Horizon Reverse Osmosis Seafari Versatile Series, Owner'S Manual

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Seafari Versatile 450 - 1800
Page 6-2
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motor Soft Start.
Never start the system without the Back Pressure
Regulator Valve [33] open fully. The reduced torque
available to the motor is not sufficient to turn
the high-pressure pump when the Back Pressure
Regulator Valve is adjusted to 850 psi. Starting while
the Back Pressure Regulator is not fully open causes
damage to the motor.
The Start Sequence for a system equipped with a
Soft Motor Starter is as follows:
1. When the “Start” switch is pressed, power is
present at the Soft Start.
2. The Soft Start immediately begins
its starting cycle.
3. After a few seconds, the motor reaches full
speed and the High Pressure Pump contactor
makes an audible click and is switched on.
The Soft Motor Starter has a 30 Amp circuit breaker
on its enclosure. When the circuit breaker trips, the
Soft Starter power does not ramp properly. Check
the motor wiring and Soft Start to spot any wiring
problems. Reset the breaker inside the controller
before repeating the start sequence. If the circuit
breaker interrupts power repeatedly, the system may
require service.
The Soft Starter is equipped with a temperature
sensor. The temperature sensor is designed to
stop operation when the Soft Start overheats.
Before restarting the system, the main power must
be disconnected to reset the Soft Start’s logic.
Overheating occurs when the system is exposed to
extreme heat or it is started and stopped repeatedly
over a brief span of time.