A.O. Smith Innovo 12-160 Installation, Service & Maintenance Manual page 55

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0312266_INNOVO_UKUK_V3.0, 2017-02-10
6. If necessary, create a heat demand:
- Use a hot water draw-off point to tap water, or
- Raise the setpoint of the water temperature, refer to Set the water
temperature (see section 4.2.2).
7. Wait until the measured value on the CO
can take several minutes.
8. Compare the full load measured value to the value from the appendix Gas details
(see section 13.3).
The CO value at full load must be within ±1.0 vol% of the CO
2
table.
Caution
When the CO value is not correct, refer to General errors (see section
2
12.1.1), CO value (at full load) is not correct.
2
Do not use the water heater when the CO
caused by the restrictor, venturi, venting system or gas category:
• Switch off the appliance.
• Turn off the gas supply.
• Put the cover back on the water heater.
• Contact your supplier.
9. Set parameter 201 to Lo, refer to section Settings (see section 10).
10. Wait until the measured value on the CO
can take several minutes.
11. Compare the measured value to the value measured under full load.
The CO value at partial load must be within ±0.3 vol% of the CO
2
under full load.
12. If necessary, use a hex driver to adjust the adjuster screw until the CO
correct.
a. Turn the screw clockwise for a higher CO
b. Turn the screw anticlockwise for a lower CO
13. If applicable, set the temperature value back to the original value (parameter 002).
14.
Set parameter 201 to dIS, refer to Settings (see section 10).
15. Press [RESET]. The water heater goes into OFF mode.
16. Set the control switch on the side of the water heater to 0 to turn off the water
heater.
17. Remove the measurement probe of the CO
cap (1) back on the nipple (2).
18. Shut off the gas supply.
Fig. CO value
2
2
meter remains stable for some time. This
2
value is not correct and this is not
2
meter remains stable for some time. This
2
2
meter from the test nipple and place the
2
1
value stated in the
2
value measured
2
value is
2
value.
value.
2
1. Cap
2. Test nipple
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