DAYLIFF DDW 400S Installation instructions

DDW
DOMESTIC PUMPS
Installation &
Operating Manual
DDW400/750S DDW750/1000V

PUMP SPECIFICATIONS
1.
1
2.
WARNINGS AND SYMBOLS 3
INDEX
© Davis & Shirtliff Ltd 2020
Contents herein are not warranted
3. INSTALLATION 4
4. ELECTRICAL CONNECTIONS 4
5. MAINTENANCE 5
6. TROUBLE SHOOTING 6
7. WARRANTY 7

1
1. PUMP SPECIFICATIONS
PUMPS
The DAYLIFF DDW submersible pump range are centrifugal submersible pumps
designed for small scale drainage, irrigation, fountain and water transfer
applications. Two versions are available, the standard S version with open
impeller for lightly turbid water and the vortex V version for water with higher silt
loads.
Pump construction is of high strength engineering plastic for the pump casing,
suction base and impeller and an external float switch is provided for automatic
pump control. All pumps are supplied with 10m of waterproof power cable and a
union connected outlet suitable for threaded or hose connection.
MOTORS
Pumps are provided with integral non-overloading induction motors designed for
continuous operation. A thermal cut-out is provided in the motor winding to
protect against pump overload and the pump can be connected directly to the
mains power supply through a 10A fuse or MCB.
3
FLOW RATE (m /hr)
2 4
06
PUMP HEAD (m)
2
4
6
8
10
8
DDW 1000V
DDW 750V
DDW 750S
DDW 400S
10 12 14 16
DDW400/750S DDW750/1000V
Congratulations on selecting a Dayliff DDW Domestic Pump. 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 DATA
2
Enclosure Class: IPX8 Insulation Class: F Voltage:1x240V
Speed: 2900rpm
OPERATING CONDITIONS
Pumped liquid: Thin, clean, chemically non-aggressive liquid containing
some particles and fibres
0
Max fluid temperature: +35 C
Max Operating Depth: 7m
Model Motor Dimensions (mm) Weight
(kg)
kW
Outlet
(”)
W
DDW 400S
DDW 750S
0.4 1.7 370 5
5
6
35
0.75 3.1 220
1 4.2
7
7
H
Current (A)
DDW 750V
DDW 1000V
Max. Particle
size (mm)
385
Min 400
Min 350x350
H
W
1. Carrying handle
2. Float switch height adjustment
3.Hose adapter for pressure
connection
4. Float Switch
5. Pump casing
6. Mains cable and plug
2
4
6
5
3
1

3
During operation for swimming pools, garden ponds
and similar places, the appliance must be equipped
with a residual current circuit breaker (RCCB) with a
design fault current of not more than 30 mA.
Do not kink, crush, drag or drive over the mains cable;
protect against sharp edges, oil and heat.
Extension cables must not be used.
Do not install the pump in swimming pools or ponds
where they may be people using the water.
WARNING
WARNING
WARNING
WARNING
WARNING
Repairs must be carried out only by a qualified
electrician.
2. WARNINGS AND SYMBOLS
WARNING
WARNING
Do not use the appliance in potentially explosive areas
or in the vicinity of flammable liquids
or gases.
Do not touch the mains plug with wet hands. Always
disconnect the mains plug by pulling the plug and not
the cable.
WARNING
The connection must be made to earthed sockets which
have been properly installed, earthed and tested.
Mains voltage and fuse must comply with the technical
data.

44
3. INSTALLATION
ŸThe pump can be used for various drainage and water transfer installations for
tanks, ponds and basements. It is best installed in a sump of minimum 35cm
square and 40cm deep to allow for float switch operation
NOTE
In the case of continuous use of the pump with the rope,
the condition of the rope must be checked regularly as it
can decay and break over time.
WARNING
Do not lift the pump with the cable or pressure hose as
these are not designed for the tensile stress from the
weight of the pump.
Ÿ
ŸSubmerge the pump at an angle into the liquid to be pumped so that no air
pocket forms on the underside of the appliance which affects suction. Once
the pump is submerged, it may be straightened as desired.
ŸThe pump should not be suspended by its cable or delivery pipe. It should
either rest on a solid, level base or be suspended by steel cable or chain.
ŸThe pump must be connected by either a rigid pipe or hose; diameter should
be no less than the outlet connector.
ŸEnsure the pump is not resting on silt or sand during normal operation or
impeller damage will occur.
ŸAdjust the low level control switch on its clip to ensure free float movement and
sufficient time between start and stop cycles.
The float switch must be able to move to protect the
pump from dry running.
WARNING
4. ELECTRICAL CONNECTIONS
WARNING
The installer is responsible for making electrical
connections to the mains supply in compliance with
relevant local regulations. Ensure that a professional
electrician carries out the electrical connections and
that the following guidelines are followed.

45
ŸAll installations must be provided with an isolator to cut off mains power supply
and coarse current protection in the form of a fuse or MCB rated at 2-3 times
the full load current as given on the pump plate.
ŸEnsure that the power supply rating complies with the specification in these
instructions.
ŸEffective earthing must be provided according to local regulations.
ŸMotors are protected against overloads by a thermal overload fitted in the
motor windings.
5. MAINTENANCE
The pump requires no routine maintenance and if correctly installed, should give
long term trouble free service. However, the following should be noted:-
ŸIf pump performance drops check for debris in the impeller. If observed, flush
with water to clean. If this action is insufficient, remove the suction cover and
clean around the impeller.
ŸParticularly check the pump seating location and clear any debris and silt that
may have accumulated.
NOTE
Before carrying out any maintenance ensure the
electrical supply is isolated.
NOTE
Before using the pump again, first “soak” it so that any
possible dirt residues do not block the appliance.

46
Problem Possible Cause Solution
The pump
does not
run
No mains supply
6. TROUBLE SHOOTING
Check mains supply
Level switch not switching on
Check switch adjustment
Low water level
Pump suction sieve clogged
C l e a n s u c t i o n ( s e e
maintenance section)
Delivery hose obstructed
Check delivery hose & rectify
Pump runs
with no
flow
Pump suction obstructed
Check suction
Delivery head too high
Reduce delivery head
Specify different pump
Low flow
Check pump suction
Check mains power voltage
Thermal cutout tripped due
to overload
Check water temperature is
0
below 35 C
Pump stops
after short
operating
period

7
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.
7. TERMS OF WARRANTY
i) General Liability
• In lieu of any warranty, condition or liability implied by law, the liability of Davis
& Shirtliff (hereafter called the Company) 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.

INS181C-08/18
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