Rheem Guardian Warm Water Owner's Manual And Installation Instructions page 5

ABOUT YOUR WARM WATER SYSTEM
SAFETY WARNING
The function of this warm water system is to deliver water consistently at a safe temperature. This requires that:
1. This product is used within the specification limits given in this Owners Guide.
2. It is installed, commissioned, operated and maintained in accordance with the recommendations given in this
Owners Guide.
Note: Recommended maintenance guidelines are given in the MAINTENANCE section on page 24.
Ultimately, the user or attendant must exercise due diligence to ensure that the delivery of warm water is at a
stable, safe temperature. This is particularly important in such healthcare procedures as supervised bathing of
patients unable to respond immediately to unsafe temperatures.
MAINTENANCE ADVICE
Provided that the warm water system is installed, commissioned and maintained according to this Owners
Guide, the risk of malfunction, if not eliminated, is considerably reduced.
Malfunction of thermostatic mixing valves is almost always progressive in nature and may be detected by the
use of proper temperature checking and maintenance routines.
Note: Certain types of system design can result in the warm water system having excessive 'dead-legs' of pipe
work. Others allow an auxiliary cold water supply to be added to the mixed water from the main plant. Such
systems can disguise the onset of thermostatic mixing valve malfunction.
HOW DO I KNOW IF THE WARM WATER SYSTEM IS INSTALLED CORRECTLY?
Installation requirements are shown on pages 10 to 16. The warm water system must be installed:

by a qualified person, and

in accordance the installation instructions, and

in compliance with Standards AS/NZS 3500.4, AS/NZS 3000 and all local codes and regulatory authority
requirements.
In New Zealand the installation must also conform with the New Zealand Building Code.
VICTORIAN CUSTOMERS
Notice to Victorian Customers from the Victorian Plumbing Industry Commission. This water heater must be
installed by a licensed person as required by the Victorian Building Act 1993.
Only a licensed person will give you a Compliance Certificate, showing that the work complies with all the
relevant Standards. Only a licensed person will have insurance protecting their workmanship for 6 years. Make
sure you use a licensed person to install this water heater and ask for your Compliance Certificate.
DOES WATER CHEMISTRY AFFECT THE WARM WATER SYSTEM?
The warm water system is suitable for most public water supplies, however some chemistries may have
detrimental effects on the warm water system, its components and fittings.
If you are in a known harsh water area or you are not sure, have your water quality checked against the
conditions described on page 29.
HOW LONG WILL THE WARM WATER SYSTEM LAST?
The water heater is supported by a manufacturer's warranty (refer to page 31). There are a number of factors
that will affect the length of service the warm water system will provide. These include but are not limited to the
water chemistry, the water pressure, the water temperature (inlet and outlet), the water usage pattern and the
quality of maintenance. Refer to "Precautions" on page 4.
Note: Critical components within the system require periodic replacement (see MAINTENANCE on page 24)
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