Watts Aerco INN 600N, Руководство пользователя

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Innovation Water Heaters
– Edge [i] Controller
Venting and Combustion Air Design Guide
TAG-0090_A
•
GF-5056
•
2/20/2020
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TABLE 2: Summary of Minimum Required Air Openings
For Mechanical Room Combustion & Ventilation Air
Model
Two Openings
from within the
Building, Each
having an
opening, in
2
(cm
2
)
Two Direct or
Vertical Duct
Openings, Each
having an
opening, in
2
(cm
2
)
Two Horizontal
Ducts, Each
having an
opening, in
2
(cm
2
)
Single
Permanent
Opening, in
2
(cm
2
)
INN 600N 600 in
2
(0.39 m
2
) 150 in
2
(0.97 m
2
) 300 in
2
(0.19 m
2
) 200 in
2
(0.13 m
2
)
INN 800N 800 in
2
(0.52 m
2
) 200 in
2
(0.13 m
2
) 400 in
2
(0.26 m
2
) 270 in
2
(0.17 m
2
)
INN 1060N 1060 in
2
(0.68 m
2
) 265 in
2
(0.17 m
2
) 530 in
2
(0.34 m
2
) 355 in
2
(0.23 m
2
)
INN 1350N 1360 in
2
(0.87 m
2
) 340 in
2
(0.22 m
2
) 680 in
2
(0.44 m
2
) 455 in
2
(0.29 m
2
)
2.4. Combustion Air Pipe Sizing
In computing the pressure loading effect of the combustion piping system, an equivalent straight-
length of piping is used. This equivalent length of piping is the combined sum of all equivalent
lengths of piping and piping components used in construction, including:
1. All straight horizontal and vertical pipe sections.
2. All equivalent lengths of fittings, bends and end terminations.
3. All equivalent lengths associated with extrance or transition effects, for example a
sudden expansion or contraction.
Table 3 provides the required combustion pipe size for the Innovation-Edge water heaters along
with some rule-of-thumb guidelines for estimating the equivalent lengths of common piping
components.
TABLE 3: Rule-of-Thumb Maximum Combustion Air Run Lengths
Model No.
Minimum
Pipe
Diameter
Maximum
Length
Equivalent
Ft. (m)
Equivalent Pipe Lengths
Examples
Sharp 90°
Elbow
Equiv. Ft (m)
45° Elbow
Equiv. Ft (m)
INN 600N, INN 800N,
INN 1060N, INN
1350N
6
”
(152 mm)
*140 ft.
(42.7 m)
10 ft.
(3.05 m)
5 ft.
(1.5 m)
* NOTE:
The maximum combined pressure drop of the exhaust and intake-air vents is 140 equivalent-
feet (42.7 m) for
6”
(152 mm) pipe (all models). For the INN600N using
4”
(102 mm) pipe the
maximum combined pressure drop of exhaust and intake-air vents is 80 (24.4 m) equivalent-
feet. See Section 3.4.