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Rinnai 24 HW_CF OIM
TESTING
1� Before nal connection of the water heater purge gas, hot water and cold water supply lines. Debris or swarf
in either the gas or water supplies may cause damage�
2� Turn on gas and cold water supplies�
3� Test for water leaks and gas escapes near the unit�
4� Isolate gas supply� Remove test point screw located on the gas inlet connection and attach pressure gauge�
IMPORTANT
Conrm the control board dipswitch settings are set to the correct positions as required , i.e.
factory default or with a Sideways Flue Diverter tted, see "Sideways Flue Diverter" on page 19
for details�
5� Turn the power 'on' at the power point socket and turn on gas�
6� If water controllers are tted, ensure they are 'ON', with the maximum delivery temperature selected and open
ALL available hot water outlets�
If water controllers are not tted, simply open ALL available hot water outlets�
CAUTION
Ensure building occupants DO NOT have access to hot water outlets during this procedure�
7� Operate ALL other gas appliances at their maximum gas rate, in accordance with manufacturers instructions�
8� With all gas appliances in operation at maximum gas rate, the pressure should read between 1�13 - 3�0 kPa
on Natural Gas. On LPG the pressure should be 2.75 - 3.0 kPa. If the pressure is lower, the gas supply is
inadequate and the appliance will not operate to specication. It is the Installers responsibility to check the
gas meter, service regulator and pipe work for correct operation/sizing and rectify as required.
NOTE
The gas regulator on the appliance is electronically controlled and factory pre-set� Under normal
circumstances it DOES NOT need adjustment during installation�
9� Close hot water taps including the shower�
10� Inspect and clean the strainer located on the cold water inlet connection� This procedure may need to be
repeated to ensure the strainer remains clear, especially on new installations�
11� If water controllers are tted, it is necessary to test their operation through the complete range of functions
(refer to the Operation sections of this manual).
12� Conrm the hot water delivery temperature(s) using a thermometer. If controllers are tted, ensure
temperatures exceeding 50°C cannot be selected on bathroom or ensuite controllers� Refer to the section
‘Delivery Temperature’ below for more details�
13� After testing is completed, explain to the householder the functions and operation of the water heater and
water controllers (if tted). Ensure the "Installation Record" on page 25 is lled in and that this booklet is
handed to the customer� Reminding the customer to complete the Warranty Card and forward to Rinnai�
DELIVERY TEMPERATURE
50°C Compliant Models
"50°C Compliant" appliances are factory set to deliver a maximum temperature not exceeding 50°C. For ne
tuning they have an incremental adjustment mechanism that allows the installer to increase the appliance delivery
temperature incrementally from the 'Factory Set’ value to temperatures slightly exceeding 50°C� This is intended
to enable compensation for temperature losses in the pipe-work 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 ow 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�
COMMISSIONING
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