29
5.14 (3" /80 mm Only) Flexible Vent System
Single Wall Elbows - Equivalent Length
Vent Dia.
3" [80 mm]
45° bend
0.82 ft [0.25 m]
90° bend
1.64 ft [0.50 m]
• Follow venting manufacturer's instructions on
assembly and clearances to maintain.
• Maximum vent lengths based on equivalent
straight runs only. Include rigid pipe and fittings
in overall equivalent length calculations.
• Flexible venting installations use single wall
polypropylene to pass flue gasses to base of
chimney, then flexible venting to get them to
termination at the top.
• Combustion air is not supplied through masonry
chimney. Combustion air must be from outside
using 3" [80 mm] single wall polypropylene.
• Position boiler to use minimum of rigid single wall
polypropylene venting to the chimney.
•
Avoid sharp bends in flexible venting.
FIGURE 5-33 - (3" / 80 mm Only) Flexible Venting
System CAN BE USED ON ALL SIZES
Combustion
Air
Vent Terminal
Flexible Vent
Rigid Vent
5 - COMBUSTION AIR AND VENT PIPING
Flexible Pipe Minimum & Maximum Vent Lengths
3” [80 mm]
Diameter Pipe
75/100/115/125/150
165/205
Min
Max
Min
Max
Natalini
Exhaust
6 ft
[1.8 m]
75 ft
[22.8 m]
6 ft
[1.8 m]
50 ft
[15.2 m]
Intake
6 ft
[1.8 m]
50 ft [15.2 m]
6 ft
[1.8 m]
50 ft
[15.2 m]
DuraVent
®
Exhaust
6 ft
[1.8 m]
82 ft [24.9 m]
6 ft
[1.8 m]
50 ft
[15.2 m]
Intake
6 ft
[1.8 m]
50 ft [15.2 m]
6 ft
[1.8 m]
50 ft
[15.2 m]
Centrotherm
Exhaust
6 ft
[1.8 m]
52 ft [15.8 m]
6 ft
[1.8 m]
50 ft
[15.2 m]
Intake
6 ft
[1.8 m]
50 ft [15.2 m]
6 ft
[1.8 m]
50 ft
[15.2 m]
Z-Dens
Exhaust
NA
6 ft
[1.8 m]
50 ft
[15.2 m]
Intake
Flexible vent systems shall only be run
vertical. Horizontal runs before adapting
to flexible must be rigid pipe.
Note
Use Venting
Manufacturer
supplied base
support, not a
Tee
240013503 REV A, [03/15/2022]
Summary of Contents for UTICA BOILERS MACF-115
Page 2: ...MACF 150...
Page 4: ...MAHF 125...
Page 77: ...73 A 1 MODEL 75 100 Heat Only APPENDIX A WIRING DIAGRAMS 240013503 REV A 03 15 2022...
Page 78: ...74 A 2 MODEL 125 Heat Only APPENDIX A WIRING DIAGRAMS 240013503 REV A 03 15 2022...
Page 79: ...75 APPENDIX A WIRING DIAGRAMS A 3 MODEL 165 Heat Only 240013503 REV A 03 15 2022...
Page 80: ...76 APPENDIX A WIRING DIAGRAMS A 4 MODEL 115 Combi 240013503 REV A 03 15 2022...
Page 81: ...77 A 5 MODEL 150 Combi APPENDIX A WIRING DIAGRAMS 240013503 REV A 03 15 2022...
Page 82: ...78 A 6 MODEL 205 Combi APPENDIX A WIRING DIAGRAMS 240013503 REV A 03 15 2022...
Page 117: ...33 PN 240012875 REV D 03 15 2022 MODEL 75 100 HEAT ONLY 75 100 HEAT ONLY WIRING DIAGRAM...
Page 118: ...34 PN 240012875 REV D 03 15 2022 MODEL 125 HEAT ONLY 125 HEAT ONLY WIRING DIAGRAM...
Page 119: ...35 PN 240012875 REV D 03 15 2022 MODEL 165 HEAT ONLY 165 HEAT ONLY WIRING DIAGRAM...
Page 120: ...36 PN 240012875 REV D 03 15 2022 115 COMBI WIRING DIAGRAM MODEL 115 COMBI...
Page 121: ...37 PN 240012875 REV D 03 15 2022 MODEL 150 COMBI 150 COMBI WIRING DIAGRAM...
Page 122: ...38 PN 240012875 REV D 03 15 2022 MODEL 205 COMBI 205 COMBI WIRING DIAGRAM...
Page 128: ...44 PN 240012875 REV D 03 15 2022 LOW WATER CUTOFF LOW WATER CUTOFF DETAIL NO NO YES...
Page 133: ...49 PN 240012875 REV D 03 15 2022 3 FAULT SOLUTION SECTIONS...
