Viessmann VITORONDENS 200-T Betriebsanleitung

Service instructions

for contractors

VIESMANN

Vitorondens 200-T

Type BR2A, 20.2 to 53.7 kW

Oil Unit condensing boiler

VITORONDENS 200-T

5624309 GB 7/2019 Please keep safe.

Please follow these safety instruc-

tions closely to prevent accidents

and material losses.

Safety instructions explained

Danger

This symbol warns against the risk

of injury.

!Please note

This symbol warns against the risk

of material losses and environmen-

tal pollution.

Note

Details identified by the word "Note"

contain additional information.

Target group

These instructions are exclusively inten-

ded for qualified contractors.

■Work on gas installations may only be

carried out by a registered gas fitter.

■Work on electrical equipment may only

be carried out by a qualified electrician.

■The system must be commissioned by

the system installer or a qualified per-

son authorised by the installer.

Regulations to be observed

■National installation regulations

■Statutory regulations for the prevention

of accidents

■Statutory regulations for environmental

protection

■Codes of practice of the relevant trade

associations

■Relevant country-specific safety regu-

lations

Safety instructions for working on the system

Working on the system

■Where gas is used as the fuel, close

the main gas shut-off valve and safe-

guard it against unintentional reopen-

ing.

■Isolate the system from the power sup-

ply, e.g. by removing the separate fuse

or by means of a mains isolator, and

check that it is no longer live.

■Safeguard the system against recon-

nection.

■Wear suitable personal protective

equipment when carrying out any work.

Safety instructions

5624309

Danger

Hot surfaces and fluids can lead to

burns or scalding.

■Before maintenance and service

work, switch OFF the appliance

and let it cool down.

■Never touch hot surfaces on the

boiler, burner, flue system or pipe-

work.

!Please note

Electronic assemblies can be dam-

aged by electrostatic discharge.

Prior to commencing work, touch

earthed objects such as heating or

water pipes to discharge static

loads.

Repair work

!Please note

Repairing components that fulfil a

safety function can compromise the

safe operation of the system.

Replace faulty components only

with genuine Viessmann spare

parts.

Auxiliary components, spare and

wearing parts

!Please note

Spare and wearing parts that have

not been tested together with the

system can compromise its func-

tion. Installing non-authorised com-

ponents and making non-approved

modifications or conversions can

compromise safety and may invalid-

ate our warranty.

For replacements, use only original

spare parts supplied or approved by

Viessmann.

Safety instructions

Safety instructions (cont.)

5624309

Safety instructions for operating the system

If you smell gas

Danger

Escaping gas can lead to explo-

sions which may result in serious

injury.

■Do not smoke. Prevent naked

flames and sparks. Never switch

lights or electrical appliances on

or off.

■Close the gas shut-off valve.

■Open windows and doors.

■Evacuate any people from the

danger zone.

■Notify your gas or electricity sup-

ply utility from outside the building.

■Have the power supply to the

building shut off from a safe place

(outside the building).

If you smell flue gas

Danger

Flue gas can lead to life threatening

poisoning.

■Shut down the heating system.

■Ventilate the installation site.

■Close doors to living spaces to

prevent flue gases from spread-

ing.

What to do if water escapes from the

appliance

Danger

If water escapes from the appliance

there is a risk of electrocution.

Switch OFF the heating system at

the external isolator (e.g. fuse box,

domestic distribution board).

Danger

If water escapes from the appliance

there is a risk of scalding.

Never touch hot heating water.

Condensate

Danger

Contact with condensate can be

harmful to health.

Never let condensate touch your

skin or eyes and do not swallow it.

Flue systems and combustion air

Ensure that flue systems are clear and

cannot be sealed, for instance due to

accumulation of condensate or other

external causes.

Ensure an adequate supply of combus-

tion air.

Inform system users that subsequent

modifications to the building characteris-

tics are not permissible (e.g. cable/pipe-

work routing, cladding or partitions).

Danger

Leaking or blocked flue systems, or

an inadequate supply of combus-

tion air can cause life threatening

poisoning from carbon monoxide in

the flue gas.

Ensure the flue system is in good

working order. Vents for supplying

combustion air must be non-seala-

ble.

Extractors

Operating appliances that exhaust air to

the outside (extractor hoods, extractors,

air conditioning units, etc.) can create

negative pressure. If the boiler is oper-

ated at the same time, this can lead to a

reverse flow of flue gas.

Safety instructions

Safety instructions (cont.)

5624309

Danger

The simultaneous operation of the

boiler and appliances that exhausts

air to the outside can result in life

threatening poisoning due to a

reverse flow of flue gas.

Fit an interlock circuit or take suita-

ble steps to ensure an adequate

supply of combustion air.

Safety instructions

Safety instructions (cont.)

5624309

1. Information Symbols ................................................................................................. 7

Intended use .......................................................................................... 7

Spare parts lists ..................................................................................... 8

2. Commissioning, inspec-

tion, maintenance

Steps - commissioning, inspection and maintenance ............................ 9

3. Commissioning/service

reports

................................................................................................................ 19

4. Specification ................................................................................................................ 20

5. Shutdown and disposal Final decommissioning and disposal ..................................................... 21

6. Certificates Declaration of conformity ....................................................................... 22

Manufacturer's certificate according to the 1st BImSchV [Germany] .... 22

7. Keyword index ................................................................................................................ 23

Index

5624309

Symbol Meaning

Reference to other document containing

further information

Step in a diagram:

The numbers correspond to the order in

which the steps are carried out.

Warning of material losses and environ-

mental pollution

Live electrical area

Pay particular attention.

■Component must audibly click into place.

■Acoustic signal

■Fit new component.

■In conjunction with a tool: Clean the sur-

face.

Dispose of component correctly.

Dispose of component at a suitable collec-

tion point. Do not dispose of component in

domestic waste.

The steps in connection with commissioning, inspec-

tion and maintenance are found in the "Commission-

ing, inspection and maintenance" section and identified

as follows:

Symbol Meaning

Steps required during commissioning

Not required during commissioning

Steps required during inspection

Not required during inspection

Steps required during maintenance

Not required during maintenance

Intended use

The appliance is intended solely for installation and

operation in sealed unvented heating systems that

comply with EN 12828, with due attention paid to the

associated installation, service and operating instruc-

tions. It is only designed for heating up heating water

that is of potable water quality.

Intended use presupposes that a fixed installation in

conjunction with permissible, system-specific compo-

nents has been carried out.

Commercial or industrial usage for a purpose other

than heating the building or DHW shall be deemed

inappropriate.

Any usage beyond this must be approved by the man-

ufacturer in each individual case.

Incorrect usage or operation of the appliance (e.g. the

appliance being opened by the system user) is prohibi-

ted and will result in an exclusion of liability. Incorrect

usage also occurs if the components in the heating

system are modified from their intended use (e.g. if the

flue gas and ventilation air paths are sealed).

Information

Symbols

5624309

Information

Information about spare parts can be found on the

Viessmann spare parts app.

Information

Spare parts lists

5624309

Information

Commissioning steps

Inspection steps

Maintenance steps Page

•1. Filling the heating system................................................................................................. 10

•2. Venting the boiler at the safety equipment block (accessories).................................... 11

•3. Venting the heating system

• • 4. Shutting down the system

• • 5. Draining the heating system (if required)........................................................................ 12

• • 6. Opening the boiler door..................................................................................................... 12

• • 7. Cleaning the heating surfaces.......................................................................................... 13

• • 8. Checking the gaskets and thermal insulation sections................................................. 14

•9. Fitting the boiler door........................................................................................................ 14

• • 10. Separating the neutralising system or active charcoal filter (if installed) from the

boiler and connecting the drain hose.............................................................................. 15

• • 11. Checking the neutralising system (if installed)............................................................... 15

• • 12. Checking the active charcoal filter (if installed).............................................................. 15

• • 13. Checking the connection on the flue gas side for leaks................................................ 16

• • 14. Cleaning the condensate drain pipe and trap and reconnecting to the drainage

system................................................................................................................................. 16

•15. Filling the trap and neutralising system (accessories) with water................................ 16

••• 16. Checking connections on the heating water and DHW sides and the sensor well for

leaks

••• 17. Checking the function of the safety equipment

• • 18. Checking the expansion vessel and system pressure................................................... 17

••• 19. Checking the thermal insulation for firm seating

• • 20. Checking the mixer for ease of operation and leaks...................................................... 17

••• 21. Checking the ventilation air connection to the burner (if installed).............................. 18

••• 22. Adjusting the burner.......................................................................................................... 18

•23. Instructing the system user.............................................................................................. 18

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance

5624309

Fill water

According to EN 1717 with DIN 1988-100, as a heat

transfer medium for DHW heating, the heating water

must meet fluid category ≤ 3. This requirement is met if

water of potable quality is used as heating water. For

example, if additives are used, the additive manufac-

turer must specify which category the treated heating

water comes under.

!Please note

Unsuitable fill water increases the level of

deposits and corrosion and may lead to appli-

ance damage.

■Flush the heating system thoroughly before

filling.

■Only use fill water of potable water quality.

■Special antifreeze suitable for heating systems

can be added to the fill water. The antifreeze

manufacturer must verify its suitability.

■Fill and top-up water with a water hardness in

excess of the following values must be soft-

ened, e.g. with a small softening system for

heating water.

Total permissible hardness of the fill and top-up water

Total heating output Specific system volume

kW < 20 l/kW ≥ 20 l/kW to < 50 l/kW ≥ 50 l/kW

≤ 50 ≤ 3.0 mol/m3 (16.8 °dH) ≤ 2.0 mol/m3 (11.2 °dH) < 0.02 mol/m3 (0.11 °dH)

> 50 to ≤ 200 ≤ 2.0 mol/m3 (11.2 °dH) ≤ 1.5 mol/m3 (8.4 °dH) < 0.02 mol/m3 (0.11 °dH)

> 200 to ≤ 600 ≤ 1.5 mol/m3 (8.4 °dH) ≤ 0.02 mol/m3 (0.11 °dH) < 0.02 mol/m3 (0.11 °dH)

> 600 < 0.02 mol/m3 (0.11 °dH) < 0.02 mol/m3 (0.11 °dH) < 0.02 mol/m3 (0.11 °dH)

With on-site boiler fill valve in the heating water return

A B

Fig. 1

ABypass valve "OPEN"

BBypass valve "CLOSED"

1. Check the pre-charge pressure of the expansion

vessel.

2. Close the bypass valve on the boiler flow/return

distributor.

3. If using a top-mounted Divicon heating circuit dis-

tributor (accessories):

Set the mixer lever to "OPEN" (red).

4. Fill the system via the boiler fill valve in the heating

water return, until it is fully vented.

5. Open the bypass valve on the boiler flow/return

distributor again.

Commissioning, inspection, maintenance

Filling the heating system

5624309

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