Hoval UltraGas 90 Installation Instructions Manual

Brand: Hoval

Model: UltraGas 90

Type: Installation Instructions Manual

This manual is also suitable for

UltraGas 70

The oor standing gas condensing boiler UltraGas

(15-

90) are designed and approved for use as heat genera-

tors for hot water heating systems with a permissible

ow temperature of up to 85ºC

, in accordance with EN

483 and EN 677. They are designed for continuously

adjustable reduced output operation in heating systems.

See technical data

Rated output levels at 40/30ºC and for

natural gas

30-UltraGas

(70) 13,6 - 69,9 kW

30-UltraGas

(90) 16,1 - 91,5 kW

UltraGas

(70,90)

Condensing gas heating boilers

for natural gas and liquid gas

for modulating operation

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.

Subject to modiﬁ cations |

Technical information

Installation instructions

4 210 266 / 03 - 04/12

4 210 266 / 03 2

1. Safety instructions

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

2. Important notes

2.1 Acceptance of delivery .......................................................................................................................... 5

2.2 Scope of guarantee ................................................................................................................................. 5

2.3 Instruction manuals ............................................................................................................................... 5

2.4 Regulations, ofﬁcial permits ................................................................................................................. 5

2.4.1 Germany ................................................................................................................................................... 6

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

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

3. Assembly

3.1 Placement ................................................................................................................................................ 7

4. Technical data

4.1 Description of the boiler ......................................................................................................................... 8

4.2 Technical data ......................................................................................................................................... 9

4.3 Dimensions / Space requirements ...................................................................................................... 10

4.4 Space requirements .............................................................................................................................. 11

4.5 Boiler-Flow resistance .......................................................................................................................... 12

4.6 Brief description of the automatic ﬁring device ................................................................................ 13

5. Installation

5.1 Safety information ................................................................................................................................. 14

5.2 Boiler room requirements .................................................................................................................... 14

5.2.1 Room air dependent installation .............................................................................................................. 14

5.2.2 Room sealed installation ......................................................................................................................... 14

5.3 Flue gas connection and ﬂue ............................................................................................................... 15

5.4 Condensate drainage ............................................................................................................................ 15

5.4.1 Design variants ....................................................................................................................................... 16

5.5 Gas connection ..................................................................................................................................... 17

5.6 Hydraulic connection ............................................................................................................................ 18

5.6.1 Customer-side requirements ................................................................................................................... 18

5.6.2 Hydraulic interconnection ........................................................................................................................ 18

6. Commissioning

6.1 Safety information ................................................................................................................................ 20

6.2 Filling with water ................................................................................................................................... 20

6.3 Water quality .......................................................................................................................................... 21

6.3.1 Heating Water ......................................................................................................................................... 21

6.4 Bleeding the air from the gas line ....................................................................................................... 22

6.5 Switching on the system ...................................................................................................................... 22

6.6 Gas inlet pressure ................................................................................................................................. 22

6.7 Setting the gas ﬂow rate CO

) and measurement of NOx/CO content in the ﬂue gas (ﬂue gas

measurement) ........................................................................................................................................ 23

6.8 Changing over to a different gas type ................................................................................................. 24

6.9 Handover to the user ............................................................................................................................ 24

6.10 Record - Activation of screed function ............................................................................................... 25

4 210 266 / 03

Table of contents

7. Maintenance

7.1 Safety information ................................................................................................................................ 27

7.2 Bleeding ................................................................................................................................................ 27

7.3 Water reﬁlling ....................................................................................................................................... 27

7.4 Information for combustion controller/chimney sweep regarding emission monitor key ............. 28

7.5 Cleaning ................................................................................................................................................. 29

7.5.1 Cleaning the burner cylinder .................................................................................................................. 29

7.5.2 Cleaning the exterior of the combustion chamber and burner cylinder .................................................. 30

7.5.3 Cleaning/adjusting the ignition and ionisation device .............................................................................. 31

7.6 Setting the gas ﬂow rate CO

) and measurement of NOx/CO content in the ﬂue gas ............... 32

7.7 Servicing the neutralisation installation (if ﬁtted) .............................................................................. 33

7.8 Clean siphon .......................................................................................................................................... 34

8. Overview of settings

8.1 Table of parameters .............................................................................................................................. 35

8.2 Automatic ﬁring device UltraGas

(70,90) ........................................................................................... 42

8.3 Fault Reporting overview TopTronic

T ................................................................................................ 47

8.4 Automatic ﬁring device (Warning, Blocking, Lock-out) ..................................................................... 49

4 210 266 / 03 4 Safety instructions

1. Safety instructions

The system shall not be put into operation until all relevant standards and

safety regulations are met.

For a test run, the following minimum conditions must be satisﬁed:

- Safety valve installed (closed system)

- Controls operative (connected to power supply)

- Sensor for safety temperature limiter is connected

(= boiler temperature sensor)

- System ﬁlled with water

- Siphon ﬁlled with water

- Expansion tank connected

- Flue gas adapter pipe with ﬂue gas pipe connected to ﬂue .

- Burner is preset (see point 6.7).

1.1 Key to symbols used

Tools:

Shows the tools required for the following work.

Instruction:

Prompts you to carry out an action.

Result:

Shows the expected reaction to your action.

Note:

Provides important information

Safety information:

Indicates an immediate hazard to persons

Safety information:

Warning of dangerous electrical voltage

Warning information

Indicates danger to machines and Installations

Provides important information.

Reference to standards and regulations.

4 210 266 / 03

Important notes

2. Important notes

2.1 Acceptance of delivery

A visual control of the heating boiler should be conducted upon delivery.

In the event of damage, the necessary steps should be followed as speciﬁed

in the delivery contract.

The costs for correcting the damage shall be taken over by the individual risk

bearer.

2.2 Scope of guarantee

The guarantee does not cover defects caused by:

- non-observance of these instructions

- non-observance of the operating instructions

- incorrect Installation

- unauthorised alterations

- improper use

- contaminated operating media (gas, water, combustion air)

- unsuitable chemical additives to the heating water

- damage due to the exercise of force

- corrosion through halogen compounds

- corrosion through nonconforming water quality

2.3 Instruction manuals

A summary of all the instruction manuals relevant to this system can be found

in the Hoval System User Guide!

In exceptional cases the instructions are kept with the respective compo-

nents!

Additional sources of information:

- Hoval catalogue

- Standards and regulations

2.4 Regulations, ofﬁcial permits

When installing and operating the system, the standards and regulations

speciﬁed in point 2.4.1 to 2.4.3 must be complied with at all times.

4 210 266 / 03 6 Important notes

2.4.1 Germany

DIN EN 12831 Heating systems in buildings - Methods for calculating the design heat load

DIN EN 13384 Flue gas systems - Heat and ﬂow calculation methods

DIN EN 12828 Heating systems in buildings - Planning of hot water heating systems.

DIN 4755 Oil ﬁred combustion systems.

Construction, design, safety requirements.

DIN 4756 Gas ﬁred combustion systems. Construction, design, safety requirements, design and execu-

tion (for gas burner operation).

DIN 18160 Domestic chimneys, requirements, design and construction.

TRD 702 Steam boilers with group II hot water generators.

TRD 721 Safety equipment against excessive pressure / safety valves for group II steam boilers.

VDI 2035 Prevention of damage through corrosion and scale formation in hot water heating systems.

DIN 57 116 / VDI 0116 Electrical equipment in combustion systems

(VDE regulation).

See enclosure N-430 020 for further standards applicable in Germany.

2.4.2 Austria

OENORM 12831 Heating systems in buildings - Methods for calculating the design heat load

OENORM 13384 Flue gas systems - Heat and ﬂow calculation methods

OENORM 12828 Heating systems in buildings - Planning of hot water heating systems.

ÖNorm B 8130 Open water heating systems; safety equipment.

ÖNorm B 8131 Closed water heating systems; requirements to safety, construction and testing.

ÖNorm B 8133 Hot water supply systems; safety requirements.

ÖNorm B 8136 Heating systems, space and other building requirements.

ÖNorm M 7515 Dimensioning of chimneys; deﬁnitions and calculation procedure.

ÖNorm H 5171 Heating systems - construction requirements for buildings.

ÖVGW TR-Gas

2.4.3 Switzerland

SN EN 12831 Heating systems in buildings - Methods for calculating the design heat load

SN EN 13384 Flue gas systems - Heat and ﬂow calculation methods

SN EN 12828 Heating systems in buildings - Planning of hot water heating systems.

VKF - Association of Cantonal Fire Insurances.

Fire service regulations.

SVGW Switzerland. Association of the gas and water trade.

SNV 27 10 20 Ventilation requirements for the boiler Installation room.

SWKI BT102-01 Quality of water in installations of building technology

Technical tank regulations TTV 1990.

and further standards and regulations issued by CEN, CEN ELEC, DIN, VDE, DVGW, TRD and by the

legislator. Regulations from the local building authority, insurance companies and chimney sweeps must

also be complied with. When using gas as fuel, the regulations of the responsible gas board must also

be observed. An ofﬁcial permit may be required.

4 210 266 / 03

Assembly

4. Using a winch (4, ﬁg. 3) raise the front of the boi-

ler and remove the front crossbeam (5).

6 Fig. 4

5. Push the lateral bars (4, ﬁg. 4) out on the front

and lower the boiler back onto the ﬂoor.

7 8

Fig. 5

6. Remove screws (3, ﬁg. 2) at the back. Lift rear

wall and cover and take off the rear wall towards

the bottom. Using a winch (7, ﬁg. 5) raise the

boiler at the back in the centre (8) and remove

crossbeam and side beams. Lower the boiler

back onto the ﬂoor.

7. Afﬁx the enclosed type sticker visibly on the boi-

ler.

3. Assembly

3.1 Placement

Hoval recommends the Installation of the heat-

ing boiler on a foundation plate.

Fig. 1 1

1. Remove wooden crate (1, ﬁg. 1)

Caution: sharp edges (Figure 2)!

Fig. 2 3 2

2. Remove transportation straps (2, ﬁg. 2)

3. Remove front screws (3)

Fig. 3 4 5

4 210 266 / 03 8 Technical data

4. Technical data

4.1 Description of the boiler

The Hoval UltraGas

is a low emission, energy-saving

condensing gas boiler comprising the Ultraclean

burner system, a gas ﬁred premix burner with com-

bustion air fan. The Hoval UltraGas

has a vertically

disposed combustion chamber of stainless steel as

a primary heating surface and a secondary heat-

ing surface of a corrosion resistant aluminium alloy.

The secondary heating surface is designed so that

part of the water vapour contained in the ﬂue gas is

condensed and the vaporisation heat it contains is

utilised for the heating circuit. The gas burner is in the

form of a break draught burner, which can easily be

swung up for maintenance purposes. The UltraGas

is designed to operate with natural and liquid gas. The

ﬁgure below shows the design principle.

Concentric ﬂue gas connection

Connection hose for room sealed

operation

Feed tube on left and/or right side

Internal ﬂue gas conduit

High temperature return on

left and/or right side

Low temperature return

on left and/or right side

Gas safety and

control devices

Combustion air fan

Electrode for ignition and

ﬂame monitoring

TopTronic

T controller

aluFer

heat exchanger

Condensate collection tray

Horizional ﬂue gas pipe optional

4 210 266 / 03

Technical data

4.2 Technical data

UltraGas

(70,90)

Type (70) (90)

• Nominal output 80/60°C with natural gas

kW 12,2 - 63,3 14,4 - 83,3

• Nominal output 40/30°C with natural gas

kW 13,6 - 69,9 16,1 - 91,5

• Nominal output 80/60°C with liquid gas

kW 15,4 - 63,3 17,4 - 83,3

• Nominal output 40/30°C with liquid gas

kW 17,1 - 69,9 19,3 - 91,5

• Nominal load with natural gas

kW 12,5 - 65,5 14,7 - 86,0

• Nominal load with liquid gas

kW 16,0 - 65,5 18,0 - 86,0

• Working pressure heating max./min. bar 4,0 / 1,0 4,0 / 1,0

• Working temperature max.. °C 85 85

• Boiler water capacity l 157 149

• Min. water circulation l/h 0 0

• Boiler Weight (without water) kg 249 268

• Boiler efﬁciency at partial load 30% (according to EN 303)

(related to net / gross caloriﬁc value)

% 107,1 / 96,5 107,2 / 96,6

• Standard efﬁciency (according to DIN 4702 part 8) 40/30°C % 109,6 / 98,7 109,6 / 98,7

(net caloriﬁc value / gross caloriﬁc value) 75/60°C % 107,1 / 96,5 107,1 / 96,5

• Heat loss rate at 70°C Watt 290 290

• Standard emission rate Nitrogen oxides mg/kWh 32 39

Carbon monoxide mg/kWh 3 3

• Co

tent of CO

in the exhaust gas max./min. power % 9,0 / 8,8 9,0 / 8,8

• Dimensions See table of dimensions

• Connections Flow /Return Zoll R 1 ½" R 1 ½"

Gas Zoll R ¾" R ¾"

Flue gas / combustion

air Ø

mm C100/150 C100/150

• Gas ﬂow pressure min./ max.

Natural gas E/LL mbar 18-50 18-50

Liquid gas mbar 37-50 37-50

• Gas connection value at 0°C / 1013 mbar:

Natural gas E - (Wo = 15,0 kWh/m

) Hu = 9,97 kWh/m

/h 6,6 8,6

Natural gas LL- (Wo = 12,4 kWh/m

) Hu = 8,57 kWh/m

/h 7,6 10,0

Propangas (Hu = 25,9 kWh/m

) m

/h 2,5 3,3

• Operation voltage V/Hz 230/50 230/50

• Control voltage V/Hz 24/50 24/50

• Min./Max. electrical power consumption Watt 27 / 93 28 / 138

• Standby Watt 12 12

• IP rating (integral protection) IP 20 20

• Acoustic capacity

- Heating noise (EN 15036 part 1) (room air-dependent) dB(A) 64 67

- Exhaust noise is radiated from the mouth

(DIN 45635 part 47) (room air-dependent/room air-independent)

dB(A) 55 59

• Acoustic pressure level (depending on installation)

dB(A) 57 59

• Condensate quantity (Natural gas ) at 40/30°C l/h 6,2 8,1

• pH value of the condensate ca. 4,2 ca. 4,2

• Value for ﬂue calculation

Temperature class T120 T120

Flue gas mass ﬂow kg/h 109,0 143,0

Flue gas temperature at nominal output and operation 80/60°C °C 63 65

Flue gas temperature at nominal output and operation 40/30°C °C 43 43

Mass ﬂow combustion air Nm

/h 81 106

Feed pressure for combustion air/ ﬂue gas system Pa 130 130

Maximal Draft / negative pressure ﬂue gas outlet Pa - 50 - 50

Data reladet to H

. The boiler series is tested for EE/H-settings. With a factory setting of the Wobbe coefﬁcient of 15.0 kWH/m

operation at a

Wobbe oefﬁcient of 12,0 up to 15,7 kWh/m

is possible without new settings.

See also notes at „Engineering“.

Data reladet to H

4 210 266 / 03 10 Technical data

4.3 Dimensions / Space requirements

UltraGas

(70,90) with connection set AS40-S/NT/ HT and heating armature groupe HA40

(All dimensions in mm)

Type UltraGas

(70) (90)

1. Flow Heating R1½" R1½"

2. Low temperature-return R1½" R1½"

2a. High temperature-return R1½" R1½"

3. Electrical connection left or right R ¾" R ¾"

4. Gas connection left or right C100/150 C100/150

4a. Flue gas connection rear (option) E100/150 E 100

5. Control panel

6. Condensate drain (left or right)

incl. siphon DN25 and 2 m PVC

continuous-ﬂow tube inner Ø 19x4

7. Electrical connection left or right

8. Draining

9. Connection set (option)

10. Heating armature group or

loading group (option)

4 210 266 / 03

Technical data

4.4 Space requirements

UltraGas

(70,90)

(All dimensions in mm)

Boiler door incl. burner swivels upwards and to the left or to the

front.

A = minimal 150 mm *

Burner service position front - boiler cleaning from the right

A = optimal 300 mm *

Burner service position left - boiler cleaning from the front

* without heating armature group

500 mm with heating armature group

4 210 266 / 03 12 Technical data

4.5 Boiler-Flow resistance

/h = Through put ﬂow rate

mbar = Flow resistance

UltraGas

(70,90)

100

12345678

[mbar]

[m3/h]

4 210 266 / 03

Technical data

4.6 Brief description of the automatic ﬁring device

The automatic ﬁring device BIC960 of the UltraGas

only operates in conjunction with the heating control-

ler

TopTronic

T/UG. For this reason, the automatic ﬁring device only needs to take care of the last re-

maining functions to ensure the correct operation of a modulating gas boiler.

The automatic ﬁring device comprises the following functions:

- PWM fan control (230V AC)

- Modulating operation

- Common electrode for ignition and ﬂame monitoring (ionisation)

- LPG valve and boiler room fan controllable

- Inputs for ﬂow sensor 1

ﬂow sensor 2

ﬂue gas sensor

water pressure sensor

safety temperature limiter (not used)

air pressure switch (not used)

gas pressure switch

- Status outputs “fault” and “ﬂame signal”

- Allows connection of additional (external) ignition device

- RS 485 connection to TopTronic

T/UG

- RS 232 connection to PC

- Start attempts: maximum 4

- Safety period: 5 sec

- Pre-ignition period: 5 sec

- Pre-purging period: 50 sec

- Follow-on time pump (230V AC): 5 min after heat demand

Fuses:

The BIC 960 is ﬁtted with 3 fuses: 2AT Mains

4AT Pump

4AT Burner fan

Blowing of one of the two 4AT fuses securing the pump or the burner fan, respectively, will prevent the

affected device from starting.

A failure of the mains fuse of the automatic ﬁring device is displayed on the TopTronic

T/UG by the failure

message „DATABUS ERROR 70-6“. The failure appears when there is no communication between auto-

matic ﬁring device and TopTronic

T/UG .

4 210 266 / 03 14 Installation

5. Installation

5.1 Safety information

Caution!

Sharp edges pose a cutting hazard.

Handle the cladding parts with care and avoid contact with sharp edges.

5.2 Boiler room requirements

The boiler room must satisfy the applicable local building regulations.

The boiler room ventilation must satisfy the applicable local regulations in this regard.

Boilers may not be installed in rooms containing halogen compounds which can be carried

into the combustion air (e.g. wash rooms, drying rooms, DIY rooms, hair dresser rooms).

Halogen compounds can originate, for example, from cleaning and degreasing agents,

solvents, glue, and bleaching lyes.

Ensure that the required combustion air can ﬂow unhindered at all times.

This is important for the correct operation of all the boilers installed therein and to protect the

users from an oxygen depleted atmosphere.

An adequate fresh air supply meeting the local regulations must be provided.

5.2.1 Room air dependent installation

The applicable regulations do not normally provide any speciﬁc data on the size of air intakes.

They only require the pressure in the boiler room not to be below 3 N/m

This means that for a rated thermal output of up to 50 kW an air intake with a cross section of

at least 300 cm

must be available.

For rectangular apertures the aspect ratio should not exceed 1.5:1. If a grid is ﬁtted on the air

intake, a suitable allowance must be made to obtain an air intake cross section of 300 cm

If the combustion air is aspirated from within

the boiler room, it is possible to remove the

air intake hose (1) to reduce suction noise.

5.2.2 Room sealed installation

Conﬁguration based on a concentric ﬂue system:

The suction air is supplied through a double-wall ﬂue

system.

Ensure the boiler room is sufﬁciently ventilated.

4 210 266 / 03

Installation

Conﬁguration using a separating piece (optional):

•

The following must be observed when

laying out the intake pipe:

• If the intake opening is installed on the

house facade near to a noise-sensitive

area (e.g. bedroom windows, garden

seating area, etc.) we recommend in-

stalling a noise damper in the direct

fresh air suction line.

• The intake opening must be easily ac-

cessible.

• No chemicals or poisonous substances

may be stored close to the intake open-

ing

• The intake opening may not be ins-

talled beside fume extraction outlets or

other venting outlets.

• Ensure that the intake aperture is free

from any obstructions at all times (lea-

ves, snow, ...)

•

A safety grid must be installed on the

suction opening on the outside wall.

5.3 Flue gas connection and ﬂue

Due to the low ﬂue gas temperatures, condensate

forms within the ﬂue. For this reason, Hoval gas

heating boilers can not be connected to convention-

al house chimneys.

The ﬂue gas extraction system must

comply with the following directives:

• DVGW (TRGI)

• ÖVGW

• SVGW/VKF

Pursuant to the abovementioned regula-

tions, a ﬂue gas temperature limiter must

be installed in the boiler.

The ﬂue gas system must meet the follo-

wing requirements:

• Gastight

• Watertight

• Acid-proof

•

Approved for ﬂue gas temperatures of

up to 120ºC (T 120)

• Approved for overpressure

•

Unhindered back ﬂow of condensate

into the boiler can only be ensured if:

• The gradient of the horizontal connec-

tion elements is at least 50 mm/m.

• Only one heat generator may be con-

nected to the same chimney.

• If two heat generators are to be con-

nected to the same chimney, the rele-

vant regulations must be complied with.

•

Cross sections and maximum lengths

are calculated on the basis of graphs

or tables.

•

The tables can be obtained from the

chimney or ﬂue system manufacturer.

• The calculation values can be obtained

from the table under point 4.2.

•

The ﬂue gas conduit cross sections

and lengths are calculated following

the technical data for the boiler.

• The concentric supply air/exhaust sys-

tem of the boiler can also be conducted

horizontally backwards. The Hoval re-

modelling set allows a remodelling on

site

5.4 Condensate drainage

The condensate drainage pipes on the

boiler must be made of corrosion resis-

tant material.

The following materials are suitable for

condensate drainage:

PVC, PE, PP, ABS

The local regulations regarding conden-

sate drainage must be observed.

4 210 266 / 03 16 Installation

5.4.1 Design variants

Before commissioning, the neutralisation

box (if ﬁtted) must be ﬁlled with neutrali-

sation granulate (ﬁgure, chapter 6.4).

Before putting into service, the si-

phon and the neutralisation box must

be ﬁlled with water.

The water can be ﬁlled through the

cleaning opening into the neutralisa-

tion box and the siphon.

Possibility 1

• Stand version with siphon

• With neutralisation, condensate discharge into

lower drain line.

• Drain optionally on the left or right side.

Possibility 2

• Design with neutralisation box

• For condensate discharge in lower drain line, incl.

condensate neutralisation.

Possibility 3

• Siphon and condensate delivery pump

• Without neutralisation, condensate discharge into

higher drain line.

The condensate delivery pump must be

installed in accordance with the enclosed

instructions.

1 2

Possibility 4

• Neutralisation box and condensate delivery pump

• With condensate neutralisation - condensate dis-

charge into higher drain line.

The condensate delivery pump must be

installed in accordance with the enclosed

instructions.

3 21 4

4 210 266 / 03

Installation

5.5 Gas connection

Hazard!

Explosion hazard due to leaky gas connection.

Check the gas connection for gas tightness after completing the boiler installation.

The gas connection can be located on the left or right hand side of the boiler.

The gas line is supplied loose with the boiler. The connection diameter is ¾“.

Check for gas tightness after installation!

4 210 266 / 03 18 Installation

High temperature return (e.g. venting group or caloriﬁer)

Low temperature return (e.g. underﬂoor heating)

AF Outside sensor 1

VF1 Flow sensor 1

SF Caloriﬁer sensor

B1 Flow temperature monitor

(optional)

MK1 Pump mixing circuit 1

SLP Caloriﬁer - loading pump

YK1 Actuator mixer 1

5.6 Hydraulic connection

The boiler comprises the following safety equipment, in accordance with EN 12828:2003:

- Minimum pressure limiter DBmin

- Safety maximum pressure limiter DBmax

- Hydraulic pressure monitor DBmax + 50%

- Thermostat

- Temperature monitor TBmax + 20%

- Safety temperature limiter

To achieve an optimal efﬁciency, ensure that the return pipe is properly con-

nected.

5.6.1 Customer-side requirements

A pressure expansion tank adapted to the heating system, water volume

and static height.

5.6.2 Hydraulic interconnection

When combining a caloriﬁer with ﬂoor heating, a mixer needs to be installed.

A minimum amount of circulating water is not required.

UltraGas

(70,90) with caloriﬁer

and direct heating circuit

Regarding suitable hydraulic connections, please observe the notes in

the planning documentation of the relevant Hoval sales company!

Example

Make sure to

close off un-

used connec-

tors tightly

RS-T

TopTronic T

Dies ist ein

unerlaubter

Weg!

Gehen Sie

einen Schritt

zurück oder

löschen Sie

dieses Shape!

Sie haben die

Möglichkeit ein

neues Shape

zu nehmen!!!

hovhovalhoval

hovalhovalhov

alhovalhovalho

valhovalhovalh

ovalhovalhoval

hovalhovalhov

alhovalhovalho

valhovalhovalh

ovalhovalhoval

hovalhovalhov

alhovalhovalho

valh

SLP

Dies ist ein

unerlaubter Weg!

Gehen Sie einen

Schritt zurück oder

löschen Sie dieses

Shape!

Sie haben die

Möglichkeit ein

neues Shape zu

nehmen!!!

hovhovalh

hovalhova

alhovalho

UltraGas

(35-90)

MK1

YK1

B1VF1

4 210 266 / 03

Installation

5.7 Electrical connection

- The electrical connection must be car-

ried out by an approved electrician.

- The connection diagram is located wi-

thin the boiler control box.

- The electrical circuit diagram is sup-

plied separately.

The following applies to Austria and Germany:

A connection diagram is provided with the boiler

control unit.

The power supply must be ﬁtted with an omnipolar

isolation switch with a contact gap of at least 3 mm.

The following applies to Switzerland:

The electrical connections must comply with the

system-speciﬁc electrical circuit diagram!

Safety measures for EMC installation:

Control units with their own mains connection re-

quire the mains, sensor and bus cables to be routed

separately.

Cable trunking with dividing parti-

tions should be used.

The mains connection for the heating system (boi-

ler-control panel-control unit) must be conﬁgured in

form of an independent electric circuit.

No other electrical loads (light, power outlets, ...)

may be connected to that electric circuit.

The external sensor may not be installed close to

transmitters or receivers (garage door openers,

amateur radio aerials, radio alarm systems,...).

Recommended conductor cross sections:

Conductor type Cross section Length

Mains voltage cables min. 1,0 mm² unlimited m

Extra-low voltage cables

(sensors)

min. 0,5 mm² max. 50 m

Data bus cables (screened) 2 x 0,6 mm² max. 100 m

Procedure to remove the front covering panel

1. Remove front cover (1, ﬁg. 6), after ﬁrst releasing

the lateral locking bolt (1a) (turn approx. ¼ turn

to the left and pull out as far as the stop). Lift

the front cover (1) straight upwards and remove

towards the front.

2. Remove lower front cover (2), after ﬁrst releasing

the lateral locking bolt (2a) (turn approx. ¼ turn

to the left and pull out as far as the stop). Slight-

ly raise the lower front cover (2) and remove to-

wards the front.

3. Remove the locking screw (3a) on the right.

4. Lift the switch control box (3) and fold it out.

5. Cable entry refer to the Technical Datasheet (Di-

mensions, point 4.3, item 7)

The electrical connection is to be made in accordance

with the diagram supplied.

Fig. 6

4 210 266 / 03 20 Commissioning

6. Commissioning

After ﬁlling the system with water, bleed any air and check for water leaks.

Before putting the boiler into operation, the siphon and neutralisation tank

needs to be ﬁlled with TopTronic

T water.

When starting up the system for the ﬁrst time, the correct operation of all the

safety and control devices must be veriﬁed.

The operation and maintenance of the system must be explained to the user

in detail.

The combustion air needs to be ﬁltered in very dusty environments.

The gas ﬂow pressure must be checked and the CO

value set correctly.

6.1 Safety information

Caution!

Sharp edges pose a cutting hazard.

Handle the cladding parts with care and avoid contact with sharp edges.

Caution!

Danger of injury for unqualiﬁed personnel.

Maintenance and cleaning work may only be performed by trained personnel

or by the Hoval Customer Service.

Caution!

Danger of damaging the system by ﬁlling it with incorrect liquids.

Water ﬁlled into the system must have drinking quality.

6.2 Filling with water

Filling of the heating system may only be carried out by qualiﬁed personnel.

The European Standard EN 14868 and the Directive VDI 2035 must be

observed (see point 6.3).

Open the isolating valves in the ﬂow and return lines.

Connect the water hose to the ﬁlling tap.

Fill the heating system slowly.

Monitor the water level on the manometer.

Use only chemical additives with suppliers’ conﬁrmation of their safe usage.

Anti-freeze additive may be ﬁlled up to a maximum of 40% and to a minimum

according to the manufacturer’s information.

The anti-freeze or anti-corrosion agent concentration must be checked at

least once per year.

The identical product must be used when replenishing the anti-freeze or anti-

corrosion agents.

When transferring to operation without anti-freeze or anti-corrosion agents,

the system is to be thoroughly ﬂushed through several times before reﬁlling

with water.

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Hoval UltraGas 90 Installation Instructions Manual

Brand: Hoval

Model: UltraGas 90

Type: Installation Instructions Manual

This manual is also suitable for

UltraGas 70

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Hoval UltraGas 90 Installation Instructions Manual

This manual is also suitable for

Hoval UltraGas 90 Installation Instructions Manual

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