Schwank compactSchwank P40-R - Manual (Page 21)

21
P40R-F I&O Manual
IM120801
RD: MAY 2014
RL: 3A
H ORIZONTAL VENT THROUGH A SIDE WALL : (Vertical vent through roof is on page 23)
 Refer to General Venting Requirements on page 19
 Minimum length of a horizontal side-wall vent:
 Regardless if a 90° elbow is installed, a Minimum linear 36 inch (3 ft; 91 cm) single
wall ‘C’ vent plus minimum 12 inch (30.5 cm) double wall ‘B’ vent through wall
 Total minimum linear vent length of 48 inches (4 ft; 122 cm)
 Maximum length of a horizontal side-wall vent:
 Total Maximum vent length is 15 ft (4.6 m)
 Each 90° or 45° elbow is equivalent to 5 ft
 A minimum 12 inch (30.5 cm) double wall ‘B’ vent must be used through the wall
 The flue vent system must slope downwards approximately 1/4" per foot (63 mm / 300 mm)
toward the vent terminal, from the termination of the tube - radiant tube must be level.
 A maximum of two elbows (90° or 45°; each = equivalent 5 ft) can be installed in a horizon-
tal vent
 For side wall venting use either Schwank/InfraSave 4”
(10 cm) horizontal vent terminal (Part
Number: JA-0528-XX - available as an option) or an approved 4”
(10 cm) “High Wind” vent
termination cap (see clearance information previous page and next page)
 Install the termination cap a minimum of 6 inches (15 cm) from the outside wall to the inside
edge of terminal opening to minimize back pressure caused by turbulent wind conditions
(See Fig. 9 above). This also ensures flue gases are directed away from the structure to
help protect building materials from degradation by the exhausted flue gases.
 The vent must be installed to prevent blockage by snow, undue wind pressure on the termi-
nation, and to protect building materials from degradation by flue gases.
Clearances Required for Horizontal Side Wall Vent :
 Refer to Figure 9 above, and in particular to Figure 11 and Table 3 next page for specific
requirements of codes in the USA and Canada
 Any values not listed in Table 3 shall be in accordance with local installation codes and the
requirements of the gas supplier
Footnotes for Table 3 (next page)
1
Installations in Canada in accordance with current CSA B149.1, Natural Gas and Propane
installation Code
2
Installations in the USA in accordance with the current ANSI Z223.1 / NFPA 54, National
Fuel Gas Code
† A vent shall not terminate directly above a sidewalk or paved driveway that is located be-
tween two single family dwellings and serves both dwellings
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides
beneath the floor
** Clearance in accordance with local installation codes and the requirements of the gas sup-
plier.