Viessmann KOB Pyromat ECO Istruzioni operative

Service instructions

for contractors

Pyromat ECO

Wood gasification boiler

for 50 cm or 100 cm logs

PYROMAT ECO

5604 447 GB 10/2010 Please keep safe.

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

rial 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 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 gas equipment must only be

carried out by a qualified gas fitter.

■ 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, TRGI,

TRF, VDE and all locally applicable

standards,

■ Gas Safety (Installation & Use) Regu-

lations

– the appropriate Building Regulation

either the Building regulations, the

Building Regulation (Scotland),

Building Regulations (Northern Ire-

land),

– the Water Fittings Regulation or

Water Bylaws in Scotland,

– the current I.E.E. Wiring Regula-

tions.

If you smell gas

Danger

Escaping gas can lead to explo-

sions which may result in serious

injury.

■ Never smoke. Prevent naked

flames and sparks. Never

switch lights or electrical appli-

ances ON or OFF.

■ Close the gas shut-off valve.

■ Open windows and doors.

■ Remove all people from the

danger zone.

■ Notify your gas or electricity

supplier from outside the build-

ing.

■ Shut off the electricity supply to

the building from a safe place

(outside the building).

Safety instructions

5604 447 GB

If you smell flue gas

Danger

Flue gas can lead to life-threat-

ening poisoning.

■ Shut down the heating system.

■ Ventilate the boiler room.

■ Close all doors leading to the

living space.

Working on the system

■ When using gas as fuel, also close the

main gas shut-off valve and safeguard

against unauthorised reopening.

■ 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 electro-static dis-

charges.

Touch earthed objects, such as

heating or water pipes, to dis-

charge static loads.

Repair work

!Please note

Repairing components which ful-

fil a safety function can compro-

mise the safe operation of your

heating system.

Replace faulty components only

with original Viessmann spare

parts.

Ancillary components, spare and

wearing parts

!Please note

Spare and wearing parts which

have not been tested together

with the heating system can com-

promise its function. Installing

non-authorised components and

non-approved modifications/con-

version can compromise safety

and may invalidate our warranty.

For replacements, use only orig-

inal spare parts from Viessmann

or those which are approved by

Viessmann.

Safety instructions

Safety instructions (cont.)

5604 447 GB

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance.......................................... 6

Further details regarding the individual steps....................................................... 7

Codes

Code 1.................................................................................................................. 14

Code 2.................................................................................................................. 18

Service scans

Service functions.................................................................................................. 21

Diagnosis.............................................................................................................. 21

Scanning operating conditions and sensors ........................................................ 24

Troubleshooting

Fault display......................................................................................................... 25

Repair................................................................................................................... 29

Mixer circuit extension kit

Overview of connections...................................................................................... 33

Required settings................................................................................................. 34

Mixer circuit extension kit..................................................................................... 35

Specification......................................................................................................... 37

Function description

Display and control elements............................................................................... 38

Control functions.................................................................................................. 38

Designs

Overview of PCB.................................................................................................. 40

Connection and wiring diagram............................................................................ 42

230 V plug............................................................................................................ 44

Plug, LV................................................................................................................ 49

Parts lists............................................................................................................ 56

Commissioning/service reports........................................................................ 60

Specification....................................................................................................... 61

Certificates

Declaration of conformity...................................................................................... 62

Index

5604 447 GB

Appendix

Wiring of plug, Pyromat Eco................................................................................. 63

Installation schemes............................................................................................. 71

Keyword index.................................................................................................... 74

Index

Index (cont.)

5604 447 GB

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

Commissioning steps

Inspection steps

Maintenance steps Page

•1. Filling the heating system.............................................. 7

••• 2. Checking all connections on the heating water side

for leaks

•3. Switching the power ON................................................ 7

•4. Matching the control unit to the heating system ........ 7

•5. Checking outputs and actuators................................... 8

•6. Adjusting the heating curves........................................ 9

• • 7. Shutting down the system............................................. 12

• • 8. Cleaning the combustion chamber............................... 12

•9. Cleaning the flue gas fan and Lambda probe.............. 13

• • 10. Emptying the ash pans (if required)............................. 13

••• 11. Checking the function of safety valves

•12. Instructing the system user........................................... 13

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance

5604 447 GB

Filling the heating system

1. Check the pre-charge pressure of the

diaphragm expansion vessel.

If the pre-charge pressure of the dia-

phragm expansion vessel is lower

than the static system pressure, top

up with nitrogen until the pre-charge

pressure is 0.1 to 0.2 bar higher.

Adjust the pre-charge pressure

accordingly if it is too high.

2. Top up your heating system with

water and vent until the fill pressure

is 0.1 to 0.2 bar higher than the pre-

charge pressure of the diaphragm

expansion vessel.

Permiss. operating pressure: 3 bar

Test pressure: 4 bar

3. Mark the fill pressure at the pressure

gauge.

Switching the power ON

Matching the control unit to the heating system

Subject to the equipment level, the control unit must be matched to the system.

Boiler temperature

DHW

Solar energy

Information

Select with

48 °C

Heating

(

START

STOP

Check and possibly adjust all addresses

in Code 1 (see chapter "Code 1").

Note

The chapters "Coding 1" (from page

14) and "Coding 2" (from page 18)

contain additional setting options.

Commissioning, inspection, maintenance

Further details regarding the individual steps

5604 447 GB

Checking outputs and actuators

Carrying out an actuator test

Note

An actuator test is only possible when the boiler is cold.

If the actuator test is carried out for one mixer, all other connected mixers remain in

standard operation. Following the actuator test, the tested mixer reverts to standard

operation after 3 minutes.

With respect to their application, the actuators are split into several categories:

■ Boiler actuators

■ Actuators for the corresponding mixer modules

Press the following keys:

1. d + MENU simultaneously for

approx. 4 s.

The "Service" menu is

displayed.

2. |/~for "Actuator test".

3. dto confirm.

4. |/~for the required actua-

tor category.

5. dto confirm.

6. |/~for the required actua-

tor or relay output.

Note

The actuator test is ter-

minated automatically

if no input is made for

5 min.

7. dto confirm.

8. dto terminate.

9. Press g until the default display is

shown.

The actuator test has been termina-

ted.

Commissioning, inspection, maintenance

Further details regarding the individual steps (cont.)

5604 447 GB

The following boiler actuators can be controlled subject to system equipment

level (not required during commissioning):

Display Explanation

"Boiler pump ON"

"Open boiler valve"

"Close boiler valve"

"Open valve accumulator [Open buffer

valve]"

"Close valve accumulator [Close buf-

fer valve]"

"Open primary air valve [Open primary

air damper]"

"Close primary air valve [Close pri-

mary air damper]"

"Open secondary air valve [Open sec-

ondary air damper]"

"Close secondary air valve [Close sec-

ondary air damper]"

"Open central fault" Test of fault alarm system connected on-

site (if installed).

The following mixer module actuators can be controlled separately depending

on the module (recommended during commissioning):

Display Explanation

"Pump on"

"Open valve"

"Close valve"

Adjusting the heating curves

The heating curves illustrate the relationship between the outside temperature and

the boiler water or flow temperature.

To put it simply: The lower the outside temperature, the higher the boiler water or flow

temperature.

The room temperature, again, depends on the boiler water or flow temperature.

Settings in the delivered condition:

■ Slope = 1.4

■ Level = 0

Commissioning, inspection, maintenance

Further details regarding the individual steps (cont.)

5604 447 GB

0.2

Outside temperature in °C

Boiler water or

Flow temperature in °C

Slope

2.4

2.6 2.8

3.0 3.2

3.4

0 -10 -2010

2.0

2.2

Set room temperature in °C

35 30 25 20 15 10 5

0.4

0.6

0.8

1.0

1.2

1.4

-30

1.8

1.6

-14

Example for outside temperature

−14 °C:

AUnderfloor heating system, slope

0.2 to 0.8

BLow temperature heating system,

slope 0.8 to 1.6

CHeating system with a boiler water

temperature in excess of 75 °C,

slope 1.6 to 2.0

Adjusting the set room temperature

Individually adjustable for each heating

circuit.

The heating curve is offset along the axis

of the set room temperature. When the

heating circuit pump logic function has

been enabled, it modifies the starting

and stopping characteristics of the heat-

ing circuit pump.

Commissioning, inspection, maintenance

Further details regarding the individual steps (cont.)

5604 447 GB

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