Choose OnCommand when you don’t need an
electrical subpanel on your pool pad. OnCommand brings the luxury of
automating pool, spa and other backyard functions to pool owners who
thought that automation was unaffordable. If you don’t need a power sub
panel on your pool pad, this is your unit. It’s the perfect retrofit
solution for pool owners who want to add automation to their existing
pools.
Automate basic pool and spa
functions and save you up to 70% on your pool’s energy costs.
Automating your variable-speed pump can save you up to $1,200 a year -
maximizing water flow while minimizing energy consumption, so both you
and your energy bill can relax.
http://www.hayward-pool.com/pdf/literature/Automation-Controls-Brochure.pdf