ACV Prestige Technical brochure

P R E S T I G E

TECHNICAL

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A place for the cd containing all the diagrams presented in this book. Diagrams are in AutoCad format.

TABLE OF CONTENTS

Description

INTRODUCTION

Page

HEAT EXCHANGER

CONSTRUCTION

WORKING PRINCIPLE

Technical characteristics

TECHNICAL DATA

DIMENSIONS

Connections

HEATING CONNECTIONS

PRESSURE DROP DIAGRAM - HEATING

HOT WATER CONNECTIONS

PRESSURE DROP DIAGRAM - HOT WATER

ELECTRICAL CONNECTIONS

CHIMNEY CONNECTIONS

Burner, regulator, cascade

BURNER

TABLE OF CONTENTS

16 REGULATOR ACV / MCBA CASCADE OF BOILERS

Samples of installation

LEGEND

SCHEME 1

SCHEME 2

SCHEME 3

SCHEME 4

SCHEME 5

SCHEME 6

SCHEME 7

SCHEME 8

Prestige 50 - 75 Solo for 1 heating circuit and hot water production, weather dependent regulation by the boiler MCBA and the room thermostat

Prestige Solo for 1 heating circuit and hot water production, weather dependent regulation by the boiler MCBA and the Room Unit

Prestige Solo for 2 heating circuits and hot water production, regulated by the boiler MCBA and the AM 3-11 module

Prestige Solo for 2 heating circuits and hot water production, regulated by the boiler MCBA and the ZMC-1 module

Prestige Solo for 2 heating circuits and hot water production, regulated by the Control Unit

Prestige Solo with solar system and SLME cylinder for 2 heating circuits and hot water production, regulated by the Control Unit

Prestige Solo with solid fuel boiler for 2 heating circuits and hot water production, regulated by the Control Unit

Cascade of 2 Prestige regulated by the Control Unit

50 - 75

50 - 75 - 120

50 - 75 - 120 Solo for 2 heating circuits and hot water production,

16 16

SCHEME 9

SCHEME 10

SCHEME 11

SCHEME 12

SCHEME 13

Cascade of 3 Prestige Solo with solar system for 2 heating circuits and hot water production, regulated by the Control Unit

Cascade of 2 Prestige Solo for 4 heating circuits and hot water production, regulated by the 2 Control Unit

Cascade of 2 Prestige Solo with HeatMaster 201 (hot water production) for 3 heating circuits, regulated by the Control Unit

Cascade of 2 Prestige Solo with cascade of 2 HeatMasters’ 201 (hot water production) for 3 heating circuits, regulated by the 2 Control Unit

Cascade of 8 Prestige 50 - 75 - 120 Solo, regulated by the Control Unit

50 - 75 - 120

DESCRIPTION

INTRODUCTION

PRESTIGETECHNICAL

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Excellent resistance to corrosion and very economic, quite operation.

Prestige is a wall-mounted gas condensing boiler with very high efficiency. At the heart of the Prestige is a new, specially designed stainless steel heat exchanger, developed after intensive research and laboratory testing. Designed using ACV’s 80 years experience in the manufacture of heating and hot water products. Stainless steel offers very high resistance to corrosion eighter from water or condensed combustion gases. In this unique construction combustion gases pass downwards through the heat exchanger tubes, making maximum use of the energy available from the combustion process. Moreover, as the condensate runs down the heat exchanger tubes, it cleans any traces of combustion residue, this ensures that the boiler continues to function at maximum efficiency throughout its life. The Prestige burner can operate for both natural gas and propane, they are very quite with low NOx emission. An integrated weather dependent regulator controls the burner power which increases boiler efficiency and reduces gas consumption. The boilers are very compact and lightweight. Can be connected in cascade to increase output or installed together with HeatMaster or ACV tank-in-tank for hot water production. Prestige can fulfill the needs of both the individual and highly specialised user.

HEAT EXCHANGER

EXCELLENT RESISTANCE TO CORROSION

Stainless steel offers a high resistance to corrosion from the internal primary water which could contain system additives and impurities. It is also resistant to the acidity of condensate which forms in the flue ways, and even to the presence of sulfpher traces in natural gas or propane.

HIGH EFFICIENCY

The stainless steel heat exchanger flue tubes are designed to reach an optimal heat exchange over their entire length. The Prestige maintain an exceptional continuous output throuhout the life of the boiler, since no oxidation occurs in the heat exchanger. Furthermore the fuel consumption of the boiler is improved thanks to the reduced pressure loss in the flue tubes.

LIGHTWEIGHT

Due to the exceptional corrosion resistant properties of stainless steel, an equivalent aluminium heat exchanger would be much thicker and therefore much heavier than the stainless steel heat exchanger of the Prestige.

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LOW MAINTENANCE

The stainless steel heat

exchanger of the Prestige is self -

cleaning, as the condensate runs

down the exchanger tubes it

cleans any possible traces of

combustion residue. This ensures

that the boiler continues to

function at maximum efficiency

throughout its life, and therefore

maintenance requirements for the

heat exchanger are reduced.

STABLE BOILER

TEMPERATURE CONTROL

Most boilers use a water tube for

the combustion process, however

the stainless steel heat exchanger of the Prestige has flue tubes running through the

sealed water jacket. This

increases the volume of water in

the system, the benefit is that it

allows stable temperature control

of the boiler and minimizes the

risk of overheating due to varying

water flow rates.

DESCRIPTION

Special construction of the heat exchanger allows better heat exchange from combustion gases to the water

DESCRIPTION

CONSTRUCTION

PRESTIGE SOLO

PRESTIGETECHNICAL

24 - 32 50 - 75 - 120

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PRESTIGE EXCELLENCE

LEGEND:

1. Chimney connection

2. Burner

3. Stainless steel heat exchanger

4. Flue tubes

5. Condensate trap

6. Low gas pressure switch

7. CH primary pump

8. Electrical plate

9. Control panel

10. Hot water primary pump

11. Air vent

12. Stainless steel hot water tank

13. Expansion vessel

14. Low pressure water switch

15. Casing

WORKING PRINCIPLE

CONDENSATION

During natural gas or propane combustion, CO2 and water vapour is created. The temperature of combustion gases that leave a non-condensing boiler can be more than 150 C, which means that during stable boiler operation, water vapour will not condese. These combustion gases are hot, and this heat is lost to the atmosphere.

The Prestige is a condensing boiler, which means that the water vapour from combustion gases will condense and this heat will be recovered. Condensing boilers convert latent vapour energy contained in flue gases back to water, exploiting its thermal energy and therefore reducing fuel consumption.

This is how the standard output of a condensing boiler reaches 109% measured on the combustion gas LHV (Low Heating Value), which immiediately translates into an energy saving of 25-30% compared to a traditional system.

Contrary to traditional boilers, a condensing boiler not only uses the heat produced in combustion but also converts the latent heat of the vapour.

The Prestige features incredibly low emissions of nitrogen oxygen (NOx) and carbon monoxide (CO): emissions are 30% lower than the most stringent environment protection standards.

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DESCRIPTION

OPERATION

Working principle Pre-mixed gas and air is blown by the fan to the burner head, where it ignites on the burner tube.

The number of fan revolutions are regulated to allow for fluent power modulation of the burner. The flue gases pass downwards through the flue tubes of the heat exchanger and in the lower part the water vapour from flue gases is condensed, the condensate flows down to the trap below the boiler. Special construction of the flue tubes allows for efficient heat exchange to the water, when the condensate flows down through the heat exchanger, it cleans it automatically. The primary water is pumped across the heat exchanger, in the Prestige 24-32 these pumps are located under the front casing. The Prestige Excellence is also equipped with a 54 litre cylinder for hot water production. The cylinder is made using ACV tank-in-tank system. You know all the advantages of ACV tank-intank system ...

Boiler management Boiler operation is managed by the MCBA. The control manages all the gas burner and boiler

functions, including its safety parameters and flame modulation, as well as monitoring and controlling the water temperature (outlet/inlet) and the combustion gases. It can also work as a weather dependent regulator when the outside temperature sensor is connected.

With the MCBA you can also regulate a DHW tank or with further enhacements control multiple heating circuits and communicate with other boilers and controls.

TECHNICAL CHARACTERISTICS

TECHNICAL DATA

Fuel Input min/max Output min/max Efficiency 30% (EN677) Flue - max. pressure drop CO in combustion gases

Max NOx emission Max CO emission G20 gas flow rate G31 gas flow rate Weight

Heating circuits

Heating connections Hot water connections Max. operating temperature

PRESTIGETECHNICAL

Total capacity Boiler water capacity Hot water tank capacity Capacity of the expansion vessel Max. operating pressure heating/hot water Hot water peak flow Dt=30 C Hot water peak flow Dt=25 C

Electrical connection

Supply voltage Maximum absorbed electrical power Class

Type

kW kW

max Pa

% mg/kWh mg/kWh

m /h

litr litr litr

bar l/min l/min

V/Hz

Prestige Solo

G20, G31

5,9/24*

5,8/23,4*

109 130

max 9,3*

66*

45/20*

2,5

0,98**

1”

8 8

3/-

230/50

0,8

Prestige Excellence

G20, G31

5,9/24*

5,8/23,4*

109 130

max 9,3*

66*

52/20*

2,5

0,98**

1”

3/4”

90 70 16 54

1x12 litr

3/10 17,5 21,0

230/50

0,8

Prestige Solo

G20, G31

5,9/32*

5,8/31,0*

109 130

max 9,3*

66*

45/20*

3,4

1,3**

1”

8 8

3/-

230/50

0,8

[*] gaz G20 values **] Prestige with propane has P in the name

DIMENSIONS

PRESTIGE SOLO 24 - 32

PRESTIGE EXCELLENCE 24 - 32

Prestige Excellence

G20, G31

5,9/32*

5,8/31,0*

109 130

max 9,3*

66*

52/20*

3,4

1,3**

1”

3/4”

90 70 16 54

1x12 litr

3/10 22,4 27,0

230/50

0,8

Prestige Solo

G20, G31

15/49,9*

14,7/48,4*

107,8

150

max 9,4*

66*

45/20*

5,3

2,0**

1 1/4”

90 20 20

4/-

230/50

1,1

Prestige Solo

G20, G31

18,3/72*

17,9/69,9*

107,8

150

max 9,4*

62*

52/20*

7,6

2,8**

1 1/4”

90 17 17

4/-

230/50

1,1

Prestige Solo

120

G20, G31

45/80-126*

36,3/78,1-116,6*

150

max 9,5*

47*

106/*

12,7

5,1**

1 1/2”

90 28 28

4/-

230/50

1,1

TECHNICAL DATA

Type kW kW % max Pa %

Efficiency 30% (EN677)

Flue - max. pressure drop

CO in combustion gases

mg/kWh mg/kWh

m /h

m /h kg

Hot water connections

Max. operating temperature litr litr litr

Hot water tank capacity

Capacity of the expansion vessel

Max. operating pressure heating/hot water

bar l/min l/min

Hot water peak flow Dt=30 C Hot water peak flow Dt=25 C

Electrical connection

V/Hz A

Maximum absorbed electrical power

Input min/max

Output min/max

Max NOx emission

Max CO emission G20 gas flow rate G31 gas flow rate

Heating circuits

Heating connections

Total capacity

Boiler water capacity

Supply voltage

Fuel

Weight

Class

TECHNICAL CHARACTERISTICS

PRESTIGE SOLO 50 - 75

DIMENSIONS

PRESTIGE SOLO 120

CONNECTIONS

HEATING CONNECTIONS

1. By-pass with differential pressure valve

2. Isolating valve, heating system

3. Safety valve calibrated to 3 bar, with pressure gauge

4. System filling valve

5. Expansion vessel

6. Drain cock

7. Loading pump, heating system

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PRESTIGETECHNICAL

DIAGRAMS OF PRESSURE DROP - HEATING SIDE

PRESTIGE 24 - 32 SOLO PRESTIGE 50 - 75 SOLO

Pressure (mH2O)

Flow (litres/hour)

A = pressure drop of the boiler B = pressure available circulator on 1 C = pressure available circulator on 2 D = pressure available circulator on 3

PRESTIGE 120 SOLO

DOMESTIC HOT WATER CONNECTIONS

PRESTIGE SOLO

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PRESTIGE EXCELLENCE

CONNECTIONS

1. Isolating valve

2. Non-return valve

3. Safety valve

4. Pressure reducing valve (4 bar)

5. Expansion vessel

6. Thermostating mixing valve

7. Hot outlet

8. Circulating pump

DIAGRAMS OF PRESSURE DROP - DOMESTIC HOT WATER SIDE

Pressure drop (bar)

Volume of domestic hot water (litres/min)

A = pressure drop on the domestic hot water side - Prestige Excellence

CONNECTIONS

WIRING DIAGRAM - PRESTIGE 24 - 32

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PRESTIGETECHNICAL

1. 230V connection cord

2. On/off switch

3. Heating pump

4. Hot water pump - Excellence (Solo - option)

5. Burner

6. Gas valve

7. Transformer 230V-24V

8. MCBA

9. Screen

11. Water pressure switch

12. Burner connection

13. NTC1 flow sensor

14. NTC2 return sensor

15. NTC5 flue gas temperature sensor

16. Room thermostat (option)

17. NTC3 hot water sensor - Excellence (Solo - option)

18. NTC4 outdoor temperature sensor (option)

19. NTC6 second circuit sensor (option)

20. Zero volt of 24V circuit

21. External safety thermostat (RAM-option)

22. HT lead for ignition electrode

23. Heating pump connection of the direct circuit (2 heating circuits)

WIRING DIAGRAM - PRESTIGE 50 - 75

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PODŁĄCZENIA

CONNECTIONS

1. 230V connection cord

2. On/off switch

3. Heating pump

4. Hot water pump (option)

5. Burner

6. Gas valve

7. Transformer 230V-24V

8. MCBA

9. Screen

10. Gas pressure switch

11. Water pressure switch

12. Burner modulation

13. NTC1 flow sensor

14. NTC2 return sensor

15. NTC5 flue gas temperature sensor

16. Room thermostat (option)

17. NTC3 hot water sensor (option)

18. NTC4 outdoor temperature sensor (option)

19. NTC6 second circuit sensor (option)

20. Zero volt of 24V circiut

21. External safety thermostat (RAM-option)

22. HT lead for ignition electrode

CONNECTIONS

WIRING DIAGRAM - PRESTIGE 120

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PRESTIGETECHNICAL

1. 230V connection cord

2. On/off switch

3. Heating pump

4. Hot water pump

5. Burner

6. Gas valve 1

7. Gas valve 2

8. Transformer 230V-24V

9. MCBA

10. Screen

11. Air pressure switch

12. Gas pressure switch

13. Water pressure switch

14. Burner modulation

15. NTC1 flow sensor

16. NTC2 return sensor

17. NTC5 flue gas temperature sensor

18. Room thermostat (option)

19. NTC3 hot water sensor (option)

20. NTC4 outdoor temperature sensor (option)

21. NTC6 second circuit sensor

(option)

22. Zero volt of 24V circuit

23. External safety thermostat

(RAM-option)

24. HT lead for ignition electrode

CHIMNEY CONNECTIONS

B - connection to an exhaust duct

venting the combustion products outside of the installation area, with the combustion air being drawn directly from this area.

B - connection to an exhaust

23P

system of the combustion products designed to operate with positive pressure.

C - appliance connection with a

horizotal balanced flue/onlet air ducts to outside atmosphere.

C - appliance connection with a

vertical balanced flue/inlet air ducts to outside atmosphere.

C - connection with an individual

33S

system of which the exhaust duct for the combustion products is installed in an exhaust pipe that is part of the building. The appliance, the exhaust duct and the terminal units are certified as an assembly that cannot be dissociated.

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PRESTIGE 24 - 32 - 50 - 75

CONNECTIONS

C - connection by two ducts to a

collective duct system serving more than one appliance; this system of collective ducts features two ducts connected to a terminal unit that simultaneously intakes fresh combustion air and discharges the combustion products outside through openings that are either concentric or close enough together to be subjected to similar wind conditions. “U” duct system.

C - appliance connection to an

non balanced flue/inlet air ducted system.

Note: maximum flow resistance is shown in the technical manual for the boiler.

PRESTIGE 120

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