UTICA BOILERS MAHF-75 Installation, Operation And Maintenance Manual page 32

FI GURE 5 - 2 6 - Tw in Pipe Side W a ll Vent ( M ult iple
Applia nces)
This Termination
Not e: 3" shown for clarit y. 12" bet ween
can be used on:
vent and com bust ion air of ot her boilers
2" / 60 mm ON
required in all m ult iple boiler inst allat ions.
165/ 205
3" / 80 mm
ON ALL SIZES
vent only
Com bust ion Air
FI GURE 5 - 2 7 - ( 3 " / 8 0 m m ON LY) Tw in Pipe Side
W a ll w it h 4 5 ° Vent
This Termination
can be used on:
2" / 60 mm ON
165/ 205
3" ( 80 m m ) Min.
24" ( 610 m m ) Max.
3" / 80 mm
ON ALL SIZES
vent only
Com bust ion Air, 90°
Elbow Downward
FI GURE 5 - 2 8 - ( 3 " / 8 0 m m ON LY) Tw in Pipe Side
W a ll Vent
3" ( 80 m m ) Min.
24" ( 610 m m ) Max.
Separat ion
See Grade,
Snow & I ce
See page 23
5 - COM BU STI ON AI R AN D V EN T PI PI N G
12" ( 305 m m ) Min.
Separat ion
Manufact urer Recom m ends
Great er Separat ion
Vent
See Grade,
Snow & I ce
See page 23
Vent
Separat ion
45° Elbow
Upward
12" ( 305 m m ) Min.
24" ( 610 m m ) Max.
Separat ion
See Grade,
Snow & I ce
See page 23
12" ( 305 m m ) Min.
From Overhang
12" ( 305 m m ) Min.
24" ( 610 m m ) Max.
Separat ion Bet ween
Bot t om Of
Com bust ion Air I nt ake
And Bot t om Of Vent
This Termination
can be used on:
2" / 60 mm ON
Vent
Com bust ion Air
ON ALL SIZES
FI GURE 5 - 2 9 - ( 2 " / 6 0 m m ON LY) Vent Pipe w it h T
CAN BE U SED ON ALL SI Z ES
Com bust ion Air
See Grade,
Snow & I ce
See page 23
FI GURE 5 - 3 0 - ( 2 " / 6 0 m m ON LY) Vent Pipe w it h T
CAN BE U SED ON ALL SI Z ES
Com bust ion Air
See Grade,
Snow & I ce
See page 23
FI GURE 5 - 3 1 - ( 2 " / 6 0 m m ON LY) Tw in Pipe Side
W a ll Vent CAN BE U SED ON ALL SI Z ES
Com bust ion Air
See Grade,
Snow & I ce
FI GURE 5 - 3 2 - ( 2 " / 6 0 m m ON LY) Tw in Pipe Side W a ll
Vent CAN BE U SED ON ALL SI Z ES
165/ 205
3" / 80 mm
See Grade,
vent only
Snow & I ce
See page 23
2 8
3" ( 80 m m ) Min.
24" ( 610 m m ) Max.
Separat ion
Vent
24" ( 610 m m ) Max.
3" ( 80 m m ) Min.
24" ( 610 m m ) Max.
Separat ion
Com bust ion Air
240013503 REV A, [ 03/ 15/ 2022]
Vent
6" ( 153 m m ) Min.
24" ( 610 m m ) Max.
Separat ion
6" ( 153 m m ) Min.
24" ( 610 m m ) Max.
Separat ion
3" ( 80 m m ) Min.
Separat ion
Vent
Vent
3" ( 80 m m ) Min.
24" ( 610 m m ) Max.
Separat ion