DAB VA 55/130 Installation and operating instructions

Installation & Maintenance

Instructions

VA - VB

A - B

VD - VS

DECLARATION OF CONFORMITY

VA 35/130 VA 55/130 VA 35/130 VA 55/130 VA 65/130 VS 8/150

VA 35/180 VA 55/180 VA 35/180 VA 55/180 VA 65/180 VS 16/150

VB 35/120 VB 55/120 VB 35/120 VB 55/120 VA 65/120 VS 35/150

VD 55/220.32 VD 65/220.32 VS 65/150

The Company DAB PUMPS s.p.a.-Via M.Polo.14

-Mestrino (PD) -ITALY -declares under its own

responsibility that the above-mentioncd products

comply with:

-Directive on electromagnetic compatibility no. 89/336

and subsequent modifications.

-Directive on low voltage no. 73/23 and

subsequent modifications .

Mestrino (PD). 07 Gennaio 1998

Attilo Conca

Legal Representative

WARNINGS:

Installation , electrical connection and setting up of the pump must be carried out by

skilled personnel in compliance with the general and local safety regulations in force.

Failure to abide by these instructions invalidates every right to the guarantee, as well as

endangering persons and equipment.

APPLICATIONS:

VA , VB , A , B , D ; for hot water in domestic heating systems. .

S; for domestic water supply

INSTALLATION :

On the delivery pipe or the return pipe. The arrow stamped on the pump body indicates the

direction of flow.FIG. 4

Install an isolation valve on both the intake pipe and delivery pipe.FIG. 5

Always fit the circulator with the motor shaft in a horizontal position, avoiding the dripping of

water onto the motor and onto the terminal board.FIG. 6

Avoid mixing hydrocarbon-derived additives and aromatic products with the circulating water.

Antifreeze Max :30%

Provide an anti-scale system in domestic water circulating units where the water hardness TH is

higher than 15jF

ELECTRICAL CONNECTION :

Supply voltage and frequency must be the same as shown on the data plate. The circulator

must ALWAYS BE CONNECTED TO EARTH. Make the connection as indicated below.

FIG. 7

Fit a two-pole switch with a

contact distance of at least

3mm. No overload protection

is required. Use rubber cables

HO5RR-F 3xO.75mmFIG. 8

STARTING UP :

After installation ,fill and bleed the system before running the circulator. Start the circulator

at top speed.FIG. 9

If it is necessary to bleed air

from the motor, slowly slacken

the breather cap and let the fluid

out for a few seconds.

FIG. 10

Avoid running the circulator when there is no water in the system.

TAKE CARE, DANGER OF SCALDS.

FIG. 11

Speed adjustment, on pumps provided with the necessary device, is accomplished by turning

the three position switch, even when the motor is live.

In twin pumps, simultaneous operation must be at the same speed.

FIG. 12

MAINTENANCE :

The circulator does not require any maintenance.

At the start of the winter season, ensure that the motor shaft is not blocked.

FIG. 13

TROUBLESHOOTING

Check the shaft is turning freely. Remove

any dirt and/or scale.

Dirt or scale between the rotor and the stator

lining or between the impeller and pump

body.

The pump starts and then stops after a short

time

Bleed the pump.

Increase the intake pressure.

Air in the pump.

Intake pressure too low.

The pump is noisy

Select a lower speed.

Bleed the system.

Flow rate to high.

Air in the system.

The system is noisy

Check the electric connections and fuses.

Check the data on the plate and apply the

corect voltage.

Change the capacitor.

Select the maximum speed and/or free with a

screwdriver.

No supply voltage.

Incorrect supply voltage.

Faulty capacitor ( single phase motors).

Rotor is blocked by deposits on the rotor.

The pump does not start

REMEDIESPOSSIBLE CAUSESFAULTS

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