Acorn ET71 VALVE - Manual (Page 6)

Page 6 of 7
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