LIGHT COMMERCIAL BOILERS - Immergas

LIGHT COMMERCIAL 

LIGHT 

COMMERCIAL 

BOILERS

INTRODUCTION 

Portrait of a market leader 

in a steady growth 

Immergas is the leading company in the 

Italian market of gas heating boilers. In 

the headquarters of Brescello work 

more than 700 people, spread over an 

area of 50,000 sq.m. 

In 2008 Immergas sold more than 

300.000 appliances; the turnover was 

240 million euro, more than 55% of 

which on the international market. 

The range of products is continuously 

widening, in order to satisfy all market 

requests. At the moment Immergas 

offers more than 70 models, 

wall-mounted or floor standing, 

instantaneous, for outdoor installation, 

condensing, with sealed chamber. 

An extremely wide choice with a 

common characteristic: the research 

for reliability, long-life, convenience. 

2 

IMMERGAS: NOw AvAILABLE 

IN 30 COUNTRIES 

Immergas presence on the international 

market has been increasing year after 

year. Today the brand is available in 

more than 30 countries; the company 

structure includes 9 branches in Europe 

and one in China, as well as shares in 

significant import firms all around the 

world. 

Immergas is deeply investing in 

promotion and communication, with 

the aim of supporting the brand and 

penetrating new markets. From Asia 

to South America the company is 

steadily expanding, with a policy based 

on quality, vanguard products and 

accurate service.

LOw EMISSIONS AND 

ECO-fRIENDLy PRODUCTS: 

PLANET EARTH SAyS 

THANkS 

Immergas pays great attention to 

nature and environment. Our Research 

and Development Department is more 

and more eco-oriented: this investment 

in terms of staff and resources is our 

contribution to make the world a 

cleaner space. 

When projecting new models, the 

search for energy saving is always 

the main issue, in order to reduce 

energy consumption and pollutant 

emissions. In Italy, Immergas is leader 

in the segment of condensing boilers, 

which offer up to 30% energy saving as 

compared to traditional ones. 

INTRODUCTION 

CONDENSE AND ENjOy 

A condensing boiler is an eco-friendly 

boiler. The special burner allows to 

lower pollutant emissions such as 

carbon monoxide (CO) and nitrogen 

oxides (NOx), two of the main 

responsible of air pollution. In fact, 

condensing boilers belong to class 5, 

the most environment-friendly class 

established by the European standards 

(UNI EN 297 e UNI EN 483). 

Condensing boilers have an advanced 

modulating system which can perfectly 

adjust the heat output to the real needs 

of the heating system. The modulating 

range, wider than in traditional boilers, 

ensures the right comfort and wellness 

inside the house, in all different climatic 

situations throughout the year. 

3

.01 

INTRODUCTION 

4 

.01 

10 kW 920 kW 

Modulating range 

POwER: fROM 10 UP TO 920 kw! 

Light commercial VICTRIX range is composed by wall-hung condensing boilers with heat 

outputs from 50 to 115 kW, designed by Immergas to satisfy different kinds of installation 

exigencies. 

The high efficiency ratings achieved are ideal when it comes to heating large volumes domestic 

systems (such as semi-detached houses or apartment blocks) and for commercial and 

industrial uses. 

Light commercial VICTRIX models are heating only appliances, pre-engineered to operate both 

as single appliances or in cascade, with the advantage of providing a globally higher efficiency 

at lower running costs. 

The wide modulation range characterizing the light commercial VICTRIX models and the 

possibility to manage up to a maximum of 8 appliances in cascade, allow to obtain great 

flexibility in the offer of the available heat outputs.

.02 

Minimum heat output 

Reduced heat output 

Medium heat output 

Maximum heat output 

Example of cascade functioning 

.02 

INTRODUCTION 

THE CASCADE SySTEM 

The cascade system consists in the 

installation of two or more modular 

generators in parallel, connected to a 

control system regulating its functioning 

as if it was a single appliance. 

The total heat output is equal to the sum 

of each single generator output. 

Distributing the heat output on more 

than one unit brings many important 

advantages: 

Higher efficiency compared with 

the use of a single generator of 

great heat output, which would have 

to work with a reduced heating load 

for a good part of the heating period, 

with consequent general lower 

efficiency. 

Less expenses thanks to the better 

efficiency. 

Greater safety as the subdivision 

in more units allows to maintain the 

heating function active even in case 

of maintenance on one of the 

connected appliances. 

Greater flexibility with the possibility 

of distributing the heating request 

on all the appliances, while the 

functioning sequence avoids the fast 

deterioration of one boiler respect 

the other. 

5

.03 

INTRODUCTION 

Cascade and zones regulator Zone manager Modulating room thermostat 

.03 

THE THERMOREGULATION SySTEM 

All light commercial VICTRIX boilers are provided 

with new generation electronics, offering the best 

performances thanks to their regulation flexibility. 

In case of zones systems or cascade systems, 

it will be necessary to pre-arrange an adequate 

thermoregulation device able to manage every single 

appliance and elaborate the information from the 

system, in order to meet the most varied operating 

requirements. 

CASCADE AND zONES REGULATOR 

Central unit of the thermoregulation system, it allows 

to control, monitor and program the operating 

sequence of a maximum of 8 generators in 

cascade. The regulator controls the boiler’s delivery 

temperature adjusting it to the system requirements. 

The regulator can manage up to 3 different zones 

(2 of which at high/low temperature) and a sanitary 

circuit for a separate storage tank. It is also possible 

to install up to 5 regulators in parallel (of which 

only one, called master, will be connected to the 

generators) to control up to a maximum of 15 heating 

zones and 5 storage tanks for the domestic hot 

water production. 

6 

.04 .05 

.04 

zONE MANAGER 

Connected to the cascade and zones regulator, 

it allows to keep the operating appliance and the 

heating system information handy and under control. 

This means that the previously set functioning 

parameters (turn on/off, temperatures, etc.) can be 

easily modified by the user, without having to operate 

on the central regulator. 

.05 MODULATING ROOM THERMOSTAT 

Connected to the cascade and zones regulator, it 

allows the user to regulate the room temperature of 

the single zones into which the system is divided. 

ExTERNAL PROBE 

Connected to the boiler, it allows to optimize the 

energy consumptions automatically adjusting the 

system delivery temperature to suit the outdoor 

temperature variations. 

SySTEM DELIvERy PROBE 

It allows the cascade and zones regulator to manage 

the system temperature. 

SEPARATE STORAGE TANk PROBE 

It allows the cascade and zones regulator to control 

the temperature of a separate storage tank.

Hydraulic manifolds flue systems 

Thermoregulation kits 

Solar collectors 

IMMERSTOR storage tanks 

INTRODUCTION 

THE COMPLETE PACkAGE 

In addition to the light commercial 

VICTRIX boilers, Immergas offers a 

series of kits, specially thought and 

designed to simplify the project and 

installation of a heating system. 

7

THE RANGE 

NEw 

8 

vICTRIx 115 

Wall-hung condensing boiler for heating only

Model 

vICTRIx 115 

Code 

L.G. 

L.P.G. 

3.020426 

3.020426GPL 

Heat 

output 

kw 

Efficiency Condensing/ 

rating premixed 

(D.P.R. 660/96) burner 

Reduced pollutant 

emissions 

(NOx-CO) 

Protection 

index 

THE RANGE 

vICTRIx 115 

Open chamber fan assisted wall-hung condensing boiler for heating only, equipped with circulator and safety valve. 

The boiler is approved for installation in both indoor heating plants and outside buildings, without requiring additional 

protection. It can be installed as single appliance or in cascade. 

The generator is equipped with electronic board, allowing to adjust the functioning parameters of the appliance to the 

specific exigencies of every single system. 

Nominal heat output of 109 kW 

Minimum heat output of 29 kW 

Compact dimensions 

Stainless steel condensing module 

4 bar safety valve with discharge funnel 

Double NTC probe for optimum temperature control 

IPX5D protection index 

Frost protection up to -5 °C 

Control board with visual display 

Autodiagnosis system 

Possibility to connect a separate storage tank unit 

Model Height width Depth 

vICTRIx 115 1010 mm 600 mm 610 mm 

frost 

protection 

109,0 4 stars • • IPX5D -5 °C 

Main options Code 

External sensor 3.015266 

Three-way valve kit 3.015223 

Hydraulic manifold kit 3.015224 

Main flue kits Code 

Terminal horizontal outlet kit Ø 80 3.015255 

Terminal vertical outlet kit Ø 80 3.015256 

Horizontal concentric kit Ø 80/125 3.015242 

For good performance and safe operation use Immergas “Green Series” pipes and terminal flue outlet only. 

0051BO2448 9

THE RANGE 

NEw 

10 

vICTRIx 90 


vICTRIx 90 



protection. It can be installed as single appliance or in cascade. 

The generator is equipped with electronic board, allowing to adjust the functioning parameters of the appliance to the 

specific exigencies of every single system. 


Minimum heat output of 22,5 kW 












Model 

vICTRIx 90 

Code 

L.G. 

L.P.G. 

3.020425 

3.020425GPL 

Heat 

output 

kw 



(D.P.R. 660/96) burner 


emissions 

(NOx-CO) 

Protection 

index 

frost 

protection 

90,0 4 stars • • IPX5D -5 °C 










THE RANGE 

0051BO2448 11

THE RANGE 

12 

vICTRIx 75 


Model 

vICTRIx 75 

0051BO2448 

Code 

L.G. 

L.P.G. 

3.018511 

3.018511GPL 

Heat 

output 

kw 



(D.P.R. 660/96) burner 


emissions 

(NOx-CO) 

Protection 

index 

THE RANGE 

vICTRIx 75 



protection. It can be installed as single appliance or in cascade. The generator is equipped with electronic board, allowing 

to adjust the functioning parameters of the appliance to the specific exigencies of every single system. 

Nominal heat output of 72,6 kW 













frost 

protection 

72,6 4 stars • • IPX5D -5 °C 










13

THE RANGE 

14 

vICTRIx 50 


THE RANGE 

vICTRIx 50 



protection. It can be installed as single appliance or in cascade. The generator is equipped with electronic board, allowing 

to adjust the functioning parameters of the appliance to the specific exigencies of every single system. 














Model 

vICTRIx 50 

Code 

L.G. 

L.P.G. 

3.016359 

3.016359GPL 

Heat 

output 

kw 



(D.P.R. 660/96) burner 


emissions 

(NOx-CO) 

Protection 

index 

frost 

protection 

50,0 4 stars • • IPX5D -5 °C 










0051BO2448 15

1086 

TECHNICAL DATA 

Dimensions and connections 

vICTRIx 115/90 

Head (kPa) 

1010 

110 

100 

90 

80 

70 

60 

50 

40 

30 

20 

10 

982 

905 

70 

V 

300 300 

ø80 

SC 

105 

G 

390 105 

M R 

vICTRIx 115 flow rate/head graph 

0 

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 

Flow rate (l/h) 

Available head in the system: 

11.22 

10.20 

9.18 

8.16 

7.14 

6.12 

5.10 

4.08 

3.06 

2.04 

1.02 

0 

at top speed with single boiler 

at second speed with single boiler 

at top speed with non return valve for boilers in cascade 

at second speed with non return valve for boilers in cascade 

16 

140 

134 

Head (mH O) 

2 

253 

315 

340 

Head (kPa) 

90 

80 

70 

60 

50 

40 

30 

20 

610 

190 

key 

V 

M 

SC 

G 

R 

Electrical connection 

System delivery 

Condensate drain 

Gas supply 

System return 

Hydraulic connections 

Gas Heating Condensate drain 

G R M SC 

VICTRIX Quota 115 kit orizzontale 1” 1 ½” 

tiraggio forzato Ø 80 

1 ½” 13 mm 

VICTRIX 90 ¾” 1 ½” 1 ½” 13 mm 

136 

Quota kit orizzontale 

Horizontal coassiale Ø concentric 

80/125 

kit Ø 80/125 

vICTRIx 90 flow rate/head graph 

Horizontal tiraggio forzato outlet Ø 80 

kit Ø 80 

10 

1.02 

0 

0 

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 3800 4000 4200 


160 

110 


9.18 

8.16 

7.14 

6.12 

Quota kit orizzontale 5.10 

coassiale Ø 80/125 

4.08 

3.06 

2.04 

Head (mH O) 

2

Head (kPa) 

Dimensions and connections 

vICTRIx 75/50 

1010 

90 

80 

70 

60 

50 

40 

30 

20 

10 

950 

905 

70 

V 

150 

SC 

ø 80 232 

105 

G 

390 105 

M 

600 

R 


Available head in the system: 

190 

220 

0 0 

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 3800 

at top speed with single boiler 

at second speed with single boiler 

at top speed with non return valve for boilers in cascade 

at second speed with non return valve for boilers in cascade 

285 

525 

9.18 

8.16 

7.14 

6.12 

5.10 

4.08 

3.06 

2.04 

1.02 

Head (mH O) 

2 

key 

V 

M 

SC 

G 

R 

Electrical connection 

System delivery 

Condensate drain 

Gas supply 

System return 

Hydraulic connections 

Gas Heating Condensate drain 

G R M SC 

¾” 1 ½” 1 ½” 13 mm 


tiraggio forzato Ø 80 

Horizontal Quota kit orizzontale concentric 


kit Ø 80/125 

Head (kPa) 

90 

80 

70 

60 

50 

40 

30 

20 


Horizontal tiraggio forzato outlet Ø 80 

kit Ø 80 

vICTRIx 75 flow rate/head graph vICTRIx 50 flow rate/head graph 

200 

136 

10 

1.02 

0 

0 

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 

170 


110 


9.18 

8.16 

7.14 

6.12 

Quota kit orizzontale5.10 


4.08 

3.06 

2.04 

17 

Head (mH O) 

2


Unit of 

measurement 

vICTRIx 50 vICTRIx 75 vICTRIx 90 vICTRIx 115 

Maximum nominal heat input kW 50,8 74,6 92,3 110,7 

Minimum nominal heat input kW 10,4 18,5 23,0 29,4 

Maximum nominal heat output (80/60 °C) kW 50,0 72,6 90,0 109,0 

Maximum nominal heat output (40/30 °C) kW 54,4 79,8 100,3 120,3 

Minimum nominal heat output (80/60 °C) kW 10,0 18,1 22,5 28,8 

Efficiency at nominal heat output (80/60 °C) % 98,5 97,3 97,5 98,4 

Efficiency at minimum heat output (80/60 °C) % 96,0 97,6 97,8 98,0 





Stack losses with burner on % 1,3 2,3 1,8 1,8 

Stack losses with burner off % 0,02 0,01 0,01 0,01 

Casing losses with burner on % 0,2 0,4 0,7 0,2 

Casing losses with burner off % 0,47 0,32 0,41 0,28 

Gas consumption at nominal heat output with 

natural gas 

m 3 /h 5,37 7,90 9,77 11,72 

Fumes temperature at max. nominal heat input °C 41 62 52 52 

Fumes temperature at min. nominal heat input °C 47 48 49 45 

Fumes flow rate at max. nominal heat input kg/h 81 120 148 175 

Fumes flow rate at min. nominal heat input kg/h 17 31 38 49 

CO2 at maximum heat input % 9,3 9,2 9,3 9,45 

CO2 at minimum heat input % 9,2 8,9 9,1 8,95 

CO at maximum heat input with 0% of O2 ppm 130 170 180 175 

CO at minimum heat input with 0% of O2 ppm 5 7 10 8 

NOx at maximum heat input with 0% of O2 mg/kWh 69 53 37 49 

NOx at minimum heat input with 0% of O2 mg/kWh 28 28 14 20 

Weighted CO mg/kWh 37,6 43,0 20,0 19,0 

Weighted NOx mg/kWh 38,5 40,0 23,3 28,0 

NOx class - 5 5 5 5 

Central heating temperature range °C 20–85 20–85 25–85 25–85 

Maximum heating temperature °C 90 90 90 90 

Maximum operating pressure bar 4,4 4,4 4,4 4,4 

Available head with 1000 l/h flow rate 

Dimensions 

kPa 55,4 65,5 87,7 92,18 

Height mm 950 950 1010 1010 

Width mm 600 600 600 600 

Depth mm 525 525 610 610 

Electrical supply V/Hz 230/50 230/50 230/50 230/50 

Nominal power draw A 0,85 1,26 1,69 1,80 

Installed electric power W 180 270 370 390 

Fan power consumption W 59 72 102 117 

Circulator power consumption W 115 168 238 242 

Protection index IP X5D X5D X5D X5D 

Boiler water content litres 3,7 4,0 10,1 11,7 

Full appliance weight Kg 66 72 107 117,2 

18

VICTRIX 115/90 main dimensions and connections 

2035 

1851 

140 

251 

610 

253 

1 

/2 G 2 ” 

200 169 182 385 905 170 

220 222 390 

160 

200 170 184 

395 

982 

1 

G 1 /2 ” 

G 1 ” 

G 1” 

1 

G 1 /2 ” 

1 

G 2 /2 ” 

390 

110 

1 

G 2 /2 ” 

110 

1 

G 2 /2 ” 

1 

G 1 /2 ” 

G 1 ” 

1 

G 1 /2 ” 

3 

G /4 ” 

3 

G /4 ” 

G 1” 

SINGLE INSTALLATION 

VICTRIX 75/50 main dimensions and connections 19


Gas supply 

7 

2 

1 

Condensate 

Drain 

6 

4 

5 

11 

System filling 

8 

9 

10 

12 

15 

16 

Hydraulic scheme 

Single generator for room heating and domestic hot water production with storage tank connected to solar panels 

1 

2 

3 

14 

key 

3 

13 

VICTRIX generator 

Room thermostat 

External probe 

Thermometer trap 

Fuel on-off valve bulb 

ISPESL approved pressure gauge cock 

Fuel on-off valve 

Electrical scheme 

Single generator for room heating and domestic hot water production with storage tank connected to solar panels 

20 

1 

2 

3 

4 

5 

6 

7 

17 

4 

Black 

5 

Orange 

M 

Red 

22 

19 

18 

key 

1 

2 

3 

4 

5 

8 ISPESL approved thermometer 

9 ISPESL approved manually 

reset thermostat 

10 ISPESL approved manually 

reset pressure switch 

11 System circulator 

12 Expansion vessel connection 

13 Expansion vessel 

14 Three way valve 

15 Manifold/mixer 

16 Sludge collecting system filter 

17 External storage tank unit 

18 Storage tank unit probe 

19 Solar panel control unit 

20 Solar panel circulator 

21 Solar panel 

22 Solar panel probe 

20 

21 



Storage tank unit probe 

Room thermostat 

Three way valve

Gas supply 

15 

18 

key 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

1 

6 

1 

Condensate 

Drain 

5 

3 

4 

14 


7 10 







ISPESL approved thermometer 

ISPESL approved manually reset thermostat 

ISPESL approved manually reset pressure switch 

Expansion vessel connection 

ZONE 3 STORAGE TANK UNIT 

ZONE 1 

230 Vac 50Hz 

16 

2 

3 

8 

9 

4 

12 

13 

2 

11 

M 7 M 

Common 

Open 

Close 

5 

17 

6 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

Common 

Open 

Close 

17 

16 

15 15 

M 

19 

ZONE 2 

ZONE 1 

(CMI1) 

Expansion vessel 

Manifold/mixer 

Sludge collecting system filter 

Common delivery probe 

Zone manager 

Zone 1 safety thermostat (CMI-1) 

Zone 1 heating circuit pump (CMI-1) 

Zone 1 temperature probe (CMI-1) 

Zone 1 mixer valve (CMI-1) 



Single generator with high/low temperature zones system and separate storage tank for the domestic hot water production 

8 

9 

key 

1 

2 

3 

4 

5 

6 

7 

8 

9 

18 

10 

11 

21 

20 

M 

23 

27 

ZONE 2 

(CMI2) 

22 

25 

24 

12 13 13 

Zone 3 direct circuit pump (CD) 

Storage tank unit supply pump 








ZONE 3 

(CD) 

26 

14 

A B A B A B 


Single generator with high/low temperature zones system and separate storage tank for the domestic hot water production 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

10 

11 

12 

13 

14 

15 

16 

17 

18 

28 25 





Modulating room thermostat 

Non return valve 


Cascade and zones regulator 


Storage tank unit 





Zone manager 


External main switch 




29 

21 

30

CASCADE INSTALLATION 

2120 

2170 

VICTRIX 115 main dimensions and connections 

22 

400 

982 

200 

330 

400 

200 982 

330 

G 1 1/2" 

ø160 

2995 

510 800 

800 

1 G 1 /2 ” 

1 G 1 /2 ” 

G 1 ” 

1 1 

/2 G 1 /2” 

600 570 


ø160 

G 1 1/2" 

2995 

510 800 

800 

600 

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

G 1 1/2" 

1 G 2 /2” 

ø200 

G 1 1/2" 

1 G 2 /2” 

3~` 1~ 

570 

3 ~ 1~ 

140 

350 

253 

470 

140 

635 

350 

253 

470 

635

2040 

2020 

400 

330 200 

905 

330 200 

905 

365 

G 1 1/2" 


650 800 

600 


ø125 

ø160 

G 1 1/2" 

2995 

510 800 

800 

1 

G 1 /2” G 1 ” 

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

600 570 

3120 460 

800 

1 /2 1/2 

1 

G 2 /2” 

G 1 1/2" 

G 1 1/2" 

G 1 ” 

3% 

3~` 1~ 

570 


232 

220 

232 

220 

460 

435 

598 

435 

600 

23


Condensate 

Drain 

Gas supply 

15 

key 

1 

2 

3 

4 

5 

6 

1 


System shut off knob 





4 

4 

1 

2 

2 

3 

1 1 

1 1 1 

2 

2 

3 

2 

2 

2 

3 

2 

2 

2 

2 

3 

6 

6 


ZONE 3 STORAGE TANK UNIT ZONE 1 ZONE 2 

17 

2 

230 Vac 

50Hz 

3 

16 

Common 

Open 

Close 

5 

2 

3 

4 

8 

6 

M 7 M 

3 

5 

Common 

Open 

Close 

18 18 18 18 

7 

8 

9 

10 

11 

12 

7 

7 







11 

11 

8 9 

12 

13 

8 9 

12 

13 

9 

10 

10 

10 

11 

16 

14 

15 

20 

19 

17 17 

ZONE 1 

(CMI1) 

21 

22 26 

23 

ZONE 2 

(CMI2) 

3 

24 

28 

18 

ZONE 3 

(CD) 

25 27 

Address 0 Address 1 Address 2 Address 3 Address 4 Address 5 

12 

13 13 

14 

A B A B A B 

18 

key 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 





Zone manager 
















Double battery of generators with high/low temperature zones system and separate storage tank for the domestic hot water production 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

29 3 

18 

30 













Zone manager 







Double battery of generators with high/low temperature zones system and separate storage tank for the domestic hot water production 

24 

31

key 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 


System shut off knob 
















ZONE 3 STORAGE TANK 

UNIT 

1 2 

3 

230Vac 

50Hz 

Condensate 

drain 

Gas supply 

4 

Common 

Open 

Close 

1 

ZONE 1 

5 

7 

2 

8 

Common 

Open 

Close 

2 

3 

2 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

1 1 

Zone manager 










2 

3 

2 

2 

3 

6 


5 

7 8 9 

13 

13 

ZONE 2 

14 

ZONE 3-1 STORAGE TANK 

UNIT 

ZONE 1-1 ZONE 2-1 

Address 0 Address 1 Address 2 

9 

11 

12 

13 

Common 

Open 

Close 

10 

16 

32 

14 

15 

Common 

Open 

Close 

21-1 

21 

18-1 18-1 19-1 

20-1 

23-1 

20 

23 

32 

28 

29 

30 

31 

32 

ZONE 1 

(CMI1) 

22-1 

17-1 

18 18 

ZONE 1 

(CMI1) 

22 





balancing valve 

25-1 

25 

24-1 

27-1 

24 

27 

ZONE 2 

(CMI2) 

ZONE 2 

(CMI2) 

17 

3 

19 

3 

ZONE 3 

(CD) 

26-1 28-1 

ZONE 3 

(CD) 

26 28 


Battery of generators with 6 high/low temperature zones systems and 2 separate storage tanks for the domestic hot water production 

15 

16 

18 

17 

10 

11 

A B A B A B 

7-1 11-1 

A B A B 

2-1 

M M M M 

6 

18 

18 

12 

16-1 

1-1 

3-1 

4-1 

5-1 

6-1 

8-1 

9-1 

10-1 

13-1 13-1 


Battery of generators with 6 high/low temperature zones systems and 2 separate storage tanks for the domestic hot water production 

key 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 












11 

12 

13 

14 

15 

16 

17 

18 

A B 

14-1 

29-1 3 

31-1 

29 3 

Zone 2 temperature 

probe (CMI-2) 


Zone manager 






30 

30 

25 

31

fLUE SySTEMS 


All light commercial VICTRIX models are standard provided 

in B23 configuration (open chamber, fan assisted) but they 

can work also as sealed chamber fan assisted (C type) 

using the special kits supplied by Immergas. 

To correctly install the boiler, it is necessary to use the original 

Open chamber fan assisted 

installation (B23 type) 

26 

Immergas “Green Series” flue systems; these components 

and accessories are specially designed to guarantee higher 

resistance to corrosion and fast and easy installation, thanks 

also to the push-fit assembly and special gasket seals. 

Description Code 

Horizontal kit Ø 80 (to discharge in the chimney) 3.015254 


(to discharge horizontally) 


4 extension pipes Ø 80 kit 0,5 m long 3.014642 

4 extension pipes Ø 80 kit 1 m long 3.012088 

1 extension pipe Ø 80 2 m long 3.016837 

4 x 90° bends Ø 80 kit 3.012091 

45° bend Ø 80 kit 3.012092

Sealed chamber fan assisted 

installation (C type) 

fLUE SySTEMS 



Vertical concentric kit Ø 80/125 3.015243 

Flashing kit Ø 80/125 for flat roof 3.015249 

Extension pipe kit Ø 80/125 2 m long 3.015246 

Extension pipe kit Ø 80/125 1 m long 3.018667 

87° bend kit Ø 80/125 3.015247 

2 x 45° bend kit Ø 80/125 3.015248 

27

fLUE SySTEMS 


In case of cascade systems in B23 configuration (open 

chamber, fan assisted), it is necessary to use a special flue 

manifold with a non-return device (flue locks) supplied by 

Immergas, so that the combustion products of one working 

boiler do not interfere with the combustion circuit of the not 

working boilers. 

vICTRIx 115 Description Code 

Exhaust manifold kit with flue locks Ø 160 for 2 boilers 3.020476 

in cascade (including a condense draining siphon) 

Exhaust manifold kit with flue lock Ø 200 with adapter 3.020954 

for the additional boiler 

vICTRx 90/75 Description Code 

28 



Exhaust manifold kit with flue lock Ø 160 3.020701 

for the additional boiler

fLUE SySTEMS 

vICTRIx 50 Description Code 



Exhaust manifold kit with flue lock Ø 125 3.015241 

for the additional boiler 

Extension pipe Ø 125 kit 0,5 m long for flue manifold 3.016370 

Extension pipe Ø 125 kit 1 m long for flue manifold 3.016371 

Extension pipe Ø 125 kit 2 m long for flue manifold 3.015250 

90° bend kit Ø 125 mm for flue manifold 3.016179 

2 x 45° bend kit Ø 125 mm for flue manifold 3.016180 

Adapter Ø 125/160 for flue manifold 3.016215 

29

MAIN OPTIONS 

CLIMATIC REGULATION 

The climatic accessory range, exclusively designed for light 

commercial VICTRIX boilers, allows the optimization of the 

heating system climatic regulation, both in case of single 

installation and cascade systems. 

The modularity of Immergas regulation system allows to 

30 

customize the installation according to the specific needs. 

Moreover, the cascade and zones regulator offers the 

possibility to control a solar system for domestic hot water 

production. 


Cascade and zones regulator 3.015244 

Wall box for cascade and zones regulator 3.015265 

Zone manager 3.015264 

Modulating room thermostat 3.015245 

Flow probe 3.015267 

Storage tank sensor (for managing the storage 3.015268 

tank as a zone) 

Electrical connection kit for cascade and zones regulator 3.015269 

(to be installed to an external electric panel) 


Anti-freeze protection kit -15 °C 3.015361

HyDRAULIC SySTEM 

The hydraulic kits, especially dedicated to light commercial 

VICTRIX models, are designed to simplify the installation 

operations and to optimize the boiler performances. 

MAIN OPTIONS 

The hydraulic manifolds for the cascade installation are 

provided with intercepting valves allowing the boiler 

maintenance without having to stop the whole system. 

Code 


Safety kit for single boiler (it includes thermometer, 3.015222 

thermometer holder, lock, thermostat with manual reset, 

connection tap for pressure gauge, manual reset 

pressostat, gas intercepting valve trap, expansion vessel 

connection) 

Three-way valve kit connection to a separate storage tank 3.015223 

(it includes the storage tank probe) 

Hydraulic manifold for single boiler (it includes a mud-filter 3.015224 

on the return pipe) 

Hydraulic manifold for 2 boilers in cascade (including 3.015225 

the intercepting valve and the non-return valve for each 

appliance) 

Hydraulic manifold for additional boiler in cascade 3.015226 

(including the intercepting valve and the non-return valve) 

Safety kit for boilers in cascade (it includes thermometer, 3.015227 

thermometer holder, lock thermostat with manual reset, 

connection tap for pressure gauge, manual reset 

pressostat, gas intercepting valve trop, expansion 

vessel connection) 

31

During the life of a boiler, performance is influenced by external factors, 

e.g. water hardness, atmospheric agents, system limiting, etc. 

The published data refers to new products correctly installed and 

used, in accordance with local regulations. N.B. we recommend regular 

periodic maintenance of the appliance. 

Immergas S.p.A. - 42041 Brescello (RE) Italy 

T. +39.0522.689011 - F. +39.0522.689178 

www.immergas.com 

IMMERGAS SPA - ITALY 

CERTIFIED COMPANY 

UNI EN ISO 9001:2000 

Design, manufacture and post-sale assistance 

of gas boilers, gas water heaters and related 

accessories 

Immergas reserves the right to make such changes to its products as are deemed necessary for their evolution, without prior notice. Cod. CE.0419 - rev. 000 (ver. 1214) - 10/09

LIGHT COMMERCIAL BOILERS - Immergas

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