VADA VFB-HM80, Руководство по установке

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No water is
delivered from
the pump, or the
pump performance
has decreased
(continued).
The in-line strainer
on the suction line
may be blocked. If you do not regularly clean the filter,
it will clog up and cause the pump to fail.
1. Close the isolating valve on the suction line.
2. Remove/clean in-line strainer
or replace if necessary.
3. Once in-line strainer has been
cleaned, open isolating valve on
suction line and retry for pressure.
The mesh filter in the
digital water switching
unit may be blocked.
* Only applicable if
application is using a
digital water switch.
If a digital water switching unit is installed:
1. Switch off power to the unit.
2. Isolate the water lines and remove
the pump barrel union.
3. Inspect/clean/replace the
switching unit mesh filter.
The pump may
be sucking air. There may be a leak in the suction line,
or the pump was not primed correctly.
1. Ensure that the joints on
suction line are airtight.
2. If joints are airtight, reprime the pump
by bleeding air from system while the
suction line is connected to the pump.
a) Above ground tank: Remove
priming plug on pump casing. Allow
water to flow through via gravity
until all air has been expelled.
b) Below ground tank: Ensure foot
valve is installed, fill up suction line
and casing from discharge point.
3. Activate all appliances/outlets
sequentially from the nearest to the
furthest outlet. Repeat if necessary.
4. If problem persists, please contact
the Reece branch where the
pump was purchased from.
Refer to page 16 for more information
on priming the pump.
The liquid column
may be above the
check valve on the
discharge line. The weight of water can force the check valve
on the discharge line to close. This prevents
air being expelled from casing and suction line,
affecting the pump’s self-priming performance.
Ensure water is completely drained
above the level of the check valve.
No water
supply at all.
The rainwater tank
may be empty. 1. Check the tank level.
2. If empty/low, wait for the tank to refill.
There may be
blockage in the
pipework. 1. Close the isolating valves on the
suction and discharge lines.
2. If switching from tank and mains
water, close the isolating valve
on the mains line also.
3. Check pipework and devices for debris
4. If found, clean or replace pipework.
5. Open isolating valves again to check
and ensure flow rate is sufficient.
The mains water valve
may be closed.
* Only applicable if
application is using
a water switching unit.
Check that the mains water
isolation valve is open.
Incoming mains water
pressure may be
greater than 1000kPa.
* Only applicable if
application is using
a digital water switch.
Fit a pressure reduction valve to
reduce incoming mains pressure.
The Green LED light
on the pressure
controller is not on.
* Only applicable if
application is using
a pressure controller.
Power to the pressure
controller may not
have been turned on. Check the power supply.
The pressure
controller may not
have restarted. The pressure controller is still in ‘lock
out’ mode, meaning it has detected a
loss of prime (tank empty). If the tank has
been refilled with rainwater, the pressure
control can be manually reset by pressing
the “Restart” button on the device.
49 48
VADA FLOW BOSS HORIZONTAL MULTISTAGE PUMP VFB-HM80 INSTALLATION MANUAL
TROUBLESHOOTING
SYMPTOM CAUSE SOLUTION SYMPTOM CAUSE SOLUTION