Recirculation Instructions - Bradley EFX 125 Instrucciones Para La Instalacion Y Mantenimiento

Bradley EFX 125 Thermostatic Mixing Valve with Optional Cabinet
Model S19-2300 Series
Recirculation Diagram
CHECK VALVE (TYP)
COLD
WATER
WATER
HEATER

Recirculation Instructions

Note: Recirculating the water in the system provides constant regulation of the water temperature. Flush the
supply lines thoroughly after completing installation. Close off all fixtures and label them as not available
for use during the recirculating process.
1. Turn off the recirculating pump and turn on the water supply (a water flow rate of 20 GPM is required).
2. Let the water run through the system until a consistent temperature is obtained. If you do not obtain the
required temperature, refer to procedure #6 on page 3 for temperature readjustment.
3. As soon as the water reaches the proper temperature, turn on the recirculating pump (make certain the
proper system temperature has been achieved before proceeding).
4. Check the water temperature at the return pump. If the temperature exceeds the appropriate level by
2°F, adjust the temperature high-limit switch (this will turn off the pump). Wait until the return water
temperature is 5°F below the appropriate level and adjust the low-limit switch (this will turn the pump
back on).
5. Turn the balancing valve until it is completely open.
6. Turn off all fixtures and make sure there is no water running through the system (the cold inlet pipe
should feel warm to the touch).
7. Let the system run for thirty minutes or longer without water. If, after thirty minutes, the water temperature
increases, you may readjust the temperature by slowly closing the balancing valve until the appropriate
temperature is reached.
6
COLD
HEAT
TRAP
28" DROP
ALTERNATE
RECIRCULATION
(MORE THAN 5 GPM)
HOT
BALANCING
VALVE
(TYP)
STORAGE
TANK
4-12-2006
Installation and Maintenance Instructions
TEMPERED
WATER
FLOW
TO FIXTURES
CHECK VALVE
THERMOMETER
RETURN FLOW
RECIRCULATED
TEMPERED
RECIRCULATING
PUMP
Bradley Corporation • 215-1594; EN 05-914A
TEMPERATURE
SWITCH
(AQUASTAT)
WATER