Installation Manual
120 Rinnai I-Series Condensing Boiler Solo Manual
3. Reinstall the boiler front panel using the four screws to secure it.
1. Check the normal operang sequence:
a. When you press the ON/OFF buon, the LED display will illuminate, the combuson fan
will begin to run if water is owing, and the spark will ignite the main burner.
b. This boiler has an automac ignion system. When the main burner has lit, the “In Use”
lamp will glow red and the spark will stop.
2. Visual inspecon of ame:
a. Check that the burner ames are operang normally. The ame can be seen through the
circular window above the burner. When operang normally, the burner ame should
burn evenly over the enre surface. The ame should be clear, blue, and stable. A yellow
ame is abnormal and maintenance is required (Figure 4).
SATISFACTORY
Front View
Blue Flame
UNSATISFACTORY
Flame
Rod
Flame
Rod
Yellow or
Green Flame
Figure 4
WARNING
Combuson analysis must be performed by a trained and
qualied professional.
To perform a combuson analysis:
1. Remove the boiler’s front panel by removing the four screws
that secure the panel.
2. Remove the clamp holding the combuson analysis port cap.
3. Remove the combuson analysis port cap and insert the gas
analyzer probe into the port.
4. Put the boiler into operaon in forced high re or low re as
necessary (see secon “12.7 Forced Hi/Lo Fire Modes”).
Measure CO
2
or O
2
, as applicable, in the exhaust system.
5. Aer measurement, remove the gas analyzer probe, place
the combuson analysis port cap back on, and reinstall the
clamp to secure the cap in place.
Insert gas analyzer probe into
combuson analysis port