Справочник Пользователя для Rheem 300 series

16 

CIRCULATED HOT WATER FLOW AND RETURN SYSTEM 
If a Rheem water heater is to be installed as part of a circulated hot water flow 
and return system, a storage water heater able to provide a hot water outlet 
temperature of at least 60

°C must be used. Note: The thermostat must always 

be set to at least 60

°C. Refer to the 

diagram on page 

16. 

 
Temperature Limiting Device 
A temperature limiting device cannot be installed in circulated hot water flow 
and return pipe work. The tempered water from a temperature limiting device 
cannot be circulated. Where a circulated hot water flow and return system is 
required in a building, a temperature limiting device can only be installed on a 
dead leg, branching off the circulated hot water flow and return pipe. 
 
If circulated tempered water were to be returned back to the water heater, 
depending on the location of the return line connection on the water supply line 
to the water heater, then either: 

• 

water will be supplied to the cold water inlet of the temperature limiting 
device at a temperature exceeding the maximum recommended water 
supply temperature, or 

• 

when the hot taps are closed no water will be supplied to the cold water 
inlet of the temperature limiting device whilst hot water will continue to be 
supplied to the hot water inlet of the temperature limiting device. 

These conditions may result in either water at a temperature exceeding the 
requirements of AS/NZS 3500.4 being delivered to the hot water outlets in the 
ablution areas, or the device closing completely and not delivering water at all, 
or the device failing. Under either condition, the operation and performance of 
the device cannot be guaranteed.