Checking The O At Low Load (Step 2/3); Switching Off - Rinnai Q85SN Instructions D'installation Et D'entretien

13.3.1
i
NOTICE
a
checkpoint O figure 31.2
2
i
NOTICE
O check on low load (Step 2)
2
Low load
Minimal 0.5% higher than measured on full load
O
2
Values are valid with closed cover/air box.
Checking the O at low load (Step 2/3)
2
Step 2: O check on low load
2
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;
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
the measuring range shown below.
The O value at low load must lie higher than the O
2
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
With this the procedure has ended.
Choose the right O
Gas). Wrong adjustment may result causing property damage, personal injury
or death.
Natural Gas
Maximum 7.5%
The boiler will burn on low load (value on display in kW)
2
is shown (keep button pressed).
value according the kind of gas (Natural Gas or Propane
2
Minimal 0.2% higher than measured on full load
value in BTU/hr = x3415
check. The detected values must lie in
value at full load. The measuring
2
Propane Gas
Maximum 7.3%
63