The Model SR-500 is a Safety Vacuum
Release System (SVRS) which works by
monitoring the vacuum on the suction side
of the pool or spa pump. When a blockage
occurs in the main drain or skimmer a
sudden rise in vacuum will cause the SR-500
to shut down pump operation and activate
an audible alarm. The pump will remain off
with the alarm sounding until manually
reset.

Features and Benefits

• Complies with ASME/ANSI 112.19.17 as required by the International Building Codes (IBC) and the International Residential Codes (IRC)

• Meets all current codes and standards for SVRSs on new and existing pools and spas

• Can act as pool controller with programmable timer, or as stand alone SVRS working in conjunction with existing pool controller

• Newest state-of-art NEC microprocessor technology-- guaranteed reliability and performance

• Vacuum monitored 128 times per second -- rapid response and accurate readings

• Power monitored 50/60 times per second -- insures continuous power detection

• Can act as a pool and spa controller - with fully programmable 24 hour timer, or as stand alone SVRS working in conjunction with existing pool and spa controller

• Integrates with existing timer box - (for easy retrofit)

• Low vacuum sensing - (prevents cavitations or running the pump dry, eliminating costly equipment failure)

• 30 minute maintenance override - (for pool or spa service)

• Accessible extra dry contact – auxiliary equipment can be added

• Power back-up – insures settings and reading will be saved (30 minute rapid recharge)

• Display error readout - (prevents guessing during troubleshooting)

• Works on all size pumps

• Easy and trouble free installation - (no pipes to cut or glue)

• Turns off pump in milliseconds upon detecting sudden vacuum change

• Multiple audible alarm capabilities – allows for quicker alert to harmful situations

• Provides a layer of protection, reducing entrapment risk