Vent Clearances - Empire Comfort Systems MILLIVOLT DVCD FP3-4 Series Installation Instructions Manual

Canadian Installations1
A= Clearance above grade,
veranda, porch, deck, or 12 in (30 cm)
balcony
12 in (30 cm) for appli-
B= Clearance to window or ances > 10,000 Btuh
door that may be open (3 kW) and ≤ 100,000
Btuh (30 kW)
C= Clearance to perma-
nently closed window
D= Vertical clearance
ventilated soffit located
above the terminal within
a horizontal distance of 2
feet (61 cm) from the cen-
ter line of the terminal
E= Clearance to unventi-
lated soffit
F= Clearance to outside
corner
G= Clearance inside corner
H= Clearance to each side 3 ft (91 cm) within a
of center line extended height 15 ft (4.5 m)
above meter/regulator above the meter/regula-
assembly tor assembly
Vinyl Soffit, Vinyl Ceiling, Vinyl Overhang Disclaimer
Clearances are to heat resistant material (i.e. wood, metal). This
does not include vinyl. Empire Comfort Systems will not be held
responsible for heat damage caused from terminating under vinyl
overhangs, vinyl ceilings or vinyl ventilated/unventilated soffits.
38712-4-0920

VENT CLEARANCES

US Installations2
12 in (30cm)
9 in (23 cm) for appli-
ances > 10,000 Btuh
(3 kW) and ≤ 50,000
Btuh (15 kW)
12 in (30 cm) 12 in (30 cm)
18 in (45 cm) 18 in (45 cm)
12 (30 cm) 12 (30 cm)
See page 30 See page 30
See page 30 See page 30
3 ft (91 cm)
ATTENTION
Canadian Installations1
I= Clearance to service
regulator vent outlet
J= Clearance to nonme-
12 in (30 cm) for appli-
chanical air supply
ances > 10,000 Btuh (3
inlet to building or the
kW) and ≤ 100,000 Btuh
combustion air inlet to
(30 kW)
any other appliance
K= Clearance to a mechani-
cal air supply inlet
L= Clearance above paved
sidewalk or paved drive-
way located on public
property
M= Clearance under
veranda, porch deck, or
balcony
In accordance with the current CSA B149.1, Natural Gas and Propane Instal-
1
lation Code
In Accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas
2
Code
A vent shall not terminate directly above a sidewalk or paved driveway that is
†
located between 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.
For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1: Clearance
must be in accordance with local installation codes and the requirements of the gas
supplier.
US Installations2
3 ft (91 cm) 3 ft (91 cm)
9 in (23 cm) for appli-
ances > 10,000 Btuh
(3 kW) and ≤ 50,000 Btuh
(15 kW)
3 ft (91 cm) above if
6 ft (1.83 m) within 10 ft (3 m) hori-
zontally
7 ft (2.13 m) † 7 ft (2.13 m)
12 in (30 cm) ‡ 12 in (30 cm)
Page 27