background image

 

 

2.2  REX/REX K/REX F/REX K F 140-500 BOILER 

 

Efficiency 100%

(N.C.V.)

NG max flow

rate G20

NG max flow

rate G30

NG max flow

rate G31

Max flow rate

of flues

Efficiency at 30%

(N.C.V.)

kW

kcal/h

kW

kcal/h

%

m³/h

kg/h

kg/h

kg/h

%

Medium Temp.

70°C

Medium Temp.

70°C

REX 140 REX K 140

1400

1.204.000 1517 1.304.620

92,29

160,53

119,14

117,85

2391,90

91,70

REX 160 REX K 160

1600

1.376.000 1733 1.490.380

92,33

183,39

136,11

134,63

2732,51

91,80

REX 180 REX K 180

1800

1.548.000 1950 1.677.000

92,31

206,35

153,15

151,49

3074,62

91,80

REX 200 REX K 200

2000

1.720.000 2167 1.863.620

92,29

229,31

170,19

168,35

3416,72

91,70

REX 240 REX K 240

2400

2.064.000 2600 2.236.000

92,31

275,13

204,20

201,99

4099,44

91,80

REX 300 REX K 300

3000

2.580.000 3250 2.795.000

92,31

343,92

255,25

252,48

5124,41

91,80

REX 350 REX K 350

3500

3.010.000 3792 3.261.120

92,3

401,27

297,82

294,59

5978,92

91,70

Medium Temp.

 70°C

Characteristics

Heat output

Heat input

 

Pressure losses

flue gas side

Heat losses through

 the chimney

Heat losses through

the casing

Heat losses with

burner off

Press. losses

water side

Design

Pressure

Total

capacity

Total

weight 

Electric

supply

Frequency

Insulation

class

Electric

power

mbar

%

%

%

°C

°C

°C

%

%

%

mbar

bar

l

kg

Volt ~

Hz

IP

W

GAS GASOIL HEAVY OIL GAS GASOIL HEAVY OIL

 (

Δ

T=12K)

With electr.

contr. (excluded

pump and burner)

N

at. g

as

Lp

g

Ga

so

il

Heav

y oi

l

REX 140 REX K 140

6,0

6,91

0,80

0,10

184 187

187

10,5 13,5

14,0

38

5

1500 2600

230

50

IP40

20

X X X X

REX 160 REX K 160

6,5

6,87

0,80

0,10

183 186

186

10,5 13,5

14,0

50

5

1500 2600

230

50

IP40

20

X X X X

REX 180 REX K 180

7,0

6,89

0,80

0,10

184 186

186

10,5 13,5

14,0

63

5

1650 2750

230

50

IP40

20

X X X X

REX 200 REX K 200

6,0

6,91

0,80

0,10

184 187

187

10,5 13,5

14,0

25

5

2000 3650

230

50

IP40

20

X X X X

REX 240 REX K 240

7,5

6,89

0,80

0,10

184 186

186

10,5 13,5

14,0

35

5

2300 3900

230

50

IP40

20

X X X X

REX 300 REX K 300

8,0

6,89

0,80

0,10

184 186

186

10,5 13,5

14,0

55

5

3150 5200

230

50

IP40

20

X X X X

REX 350 REX K 350

9,0

6,90

0,80

0,10

184 187

186

10,5 13,5

14,0

75

5

3650 5700

230

50

IP40

20

X X X X

Flue gas temp. at boiler

output and air at 20 deg. C

CO2

Fuel

Characteristics

 

Efficiency 100%

(N.C.V.)

NG max flow

rate G20

NG max flow

rate G30

NG max flow

rate G31

Max flow rate

of flues

Efficiency at 30%

(N.C.V.)

kW

kcal/h

kW

kcal/h

%

m³/h

kg/h

kg/h

kg/h

%

Medium Temp.

70°C

Medium Temp.

70°C

REX 140 F REX K 140 F

1400

1.204.000 1468 1.262.480

95,37

155,34

115,29

114,05

2314,57

95,87

REX 160 F REX K 160 F

1600

1.376.000 1675 1.440.500

95,52

177,25

131,55

130,13

2641,03

95,80

REX 180 F REX K 180 F

1800

1.548.000 1885 1.621.100

95,49

199,47

148,05

146,44

2972,10

95,70

REX 200 F REX K 200 F

2000

1.720.000 2094 1.800.840

95,51

221,59

164,46

162,68

3301,69

95,80

REX 240 F REX K 240 F

2400

2.064.000 2518 2.165.480

95,31

266,46

197,76

195,62

3970,25

95,40

REX 300 F REX K 300 F

3000

2.580.000 3142 2.702.120

95,48

332,49

246,77

244,09

4954,10

95,60

REX 350 F REX K 350 F

3500

3.010.000 3670 3.156.200

95,37

388,36

288,24

285,11

5786,56

95,87

Characteristics

Heat output

Heat input

Medium Temp.

 70°C

 

Pressure losses

flue gas side

Heat losses through

 the chimney

Heat losses through

the casing

Heat losses with

burner off

Flue gas temp. at boiler

output and air at 20 deg. C

CO2

Press. losses

water side

Design

Pressure

Total

capacity

Total

weight 

Electric

supply

Frequency

Insulation

class

Electric

power

mbar

%

%

%

°C

%

mbar

bar

l

kg

Volt ~

Hz

IP

W

GAS

GAS

 (

Δ

T=12K)

With electr.

contr. (excluded

pump and burner)

Nat.

 gas

Lp

g

Gas

oil

Hea

vy oil

REX 140 F REX K 140 F

6,6

4,13

0,50

0,10

124

11,0

38

5

1500

2665

230

50

IP40

20

X X -

-

REX 160 F REX K 160 F

7,1

3,98

0,50

0,10

120

11,0

50

5

1500

2665

230

50

IP40

20

X X -

-

REX 180 F REX K 180 F

7,6

4,01

0,50

0,10

121

11,0

63

5

1650

2815

230

50

IP40

20

X X -

-

REX 200 F REX K 200 F

6,6

3,99

0,50

0,10

120

11,0

25

5

2000

3730

230

50

IP40

20

X X -

-

REX 240 F REX K 240 F

8,1

4,19

0,50

0,10

125

11,0

35

5

2300

3980

230

50

IP40

20

X X -

-

REX 300 F REX K 300 F

8,6

4,02

0,50

0,10

121

11,0

55

5

3150

5300

230

50

IP40

20

X X -

-

REX 350 F REX K 350 F

9,6

4,13

0,50

0,10

124

11,0

75

5

3650

5800

230

50

IP40

20

X X -

-

Fuel

Characteristics

 

H

H1

H2

H6 H10

L

L2

P

P2

P3

P4

P5

P6

Øb Øc

N1

N2 N1/N2 N3

N4

N5

N6

N7

N8

mm

mm

mm

mm mm

mm

mm

mm

mm mm mm mm

mm

mm mm DN/in DN/in PN DN/in DN/in DN/in DN/in DN/in DN/in

REX 140 REX K 140 REX 140 F REX K 140 F

1746

1630 880 880 150

1470

1270

2886

2300 831 1300 755 350-400 320 400 150 150 16

1" 1"1/4 1"1/2 1/2" 1/2" 1/2"

REX 160 REX K 160 REX 160 F REX K 160 F

1746

1630 880 880 150

1470

1270

2886

2300 831 1300 755 350-400 320 400 150 150 16

1" 1"1/4 1"1/2 1/2" 1/2" 1/2"

REX 180 REX K 180 REX 180 F REX K 180 F

1746

1630 880 880 150

1470

1270

3096

2510 771 1850 475 450-500 320 400 150 150 16

1" 1"1/4 1"1/2 1/2" 1/2" 1/2"

REX 200 REX K 200 REX 200 F REX K 200 F

1876

1760 945 945 150

1600

1400

3220

2510 903 1550 767 450-500 360 500 200 200 16

1" 1"1/4 2" 1/2" 1/2" 1/2"

REX 240 REX K 240 REX 240 F REX K 240 F

1876

1760 945 945 150

1600

1400

3480

2770 903 1950 627 450-500 360 500 200 200 16

1" 1"1/4 2" 1/2" 1/2" 1/2"

REX 300 REX K 300 REX 300 F REX K 300 F

2146

2030 1080 1080 150

1870

1670

3480

2770 903 2050 527 450-500 400 550 200 200 16

1" 1"1/4 2" 1/2" 1/2" 1/2"

REX 350 REX K 350 REX 350 F REX K 350 F

2146

2030 1080 1080 150

1870

1670

3935

3225 903 2050 982 450-500 400 550 200 200 16

1" 1"1/4 2" 1/2" 1/2" 1/2"

Dimensions

 

 

 

 

N1 - Flow 

N2 - Return 

N3 - Fitting for instruments 

N4 - System filling/drainage 

N5 - Fitting for safety valves 

N6 - Bulb wells 

N7 - Condensation drain 

N8 - Inspection well 

 

 

Summary of Contents for REX F

Page 1: ...TECHNICAL MANUAL REX REX F REX K REX K F REX DUAL REX DUAL F PRESSURISED STEEL BOILERS...

Page 2: ......

Page 3: ...side by side 80 260 POSITIONING INSTRUMENTS 15 3 3 ELECTRICAL CONNECTION 16 3 4 REX REX F REX K REX K F OPTIONAL CONTROL PANEL FIG 3 16 3 5 INSTALLATION OF REX 140 350 BOILER CONTROL PANEL FIG 4 AND P...

Page 4: ...cturer cannot be held responsible At the first start up all regulation and control devices positioned on the control panel should be checked for efficiency The guarantee shall be valid only upon compl...

Page 5: ...X REX 25 REX K 25 2 0 6 95 0 80 0 10 185 188 187 10 5 13 5 14 0 98 5 220 431 230 50 IP40 20 X X X X REX 30 REX K 30 2 0 6 89 0 80 0 10 184 186 186 10 5 13 5 14 0 50 5 300 475 230 50 IP40 20 X X X X RE...

Page 6: ...0 50 50 6 1 1 1 2 1 2 1 2 REX 9 REX K 9 REX 9 F REX K 9 F 1030 855 415 912 415 54 5 756 700 1119 755 513 265 341 200 250 130 200 50 50 6 1 1 1 2 1 2 1 2 REX 10 REX K 10 REX 10 F REX K 10 F 1030 855 41...

Page 7: ...F REX K 200 F 2000 1 720 000 2094 1 800 840 95 51 221 59 164 46 162 68 3301 69 95 80 REX 240 F REX K 240 F 2400 2 064 000 2518 2 165 480 95 31 266 46 197 76 195 62 3970 25 95 40 REX 300 F REX K 300 F...

Page 8: ...5 443 92 329 47 325 90 6614 41 95 45 REX 450 F 4500 3 870 000 4720 4 059 200 95 34 499 47 370 70 366 68 7442 10 95 50 REX 500 F 5000 4 300 000 5245 4 510 700 95 33 555 03 411 94 407 47 8269 95 95 46 R...

Page 9: ...230 50 IP40 20 X X X X REX DUAL 150 5 2 6 95 0 80 0 10 185 188 187 10 5 13 5 14 0 44 5 1710 2621 230 50 IP40 20 X X X X REX DUAL 170 7 2 6 91 0 80 0 10 184 187 187 10 5 13 5 14 0 56 5 1710 2621 230 5...

Page 10: ...10 440 1320 830 54 5 1034 5 989 806 750 590 2048 1250 1650 398 200 250 160 250 6 80 80 1 1 1 1 2 1 2 1 2 REX DUAL 60 REX DUAL 60 F 1993 490 1470 1910 490 1470 930 54 5 1034 5 1089 906 850 690 2049 125...

Page 11: ...0 0 10 185 188 188 10 5 13 5 14 0 35 5 2400 3686 230 50 IP40 20 X X X X REX DUAL 260 6 5 6 94 0 80 0 10 185 188 187 10 5 13 5 14 0 42 5 2400 3686 230 50 IP40 20 X X X X Flue gas temp at boiler output...

Page 12: ...1 4 1 1 2 1 2 1 2 1 2 REX DUAL 170 REX DUAL 170 F 1990 1335 675 1417 675 60 2600 1240 1305 2247 1753 704 1100 443 270 320 280 350 150 150 6 1 1 1 4 1 1 2 1 2 1 2 1 2 REX DUAL 190 REX DUAL 190 F 1990 1...

Page 13: ...led because it uses a burner provided with fan which introduces into the combustion chamber the exact amount of air necessary in relation to the fuel and maintains an overpressure in the furnace equiv...

Page 14: ...u are advised to close t he supply cock and keep it closed so that any leaks from the system will be identified by a drop in hydraulic pressure indicated on the system pressure gauge The generator mus...

Page 15: ...ith control manometer flange 5 2 nd safety valve fitting or thermal drainage 1st safety 6 2 nd boiler circulator consent thermostat and safety thermostat bulb wells 7 Flanges to weld after the definit...

Page 16: ...l can be rotated to gain access to the terminal board and uncoil the ther mostat and thermometer capillaries A copy of the wiring diagram is contained inside the control panel cover The regulation the...

Page 17: ...s and thermometer through the window and screw them in the squa re pipe of the bracket and slide them in the protective tube through top openings until they reach the wells 6 Lock them using the speci...

Page 18: ...18 1 2 6 3 4 5 9...

Page 19: ...on and for increase o decrease wait 2 seconds and the parameter will be saved automatically OP2 From the main screen push and the parameter A2S P is the value of the second stage burner change it with...

Page 20: ...is contained inside the control panel The regulation bi thermostats TR1 and TR2 have an operating range from 42 to 87 and can be set by the user by means of the front k nob The temperature differenti...

Page 21: ...ssary for the boiler and that it is provided with all control and safety devices provided for by the regulations referred to above f Check that the boiler room vents are sized in or der to guarantee t...

Page 22: ...be inserted and welded on the rear plate tube 6 keeping the boiler in upright position or but welding will be more difficult horiz ontally the choice will depend on the size of premises and the equipm...

Page 23: ...alve and expansion vessel N6 Bulb wells Fig 7 Fig 8 DIMENSIONS AND WEIGHTS OF THE BULKIEST PARTS Tube nest Furnace Manhole MOD mm length mm weight kg width mm height mm weight kg 7 631 620 30 700 630...

Page 24: ...e boiler side frame d Fit the upper panel 2S on the boiler and fit on th is panel the control panel uncoil the thermometer and thermostat capillaries and insert the bulbs in the wells e Fit panel 1D a...

Page 25: ...ls e Fit the panels 1D 2D and 3D ensuring that the capillaries are inserted in the slot provided in the panel 3D securing the control panel to panel 3D Super isolation on request f Fit the panels 5S a...

Page 26: ...sing holes P1 or P2 insert bulbs in their wells see figure Fit the control panel c Fit panels P1 and P4 inserting the upper fold into the square tube and the lower fold to the boiler side frame d Fit...

Page 27: ...the best remedy at con struction level is to eliminate areas that overheat Scale creates an insulating layer which reduces the thermal transfer of the generator affecting system ef ficiency This means...

Page 28: ...ature CO Gas 10 190 C 0 20 ppm Gas oil 13 195 C 10 80 ppm Heavy oil 13 5 200 C 50 150 ppm A diagram is provided in which the system efficiency is obtained according to the flue gas temperature the amb...

Page 29: ...n switched off until the insulating parts are cooler 6 2 CLEANING AND SERVICING Close fuel supply and disconnect the electrical mains before starting any cleaning and servicing operations As economic...

Page 30: ......

Page 31: ...087833051 info stokvisboilers com www stokvisboilers com The illustration and details reported are indicative only and are not binding STOKVIS reserves the right to introduce alterations and or amendm...

Page 32: ...ASSEMBLY INSTRUCTIONS STAVES LINING...

Page 33: ......

Page 34: ...L 1 Wrap the fiberglass around the boiler body and use the supplied strap to secure it see fig DIAGRAM OF PLASTIC STRAP LOCKING TO SECURE THE FIBERGLASS TO THE BOILER SHELL 2 Prepare the staves by ins...

Page 35: ...e uprights and the beams to the plates by means of appropriate screws and nuts NOTE the beam shown in the figure if supplied in the package must be placed between the two tube panels in order to suppo...

Page 36: ...After all staves have been inserted install the closing frame using the self locking screws NOTE If the boiler has upper connections it is necessary to install the special central covers as shown in...

Page 37: ...e boiler front beam Pass the cables through the loopholes within the structure see the figure NOTE if the panel supporting stave is included in the kit containing the screw holes and the capillar eyel...

Page 38: ...087833051 info stokvisboilers com www stokvisboilers com The illustration and details reported are indicative only and are not binding STOKVIS reserves the right to introduce alterations and or amendm...

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