| 摘要 |
A water circulating system, such as a spa system, is disclosed having a f low control feature. In one embodiment, the spa system includes a tub, a pum p assembly and a controller. The pump assembly includes a BLDC motor and cir culates water from the tub's outlet port to its inlet port. The controller s ets the speed of the BLDC motor to any speed within the speed range of the B LDC motor in response to a user input to adjust the flow rate of the water t o the inlet port of the tub. The spa system may also produce at least one je tting mode in response to a user input. The jetting mode may be a pulse mode , a sinusoidal mode, a ramp mode, or a saw-tooth mode. In another spa system , a first pump operates at a first speed to heat the circulating water when a heater is activated, and at a second speed when the heater is not activate d. In other embodiments, the spa system includes a jetting pump assembly tha t includes a BLDC motor and a circulating pump assembly that operates at two speeds. In another embodiment, the spa system includes a circulating pump a ssembly that circulates water from an outlet port to an inlet port during st andby. Where the circulating pump assembly operates at a first speed when a heater is activated to heat the circulating water, and at a second speed whe n the heater is not activated.
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