Viessmann Vitosol-T Instrucciones de funcionamiento

Service instructions

for contractors

VIESMANN

Vitosol-T

For applicability, see the last page

VITOSOL-T

5458 009 GB 3/2010 Please keep safe.

Please follow these safety instructions closely to prevent accidents and mate-

rial losses.

Safety instructions explained

!Please note

This symbol warns against the

risk of material losses and envi-

ronmental pollution.

Note

Details identified by the word "Note" con-

tain additional information.

Target group

These instructions are exclusively

designed for qualified personnel.

■ Work on electrical equipment must

only be carried out by a qualified elec-

trician.

■ The system must be commissioned by

the system installer or a qualified per-

son authorised by the installer.

Regulations

Observe the following when working on

this system

■ all legal instructions regarding the pre-

vention of accidents,

■ all legal instructions regarding envi-

ronmental protection,

■ the Code of Practice of relevant trade

associations.

■ all current safety regulations as

defined by DIN, EN, DVGW, VDE and

all locally applicable standards

Working on the system

■ Isolate the system from the power sup-

ply and check that it is no longer 'live',

e.g. by removing a separate fuse or by

means of a main isolator.

■ Safeguard the system against unau-

thorised reconnection.

!Please note

Electronic modules can be dam-

aged by electrostatic dis-

charges.

Touch earthed objects, such as

heating or water pipes, to dis-

charge static loads.

Repair work

!Please note

Repairing components that fulfil a

safety function can compromise

the safe operation of your heating

system.

Replace faulty components only

with original Viessmann spare

parts.

Safety instructions

5458 009 GB

Ancillary components, spare and

wearing parts

!Please note

Spare and wearing parts that

have not been tested together

with the heating system can com-

promise its function. Installing

non-authorised components and

non-approved modifications or

conversions can compromise

safety and may invalidate our

warranty.

For replacements, use only orig-

inal spare parts supplied or

approved by Viessmann.

Safety instructions

Safety instructions (cont.)

5458 009 GB

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance.......................................... 5

Further details regarding the individual steps....................................................... 6

Scope of inspection........................................................................................... 14

Parts lists

Parts list Vitosol 200-T, type SP2......................................................................... 15

Parts list Vitosol 300-T, type SP3A...................................................................... 17

Specification

Vitosol 200-T, type SP2........................................................................................ 19

Vitosol 300-T, type SP3A..................................................................................... 19

Certificates

Declaration of conformity...................................................................................... 20

Index

5458 009 GB

For further information regarding the individual steps, see the page indicated

Commissioning steps

Inspection steps

Maintenance steps Page

•1. Checking pressure conditions and pre-charge

pressure............................................................................. 6

••• 2. Checking the function of the safety equipment............. 7

••• 3. Check electrical connections.......................................... 7

•4. Flushing, testing for leaks and filling the solar thermal

system............................................................................... 8

••• 5. Determining the flow rate and adjusting if required...... 11

• • 6. Starting the system.......................................................... 12

••• 7. Checking the switching function of the solar control

unit..................................................................................... 12

• • 8. Checking heat transfer medium and replacing if

required............................................................................. 12

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance

5458 009 GB

Checking pressure conditions and pre-charge pressure

Cover the collectors.

Note

The glass cover of Viessmann flat-plate

collectors is coated with a protective

foil.

For vacuum tube collectors, use the tar-

paulins available as accessories.

Before the solar thermal system is

flushed or filled, check the pre-charge

pressure of the expansion vessel. This is

no longer possible once the solar ther-

mal system is operational.

Note

A manual pressure gauge can be found

in the solar service case available as an

accessory.

Enter values into the following table.

These can be retained for later inspec-

tion and maintenance work on the solar

thermal system.

Commissioning, inspection, maintenance

Further details regarding the individual steps

5458 009 GB

Documentation of pressure

1System pressure of the solar thermal system 1 bar

2Supplement per metre static ceiling + 0.1 bar/m

3System operating pressure (pressure gauge)

................ bar

Pressure reserve for venting + 0.1 bar

Filling pressure

................ bar

4Supplement per metre of height difference between pres-

sure gauge — expansion vessel 5

+ 0.1 bar/m

Deduction for hydraulic seal – 0.3 bar

Pre-charge pressure, expansion vessel 5

................ bar

Note

Note the pre-charge pressure level on

the expansion vessel. In doing so, spe-

cifically use the term "pre-charge pres-

sure" to prevent misunderstandings.

Example:

At 10 m static ceiling, the result is:

■ System operating pressure = 2 bar

■ Fill pressure = 2.1 bar

■ Pre-charge pressure = 1.7 bar

Checking the function of the safety equipment

Check the safety valve:

■ Response pressure

■ Correct installation, with blow-off line

Check electrical connections

Check the tightness of the electrical

plug-in connectors and cable grommets;

check cables for damage.

Commissioning, inspection, maintenance

Further details regarding the individual steps (cont.)

5458 009 GB

Flushing, testing for leaks and filling the solar thermal system

■

!Please note

Filling and commissioning the

solar thermal system without

first safeguarding heat transfer

results in thermal loads.

If commissioning is carried out

prior to this, cover the collec-

tors and keep covered until

heat transfer has been regula-

ted.

Note

The glass cover of Viessmann flat-

plate collectors is coated with a pro-

tective foil.

For vacuum tube collectors, use the

tarpaulins available as accessories.

■ Flushing the solar thermal system

– Soldered copper pipes

Flush particularly thoroughly as any

residual scale may damage the

operation of the solar thermal sys-

tem.

– Flush solar thermal system with heat

transfer medium. Otherwise there is

a risk that residual water from flush-

ing may become mixed with the heat

transfer medium and thus alter its

properties.

Note

To flush and fill the solar thermal

system, use the filling container or

filling station available as acces-

sories. These contain high speed

pumps with high pump rates and fil-

ters.

■Never drain the system with a suction

pump.

Commissioning, inspection, maintenance

Further details regarding the individual steps (cont.)

5458 009 GB

Solar-Divicon (accessory)

100

120 0

100

120

L/Min

AThermometer/non-return valve,

flow

BThermometer/non-return valve,

return

CSafety assembly, with 6 bar safety

valve

DFlow indicator

Fill valve (accessory)

EShut-off tap

FDrain & fill taps

Commissioning, inspection, maintenance

Further details regarding the individual steps (cont.)

5458 009 GB

APressure gauge

BDrain & fill taps

CContainer for heat transfer medium

DShut-off valve

1. Open shut-off taps or valves. With the

Solar-Divicon, open the non-return

valves by turning the thermometers

clockwise through 45° (see diagram

on page 9).

2. Close shut-off tap E; open drain &

fill taps F on the fill valve (see dia-

gram on page 9).

Connect hoses from the flushing and

filling facility. Fill the container with

heat transfer medium.

Note

Flush the system via the return con-

nection (flow direction to the collec-

tor).

Commissioning, inspection, maintenance

Further details regarding the individual steps (cont.)

5458 009 GB

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