Hoval CompactGas 700-2800 User manual

Brand: Hoval

Model: CompactGas 700-2800

Category: Water heaters & boilers

Type: User manual

Subject to modi cations | EN

Technical information

Assembly instructions

4 205 753 / 06 - 06/14

Hoval products must be installed and commissioned

only by appropriately qualied experts. These instruc-

tions are intended exclusively for the specialist. Electri-

cal installations may only be carried out by a qualied

electrician.

The gas boiler series Compact is suitable and appro-

ved for use as heat generator for water heating plants

with permitted ow temperatures up to 110 °C1). They

are designed for closed-circuit plants according to

EN 12828.

1) see section Technical data

Hoval CompactGas (700-2800)

for natural gas and liquid gas

These instructions apply to the following ty-

pes:

Nominal output at 80/60 °C and natural gas

1-CompactGas (700) 700 kW

1-CompactGas (1000) 1000 kW

1-CompactGas (1400) 1400 kW

1-CompactGas (1800) 1800 kW

1-CompactGas (2200) 2200 kW

1-CompactGas (2800) 2800 kW

24 205 753 / 06

TABLE OF CONTENTS

1. Safety notices

1.1 Key to symbols ....................................................................................................................................................................4

2. Important notices

2.1 Measures on receipt of the appliance .................................................................................................................................5

2.2 Warranty ............................................................................................................................................................................... 5

2.3 Instructions .......................................................................................................................................................................... 5

2.4 Regulations, official approvals ...........................................................................................................................................5

2.4.1 Germany ........................................................................................................................................................................... 5

2.4.2 Austria ..............................................................................................................................................................................6

2.4.3 Switzerland .......................................................................................................................................................................6

3. Assembly

3.1 Installation, levelling ...........................................................................................................................................................7

3.2 Mounting the condensate drain ..........................................................................................................................................9

3.3 Mounting the thermal insulation .........................................................................................................................................9

3.4 Mounting the cladding and the boiler control .................................................................................................................. 11

3.5 Mounting the side shutters ...............................................................................................................................................13

3.5.1 Mounting the flexible side shutter (detail A,B,C) ..............................................................................................................13

3.5.2 Mounting the fixed side shutter (detail D) ........................................................................................................................13

4. Technical details

4.1 Description of the boiler ...................................................................................................................................................14

4.2 Technical data ....................................................................................................................................................................15

4.3 Dimensions / Space required ............................................................................................................................................16

4.3.1 Dimensions ..................................................................................................................................................................... 16

4.3.2 Base size ........................................................................................................................................................................17

4.4 Flue gas and output diagrams ..........................................................................................................................................18

4.4.1 Flue gas - output diagram ...............................................................................................................................................18

4.4.2 Flue gas resistance ......................................................................................................................................................... 18

5. Installation

5.1 Safety notices ....................................................................................................................................................................19

5.2 Requirements for boiler room ........................................................................................................................................... 19

5.3 Flue gas connection, flue gas pipe, dimensions of flue gas pipe ...................................................................................19

5.4 Installing the burner ..........................................................................................................................................................21

5.5 Hydraulic connection ........................................................................................................................................................21

5.5.1 Pressure maintenance ....................................................................................................................................................21

5.5.2 Hydraulic connection .......................................................................................................................................................21

5.5.3 Hydraulic schematic ........................................................................................................................................................ 22

5.6 Gas connection ..................................................................................................................................................................22

5.7 Electrical connection .........................................................................................................................................................23

34 205 753 / 06

TABLE OF CONTENTS

6. Commissioning

6.1 Safety notices ....................................................................................................................................................................24

6.2 Charging with water ..........................................................................................................................................................24

6.3 Water quality ...................................................................................................................................................................... 25

6.3.1 Heating Water .................................................................................................................................................................25

6.3.2 Filling and replacement water .........................................................................................................................................25

6.4 Venting the gas pipes ........................................................................................................................................................ 26

6.5 Handing over the plant to the operator ............................................................................................................................26

6.6 Record - Activation of screed function ............................................................................................................................. 27

7. Maintenance

7.1 Information for combustion controller/chimney sweep regarding emission monitor key .............................................29

7.2 Safety notices ....................................................................................................................................................................30

7.3 Venting ...............................................................................................................................................................................30

7.4 Replenishing water ............................................................................................................................................................ 30

7.5 Cleaning .............................................................................................................................................................................31

8. Overview of settings

8.1 Table of parameters ........................................................................................................................................................... 32

8.2 Fault Reporting overview TopTronic®T .............................................................................................................................42

44 205 753 / 06

IMPORTANT INFORMATION

1. Safety notices

The plant must only be commissioned

when all relevant standards and safety re-

gulations have been fullled.

For test operation at least the following conditions must

be met:

- safety valve installed (closed-circuit plant)

- control unit in operation (connected to mains electricity)

- sensor for safety temperature limiter connected (= boi-

ler temperature sensor)

- plant lled with water

- expansion tank connected

- ue gas outlet with ue gas pipe connected to chimney

- burner preset

1.1 Key to symbols

Tools:

Shows which tools you will need for the

following steps.

Instructions for action:

Here you will need to undertake specic

action.

Result:

Shows the result to be expected from the

action.

Reference to standards and guidelines.

Notice:

Supplies important information.

Safety notices:

Warns of potential danger of injury.

Caution notices:

Warns of potential damage to machines

and plants.

Supplies important information.

54 205 753 / 06

IMPORTANT INFORMATION

2. Important notices

2.1 Measures on receipt of the appliance

As soon as the boiler is delivered, per-

form a visual check.

If damage should be detected, undertake

the necessary steps as detailed in the de-

livery contract.

The costs for repairs will be borne by the

respective risk taker.

2.2 Warranty

The following defects are not covered by

warranty:

- non-observance of these instructions

- non-observance of the handbook

- faulty installation

- non-approved alterations

- improper treatment

- undue force being applied

- contaminated operating media (gas, wa-

ter, combustion air)

- corrosion through halogen compounds

(e.g. paints, adhesives, solvents)

unsuitable chemical additives in the

heating water

- corrosion through non-compliance with

the water quality requirements

2.3 Instructions

All the instructions which you will need

for the operation of your plant can be

found together in the Hoval plant hand-

book. Please keep all instructions in a

safe and accessible place!

In some exceptional cases the instruc-

tions are to be found with the specic

components!

Further sources of information:

- Hoval catalogue

- standards and regulations

2.4 Regulations, official approvals

For the installation and operation of the

plant the standards and regulations listed

in sections 2.4 (see page 6) must be ob-

served.

2.4.1 Germany

• DIN EN 12831 Heating systems in buil-

dings – procedure for calculating the

standard heating load.

•

DIN EN 13384 Exhaust gas systems –

thermal and uid dynamic calculation

methods.

• DIN EN 12828 Heating systems in buil-

dings - planning of hot water systems.

• DIN 4756 Gas-red systems: design,

construction and technical safety requi-

rements, planning and execution (for

operation with gas burners).

• DIN 18160 House chimneys, require-

ments, planning and execution.

• TRD 702 Steam boiler plants with calori-

ers of the group II.

• TRD 721 Safety equipment to safegu-

ard against excess pressures / safety

valves / for group II steam boilers.

• VDI 2035 Prevention of damage by cor-

rosion and the formation of scale in hot

water systems.

• DIN 57 116 / VDI 0116 Electrical equip-

ment for ring systems.

• (VDE regulation).

• For further standards applying to Ger-

many see attachment N-430 020.

2.4.2 Austria

•

OENORM 12831 Heating installations

in buildings – procedure for calculating

the standard heating load

•

OENORM 13384 Exhaust gas systems

– procedure for heat and technical gas-

ow calculations.

•

OENORM 12828 Heating systems in

buildings: planning of hot water heating

systems.

•

ÖNorm B 8130 Open hot water, systems,

safety installations.

•

ÖNorm B 8131 Closed-circuit hot water

systems, safety, construction and tes-

ting regulations.

•

ÖNorm B 8133 Water heating systems,

technical safety requirements.

• ÖNorm B 8136 Heating systems, space

requirements and other building requi-

rements.

•

ÖNorm M 7515 Calculation of chimney

dimensions; denition of expressions,

calculation procedures.

• ÖNorm H 5171 Heating systems – tech-

nical building requirements.

• ÖVGW TR gas

64 205 753 / 06

IMPORTANT INFORMATION

2.4.3 Switzerland

SN EN 12831 Heating installations in

buildings – procedure for calculating

the standard heating load.

SN EN 13384 Exhaust gas systems –

procedure for heat and technical gas-

ow calculations.

- SN EN 12828 Heating systems in buil-

dings: planning of hot water heating

systems.

- VKF-Association of Cantonal Fire Insu-

rers.

- Regulations of the re police.

- SVGW Schweiz. Swiss Gas and Water

Federation.

SNV 27 10 20 Aeration and ventilation of

the boiler room.

- SWKI 88-4 Water treatment for heating,

steam and airconditioning plant.

- SWKI 80-2 Technical safety regulations

for heating installations.

- KRW Corrosion caused by halides.

KRW/VSO/FKR Electrical connections

on heating boilers and burners ready to

plug in.

- FCOS - Guidelines for liquid gaz, part 2

and further regulations and standards issued by CEN,

CEN ELEC, DIN, VDE, DVGW, TRD and government

authorities. The regulations issued by local buildings au-

thorities, insurers and chimney sweeps must also be ob-

served. Where gas is used as a fuel the regulations of the

local gas supplier must be observed. An ofcial licence

may be needed.

74 205 753 / 06

ASSEMBLY

3. Assembly

3.1 Installation, levelling

No special foundation plate is required for installing the

boiler (sufcient supporting capacity for the boiler must

be guaranteed); see section Technical data for operatio-

nal weight.

In the case of boiler installation in the domestic domain,

vibration absorbers are to be mounted under the boiler

plinth rails.

Space required

for mounting the thermal insulation and sheet metal clad-

ding:

is to be at least 40 cm laterally, to the left and right

side of the boiler.

If the distance from walls is less, the boiler must rst be

completely thermally insulated and cased before being

placed into the installation position designated.

Levelling

The upper edge of the boiler water jacket (boiler longitu-

dinal axis) must be levelled by means of a spirit level until

it is aligned exactly horizontally.

Mount the door liner (door cladding) before instal-

ling the burner (for heating trials, with the boiler not

yet thermally insulated).

Delivery from factory-boiler door opens to the right

However the boiler door hinges can be changed over to

enable the door to be opened to the left. This can be use-

ful when space is limited.

Boiler door hinges may only be changed

over by Hoval Service!

The boiler door must be closed when changing over the

hinges - procedure:

1. For types 1800,2200,2800 only:

Dismantle support for door positioning (5, Fig. 02)

2. Tighten the top and bottom lock nuts (1, Fig. 01) to-

wards the swing-out ange (manually).

3. Mount ange nuts (2, Fig. 01) with the hole

diagonally on the new opening side, i.e.,

- change over the bottom left and top right ange nut and

- change over the top left and bottom right ange nut.

4. Open boiler door after removing ange nuts (2 , Fig.

02) and turn back locknuts (3, Fig. 02) approx. 1-2cm.

As a result, the boiler door is pressed against the

sealing gasket without hindrance.

5. Mount the burner plug connector on the other side.

The cable must not contact any hot parts.

6. Mount door rabbet (5, Fig. 01) on the other side and

adjust it (angle of door opening 90°).

Figure shows situation as delivered

(boiler door opens to the right)

Fig. 04 Fig. 05

Position mechani-

cal jack

Figure shows situation after transformation

(boiler door opens to the left)

84 205 753 / 06

ASSEMBLY

7. For types 1800,2200,2800:

Remount support for door positioning (5, Fig. 01) on

the other side, readjust if necessary resp. level boiler

door rst!

After changing over the hinges it might be necessary to

align (level) the boiler door! (Hanging boiler door)

Procedure:

8. Open boiler door approx. 10cm.

9. Raise boiler door (20-30mm) by means of a mechani-

cal jack (or jack) by slightly loosening ange nuts (2,

Fig. 01).

Do not loosen ange nuts entirely nor remo-

ve them as the boiler door might fall down.

10. After leveling the boiler door, retighten ange nuts (8,

Fig. 02) securely.

3.2 Mounting the condensate drain

The consensate drain is to be mounted according to (Fig.

04).

Fig. 01

Fig. 02

3.3 Mounting the thermal insulation

1. Wrap the insulating mats (1,1a, Fig. 06) around the

boiler body. The insulating mat (1a, Fig. 06) has to be

applied in such a way that the large recess (1b, Fig.

06) is located at the back.

2. Fix the insulating mats (1/1a, Fig. 06) with plastic

straps and strap fasteners (2a, Fig. 06):

- Tension springs (2, Fig. 06) serve for additional -

xing (2b, Fig. 06)

- Do not overtighten the straps (reduced insulation

effect)

3. Place insulating mats (3, Fig. 06) on the boiler rear

panel and attach them to the insulating mat of the

boiler body using tension springs.

4. Wrap the insulating mat (4, Fig. 06) around the ue

gas collector ring and x it below with retaining discs

(Figure 4).

5. Wrap the insulating mat (5, Fig. 06) around the ue

gas collector and x it using retaining discs (Fig. 05).

6. Place insulating mats (6,7,8, Fig. 06) on the boiler

front and x them with retaining discs ( ).

Fig. 03

Notice

The mounting of the insulating mats (6,7,

Fig. 06) may be facilitated by cutting them

through at the narrowest section.

7. Attach the Compact Gas (1800-2800) insulating mats

(8a, Fig. 06) to the boiler door without the use of re-

taining discs.

The remaining insulating mats (20a,24, Fig. 10) are xed

with the mounting of the cladding (see Fig. 06).

94 205 753 / 06

ASSEMBLY

Fig. 06

Insulating mat may be partitioned

10 4 205 753 / 06

ASSEMBLY

3.4 Mounting the cladding and the boiler con-

trol

1. Fix bolts (20, Fig. 10) (Compact Gas (1800-2800):

incl. distance spacers) at the boiler door using he-

xagonal nuts and U-washers, then insert insulating

mat (20a, Fig. 10) into boiler door cladding (20b, Fig.

10) and mount onto boiler door (Compact Gas (1800-

2800): 2 parts boiler door claddings - mount inferior

rst).

2. Integrate burner plug (21, Fig. 10) into the left (resp.

right) side panel and lead burner cable upwards

(cable routing according to Image Fig. 10). Insert

right and left side panels (22, Fig. 10) into retaining

bracket (32, Fig. 10), attach 1 C-Clip each (29, Fig.

07) to the front of the side panels.

3. Insert rear panels (23, Fig. 10) into folded edges (22,

Fig. 10) (Compact Gas (2800): 6 pieces) of side wall.

4. Insert 2 insulating mats (24, Fig. 10) left and right in

longitudinal direction (to prevent vertical air circulati-

on).

5. Mount 2 special screws (14,Fig. 07, Fig. 10) with lock-

nut on the side panel. These are used for mounting

the control box.

6. Remove control box cover plate (11, Fig. 07). The

control panel (12a, Fig. 08) must be turned. For this

purpose the pressure lock sleeves (12b, Fig. 08, com-

press and pull away) as well as the earth screw and

serrated lock washer (12d, Fig. 08) must be removed.

Attach the control box (12, Fig. 08, Fig. 10) with the

cut-out for special screws to the cladding side panel

(22, Fig. 10) and secure with 2 self-tapping screws

Ø 3,5 x 6,5 and serrated lock washers (12c, Fig. 08).

7. Pull capillaries with immersion sensors (17, Fig. 09)

through the opening (15, Fig. 07), put it into immersi-

on sleeve (18, Fig. 09) up to the stop and secure with

retaining spring (16, Fig. 09)

Attention: the capillaries must not be

kinked!

8. Lead burner plug (21, Fig. 10) to the control and plug

in.

9. Mount cover plate (11, Fig. 07) with 3 self-tapping

screws Ø 3,5 x 6,5 and serrated lock washers (13,

Fig. 07).

10. Place walkable cover in proper sequence 26, 27, 28

on the bracket (32, Fig. 10), x front cover (30, Fig.

10) using 2 self-tapping screws (31, Fig. 10) Ø 4,8

x 50 and level with height-adjustable elbow (34, Fig.

10).

11. Afx rating plate and retainer for handbook (33, Fig.

10) to the side.

12. Mounting the side shutter see Fig. 11.

1113

Fig. 07

12c

180°

12d

12c

12b

12a

Fig. 08

Fig. 09

114 205 753 / 06

ASSEMBLY

20a

20b 22

29 32

Compact Gas

(1800-2800)

cutaway view

Fig. 10

12 4 205 753 / 06

ASSEMBLY

3.5 Mounting the side shutters

The cladding shutter system serves for covering the gap

between the boiler door and the side wall. The shutter at

the boiler door hinge side must be exible.

3.5.1 Mounting the flexible side shutter (detail A,B,C)

1. Mount hinges (40, Fig. 11) on top and bottom of front

side wall using self-tapping screws Ø 3,5 x 9,5.

2. Mount side shutter (41, Fig. 11) on right half of hinge

using 2 pieces of cross-head screws (42, Fig. 11) and

distance spacers (44, Fig. 11), use 1 piece each for

top and bottom (detail A,B). Secure against extraction

using two hexagonal locknuts (41a, Fig. 11). - ! Do no

clamp the hinge!

3. Mount magnets (46, Fig. 11) on top and bottom hole

of side ends (41, Fig. 11) using hexagonal nut M10

(47, Fig. 11), U-washer (48, Fig. 11) and hexagonal

screw M4 x 10 (49, Fig. 11) (detail C).

3.5.2 Mounting the fixed side shutter (detail D)

4. Open boiler door, mount hinges (40, Fig. 11) on

top and bottom of front side wall using self-tapping

screws Ø 3,5 x 9,5.

5. Mount side shutter (41, Fig. 11) according to gure on

top and bottom using 4 pieces of cross-head screws

(42,43, Fig. 11) and distance spacers (44, Fig. 11)

42 43

45° incline

boiler side

4 0

41a

Fig. 11

134 205 753 / 06

TECHNICAL INFORMATION

4. Technical details

4.1 Description of the boiler

The Hoval CompactGas is a low-pollution, energy saving

gas boiler. The Hoval CompactGas has a horizontal com-

bustion chamber as primary heating area and a second-

ary heating area consisting of aluFer® composite tubing.

The CompactGas is designed for operation using natural

gas and liquid gas. The construction principles are dis-

played in the following diagram.

Fig. 12

14 4 205 753 / 06

TECHNICAL INFORMATION

4.2 Technical data

Type (700) (1000) (1400) (1800) (2200) (2800)

• Nominal output at 80/60 °C kW 700 1000 1400 1800 2200 2800

• Range of output at 80/60 °C kW 250-700 300-1000 420-1400 540-1800 660-2200 840-2800

• Burner input maximum kW 725 1037 1458 1865 2280 2901

• Maximum working temperature 1°C 105 105 105 105 105 105

• Minimum working temperature °C 75 75 75 75 75 75

• Minimum boiler return temperature °C 35 35 35 35 35 35

• Safety temperature limiter setting

(water side) 2

°C 120 120 120 120 120 120

• Working/test pressure bar 6/9 6/9 6/9 6/9 6/9 10/16

•Boiler efciency at full load at 80/60 °C

(net caloric value/gross caloric value) % 96.5/87.0 96.4/86.9 96.0/86.5 96.5/87.0 96.5/87.0 96.5/87.0

•Efciency at partial load 30% (EN 303)

(net caloric value/gross caloric value) % 97.4/87.7 97.4/87.7 97.3/87.7 97.4/87.7 97.5/87.8 97.5/87.8

•Standard efciency 75/60 °C (according to DIN 4702 part 8)

(net caloric value/gross caloric value) % 97.4/87.7 97.4/87.8 97.1/87.5 97.5/87.9 97.5/87.9 97.5/87.9

• Stand-by loss at 70 °C Watt 850 1000 1200 1350 1550 1800

• Flue gas temperature at nominal output at 80/60 °C °C 94 101 102 99 93 92

• Flue gas resistance at nominal output

10.5% CO2 natural gas

500 m over sea level (Tolerance ± 20%) mbar 4.9 4.8 4.7 5.7 6.5 7.2

•Flue gas mass ow at nominal output

10.5% CO2 natural gas kg/h 1133 1623 2271 2923 3571 4546

• Flow resistance boiler 3z-value 0.012 0.012 0.003 0.003 0.003 0.002

•Water ow resistance at 20 K mbar 10.8 22.0 10.8 17.9 26.7 28.8

•Water ow volume at 20 K m³/h 30.0 42.9 60.0 77.1 94.3 120.0

• Boiler water content litres 670 1130 1580 2020 2534 2844

• Insulation thickness boiler body mm 80 80 80 80 80 80

• Weight (incl. casing) 6 bar kg 1390 2100 2794 3500 4455 5567

• Weight (without casing) 6 bar kg 1250 1960 2654 3200 4105 5167

• Heating surface m² 36.52 44.23 68.49 89.51 117.26 142.34

• Combustion chamber dimension

Ø inside x length mm 584/1835 684/1985 830/2180 830/2301 830/3076 922/3272

• Combustion chamber volume m³ 0.492 0.729 1.179 1.244 1.663 2.222

• Dimensions see Dimensions

1 Limited by the boiler control T2.2 to 90 °C resp. U3.2 and T0.2 to 105 °C.

2 Maximum safety temperature for boiler control T2.2: 110 °C resp. U3.2 and T0.2: 120 °C.

3 Flow resistance boiler in mbar = volume ow (m3/h)2 x z

154 205 753 / 06

TECHNICAL INFORMATION

4.3 Dimensions / Space required

4.3.1 Dimensions

(all dimensions in mm)

Type a b c d e f g h i k (inside)

(700) 1100 1150 1175 590 250 290 330 6xM12 15˚ 303

(1000) 1280 1330 1384 710 310 350 400 6xM12 15˚ 353

(1400) 1480 1530 1584 810 330 400 450 6xM16 15˚ 403

(1800) 1580 1630 1684 860 330 400 450 6xM16 15˚ 453

(2200) 1580 1630 1684 860 330 400 450 6xM16 15˚ 453

(2800) 1680 1730 1784 910 330 400 450 6xM16 15˚ 503

Type l * m n o p q r s t u v w

(700) 1436 2229 240 1930 389 1110 170 1271 96 1406 420 31

(1000) 1646 2430 240 2130 438 1210 170 1487 103 1564 500 31

(1400) 1886 2600 240 2300 438 1350 170 1708 124 1780 550 31

(1800) 2038 2790 257 2438 438 1350 187 1808 124 1884 600 48

(2200) 2038 3529 257 3213 438 2125 187 1808 124 2659 600 48

(2800) 2188 3745 257 3430 638 2100 187 1908 124 2799 600 48

Flow

(700) DN 125, PN6

(1000) DN 125, PN 6

(1400) DN 150, PN 6

(1800) DN 150, PN 6

(2200) DN 150, PN 6

(2800) DN 200, PN 10

1 Flue gas outlet

2Draining R 1″

3 Condensate drain D 31/25 mm (on both sides)

4 Electrical connection (on both sides)

5 Control panel

6Sleeve Rp ¾″ with immersion pocket

for boiler temperature sensor

Return

(700) DN 125, PN6

(1000) DN 125, PN 6

(1400) DN 150, PN 6

(1800) DN 150, PN 6

(2200) DN 150, PN 6

(2800) DN 200, PN 10

Fig. 13

16 4 205 753 / 06

TECHNICAL INFORMATION

4.3.2 Base size

Dimensions without insulation and casing

Boiler incl. boiler door, outlet without ue gas collector

(dimensions in mm)

Type a b * c d e f g h i k (inside)

(700) 1100 1436 1153 590 250 290 330 6xM12 15˚ 303

(1000) 1280 1646 1363 710 310 350 400 6xM12 15˚ 353

(1400) 1480 1886 1563 810 330 400 450 6xM16 15˚ 403

(1800) 1580 2038 1663 860 330 400 450 6xM16 15˚ 453

(2200) 1580 2038 1663 860 330 400 450 6xM16 15˚ 453

(2800) 1680 2188 1763 910 330 400 450 6xM16 15˚ 503

Type l m n o p q r s t DN

(700) 80 2212 209 1930 389 1110 84,5 1271 180 125

(1000) 80 2423 209 2130 438 1210 96 1487 180 125

(1400) 80 2593 209 2300 438 1350 112 1708 200 150

(1800) 80 2731 209 2438 438 1350 112 1808 200 150

(2200) 80 3506 209 3213 438 2125 112 1808 200 150

(2800) 80 3723 209 3430 638 2100 112 1908 200 200

* with condensate trap: + 155 mm

A condensate trap must imperatively be mounted!

Combustion chamber dimensions

Type A B C D E

(700) 219 1644 1835 584 189

(1000) 219 1748 1985 684 189

(1400) 219 1896 2180 830 189

(1800) 219 1998 2301 830 189

(2200) 219 2968 3288 922 189

(2800) 219 2941 3272 930 189

Fig. 14

Fig. 15

174 205 753 / 06

TECHNICAL INFORMATION

4.4 Flue gas and output diagrams

4.4.1 Flue gas - output diagram

kW = Boiler output

°C = Flue gas temperature on clean surface,

boiler ow temperature

80°C, return temperature 60°C

(in accordance with DIN 4702).

• Operated with natural gas H, λ = 1,15 with max. bruner output

• (CO2 natural gas H = 10,5 %)

• A reduction of the boiler water temperature of -10 K causes a reduc-

tion of the ue gas temperature of approx. 6-8 K.

• A modication of lambda λ of ± 0,09 causes a modication of the ue

gas temperature of ± 8 K.

4.4.2 Flue gas resistance

Flue gas resistance (mbar)

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800

1000 1400

1800

2200 2800

700

Flue gas temperature (°C)

Nominal output (kW)

100

105

200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800

1000

1400 1800

2800

2200

700

Boiler output (kW)

18 4 205 753 / 06

INSTALLATION

5. Installation

5.1 Safety notices

Caution!

Danger of injury through sharp edges.

Handle the cladding panels with care and

avoid contact with sharp edges.

5.2 Requirements for boiler room

• Observe the local and national building

regulations regarding boiler rooms.

• Observe the local and national regulati-

ons regarding ventilation and deaerati-

on of boiler rooms.

• Gas boilers may not be installed in

rooms which may contain halogen com-

pounds which may combine with the

combustion air (e.g. laundry rooms,

drying rooms, workshops, hairdressing

salon).

•

Halogen compounds may occur in,

amongst others, cleaning, de-greasing

and solvent substances, adhesives and

bleaching agents.

Always make sure that there is an adequate supply of

fresh air to the boiler room, to ensure that the combustion

air supply necessary for all the ring systems operated

can ow in without hindrance and that no oxygen deci-

ency occurs for the operating personnel.

The binding values for the size of intake air apertures

are not usually stated in the relevant regulations, it is laid

down only that the partial vacuum in the boiler room must

not exceed 3 N/m2. To comply with this requirement, an

air supply cross section of 500 cm2 is to be provided up

to a nominal heat output of 1000 kW. With rectangular

apertures the side ratio is not to exceed 1.5 : 1 and an ap-

propriate supplement is to be made with grilles to ensure

that the free cross section reaches the above values.

In Austria the ÖNorm H 5171 additionally stipulates a ue

air aperture. This must have a minimum cross section of

180 cm2 up to a nominal heat output of 100 kW. The cross

section is to be increased by 1 cm2 for each additionnal

kW.

5.3 Flue gas connection, flue gas pipe, dimen-

sions of flue gas pipe

To guarantee economic and fault-free operation, boiler

and chimney must be mutually adapted to create a func-

tional unit.

Renovation, respectively chimney cross section adjust-

ment may be necessary with existing chimney installati-

ons, according to the instructions of a chimney specialist.

194 205 753 / 06

INSTALLATION

The function of the chimney, i.e. the production of the ne-

cessary delivery pressure is basically dependent on:

a) he type (nature) of the chimney (thermal in-

sulation, interior

surface roughness, sealing etc),

b) the connection of the boiler to the chimney

according to specication,

c) the correct chimney cross section dimensio-

ning.

The national regulations must be obser-

ved.

ref. a)

Chimneys according to EN 13384, part 1/2, execution

types I and II are appropriate for modern ring systems

(advice from the chimney specialist is necessary). Pay

attention to the ue gas temperature at nominal output,

see section Technical data.

ref. b)

The condensate accumulating in the ue

gas pipe must not ow back to the boiler.A

condensate trap (Fig. 16) must therefore

be installed at the ue gas outlet (not in-

cluded in the scope of delivery).

condensate trap

Fig. 16

Normally only one heat generator may be

connected to the chimney!

If the integration of a transition element from the boiler

ue gas outlet to the chimney inlet is necessary, it should

be executed as a slender cone.

vom

Kessel

zum

Schornstein

Fig. 17

ref. c)

Dimensioning of chimney cross section. The cross sec-

tions are to be calculated for boilers without delivery pres-

sure demand according to EN 13384. Take into account

the local, special situation (position of the house on a slo-

pe, chimney position, roof pitch, shape of the chimney

mouth etc.)!

In Switzerland, take note of SIA recommendation 384/4!

In Austria the calculation is carried out according to

ÖNorm M 7515.

The values for calculation can be obtai-

ned from the table

in section Technical data.

from boiler to chimney

20 4 205 753 / 06

INSTALLATION

5.4 Installing the burner

• Burner installation dimensions may be obtained from

point 4.3.2.

• The burner is mounted on the boiler door by means of

the seal and screws. On installing, comply with the gui-

delines and instructions for mounting the burner on the

heat generator.

•

Use only burners tested according to EN 676 resp.

EN 267

• The space between the burner pipe and the boiler door

is to be insulated with the insulating wool supplied.

With gas burners, the burner housing

weight is to be directly supported by a

strut to the oor.

Boiler sight glass cooling:

A cooling line must be routed from the

burner to the sight glass (Fig. 18), in order

to cool the boiler sight glass and keep it

clean. Either a hose or a copper pipe can

be used.

Fig. 18

Noise damping

• Gas pipelines are to be installed so that no vibrations

can be transferred to the building.

• The burner can be covered with a noise-damping hood.

• It is recommended to incorporate a noise damper

downstream of the boiler in the ue gas pipe.

5.5 Hydraulic connection

In accordance with EN 12828:2003 the following safety

devices are integrated in the boiler:

- temperature regulator

- temperature measuring device TBmax + 20%

- safety temperature limiter

A complete failure of the water circuit must be taken into

account plant-specically according to DIN EN 12828.

In Germany, a low water protection must be provided.

5.5.1 Pressure maintenance

A pressure expansion tank sized appropriately for the

heating plant, water volume and head has to be installed

on site.

5.5.2 Hydraulic connection

The minimum return temperature has to be ensured by

constant return ow control. A minimum water circulation

is not necessary.

i seiD se tin

nu alre etburW e!g

eheG S n i enie en

cS rh üruz tti redo kc

csöl neheiS seid se

hS epa!

Sieah be id ne

göM khcile tie in

uenhS se uz epa

hen m ne !!!

ohvohv ohla ohlav av

ohlohlavhlav ohlav o

hlav ohlav o av avohll

ohohlavohlavhlavo

hlav o hlav o av

hlavolav

oh ohlavav

moCpGtca as

FLR

KYR

UZ P

Fig. 19

Page is loading ...

Hoval CompactGas 700-2800 User manual

Brand: Hoval

Model: CompactGas 700-2800

Category: Water heaters & boilers

Type: User manual

Download PDF

report

Hoval CompactGas 700-2800 User manual

Hoval CompactGas 700-2800 User manual

Related papers

Other documents