Slant/Fin VGH-299-CH, Инструкция по установке и обслуживанию, Страница: 33 / 128

E93.1601EN032.C VGH installation manual 33
NOTICE
9.1.2 V
ENT AND AIR INLET RESISTANCE TABLE
Minimum and maximum allowable combined vent and air inlet length :
- Minimum venting length: two feet (2 ft) for all boilers
- Maximum venting length: see table below.
Maximum Exhaust Length / Maximum Combustion Air Intake Length
VGH 299 VGH 399 VGH 500
4"
228' / 228' 121' / 121' 73' / 73'
5"
285' / 285'
6"
481' / 481'
For long lengths, check venting pipe and fittings for maximum allowable pressure.
This table may only be used for a single vent/air system for one boiler.
Do
NOT use this table for common vent systems with cascaded boilers.
Pipe, elbows, tees - equivalent feet: for DuraVent PolyPro
Item\ size 4" 5" 6"
1 ft Vent Pipe 1 ft 1 ft 1 ft
1 ft Flex Pipe (same diameter as rigid) 2 ft 2 ft NA
1 ft Flex Pipe (upsized one diameter) 0.6 ft NA NA
45 Elbow 5 ft 6 ft 6 ft
90 Elbow 12 ft 14 ft 14 ft
Tee 19 ft 21 ft 22 ft
Terminals equivalent feet: for DuraVent PolyPro
BOILER
TERMINAL size part #
VGH 299, 399 concentric roof: 4" vent 4PPS-VKL
4PPS-VK-TCL
37 ft
concentric wall: 4" vent 4PPS-HKL 13 ft
2 pipe wall: 4" vent 3x 4PPS-E90BL elbow + 2x 4PPS-BG bird screen 42 ft
VGH 500 2 pipe wall: 6" vent 3x 6PPS-E90BL elbow + 2x 6PPS-BG bird screen 50 ft
Vent and air intake pipe material
Items Materials
1)
Venting System Standards Warning
United States Canada 3)
Flue piping and
Fittings CPVC Schedule 40 ANSI/ASTM F441 All venting
material in
Canada must be
ULC S636
approved.
All Vent and Air-Inlet
materials installed on
gas
fired appliances in
CAN/US must meet the
Standards listed in this
Table.
Failure to comply could
result in fire, serious
injury or death.
PVC Schedule 40 ANSI/ASTM D1785
Stainless Steel SS UL-1738
Polypropylene PP -
Air inlet piping
and Fittings
2)
PVC - DWV ANSI/ASTM D2265
Stainless Steel SS UL-1738
Polypropylene PP -
Pipe cement PVC ANSI/ASTM D2564
CPVC ANSI/ASTM F493
Primers PVC/CPVC ANSI/ASTM F656
Notes:
1 PVC venting (exhaust and air-inlet) is not permitted within the Closet/alcove of a Closet/alcove installation.
2
The air-inlet does not require high temperature pipe material. Check applicable local codes for acceptable materials.
3 Use only vent gas material suitable for flue gas temperatures of 158
⁰
F (70
⁰
C) or higher.
Table 9-2
Table 9-3
Table 9-4
Table 9-5
Never use aluminum containing vent pipes in these boilers.
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any
other appliance. Failure to follow instructions may result in serious injury or death.
In Canada, the first piece of vent piping must be readily accessible for inspection.
Covering non-metallic vent pipe and fittings with thermal insulation is prohibited. Failure to
follow these instructions may result in property damage, personal injury or death.
WARNING