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COMMISSIONING
After setting the minimum and maximum test point gas pressures:
•
Close the hot tap.
•
Remove the manometer and refit and tighten the test point screw and washer.
•
Open a hot tap again so the burners ignite.
•
Test for gas leaks.
•
Close the hot tap.
•
Switch off the electrical supply at the power outlet to the water heater.
•
Refit the front panel and screws to the water heater.
•
Refit the cover strips to the top and bottom of the front panel by inserting the two posts into the two
recesses and gently pushing into position.
Clearing Error Code
If an error code does appear on the LED display during the commissioning process, it will be necessary to
clear the error in order to complete the installation.
To clear an error code:
•
switch off the electrical supply at the power outlet to the water heater
•
check the gas isolation valve at the gas inlet to the water heater is fully open
•
wait five (5) minutes
•
switch on the electrical supply at the power outlet to the water heater
PRESET OUTLET TEMPERATURE SETTING
The factory preset outlet temperature setting of the Rheem 874820 model in-series gas booster is 60°C.
Note: AS 3498 requires that a water heater provides the means to inhibit the growth of Legionella bacteria in
potable water. This water heater has an in-series gas booster which can satisfy this AS 3498 requirement
provided the gas booster is energised, the booster preset outlet temperature setting is 70°C or higher and a
remote temperature controller or an EZiSET kit is not used.
"To Check Or Adjust The Preset Outlet Temperature Setting"
Refer to
Note: Consideration must be given to the delivery temperature to any ablution and public areas such as a
bathroom, ensuite or public amenities. Refer to
Temperature Zones Using A Temperature Limiting Device"
TO CHECK OR ADJUST THE PRESET OUTLET TEMPERATURE SETTING
The temperature setting will be displayed on the LED display. The preset outlet temperature settings are:
•
874820 model
It is necessary to have the electrical supply to the water heater switched on during stages of checking or
adjusting the preset outlet temperature setting procedure.
Warning: The removal of the front panel will expose 240 volt wiring. Take care not to touch wiring terminals.
The adjustment must be carried out by a qualified person.
Warning: This procedure will involve the adjustment of dip switches. Adjustment of a dip switch should
only be made with an insulated tool.
"Hot Water Delivery"
38°C, 40°C, 42°C, 43°C, 48°C, 50°C, 55°C, 60°C, 65°C, 70°C, 75°C
64
on page 64.
on page 30 and to
on page 30.
"Schematics of Two
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