Installation instructions
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Altitude | Total | Minimum | Maximum | Maximum |
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(above sea | equivalent | power fan | power fan speed | power fan speed |
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level) | vent length1) | speed (P2) | (P1) | (P1) |
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0 - 2000 ft | 5.5 - 32 ft | 7 | No | No |
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(0 - 610 m) |
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| modification required | modification required |
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33 - 57 ft | 8 |
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| For operation at elevations | |
| 5.5 - 32 ft | 8* | 48* | 47* | ||
2000 - 4500 ft | above 2,000 ft (610 m) the | |||||
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| equipment ratings shall be | ||
(610 - 1372 m) |
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| reduced at the rate of 4% for | |
33 - 57 ft | 8* | 49* | 48* | |||
| each 1,000 ft (305 m) above sea | |||||
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4500 - 8000 ft | 5.5 - 32 ft | 9* | 49* | 48* |
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(1372 - 2439 m) |
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33 - 57 ft | 9* | 50* | 49* |
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* Above 2000 ft, CO2 levels must be checked with a combustion gas analyzer, see section 6.4 for instructions.
Table 12 Fan speed adjustment
1)Full equivalent length (inlet + outlet piping + fittings)
Adjusting minimum power fan speed (P2)
To select fan speed:
BPress ON/OFF button into OFF.
BPress and hold "Program" button 
and press ON/OFF button to turn appliance ON.
Adjusting maximum power fan speed (P1)
To select fan speed:
BPress ON/OFF button into OFF.
BPress and hold "Program" button 
and press 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.
BPress 
or 
to choose the fan speed suitable with your installation, see Table 12.
BPress and hold (± 5 sec.) “Program” button 
until the display flashes, then the selected value is memo- rized.
Fig. 23
B As soon as '188' is displayed, release "Program" but- | ||||
ton | , and the display reads P2. |
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B Press the minus button | to display P1. |
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B Press “Program” button | to enter P1 adjustment. | |||
The current setting will appear on the display. |
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B Press | or | to choose the fan speed suitable | ||
with your installation, see Table 12. |
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B Press and hold (± 5 sec.) “Program” button | until | |||
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Do not set P2 to greater then 9.
the display flashes, then the selected value is memo- |
rized. |
Proceed directly to Section 6.4 to confirm
iCO2 values are within range.
18 | 6 720 608 542 |
