DAYLIFF DDV 60 Installation instructions

© Davis & Shirtliff Ltd 2020
Contents herein are not warranted

Congratulations on selecting a Dayliff DDV60. They are manufactured
to the highest standards and if installed and operated correctly will
give many years of efcient and trouble free service. Careful reading
of this Installation Manual is therefore important, though should
there be any queries they should be referred to the equipment
supplier.
Pump
The Dayliff DDV well pump is a unique design of submersible pump specially
applicable for water supply from domestic wells. The pump is of positive
displacement type using a vibrating diaphragm which is efficient and provides
high output pressure. Of compact construction and robust design, the pump is
also easily disassembled for maintenance and is securely installed by suspension
on a rope in the well.
Pump housing construction is aluminum throughout, the diaphragm and check
valve being made of rubber. 9m of drop cable is provided as integral with the
pump.
Motor
Pumps are fitted to a continuously rated electric motor. It should be connected to
single phase power supply through a 5A fuse or MCB.
Voltage : 1X 240V Enclosure Class: IP68 Insulation Class: B

ŸThe pump should be suspended freely in the
well using the supplied cord tied through the
holes provided in the pump casing and fixed
to a support at the surface. It should never be
suspended by the drop cable or delivery hose
and there should be no tension applied to
either of these items.
ŸThe pump should be immersed a minimum of
50cms under water and it should be a least
50cms from the well floor to minimize the
possibility of particle ingress.
ŸWater delivery should be through an 18-
22mm flexible hose connected to the pump
outlet using a jubilee type clip and the fitting
of a non-return valve close to the pump is
recommended for well depths greater than
5m. It is important to note that the pump
vibrates during operation and rigid fixing to a
pipe or mounting plate must be avoided.
ŸOnce installed it is recommended that the suspension rope, drop cable and
outlet hose be tied together with cable clips or tape at approx 1m spacings with
the first tie approx 200mm above the pump.
ŸThe power cord should be connected directly to mains power through a 5A
fuse or MCB.
ŸWhere there is possibility of unreliable power supply voltage the fitting of a
Sollatek power protection controller is highly recommended. Continuous
operation at low voltage can lead to motor failure.
2. INSTALLATION

3. PUMP OPERATION
ŸThe pump does not require any initial lubrication and is self priming once
immersed in water.
ŸWater discharge should be monitored and if silted water is noted the pump
should be switched off and its position in relation to the well/pit bottom
checked and raised if necessary. If the pumped water contains any sand or fine
stones pump damage will result.
ŸThe diaphragm will tend to wear over time. If pump performance is noted to
deteriorate the impeller and check valve should be replaced (see Section 4)
ŸThe pump is water lubricated and so no routine maintenance is necessary.
ŸThe pump is fitted with a rubber diaphragm and a rubber check valve that will
wear over time. They can be replaced by opening the housing tie bolts, the
diaphragm being replaced by removing the shaft nut and the old diaphragm
and the check valve by undoing from its location at the top of the pump
housing. It is recommended that both parts are replaced together, one set
being provided with each pump and additional sets being available from your
dealer. Do not over tighten the housing bolts on re-assembly and it is
recommended that the pump be tested in a container before reinstallation in
the well to check it is performing satisfactorily.
ŸIf the pumped water is silted the inlet ports may become blocked. They should
be cleaned with a blunt pointed tool to avoid damaging the rubber check
valve.
WARNING
To preserve pump life pump operation should be limited
to a maximum of 2 hours followed by a half an hour
shutdown. The pump should not be used continuously
for a long period of time and total use of the pump
should not exceed 12 hours in a 24 hour period.
WARNING
Electrical Supply MUST be switched off whenever
maintenance is being carried out.

5. TROUBLE SHOOTING GUIDE
Water
discharge
decreases,
pump’s
humming
suddenly
increases
Water
discharge
decreases,
pump’s
humming is
normal
Pump does
not run ,
power supply
protection
trips
Pump does
not run
Rubber diaphragm is worn-out R e p l a c e r u b b e r
diaphragm
Rubber check valve is worn-out Replace rubber check
valve
Electrical short circuit Check pump motor
No mains supply Check mains supply
Pump runs
with low or
no flow
Pump suction obstructed Clean suction
Delivery hose obstructed Check delivery hose and
rectify
Delivery head is too high Reduce delivery head

ii) Standard Warranty
General Terms
If equipment failure occurs in the normal course of service having been
competently installed and when operating within its specified duty limits
warranty will be provided as follows:-
• Up to six months - The item will be replaced or repaired at no
charge.
• Over 6 months, less than one year - The item will be replaced or
repaired at a cost to the customer of 50% of the Davis & Shirtliff
market price.
The warranty on equipment supplied or installed by others is conditional
upon the defective unit being promptly returned free to a Davis &
Shirtliff ofce and collected thereafter when repaired. No element of site
repair is included in the warranty and any site attendance costs will be
payable in full at standard chargeout rates. Also proof of purchase including
the purchase invoice must be provided for a warranty claim to be
considered.
6. TERMS OF WARRANTY
i) General Liability
• In lieu of any warranty, condition or liability implied by law, the liability of
Dayliff in respect of any defect or failure of equipment supplied is limited to
making good by replacement or repair (at the Company's discretion)
defects which under proper use appear therein and arise solely from faulty
design, materials or workmanship within a specified period. This period
commences immediately after the equipment has been delivered to the
customer and at its termination all liability ceases. Also the warranty period
will be assessed on the basis of the date that the Company is informed of
the failure.
ŸThis warranty applies solely to equipment supplied and no claim for
consequential damages, however arising, will be entertained. Also the
warranty specifically excludes defects caused by fair wear and tear, the effects
of careless handling, lack of maintenance, faulty installation, incompetence
on the part of the equipment user, Acts of God or any other cause beyond the
Company's reasonable control. Also, any repair or attempt at repair carried
out by any other party invalidates all warranties.