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7/23/2019 Functionarea Instalatiei Sprinkler
1/11
AIR UNDER PRESSURE OPEN TO ATMOSPHERE WATER UNDER PRESSURE PRIME WATER
Control Panel
HeatDetector
Low AirPressure
WaterFlow
HeatDetector
Low Air Pressure Switch
ManualEmergency
Station
DifferentialChamber
AA-R Actuator
DRAIN VALVE(from rear of valve)
SolenoidValve
Drain
STEP 1: The system is shown
ready for operation
ClapperAssembly
Return
Next
7/23/2019 Functionarea Instalatiei Sprinkler
2/11
AIR UNDER PRESSURE OPEN TO ATMOSPHERE WATER UNDER PRESSURE PRIME WATER
Control Panel
HeatDetector
Low AirPressure
WaterFlow
HeatDetector
Low Air Pressure Switch
ManualEmergency
Station
DifferentialChamber
AA-R Actuator
DRAIN VALVE(from rear of valve)
SolenoidValve
Drain
STEP 2: The heat detector istriggered by a fire, it sends a
signal to the control panel.The control panel opens the
solenoid valve and allowspressurized water to flow to
the actuator. The air under
pressure stops the systemfrom activating.
ClapperAssembly
Return
NextPrev
7/23/2019 Functionarea Instalatiei Sprinkler
3/11
AIR UNDER PRESSURE OPEN TO ATMOSPHERE WATER UNDER PRESSURE PRIME WATER
Control Panel
HeatDetector
Low AirPressure
WaterFlow
HeatDetector
Low Air Pressure Switch
ManualEmergency
Station
DifferentialChamber
AA-R Actuator
DRAIN VALVE(from rear of valve)
SolenoidValve
Drain
STEP 3: When the fire activates
a sprinkler, the air underpressure is released.
ClapperAssembly
Return
NextPrev
7/23/2019 Functionarea Instalatiei Sprinkler
4/11
AIR UNDER PRESSURE OPEN TO ATMOSPHERE WATER UNDER PRESSURE PRIME WATER
Control Panel
HeatDetector
Low AirPressure
WaterFlow
HeatDetector
Low Air Pressure Switch
ManualEmergency
Station
DifferentialChamber
AA-R Actuator
DRAIN VALVE(from rear of valve)
SolenoidValve
Drain
STEP 4: The in air pressure allowsthe actuator to open which willlower the water pressure in the
differential chamber allowing theplunger to release the clapper.
ClapperAssembly
Return
NextPrev
7/23/2019 Functionarea Instalatiei Sprinkler
5/11
AIR UNDER PRESSURE OPEN TO ATMOSPHERE WATER UNDER PRESSURE PRIME WATER
Control Panel
HeatDetector
Low AirPressure
WaterFlow
Heat
DetectorLow Air Pressure Switch
ManualEmergency
Station
DifferentialChamber
AA-R Actuator
DRAIN VALVE(from rear of valve)
SolenoidValve
Drain
STEP 5: The clapper opens allowingwater to spray out of the sprinkler.Water will only spray out of
sprinklers activated by the fire.
ClapperAssembly
Return
NextPrev
7/23/2019 Functionarea Instalatiei Sprinkler
6/11
AIR UNDER PRESSURE OPEN TO ATMOSPHERE WATER UNDER PRESSURE PRIME WATER
Control Panel
HeatDetector
Low AirPressure
WaterFlow
Heat
DetectorLow Air Pressure Switch
ManualEmergency
Station
DifferentialChamber
AA-R Actuator
DRAIN VALVE(from rear of valve)
SolenoidValve
Drain
STEP 6: The sprinkler willcontinue to spray
ClapperAssembly
Return
NextPrev
7/23/2019 Functionarea Instalatiei Sprinkler
7/11
AIR UNDER PRESSURE OPEN TO ATMOSPHERE WATER UNDER PRESSURE PRIME WATER
Control Panel
HeatDetector
Low AirPressure
WaterFlow
HeatDetector
Low Air Pressure Switch
ManualEmergency
Station
DifferentialChamber
AA-R Actuator
DRAIN VALVE(from rear of valve)
SolenoidValve
Drain
STEP 7: After fire is under control,
valve is manually closed to cut offthe water supply, the air source
is isolated.
ClapperAssembly
Return
NextPrev
7/23/2019 Functionarea Instalatiei Sprinkler
8/11
AIR UNDER PRESSURE OPEN TO ATMOSPHERE WATER UNDER PRESSURE PRIME WATER
Control Panel
HeatDetector
Low AirPressure
WaterFlow
HeatDetector
Low Air Pressure Switch
ManualEmergency
Station
DifferentialChamber
AA-R Actuator
DRAIN VALVE(from rear of valve)
SolenoidValve
Drain
STEP 8: The main drain is opened
to drain the system.
ClapperAssembly
Return
NextPrev
7/23/2019 Functionarea Instalatiei Sprinkler
9/11
AIR UNDER PRESSURE OPEN TO ATMOSPHERE WATER UNDER PRESSURE PRIME WATER
Control Panel
HeatDetector
Low AirPressure
WaterFlow
HeatDetector
Low Air Pressure Switch
ManualEmergency
Station
DifferentialChamber
AA-R Actuator
DRAIN VALVE(from rear of valve)
SolenoidValve
Drain
STEP 9: The system is drained.
ClapperAssembly
Return
NextPrev
7/23/2019 Functionarea Instalatiei Sprinkler
10/11
AIR UNDER PRESSURE OPEN TO ATMOSPHERE W ATER UNDER PRESSURE PRI ME W ATER
Control Panel
HeatDetector
Low AirPressure
WaterFlow
HeatDetector
Low Air Pressure Switch
ManualEmergency
Station
DifferentialChamber
AA-R Actuator
DRAIN VALVE(from rear of valve)
SolenoidValve
Drain
STEP 10: To reset the valve, the
face plate is removed and debrisis removed from the gaskets.
ClapperAssembly
An external reset switchis also available
Return
NextPrev
7/23/2019 Functionarea Instalatiei Sprinkler
11/11
AIR UNDER PRESSURE OPEN TO ATMOSPHERE WATER UNDER PRESSURE PRIME WATER
Control Panel
HeatDetector
Low AirPressure
WaterFlow
HeatDetector
Low Air Pressure Switch
ManualEmergency
Station
DifferentialChamber
AA-R Actuator
DRAIN VALVE(from rear of valve)
SolenoidValve
Drain
STEP 11: The valve is reset andreturned to service. Activated
sprinklers are replaced, the airand water pressure are restored.
ClapperAssembly
Return
Prev