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6.
Press the 'preheat' button on the water controller. The 'preheat' indicator next to the preheat
button will glow indicating that the preheat system has been activated. A short time after the
'preheat' button is pressed, the water heater should turn on.
7.
Wait two minutes. This will allow the water in the pipework to be warmed.
8.
Open the warm water outlet furthest away from the water heater. The water should go warm in
a matter of seconds.
The waiting time for heated water delivery will vary depending on the size and layout
of the branch line.
NOTE
9.
Confirm that preheat operation has ceased the 'preheat' indicator next to the preheat button will
glow will have extinguished (preheat function is cancelled 5 minutes after activation). Then
inspect and clean the strainer located on the heating loop return connection. This procedure may
need to be repeated to ensure the strainer remains clear, especially on new installations.
10. The preheat function is cancelled 5 minutes after activation and the 'preheat' indicator will go out.
This is to conserve energy. To reactivate, simply repeat steps 6 - 8 above.
After testing is completed, explain to the householder the functions and operation of
the water heater and temperature controllers (if fitted). Ensure the "PRODUCT
IMPORTANT
RECORDS" on page 31 of this manual is filled in and that the booklet is handed to the
customer. Reminding the customer to complete the Warranty Card and forward to
Rinnai.
DELIVERY TEMPERATURE
For appliances with the label "Compliant to 50°C" on the front cover
"50°C Compliant" appliances are 'factory set' to deliver a maximum temperature not exceeding
50°C. However, they have an incremental adjustment mechanism that allows the installer to
increase the appliance delivery temperature incrementally from the 'Factory Set' value to
temperatures exceeding 50°C. This is intended to enable compensation for temperature losses in
the pipework between the water heater and any outlets and achieve the required temperature at
the outlet. Instructions for incremental temperature adjustment are located in the instruction
pocket inside the appliance front cover.
For all other models
Rinnai continuous flow water heaters are factory pre-set to various maximum delivery
temperatures depending on model and their intended application. For the majority of
applications, the factory pre-set temperature is appropriate. In the unlikely event it is not this
setting can be increased or decreased by the installer. Instructions for changing the maximum
delivery temperature are located in the instruction pocket inside the appliance front cover.
GAS PRESSURE SETTING
The regulator is electronically controlled and factory pre-set. Under normal circumstances it does not
require adjustment during installation.
Make adjustments only if the unit is not operating correctly and all other possible causes for incorrect
operation have been eliminated.
Instructions for Gas Pressure Setting are to be found in the instruction pocket located inside the
appliance front cover.
COMMISSIONING CHECK LIST
A commissioning check list is provided on the appliance front cover to enable the installer to step
through the correct commissioning procedure when installing a Rinnai Continuous Flow water heater.
The check list can also assist the installer to identify potential installation errors that may prevent the
appliance from operating correctly.
Rinnai Australia
COMMISSIONING
30
Installation Manual
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