Checking The O - Rinnai E110CN Installation & Servicing Instructions Manual

12.4 Checking the O

i
NOTICE
i
checkpoint CO
2
figure 25
i
NOTICE
adjustment screw CO
2
figure 26
2
percentage is factory-set. This has to be checked at commissioning,
The O
2
maintance and faults.
This can be checked by means of the following procedure:
- Remove the black cover of the gas valve by unscrewing the sealed screw.
- Put the boiler into operation and take care that it can deliver its heat;
Tip: If there is no demand for heat on CH, turn the hot water tap completely open
and measure the O .
2
- Press the MODE-button for 5 seconds.
- The display will show COdE followed by an arbitrary number;
- Select by means of the
- Press the Store-button to confirm the code (code blinks 1 x);
- Press the MODE-button until SERV is shown;
- Press the STEP-button once until 1 is shown;
alternately 1 and OFF will be shown.
- Calibrate the O meter ;
2
- Place the probe of the O
- Press the button until the maximum value (in kW) is achieved;
The boiler will burn on full load (value on display in kW)
- Check the O percentage:
2
Natural Gas: full load:
min. load:
Propane: full load:
min. load:
Example:Full load set on 4.6% O
be 4.8% or greater.
Choose the right O value according the kind of gas (Natural Gas or Propane
2
Gas). Wrong adjustment may result causing property damage, personal
injury or death.
- Let the O meter do its measuring procedure.
2
- Adjust, if necessary, the adjustment screw to correct the O
(see fig. 26).
Ending the O measuring procedure:
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- Press the - button until OFF is shown (keep button pressed).
With this the procedure has ended..
- Replace the black cover on the gas valve and fix it with the screw.
or the button the code C123;
meter into the check point (see fig. 25);
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between 4.4% and 4.7%
setting of full load +0.2% or greater
between 4.8% and 5.1%
setting of full load +0.2% or greater
(natural gas) then the minimum load setting should
2
value in BTU/hr = x3415
value
2
59