Справочник Пользователя для Rheem Gas Heavy Duty Water Heater Models 265 Litre and 275 Litre

19 

 

 

 
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 

20. 

 
Refer also to 

“Recirculation System”

 on page 43. 

 
Temperature Limiting Device 
A temperature limiting device cannot be installed in circulated hot water flow 
and return pipe work unless it is specifically designed to do so, such as the 
Rheem Guardian warm water system. 
 
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.