22
10.
If a Series 746 Dry Accelerator is used, open the
¹⁄₄
-
turn vent ball valve on the accelerator.
10a.
Open the isolation ball valve on the Series 746 Dry
Accelerator.
10b.
Close the
¹⁄₄
-turn vent ball valve on the Series 746
Dry Accelerator. This will set the accelerator.
11.
Open the water supply main drain valve.
12.
Open the water supply’s main control valve slowly
until a steady flow of water flows from the open water
supply main drain valve.
13.
When a steady flow of water occurs, close the water
supply main drain valve.
Accelerator
¹⁄₄
-turn
Vent Ball Valve
Accelerator
Isolation
Ball Valve
Accelerator
¹⁄₄
-turn
Vent Ball Valve
• Take precautions when opening the water supply main control valve, since water
will flow from all open system valves.
Failure to do so could result in personal injury and property damage.
Water Supply
Main Drain
Valve
Water Supply's
Main Control
Valve
Water Supply
Main Drain
Valve
DISCONTINUED
PRODUCT
