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