Gas-Fired Products PTS Series, PTU Series manual Multiple Heater Vertical venting arrangement

Multiple Heater Vertical venting arrangement.

Vent Cap (Leslie

VersaCap Type B)

Flashing

2 ft (77cm) minimum

(when no wall or

parapet exists)

	2 ft	(77cm)
10 ft (305cm)	minimum
or less

Total

Vent 2” (5cm)

Height Clearance

Thimble

Seal Joint

and Annular

Space

Plan View

vent size table	Wallor Parapet
See multiple
for diameter

4” Diameter single wall Vent

Flue Collar

adaptor

Connections to the common vent must be arranged to avoid direct opposition of exhaust products.

Multiple Heater Horizontal venting arrangement.

6” (15cm) minimum

1/2” (12mm) fall per 20 ft

(6m) toward vent terminal

4” Diameter

single wall Vent

	Vent Cap		Plan View
	(Breidert or			6” (15cm)
	equivalent Type L)
				minimum
2” (5cm)				1/2” (12mm) fall per 20 ft
Clearance		See multiple		(6m) toward vent terminal
Thimble		vent size table		4” Diameter
		for diameter
				single wall Vent
			Flue Collar
			adaptor
Swept Tee				Swept Y

2” (5cm) Clearance Thimble

See multiple

vent size table

for diameter

Flue Collar adaptor

		VENT SIZING TABLE — Multiple Heater Venting
					Number of Heaters
			Horizontal and vertical			Vertical Only
			1		2	3	4
	PTS/PTU 40		4”		4”	4”	4”
	PTS/PTU 50		4”		4”	4”	5”
	PTS/PTU 75		4”		4”	5”	6”
	PTS/PTU 100		4”		5”	6”	6”
	PTS/PTU 125		4”		5”	6”	7”
	PTS/PTU 150		4”		6”	7”	7”
	PTS/PTU 175		4”		6”	7”	8”
	PTS/PTU 200		4”		6”	7”	8”
					COMMON VENT DIAMETER
			(If a size is not available use the next larger size.)
Form #43343330
May 08				–37–