Riverside Hydronics 1000 WBX 125A-IFC, Инструкция по установке и обслуживанию, Страница: 17 / 42

17
34-56 07/13
The following vent information is provided for use in design calculations, if needed.
Venting Specifications
Boiler
Input Mbtu
Combustion Air
Volume (cfm)
Max Vent
Press. “W.C.
399 136 0.5
500 170 0.6
650 221 0.8
750 255 1.0
850 289 1.2
900 306 1.2
1000 340 1.3
8.4 Vertical or Horizontal Vent Termination
The vent terminal must extend at least 3 ft (.09 m) above the highest point where it passes through the roof of a
building and at least 2 ft. (.06 m) higher than any portion of a building within a horizontal distance of 10 ft. (3.0 m).
The vent cap must terminate at least 3 feet (0.91 m) above any forced air inlet within 10 feet (3.05 m); 4 feet (1.22 m)
below, 4 feet (1.22 m) horizontally from or 1 foot (0.3 m) above any door, window or gravity air inlet to the building; 1
foot (0.3 m) above grade; 1 foot (0.3m) above normal snow levels and shall terminate at least 7 feet (2.13 m) above
grade when located adjacent to public walkways or gathering areas.
The vent terminal should not be installed closer than 3 feet (0.91 m) from an inside corner of an L-shaped structure.
8.5 Combining
Category IV Vents
Combined Centauri or Centauri Plus Category IV gas vent systems must incorporate an Exhausto or Tjernlund
variable speed, modulating, mechanical draft inducer capable of maintaining the appropriate negative draft at the end
of the common flue, to assure that all boilers in the combined vent system operate with a negative draft.
Do not
exceed negative 0.25” W.C. See “Combining Vents with a Draft Inducer ” illustration below.
WARNING: Do not connect multiple boiler vents into a single unpowered or fixed speed powered vent. This
could cause unsafe operation and the potential for poisonous carbon monoxide to enter occupied areas.
Such improper installation can cause property damage, personal injury, exposure to hazardous materials or
loss of life.
Conventional Venting Through the Wall Venting Combining Vents with a Draft Inducer