27
6 - COMBUSTION AIR AND VENT PIPING
Exhaust and combustion air intake are located in same general
location and are of equal length.
Twin Pipe Maximum Vent Lengths
Terminating in same location
125/150
165/205
3" [80 mm]
3" [80 mm]
2" [50 mm]
49 ft
100 ft
85 ft
Single Wall Elbows - Equivalent Length
3"
2"
45° bend
0.82 ft [0.25 m]
3 ft. [0.91m]
90° bend
1.64 ft [0.50 m]
5 ft [1.5 m]
Note: Twin Pipe Common Atmospheric Zone termination
can be run horizontal or vertical
FIGURE 6-11-Twin Pipe Roof Vent
FIGURE 6-12 -Twin Pipe Side Wall Vent (Multiple
Appliances)
Vent
12" (305mm) Min.
Separation
Manufacturer Recommends
Greater Separation
Combustion Air
15"
(381mm)
Max.
Vent Combustion
Air
12" (305mm) US,
18" (458mm) Canada
Min. Above
Anticipated Snow Line
Roof Line
12" (305mm) Min.
See Grade,
Snow & Ice
FIGURE 6-13 - Horizontal Twin Pipe, Exhaust and
Intake
12" (305mm)
Minimum Separation
Manufacturer
Recommends
Greater Separation
Polyproplene
PVC/CPVC
3"
45° bend
3.5 ft [1 m]
90° bend
5.0 ft [01.50 m]
240011941 REV B, [03/31/2018]
Summary of Contents for MAC-150
Page 2: ...MAC 205 ...
Page 4: ...MAH 165 ...
Page 65: ...61 APPENDIX A WIRING DIAGRAMS A 1 MODELS 125 Heat Only 240011941 REV B 03 31 2018 ...
Page 66: ...62 APPENDIX A WIRING DIAGRAMS A 2 MODELS 165 Heat Only 240011941 REV B 03 31 2018 ...
Page 67: ...63 APPENDIX A WIRING DIAGRAMS A 3 MODELS 150 Combi 240011941 REV B 03 31 2018 ...
Page 68: ...64 APPENDIX A WIRING DIAGRAMS A 4 MODELS 205 Combi 240011941 REV B 03 31 2018 ...
Page 69: ...65 NOTES 240011941 REV B 03 31 2018 ...
Page 70: ...66 NOTES 240011941 REV B 03 31 2018 ...
Page 81: ...9 125 WITH ZONE CIRCULATOR PUMPS 125 with Zone Circulator Pumps PN 240011430 REV G 03 31 18 ...
Page 84: ...12 125 WITH ZONE VALVES PIPING DIAGRAM 125 with Zone Valves PN 240011430 REV G 03 31 18 ...
Page 90: ...18 165 with Zone Valves 165 WITH ZONE VALVES PIPING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 94: ...22 150 205 WITH ZONE PUMPS WIRING DIAGRAM 150 205 With Zone Pumps PN 240011430 REV G 03 31 18 ...
Page 102: ...30 MODEL 125 Heat Only 125 HEAT ONLY WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 103: ...31 MODEL 165 Heat Only 165 HEAT ONLY WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 104: ...32 MODEL 150 Combi 150 COMBI WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 105: ...33 MODEL 205 Combi 205 COMBI WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 110: ...38 Low Water Cutoff Detail LOW WATER CUTOFF NO NO YES PN 240011430 REV G 03 31 18 ...
Page 111: ...39 NOTES PN 240011430 REV G 03 31 18 ...
Page 112: ......
Page 115: ......
