ATTACK PZO 120 Manuel d'utilisation - Page 5

Parcourez en ligne ou téléchargez le pdf Manuel d'utilisation pour {nom_de_la_catégorie} ATTACK PZO 120. ATTACK PZO 120 12 pages. Direct heated gas tanks for d.h.w

Imprimer la page

* Given values refer to heating without taking water and are only informative. The real values

depend on specific conditions (temperature of inlet water, intervals of water consumption

and so on).

Inlet gas pressure:

2,0 kPa for natural gas G20

Overpressure :

1,1 kPa for natural gas

Opening pressure of safety valve:

0,6 MPa

Range of operation thermostat:

about 40–72°C

ASSEMBLY

PZO water storage tank can be located in a place where for 1 kW of installed output there is 1m

of space, according to standards. In the place where the tank is located, over the floor there

must an opening of 200 cm diameter. If the room is not of the minimum volume required, over

the floor and under the ceiling there must be vent holes, each of 600 cm area. In the rooms

where there are more than 2 m of space for 1 kW of installed output, no vent holes are needed.

Before hanging the storage tank on the wall i tis necessary to make sure whether the wall is

strong sufficiently to carry the weight of the tank filled with water. The wall must be from

incombustible material, otherwise it must be insulated. We recommend to balance the

storage tank.

The assembly can be performed only by a qualified company.

CONNECTING THE HOT WATER STORAGE TANK TO GAS PIPE

The assembly must be done by valid standards and precautions. On the inlet of gas to the

appliance there must be a closing element (gas valve) that should be approachable easily.

After connecting the appliance to the gas pipe the pressure test must be done and report on

first examination must be written. Gas pipe is connected directly to a gas fitting.

CONNECTING THE WATER STORAGE TANK TO WATER PIPE

- Cold water is connected to the pipe with blue marking

- Hot water outlet is connected to the pipe with red marking

On the inlet of cold water into the tank it is necessary to attach a combined safety valve with a

non-return flap that opens automatically for 0.6 Mpa pressure. After pressure decreasing the

valve closes automatically. When higher amount of water is taken and it is heated intensively,

the safety valve can open for a short time and a certain amount will flow out. To stop often

opening of the valve we recommend to take following measures:

to fit a suitable expansion tank between the storage tank and safety valve. It is not possible to

use common expansion vessels, but tanks with a rubber bag and certificate for use for water

(e.g. ZILMET expansion tanks are suitable) which are dimensioned to maximum pressure. By

using a suitable expansion tank you can totally eliminate frequent opening the safety valve.