Install Instructions

Page 15
MINI-THERM JX Residential Boilers
®
Figure 7. Combustion Air and Vent Through Side Wall
*When vent terminal is less than 10 feet (3m)
horizontally from a forced air inlet, the terminal
must be at least 3 feet (0.9m) above the air inlet.
(US only)
† 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 oor.
Notes:
1) In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.
2) In accordance with the current ANSI Z223.1/NFPA 54, Natural Fuel Gas Code.
3) If locally adopted installation codes specify clearances di󰀨erent than those illustrated, then the most stringent clearance shall prevail.
4) For clearances not specied in CAN/CSA-B149, clearance is in accordance with local installation codes and the requirements of the gas supplier.
5) For clearances not specied in ANSI Z223.1/ NFPA 54, clearance is in accordance with local installation codes and the requirements of the gas supplier.
6) IMPORTANT: Terminal must be placed such that it remains a minimum of 12” above maximum expected snow line. Local codes may have more specic
requirements, and must be consulted.
A = Clearance above grade, veranda, porch,
deck, or balcony
)mc 03( ni 21)mc 03( ni 21
B = Clearance to window or door that may be
opened
● 6 in (15 cm) for appliances ≤ 10,000 Btuh (3 kW)
● 12 in (30 cm) for appliances > 10,000 Btuh (3 kW) and
≤ 100,000 Btuh (30 kW)
● 36 in (91 cm) for appliances >100,000 Btuh (30 kW)
● 6 in (15 cm) for appliances ≤ 10,000 Btuh (3 kW)
● 9 in (23 cm) for appliances > 10,000 Btuh (3 kW) and
≤ 50,000 Btuh (15 kW)
● 12 in (30 cm) for appliances >50,000 Btuh (15 kW)
wodniw desolc yltnenamrep ot ecnaraelC= C
D = Vertical clearance to ventilated soffit located
above the terminal within a horizontal
distance of 2 ft (61 cm) from
the center line of the terminal
tiffos detalitnevnu ot ecnaraelC = E
renroc edistuo ot ecnaraelC = F
See Note 4
See Note 4
See Note 4
See Note 4
See Note 4
See Note 5
See Note 5
See Note 5
See Note 5
See Note 5
See Note 5
See Note 5
See Note 5
ren
roc edisni ot ecnaraelC = G
H =
Clearance to each side of centerline
extended above meter / regulator assy
3 ft (91 cm) within a height of 15 ft (4.6 m)
)mc 19( tf 3teltuo tnev rotaluger ecivres ot ecnaraelC = I
J = Clearance to nonmechanical air
supply inlet to building or the
combustion air inlet to any
other appliance
● 6 in (15 cm) for appliances ≤ 10,000 Btuh (3 kW)
● 12 in (30cm) for appliances > 10,000 Btuh (3 kW) and
≤ 100,000 Btuh (30 kW)
● 36 in (91 cm) for appliances > 100,000 Btuh (30 kW)
● 6 in (15 cm) for appliances ≤ 10,000 Btuh (3 kW)
● 9 in (23cm) for appliances > 10,000 Btuh (3 kW) and
≤ 50,000 Btuh (15 kW)
● 12 in (30 cm) for appliances > 50,000 Btuh (15 kW)
K = Clearance to a mechanical air
su
pp
l
y
inle
t
nihtiw fi evoba )mc 19( tf 3)m 38.1( tf 6
10 ft
(
3 m
)
horizontall
y
L = Clearance above paved sidewalk or paved
driveway located on public property
I yrogetaC( smetsys tfard lacinahcem rof )m 31.2( tf 7†)m 31.2( tf 7
appliances). Vents for Category II and IV appliances
cannot be located above public walkways or other
areas where condensate or vapor can cause a nuisance
or hazard*
M = Clearance under veranda, porch, deck, or
balcony
‡)mc 03( ni 21
* The manufacturer shall specify a minimum clearance or state "Not applicable" in the table and/or instructions.
i) The minimum distance from adjacent public walkways, adjacent buildings, openable windows, and building
openings shall not be less than those values specified in the National Fule Gas Code, ANSI Z223.1/NFPA 54,
and/or the Natural Gas and Propane Installation Code, CSA B149.1;
ii) Information on preventing blockage by snow; and
iii) Information on protecting building materials from degradation by flue gases.
† 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.
Notes:
1) In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.
2) In accordance with the current ANSI Z223.1/NFPA 54, Natural Fuel Gas Code.
3) If locally adopted installation codes specify clearances different than those illustrated, then
the most stringent clearance shall prevail.
Canadian Installations
1
U.S. Installations
2
3.E Locations for Vent Pipe Terminator