GLOW T-150, Installation & Operation Manual

Page: 41 / 88

Glow T150 & T180
Tankless Condensing Water Heater
41
Canadian Installations
1
US Installations
2
E Clearance to unventilated soffit
* *
F Clearance to outside corner * *
G Clearance to inside corner * *
H Clearance to each side of centre
line extended above meter /
regulator assembly
* *
I Clearance to service regulator vent
outlet
Above a regulator within
3 ft (91 cm) horizontally of
the vertical center line of
the regulator vent outlet to a
maximum vertical distance
of 15 ft (4.5 m)
*
J Clearance to non mechanical air
supply inlet or combustion air inlet
to any other appliance
6 in (15 cm) for appliances
≤ 10,000 BTUh (3kW),
12 in (30cm) for appliances
> 10,000 BTUh (3kW) and
< 100,000 BTUh) (30kW),
36 in (91 cm) for appliances
> 100,000 BTUh (30kW)
6 in (15 cm) for appliances
≤ 10,000 BTUh (3kW),
9 in (23 cm) for appliances
>10,000 BTUh (3kW) and
≤ 50,000 BTUh) (15kW),
12 in (30 cm) for appliances
> 50,000 BTUh (15kW)
K Clearance to mechanical air supply
inlet 6 ft (1.83 m)
3 ft (91 cm) above if within
10 ft (3 m) horizontally
L Clearance above paved sidewalk
or paved driveway located on
public property
7 ft (2.13 m)
+
*
M Clearance under veranda, porch
deck or balcony 12 in (30 cm)
++
*
* For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, one of the following shall be indicated:
A) a minimum clearance value determined by testing in accordance with Clause 5.21, Draft hoods, or
B) a reference to the following footnote:
“Clearance in accordance with local installation codes and the requirements of the gas supplier.”
+ A vent shall not terminate directly above or 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, National Fuel Gas Code
Table 3.4 (continued)