Viessmann VITOCROSSAL 300 Gebrauchsanweisung

L 3

Gas-fired condensing boiler

638 to 3361 MBH / 187 to 985 kW

Product may not be exactly as illustrated.

Vitocrossal 300 CT3 boiler with

Vitotronic NR2 control

Technical Data Manual

Model Nos. and pricing: see Price List

Vitocrossal 300

CT3 Series

High efficiency, gas-fired condensing oiler

for natural gas or liquid propane

with vertical Inox-Crossal heat exchanger surfaces

of corrosion-resistant stainless steel.

For operation without low limit on boiler return water

temperature.

For closed loop hot water heating systems with maximum

supply water temperatures of 210°F / 99°C for a

maximum operating pressure of 30 psig.

Heating input: 638 to 3361 MBH

187 to 985 kW

Product Information

2VITOCROSSAL 300, CT3

VITOCROSSAL 300

The enefits at a glance:

HVertical Inox-Crossal heating surfaces for

high operational reliability and long service

life.

– Easy dispersal of condensate through

vertical gas flues; therefore no

concentration of condensate.

– Increased self-cleaning effect through

smooth stainless steel surfaces.

HHighly efficient heat transfer and high

condensation rate through

– heat exchanger surfaces which intensely

turbulate the flue gas flow

– boiler water and hot gases flowing in

counterflow.

HEfficiency up to 98.3 % through intensive

condensation. The flue gas temperature is

only approx. 9 - 27°F / 5 - 15°C above

boiler return temperature.

HClean combustion – through perfect match

of burner and boiler low combustion

chamber loading and straight-through

combustion chamber.

HTwo return connections – providing

separate connection for heating circuits

with lower return temperature. This leads

to increased hot gas condensation.

HEasy handling in boiler rooms through

particularly low build height and weight;

also available in sections.

HEasy installation and elimination of wiring

mistakes with Viessmann prewired plug-in

system.

HHeating boiler heating system control

domestic hot water storage tank and all

other Viessmann system technology

components are co-ordinated to one

another. All components are

design-matched for quick installation.

HEconomical and safe heating system

operation through Vitotronic digital control

system with communication capability.

Tailored to every need covering all known

control strategies and applications.

Standard LON BUS for complete

integration into building management

systems.

Possible integration into the Vitocontrol

control panel.

Vitocrossal 300 boiler efficiency dependent on system

heating water return temperatures and load conditions

Product Information

Cut-Away Section

Product may not be exactly as illustrated

VITOCROSSAL 300, CT3 3

Two return Stainless steel Stainless steel Wide diameter Highly effective, 4”

connections arranged Inox-Crossal heat water-cooled water walls – proper wrap-around insulation

a ove each other exchanger surfaces com ustion cham er gravity circulation

4VITOCROSSAL 300, CT3

Technical data

Boiler model CT3- 17 22 28 37 46 57 72 89

Input MBH 638 846 1071 1389 1726 2160 2702 3361

kW 187 248 314 407 506 633 792 985

Output

MBH 626 827 1044 1350 1675 2094 2616 3252

kW 183 242 306 396 491 614 767 953

Com ustion efficiency

Thermal efficiency

98.3

98.1

97.8

97.7

97.4

97.2

97.1

96.9

96.8

96.7

Boiler output at

80/60° C - 176/140° F

70/50° C - 158/122° F

40/30° C - 104/86° F

MBH

554

162.3

576

168.7

607

177.8

734

215.3

763

223.7

805

235.8

930

272.6

966

283.2

1019

298.6

1206

353.3

1253

367.1

1321

387.1

1502

440.2

1561

457.4

1645

482.2

1879

550.7

1953

572.2

2059

603.2

2351

689.0

2443

716.0

2575

754.8

2924

857.0

3038

890.4

3203

938.7

Boiler stand y loss

at maximum input

80/60° C - 176/140° F

70/50° C - 158/122° F

40/30° C - 104/86° F

Btu/h

2566

752

0.40

2139

627

0.34

856

251

0.13

2818

826

0.33

2347

688

0.28

938

275

0.11

3064

898

0.29

2552

748

0.24

1020

299

0.10

3583

1050

0.26

3047

893

0.22

1143

335

0.08

4299

1260

0.25

3583

1050

0.21

1433

420

0.08

5240

1536

0.24

4367

1280

0.20

1747

512

0.08

5753

1686

0.21

4794

1405

0.18

1918

562

0.07

6633

1944

0.20

5753

1686

0.17

2211

648

0.07

Dimensions - oiler as shipped

(p)Length (door removed)

(q)Width 1 (max. shell width)

(r)Height

(max.)

Overall dimensions

(s)Overall length

(t)Overall width (incl. insulation

and control)

(u)Overall height (to top of

installed

header)

(v)Width (upper with jacketing)

(w)Width (lower with jacketing)

Boiler support frame

(x)Length

(y)Width

(z)Height

inches

59¾

1516

684

1773

64¼

1636

1016

2027

34½

874

31½

798

35¼

895

27¼

690

2¾

62¾

1594

684

71d

1808

67½

1714

1016

81d

2062

34½

874

31½

798

38e

975

27¼

690

2¾

1675

684

71¼

1811

70½

1795

1016

81¼

2065

34½

874

31½

798

41½

1055

27¼

690

2¾

1751

31½

800

79f

2023

73½

1871

44½

1132

2370

990

914

47¼

1200

32½

800

2¾

72¼

1829

31½

800

79f

2023

76¾

1949

44½

1132

2370

990

914

1270

32½

800

2¾

78¼

1985

31¼

800

79f

2023

2105

44½

1132

2370

990

914

56¼

1430

32½

800

2¾

82½

2095

37½

951

2235

85½

2172

1249

101¾

2585

45d

1147

990

56¼

1430

35½

900

2¾

2289

37½

951

2235

93¼

2366

1249

101¾

2585

45d

1147

990

64d

1630

35½

900

2¾

Weight

boiler shell

front cone (includes combustion

chamber door)

Overall weight

complete with insulation and

control (less burner)

lbs

1012

459

413

187

1228

557

1114

505

413

187

1352

613

1202

545

413

187

1455

660

1671

758

490

222

1962

890

1759

798

490

222

2064

936

1995

905

490

222

2322

1053

2706

1230

600

273

3014

1370

3014

1370

600

273

3344

1520

Output ratings are based on the IBR BTS-2 “method to determine efficiency of commercial space heating boilers”.

Boilers CT3-17, 22, 28 are shipped with header attached (u) - see overall height dimensions and add 4” (1 mm) for the wood blocks

as per transportation height.

Technical Data

VITOCROSSAL 300, CT3 5

Technical data (continued)

Boiler model CT3- 17 22 28 37 46 57 72 89

Boiler water content USG 71.3 78.2 87.2 129.5 140.8 150.6 199.2 221.9

ltr 270 296 330 490 533 570 754 840

Heat exchanger surface

water-cooled ft.

85.0 107.6 123.8 176.5 200.2 245.4 316.5 383.2

7.9 10.0 11.5 16.4 18.6 22.8 29.4 35.6

Max. operating temperature °F 210

°C 99

Max. operating pressure psig 30

kpa 207

Flue gas resistance “w.c. 0.40 0.56 0.64 0.80 0.88 1.08 1.20 1.32

Pa 100 140 160 200 220 270 300 330

Boiler connections

boiler supply (BS)

& return (BR1)

Boiler return (BR2)*

Safety supply

Boiler drain

Condensate drain

inches

2½

1¼

2½

1¼

100

125

100

2½

125

100

2½

Vent pipe

internal Ø inches

201

251

301

Flue gas values*

Temperature (at a return

temperature of 86°F / 30°C)

- at rated input

- at partial load

Temperature (at a return

temperature of 140°F / 60°C)

Mass flow rate (of flue gas)

Gas volume of combustion

chamber and heat exchanger

°F

°C

°F

°C

°F

°C

lbs/h

kg/h

ft.

113

104

167

704

320

8.83

0.250

113

104

167

928

422

9.92

0.281

113

104

167

1179

536

12.00

0.340

113

104

167

1531

696

15.90

0.450

113

104

167

1903

865

18.40

0.521

113

104

167

2380

1082

21.54

0.610

113

104

167

2979

1354

40.61

1.150

113

104

167

3705

1684

42.73

1.210

Pressure

at boiler flue outlet

- at partial input

- at maximum input

±0

-3

-4

±0

-2

-5

±0

Boiler has two return connections - the heating return with the lower temperature should be connected to the boiler return BR1.

Values for calculating the size of the flue system based on 1 % CO

for natural gas.

Flue gas temperatures measured as gross values at 68ºF / 2 ºC combustion air temperature.

The details for partial load refer to an output of 3 % of rated input. Calculate the flue gas mass flow rate accordingly when the

partial load differs from that stated above (subject to the burner mode).

For information regarding other Viessmann System Technology componentry, please reference documentation of respective product.

Technical Data

6VITOCROSSAL 300, CT3

Note: - Dimensions p through z shown above are listed on page 4.

- Minimum shipping dimensions: use “o” in the table below, and height, width q or y (which ever is larger) in the diagram above.

Dimensions

Boiler model CT3- 17 22 28 37 46 57 72 89

o(split boiler

shipping length)

Recomended

Boiler pad

inches

inches (L)

inches (W)

inches (H)

28¾

715

11¾

298

20½

518

62¾

1594

76e

1940

177

227

31½

802

180

257

51¼

1299

7½

194

5½

141

942

1200

889

100

28¾

715

11¾

298

20½

518

64¼

1631

1980

177

227

33½

852

180

257

1349

7½

194

5½

141

1020

1270

889

100

28¾

715

11¾

298

20½

523

64¾

1644

78f

1996

177

221

33½

852

180

257

1349

7½

194

4¾

121

42½

1081

1346

889

100

29¾

751

12¾

325

22¾

577

1854

88¾

2254

9½

200

241

36¼

921

182

11¼

284

1500

7½

190

42½

1079

1500

990

100

29¾

751

12¾

325

22¾

577

1854

88¾

2254

9½

200

241

36¼

921

182

11¼

284

1500

7½

190

45½

1157

1573

990

100

29¾

751

12¾

325

22¾

577

1854

88¾

2254

9½

200

241

36¼

921

182

11¼

284

1500

7½

190

51½

1313

1727

990

100

29¾

755

14¼

363

25¼

644

80½

2043

2463

250

280

965

225

360

63¾

1621

7¾

197

2½

55¼

1405

1930

1092

100

29¾

755

14¼

363

25¼

644

80½

2043

2463

250

280

965

225

360

63¾

1621

7¾

197

2½

1599

1930

1092

100

The minimum combustion head length of 5½” / 14 mm must be maintained. When a burner with a shorter combustion head is used,

all functions including combustion results must be verified. The maximum combustion head length must also be observed so that the

burner on the hinged combustion chamber door can swing into service position. Radius of door hinge to outside combustion head:

18¾” / 476 mm.

Legend

V Vent pipe connection

SH Female connection R ½” for air vent

and pressure gage

D Drain

CD Condensate drain

BR 1 Boiler return 1

BR 2 Boiler return 2

BTS Boiler temperature sensor

BD Boiler door with burner connecting

flange

BS Boiler supply

IO Inspection opening

SS Safety supply for pressure relief

valve

OP Observation port (boiler from

CT3-17 - 28: offset by 90º )

Technical Data

VITOCROSSAL 300, CT3 7

Recommended minimum service clearances

Boiler

Burner

To enable convenient installation and

maintenance observe the stated clearance

dimensions. Maintain the minimum

clearances where space is tight. In the

delivered condition the boiler door opens to

the right. You can relocate the hinge bolts

so that the door can open to the left.

Mechanical room

HDo not operate when air is polluted with

halogenated hydrocarbons (e.g. as in

aerosols paints solvents and cleaning

agents)

HPrevent very dusty conditions

HPrevent high levels of humidity

HPrevent freezing and ensure good

ventilation

Boiler model CT3- 17 22 28 37 46 57 72 89

inches

711

62¾

1593

36½

930

1012

41¼

1048

711

65¾

1671

39¼

1000

1012

41¼

1048

711

1752

43¼

1100

1012

41¼

1048

889

1828

1500

44½

1128

45¼

1149

889

1906

1500

44½

1128

45¼

1149

991

81¼

2062

1500

44½

1128

45¼

1149

1143

85½

2172

1500

1243

1219

1143

93¼

2366

1500

1243

1219

inimum clearances to com usti les

Boiler model CT3- 17 22 28 37 46 57 72 89

Top 6” / 150 mm

Sides 6” / 150 mm

Flue As per vent manufacturer’s specifications

Front 6” / 150 mm

Floor combustible

Length of

burner

500

19¾”

500

19¾”

200 mm

8”

Technical Data

8VITOCROSSAL 300, CT3

Pressure drop (primary circuit)

The Vitocrossal 300 boiler is only suitable for heating systems with

pumped heating water.

Legend:

CT3-17 to -22

CT3-28

CT3-37 to -57

CT3-72 to -89

Recommended Flow Rates

Boiler model CT3- 17 22 28 37 46 57 72 89

20°F ∆t

40°F ∆t

11°C ∆t

22°C ∆t

GPM

ltrs/s

3.9

2.0

5.1

2.6

103

6.5

3.3

134

8.5

4.2

166

10.5

5.3

208

104

13.2

6.6

260

130

16.5

8.2

323

162

20.4

10.3

∆t= temperature difference

This boiler does not require a flow switch.

100

2 3 4 5 6 7 8 10 20 30 40 50

Flow rate

Pressure drop

”w.c.

8.8 13.2

17.6

26.4

44 88 132 176 GPM

220

264

308

352

mbar

70 80

3.2

2.8

2.4

1.6

1.2

0.8

0.4

Standard Equipment

Boiler Control Alternatives

VITOCROSSAL 300, CT3 9

Standard Equipment

Note:

Boiler controls and burners are purchased

separately. Please see Price List for details.

Boiler body and fitted boiler door with burner

plate fitted clean-out cover and fitted

mating flanges incl. gaskets on all

connectors with flue gas collector.

For tight spaces Vitocrossal 300 can also be

delivered in sections. The front of the

combustion chamber can be removed on

site be brought into the boiler room and

refitted there.

H2 cartons with insulation

H1 carton containing boiler control unit

H1 water connection pipe fitted to the

boiler skid (from CT3-37)

H1 burner plate pack

H1 carton of installation fitting

Standard equipment of installation fittings

includes:

Hlow water cut-off

Hsafety header (c/w 30 psig pressure relief

valve air vent and pressure gage)

Hdrain valve

Hproduct documentation

Ensure

specific regional, provincial, or

state requirements, such as gas train and

additional safety control requirements

etc., are known efore the product order

is placed, to determine proper urner

selection and pricing.

Boiler Control Alternatives

For single oiler systems:

Hwithout Vitocontrol control panel

Vitotronic 100 (type GC1)

for constant boiler water temperature or

outdoor reset mode in conjunction with an

external control unit (BMS).

Vitotronic 300 (type GW2)

for modulating boiler water temperature

with mixing valve control for a maximum

of two heating circuits with mixing valve.

Hwith Vitocontrol control panel

Vitotronic 100 (type GC1)

and

Vitocontrol-S, CT3 control panel

with Vitotronic 333 for outdoor reset

mode and mixing valve control for a

maximum of 2 heating circuits with mixing

valve and additional Vitotronic 050

type HK1S or HK3S for 1 or up to 3

heating circuits with mixing valve.

For multi- oiler system (up to

4 boilers):

Hwithout Vitocontrol control panel

Vitotronic 100 (type GC1) and LON module

for modulating boiler water temperature in

conjunction with an extrnal control unit

(BMS).

Hwith Vitocontrol control panel

Vitotronic 100 (type GC1) and LON module

for modulating boiler water temperature

for each boiler of the multi-boiler system

and

Vitocontrol-S, CT3 control panel

with Vitotronic 333 for multi-boiler system

outdoor reset mode and mixing valve

control for a maximum of 2 heating circuits

with mixing valve and additional

Vitotronic 050 type HK1S or HK3S for 1 or

up to 3 heating circuits with mixing valve.

For single- or multiple- oiler

installations:

Custom control panels

Custom control panels for residential or

commercial applications are designed and

manufactured by Viessmann to suit any

customer’s specific requirements. Custom

control panels can have features such as

pool heating hot tub heating snow melting

telephone tie-in integration with Building

Management Systems as well as several

other functions. Please inquire.

IMPORTANT

System Design Considerations

10 VITOCROSSAL 300, CT3

System Design Considerations

Venting

The Vitocrossal 300 boiler is a category IV

positive pressure condensing boiler. Each

boiler must be vented individually.

Depending on the boiler return water

temperature the flue gases in the boiler are

cooled down into the condensation or dew

point area of the flue gases. Where they exit

the boiler they reach a relative moisture of

100%. The flue gas temperature is between

9°F and 27°F (5°C and 15°C) higher than

the boiler return water temperature.

Therefore depending on the connected

heating system the flue gas temperature

can be beween 77°F / 25°C and 200°F /

93°C. Due to the low flue gas temperature

and the resulting minute updraft conditions

as well as the additional condensation of the

flue gases in the venting system the vent

system must be properly designed and

suitable materials must be selected. The

chimney must be gas and water tight.

Use an AL29-4C® special stainless steel

venting system (UL/ULC/CSA listed for

category IV) for vertical venting of the

Vitocrossal 300 boiler.

The following manufacturers may be

contacted for suitable stainless steel

chimneys:

ProTech Systems Inc.

26 Gansevoort Street

Albany NY 12202

Tel.: (518) 463-7284

Fax: (518) 463-5271

Toll free: 1-800-766-3473

Selkirk Metal estos

Selkirk Canada Corporation - head office

375 Green Road

Stoney Creek ON L8E 4A5

Tel.: (905) 662-6600

Fax: (905) 662-5352

Toll free: 1-800-263-9308

Security Chimneys

Division of Security Chimneys Ltd.

2125 Monterey

Laval PQ H7L 3T6

Tel.: (450) 973-9999

Fax: (450) 973-2222

Toll free: 1-800-667-3387

Van-Packer Co. Inc.

302 Mill Street

PO Box 307

Buda IL 61314

Tel.: (309) 895-2311

Fax: (309) 895-3891

Toll free: 1-888-877-8225

Exhausto CASV/CASI

Mechanical Draft System

Wesmech Technical Sales

50 Ronson Drive Suite 160

Toronto ON M9W 1B3

Tel.: (416) 251-8990

Fax: (416) 251-8900

Toll free: 1-800-613-3789

Condensate and its disposal

During the operation of the boiler the

amount of condensate to be expected can

be read from the diagram below.

The values given are approximate amounts

occurring under practical conditions. Not

included in the diagram is the amount of

condensate occurring in the vent pipe and

chimney system. The condensate from the

chimney system can be collected together

with the condensate from the heating boiler

and be disposed of into a floor drain. The

condensate will be between 3 and 4 on the

pH scale. If local building requirements

demand neutralizing the condensate before

disposal contact Viessmann Manufacturing

Company Inc. for a correctly sized

neutralization tank. The treated condensate

will show pH values of between 6.5 and 9

and can then be disposed of into the waste

water system.

Do not use PVC or CPVC material for

venting the Vitocrossal 300 oiler.

CAUTION

Flue gas temperature gross

Boiler water return temperature

Amount of condensate

Note: The “amount of condensate” and the “flue gas temperature

gross” graphs are independent of each other.

Andere Handbücher für VITOCROSSAL 300

Dieses Handbuch passt für folgende Modelle

Andere Viessmann Kessel Handbücher

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