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.
2
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
Safety instructions
5604 447 GB
3
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
4
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
Index
5604 447 GB
5
Appendix
Wiring of plug, Pyromat Eco................................................................................. 63
Installation schemes............................................................................................. 71
Keyword index.................................................................................................... 74
Index
Index (cont.)
5604 447 GB
6
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
7
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
8
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
9
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
10
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
90
80
70
60
50
40
30
0 -10 -2010
A
B
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
C
-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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