Buderus FM441 User manual

For heating
contractors
Please read carefully
prior to installation.
Installation Instructions Modules for
Logamatic 4000
control panels
FM441 FM445 FM456
FM442 FM447 FM457
FM443 FM448 FM458
7 747 012 082-01.1RS
6 720 617 490 - 11/2008 US/CA

Contents
Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications.
2
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Definition of the various modules . . . . . . . . . . . . . . . . . . . . 3
1.2 Modules and their identification (names) . . . . . . . . . . . . . . . 4
2Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Standards, regulations and directives . . . . . . . . . . . . . . . . . 6
2.4 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5 Please observe these notes. . . . . . . . . . . . . . . . . . . . . . . . 7
2.6 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Module installation for Logamatic 43xx controls. . . . . . . . . 9
3.1 Possible module installations for Logamatic 43xx controls . . . . 9
3.2 Arrangement of modules in the control panel. . . . . . . . . . . . .11
3.3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications. 3
Introduction 1
1 Introduction
These installation instructions explain the installation of the FM4xx
function modules in the Logamatic 4000 control panel series.
1.1 Definition of the various modules
Tab. 1 Definition of modules
USER NOTE
In general, you can also use these installation instructions for the
installation of other modules since the procedures are similar.
Definitions
CM = Controller module
FM = Function module
NM = Power supply module
ZM = Central or additional module

Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications.
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Introduction1
1.2 Modules and their identification (names)
Tab. 2 Identification (names) of modules
Identifi-
cation Name
Controller
module CM431 Controller module
Power
supply
module
NM482 Power supply module
Central
module
ZM422 Burner control + 1 heating zone +
1 DHW circuit
ZM424 Boiler control + 2 heating zones +
1 DHW circuit
ZM432 Burner + boiler circuit functions
ZM434 Burner + boiler circuit functions +
0 – 10 % burner control
ZM425 Display module
Function
module
FM441 1 heating zone + 1 DHW consumer
FM442 2 heating zones
FM443 Solar circuit
FM445 LAP/LSP (charging system)
FM447 Strategy
FM448 Centralized alarm message
FM456 KSE 2 (cascade – 2 wall-mounted
boilers) with EMS
FM457 KSE 4 (cascade – 4 wall-mounted
boilers) with EMS
FM458 Strategy + EMS

Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications. 5
Safety 2
2 Safety
2.1 About this manual
This chapter contains general safety instructions that must be
observed when installing the FM4xx function modules in the
Logamatic 4000 control panels.
Also closely observe additional safety instructions in other
chapters of these installation instructions. Read the safety
instructions carefully before starting the installation.
If the safety instructions are not observed, serious or even fatal
personal injury and damage to property and the environment may
be caused.
2.2 Intended use
You can install the FM4xx function modules in the Logamatic 4000
control panels.

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Safety2
2.3 Standards, regulations and directives
2.4 Key to symbols
Two levels of danger are identified and signified by the following
terms:
USER NOTE
Observe all regulations and standards applicable to installation
and operation of the system in your country.
USER NOTE
All electrical components must be approved for the USA and
Canada!
This product has been tested and certified and meets applicable
standards for the US and Canadian markets.
WARNING!
RISK OF LIFE
Identifies possible dangers emanating from a product that might
cause serious injury or death if appropriate care is not taken.
CAUTION!
RISK OF INJURY/
SYSTEM DAMAGE
Indicates a potentially dangerous situation that could cause minor
or moderately serious injuries or damage to property.

Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications. 7
Safety 2
2.5 Please observe these notes
The FM4xx function modules have been designed and
manufactured in accordance with currently recognized standards
and safety requirements.
However, damage resulting from improper installation cannot be
completely prevented.
Read these installation instructions carefully before installing the
FM4xx function modules.
The following safety instructions must be observed during
installation of the function modules.
USER NOTE
Tip for optimum use of equipment and adjustment as well as
useful information.
WARNING!
RISK OF FATAL INJURY
due to electric shock!
zThe installation, electrical wiring, commissioning, electrical
connection, as well as maintenance and repairs must only be
carried out by a trained contractor who adheres to all current
technical regulations and requirements.
zThe local regulations must be observed.
WARNING!
RISK OF FATAL INJURY
due to electric shock!
zMake sure that all electrical work is carried out by a trained
contractor.
zBefore opening the control panel: isolate all poles of the power
supply and secure against accidental reconnection.

Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications.
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Safety2
2.6 Disposal
zElectronic components do not belong in household waste.
Dispose of defunct modules correctly through an authorized
disposal site.
WARNING!
RISK OF FATAL INJURY
due to electric shock!
The risk of voltage transfers between the line voltage (120 V) and
the low voltage wiring through accidental loosening of the wires at
the terminals must be prevented.
zTherefore secure individual cables together in bundles (e.g.
with cable ties) or strip off only a minimum of the outer
insulation.
CAUTION!
DEVICE DAMAGE
through electrostatic discharge (ESD).
zBefore unpacking the modules touch a radiator or a grounded
metal water pipe to discharge any electrostatic charge in your
body.
USER NOTE
Ensure that a circuit breaker is available to disconnect all poles
from the mains power supply. If there is no circuit breaker, you will
need to install one.
USER NOTE
Only use original Buderus spare parts. Damage as a result of the
use of spare parts not supplied by Buderus are excluded from the
Buderus warranty.

Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications. 9
Module installation for Logamatic 43xx controls 3
3 Module installation for Logamatic 43xx controls
This section describes the installation of the FM4xx function
modules in the Logamatic 43xx control panels.
3.1 Possible module installations for Logamatic 43xx controls
Tab. 3 Basic equipment of controls and optional extras
O = basic equipment
X = additional equipment
– = combination/installation not possible
USER NOTE
zCheck whether the delivery is complete.
If it is not, please contact your dealer.
Identification 43xx
4311 4312 4321 4322 4323
Modules
CM431OOOOO
NM482 OOOOO
ZM432 O O – – –
ZM433 – – – – O
ZM434 X X O O –
FM441 XXXXX
FM442XXXXX
FM443 XXXXX
FM445XXXXX
FM447 X – X X –
FM448XXXXX
FM456 – – – – X
FM457––––X
FM458 XXXXX
ZM426XXXX–

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Module installation for Logamatic 43xx controls3
USER NOTE
The FM441 and FM445 modules must never be installed together
in the same control panel.
If a FM441 module is already integrated into the control panel, you
must remove it before installing an FM445.
If you install both modules (FM441 and FM445), this will cause an
error message on the display of the MEC2.
USER NOTE
The installation position of the modules can be freely selected.
The only exception to this is the FM445.
You can install the FM445 module, depending on the number of
modules used, in slot 3 or 4 (ÆFig. 1, [3] and [4], page 11).
USER NOTE
The FM447 and FM448 modules must never be installed together
in the same control panel.
If you install both modules (FM447 and FM448), this will cause an
error message on the display of the MEC2.
USER NOTE
The FM448 and FM458 modules must never be installed together
in the same control panel.
If you install both modules (FM448 and FM458), this will cause an
error message on the display of the MEC2.
USER NOTE
The FM456/FM457 and FM458 modules must never be installed
together in the same control panel.
If you install both modules (FM456/FM457 and FM458), this will
cause an error message on the display of the MEC2.

Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications. 11
Module installation for Logamatic 43xx controls 3
3.2 Arrangement of modules in the control panel
Generally you can install the additional modules in any free slot
(1 – 4). Make sure that the power supply leads from module to
module. For a sensible logical numbering of the heating zones,
insert the modules in order from left to right (slots 1 – 4).
Fig. 1 Layout of slots
1Slot 1 for additional module
2Slot 2 for additional module
3Slot 3 for additional module
4Slot 4 for additional module
5Slot B behind MEC2 remote control
6Slot A for central module ZM432 or ZM434 (standard equipment)
6 720 618 335-01.1RS
1 2 3 4
65
USER NOTE
Slot A (ÆFig. 1, [6]) is always occupied by one of the central
modules ZM432 or ZM434; slot B (ÆFig. 1, [5]) is always
occupied by the controller module CM431 and the MEC2 remote
control.

Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications.
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Module installation for Logamatic 43xx controls3
Example
Heating zone assignment for two heating zone modules (FM442)
and one heating zone and DHW module (FM441):
For installation of the FM458 module, you may need the
connecting cable included with the module in order to supply
adjacent modules of the FM458 with mains power.
Fig. 2 Example of the layout of function modules
Slot 1
FM442
Slot 2
FM442
Slot 3
FM441
Heating zone 1 Heating zone 3 Heating zone 5
Heating zone 2 Heating zone 4 DHW circuit
6 720 618 335-02.1RS

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Module installation for Logamatic 43xx controls 3
3.3 Installation
zLoosen both screws (ÆFig. 3, [1] und [3]) on the top side of the
appliance.
zRemove terminal cover (ÆFig. 3, [2]).
Fig. 3 Removing covers
3
1
2
WARNING!
RISK OF LIFE
due to electrical current when the control panel is open.
zBefore opening the control panel:
isolate all poles of the power supply and secure against
accidental reconnection.

Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications.
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Module installation for Logamatic 43xx controls3
To install a new module
zRemove blank from slot 1 (ÆFig. 4) in the control panel.
zConnection cables for sensors and pumps must be laid before
installation of the module and provided with terminals (for more
detailed information, please see the technical documentation
for the Logamatic 43xx control panels).
zInsert the new module by pressing it down from above onto the
sensor strip in the free slot (ÆFig. 4) until it snaps in audibly.
Fig. 4 Module installation and removal
WARNING!
RISK OF LIFE
due to metallic jumpers!
zWhen stripping insulation or cutting the cables, make sure that
no pieces of cable fall into the electrical or electronic parts.

Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications. 15
Module installation for Logamatic 43xx controls 3
When removing and replacing a module
zLoosen all the connectors of the module in question and fix in
park position (for more detailed information, please see the
installation instructions for the Logamatic 43xx control panels).
zRemove module from the control panel.
zInsert the new module by pressing it down from above onto the
sensor strip in the free slot (ÆFig. 4, page 14) until it snaps in
audibly.
zPlug sensor cables and pump connections into the places
provided on the module.
zPlug the 120 V module plug onto the position on the plug bar
(for module connection in slot 1, ÆFig. 5).
Fig. 5 Providing the 120 V power supply
USER NOTE
The connector clips are locked to prevent disconnection.
zWhen removing the terminals push the locking plate upwards.

Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications.
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Module installation for Logamatic 43xx controls3
zPosition terminal cover and fasten with the screws.
zTest the function of the modules.
For more detailed information, see the operating or service
instructions for the Logamatic 43xx control panels.
USER NOTE
If no 120 V power supply for the module or its 120 V components
is installed (e.g. plugs not connected), the components in question
(e.g. pumps) will not be powered.
This malfunction cannot be detected at the affected module,
because the LED and the control functions operate independently
of this power supply.

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Notes

Modules for Logamatic 4000 control panels - We reserve the right to make technical modifications.
18
Notes

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Notes