Bosch GWH 2700 ES LP User Manual page 18

Installation instructions
Altitude Total
(above sea equivalent
level) vent length
5.5 - 32 ft
0 - 2000 ft
(0 - 610 m)
33 - 57 ft
5.5 - 32 ft
2000 - 4500 ft
(610 - 1372 m)
33 - 57 ft
5.5 - 32 ft
4500 - 8000 ft
(1372 - 2439 m)
33 - 57 ft
* Above 2000 ft, CO levels must be checked with a combustion gas analyzer, see section
2
Table 12 Fan speed adjustment
1) Full equivalent length (inlet + outlet piping + fittings)
Adjusting minimum power fan speed (P2)
To select fan speed:
B Press ON/OFF button into OFF.
B Press and hold "Program" button
ON/OFF button to turn appliance ON.
Fig. 22
B As soon as '188' is displayed, release "Program"
button , and the display should read P2.
B Press or to choose the fan speed suitable
with your installation, see Table 12.
B Press and hold (± 5 sec.) "Program" button
the display flashes, then the selected value is memo-
rized.
Do not set P2 to greater then 9.
i
18
Natural Gas
Minimum Maximum
power fan power fan speed
1)
speed (P2)
7
modification required
8
8*
8*
9*
9*
and press
until
Liquid propane
Maximum
power fan speed
(P1) (P1)
No No
modification required
48* 47*
49* 48*
48*
49*
50* 49*
6.4
Adjusting maximum power fan speed (P1)
To select fan speed:
B Press ON/OFF button into OFF.
B Press and hold "Program" button
ON/OFF button to turn appliance ON.
Fig. 23
B As soon as '188' is displayed, release "Program" but-
ton , and the display reads P2.
B Press the minus button
B Press "Program" button
The current setting will appear on the display.
B Press or to choose the fan speed suitable
with your installation, see Table 12.
B Press and hold (± 5 sec.) "Program" button
the display flashes, then the selected value is memo-
rized.
Proceed directly to Section 6.4 to confirm
i
CO values are within range.
2
For operation at elevations
above 2,000 ft (610 m) the
equipment ratings shall be
reduced at the rate of 4% for
each 1,000 ft (305 m) above sea
level
for instructions.
and press
to display P1.
to enter P1 adjustment.
until
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