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TESTING WATER HEATER OPERATION
1.
Before final connection of the water heater purge gas, hot water, cold water and heating loop
lines. 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.
5.
Turn the power 'on' at the power point socket and turn on gas.
6.
Ensure that the water controller(s) have been connected and are turned 'ON' and select the
maximum available delivery temperature and open ALL available hot water outlets.
Ensure building occupants do not have access to hot water outlets during this
procedure. DO NOT press the preheat button during this procedure.
CAUTION
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 specification. It is the
Installers responsibility to check the gas meter, service regulator and pipe work for correct
operation/sizing and rectify as required. Note that 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 outlets.
10. Inspect and clean the filter located on the cold water inlet connection. This procedure may need
to be repeated to ensure the filter remains clear, especially on new installations.
11. Confirm correct water controller operation through the complete range of functions except for the
preheat function (refer to the Operation sections of this manual).
12. Confirm hot water delivery temperature(s) using a thermometer. Ensure that temperatures
exceeding 50º C cannot be selected on controllers that are fitted to the bathrooms or ensuites.
Refer "Delivery Temperature" page 30 for more details.
TESTING SMARTSTART (PREHEAT) SYSTEM OPERATIONS
1.
Turn the power 'off' at the power point socket.
2.
Open all available hot water outlets again until water from all outlets is cold. Then close all hot
water outlets.
Ensure building occupants do not have access to hot water outlets during this
procedure.
CAUTION
3.
Open the cold water inlet bleed valve and the pump bleed valve (See "GENERAL SYSTEM
COMPONENTS" on page 19, items 5 and 6) until all air pockets are released and a steady
stream of water is discharged.
4.
Turn the power 'on' at the power point socket.
5.
Turn a water controller 'ON' and select the maximum delivery temperature.
Ensure building occupants do not have access to hot water outlets during this
procedure.
CAUTION
Rinnai Australia
COMMISSIONING
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Installation Manual
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