Installation & Servicing Instructions Rinnai E-Series
62
12.3.1
Checking the O
2
at low load (Step 2/3)
Step 2: O
2
check on low load
Setting the low load
The low load of the boiler can be set by you as follows:
- Press the
button until the minimum value (in kW) is achieved;
The boiler will burn on low load (value on display in kW)
value in BTU/hr = x3415
When adjusting from max. to min. load it is advisable to stop at medium load
to allow the boiler to stabilize. Adjusting quickly from max. to min. could force
the boiler into an error state.
- Use the measuring tool to carry out a O
2
check. The detected values must lie in
the measuring range shown below.
The O
2
value at low load must lie higher than the O
2
value at full load. The measuring
procedure must be carried out, until a constant measuring result is achieved. Please
take up contact with Rinnai, if the values should lie outside of the applicable tolerances.
Switching off
- Press the - button until
is shown (keep button pressed).
With this the procedure has ended.
Choose the right O
2
value according the kind of gas (Natural Gas or Propane
Gas). Wrong adjustment may result causing property damage, personal injury
or death.
NOTICE
i
O
2
check on low load (Step 2)
Low load
Natural Gas
Propane Gas
O
2
Minimal 0.5% higher than measured on full load
Minimal 0.2% higher than measured on full load
Maximum 7.5%
Maximum 7.3%
Values are valid with closed cover/air box.
checkpoint O
2
fi gure 27
NOTICE
i
a
