Beretta POWER MAX 50 P DEP, POWER MAX 50 P, POWER MAX 100, POWER MAX 130, POWER MAX 110 Installation And Operation Manual

Installation and Operation Manual

Condensation | Heating module

POWER MAX

Installation and Operation Manual

EN

2

RANGE

MODEL CODE

POWER MAX 50 P DEP 20128429
POWER MAX 50 P 20128430
POWER MAX 65 P 20128431
POWER MAX 80 P 20128432
POWER MAX 100 20128433
POWER MAX 110 20128434
POWER MAX 130 20128435
POWER MAX 150 20128436

ACCESSORIES

For a complete list of accessories and details of their com­patibility, refer to the Catalogue.

ENGLISH

Dear heating engineer,
congratulations on having chosen a thermal module B,
a quality product that is designed to give dependable, ef­cient and safe service and to provide comfort in the home
for many years to come.
This manual provides information that is essential to the in­stallation of the appliance. Used in conjunction with your
own knowledge and expertise it will enable you to install the
appliance quickly, easily, and correctly.

Please accept our thanks and our congratulations on your
choice of product.
Beretta

CONFORMITY

thermal modules

POWER MAX

comply with:

- Gas Appliances Directive 2009/142/EC (until 20 April

2018) and Regulation (EU) 2016/426 (from 21 April

2018)

- Directive 92/42/EEC on efciency requirements and
Annex E and Pres. Republic Decree n. 412, 26 Au­gust 1993 (****)

- Electromagnetic Compatibility Directive 2014/30/EU

- Low Voltage Directive 2014/35/EU

- Ecodesign Directive 2009/125/CE for energy-related
products

- Energy Labelling Directive 2010/30/EU

- Delegated Regulation (EU) N. 811/2013

- Delegated Regulation (EU) N. 813/2013

- Standard for gas-red heating boilers - General re­quirements and tests - EN 15502-1

- Specic standard for type C appliances and type B2,
B3 and B5 appliances of nominal heat input not ex­ceeding 1000 kW - EN 15502-2/1

- SSIGA Gas Appliance Directive G1

- AICAA Fire prevention requirements

- CFST LPG Directive Part 2

- VARIOUS cantonal and communal provisions on air
quality and energy saving.

This manual, Code 20133145 - Rev. 3 (06/18) comprises 60 pages.

3

CONTENTS

The following symbols are used in this manual:

b

CAUTION! =

Identies actions that require caution

and adequate preparation.

a

STOP! =

Identies actions that you MUST NOT do.

This manual, Code

- Rev.
comprises
pages.

1 GENERAL INFORMATION . . . . . . . . . . . . . . .4

1.1 General Safety Information . . . . . . . . . . . . . . . . . 4

1.2 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3 Description of the appliance . . . . . . . . . . . . . . . . 5

1.4 Safety devices . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.5 Identication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.6 System layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.7 Technical specications . . . . . . . . . . . . . . . . . . 10

1.8 Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.9 Water circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.10 Positioning the temperature sensors . . . . . . . . . 12

1.11 Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . .14

2.1 Unpacking the product . . . . . . . . . . . . . . . . . . . 14

2.1.1 Positioning of labels. . . . . . . . . . . . . . . . . . . . . . 14

2.2 Overall dimensions and weights . . . . . . . . . . . . 14

2.3 Installation premises . . . . . . . . . . . . . . . . . . . . . 15

2.3.1 Recommended minimum distances . . . . . . . . . 15

2.4 Installation in older systems and systems

requiring modernisation. . . . . . . . . . . . . . . . . . . 15

2.5 Moving and removing the packing . . . . . . . . . . 16

2.6 Thermal module assembly. . . . . . . . . . . . . . . . . 16

2.7 Water connections . . . . . . . . . . . . . . . . . . . . . . . 18

2.8 Typical water system schematics . . . . . . . . . . . 19

2.9 Gas connections . . . . . . . . . . . . . . . . . . . . . . . . 22

2.10 Discharge of combustion products . . . . . . . . . . 22

2.10.1 Preparation for the condensate drain . . . . . . . . 24

2.11 Neutralising the condensate . . . . . . . . . . . . . . . 24

2.11.1 Water quality requirements . . . . . . . . . . . . . . . . 24

2.12 System lling and emptying. . . . . . . . . . . . . . . . 25

2.12.1 Filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.12.2 Emptying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.13 Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.14 Electrical connections . . . . . . . . . . . . . . . . . . . . 29

2.14.1 USER navigation MENU. . . . . . . . . . . . . . . . . . . 32

2.15 Navigation Menu INSTALLER /

MANUFACTURER . . . . . . . . . . . . . . . . . . . . . . . 34

3 COMMISSIONING AND MAINTENANCE . . . 39

3.1 Preparing for initial startup. . . . . . . . . . . . . . . . . 39

3.2 Initial startup . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

3.2.1 Switching the appliance on and off . . . . . . . . . . 39

3.2.2 Password access. . . . . . . . . . . . . . . . . . . . . . . . 39

3.2.3 Setting the heating parameters . . . . . . . . . . . . . 40

3.2.4 Setting the domestic hot water parameters. . . . 42

3.3 Checks during and after initial start-up . . . . . . . 43

3.4 Error List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3.4.1 Permanent Errors . . . . . . . . . . . . . . . . . . . . . . . . 44

3.4.2 Temporary Errors . . . . . . . . . . . . . . . . . . . . . . . . 44

3.4.3 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3.5 Transformation from one gas type to another . . 45

3.6 Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

3.7 Temporary or short-term shut-down . . . . . . . . . 48

3.8 Preparing for extended periods of disuse . . . . . 48

3.9 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

3.10 Cleaning and removing internal components . . 49

3.11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 53

4 SYSTEM MANAGER . . . . . . . . . . . . . . . . . . .54

4.1 Putting into service . . . . . . . . . . . . . . . . . . . . . . 54

4.2 Temporary or short-term shut-down . . . . . . . . . 55

4.3 Preparing for extended periods of disuse . . . . . 55

4.4 Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

4.5 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

4.6 Useful information . . . . . . . . . . . . . . . . . . . . . . . 56

5 RECYCLING AND DISPOSAL. . . . . . . . . . . . 57

4

1 GENERAL INFORMATION

1.1 General Safety Information

b

After removing the packaging, check the condition
and completeness of the supply. If there are any
problems, contact the company

B that sold the

equipment.

b

This product must be installed by a legally qualied

heating engineer. On completion of the installation,
the installer must issue the owner with a declaration

of conformity conrming that the installation has been

completed to the highest standards in compliance
with the instructions provided by B in this instruc­tion manual, and that it conforms to all applicable
laws and standards.

b

This product must only be used for the purpose

for which it is designed and made, as specied by

B. B declines all responsibility, contractual or

other, for damage to property or injury to persons or
animals caused by improper installation, adjustment,
maintenance or use.

b

In the event of a water leak, disconnect the thermal
module from the main power supply, shut off the water
supply and promptly notify the Technical Assistance
Centre B or professionally qualied personnel.

b

Periodically check that operating pressure in the wa­ter circuit is over 1 bar but below the maximum limit

specied for the boiler. If this is not the case, contact

Technical Assistance Centre B or a professional-

ly qualied heating engineer.

b

The following operations shall be necessary if the
thermal module is not used for a long period of time:

- Switch the boiler OFF at the control panel

- Turn the main system switch "off"

- Close the fuel cock and heating circuit water cock

- Drain the central heating circuit if there is any risk of
freezing.

b

Maintenance must be performed on the thermal mod­ule at least once a year.

b

This manual is an integral part of the appliance and
must therefore be kept with care and must ALWAYS
accompany the thermal module, even when it is
passed on to another owner or user or transferred to
another installation. If it is lost or damaged, please
contact your local Technical Assistance Centre B
for a new copy.

b

This manual must be read carefully so as to ensure
the correct and safe installation, operation and main­tenance of the appliance. The Owner must be ade­quately informed and trained on how to operate the
appliance. Make sure that he/she is familiar with all
the information required for safe system operation.

b

The thermal module, before being connected to the
hydraulic system, the gas network, and the electrical
system, may be exposed to temperatures ranging
from 4°C to 40°C. After it can activate the Frost Pro­tection function, it can be exposed to temperatures
ranging from -20°C to 40° C

b

Regularly check that the condensate drain is free
from obstruction.

b

We recommend cleaning inside the exchanger once
a year, extracting jet and burner and removing any
installation debris by suction. This operation will be
done by personnel from the Technical Assistance
Centre only.

1.2 Precautions

The operation of any appliance that uses fuel, electrical
power and water demands that a number of fundamental
safety precautions be respected:

a

Do not allow children or inrm persons to operate the

system unsupervised.

a

It is forbidden to use electrical devices or equipment,
such as switches, appliances, etc. if there is a smell
of gas or un-burnt products. If so:

- Ventilate the room, opening doors and windows

- Close the fuel shut-off cock

- Report the fault immediately to the B's Technical
Assistance Centre or a professionally qualied heat­ing engineer.

a

Do not touch the boiler while barefoot or wet.

a

Any technical or cleaning activity is forbidden before
disconnecting the appliance from the main power
supply by switching the system's master switch and
the appliance's main switch to the "OFF" position.

a

Do not tamper with or adjust the safety or control de­vices without prior authorisation and instructions from
the manufacturer.

a

Do not plug or block the condensate drain outlet.

a

Never pull, disconnect, or twist the electrical cables
coming from the appliance even if it is disconnected
from the mains electricity supply.

a

Do not obstruct or restrict the vents in the room where
the boiler is installed. Adequate ventilation is essen­tial for correct combustion.

a

Do not expose the appliance to weather elements
(without using the dedicated accessory). It has been
designed for indoor use.

a

Do not switch off the appliance if the outdoor temper­ature may drop to below ZERO (frost hazard).

a

Do not leave ammable containers and substances

in the room where the device is installed.

a

Do not dispose of packaging material into the envi­ronment, or leave it within the reach of children, since
it can become a potential hazard. Dispose of packag­ing material in compliance with applicable legislation.

a

Do not activate the thermal module without water.

a

Individuals without specic qualications and skills

are not allowed not remove the thermal module's
casing.

5

1.3 Description of the appliance

POWER MAX

it is a condensing, pre-mixed thermal module
consisting in a modulating thermal element.
It is available in various models, ranging from 35kW to
131kW.
Optimal combustion management supports high yields
(over 109%, calculated over NVC, in condensation re­gime) and low polluting emissions (Class 6 pursuant to EN

15502).
The thermal module is designed for open chamber opera­tion, but can be converted to sealed chamber operation by

tting a dedicated accessory.
The appliance in standard conguration is envisaged for

indoor installation to guarantee an IPX4D protection level.

b

Appliances may be cascaded

POWER MAX

to reach

a maximum power of 1.12 MW.

The appliance's key technical features are

- pre-mix burner with constant air-gas ratio;

- helicoidal heat exchanger with double coil with
smooth stainless steel pipe, to guarantee good corro­sion resistance and the option of operating with high
∆ts (up to 40°C), reducing system set-up times;

- power from 35 to 131 kW;

- maximum ue gas output temperature 100°C;

- microprocessor management and control with self-di­agnostics, shown by means of a display, and logging
of main errors;

- Anti-Frost function;

- pre-setting for room/heat demand thermostat for low
and high temperature ranges;

- option to manage a CH circuit and a DHW circuit with
storage tank;

- high-efciency and high residual discharge head cir­culator (for models up to 70kW; a circulator is availa­ble as an accessory upon request for other models);

- climate control function (available only when using
the outdoor temperature sensor accessory).

1.4 Safety devices

All appliance functions are electronically controlled by a
dual processor technology board approved for safety func­tions.
Any malfunction results in the appliance being shut down
and the automatic closure of the gas valve.

The following is installed on the water circuit:

-

Safety thermostat

.

-

Flow sensor

capable of monitoring the main circuit's

ow on an ongoing basis and of stopping the appli­ance in the event of insufcient ow.

-

Temperature probes

on delivery and return lines that

measure the temperature difference (∆t) between
input and output uid and enable activation of the

control.

-

Minimum pressure switch

.

The following is installed on the combustion circuit:

-

Gas solenoid

in class B+C , with pneumatic gas ow

compensation depending on the suction line's air

ow rate.

-

Ignition/detection electrode

.

-

Flue gases temperature probe

.

b

The triggering of safety devices indicates the mal­function of a potentially hazardous thermal module.
Therefore, contact Technical Assistance Centre im­mediately. After a brief pause, it is possible to try and
restart the appliance (see Paragraph "Initial startup").

b

Safety devices must be replaced by Technical Assis­tance Centre, using only original parts. Refer to the
spare parts catalogue supplied with the appliance.
After making the repair, check that the appliance is
working properly.

a

The appliance must not be put in service, even tem­porarily, when tampered safety devices are not in op­eration or have been tampered with.

6

1.5 Identication

The products are identied by:

1 Technical data plate

It indicates the technical and performance data.

2 Gas label

.

Is located on the appliance's side and states the type of fuel used and the country of destination.

2

Paese di destinazione:

Tipo di apparecchio
Caldaia categoria::

B23

II2H3+

Pressioni di alimentazione gas:

Regolazione effettuata dal costruttore:

G20 - 20 mbar - 2H METANO

ATTENZIONE

Leggere attentamente il libretto istruzioni
prima di installare e mettere in servizio
l'apparecchio.

(Laterale DX)

Temperatura ambiente:

min. -10°C max. 50°C

Questo apparecchio puó essere installato e
funzionare all'aperto o solo in locali
permanentemente ventilati secondo norma
UNI7129.

068411_E0

G20 20 mbar
G30 28-30 mbar
G31 37 mbar

1

European Directive

92/42/EEC:

Gas type:

Category:

IT

Caldaia a condensazione - Chaudierè a condensation - Brennwertkessel - Condenserende verwamingsketel

G20 G25

Qn(max)=

Cod.

N°

Pn(max)=

Qn(min)=

Pn(min)=

-

P.min.G20= 20 mbar

IP

G20 - 20 mbar

NOx:

bar

T=

°C

kW

kW

kW

kW

kW

kW

kW

kW

T067692GE

-

-

-

17

CALDAIA REGOLATA PER:

CHAUDIERE REGLEE POUR:

KESSEL GEREGELT FUR:

VERWARMINGSKETEL INGESTELD OP:

KEDEL REGULERET TIL:

CENTRALA REGLATA PENTRU:

A KAZAN AZ ALABBI ADAKTORA LETT BEALLITVA:

PAESE DI DESTINAZIONE:

PAYS DE DESTINATION:

LAND VON BESTEMMING:

BESTIMMUNGSLAND:

LAND,HVOR KEDLEN SKAN INSTALLERES:

TARA DE DESTINATIE:

RENDELTETESI ORSZAG:

PMS=

Beretta Caldaie
Via Risorgimento, 13
23900 Lecco (LC)

Central heating section

Qn

Rated heat input

Pn

Rated useful heat output

IP

Electric degree of protection

PMS

Maximum operating pressure, CH circuit

T

Temperature

η

Efciency

NOx

NOx class

b

If these plates or any other means of clearly identifying the product are defaced, removed or lost, proper installation

and servicing may be rendered difcult.

7

1.6 System layout

POWER MAX

50 P DEP - 50 P

1

3

6

7

17

9

2

5

4

16

13 14 15

1

2
3

4

6

5

7

8

10

9

11

17

18

19

20

12

23
22

24

26

24

21

22

23

25

1

Flue gas analysis outlet

2

Flue gas exhaust connection

3

Gas valve

4

Fan

5

Flue gases pressure switch

6

Combustion chamber

7

Electrical panel

8

Minimum Pressure Switch set at 0,7 bar

9

Exhaust ue probe

10

Condensate drain siphon

11

Drain cock

12

Main switch

13

Central heating return

14

Gas supply

15

Central heating ow

16

Condensate drain connection

17

Flow-meter

18

Pump

19

Return probe

20

Control panel

21

Safety Thermostat with manual reset by PCB

22

Flow probe

23

Automatic bleed valve

24

Ignition/detection electrode

25

Casing

26

Smoke-exhaust ue non-return valve

8

POWER MAX

65 P - 80 P

1
2

3

4

5

1

4

5

6

10
16

6

7

8

9

10

22

20

21

23

24

17

2

21

22

23

3

16

15

1211 13 14

17

19

18

1

Flue gas analysis outlet

2

Flue gas exhaust connection

3

Gas valve

4

Fan

5

Combustion chamber

6

Electrical panel

7

Smoke-exhaust ue non-return valve

8

Drain cock

9

Minimum Pressure Switch set at 0,7 bar

10

Pump

11

Main switch

12

Central heating return

13

Gas supply

14

Central heating ow

15

Condensate drain connection

16

Flow-meter

17

Exhaust ue probe

18

Return probe

19

Control panel

20

Ignition/detection electrode

21

Safety Thermostat with manual reset by PCB

22

Flow probe

23

Automatic bleed valve

24

Casing

9

POWER MAX

100 - 110 - 130 - 150

1

3

4

5

14

16

2

21

22

13

109 11 12

1

2

3

4

5

6

7

8

19

23

14

21

20

22

16

15

18

17

1

Flue gas analysis outlet

2

Flue gas exhaust connection

3

Fan

4

Combustion chamber

5

Electrical panel

6

Smoke-exhaust ue non-return valve

7

Drain cock

8

Minimum Pressure Switch set at 0,7 bar

9

Main switch

10

Central heating return

11

Gas supply

12

Central heating ow

13

Condensate drain connection

14

Flow-meter

15

Gas valve

16

Exhaust ue probe

17

Return probe

18

Control panel

19

Ignition/detection electrode

20

Safety Thermostat with manual reset by PCB

21

Flow probe

22

Automatic bleed valve

23

Casing

10

1.7 Technical specications

Description

POWER MAX

U.M.

50 P
DEP

50 P 65 P 80 P 100 110 130 150

Appliance type

Condensing boiler heating system

B23, B53; B53P
Fuel G20-G25-G30-G31
Device category II2H3P
Combustion chamber vertical
Maximum rated heat input at furnace referred to HVC

(LCV)

38,7

(34,9)50(45)63(57)76(68)

100
(90)

108
(97)

124

(112)

146

(131)

kW

Minimum rated heat input at furnace referred to HVC
(LCV)

10

(9)10(9)15(14)15(14)

21,6

(19,4)

21,6

(19,4)

24,9

(22,4)

29,2

(26,2)

kW

Useful (rated) heat output 34,4 44,2 56 68 88 95 110 129 kW
Maximum rated heat output (80-60°C) P4 G20 34,4 44,2 55,7 67,0 88,3 95,3

109,8 129,0

kW

Maximum rated heat output (50-30°C) - G20 38,0 48,8 61,9 73,9 97,4

105,1 121,1 142,1

kW

Maximum nominal heat output (60­40°C)

- G20 36,6 47,0 59,6 71,4 93,8

101,1 116,2 137,3

kW

30% heat output with return at 30°C P1 G20 11,5 14,7 18,7 22,3 29,4 31,7 36,6 43,0 kW
Minimum rated heat output (80-60°C) - G20 8,9 8,9 13,5 13,5 19,2 19,2 22,1 26 kW

Efciency class in central heating mode A A A A - - - -
Seasonal energy efciency in central

heating mode

ηs

94 94 94 94 94 94 94 94 %

Efciency at rated heat input and High

temperature GCV (NCV) regime

η4

useful Pn

(60-80°C)

88,5

(98,4)

88,4

(98,3)

88,4

(98,3)

88,2

(97,9)

88,3

(98,0)

88,2

(97,9)

88,6

(98,3)

88,2

(97,9)

%

Efciency at 30% of the nominal ther­mal ow and on low PCS temperature

regime

η1

useful

30% of

Pn

98,4

(109,5)

98,2

(109,2)

98,2

(109,2)98(108,8)

98,1

(108,9)98(108,8)98(108,8)

98,1

(108,9)

%

Chimney losses with burner on at max. Pn (80-60°C) 2,3 2,3 2,3 2,3 2,5 2,6 2,5 2,6 %
Chimney losses with burner on at max. 30% Pn (50-

30°C)

0,5 0,5 0,5 0,5 0,6 0,6 0,5 0,6 %

Heat loss in standby mode Pstby

45 57 72 87 115 124 143 168 W

0,1 %
Annual energy consumption QHE 71 91 117 141 - - - - GJ
Noise level (sound power)

LWA

at P max 51 52 53 54 55 56 57 57 dB(A)

Emissions (*)

NOx

(referred

to HCV)

42,0 43,9 34,2 36,4 38,1 38,7 39,3 46,1

mg/

kWh

Emissions at max./min. heat input,
G20

CO

2 9 - 9 %

CO

63/2,3 73/2,3 79/6,5 90/6,5 81/7,5

91,5/7,5

89/4,6

91,5/5,6

ppm
Maximum rated heat input (LCV) G25 35 50 53 65 85 93 107 127 kW
Minimum rated heat input (LCV) G25 9 9 13 13 18,1 18,5 21,4 24,5 kW

Emissions at max./min. heat input,
G25

CO

2 9 - 9 %

CO

72/3,2 80/3,2

92/7

93,5/7

84/8 94/8 92/6 95/7 ppm

Emissions at max./min. power G30

CO

2 10,4-9,9 10,4-10,4 %

CO

132/6 137/6

138/10 142/10 148/11 159/11 172/13 180/15

ppm

Emissions at max./min. power G31

CO

2 10,4-9,9 10,4-10,4 %

CO

136/8 141/8

142/11 147/11 153/12 163/12 177/14 185/16

ppm
Flue gas temperature at max. power and min. power

80-60°C

66,5/61 67,5/61

71/61 72/61 76/62 78/62 75/61 77/61

°C

Flue gas temperature at max. power and min. power
50-30°C

44/32 45/32 45/33 46/33 47/35 49/35 45/33 48/35

°C

Flue gas mass ow rate (**)

0,015

0,02

0,025

0,03 0,04

0,046

0,05 0,06 Kg/s

(*)

Weights calculated according to EN 15502.

(**)

Values referred to atmospheric pressure at sea level.

11

Description

POWER MAX

U.M.

50 P
DEP

50 P 65 P 80 P 100 110 130 150

Water-side resistance (∆T 20°C)

- - - - 160 210 350 510 mbar

Available useful discharge head (∆T 20°C)

420 250 490 390 - - - - mbar
Maximum working pressure 6 bar
Minimum supply pressure 0,7 bar
Maximum permitted temperature 100 °C
Lockout thermostat activation temperature 95 °C
Adjustment temperature (min / max) 30 / 80 (***) °C
Thermal module water content 5 5 15 15 17 17 23 25 l
Maximum condensation at 100% rated heat output

(50-30°C)

5,4 7,0 8,9 10,1 13,6 15,0 17,5 19,8 l/h

Power supply 230-50 V-Hz
Index of protection IPX4D IP
Consumption at full load Elmax 75 105 63 77 150 203 205 302 W
Consumption at part load Elmin 31 34 30 30 36 31 44 45 W
Electrical consumption in standby

mode

Psb 9 9 13 13 6 6 6 8 W

(***)

Up to 85°C if combined with the plate heat exchanger accessory.

1.8 Pumps

The thermal modulesPOWER MAX 50 P DEP, POWER MAX

50 P, POWER MAX 65 P and POWER MAX 80 P are tted

with a circulator.

Residual head (mbar)

0

100

200

300

400

500

600

700

800

900

0 1,5 2 2,5 3 3,510,5 4

POWER MAX 65 P
POWER MAX 80 P

POWER MAX 50 P DEP

POWER MAX 50 P

Flow-rate (m3/h)

b

At the rst start-up, and at least once a year, the rota­tion of the circulator shaft should be checked as, es­pecially after long periods of not being operated, de­posits and/or residuals could impede its free rotation.

b

Before loosening or removing the circulator cap, pro­tect the electric devices located underneath from any
water that exits.

a

It is prohibited to operate the circulators without wa­ter.

Thermal modules POWER MAX 100, POWER MAX 110,
POWER MAX 130 and POWER MAX 150 are not equipped
with a circulator, which must be inside or outside the appli­ance (see accessories).
For its sizing, consider the thermal module's water-side
pressure drops, which are shown in the chart below.

Water-side pressure drop

Pressure drop (mbar)

0

100

200

300

400

500

600

700

800

900

1000

0 3 4 5 6 7 8 921

POWER MAX 110
POWER MAX 100

POWER MAX 130

POWER MAX 150

Flow-rate (m3/h)

12

1.9 Water circuit

2

9

MIRI

1 6 7 8

3

4

5

1

Heat exchanger

2

Circulator (only for models POWER MAX 50 P
DEP - POWER MAX 80 P)

3

Drain cock

4

Minimum pressure switch

5

NTC return probe

6

NTC delivery probe

7

Safety thermostat temperature sensor

8

Automatic bleed valve

9

Flow-meter

MI

Central heating ow

RI

Central heating return

Values of NTC probes' resistors with changing temper­atures.

Temperature

°C

Tolerance test

±10%

Resistor

Ω

Temperature

°C

Tolerance test

±10%

Resistor

Ω

-40 191908 45 4904

-35 146593 50 4151

-30 112877 55 3529

-25 87588 60 3012

-20 68471 65 2582

-15 53910 70 2221

-10 42739 75 1918

-5 34109 80 1663
0 27396 85 1446
5 22140 90 1262

10 17999 95 1105
15 14716 100 970
20 12099 105 855
25 10000 110 755
30 8308 115 669
35 6936 120 594
40 5819 125 529

1.10 Positioning the temperature
sensors

Probes placed on the related sockets of the thermal
module (POWER MAX 50 P DEP - POWER MAX 50 P):

1

Exhaust ue probe

2

Safety thermostat temperature sensor

3

CH ow temperature sensor

4

Return probe

1

4

1

3

2

Front view Side view

Probes placed on the related sockets of the thermal
module (POWER MAX 65 P ÷ POWER MAX 150):

1

Exhaust ue probe

2

Safety thermostat temperature sensor

3

CH ow temperature sensor

4

Return probe

3
2

2

3

1

1

4

Front view Side view

13

1.11 Control panel

CONTROL PANEL AND SYMBOLS

PROG

RESET

MENU

1

2

4

3

3

1

Rear light display

2

MENU/Reset key: access to the main menu and restore functioning further to a failure lock-out

3

Navigation keys

4

Main switch (located on the lower part of the appliance)

SECONDARY INFORMATION/DISPLAY VISUALISATION

8.8:8.8

8.8:8.8

OUTSIDE

°C
°F

BAR
PSI

1 2 3 4 5 6

89

7

10

1

Icon displayed when heating mode is enabled. Blinking when there is a heat demand

2

Icon displayed when DHW mode is enabled. Blinking when there is an DHW Demand

3

Icon displayed when entering the "Installer" or "Manufacturer" menu

4

Icon displayed when the appliance burner is on

5

Icon displayed when a Permanent or Temporary error occurs

6

Icon displayed when the climatic mode is on (Par. 2001= 1 o 2)

7

Celsius/Fahrenheit temperature

8

Large numeric display: current value

9

Small numeric display: system pressure display or parameter number

10

Icon displayed when the outdoor probe is connected

14

2 INSTALLATION

2.1 Unpacking the product

The thermal module

POWER MAX

is shipped palletised,
packaged and with cardboard protections.
The following material is supplied in a plastic envelope in­side the package (1):

- Instruction manual

- Warranty information leaet B

- LPG conversion kit

- Wall-mounting bracket with plugs (no.4 plugs s=10
mm suitable for concrete, brick, compact stone and
concrete hollow brick walls)

- Hydraulic test certicate

- Energy Efciency Label (for models <70kW)

2.1.1 Positioning of labels

A

A

CALDAIA MURALE A GAS
WALL HUNG GAS BOILER
CHAUDIERE MURALE A GAZ
GAS - WANDHEIZKESSEL

IT

GB

FR

D

CALDAIA MURALE A GAS
WALL HUNG GAS BOILER
CHAUDIERE MURALE A GAZ
GAS - WANDHEIZKESSEL

IT

GB

FR

D

1

A

Packing label

b

The instruction manual is an integral part of the ap­pliance; therefore, it should be read and stored care­fully.

b

Keep the documentation envelope in a safe place.
Any replacement documents must be ordered from
Beretta who reserve the right to charge for the cost of
the replacement.

2.2 Overall dimensions and weights

P

H

L

Descrip­tion

POWER MAX

50 P
DEP

50 P 65 P 80 P

L 600 600 600 600 mm
P 435 435 435 435 mm
H 1000 1000 1000 1000 mm
Net weight 65 65 70 64 kg

Descrip­tion

POWER MAX

100 110 130 150

L 600 600 600 600 mm
P 435 435 435 435 mm
H 1000 1000 1165 1165 mm
Net weight 78 78 90 95 kg

15

2.3 Installation premises

The thermal module

POWER MAX

can be installed in rooms
that are permanently ventilated and equipped with suitably
sized ventilation openings in line with Technical Standards
and Regulations applicable to the installation site.

b

When installing the boiler, allow sufcient space

around it to access all safety and control devices and
to permit easy maintenance.

b

Check that the electric protection level of the appli­ance is suitable for features of the room where it is
installed.

b

Make sure that comburent air is not contaminated by

substances containing chlorine or uorine (elements

found in sprays, paints, detergents etc.).

a

Do not obstruct or restrict the air vents in the room
where the boiler is installed. A free air supply is es­sential for correct combustion.

a

It is forbidden to leave ammable containers and

substances in the room where the thermal module is
installed.

2.3.1 Recommended minimum distances

Clearances for the assembly and the maintenance of the

appliance are shown in the gure.

≥ 1 m

≥ 0,85 m

≥ 0,4 m

≥ 0,5 m

≥ 0,5 m

The minimum surface of ventilation openings is 3,000 cm2
for gas fuel heating systems.

2.4 Installation in older systems and
systems requiring modernisation

When installing these boilers in older systems or systems
requiring modernisation, always perform the following
checks:

- Make sure that the ue is able to withstand the tem­perature of the combustion gases and that it has been
designed and made in compliance with applicable
standards. The ue must also be as straight as pos­sible, sealed, insulated and not blocked or choked.
See Paragraph "Discharge of combustion products"
for any additional information.

- Make sure that the electrical supply system has been

installed by a qualied electrician in compliance with

applicable standards

- Make sure that the fuel feed line and any storage tank
are made and installed in compliance with applicable
standards

- Make sure that expansion vessels are big enough to
contain the additional volume generated by thermal
expansion

- Make sure that the ow rate, head and direction of

ow of the pumps are suitable and correct

- The system has been washed, cleaned of mud and
grime and water seals have been checked

- A treatment system is tted when the supply/rell
water has values other than those indicated in Para­graph "Water quality requirements"

b

The manufacturer declines all responsibility for dam-

age caused by incorrectly constructed ue systems.

16

2.5 Moving and removing the
packing

b

Do not remove the cardboard packaging until your
reach the installation location.

b

Before handling the appliance and removing the
packaging, wear PPE and use tools suitable for the
appliance's size and weight.

b

This step must be carried out by several individuals
equipped with suitable means with respect to the ap­pliance's size. Make sure that the load is not unbal­anced during handling.

Proceed as follows to remove the packing:

- Remove the strapping that secures the cardboard
packaging to the pallet

- Remove the cardboard

- Remove edge protectors (1)

- Remove the Styrofoam protection (2)

- Remove the protective bag (3)

3

1

2

1

1

2.6 Thermal module assembly

Thermal modules

POWER MAX

are supplied complete with

a wall-mounting bracket.

b

Check that the wall on which the appliance is to be
tted is sufciently solid and supports safe screw x­ing points.

b

The appliance's height must be selected so as to fa­cilitate dismantling it and maintaining it.

H

Model Height (H) mm

POWER MAX 50 P DEP 1850<H<2000
POWER MAX 50 P 1850<H<2000
POWER MAX 65 P 1850<H<2000
POWER MAX 80 P 1850<H<2000
POWER MAX 100 1850<H<2000
POWER MAX 110 1850<H<2000
POWER MAX 130 2000<H<2150
POWER MAX 150 2000<H<2150

For installation:

- Position the bracket (1) onto the wall (2), at the point
where you wish to install the appliance

- Ensure that the bracket is horizontal and mark the

points where the holes for xing plugs must be drilled

- Drill the holes and insert expansion plugs (3)

- Fix the bracket to the wall using the screws (4)

- Secure the appliance onto the bracket

1

2

3

4

17

After installing the thermal module:

- remove the locking screw

- pull the front panel outwards and then to the top to
decouple it from points A.

A

A

Locate the envelope containing the product documentation

and stick the Energy Efciency Label (if any) contained in

the envelope onto the panel.

25 kW

30 mm

25 mm

Close the panelling in reverse order to the one described
above.

b

Before proceeding with the hydraulic connections the
protection plugs must be removed from the delivery,
return and condensate drain piping.

18

2.7 Water connections

The dimensions and position of thermal module's hydraulic connections are shown in the table below.

Front view Bottom view

RI MI

B

A

F

H

C

D

E

RI G MI

SC

DESCRIPTION

POWER MAX

50 P
DEP

50 P 65 P 80 P 100 110 130 150

A 387 387 387 387 387 387 387 387 mm
B 143,5 143,5 143,5 143,5 143,5 143,5 143,5 143,5 mm
C 63,5 63,5 63,5 63,5 63,5 63,5 63,5 63,5 mm
D 283,5 283,5 283,5 283,5 283,5 283,5 283,5 283,5 mm
E 98,5 98,5 98,5 98,5 98,5 98,5 98,5 98,5 mm
F 92,5 92,5 92,5 92,5 92,5 92,5 92,5 92,5 mm
H (optional 3-way valve

attachment)

202,5 202,5 - - - - - - mm

MI (system ow)

G 1" 1/2 MG 1" 1/2 MG 1" 1/2 MG 1" 1/2 MG 1" 1/2 MG 1" 1/2 MG 1" 1/2 MG 1" 1/2

M

Ø

RI (system return)

G 1" 1/2 MG 1" 1/2 MG 1" 1/2 MG 1" 1/2 MG 1" 1/2 MG 1" 1/2 MG 1" 1/2 MG 1" 1/2

M

Ø

SC (condensate drain) 25 25 25 25 25 25 25 25 Ø mm
G (gas inlet) G 1" M G 1" M G 1" M G 1" M G 1" M G 1" M G 1" M G 1" M Ø

b

Before connecting the thermal module the protection
plugs must be removed from the delivery, return and
condensate drain pipes.

b

Before connecting the thermal module, it is neces­sary to clean the system. This step is absolutely re­quired when the appliance replaces another one on
pre-existing systems.

In order to carry out this cleaning activity, if the old genera­tor is still installed on the system, it is advisable to:

- add a de-scaling additive.

- Operate the system with the generator on for around
7 days.

- Discharge dirty system water and ush the system
one or more times with clean water.

If the system is very dirty, repeat the last procedure one
more time.
If the old generator is not present or available, use a pump
to circulate the water + additive through the system for

about 10 days and perform a nal washing as described in

the previous paragraph.
Once the cleaning has been completed, it is recommend-

ed to add a suitable protective uid to the system's water

before installing the thermal module.
In order to clean the heat exchanger's built-in water sys­tem, please contact Technical Assistance Centre

B.

a

Do not use incompatible liquid detergents, including
acids (for instance, chloridric acid and similar) in any
concentration.

a

Do not subject the heat exchanger to cyclical pres­sure changes because fatigue stress is very danger­ous for the integrity of system components.