Operating instructions

ABOUT YOUR WATER HEATER
6
HOTTER WATER INCREASES THE RISK OF SCALD INJURY
This water heater can deliver water at temperatures which can cause scalding. Check the water temperature
before use, such as when entering a shower or filling a bath or basin, to ensure it is suitable for the
application and will not cause scald injury.
We recommend and it may be required by regulations that an approved temperature limiting device be fitted
into the hot water piping to the bathroom and ensuite when an 884 series water heater is installed. This will
keep the water temperature below 50°C – AU or 55°C – NZ at the bathroom and ensuite. The risk of scald
injury will be reduced and if no controllers are installed and the preset outlet temperature setting has not
been adjusted below 55°C or if a Kitchen controller is installed, still allow hotter water to the kitchen and
laundry.
An 886 series water heater will not deliver temperatures exceeding 50°C, in accordance with AS 3498. There
is no requirement in AS/NZS 3500.4 to fit a temperature limiting device if this water heater is installed in
other than an early childhood centre, school, nursing home or a facility for young, aged, sick or disabled
people.
EZ-LINK SYSTEM DUAL INSTALLATION
Two continuous flow 884 series gas water heaters installed in an Ez-Link
TM
system dual installation
arrangement, when they are part of a circulated hot water flow and return system:
• AU - can only have a Kitchen controller installed, which MUST NOT be below 60°C to meet the
requirements of the Plumbing Standard.
• NZ – can have a Kitchen controller and / or Bathroom controller(s) installed and must also have an
approved UV sterilisation or chlorine disinfection system installed. This is required as the maximum
temperature controller settings are less than 60°C, and the requirements of the Plumbing Standard must
be met.
Warning: The controller must be left on during periods the circulator may operate.
PRECAUTIONS
Where damage to property can occur in the event of the water heater leaking, the water heater must be
installed over a safe tray. Construction, installation and draining of a safe tray must comply with
AS/NZS 3500.4 and all local codes and regulatory authority requirements.
The water heater must be maintained in accordance with the Owner’s Guide and Installation Instructions.
Refer to “General Maintenance” on page 7, “Minor Six Month Maintenance” on page 7 and “Major Five Year
Service” on page 8.
If this water heater is to be used where an uninterrupted hot water supply is necessary for your application or
business you should ensure that you have back up redundancy within the hot water system design. This
should ensure the continuity of hot water supply in the event that this water heater were to become
inoperable for any reason. We recommend you seek advice from your plumber or specifier about your needs
and building back up redundancy into your hot water supply system.
WARNING
This water heater is only intended to be operated by persons who have the experience or the knowledge and
the capabilities to do so. This water heater is not intended to be operated by persons with reduced physical,
sensory or mental capabilities i.e. the infirm, or by children. Children should be supervised to ensure they do
not interfere with the water heater.
The water heater uses 240 Volt AC electrical power for operation of the control systems and the combustion
fan. The removal of the front panel will expose 240 V wiring. It must only be removed by a qualified person.
The power lead from the water heater must be plugged into a weatherproof electrical outlet. Take care not to
touch the power plug with wet hands.
Two overflow drain slots are located immediately under the flue outlet. Fluid discharging from these slots
indicates the drain line has become obstructed and a service call must be made. Phone Rheem Service or
their nearest Accredited Service Agent / Centre to arrange for an inspection.