PVH58
VENTING CLEARANCES
A
. Clearance above a veranda, porch, deck, or balcony or other combustible surface is 27”. Clearance above grade is12in [30cm]
min.
[1,2]
.
B. Clearance to window or door that may be opened. 12in [30cm] min. for appliances 100,000BTUh [30kW] and lower, in Canada. 9in
[2]
[23cm] for appliances 50,000 BTUh and lower, in USA.
C. Clearance to permanently closed window min. 12in [30cm] recommended to prevent condensation on window, in Canada. 9in
[2]
[23cm] for appliances 50,000 BTUh and lower, in USA.
D. Vertical clearance to ventilated soffit located above the termination within a horizontal distance of 2ft [60cm] from the center line of
the termination. 18in [46cm] min.
[4]
E. Clearance to unventilated soffit 12in [30cm] min.
F. Clearance under veranda, porch, deck or balcony 12in [30cm] min.
[3]
(US
[4]
)
G. Clearance from a perpendicular inside wall or outer corner to the edge of the vent terminal plate is 3in [7.6cm] min.
H. Clearance to each side of center line extended above meter/regulator assembly 3ft [91cm] within a height 15ft [4.5m] above the
meter/regulator assembly.
I. Clearance to service regulator vent outlet 3ft [91cm] min.
[1]
(US
[4]
)
J. Clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other appliance: In Canada, 6in [15cm] for
appliances
≤
10,000 BTUh [3kW], 12in
[1]
[30cm] minimum for BTUh [30kW], 36in [91cm] for appliances >100,000 BTUh [30kW]. In the
USA, 6in
[2]
[15cm] for appliances
≤
10,000 BTUh [3kW], 9in [23cm] for appliances >10,000 BTUh [3kW] and
≤
50,000 BTUh [15kW],
12in [30cm] for appliances >50,000 BTUh [15kW].
K. Clearance to a mechanical air supply inlet 6ft [1.8m] min.
[1]
in Canada. In USA, 3ft [91cm] above if within 10ft
[2]
[3m] horizontally.
L. Clearance above paved sidewalk or a paved driveway located on public property 7ft [2.1m] min.
[5]
M. Clearance above highest point of exit on roof 18in [45cm].
N. Clearance to perpendicular wall 24in [60cm]. (Recommended to prevent re-circulation of exhaust products. For additional
requirements check local codes.)
1.
In accordance with the current CSA B149.1, Natural Gas and Propane Code.
2.
In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.
3.
Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
4.
Clearance in accordance with local installation codes and the requirements of the gas supplier.
5.
A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both
dwellings.
Note:
Clearances are to the edge of terminal plate, add 5-1/2" to
clearances to arrive at center line.
Note:
Local Codes or Regulations may require different clearances.
55
Содержание ZRB46
Страница 31: ...Gas Conversion for Modulator PART C WARNING WARNING 31...
Страница 41: ...Configuration 1 Basic manual HI LO and manual ON OFF capabilities 41...
Страница 42: ...Receiver Module 584 523 521 221 1001 P221SI Receiver Module 584 523 521 221 1001 P221SI 42...
Страница 53: ...5 1 1 2 1 2 10 5 8 1 1 4 8 1 8 12 1 2 16 58PVH Dimensions 13 13 10 5 8 11 13 11 11 11 3 8 5 8 1 8 11 1 8 53...
Страница 63: ...PVCM Schematic Millivolt 63...
Страница 67: ...PVCM Schematic IPI 67...
Страница 68: ...68...