The company

STOKVIS Energy Systems maintenance and after sales service

ENERGY PRODUCTS

High Effi ciency

and Condensing

Gas Fired Boilers

•

Hot Water Plate Heat

Exchanger Packages

•

High Effi ciency Sanitary

Hot Water Packages

•

Dual Fuel Boilers

•

Pressurisation and Booster Sets

•

Direct Gas Fired

Air Heating and

Ventilating Systems

•

Steel Panel and Low

Temperature Radiators

•

Packaged Plant Rooms

•

Since the early 1980’s , STOKVIS Energy

Systems has been acknowledged as the

vanguard in it’s fi eld for both quality of

products and customer service.

It is our dedicated objective to continue

to excel at providing you our customers

and partners with both the products

and services you need in these most

demanding and dynamic times both now

and into the future.

Ivan Thompson

Managing Director

You can be sure that your new Stokvis product is the very best of its type

in design, materials and construction. However to obtain the maximum

benefi ts from your quality product, it is essential that it is maintained at

maximum effi ciency throughout its long working life.

For this reason, STOKVIS Energy Systems provides full UK cover

with factory trained engineers to offer you a total service opportunity

throughout the year.

This ensures that your equipment can be checked, serviced and, if

necessary, adjusted to ensure maximum energy saving performance.

Also, in the unlikely event of a breakdown, repairs can be tackled

speedily and cost effectively – wherever you are in the UK. Just phone,

fax or e-mail STOKVIS Energy Systems for prompt professional attention

to your needs.

STOKVIS INDUSTRIAL BOILERS(INTERNATIONAL) LIMITED96R Walton Road East Molesey Surrey KT8 0DLTELEPHONE 08707 707747 • FACSIMILE 08707 707767Email: info@stokvisboilers.com • Website: http://www.stokvisboilers.com

EFLAME 1202

ECONOFLAMECOMMERCIAL &

INDUSTRIAL BOILERS

EconoFlame A3 03.indd 1 09/12/2002, 16:03:08

R3400 R3600

Type R3401 R3402 R3403 R3404 R3405 R3406 R3601 R3602 R3603 R3604 R3605

Nominal heat output kW 657 729 853 965 1078 1189 kW 631 739 836 934 1031

Nominal heat input (nett. CV) kW 702 784 917 1038 1159 1279 kW 653 764 865 966 1066

Minimum heat output kW 176 196 229 260 290 320 kW 187 218 247 276 305

Gas consumption Gas consumption Gas consumption

natural gas H (10,9 kWh/m3) m³/h 64.5 71.9 84.1 95.2 106.3 117.3 m³/h 59.9 70.1 79.4 88.6 97.8

Propane m³/h 24.6 27.4 32.1 36.3 40.6 44.8 m³/h 22.8 26.7 30.3 33.8 37.3

Water volume ltr 50 53 70 75 80 85 ltr 61 78 83 92 97

Max. working pressure bar 6 6 6 6 6 6 bar 6 6 6 6 6

Gas connection Rp2" Rp2" Rp2" Rp2"DN65PN6

DN65PN6 Rp2" Rp2" Rp2"

DN65PN6

DN65PN6

Water connectionsDN65PN6

DN65PN6

DN80PN6

DN80PN6

DN80PN6

DN80PN6

DN65PN6

DN80PN6

DN80PN6

DN80PN6

DN80PN6

Flue connection mm 300 350 350 400 400 400 mm 300 350 350 400 400

Electrical supply Phase 3 3 3 3 3 3 Phase 3 3 3 3 3

Frequency Hz 50 50 50 50 50 50 Hz 50 50 50 50 50

Fuse A 16 16 20 20 20 20 A 16 16 20 20 20

Dimensions width mm 1330 1330 1130 1130 1330 1330 mm 1330 1130 1130 1330 1330

height mm 1355 1355 1355 1355 1355 1355 mm 1355 1355 1355 1355 1355

length mm 2265 2265 2653 2653 2658 2658 mm 2265 2653 2653 2658 2658

Weight, empty, ± 5 % kg 675 740 840 950 1070 1200 kg 800 900 1010 1160 1290

Table Technical Data

- Heat output measured with : 60 - 80 °C 60 - 80 °C

- Gas consumption at 1013 mbar. 15 °C, dry 1013 mbar. 15 °C, dry

- Gas specifi cation II 2H3P II 2H3P

- Appliance category B23 C53 C33 C63 B23 C53 C33 C63

- Protection degree IP20 IP20

R3400 R3600

ECONOFLAME BOILER RANGE TECHNICAL DATA

1

2

3

4

5

1 Econofl ame boiler2 Power boiler 2-stage fi ring3 Power boiler on-off4 Atmospheric boiler 2-stage5 Atmospheric boiler on-off

Boiler output in %

Effi ciency curves for different types of boilers

Gro

ss t

her

mal

effi

cie

ncy

in %

ECONOFLAME FEATURESA — Integral Draught DiverterB — ServomotorC — Modulated Gas valveD — Gas supplyE — Primary airF — Operating mechanismG — Secondary airH — Flue defl ectorI — CasingJ — Heat exchangerK — InsulationL — Burner barsM — Air diffuserN — Secondary air damper

A

B

C

D

E

FG

H

I

J

K

L

M

N

ECONOFLAME SERIESSince 1985 Stokvis have been offering a range of fully modulating, high effi ciency gas fi red boilers. Researched and developed over the years, evolving through and culminating in the most comprehensive ‘state of the art’ premix, ultra low NOx and condensing range of products :- all exceeding part L Building Regulations; the full range of premix models are ECA listed, as is the R18 atmospheric range.

R2000 & R18 Series Features And Benefi ts•Modulated gas valve and secondary air damper operated by servomotor. • Matching of part load conditions from 100%down to 20%. More effi cient at part loads than conventional boilers, obviating need for many modules. • Gas and secondary air ratios controlled from one source. No possibility of error in control. • Servomotor signals indicate load conditions. Allows boilers to be sequenced for optimum effi ciency. • Damper insulated, preventing downward heat radiation. Obviating requirement for heat absorbent base and helps maintain high effi ciency.

•Atmospheric stainless steel, gas burner. • Quiet in operation. Can be installed in areas where noise restrictions are paramount. • Complete burner including all gas and air controls can be removed on wheels. Easy to maintain, labour costs kept to a minimum. • Primary air controlled by inducement from modulated gas. No need for sophisticated controls and complicated maintenance. • Even secondary air distribution across burner. Ensuring even fl ame and high effi ciency.

•Nine/eighteen tube extruded fi n, copper heat exchanger with stainless steel baffl es. • High conductivity of copper. Meaning minimum size of heat exchanger, maximum output. • Copper resistant to thermal shock. Giving longer lifetime expectancy of heat exchanger (5 year guarantee) • Baffl es give maximum turbulence of fl ue gases. Maximum heat extraction from fl ue gases giving high effi ciency. • Substantially lighter than Cast Iron / Welded Steel boilers. Structural limitations are overcome when boilers are located in roof top plantrooms.

ECONOFLAME BOILERS

The R2200 is a fan assisted model with a two stage burner and is similar in design to the R2000 series.

• Smaller fl ue diameter than the atmospheric boilers. Ideally suited for replacement of cast iron/steel shell pressure jet boilers.

R2200 Effi ciency Figures (weather compensated)

100

99

98

97

96

95

94

93

92

91

90

Effic

ienc

y (n

ett c

v) %

Capacity %50 55 60 65 70 75 80 85 90 95 100

• Effi ciency Curves

EconoFlame A3 03.indd 4 09/12/2002, 16:07:27

R2700 R2900

R2700 R2900

Type R2700 R2701 R2702 R2703 R2704 R2705 R2706 R2707 R2708 R2709 R2900 R2901 R2902 R2903 R2904 R2905 R2906 R2907 R2908 R2909

Nominal heat output kW 95 119 141 178 218 299 374 445 521 597 kW 96 122 153 188 257 322 383 449 514 566

Nominal heat input (nett. CV) kW 101 126 151 190 233 319 400 475 557 638 kW 99 126 158 194 266 333 396 464 532 585

Minimum heat output kW 25 33 38 48 58 80 100 119 139 160 kW 25 33 40 48.5 66 83 100 112 133 146

Gas consumption Gas consumption Gas consumption

natural gas H (10,9 kWh/m3) m³/h 9.3 11.6 13.9 17.4 21.4 29.3 36.7 43.6 51.1 58.5 m³/h 9.1 11.6 14.5 17.8 24.4 30.5 36.3 42.6 48.8 53.7

Propane m³/h 3.5 4.4 5.3 6.6 8.2 11.2 14.0 16.6 19.5 22.3 m³/h 3.5 4.4 5.5 6.8 9.3 11.6 13.8 16.2 18.6 20.5

Water volume ltr 18 18 18 19 20 35 38 41 44 47 ltr 20 20 21 22 39 42 45 48 55 58

Max. working pressure bar 6 6 6 6 6 6 6 6 6 6 bar 6 6 6 6 6 6 6 6 6 6

Gas connection Rp1½" Rp1½" Rp1½" Rp1½" Rp1½" Rp1½" Rp2" Rp2" Rp2" Rp2" Rp1½" Rp1½" Rp1½" Rp1½" Rp1½" Rp1½" Rp1½" Rp2" Rp2" Rp2"

Water connections R2" R2" R2" R2" R2"DN65PN6

DN65PN6

DN65PN6

DN65PN6

DN65PN6 R2" R2" R2" R2"

DN65PN6

DN65PN6

DN65PN6

DN65PN6

DN65PN6

DN65PN6

Flue connection mm 150 150 150 180 200 200 250 250 300 300 mm 150 150 180 200 200 250 250 250 300 300

Electrical supply Phase 3 3 3 3 3 3 3 3 3 3 Phase 3 3 3 3 3 3 3 3 3 3

Frequency Hz 50 50 50 50 50 50 50 50 50 50 Hz 50 50 50 50 50 50 50 50 50 50

Fuse A 10 10 10 10 10 10 10 10 10 16 A 10 10 10 10 10 10 10 10 10 10

Dimensions width mm 830 830 830 830 930 830 830 930 1130 1130 mm 830 830 830 930 830 830 930 1130 1130 1230

height mm 1355 1355 1355 1355 1355 1355 1355 1355 1355 1355 mm 1355 1355 1355 1355 1355 1355 1355 1355 1355 1355

length mm 1535 1535 1535 1535 1535 1918 1918 1908 1908 1908 mm 1535 1535 1535 1535 1918 1918 1908 1908 1908 1958

Weight, empty, ± 5 % kg 325 325 325 340 360 500 525 560 615 645 kg 340 340 355 375 530 555 590 645 705 735

Table Technical Data

- Heat output measured with : 60 - 80 °C 60 - 80 °C

- Gas consumption at 1013 mbar. 15 °C, dry 1013 mbar. 15 °C, dry

- Gas specifi cation II 2H3P II 2H3P

- Appliance category B23 C53 C33 C63 B23 C53 C33 C63

- Protection degree IP20 IP20

ECONOFLAME BOILER RANGE TECHNICAL DATA

ECONOFLAME BOILERS The R2700, R3400 Models

• Premix Fully Modulating boiler• Ultra low NOx• Higher effi ciency than atmospheric models• Smaller footprint than atmospheric models• Smaller fl ue diameter than atmospheric models• Stainless steel construction, high build quality• Integral primary boiler pump• BMS compatible• Semi condensing capability NO MINIMUM return temperature requirements

R300,R2900 & R3600 MODELS• All the features listed above PLUS FULLY CONDENSING EFFICIENCY

ALL EXCEED PART ‘L’ BUILDING REGULATION REQUIREMENTS

ALL INCLUDED ON THE ENHANCED CAPITAL ALLOWANCE (ECA) SCHEMEENERGY TECHNOLOGY PRODUCT LIST.

107106105104103102101100

99989796959493

Effic

ienc

y (n

ett c

v) %

Capacity %25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Effi ciency Figures @ 60° C Flow, 40° C Return.

10710610510410310210110099989796959493

Effic

ienc

y (n

ett c

v) %

Capacity %25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Effi ciency Figures @ 80° C Flow, 60° C Return.

ECONOFLAME R2700 / R2900

Additional CondensingHeat Exchanger(R2900)

Effi ciency Figures

EconoFlame A3 03.indd 3 09/12/2002, 16:07:09

ECONOFLAME BOILER RANGE TECHNICAL DATA

R2000 R18

Type R2017 R2022 R2028 R2034 R2041 R2048 R2056 R2066 R2077 R2090 R2105 R2122 132 154 180 210 244 280

Nominal heat output kW 57.7 74.6 95.8 116.7 139.1 162.7 190.7 222.1 261.1 309.0 361.0 425.0 kW 481 558 649 756 875 1002

Nominal heat input (nett. CV) kW 65.5 84.8 107.7 131.6 158.6 185.5 217.4 253.3 296.2 348.0 403.9 470.7 kW 538 625 727 846 980 1122

Minimum heat output kW - - - - - - - - - - - - kW - - - - - -

Gas consumption Gas consumption

natural gas H (10,9 kWh/m3) m³/h 6.0 7.9 9.9 12.2 14.7 17.2 20.2 23.5 27.5 32.3 37.4 43.6 m³/h 49.3 57.9 67.4 78.4 90.8 104.0

Propane m³/h 2.3 2.9 3.8 4.7 5.6 6.6 7.7 8.9 10.5 12.3 14.3 16.6 m³/h 19.0 22.1 25.7 29.9 34.7 39.7

Water volume ltr 5.6 5.9 6.2 6.5 6.9 7.3 7.7 8.3 8.9 9.6 10.5 11.4 ltr 22.0 23.2 24.6 26.3 28.1 30.1

Max. working pressure bar 11 11 11 11 11 11 11 11 11 11 11 11 bar 11 11 11 11 11 11

Gas connection ¾" ¾" 1" 1" 1" 1" 1½" 1½" 1½" 1½" 1½" 1½" 2" 2" 2" 2"DN65PN16

DN65PN16

Water connections 2" 2" 2" 2" 2" 2"DN65PN16

DN65PN16

DN65PN16

DN65PN16

DN65PN16

DN65PN16

DN80PN16

DN80PN16

DN80PN16

DN80PN16

DN80PN16

DN80PN16

Flue connection mm 200 225 250 250 300 300 350 350 400 400 450 450 mm 450 500 550 600 650 700

Electrical supply Phase 1 1 1 1 1 1 1 1 1 1 1 1 Phase 1 1 1 1 1 1

Frequency Hz 50 50 50 50 50 50 50 50 50 50 50 50 Hz 50 50 50 50 50 50

Fuse A 6 6 6 6 6 6 6 6 6 6 6 6 A 6 6 6 6 6 6

Dimensions depth mm 1017 1017 1017 1017 1017 1017 1017 1017 1017 1017 1017 1017 mm 1633 1633 1633 1633 1618 1618

height mm 1612 1612 1612 1612 1612 1612 1612 1612 1632 1632 1652 1652 mm 1795 1795 1795 1795 1895 1895

length mm 820 898 994 1090 1200 1312 1438 1598 1772 1978 2216 2486 mm 1461 1636 1842 2080 2350 2636

Weight, empty, ± 5 % kg 195 210 225 240 260 280 305 330 365 400 440 490 kg 620 660 705 760 820 885

Table Technical Data

- Heat output measured with : 60 - 80 °C 60 - 80 °C

- Gas consumption at 1013 mbar. 15 °C, dry 1013 mbar. 15 °C, dry

- Gas specifi cation II 2H3P II 2H3P

- Appliance category B11 B11

- Protection degree IP30 IP30

ECONOFLAME BOILERS

R2000 R18 R2200 R300

R2200 R300

Type 2207 2210 2213 2216 2220 2224 2228 R301 R302 R303 R304 R305 R306 R307

Nominal heat output kW 81.3 116.4 151.5 186.7 233.9 280.9 328.5 kW 70 86 114 139 185 230 274

Nominal heat input (nett. CV) kW 88.2 126.0 163.8 201.6 252.0 302.4 352.8 kW 74 91 121 147 194 243 289

Minimum heat output kW - - - - - - - kW 16 20 27 33 44 55 65

Gas consumption Gas consumption Gas consumption

natural gas H (10,9 kWh/m3) m³/h 9.3 13.3 17.3 21.3 26.7 32.0 37.3 m³/h 6.79 8.35 11.10 13.49 17.80 22.29 26.51

Propane N/A N/A N/A N/A N/A N/A N/A N/A m³/h 2.6 3.2 4.2 5.15 6.8 8.5 10.1

Water volume ltr 6.2 6.9 7.7 8.5 9.6 10.5 11.4 ltr 13 15 17 19 36 39 42

Max. working pressure bar 6 6 6 6 6 6 6 bar 6 6 6 6 6 6 6

Gas connection 1" 1¼" 1¼" 1¼" 1¼" 1½" 1½" Rp¾" Rp¾" Rp¾" Rp¾" R1" R1½" R1½"

Water connectionsDN50PN6

DN50PN6

DN50PN6

DN50PN6

DN50PN6

DN50PN6

DN50PN6 R1½" R1½" R1½" R1½" R2" R2" R2"

Flue connection mm 150 180 200 200 250 250 300 mm 100 100 100 150 180 200 200

Electrical supply Phase 1 1 1 1 1 1 1 Phase 1 1 1 1 1 1 1

Frequency Hz 50 50 50 50 50 50 50 Hz 50 50 50 50 50 50 50

Fuse A 6 6 6 6 6 6 6 A 10 10 10 10 10 10 10

Dimensions width mm 786 786 786 786 786 786 786 mm 500 600 700 800 600 700 800

height mm 1440 1440 1440 1440 1440 1440 1440 mm 1205 1240 1240 1240 1240 1240 1240

length mm 1016 1226 1436 1646 1926 2206 2486 mm 635 635 635 635 890 890 890

Weight, empty, ± 5 % kg 165 200 245 285 340 375 440 kg 120 140 160 180 250 270 290

Table Technical Data

- Heat output measured with : 60 - 80 °C 60 - 80 °C

- Gas consumption at 1013 mbar. 15 °C, dry 1013 mbar. 15 °C, dry

- Gas specifi cation I 2H II 2H3P

- Appliance category B14 B23 C53 C33 C63

- Protection degree IP20 IP20

ECONOFLAME BOILERS

ECONOFLAME BOILER RANGE TECHNICAL DATA

EconoFlame A3 03.indd 2 09/12/2002, 16:06:54

ECONOFLAME BOILER RANGE TECHNICAL DATA

R2000 R18

Type R2017 R2022 R2028 R2034 R2041 R2048 R2056 R2066 R2077 R2090 R2105 R2122 132 154 180 210 244 280

Nominal heat output kW 57.7 74.6 95.8 116.7 139.1 162.7 190.7 222.1 261.1 309.0 361.0 425.0 kW 481 558 649 756 875 1002

Nominal heat input (nett. CV) kW 65.5 84.8 107.7 131.6 158.6 185.5 217.4 253.3 296.2 348.0 403.9 470.7 kW 538 625 727 846 980 1122

Minimum heat output kW - - - - - - - - - - - - kW - - - - - -

Gas consumption Gas consumption

natural gas H (10,9 kWh/m3) m³/h 6.0 7.9 9.9 12.2 14.7 17.2 20.2 23.5 27.5 32.3 37.4 43.6 m³/h 49.3 57.9 67.4 78.4 90.8 104.0

Propane m³/h 2.3 2.9 3.8 4.7 5.6 6.6 7.7 8.9 10.5 12.3 14.3 16.6 m³/h 19.0 22.1 25.7 29.9 34.7 39.7

Water volume ltr 5.6 5.9 6.2 6.5 6.9 7.3 7.7 8.3 8.9 9.6 10.5 11.4 ltr 22.0 23.2 24.6 26.3 28.1 30.1

Max. working pressure bar 11 11 11 11 11 11 11 11 11 11 11 11 bar 11 11 11 11 11 11

Gas connection ¾" ¾" 1" 1" 1" 1" 1½" 1½" 1½" 1½" 1½" 1½" 2" 2" 2" 2"DN65PN16

DN65PN16

Water connections 2" 2" 2" 2" 2" 2"DN65PN16

DN65PN16

DN65PN16

DN65PN16

DN65PN16

DN65PN16

DN80PN16

DN80PN16

DN80PN16

DN80PN16

DN80PN16

DN80PN16

Flue connection mm 200 225 250 250 300 300 350 350 400 400 450 450 mm 450 500 550 600 650 700

Electrical supply Phase 1 1 1 1 1 1 1 1 1 1 1 1 Phase 1 1 1 1 1 1

Frequency Hz 50 50 50 50 50 50 50 50 50 50 50 50 Hz 50 50 50 50 50 50

Fuse A 6 6 6 6 6 6 6 6 6 6 6 6 A 6 6 6 6 6 6

Dimensions depth mm 1017 1017 1017 1017 1017 1017 1017 1017 1017 1017 1017 1017 mm 1633 1633 1633 1633 1618 1618

height mm 1612 1612 1612 1612 1612 1612 1612 1612 1632 1632 1652 1652 mm 1795 1795 1795 1795 1895 1895

length mm 820 898 994 1090 1200 1312 1438 1598 1772 1978 2216 2486 mm 1461 1636 1842 2080 2350 2636

Weight, empty, ± 5 % kg 195 210 225 240 260 280 305 330 365 400 440 490 kg 620 660 705 760 820 885

Table Technical Data

- Heat output measured with : 60 - 80 °C 60 - 80 °C

- Gas consumption at 1013 mbar. 15 °C, dry 1013 mbar. 15 °C, dry

- Gas specifi cation II 2H3P II 2H3P

- Appliance category B11 B11

- Protection degree IP30 IP30

ECONOFLAME BOILERS

R2000 R18 R2200 R300

R2200 R300

Type 2207 2210 2213 2216 2220 2224 2228 R301 R302 R303 R304 R305 R306 R307

Nominal heat output kW 81.3 116.4 151.5 186.7 233.9 280.9 328.5 kW 70 86 114 139 185 230 274

Nominal heat input (nett. CV) kW 88.2 126.0 163.8 201.6 252.0 302.4 352.8 kW 74 91 121 147 194 243 289

Minimum heat output kW - - - - - - - kW 16 20 27 33 44 55 65

Gas consumption Gas consumption Gas consumption

natural gas H (10,9 kWh/m3) m³/h 9.3 13.3 17.3 21.3 26.7 32.0 37.3 m³/h 6.79 8.35 11.10 13.49 17.80 22.29 26.51

Propane N/A N/A N/A N/A N/A N/A N/A N/A m³/h 2.6 3.2 4.2 5.15 6.8 8.5 10.1

Water volume ltr 6.2 6.9 7.7 8.5 9.6 10.5 11.4 ltr 13 15 17 19 36 39 42

Max. working pressure bar 6 6 6 6 6 6 6 bar 6 6 6 6 6 6 6

Gas connection 1" 1¼" 1¼" 1¼" 1¼" 1½" 1½" Rp¾" Rp¾" Rp¾" Rp¾" R1" R1½" R1½"

Water connectionsDN50PN6

DN50PN6

DN50PN6

DN50PN6

DN50PN6

DN50PN6

DN50PN6 R1½" R1½" R1½" R1½" R2" R2" R2"

Flue connection mm 150 180 200 200 250 250 300 mm 100 100 100 150 180 200 200

Electrical supply Phase 1 1 1 1 1 1 1 Phase 1 1 1 1 1 1 1

Frequency Hz 50 50 50 50 50 50 50 Hz 50 50 50 50 50 50 50

Fuse A 6 6 6 6 6 6 6 A 10 10 10 10 10 10 10

Dimensions width mm 786 786 786 786 786 786 786 mm 500 600 700 800 600 700 800

height mm 1440 1440 1440 1440 1440 1440 1440 mm 1205 1240 1240 1240 1240 1240 1240

length mm 1016 1226 1436 1646 1926 2206 2486 mm 635 635 635 635 890 890 890

Weight, empty, ± 5 % kg 165 200 245 285 340 375 440 kg 120 140 160 180 250 270 290

Table Technical Data

- Heat output measured with : 60 - 80 °C 60 - 80 °C

- Gas consumption at 1013 mbar. 15 °C, dry 1013 mbar. 15 °C, dry

- Gas specifi cation I 2H II 2H3P

- Appliance category B14 B23 C53 C33 C63

- Protection degree IP20 IP20

ECONOFLAME BOILERS

ECONOFLAME BOILER RANGE TECHNICAL DATA

EconoFlame A3 03.indd 2 09/12/2002, 16:06:54

R2700 R2900

R2700 R2900

Type R2700 R2701 R2702 R2703 R2704 R2705 R2706 R2707 R2708 R2709 R2900 R2901 R2902 R2903 R2904 R2905 R2906 R2907 R2908 R2909

Nominal heat output kW 95 119 141 178 218 299 374 445 521 597 kW 96 122 153 188 257 322 383 449 514 566

Nominal heat input (nett. CV) kW 101 126 151 190 233 319 400 475 557 638 kW 99 126 158 194 266 333 396 464 532 585

Minimum heat output kW 25 33 38 48 58 80 100 119 139 160 kW 25 33 40 48.5 66 83 100 112 133 146

Gas consumption Gas consumption Gas consumption

natural gas H (10,9 kWh/m3) m³/h 9.3 11.6 13.9 17.4 21.4 29.3 36.7 43.6 51.1 58.5 m³/h 9.1 11.6 14.5 17.8 24.4 30.5 36.3 42.6 48.8 53.7

Propane m³/h 3.5 4.4 5.3 6.6 8.2 11.2 14.0 16.6 19.5 22.3 m³/h 3.5 4.4 5.5 6.8 9.3 11.6 13.8 16.2 18.6 20.5

Water volume ltr 18 18 18 19 20 35 38 41 44 47 ltr 20 20 21 22 39 42 45 48 55 58

Max. working pressure bar 6 6 6 6 6 6 6 6 6 6 bar 6 6 6 6 6 6 6 6 6 6

Gas connection Rp1½" Rp1½" Rp1½" Rp1½" Rp1½" Rp1½" Rp2" Rp2" Rp2" Rp2" Rp1½" Rp1½" Rp1½" Rp1½" Rp1½" Rp1½" Rp1½" Rp2" Rp2" Rp2"

Water connections R2" R2" R2" R2" R2"DN65PN6

DN65PN6

DN65PN6

DN65PN6

DN65PN6 R2" R2" R2" R2"

DN65PN6

DN65PN6

DN65PN6

DN65PN6

DN65PN6

DN65PN6

Flue connection mm 150 150 150 180 200 200 250 250 300 300 mm 150 150 180 200 200 250 250 250 300 300

Electrical supply Phase 3 3 3 3 3 3 3 3 3 3 Phase 3 3 3 3 3 3 3 3 3 3

Frequency Hz 50 50 50 50 50 50 50 50 50 50 Hz 50 50 50 50 50 50 50 50 50 50

Fuse A 10 10 10 10 10 10 10 10 10 16 A 10 10 10 10 10 10 10 10 10 10

Dimensions width mm 830 830 830 830 930 830 830 930 1130 1130 mm 830 830 830 930 830 830 930 1130 1130 1230

height mm 1355 1355 1355 1355 1355 1355 1355 1355 1355 1355 mm 1355 1355 1355 1355 1355 1355 1355 1355 1355 1355

length mm 1535 1535 1535 1535 1535 1918 1918 1908 1908 1908 mm 1535 1535 1535 1535 1918 1918 1908 1908 1908 1958

Weight, empty, ± 5 % kg 325 325 325 340 360 500 525 560 615 645 kg 340 340 355 375 530 555 590 645 705 735

Table Technical Data

- Heat output measured with : 60 - 80 °C 60 - 80 °C

- Gas consumption at 1013 mbar. 15 °C, dry 1013 mbar. 15 °C, dry

- Gas specifi cation II 2H3P II 2H3P

- Appliance category B23 C53 C33 C63 B23 C53 C33 C63

- Protection degree IP20 IP20

ECONOFLAME BOILER RANGE TECHNICAL DATA

ECONOFLAME BOILERS The R2700, R3400 Models

• Premix Fully Modulating boiler• Ultra low NOx• Higher effi ciency than atmospheric models• Smaller footprint than atmospheric models• Smaller fl ue diameter than atmospheric models• Stainless steel construction, high build quality• Integral primary boiler pump• BMS compatible• Semi condensing capability NO MINIMUM return temperature requirements

R300,R2900 & R3600 MODELS• All the features listed above PLUS FULLY CONDENSING EFFICIENCY

ALL EXCEED PART ‘L’ BUILDING REGULATION REQUIREMENTS

ALL INCLUDED ON THE ENHANCED CAPITAL ALLOWANCE (ECA) SCHEMEENERGY TECHNOLOGY PRODUCT LIST.

107106105104103102101100

99989796959493

Effic

ienc

y (n

ett c

v) %

Capacity %25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Effi ciency Figures @ 60° C Flow, 40° C Return.

10710610510410310210110099989796959493

Effic

ienc

y (n

ett c

v) %

Capacity %25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Effi ciency Figures @ 80° C Flow, 60° C Return.

ECONOFLAME R2700 / R2900

Additional CondensingHeat Exchanger(R2900)

Effi ciency Figures

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R3400 R3600

Type R3401 R3402 R3403 R3404 R3405 R3406 R3601 R3602 R3603 R3604 R3605

Nominal heat output kW 657 729 853 965 1078 1189 kW 631 739 836 934 1031

Nominal heat input (nett. CV) kW 702 784 917 1038 1159 1279 kW 653 764 865 966 1066

Minimum heat output kW 176 196 229 260 290 320 kW 187 218 247 276 305

Gas consumption Gas consumption Gas consumption

natural gas H (10,9 kWh/m3) m³/h 64.5 71.9 84.1 95.2 106.3 117.3 m³/h 59.9 70.1 79.4 88.6 97.8

Propane m³/h 24.6 27.4 32.1 36.3 40.6 44.8 m³/h 22.8 26.7 30.3 33.8 37.3

Water volume ltr 50 53 70 75 80 85 ltr 61 78 83 92 97

Max. working pressure bar 6 6 6 6 6 6 bar 6 6 6 6 6

Gas connection Rp2" Rp2" Rp2" Rp2"DN65PN6

DN65PN6 Rp2" Rp2" Rp2"

DN65PN6

DN65PN6

Water connectionsDN65PN6

DN65PN6

DN80PN6

DN80PN6

DN80PN6

DN80PN6

DN65PN6

DN80PN6

DN80PN6

DN80PN6

DN80PN6

Flue connection mm 300 350 350 400 400 400 mm 300 350 350 400 400

Electrical supply Phase 3 3 3 3 3 3 Phase 3 3 3 3 3

Frequency Hz 50 50 50 50 50 50 Hz 50 50 50 50 50

Fuse A 16 16 20 20 20 20 A 16 16 20 20 20

Dimensions width mm 1330 1330 1130 1130 1330 1330 mm 1330 1130 1130 1330 1330

height mm 1355 1355 1355 1355 1355 1355 mm 1355 1355 1355 1355 1355

length mm 2265 2265 2653 2653 2658 2658 mm 2265 2653 2653 2658 2658

Weight, empty, ± 5 % kg 675 740 840 950 1070 1200 kg 800 900 1010 1160 1290

Table Technical Data

- Heat output measured with : 60 - 80 °C 60 - 80 °C

- Gas consumption at 1013 mbar. 15 °C, dry 1013 mbar. 15 °C, dry

- Gas specifi cation II 2H3P II 2H3P

- Appliance category B23 C53 C33 C63 B23 C53 C33 C63

- Protection degree IP20 IP20

R3400 R3600

ECONOFLAME BOILER RANGE TECHNICAL DATA

1

2

3

4

5

1 Econofl ame boiler2 Power boiler 2-stage fi ring3 Power boiler on-off4 Atmospheric boiler 2-stage5 Atmospheric boiler on-off

Boiler output in %

Effi ciency curves for different types of boilers

Gro

ss t

her

mal

effi

cie

ncy

in %

ECONOFLAME FEATURESA — Integral Draught DiverterB — ServomotorC — Modulated Gas valveD — Gas supplyE — Primary airF — Operating mechanismG — Secondary airH — Flue defl ectorI — CasingJ — Heat exchangerK — InsulationL — Burner barsM — Air diffuserN — Secondary air damper

A

B

C

D

E

FG

H

I

J

K

L

M

N

ECONOFLAME SERIESSince 1985 Stokvis have been offering a range of fully modulating, high effi ciency gas fi red boilers. Researched and developed over the years, evolving through and culminating in the most comprehensive ‘state of the art’ premix, ultra low NOx and condensing range of products :- all exceeding part L Building Regulations; the full range of premix models are ECA listed, as is the R18 atmospheric range.

R2000 & R18 Series Features And Benefi ts•Modulated gas valve and secondary air damper operated by servomotor. • Matching of part load conditions from 100%down to 20%. More effi cient at part loads than conventional boilers, obviating need for many modules. • Gas and secondary air ratios controlled from one source. No possibility of error in control. • Servomotor signals indicate load conditions. Allows boilers to be sequenced for optimum effi ciency. • Damper insulated, preventing downward heat radiation. Obviating requirement for heat absorbent base and helps maintain high effi ciency.

•Atmospheric stainless steel, gas burner. • Quiet in operation. Can be installed in areas where noise restrictions are paramount. • Complete burner including all gas and air controls can be removed on wheels. Easy to maintain, labour costs kept to a minimum. • Primary air controlled by inducement from modulated gas. No need for sophisticated controls and complicated maintenance. • Even secondary air distribution across burner. Ensuring even fl ame and high effi ciency.

•Nine/eighteen tube extruded fi n, copper heat exchanger with stainless steel baffl es. • High conductivity of copper. Meaning minimum size of heat exchanger, maximum output. • Copper resistant to thermal shock. Giving longer lifetime expectancy of heat exchanger (5 year guarantee) • Baffl es give maximum turbulence of fl ue gases. Maximum heat extraction from fl ue gases giving high effi ciency. • Substantially lighter than Cast Iron / Welded Steel boilers. Structural limitations are overcome when boilers are located in roof top plantrooms.

ECONOFLAME BOILERS

The R2200 is a fan assisted model with a two stage burner and is similar in design to the R2000 series.

• Smaller fl ue diameter than the atmospheric boilers. Ideally suited for replacement of cast iron/steel shell pressure jet boilers.

R2200 Effi ciency Figures (weather compensated)

100

99

98

97

96

95

94

93

92

91

90

Effic

ienc

y (n

ett c

v) %

Capacity %50 55 60 65 70 75 80 85 90 95 100

• Effi ciency Curves

EconoFlame A3 03.indd 4 09/12/2002, 16:07:27

The company

STOKVIS Energy Systems maintenance and after sales service

ENERGY PRODUCTS

High Effi ciency

and Condensing

Gas Fired Boilers

•

Hot Water Plate Heat

Exchanger Packages

•

High Effi ciency Sanitary

Hot Water Packages

•

Dual Fuel Boilers

•

Pressurisation and Booster Sets

•

Direct Gas Fired

Air Heating and

Ventilating Systems

•

Steel Panel and Low

Temperature Radiators

•

Packaged Plant Rooms

•

Since the early 1980’s , STOKVIS Energy

Systems has been acknowledged as the

vanguard in it’s fi eld for both quality of

products and customer service.

It is our dedicated objective to continue

to excel at providing you our customers

and partners with both the products

and services you need in these most

demanding and dynamic times both now

and into the future.

Ivan Thompson

Managing Director

You can be sure that your new Stokvis product is the very best of its type

in design, materials and construction. However to obtain the maximum

benefi ts from your quality product, it is essential that it is maintained at

maximum effi ciency throughout its long working life.

For this reason, STOKVIS Energy Systems provides full UK cover

with factory trained engineers to offer you a total service opportunity

throughout the year.

This ensures that your equipment can be checked, serviced and, if

necessary, adjusted to ensure maximum energy saving performance.

Also, in the unlikely event of a breakdown, repairs can be tackled

speedily and cost effectively – wherever you are in the UK. Just phone,

fax or e-mail STOKVIS Energy Systems for prompt professional attention

to your needs.

STOKVIS INDUSTRIAL BOILERS(INTERNATIONAL) LIMITED96R Walton Road East Molesey Surrey KT8 0DLTELEPHONE 08707 707747 • FACSIMILE 08707 707767Email: info@stokvisboilers.com • Website: http://www.stokvisboilers.com

EFLAME 1202

ECONOFLAMECOMMERCIAL &

INDUSTRIAL BOILERS

EconoFlame A3 03.indd 1 09/12/2002, 16:03:08