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9
SYSTEM INSTALLATION DIAGRAMS
NOTE
: The 280 model is factory set at 50-100 PSI� To be used in conjunction with an air maintenance device (not included)�
S281R-LD1-115PD/S110R-LD1-115PD
No AMD Permitted
S280R-LD1-115P
AMD Required
Dry Pipe Valve
System pressure varies
depending on size of system
Water in system
Air Pressure
Maintenance Device
(Not Included)
Air Source
Braided Flex Hose
(Available Accessory)
Dry Pipe Valve
System pressure varies
depending on size of system
Water in system
Adjustable: 5-55 PSI
Braided Flex Hose
(Available Accessory)
Air Source
Air Source
Check Valve
Digital AMD eliminates the need for air pressure maintenance device.
Outlet
(S281)
(S110)