Piping details, Acorn controls, Sfet installation & operation manual – Acorn ET71 VALVE User Manual
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Acorn Controls
Division of Acorn Engineering Company
®
, A member of Morris Group International
™
Date: 04/01/14
SFET Installation & Operation Manual
PIPING DETAILS:
T
C
CHECK VALVE
BALANCING VALVE
TEMP/PRESSURE GAUGE
CIRCULATOR
FLOW DIRECTION
C
SELECT FLOW RATE NECESSARY TO ENSURE MIXING VALVE IS
OPERATING AT AN ASSE 1017 MINIMUM CERTIFIED FLOWRATE.
SEE LITERATURE.
TYPICAL CONTINUOUS RECIRCULATION
NOTE: TO BALANCE THE SYSTEM BEGIN WITH DIVERTING 80% OF THE
RETURN WATER TO COLD SIDE OF THE TEMPERING VALVE (20% TO THE
HOT WATER SOURCE). CONTINUE ADJUSTING UNTIL SYSTEM IS FULLY
BALANCED.
WATER
HEATER
C
C
T
T
EXPANSION
TANK
HIGH TEMPERATURE
HOT WATER FIXTURES
EMEGENCY
FIXTURES
HEAT
TRAP
ET71 SERIES
VALVE
BALANCING
VALVE
LOW TEMP
FIXTURE
RETURN
HIGH TEMP
FIXTURE RETURN
T
C
CHECK VALVE
BALANCING VALVE
TEMP/PRESSURE GAUGE
CIRCULATOR
FLOW DIRECTION
C
SELECT FLOW RATE NECESSARY TO ENSURE MIXING VALVE IS
OPERATING AT AN ASSE 1017 MINIMUM CERTIFIED FLOWRATE.
SEE LITERATURE.
COLD
WATER
SUPPLY
TYPICAL RECIRCULATION WITH AQUASTAT
NOTE: TO BALANCE THE SYSTEM BEGIN WITH DIVERTING 80% OF THE
RETURN WATER TO COLD SIDE OF THE TEMPERING VALVE (20% TO THE
HOT WATER SOURCE). CONTINUE ADJUSTING UNTIL SYSTEM IS FULLY
BALANCED.
ADJUSTABLE
AQUASTAT
WATER
HEATER
C
C
T
T
EXPANSION
TANK
HIGH TEMPERATURE
HOT WATER FIXTURES
EMEGENCY
FIXTURES
HEAT
TRAP
ET71 SERIES
VALVE
BALANCING
VALVE
LOW TEMP
FIXTURE
RETURN
HIGH TEMP
FIXTURE RETURN
COLD
WATER
SUPPLY
Manual #7802-113-000