Electrolux SBB800T-1 Installation Manual page 15

Maximum Vent Length Adjustment Dipswitches
maximum vent length based on the number of elbows. Adjust the dip switches according to the vent
condition noted in the tables below.
Note:
If this occurs, disconnect, then reconnect power to the water heater to reset the system.
elbows, maximum length = 3 ft. (0.9m)
3" Pipe
Vent length*
Number of
ft m 0
pieces**
0 0.00 0
1 0%
3 0.90 1
1
6 1.80 2 1
1
9 2.70 3
1
12 3.60 4
15 4.50 5 1 -5%
16 4.80 6 2 0%
18 5.40 6 2
2
21 6.30 7
2
22 6.60 8
24 7.20 8 2
2
27 8.10 9
2
28 8.40 10
2
30 9.00 10
2
33 9.90 11
2 -5%
34 10.20 12
* Not including the termination.
1 Short length using 3" (75mm) pipe
2
Long length using 3" (75mm) pipe
**Table assumes straight vent pieces are 3' (0.9m) each.
Shorter or longer vent pieces may also be used up to the maximum
allowed vent length.
The power must be unplugged
when adjusting the dip switches
to switch the air ow amount.
Elbows
1 2 3
2
1 0% 1 0% 0%
-5% 2
1 1
2
1 0% 2
-5% 2
1 2
2 0% 2
2
2 2
2
2 2 -5%
2
2 2
2 2
2 2 -5%
2
2
2 -5%
3
Short length using 4" (100mm) pipe
4
Long length using 4" (100mm) pipe
4" Pipe
Vent length*
Number of
ft m 0
pieces**
0 0.00 0
3 0%
3 0.90 1
3
6 1.80 2 3
3
9 2.70 3
3
12 3.60 4
15 4.50 5 3
18 5.40 6 3
21 6.30 7 3
3
24 7.20 8
3
27 8.10 9
30 9.00 10 3 -3%
4
33 9.90 11 -3%
4
36 10.80 12
4
39 11.70 13
4
42 12.60 14
4
45 13.50 15
4
48 14.40 16
4
51 15.30 17
4
54 16.20 18
4
57 17.10 19
4
60 18.00 20
4 -5%
63 18.90 21
* Not including the termination.
Refer to page 16 for max. vent lengths
when using termination TWHHORCONC.
Do not change any other dipswitches.
Vent length condition.
1 Short length using 3" (75mm) pipe
2
Long length using 3" (75mm) pipe
3 Short length using 4" (100mm) pipe
4
Long length using 4" (100mm) pipe
ON= OFF=
Elbows
1 2 3 4
3 0% 3 0% 3 0% 3 0%
3 3 3 3
3 3 3 3 -3%
3 3 3
4 -3%
3 3 3 4
-3%
3 3 4 4
-3%
4
3 3 4
-3%
3 4 4
4
-3%
3 -3% 4 4 4
4 4 4
-3% 4
4 4 4
4
4 4 4
4
4 4 4 4
4 4
4 4 -5%
4
4
4
4
4 4 -5%
4
4
4
4 -5%
4
4 -5%
7 8
.
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