Prestige 120 User's Guide download pdf (Page 4)

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664Y3300

DESCRIPTION OF THE TECHNICAL

SPECIFICATIONS

The  is a wall-hung condensing boiler meeting the

requirements of current  standards in Belgium. The boiler

is certified compliant with  standards as a connected

appliance: , but it

can also be connected as an open appliance in category 

or as an appliance of category , which can operate with

a positive pressure.

HOUSING

The boiler is enclosed in a steel housing, which has been treated

with a degreasing and phosphatizing process, then spray painted

and baked at 220°C. The inside of this housing is lined with a

layer of thermal and sound insulation, which minimizes losses.

HEAT EXCHANGER

The core of the  features a new stainless steel heat

exchanger that is the fruit of exhaustive research and intensive

laboratory testing. This exchanger reflects ACV’s 80 years of

experience in using stainless steel for heating and hot water

generation systems. The special shape of the heat exchanger is

calculated to obtain a very high Reynolds number throughout all

its cycles. The  thus achieves an exceptional output that

remains stable throughout the boiler’s life, given that it causes no

oxidation on the exchanger, which is manufactured entirely from

high-quality steel.

BURNER

ACV uses its BG 2000-M burner for the : this is a

modulating air/gas premix burner providing safe and quiet

operation while limiting emissions (NOx and CO) to an incredibly low

level. Although the ACV BG 2000-M burner is very modern, it uses

proven technology and is manufactured using standard spare parts

that are easily available on the market.

TEMPERATURE CONTROL

The basic version of the  is fitted with a regulator

controlled by an MCBA microprocessor [Micro-Controlled Boiler

Automate), which handles the safety functions (ignition, flame

monitoring, temperature limitation, etc,) and the temperature

control of the boiler. This MCBA also features a regulator

governed by outdoor weather conditions. Simply connect the

outdoor temperature sensor, available as an option.

However, this regulator can also operate with a standard room

thermostat (on/off). Combining this regulator with a room

thermostat provides temperature control governed by outdoor

weather conditions, with indoor compensation.

The user may access four parameters to adjust all the necessary

settings. By entering a specific maintenance code into the unit,

qualified installers may access certain parameters, in order to

adapt the boiler to special requirements. In principle, these are

factory preset for all normal applications.

HOT WATER GENERATION

• It is specially designed to operate only as a heater or in

combination with the whole range of ACV water tanks. The

Smart Line range is the number one choice for domestic or

commercial applications.

FROST PROTECTION

The boiler features a built-in frost protection mechanism: as soon

as the flow temperature [NTC1 probe] drops below 7°C, the central

heating pump is activated. As soon as the flow temperature is at

3°C, the burner starts up until the flow temperature rises above

10°C. The pump continues to run for around 10 minutes.

If an outdoor temperature probe is connected, the pump is

activated when the outside temperature drops below the preset

threshold.

In order to enable the Prestige boiler to protect the whole system

against freezing, all the valves of the radiators and the convectors

should be completely open.

INTRoDuCTIoN

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