78
SunTouch
®
Control System Installation and User’s Guide
Appendix
Emergency Shut-Off Switch (ESO3)
Emergency Shut-Off switch
The
SunTouch
®
Control System
can be used for commercial spa applications that require an Emergency
Shut-Off (ESO3) switch. It can be installed with new or existing pool and spa system. In the event of an
emergency, the spa can be shut off by pushing the red emergency button. This action interrupts power to the
filter pump, jet pump, an optional auxiliary pump, air blower, or equipment connected to AUX 1, or AUX 2.
Pulling the emergency button back out will return the pumps to normal operation, and shut off the alarm.
Location
Select a convenient location to mount the Emergency Shut-Off switch. Provide a double-gang electrical box.
The electrical box must be rated for outdoor use if the Emergency Shut-Off is located outside. Provide and
install a standard spring-wound timer for the jet pump and filter pump. Install cable, using plastic or metallic
conduit where cables run underground.
Low Voltage High Voltage
FILTER PUMP PUMP JET PUMP 2 (opt.)
Spring-wound timer not included.
jet pump(s)
filter pump
5
SPA JETS
10
15
OFF
TIMER
SUB PANEL
CIRCUIT BREAKERS
EMERGENCY SHUT OFF
ALARM
SunTouch®
Control System
Power Center
Commercial Application
See “Commercial Application using ESO3 and
SunTouch Control System
(Single Body System) on page
36 for information.