Special adjustment for measuring and adjusting CO2 levels
D. Returning to Service:1.Return slotted cover to original position.
2.Reinstall Torx cover.
3.Remove CO2 analyzer probe and reinstall flathead screw in exhaust collar.
4. Turn ON/OFF switch to the OFF (O) position and then back to the ON (I) position.
5. Heater is ready for normal operation.
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| Without Front | With Front |
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| Cover | Cover |
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| Nat. Gas | Nat. Gas |
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max. input | P1 | 9.1 ± 0.1 % | 9.7 ± 0.1 % |
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min. input | P2 | 9.4 ± 0.1 % | 9.7 ± 0.1 % |
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| LP Gas | LP Gas |
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max. input | P1 | 10.1 ± 0.1 % | 10.7 ± 0.1 % | Fig. 45 | ||
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min. input | P2 | 10.4 ± 0.1 % | 10.7 ± 0.1 % |
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* Final reading must be confirmed with the front cover |
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on, CO2 levels increase when the cover is installed. |
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Table 9 |
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| Final Readings |
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P2 CO2 Reading: |
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| % CO2 |
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P1 CO2 Reading: |
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| % CO2 |
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Fig. 44
6 720 608 263 | 33 |