MOULDPRO DP 15 A, DP 30 A User Manual

DP 15 A
DP 30 A

User’s manual - Use and Maintenance

Descaling pumps

Notice technique - Utilisation et entretien

Pompes pour le détartrage

GB

F

Dear Customer, thank you for choosing a MOULDPRO descaling pump.

MANUAL

This manual is a safe guide for the use of the pump. Please read it carefully in all its parts before use.

This manual contains important information for the proper working and use of the equipment.

MOULDPRO reserve the right to introduce any future changes without notice or replacement.

PRELIMINARY INSPECTION

Upon receipt of the pump, take it out from the carton and check it is in perfect condition. Also check
that the data on the rating plate correspond to required ones. For any problem, immediately contact
the supplier specifying the kind of fault.

In case of doubts about the safety of the machine, do not use it.

DESCRIPTION

The pumps DP 15 A and DP 30 A are fitted with programmable automatic flow reverser. Particularly
recommended for difficult descaling treatments, they work in complete safety and autonomy enabling
the operator to carry out other works at the same time.

Vertical axis pumps with tank for descaling boilers by using specific non-acid restoring products.

The pumps are equipped with special fittings and valves to adjust the flows and purge the sludge, built
up by the operation, which is then rapidly removed.

Pumps are supplied ready to use, in strong carton boxes with related user’s manual.

Below are the main deposits which can be removed with these pumps:

- Scale deposits

- Calcium and silica deposits.

ENGLISH

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CONTENTS

1 - REGULATIONS – CE MARK page 4

2 - THE ADVANTAGES OF THE PUMPS DP 15 A AND DP 30 A page 4

3 - TECHNICAL FEATURES page 5

4 - CUSTOMER SERVICE page 5

5 - USE page 5

6 - SAFETY INSTRUCTIONS page 7

7 - DESCALING CHEMICALS page 7

8 - EXPLODED VIEWS page 8

9 - DIRECTIONS FOR DISPOSAL page 10

10 - WARRANTY TERMS AND AFTER-SALE ASSISTANCE CONDITIONS page 10

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1 - REGULATIONS – CE MARK

Declaration of Conformity

The pumps are in conformity with the following European Directives, Laws and Regulations:

Low Voltage Directive:

73/23/EEC
93/68/EEC

Electromagnetic Compatibility Directive:

89/336/EEC
92/31/EEC
93/68/EEC
93/97/EEC

Directives RoHS and WEEE:

02/98/EEC
02/96/EEC
03/108/EEC

QUALITY

MOULDPRO equipments are manufactured with high-quality acid-resistant materials and submitted to
severe operating tests.
Follow these instructions to avoid any operating and servicing problems.

2 - THE ADVANTAGES OF THE PUMPS DP 15 A AND DP 30 A

Time and, above all, temperature increase make
calcium salts, usually present in water, precipitate in the
form of microcrystals and settle on metallic surfaces of
pipes, plant coils and heat exchangers, thus reducing
flow rate and thermal efficiency.

To restore the original plant performance it is necessary
to carry out a descaling with specific products and
equipments.

The automatic flow reverser device attacks scale on
both sides, thus making descaling particularly effective
and fast (as the normal dissolving action is combined
with the detachment in flakes of scale, which is made
friable by the double attack), even when pipes and
exchangers are almost totally obstructed.

Clockwise
circulation

Heat exchanger

Counterclockwise

circulation

ENGLISH

5

3 - TECHNICAL FEATURES

DP 15 A

Vertical axis pump
Motor 220 V - Hp 0,17
Degree of protection IP 54
Max. temperature 50° C
Flow rate 40* l/min.
Head 10* m
Fittings 1/2”
Tank capacity 15 l
Dimensions ø x H 35 x 48 cm
Weight Kg 6

DP 30 A

Vertical axis pump
Motor 220 V - Hp 0,45
Degree of protection IP 54
Max. temperature 50° C
Flow rate 90* l/min.
Head 20* m
Fittings 1/2”
Tank capacity 24 l
Dimensions ø x H 40 x 63 cm
Weight Kg 10,5

* Data referred to the pump body outlet.

4 - CUSTOMER SERVICE

For enquiries on spare parts, please specify serial number of pump (shown on product and
carton).

5 - USE

5.1 - HOW TO PREPARE THE PUMP AND CHECK THE SEAL

- Fill the tank with enough water to ensure that the pump rotor
housing is submerged during operation.

- Screw the outer ends of the flexible hoses securely to the
exchanger to be descaled.

- Connect the power cable to a single-phase 220 V power
supply.

- Switch on the pump and check the seal of the hose fittings on
the exchanger and on the pump. In case of leaks of liquid,
check hoses and fittings and replace the defective
components, if necessary.

- When seal is safe, switch off the pump.

- If necessary, add more descaling product by referring to the
dilution specified in the data sheet of the product.

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5.2 - PROGRAMMING

Switch on the pump.
When switching on, the led for “OPERATE HOURS” is blinking and
is on 0 (zero). Press keys DX (right) or SX (left) to start manual
mode; the value 1 will be displayed.

For automatic programming follow the instructions below:

1. By press key + “BACKFLOW INTERV. MIN” the value 1 will be
fixed on display; this means the flow reversion will be carried out
every minute.

2. To modify the value press once the key +, the value will start
blinking; only during this stage it is possible to increase the value
(up to 9) by pressing again key +. After 3 seconds the value is
confirmed.

3. The displayed value decreases as minutes go by. To know the actual value set at the beginning,
press key + for 1 second and the actual value will start blinking.

4. To modify the value for “OPERATE HOURS” please refer to steps 2 and 3 above.

5. During automatic operation, to operate in manual mode, press twice in succession keys SX and DX.

6. Once the time set on the display “OPERATE HOURS” is finished, the pump will stop and the display
will be blinking and indicate the value 0 (zero).

7. To restart the pump press keys DX or SX; the pump will start working in manual mode and the display
“OPERATE HOURS” will show the value 1.

Scale removal can be considered complete when bubbles no longer form in the return pipe and the
solution is still acidic.

5.3 - HOW TO CLEAN THE PUMP

After descaling REMOVE THE DESCALING LIQUID FROM THE TANK and wash out the pump by
circulating clean water through it for at least 10 minutes.

PRECAUTIONS

Only use “MOULDPRO” chemicals in order to ensure good working and avoid damaging the
equipments.

Once the lifetime of the pump has expired, do not dispose of it with household
waste. The pump must be recycled in authorized centres and can be assimilated
to a household appliance.

During handling lift the pump and do not drag it in order to avoid damages to the tank.

Temperature of the descaling solution must never exceed 50 °C.

Flexible hoses and fittings can be damaged in time; make sure to check the seal whenever
using the pump, as indicated in the pump preparation instructions.

INTERVALLO INVERS. MIN.
UMKEHRINTERVALL MIN.
BACKFLOW INTERV. MIN.

FUNZIONAMENTO ORE
FUNKTIONIEREN STUNDEN
OPERATE HOURS

SX DX

MANUAL

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MANUAL

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