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Q.
Why does the BRAC System have a potable water connection?
A.
The jet pump in the system can be severely damaged by allowing it to run dry. While an average
household will produce enough grey water to keep plenty of water in the tank, there will be occa-
sions when the demand will exceed the supply. The fresh water system insures that there is always
enough water in your tank to prevent the pump from running dry. An electronic level sensor con-
nected to a fresh water valve will add potable water from your home's plumbing system when the
level of water in your tank reaches a minimum level, and will automatically stop adding water when
the water reaches a safe level.
Q.
What causes the Pump to start?
A.
The Pump has a built-in pressure switch and internal flow switch. Each of these can turn the
pump on depending on water consumption. The pump will start when the pressure is below the
pressure switch activation point or the flow rate is greater than 0.7 GPM.
The preset activation point for each model is provided in the pump specifications. The cut in pres-
sure must be lower than the preset activation pump, otherwise the pump will not start.
Q.
What is the maximum pressures switch activation point?
A.
Adjust the pressure only when the cut in pressure is higher than the preset activation point. Do
not adjust the pressure to exceed the maximum pressure range of 67 psi, this may cause the pump
to not stop.
Q.
What causes the pump to stop?
A.
The flow switch is designed to automatically stop the pump when flow drops to below 0.7 GPM
(Gallons Per Minute). The pump will shut off in 8 seconds after flow stops. In addition, the pump will
be turned off in the event of dry-run or over temperature alarm.
Q.
What is the purpose of the built-in pressure tank?
A.
The pressure tank comes preset from the factory at 24 psi (1.7 Kg/cm2) for the TQ400 and 28 psi
(2.0 Kg/cm2) for the TQ800, (with the pump pressure at zero).
It is designed to minimize motor start-up due to small flow demand or minor leak of the pipeline.
Q.
How is the dry-run condition determined and the protection provided?
A.
The dry-run is defined when the motor is running and the flow rate is less than 0.3 GPM and
when pressure is less than the pressure switch setting. The protection is provided by a temperature
sensor that will cut off the pump when the temperature reaches 131°F (55°C).
It will attempt to restart when the temperature drops to 104°F (40°C).
