83...
Page 92: ...90 Lighting and Operating Instructions...
Page 101: ...99 FIGURE 12 5 SETTINGS MENU SEE PART C FOR ADDITIONAL INFORMATION...
Page 113: ...111 FIGURE 13 2 IGNITION ELECTRODE GAP FIGURE 13 3 CONDENSATE TRAP EXPLODED PARTS VIEW...
Page 125: ...123...
Page 127: ...125 40 33 31 27 28 34 35 37 38 32 39 36 29 30 48 Blower Gas Valve Assembly for 80 100 120...
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