Operating instructions Logamatic 4211

Operating instructions Logamatic 4211
Operating instructions
Logamatic 4211
Control unit
For users
7 747 016 927 - 03/2008 GB/IE
Read carefully before use
Contents
1
Introduction .
2
What you should know about your heating system .
3
Tips on energy-efficient heating
4
Safety .
4.1
4.2
4.3
4.4
4.5
4.6
4.7
5
7
About these instructions . . . . . . . .
Correct use . . . . . . . . . . . . . . . .
Standards and guidelines/directives .
Symbol key . . . . . . . . . . . . . . . .
Please observe these notes. . . . . .
Cleaning the control unit . . . . . . . .
Disposal . . . . . . . . . . . . . . . . . .
Control unit controls. . . . . .
MEC2 programming unit . . .
Switching on the control unit
Switching off the control unit
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Simple operation. . . . . . . . .
Permanent display . . . . . . .
Selecting the operating mode .
Setting the room temperature .
Heating DHW. . . . . . . . . . .
Extended functions
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
7.14
7.15
7.16
2
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Standard functions
6.1
6.2
6.3
6.4
6.5
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Controls and MEC2 programming unit
5.1
5.2
5.3
5.4
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
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Keys for extended functions . . . . . . . . . . . . . . . . . . . .
Controlling the extended functions . . . . . . . . . . . . . . . . .
Displaying operating values . . . . . . . . . . . . . . . . . . . . .
Changing the permanent display . . . . . . . . . . . . . . . . . .
Setting the date and time . . . . . . . . . . . . . . . . . . . . . .
Selecting a heating circuit . . . . . . . . . . . . . . . . . . . . . .
Adjusting the room temperature for another heating circuit. .
Heating circuits with MEC2 programming unit. . . . . . . . . .
Selecting and modifying a heating program . . . . . . . . . . .
Selecting a standard program . . . . . . . . . . . . . . . . . . .
Summary of standard programs . . . . . . . . . . . . . . . . . .
Modifying the standard program by moving switching points
Setting the summer/winter time adjustment . . . . . . . . . . .
Setting the DHW operating mode . . . . . . . . . . . . . . . . .
Setting the operating mode for DHW circulation . . . . . . . .
Setting the holiday function . . . . . . . . . . . . . . . . . . . . .
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Logamatic 4211 - Subject to technical modifications.
Contents
7.17
7.18
7.19
7.20
7.21
8
Additional programming options
8.1
8.2
8.3
8.4
9
Interrupting and continuing the holiday function
Setting the party function . . . . . . . . . . . . . .
Setting the pause function . . . . . . . . . . . . .
Room temperature matching . . . . . . . . . . . .
Automatic maintenance message . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . 46
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Modifying the standard program by inserting/deleting switching points .
Creating a new heating program . . . . . . . . . . . . . . . . . . . . . . . .
Creating a new DHW program . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating a new DHW circulation pump program . . . . . . . . . . . . . . .
Modules and their functions .
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9.1 ZM422 central module (standard equipment level) . . . . . . . . . . . . . . . . . . . . . . 65
9.2 FM442 function module (accessory) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
10 Boiler flue gas test
11 Troubleshooting
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
11.1 Simple troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
11.2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
12 Operation in the event of a fault
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
12.1 Emergency mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
12.2 Heating with manual override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
13 Setup report
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
14 Keyword index
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Logamatic 4211 - Subject to technical modifications.
3
1
1
Introduction
Introduction
With your purchase of this Logamatic control unit you
have acquired a product that promises you easy control
over your heating system. It offers you optimum heating
convenience and minimum energy consumption.
The control unit enables you to operate your heating
system to be able to combine your economical and
ecological aspirations. Of course, your personal comfort
is always priority.
The control unit, which is regulated by the MEC2
programming unit, is set up at the factory for immediate
use. Naturally, you or your heating contractor can modify
these default settings and adapt them to your individual
requirements.
The MEC2 programming unit is the central control unit.
Some functions which you may need are located behind
a flap. The keys behind this flap enable you to make
various adjustments.
The control concept is:
"Push and turn"
"This control unit speaks your language."
Your heating system offers a wealth of other useful
functions. Some examples of these are:
– Automatic summer/winter time adjustment
– Party/pause function
– Holiday function
– DHW heating at the touch of a button
4
Logamatic 4211 - Subject to technical modifications.
What you should know about your heating system
2
2
What you should know about your heating system
Why should you become more familiar with your
heating system?
Modern heating systems offer many functions for saving
energy without sacrificing comfort. Getting to know this
heating technology may appear daunting at first, but
after a short while you will recognise the advantages you
can gain from a heating system that is set up to meet
your personal requirements. The more you are aware of
the options offered by your heating system, the greater
the benefit you will be able to draw from it.
How does your heating system work?
Your heating system comprises the boiler with burner,
heating control unit, pipework and radiators. A DHW
cylinder or an instantaneous water heater heats the
water required for a shower, bath or washing your
hands. Subject to the way your heating system has been
installed, it can operate either purely as a central heating
system or together with a DHW cylinder. The important
thing is that the various components match each other.
The burner combusts fuel (e.g. gas or oil) and heats the
water inside the boiler. Using pumps, this hot water is
transported through the pipework to the consumers
(radiators, underfloor heating system, etc).
Logamatic 4211 - Subject to technical modifications.
5
2
What you should know about your heating system
Fig. 1 shows the heating circuit of a pumped central
heating system: The burner [2] heats the water inside
the boiler [1]. This heating water is transported by the
pump [3] through the flow line [4] to the radiators [6]. The
heating water flows through the radiators, and in doing
so, gives off some of its heat. The heating water flows
back to the boiler via the return line [7], where the cycle
starts again.
The room temperature can be adjusted to your personal
requirements using the thermostatic radiator valves [5].
All radiators are supplied with the same flow
temperature. The heat transferred to the room depends
on the radiator surface and the heating water
throughput. Therefore, the heat transfer can be
manipulated via the thermostatic radiator valves.
Fig. 1
Pumped central heating design
1
Boiler
2
Burner
3
Pump
4
Flow line
5
Thermostatic radiator valves
6
Radiators
7
Return line
What determines the heat demand of a room?
The heat demand of a room largely depends on the
following factors:
– Outside temperature
– Required room temperature
– Type of construction/insulation of the building
– Wind chill factor
– Solar radiant energy
– Internal heat sources (open fireplace, occupants,
lamps, etc.)
– Closed or open windows
Take these factors into consideration to achieve
a comfortable room temperature.
6
Fig. 2
Influences on the room climate
Logamatic 4211 - Subject to technical modifications.
What you should know about your heating system
2
Why do you need a heating control unit?
The heating control unit ensures convenient heat and
economical consumption of fuel and electrical energy.
It starts the heat source (boiler and burner) and pumps
when warm rooms or DHW are required. In doing so, it
utilises the components of your heating system at the
correct time.
Furthermore, your heating control unit records different
variables that influence the room temperature and
compensates for these.
What does the control unit calculate?
Advanced control units calculate the temperature
required within the boiler (the so-called flow
temperature) subject to the outside temperature. The
relationship between the outside temperature and the
flow temperature is described as the heating curve.
The lower the outside temperature, the higher the flow
temperature must be.
The control unit can operate in three control modes:
– Weather-compensated control
– Room temperature-dependent control
– Weather-compensated control with room
temperature hook-up
Fig. 3
Logamatic 4211 - Subject to technical modifications.
Heating circuit curve (example)
x
Outside temperature
y
Flow temperature
7
2
What you should know about your heating system
Weather-compensated control
With weather-compensated control, only the outside
temperature captured by the outside temperature
sensor is decisive for the flow temperature level. Room
temperature fluctuations through solar radiant energy,
occupants, open fireplaces or similar external heat
sources are then ignored.
If you utilise this type of control, adjust the thermostatic
radiator valves so that the required room temperature is
achieved in the different rooms.
Room temperature-dependent control
Another possible heating control method is room
temperature-dependent control. The control unit
calculates the flow temperature based on the set and
actual room temperatures.
To be able to utilise room temperature-dependent
control, you need a room that is representative of your
whole home. All factors influencing the temperature in
this "reference room" – where the programming unit is
located – will also apply to all other rooms. Not every
home has a room that meets these requirements. Pure
room temperature-dependent control has, in such
cases, certain limitations.
Should you, for example, open a window in the room
where the room temperature is measured, the control
unit will "think" that you have opened the windows in
every room in your house and will begin to heat
vigorously.
Or the reverse might apply: You measure the
temperature in a south-facing room with different heat
sources (solar or other heat sources, e.g. an open
fireplace). Now the control unit "thinks" that it is as hot in
every room as in the reference room; consequently the
boiler output will be severely reduced so that, for
example, the north-facing rooms will become too cold.
Weather-compensated control with room
temperature hook-up
Weather-compensated control with room temperature
hook-up combines the advantages of the other two
control modes. The required flow temperature, which is
mainly subject to the outside temperature, can be
adjusted by the room temperature only to a limited
degree. This achieves improved maintenance of the
room temperature within the room containing the
programming unit, without completely ignoring the
other rooms.
With this kind of control you will also need to keep all
thermostatic radiator valves in the reference room fully
open.
Why do the thermostatic valves have to stay fully
open?
If, for example, you want to reduce the room
temperature in the reference room, and you therefore
close the thermostatic valve further, the flow rate
through the radiator is reduced and, therefore, less heat
is transferred to the room. This reduces the room
temperature. The control unit will endeavour to
counteract the drop in room temperature by raising the
flow temperature. However, raising the flow
temperature does not raise the room temperature, as
the thermostatic valve continues to limit the room
temperature.
An excessive flow temperature results in unnecessary
heat losses from the boiler and pipework. At the same
time, the temperature in all rooms without thermostatic
valves increases due to the higher boiler water
temperature.
With this kind of control you always need to keep all
thermostatic radiator valves in the reference room fully
open.
8
Logamatic 4211 - Subject to technical modifications.
What you should know about your heating system
2
Why do I need a time switch?
What are heating circuits?
Advanced heating systems are equipped with a time
switch to save energy. With a time switch you can set up
an automatic changeover between two different room
temperatures, subject to time. This enables you to set a
reduced room temperature at night, or other times when
a reduced temperature is sufficient, whilst operating
your heating system with the standard room
temperature during the day.
A heating circuit describes the circuit taken by the
heating water from the boiler via the radiators and back
again (Æ Fig. 1, page 6). A simple heating circuit
comprises a heat source, a flow line, a radiator and
a return line. A pump installed in the flow line circulates
the heating water.
You have four options for reducing the room
temperature via the control unit. Upon request, your
heating contractor will select and set up one of these
options:
– Total shutdown (no room temperature regulation)
– Reduced room temperature (a reduced room
temperature will be regulated)
– Change between total shutdown and reduced
heating subject to room temperature
– Change between total shutdown and reduced
heating subject to outside temperature
With total shutdown of the heating system, no pumps
or other system components are controlled. Heating
only recommences if the heating system is subject to
a risk of frost.
Several heating circuits may be connected to one
boiler, for example, one heating circuit for supplying
radiators and a further circuit for supplying an
underfloor heating system. In this case, the radiators
are supplied at a higher flow temperature than the
underfloor heating system.
The supply of different flow temperatures to different
heating circuits can be achieved by e.g. installing a
three-way valve between the boiler and the underfloor
heating system.
Using an additional temperature sensor in the flow of
the heating circuit to be supplied, sufficient cold return
water is mixed via a three-way valve into the hot flow
water, to achieve the required lower temperature. It is
important to note that heating circuits with three-way
valves require an additional pump. This pump enables
the second heating circuit to be operated independently
of the first heating circuit.
Heating with reduced room temperature (night mode)
only differs from standard heating mode (day mode)
through a lower flow temperature.
When changing from total shutdown to reduced
heating, total shutdown is activated subject to room
temperature when the actual room temperature
exceeds the set room temperature. This function is only
possible if a room temperature is being monitored.
When changing from total shutdown to reduced
heating, total shutdown is activated subject to outside
temperature when the actual outside temperature
exceeds the set outside temperature.
Logamatic 4211 - Subject to technical modifications.
9
3
3
Tips on energy-efficient heating
Tips on energy-efficient heating
Here are a few tips on how to heat economically, without
sacrificing convenience:
z Only heat if you need warmth. Utilise the preset
heating programs (standard programs) in the control
unit, or those that have been tailored to your
individual requirements.
z Air rooms correctly during the heating season: Open
windows fully three to four times a day for
approximately 5 minutes. Having the window slightly
open all the time does not provide an air change and
wastes valuable energy.
z Close the thermostatic valves whilst ventilating.
z Windows and doors are places where a lot of heat is
lost. Therefore, check whether the doors and
windows are correctly sealed. Shut your roller
shutters (if installed) at night.
z Never position large objects such as a sofa or a desk
immediately in front of the radiators, (minimum
clearance 50 cm). Otherwise, the heated air cannot
circulate and heat the room adequately.
z In rooms you occupy during the day, you can, for
example, set a room temperature of 21 °C, whilst
17 °C may be sufficient at night. To achieve this, use
standard heating mode (day mode) and setback
mode (night mode) (Æ Chapter 6).
z Never overheat rooms; overheated rooms are
unhealthy, plus they waste money and energy. If you
reduce the day room temperature, for example from
21 °C to 20 °C, you can save approximately six
percent of your heating bill.
z Also heat in an energy-conscious manner in spring
and autumn, and utilise the summer/winter time
adjustment (Æ Chapter 7).
z A pleasant room climate not only depends on the
room temperature, but also on the relative humidity.
The drier the air, the cooler a room feels. You can
optimise the relative humidity with house plants.
z You can also save money when heating DHW: Only
operate the DHW circulation pump via a time switch.
Research has shown that it is generally sufficient to
run the DHW circulation pump for only three minutes
every half hour.
z Arrange for your heating contractor to service your
heating system annually.
10
Logamatic 4211 - Subject to technical modifications.
Safety
4
Safety
4.1
About these instructions
These operating instructions contain important
information regarding the safe and correct operation of
the Logamatic 4211 control unit.
4.2
Correct use
4.5
4
Please observe these notes
z Only operate the control unit as intended and if it is in
perfect working order.
z Let your heating contractor instruct you thoroughly in
the operation of this system.
z Read these operating instructions carefully.
The Logamatic 4211 control unit is designed to control
heating systems in detached houses, apartment
buildings, residential complexes and other buildings.
z Only enter or change the operating values detailed in
these instructions. Other entries alter the control
programs of the heating system and can lead to
incorrect system functions.
4.3
z Maintenance and repairs as well as troubleshooting
should only be carried out by authorised and
qualified personnel.
Standards and guidelines/directives
The design and operation of this product
conform to European Directives and the
supplementary national requirements.
Its conformity is demonstrated by the CE
designation.
RISK TO LIFE
from electric shock.
WARNING!
z In an emergency, switch off the control
unit (e.g. with the heating system
emergency stop switch) or isolate the
heating system from the mains supply
by removing the main fuse.
You can view the Declaration of Conformity
on the internet at www.buderus.de/konfo or
request a copy from your local Buderus
sales office.
4.4
z Arrange for your heating contractor to
rectify any heating system faults
immediately.
Symbol key
Two levels of danger are identified and signified by the
following terms:
RISK TO LIFE
WARNING!
CAUTION!
z Never open the control unit.
RISK OF INJURY/
SYSTEM DAMAGE
CAUTION!
from operator error.
Identifies possible risks associated with a
product that might lead to serious injury or
death if appropriate care is not taken.
Operator errors can result in injury and/or
damage to property.
RISK OF INJURY/
SYSTEM DAMAGE
z Ensure that only personnel able to
operate the appliance correctly have
access to it.
Indicates a potentially dangerous situation
which could lead to minor or moderately
serious injuries or to damage to property.
z Ensure that children never operate the
appliance unsupervised or play with it.
USER INFORMATION
User tips for the optimum utilisation and
setting of the appliance plus useful
information.
Logamatic 4211 - Subject to technical modifications.
11
4
Safety
RISK OF SCALDING
For thermal disinfection, the entire DHW
system is set at the factory to heat up to
WARNING!
70 °C (start: Tuesday night at 01:00).
z If required (e.g. shift work), your
heating contractor can alter the start
time.
z During this time, never open any hot
water tap without mixing in cold water if
the DHW circuit of your heating system
is not equipped with a thermostatic
mixer.
z As there is a risk of scalding at
temperatures above approximately
60 °C, ask your heating contractor
about the set DHW temperatures.
SYSTEM DAMAGE
CAUTION!
from frost.
When the heating system is switched off,
it can suffer damage from frost.
z Protect your heating system against
frost damage by draining it and the
DHW pipework at the lowest possible
point.
4.6
Cleaning the control unit
z Only clean the control unit with a damp cloth.
4.7
Disposal
z Dispose of the control unit packaging in an
environmentally responsible manner.
z The lithium battery in the CM431 module may only be
replaced by your heating contractor.
12
Logamatic 4211 - Subject to technical modifications.
Controls and MEC2 programming unit
5
Controls and MEC2 programming unit
5.1
Control unit controls
Fig. 4
Logamatic 4211 control unit - controls (delivered condition)
1
High limit safety cut-out
4
Connection for external service equipment and MEC2
2
Boiler water thermostat
5
Burner emergency operation switch
3
Fuse F1
6
ON/OFF switch
Fig. 5
1
5
Fitted modules
Slot 1: e.g. FM442 – heating circuit 1, heating circuit 2
A Slot A: ZM422 – heating circuit 0 / boiler / DHW
B Slot B: MEC2 (CM431) – MEC2 programming unit
2
Slot 2: e.g. FM442 – heating circuit 3, heating circuit 4
Logamatic 4211 - Subject to technical modifications.
13
5
5.2
Controls and MEC2 programming unit
MEC2 programming unit
The MEC2 programming unit is the central element with
which you operate your Logamatic 4211 control unit.
Display
The display (Æ Fig. 6, [4]) indicates functions and
operating values, e.g. the actual room temperature.
Rotary selector
4
The rotary selector (Æ Fig. 6, [5]) is used to set new
values and scroll through the menus.
3
Keys
2
You control the functions via the keys, and the relevant
indications appear on the display. If you push a key and
hold it down, you can change a value using the rotary
selector.
1
AUT
5
Tag
Zeit
Temp
Urlaub
Auswahl
So/Wi
Anzeige
Heizkreis
Zurück
6
7
The new value will be accepted and saved after you
release the key.
You can reach certain functions, such as day room
temperature, night room temperature, and possibly the
DHW temperature or automatic heating mode, directly
via the corresponding keys (Æ Fig. 6, [1] to [3] and [6]).
Behind a flap (Æ Fig. 6, [7]), further keys are available
for additional settings, e.g. for the entry of weekdays or
setting the time.
The unit automatically returns to the standard display if
no entry is detected for some time.
14
Fig. 6
MEC2 programming unit
1
Constant setback mode
2
Automatic heating mode in acc. with a time switch
3
Constant heating mode
4
Display
5
Rotary selector
6
Enter DHW temperature/reheating
7
Flap for the keypad of control level 2
Logamatic 4211 - Subject to technical modifications.
Controls and MEC2 programming unit
5
MEC2 programming unit
9
1
2
3
10
4
5
11
12
6
13
7
14
8
15
17
16
7 747 012 074-01.1RS
Fig. 7
MEC2 programming unit
1
Display
9
2
Rotary selector
10 Display for set room temperature
3
Constant heating mode
11 Enter DHW temperature/reheating
4
Automatic heating mode in acc. with a time switch
12 Set the time
5
Constant setback mode
13 Change temperature values
6
Enter the day of the week
14 Summer/winter time adjustment
7
Enter holidays
15 Back to the standard display
8
Select standard display
16 Select a time switch program
Radio clock signal (only within Germany)
17 Select heating circuits/DHW circuit
Logamatic 4211 - Subject to technical modifications.
15
5
5.3
Controls and MEC2 programming unit
Switching on the control unit
z Check that the control unit ON/OFF switch
(Æ Fig. 8, [1]) and the switches on the fitted modules
(Æ Fig. 8, [2]) are set to "I" and "AUT".
z Switch the control unit ON by setting the ON/OFF
switch to "I" (Æ Fig. 8, [1]).
After approximately 2 minutes all modules fitted to the
control unit are recognised, and the standard display is
shown.
Fig. 8
5.4
ON/OFF switch
1
ON/OFF switch
2
Switch on the module
Switching off the control unit
z Switch the control unit OFF by setting the ON/OFF
switch to "0" (Æ Fig. 8, [1]).
z When there is a risk: Isolate the heating system from
the mains supply with the emergency stop switch
upstream of the boiler room, or by removing the main
fuse.
16
Logamatic 4211 - Subject to technical modifications.
Standard functions
6
6
Standard functions
In this chapter you will find information about the standard functions of the MEC2
programming unit and their use. The standard functions are:
– Selecting the operating mode
– Setting the room temperature
– Setting the DHW temperature
– Heating DHW once
6.1
Simple operation
The standard functions are controlled by pressing one of the keys on the
"Standard function" keypad or by turning the rotary selector.
AUT
AUT
Tag
Zeit
Temp
Urlaub
Auswahl
So/Wi
Anzeige
Heizkreis
Zurück
Example: Adjusting the room temperature for day mode
Press "Day mode" to select the standard heating mode (day mode). The LED of
the "Day mode" key illuminates; day mode is enabled.
Set the required room temperature by turning the rotary selector. (Condition: For
this, the programming unit flap must be closed.)
The display shows the set value.
Set room
21°C
Constant day
USER INFORMATION
If your heating system is equipped with several heating circuits, first select the
correct heating circuit (Æ Chapter 7.6). Only then can you select the operating
mode and room temperature.
USER INFORMATION
The following MEC2 displays only describe the possible displays:
– of the ZM422 module (standard equipment level)
– of the most frequently used FM442 module (accessory)
Logamatic 4211 - Subject to technical modifications.
17
6
Standard functions
Subject to the way your heating contractor has configured your system, one or
more MEC2 displays may not appear, although the above modules are fitted in
your control unit.
Detailed descriptions of MEC2 displays for other modules are included in the
corresponding module documentation.
6.2
Permanent display
There are two different permanent displays. Either one of the factory-set
permanent displays is shown, subject to whether the MEC2 is fitted in the control
unit or is installed as a wall mounted unit.
Factory-set permanent display, if the MEC2 is fitted in the control unit.
Common flow
45°C
Outside temp.
21°C
Factory-set permanent display, if the MEC2 is installed as a wall mounted unit.
Actual room
19.5°C
Outside temp.
0°C
6.3
Selecting the operating mode
You can operate the MEC2 programming unit in two ways:
– In automatic mode
– In manual mode
AUT
Automatic mode
AUT
Tag
Zeit
Temp
Urlaub
Auswahl
So/Wi
Anzeige
Heizkreis
Zurück
Generally, homes are heated less at night than during the day. With the MEC2
programming unit you don't need to adjust the thermostatic radiator valves
before bedtime or in the morning. The automatic changeover of the MEC2
programming unit does this for you. It changes over between day mode
(standard mode) and night mode (setback mode).
The times at which your heating system changes from day to night mode – and
vice-versa – are factory-set via standard programs (Æ Chapter 7.10). However,
you or your heating contractor can modify these settings (Æ Chapter 7.12).
Manual mode
For example, if you want to heat longer in the evening or not quite as early in the
morning, you can also select day and night mode manually (Æ Chapter 6.3.2).
You can also use manual mode to heat on cooler days when the system
operates in summer mode.
18
Logamatic 4211 - Subject to technical modifications.
Standard functions
6
6.3.1 Selecting automatic mode
In automatic mode your heating system will operate with the time switch
program, i.e. central and DHW heating at preset times.
Example: Enabling automatic mode
AUT
Press "AUT".
The "AUT" LED illuminates; automatic mode is enabled.
In addition, either the "Day mode" or "Night mode" LED will illuminate. This is
subject to the set times for day and night mode.
Set room
21°C
Automatic day
Automatic day and night mode
At fixed times, central heating is provided or the room temperature is set back.
21 °C
1
17 °C
2
05:30
22:00
7 747 012 053-18.1RS
Fig. 9
Changeover from day and night mode at fixed times (example)
1
Day mode
2
Night mode
6.3.2 Selecting manual mode
Press either "Day mode" or "Night mode" to change to manual mode.
Press "Day mode".
The "Day mode" LED illuminates. Now your heating system is in constant day
mode (standard mode).
Set room
21°C
Constant day
Press "Night mode".
The "Night mode" LED illuminates. Your heating system is now in constant night
mode (setback mode), and operates at a lower room temperature.
Set room
17°C
Constant night
USER INFORMATION
If you have selected manual mode, other automatic controls will also be
switched off, e.g. the summer/winter time adjustment (Æ Chapter 7.13).
Logamatic 4211 - Subject to technical modifications.
19
6
6.4
Standard functions
Setting the room temperature
With the flap closed you can adjust the room temperature with the rotary
selector. With the flap open, also press "Day mode" or "Night mode".
With the rotary selector, you can select the room temperature in degree steps
between 11 °C (day), or 2 °C (night), and 30 °C. The set temperature is displayed
via an LED next to the rotary selector. For temperatures below 15 °C or above
25 °C, the "–" or "+" LED illuminates.
AUT
AUT
The factory setting for the day room temperature is 21 °C.
The factory setting for the night room temperature is 17 °C.
Tag
Zeit
Any adjustment applies to all heating circuits assigned to the MEC2
programming unit (Æ Chapter 7.7).
Temp
Urlaub
Auswahl
So/Wi
Anzeige
Heizkreis
Zurück
USER INFORMATION
The set room temperature applies to the currently enabled heating mode,
i.e. day or night mode. You can recognise the currently enabled heating mode
because the green LED illuminates.
6.4.1 For the current operating mode
You are currently in automatic "Day mode" and would like to alter the room
temperature.
(Condition: For this, the programming unit flap must be closed.)
Turn the rotary selector to the required day room temperature (here: "23°C").
The day room temperature is now adjusted to 23 °C. The selected permanent
display will then appear again.
Set room
23°C
Automatic day
20
Logamatic 4211 - Subject to technical modifications.
Standard functions
6
6.4.2 For the operating mode not currently enabled
You may also adjust the room temperature for an operating mode that is not
currently enabled.
For example, you are currently in automatic "Day mode" and would like to alter
the set night temperature.
Hold down "Night mode", and select the required night room temperature with
the rotary selector (here: "16°C").
+
Release "Night mode" key.
Set room
16°C
The night setback temperature is now adjusted to 16 °C. The selected
permanent display will then appear again.
Constant night
AUT
Press "AUT".
The "AUT" LED illuminates; automatic mode is re-enabled.
USER INFORMATION
If you are currently in automatic "Night mode", and you wish to adjust the day
mode, proceed as described above, but instead hold down the "Day mode"
key.
Logamatic 4211 - Subject to technical modifications.
21
6
6.5
Standard functions
Heating DHW
The programming unit also offers you the option of heating DHW in an energyconscious manner. For this purpose, DHW heating can be selected via a time
switch. You can select between the set values for DHW and "OFF", to stop DHW
heating.
To save energy, DHW heating will be stopped outside the programmed times,
i.e. DHW is not heated in night mode.
AUT
DHW heating is factory-set to 60 °C in automatic mode.
Tag
Zeit
Temp
Urlaub
Auswahl
So/Wi
Anzeige
Heizkreis
Zurück
60 °C
1
2
3
05:30
09:00
18:00
21:00
7 747 012 053-17.1RS
Fig. 10
Example: DHW heating
1
Day mode
2
Night mode
3
OFF
We recommend heating the DHW cylinder once in the morning, before central
heating begins, and reheating once in the evening if necessary (see Æ Fig. 10).
USER INFORMATION
The DHW temperature will have fallen below the set value if the green "DHW"
LED illuminates.
22
Logamatic 4211 - Subject to technical modifications.
Standard functions
6
6.5.1 Setting the DHW temperature
RISK OF SCALDING
from hot water.
WARNING!
The DHW cylinder temperature is preset to 60 °C. There is a risk of scalding
from hot water if your heating contractor has set the DHW temperature higher,
or has enabled the "Therm. disinfect" function, and the heating water circuit of
your heating system is not equipped with a thermostatically controlled mixer.
Please note that fittings can also get very hot.
z In such cases, only ever draw off mixed water (hot and cold).
You can change the DHW temperature as follows:
Hold down the "DHW" key, and select the required DHW temperature within the
rotary selector.
+
Release "DHW" key. The newly selected DHW temperature is saved in
approximately 2 seconds. The permanent display will then appear again.
DHW
set
60°C
USER INFORMATION
For thermal disinfection, the DHW will be heated to at least 60 °C once or twice
per week to kill off possible bacteria (e.g. legionella).
Logamatic 4211 - Subject to technical modifications.
23
6
Standard functions
6.5.2 Heating DHW once
If the "DHW" LED illuminates, only a limited amount of hot water remains in the
cylinder. Should you require a larger amount of DHW, proceed as follows:
Press "DHW".
The "DHW" LED flashes, and heating DHW once commences.
DHW
actual
55°C
Subject to the size of the DHW cylinder and the boiler output, DHW will be
available after approximately 10 to 30 minutes. With instantaneous water
heaters or combination boilers, DHW is available almost immediately.
Reheating
24
Logamatic 4211 - Subject to technical modifications.
Extended functions
7
7
Extended functions
The extended functions are explained in this chapter. You need the extended
functions to be able to change the factory settings of your heating system. You
can use the following functions:
– Display the current operating values of your heating system
– Set the time
– Set the date
– Set heating circuits
– Select a heating program
– Set the room temperature for additional heating circuits
The keys for the extended functions are located behind the flap of the MEC2
programming unit.
7.1
Keys for extended functions
4
1
5
2
6
3
7
9
8
7 747 012 073-01.1RS
Fig. 11
Keys for the extended functions
1
Enter the day of the week
2
Enter holidays
3
Select standard display
4
Set the time
5
Change temperature values
6
Summer/winter time adjustment
7
Return to the standard display
8
Select a time switch program
9
Select heating circuits/DHW circuit
Logamatic 4211 - Subject to technical modifications.
25
7
7.2
Extended functions
Controlling the extended functions
The extended functions provide access to a further control level. At this level,
proceed according to the "Push and turn" principle. The control procedure is
always similar:
z Open flap.
Hold the required key down, e.g. the "Time" key, and simultaneously turn the
rotary selector.
+
By turning the rotary selector you modify the values that flash on the display.
Release key. Modified values are saved.
"Back" key
7.3
=
Exit menu.
Displaying operating values
You can display and control the various operating values of the boiler, the
selected heating circuit and the system.
Only the operating values of the selected heating circuit, e.g. heating circuit 0,
are displayed (Æ Chapter 7.6).
AUT
z Open flap.
Turn the rotary selector clockwise without pressing any other key.
Subject to the modules, various of the following operating displays can be called
up:
Heating circ. 0
– Burner and Hours run
Set room
20°C
– Actual heating circuit room temperature
– Set heating circuit room temperature
– Heating circuit operating state
– Actual heating circuit flow temperature
– Actual DHW temperature*
– Set DHW temperature*
– DHW operating mode*
– Operating state – DHW circulation pump and cylinder primary pump*
* Only if a DHW module has been installed.
26
Logamatic 4211 - Subject to technical modifications.
Extended functions
7.4
7
Changing the permanent display
You can determine the permanent display of the programming unit.
The following permanent displays are available:
– Common flow (if MEC2 is installed as a wall mounted unit)
– Outside temp.
– DHW*
AUT
– Time
– Date
* Only if DHW is installed.
Hold the "Display" key down, and select the required permanent display with the
rotary selector (here: "Date").
+
Release "Display" key. The selected permanent display has now been saved.
Common flow
45°C
Date
20.08.2001
Logamatic 4211 - Subject to technical modifications.
27
7
7.5
Extended functions
Setting the date and time
USER INFORMATION
Date and time are preset at the factory.
This function is safeguarded through battery backup, i.e. independent of the
mains power supply.
USER INFORMATION
We recommend leaving the radio clock receiver disabled outside Germany
to prevent the reception of false signals (incorrect time setting).
The MEC2 contains a radio receiver that under normal reception conditions
constantly monitors and corrects the control unit time switch.
When using the MEC2 programming unit, the reception of the radio clock
signal depends on location and position.
Reception of the radio clock signal is indicated by symbol
/
on the display.
Normally, reception is possible within a radius of 1500 kilometers around
Frankfurt/Main [Germany].
AUT
In case of reception problems, please observe the following:
– The radio reception is weaker in rooms surrounded by steel-reinforced walls,
cellars, high-rise buildings etc.
– The distance from sources of interference, such as computer monitors and
TV sets, should be at least 1.5 m.
– The radio reception tends to be better at night than during the day.
You can manually adjust the date and time on the MEC2 if the radio clock signal
is not available in your area.
USER INFORMATION
Well screened boiler rooms may impede the reception of the radio signal. If the
radio clock signal reception is impaired or non-existent, retain the automatic
factory setting according to calendar for summer/winter time adjustment.
28
Logamatic 4211 - Subject to technical modifications.
Extended functions
7
Setting the date
Hold "Weekday" down, and select the required date with the rotary selector
(here: "20").
+
The name of the day automatically changes (here: "Monday") if you set the date
for the day using the rotary selector (here: "20").
Set date
20.08.2001
Release "Weekday" to save your input.
Monday
Press "Weekday" again to re-enter the month.
Press "Weekday" again to enter the year.
The item flashing can be modified with the rotary selector.
Setting the time
Hold down "Time", and select the required time with the rotary selector.
+
The time is set in one-minute steps.
Set time
15:52:58
Release "Time" to save your input.
Logamatic 4211 - Subject to technical modifications.
29
7
7.6
Extended functions
Selecting a heating circuit
Your heating system may be equipped with several heating circuits. If you want
to change a setting, e.g. the heating program, first select the heating circuit
whose setting you want to change.
Subject to the equipment level of your heating system, the following heating
circuits can be selected:
– MEC2 heating circuits (all heating circuits assigned to the MEC2,
Æ Chapter 7.8)
AUT
– Heating circuit 0 – 8
– DHW
– DHW circulation
z Open flap.
+
Hold down "Heating circuit" and select the required heating circuit with the rotary
selector (here: "Heating circ. 2").
Release "Heating circuit" key. The displayed heating circuit is now selected.
Heat. circ. sel.
Heating circ. 2
30
As soon as the heating circuit has been selected, the display returns to the
permanent display.
Logamatic 4211 - Subject to technical modifications.
Extended functions
7.7
7
Adjusting the room temperature for another heating circuit
Your heating system may be equipped with several heating circuits. If you want
to change the room temperature for a different heating circuit than the one last
selected, first select the required heating circuit.
Subject to the equipment level of your heating system, the following heating
circuits can be selected:
– MEC2 heating circuits (all heating circuits assigned to the MEC2,
Æ Chapter 7.8)
AUT
AUT
– Heating circuit 0 – 8
If several heating circuits are assigned to the MEC2, the temperature for these
heating circuits can only be adjusted for all. Otherwise a fault message
"Setting Not possible. MEC heat. circ. select" will appear. In such cases select
"MEC heat. circ.".
z Open flap.
+
Hold down "Heating circuit" and select the required heating circuit with the rotary
selector (here: "Heating circ. 2").
Release "Heating circuit" key. The displayed heating circuit is now selected.
Heat. circ. sel.
Heating circ. 2
Actual room
As soon as the heating circuit has been selected, the display returns to the
permanent display.
19.5°C
Outside temp.
0°C
Logamatic 4211 - Subject to technical modifications.
31
7
Extended functions
Press and hold down "Temperature". First, the heating circuit whose
temperature you want to adjust is displayed. After approximately 2 seconds, the
display will show the currently selected temperature and operating mode.
+
Adjust the temperature with the rotary selector (here: "21°C") for the heating
circuit.
Release the key to save your input.
Set room
21°C
The day room temperature is now adjusted to 21 °C. The selected permanent
display will then appear again.
Automatic day
USER INFORMATION
If you want to adjust the temperature for an operating mode that is not the
current mode, first select the corresponding operating mode (e.g. with the
"Night mode" key). After modifying the temperature, reset the operating mode
to the previous setting.
USER INFORMATION
For heating circuits with individual remote control units (e.g. BFU), you can
adjust the room temperature only via this remote control (Æ see the
instructions for that remote control unit).
32
Logamatic 4211 - Subject to technical modifications.
Extended functions
7.8
7
Heating circuits with MEC2 programming unit
During installation, your heating contractor will determine which heating circuits
are to be controlled by the MEC2 programming unit. These heating circuits will
be designated "MEC heat. circ.".
MEC heat. circ.
The following adjustments made at the MEC2 apply all to "MEC heat. circ."
simultaneously:
– Setting the room temperature
– Setting the summer/winter time adjustment
– Selecting the operating mode
– Setting the holiday function
– Setting the party or pause function
Setting
Not possible
MEC heat. circ.
select
If you have selected an individual heating circuit that is assigned to the MEC2,
and you want to make one of the above adjustments, the fault message "Setting
Not possible. MEC heat. circ. select" will appear.
Select "MEC heat. circ." to program these settings (Æ Chapter 7.6).
Individual heating circuits
The following adjustments can only be implemented for each individual heating
circuit separately:
– Selecting the standard program
– Modifying the standard program by moving switching points
– Inserting or deleting switching points
– Deleting or connecting heating phases
– Creating a heating, DHW or DHW circulation pump program
Time switch
Not possible
Single heat circ
select
If you have selected "MEC heat. circ.", and you want to make one of the above
adjustments, the fault message "Time switch Not possible. Single heat circ
select" will appear.
Enter these settings for each heating circuit separately (Æ Chapter 7.6).
Logamatic 4211 - Subject to technical modifications.
33
7
7.9
Extended functions
Selecting and modifying a heating program
7.9.1 What is a heating program?
A heating program provides automatic changeover between operating modes
(day and night mode) at fixed times. This automatic changeover is effected via
a time switch.
Before you utilise this option, consider the following:
– At what time in the morning should your home be warm? Is this time also
subject to the day of the week?
– Are there days when you don't want to heat?
– From what time in the evening do you no longer need to heat? This may also
depend on the day of the week.
The length of time your heating system takes to heat up individual rooms may
vary. This will be subject to the outside temperature, the building insulation and
the room temperature setback.
The "Optimisation" function of the programming unit calculates the various heatup times. Ask your heating contractor whether this function has been enabled. If
so, all you need to do is enter the times at which your home should be warm.
With the programming unit, Buderus offers eight different, preset heating
programs as standard programs.
1
2
05:30
22:00
7 747 012 053-16.1RS
Fig. 12
Example for a standard program (here: "Family program" from Monday to
Thursday)
1
Day mode
2
Night mode
USER INFORMATION
After commissioning, check whether the selected heating program suits your
lifestyle. If not, several options are available for matching the heating program
to your individual requirements.
34
Logamatic 4211 - Subject to technical modifications.
Extended functions
7
7.9.2 Time switch program for DHW
You may enter your own heating program for DHW heating. This saves you
energy.
Determine the time points so that DHW is only available when one heating circuit
is in standard heating mode (day mode). In this case, DHW is heated 30 minutes
prior to the start of day mode of the first heating circuit so it is available at the
selected time.
A
1
2
B
23:00
1
2
C
06:30
06:00
22:00
1
30 min
2
05:30
23:00
7 747 012 053-19.1RS
Fig. 13
DHW heating begins 30 minutes before day mode of the first heating circuit, and
ends with the beginning of night mode of the last heating circuit.
A Heating circ. 1
B Heating circ. 2
C DHW
1
Day mode
2
Night mode
If you require additional hot water, you may, at short notice, heat DHW with the
"DHW heating once" function (Æ Chapter 6.5.2).
USER INFORMATION
DHW will not be subject to a temperature setback if you operate one heating
circuit in "Constant day" mode, and DHW is being heated "by heat. circs".
USER INFORMATION
DHW will not be heated if you are operating all heating circuits in the "Constant
night" mode and DHW is heated "by heat. circs.".
Logamatic 4211 - Subject to technical modifications.
35
7
Extended functions
7.10 Selecting a standard program
The MEC2 programming unit is equipped with eight different, preset heating
programs that act as standard programs. See the following page for a summary
of the preset times of the standard programs.
Please check which standard program best meets your requirements. First
check the number of switching points, and then the times. The "Family" program
is preset at the factory.
AUT
z Open flap.
z Select a heating circuit (Æ Chapter 7.6).
Hold down "PROG". Initially the heating circuit is displayed for which you want
to select a standard program. Approximately 2 seconds later the designation of
the currently selected standard program will appear.
+
Select the required standard program with the rotary selector (here: "Seniors").
Release "PROG" key. The displayed program is now selected.
Time switch
Program select.
Seniors
The display shows the program designation and the first switching point for the
selected heating program (here: "Senior program").
Senior program
Monday
at 05:30
21°C
Press "Back" to return to the permanent display.
USER INFORMATION
Switching programs are only effective in automatic mode (Æ Chapter 6.3.1).
36
Logamatic 4211 - Subject to technical modifications.
Extended functions
7
7.11 Summary of standard programs
Program designation
ON
OFF
08:30
08:30
23:30
22:00
12:00
12:00
22:00
23:00
06:00
06:00
06:30
07:00
11:30
11:30
23:30
22:00
16:00
15:00
22:00
23:00
Mo – Th
Fr
Sa
Su
06:00
06:00
06:00
07:00
08:00
08:00
23:00
22:00
11:30
11:30
13:00
23:00
"Single"
Mo – Th
Fr
Sa
Su
06:00
06:00
07:00
08:00
08:00
08:00
23:30
22:00
16:00
15:00
22:00
23:00
"Seniors"
Mo – Su
05:30
22:00
"Family"
(factory setting)
"Early morning"
Early shift
"Late evening"
Late shift
"Morning"
Part-time work in the
morning
"Afternoon"
Part-time work in the
afternoon
"Noon"
Noon at home
Weekday
ON
OFF
Mo – Th
Fr
Sa
Su
05:30
05:30
06:30
07:00
22:00
23:00
23:30
22:00
Mo – Th
Fr
Sa
Su
04:30
04:30
06:30
07:00
22:00
23:00
23:30
22:00
Mo – Fr
Sa
Su
06:30
06:30
07:00
23:00
23:30
23:00
Mo – Th
Fr
Sa
Su
05:30
05:30
06:30
07:00
Mo – Th
Fr
Sa
Su
ON
OFF
17:00
22:00
You can enter your own individual program here:
"New"
"Own 1"
Tab. 1
If none of the standard programs suit you, you may alter them, have them changed by your heating
contractor, or enter a new heating program (Æ Chapter 8.2). This will be saved under "Own" and the
number of the heating circuit.
Standard programs ("ON" = day mode, "OFF" = night mode)
Logamatic 4211 - Subject to technical modifications.
37
7
Extended functions
7.12 Modifying the standard program by moving switching points
If the switching points, i.e. the times of a standard program at which the system
changes over between day and night mode, only partially suit you, you may
change them, or ask your heating contractor to change them for you. The
modified standard program is saved under "Own" and the number of the heating
circuit. The heating program memory is available for this.
The following example shows how the switching points of the standard program
"Family" can be changed for the days Monday to Thursday.
AUT
A
1
2
05:30
B
22:00
1
2
05:30 06:30
22:00 23:00
7 747 012 053-15.1RS
Fig. 14
Changing the switching points from 05:30 to 06:30 and from 22:00 to 23:00
(example)
A "Family program"
B New program "Own program 2"
1
Day mode
2
Night mode
z Open flap.
z Select a heating circuit (here: "Heating circ. 2", Æ Chapter 7.6).
Hold down "PROG" and select the required standard program with the rotary
selector.
+
Release "PROG" key.
Time switch
Program select.
Family
The first switching point (Monday, 05:30) appears.
Family program
Monday
at 05:30
21°C
+
38
Hold down "Time", and select the required time with the rotary selector.
Example: "06:30".
Logamatic 4211 - Subject to technical modifications.
Extended functions
7
Release "Time" key. The newly adjusted time for the "ON" switching point is now
saved.
The modified switching point will be saved under the "Own" program and the
number of the heating circuit (here: "2").
Own program 2
Monday
at 06:30
21°C
Continue to turn the rotary selector until the next switching point that you want
to change is displayed.
The "OFF" switching point for Monday appears. Now you can modify the time for
the "OFF" switching point.
+
Hold down "Time", and select the required time with the rotary selector.
Example: "23:00".
Release "Time" key. The newly adjusted time for the "OFF" switching point is
saved.
Next switching point
Continue to turn the rotary selector until the next switching point is displayed.
The next switching point (Tuesday, 05:30) appears.
Also change the following switching points to 06:30 and 23:00. The system will
now heat from 06:30 to 23:00 Monday to Thursday.
Press "Back" to return to the permanent display.
USER INFORMATION
You can change the weekday if you press "Weekday" instead of "Time".
You can change the switching state ("ON"/"OFF") by pressing "Display"
instead of "Weekday" or "Time". The operating mode determines the switching
state: "ON" = day mode, "OFF" = night mode.
z Ensure that an stop point is associated with every start point.
The modified standard program is saved under "Own" and the number of the
heating circuit.
Logamatic 4211 - Subject to technical modifications.
39
7
Extended functions
7.13 Setting the summer/winter time adjustment
In addition to the outside temperature, your control unit considers the ability of
the building to store heat and its thermal insulation (creating from these the
"Adjusted outside temperature" Æ Fig. 15). After a delay, it automatically
changes over between summer and winter mode.
AUT
AUT
Fig. 15
Actual and adjusted outside temperatures compared
1
Current outside temperature
2
Adjusted outside temperature
x
Time
y
Outside temperature
Summer mode
Heating operation is switched off if the "Adjusted outdoor temperature" exceeds
the factory-set changeover threshold of 17 °C.
Summer mode is indicated on the display with symbol
.
DHW heating remains operational.
Press "Day mode" if you want to heat at short notice in summer mode.
AUT
The heating system returns to automatic summer mode if you press "AUT".
Winter mode
DHW and central heating are operational if the "Adjusted outside temperature"
falls below the factory-set changeover threshold of 17 °C.
Setting the automatic summer/winter time adjustment
Select the required heating circuit before calling up the summer/winter time
adjustment. You may select either an individual heating circuit or all circuits
assigned to the MEC2.
z Select a heating circuit (Æ Chapter 7.6).
Example: Heating circ. 2
40
Logamatic 4211 - Subject to technical modifications.
Extended functions
7
Setting the changeover temperature
Hold down "Su/Wi". The display briefly shows the heating circuit. Then turn the
rotary selector to the required changeover temperature, below which you want
to heat (here: "18°C").
+
The display shows the set changeover temperature.
Summer / Winter
Release "Su/Wi" key to save your input.
Summer from
18°C
Setting up constant summer mode
z Select a heating circuit (Æ Chapter 7.6).
Example: Heating circ. 2
+
Hold down "Su/Wi". The display briefly shows the heating circuit. Then turn the
rotary selector to a changeover temperature below 10 °C.
The display shows "Constant summer".
Summer / Winter
Release "Su/Wi" key to save your input.
Your heating system will constantly operate in summer mode.
Constant summer
Setting up constant winter mode
z Select a heating circuit (Æ Chapter 7.6).
Example: Heating circ. 2
+
Hold down "Su/Wi". The display briefly shows the heating circuit. Then turn the
rotary selector to a changeover temperature above 30 °C.
The display shows "Constant winter".
Summer / Winter
Release "Su/Wi" key to save your input.
Your heating system will constantly operate in winter mode.
Constant winter
Logamatic 4211 - Subject to technical modifications.
41
7
Extended functions
7.14 Setting the DHW operating mode
This allows you to change the DHW temperature in the DHW cylinder.
AUT
AUT
z Open flap.
Hold down "Heating circ." and select "DHW" with the rotary selector.
+
Release "Heating circuit" key.
Heat. circ. sel.
DHW
The permanent display will then appear again.
Actual room
19.5°C
Outside temp.
0°C
Select one of the following operating modes for DHW:
– "Const. operation"
The water inside the DHW cylinder is constantly maintained at the set
temperature.
Press "Day mode" to select constant operation. After approximately three
seconds, the permanent display will appear again.
– "Automatic"
30 minutes before the first heating circuit is started, the boiler heats the
DHW cylinder to the set temperature, and stops when the last heating circuit
is switched off (factory setting). Alternatively, you can enter your own DHW
program (Æ Chapter 8.3).
AUT
Press "Automatic" to select automatic mode. After approximately three seconds,
the permanent display will appear again.
– "DHW OFF"
DHW heating is switched off. By pressing "DHW", you will switch heating on
for the duration of "DHW heating once".
Press "Night mode" to stop DHW heating. After approximately three seconds,
the permanent display will appear again.
42
Logamatic 4211 - Subject to technical modifications.
Extended functions
7
7.15 Setting the operating mode for DHW circulation
The DHW circulation pump provides an almost instantaneous supply of DHW to
the draw-off points. For this, the DHW is circulated by a separate DHW
circulation pump twice per hour for three minutes. Your heating contractor can
match this interval to requirements at the service level.
You can modify the operating mode of DHW circulation as follows:
AUT
AUT
z Open flap.
Hold down "Heating circ." and select "DHW circulation" with the rotary selector.
+
Release "Heating circuit" key.
Heat. circ. sel.
DHW circulation
The permanent display will then appear again.
Actual room
19.5°C
Outside temp.
0°C
Select one of the following operating modes for the DHW circulation pump:
– "Const. operation"
The DHW circulation pump will operate at the set interval, i.e. independently
of the heating circuits.
Press "Day mode" to select constant operation. After approximately three
seconds, the permanent display will appear again.
– "Automatic"
30 minutes before the first heating circuit is started, the DHW circulation
pump starts to run at the set interval, and stops when the last heating circuit
is switched off (factory setting). Alternatively, you can enter your own DHW
circulation pump program (Æ Chapter 8.4).
AUT
Press "Automatic" to select automatic mode. After approximately three seconds,
the permanent display will appear again.
– "DHW circ. OFF"
The DHW circulation pump will not be controlled. Pressing "DHW" switches
the DHW circulation pump on for the duration of heating DHW once.
Press "Night mode" to switch off DHW circulation. After approximately three
seconds, the permanent display will appear again.
Logamatic 4211 - Subject to technical modifications.
43
7
Extended functions
7.16 Setting the holiday function
Using the holiday function, you can heat at a lower room temperature if you are
away for a prolonged period.
Example:
If you are on holiday for the next five days and want to heat less during that time,
e.g. heating circ. 2 with a reduced room temperature of 12 °C.
USER NOTE
As the holiday function is enabled immediately after completing your entry, you
should only enter this function on the day of your departure.
z Select a heating circuit (Æ Chapter 7.6).
Example: Heating circ. 2
Enter holiday function:
AUT
Hold "Holiday" down, and select the required number of days with the rotary
selector (here: "5").
+
The display shows "5".
Holiday days
5
Release "Holiday" key to save your input.
Set room
17°C
USER INFORMATION
The "Set room" display only appears if the "Hold room temp" holiday reduction
type or "Reduced" has been set by the heating contractor.
Hold "Temp" down, and select the required temperature with the rotary selector
(here: "12°C").
+
The display shows 12 °C.
Holiday days
5
Release "Temp" key to save your input.
The holiday function is enabled immediately after entry.
Set room
12°C
44
Logamatic 4211 - Subject to technical modifications.
Extended functions
7
You can cancel the holiday function any time by calling it up, as described
above, and by setting the number of holiday days to "0".
USER INFORMATION
DHW heating and DHW circulation will be switched off automatically if DHW
is heated subject to the heating circuits ("Program select. by heat. circs",
Æ Chapter 8.3), and all heating circuits are set to holiday mode. You cannot
enter a separate DHW holiday function.
USER INFORMATION
A separate DHW holiday function can be entered if DHW is produced
according to a separate time program ("Program select. own DHW",
Æ Chapter 8.3). The DHW circulation pump is switched off automatically
during the DHW holiday function.
Logamatic 4211 - Subject to technical modifications.
45
7
Extended functions
7.17 Interrupting and continuing the holiday function
You may interrupt your holiday program at any time and provide heat according
to the set day and night temperatures.
Only the "AUT" LED illuminates if a heating circuit is in holiday mode.
AUT
AUT
Interrupting the holiday function
Press "Day mode".
The display shows "Constant day".
Set room
21°C
You may interrupt the holiday function any time by pressing "Day mode". In this
case the system heats according to the set room temperature (Æ Chapter 6.4).
Constant day
Continuing the holiday function
AUT
Press "AUT" to continue the interrupted holiday function.
Interrupting the holiday function
Press "Night mode".
The display shows "Constant night".
Set room
17°C
Constant night
You may interrupt the holiday function at any time by pressing "Night mode".
In this case the system heats according to the set night temperature
(Æ Chapter 6.4).
Continuing the holiday function
AUT
46
Press "AUT" to continue the interrupted holiday function.
Logamatic 4211 - Subject to technical modifications.
Extended functions
7
7.18 Setting the party function
This function only applies to heating circuits to which the MEC2 has been
assigned as a remote control unit ("MEC heat. circ.") All heating circuits without
an MEC2 continue to operate normally.
Enter the length of time the system should only heat to the preset room
temperature.
Example:
You have a party and want to heat for the next four hours to the preset room
temperature.
Hold down "Day mode", and simultaneously open the flap of the MEC2.
"Party function" is enabled. Hold "Day mode" down, and turn the rotary selector
until the required number of hours is displayed (here: "4").
+
The display shows the party function together with the set number of hours.
Party function
4 hours
Release "Day mode" key.
The party function starts immediately. After the set time has expired, the heating
system returns to automatic heating mode.
If you want to cancel the party function, call up party function as described above
and turn the rotary selector to "0".
7.19 Setting the pause function
This function only applies to heating circuits to which the MEC2 has been
assigned as a remote control unit ("MEC heat. circ."). All heating circuits without
an MEC2 continue to operate normally.
Enter the length of time the system should heat to the preset room temperature.
Example:
You are about to leave your home for three hours and would like to heat less
whilst you are away.
Hold down "Night mode", and simultaneously open the flap of the MEC2. The
pause function is enabled. Continue to hold down "Night mode", and turn the
rotary selector until the required number of hours is displayed (here: "3").
+
The display shows the pause function together with the set number of hours.
Pause function
3 hours
Release "Night mode" key.
The pause function starts immediately. After the set time has expired, the
heating system returns to automatic heating mode.
If you want to cancel the pause function, call up pause function as described
above and turn the rotary selector to "0".
Logamatic 4211 - Subject to technical modifications.
47
7
Extended functions
7.20 Room temperature matching
USER INFORMATION
This function is only available if the MEC2 is fitted within the living space.
If the room temperature shown on the display varies from the actual
temperature measured with a thermometer, the display value can be adjusted
using "Calibration MEC".
The factory setting is 0 °C. The possible correction range is between +5 °C and
–5 °C.
Example:
Displayed room temperature 22 °C, actual room temperature 22.5 °C
z Open flap
+
Simultaneously press and then release "Display" and "Temp".
The display shows "Calibration MEC".
Calibration MEC
Room temperature
Correction
0.0°C
+
Hold down "Temp" and turn the rotary selector to the required value
(here: "0.5°C").
The display shows the set value.
Calibration MEC
Room temperature
Correction
0.5°C
Release "Temp" key to save your input.
Press "Back" to return to the permanent display.
The display shows the corrected temperature (22.5°C).
48
Logamatic 4211 - Subject to technical modifications.
Extended functions
7
7.21 Automatic maintenance message
Note
Maint. message
maint.
If your heating contractor has (with your agreement) enabled the "automatic
maintenance message", the maintenance message "Note maint. message" is
displayed at a predetermined time (on a particular date or after so many hours
run).
z Open flap.
Turn the rotary selector.
You will see either "maint. after Date required" or "maint. after Hours run
required".
maint. after
Date
required
z Notify your heating contractor to schedule the inspection and maintenance
work.
Where fitted, the Logamatic telecontrol system enables the maintenance
message to be transmitted automatically to your mobile, PC or fax machine.
maint. after
Hours run
required
USER INFORMATION
The automatic maintenance message remains active until it is reset by your
heating contractor.
Logamatic 4211 - Subject to technical modifications.
49
8
8
Additional programming options
Additional programming options
This chapter is intended to provide more detailed information to those of our
customers who would like to familiarise themselves further with the functions of
their heating system.
The following pages will explain how to change a standard program, if none of
the preset standard programs (Æ Chapter 7.11) match your lifestyle.
You will learn how to create a new heating program which accurately matches
your personal circumstances.
8.1
Modifying the standard program by inserting/deleting switching points
8.1.1 Inserting switching points
You can interrupt heating phases by inserting switching points
(details: Weekday/time/temperature) into an existing heating program.
Example:
AUT
The standard "Family" program provides constant heating on Fridays from 05:30
until 23:00. Insert two new switching points if, for example, you do not want to
heat on Fridays from 10:00 to 13:00.
Your modified program will be saved under the program name "Own" and the
number of the heating circuit.
A
1
2
23:00
05:30
B
1
2
05:30 10:00
13:00
23:00
7 747 012 053-14.1RS
Fig. 16
Inserting switching points to interrupt a heating phase
A Family program
B New program "Own program 2"
50
1
Day mode
2
Night mode
Logamatic 4211 - Subject to technical modifications.
Additional programming options
8
z Select a heating circuit (Æ Chapter 7.6).
Example: Heating circ. 2
z Select the standard program for the chosen heating circuit (Æ Chapter 7.10)
(here: "Program select. Family").
Release "Prog" key to enable the selected standard program (here: "Family
program").
The display shows the selected standard program.
Family program
Monday
at 05:30
21°C
Turn the rotary selector once anti-clockwise, until "New switch.point" is
displayed.
The display shows the blank screen "New switch.point" for the new switching
point.
New switch.point
-------------at ---
---Hold down "Weekday" and turn the rotary selector to the required day
(here: "Friday").
+
You can select days individually or in blocks:
New switch.point
– Monday – Thursday
Friday
at ---
– Monday – Friday
----
– Saturday – Sunday
– Monday – Sunday
Release "Weekday" to save your input.
Hold "Time" down, and select the required time with the rotary selector
(here: "10:00").
+
"Friday at 10:00" is now set as the new switching point.
New switch.point
Friday
at 10:00
Release "Time" to save your input.
---Hold "Temp" down, and select the required temperature with the rotary selector
(here: "17°C").
+
The display shows the set value.
New switch.point
Friday
at 10:00
Release "Temp" key to save your input.
17°C
Logamatic 4211 - Subject to technical modifications.
51
8
Additional programming options
USER INFORMATION
You cannot freely enter any temperature here. Only the factory-set day and
night temperatures are available, which you can, however, modify yourself
(Æ Chapter 6.4).
USER INFORMATION
Only after all three details (day/time/temperature) have been defined for the
new switching point will it be automatically saved under "Own program" and the
heating circuit number (here: "2"). The saving process is not shown on the
display. The display shows the blank screen "New switch.point" for the next
switching point.
To enter the next switching point (e.g. "Friday, 13:00, 21°C"), simply repeat the
procedure detailed above.
New switch.point
-------------at ---
---Press "Back" to return to the permanent display.
52
Logamatic 4211 - Subject to technical modifications.
Additional programming options
8
8.1.2 Deleting switching points
Example:
In the "Family program", the switching point "Monday 22:00" is to be deleted for
heating circuit 2.
Your modified program will be saved under the program name "Own" and the
number of the heating circuit.
AUT
A
1
2
05:30
B
22:00
1
2
05:30
7 747 012 053-13.1RS
Fig. 17
Deleting a switching point
A "Family program"
B New program "Own program 2"
1
Day mode
2
Night mode
z Select a heating circuit (Æ Chapter 7.6).
Example: Heating circ. 2
z Select the standard program for the chosen heating circuit
(Æ Chapter 7.10).
Example: Family program
Family program
Monday
at 05:30
The first switching point (start point): "Monday at 05:30" at "21°C" will be
displayed.
21°C
Turn the rotary selector to the switching point you want to delete
(here: "22:00").
The switching point to be deleted is displayed.
Family program
Monday
at 22:00
17°C
+
Simultaneously press and hold "Holiday" and "Display".
Logamatic 4211 - Subject to technical modifications.
53
8
Additional programming options
+
Family program
Delete
Monday
22:00
The bottom line shows eight blocks that are deleted in one-second intervals from
left to right. The switching point has been deleted when no blocks are left.
The deleting process will be terminated if you release the keys prematurely.
Simultaneously release "Holiday" and "Display" to save your input.
The display shows the next switching point.
The new program that has been modified by the deletion is saved under
"Own program" and the relevant heating circuit number (here: "2").
Own program 2
Monday
at 17:00 h
21°C
21
You can call up your new program by pressing "Prog" and turning the rotary
selector (Æ Chapter 7.10).
Press "Back" to return to the permanent display.
54
Logamatic 4211 - Subject to technical modifications.
Additional programming options
8
8.1.3 Deleting a heating phase
A heating phase consists of two switching points - a start and a stop point. If you
wish to delete a heating phase, both switching points must be deleted.
Example:
In the "Midday program" for heating circuit 2, you want to delete the Monday
heating phase from 11:30 to 13:00 to create one single heating pause from 8:00
to 17:00.
AUT
Your modified program will be saved under the program name "Own" and the
number of the heating circuit.
A
1
2
B
06:00 08:00 11:30 13:00 17:00
22:00
1
3
2
06:00 08:00
17:00
22:00
7 747 012 053-12.1RS
Fig. 18
Deleting a heating phase
A "Midday program"
B New program "Own program 2"
1
Day mode
2
Night mode
3
delete
z Select a heating circuit (Æ Chapter 7.6).
Example: "Heating circ. 2"
z Select the standard program for the chosen heating circuit
(Æ Chapter 7.10).
Example: "Midday program"
Midday program
Monday
at 06:00
The first switching point (start point): "Monday at 06:00" at "21°C" will be
displayed. The displayed temperature depends on the set room temperature.
21°C
Logamatic 4211 - Subject to technical modifications.
55
8
Additional programming options
Turn the rotary selector to the start point of the heating phase you want to delete
(here: "11:30").
Midday program
Monday
at 11:30
21°C
Hold down "Time" and turn the rotary selector to the stop point of the heating
phase you want to delete (here: "13:00").
+
If you have selected the stop switching point of the heating phase you want to
delete, the bottom line will show eight blocks that are deleted in one-second
intervals from left to right. The heating phase has been deleted when no blocks
are left.
Switch. period
is deleted
The deleting process will be terminated if you release the "Time" key
prematurely or turn the rotary selector back. In this case all switching points for
the heating phase remain active.
Release "Time" to save your input.
The display shows the next switching point.
The new program that has been modified by the deletion is saved under
"Own program" and the relevant heating circuit number (here: "2").
Own program 2
Monday
at 17:00
21°C
21
You can call up your new program by pressing "Prog" and turning the rotary
selector (Æ Chapter 7.10).
Press "Back" to return to the permanent display.
56
Logamatic 4211 - Subject to technical modifications.
Additional programming options
8
8.1.4 Connecting heating phases
A heating phase consists of two switching points – a start and a stop point. To
connect two consecutive heating phases, place the stop point of the first heating
phase onto the start point of the next phase.
Example:
Starting from the "Midday program" for heating circuit 2, you want to join the
Monday heating phase from 11:30 to 13:00 to the heating phase 17:00 to 22:00.
In other words you want to heat continually from 11:30 until 22:00.
AUT
Your modified program will be saved under the program name "Own" and the
number of the heating circuit.
A
1
2
B
06:00 08:00 11:30 13:00 17:00
22:00
1
2
3
06:00 08:00 11:30
22:00
7 747 012 053-11.1RS
Fig. 19
Connecting two heating phases
A "Midday program"
B New program "Own program 2"
1
Day mode
2
Night mode
3
Turn from 13:00 to 17:00
z Select a heating circuit (Æ Chapter 7.6).
Example: Heating circ. 2
z Select the standard program for the chosen heating circuit
(Æ Chapter 7.10) (here: "Midday program").
The first switching point (start point): Monday at 06:00 at 21 °C will be displayed.
Midday program
Monday
at 06:00
21°C
Turn the rotary selector to the stop point of the first heating phase you want to
connect with another (here: "13:00").
The display shows the stop point to be connected.
Midday program
Monday
at 13:00
17°C
Logamatic 4211 - Subject to technical modifications.
57
8
Additional programming options
Hold down "Time" and turn the rotary selector clockwise, until the start point of
the second heating phase, i.e. the next consecutive heating phase, is displayed,
which you wish to combine with the first heating phase (here: "17:00").
+
If you have selected the start point of the next consecutive heating phase, the
bottom line will show eight blocks, which are deleted in one-second intervals
from left to right. When no blocks are left both heating phases have been
combined.
Switch. period
is combined
The deleting process will be terminated if you release the "Time" key
prematurely or turn the rotary selector back. In this case all switching points for
the heating phase remain active.
Release "Time" to save your input.
The new program that has been modified by the connection process is saved
under "Own program" and the heating circuit number (here: "2").
Own program 2
Monday
at 22:00
17°C
You can call up your new program by pressing "Prog" and turning the rotary
selector (Æ Chapter 7.10).
Press "Back" to return to the permanent display.
58
Logamatic 4211 - Subject to technical modifications.
Additional programming options
8.2
8
Creating a new heating program
You may enter up to 42 switching points per week and heating circuit to create
a new heating program. A single switching point comprises three details:
Weekday, time and temperature.
The newly created program will be saved under "Own program" and the relevant
heating circuit number.
AUT
Example:
Monday – Friday,
from 05:00 21 °C, from 21:00 17 °C
Saturday – Sunday,
from 09:30 21 °C, from 23:30 17 °C
A
21 °C
1
2
05:00
21:00
21 °C
1
B
17 °C
2
09:30
23:30
17 °C
7 747 012 053-10.1RS
Fig. 20
New heating program
A New heating program "Own program 2"
Monday – Friday
B Saturday – Sunday
1
Day mode
2
Night mode
Logamatic 4211 - Subject to technical modifications.
59
8
Additional programming options
z Select a heating circuit (Æ Chapter 7.6).
Example: Heating circ. 2
z Select the standard program "Program select. new" for this heating circuit
(Æ Chapter 7.10).
The display shows the blank screen "New switch.point".
New switch.point
-------------at ---
Enter the first switching point (Monday – Friday, 05:00, 21 °C)
----
You can select days individually or in blocks:
– Monday – Thursday
– Monday – Friday
– Saturday – Sunday
– Monday – Sunday
Hold down "Weekday" and select the required day or block with the rotary
selector (here: "Monday-Friday").
+
Release "Weekday" to save your input.
New switch.point
Monday-Friday
at ---
---Hold "Time" down, and select the required time with the rotary selector
(here: "05:00").
+
The display shows the new switching point.
New switch.point
Monday-Friday
at 05:00
Release "Time" to save your input.
----
+
New switch.point
Hold "Temp" down, and select the required temperature with the rotary selector
(here: "21°C").
You cannot freely enter any temperature here. Only the factory-set day and night
temperatures are available, which you can, however, modify yourself
(Æ Chapter 6.4).
Monday-Friday
21°C
at 05:00
Release "Temp" key to save your input.
60
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Additional programming options
New switch.point
-------------at ---
----
8
Only after all three details (day/time/temperature) have been set for the new
switching point will it be automatically saved under "Own program" and the
heating circuit number (here: "2"). The saving process is not shown on the
display. The display shows the blank screen "New switch.point" for the next
switching point.
z Enter the second switching point (Monday – Friday, 21:00, 17 °C).
z Enter the third switching point (Saturday – Sunday, 09:30, 21 °C).
z Enter the fourth switching point (Saturday – Sunday, 23:30, 17 °C).
To enter the second to fourth switching points, you only need to repeat the
previous steps.
Only after all switching points have been correctly entered, press "Back" to
return to the permanent display.
Your heating program will now operate according to your "Own program". You
can call up your new "Own program" by pressing "Prog" and turning the rotary
selector.
Logamatic 4211 - Subject to technical modifications.
61
8
8.3
Additional programming options
Creating a new DHW program
You may operate DHW heating either according to the factory settings
"Program select. by heat. circs" or according to your own switching program
"Program select. own DHW".
USER INFORMATION
With the factory setting "Program select. by heat. circs", DHW heating begins
30 minutes prior to the first switching point of all heating circuits associated with
this control unit, and ends when the last heating circuit is stopped.
If DHW is to be heated independently of the heating circuits, you can enter your
own new DHW program as follows:
Example:
On all weekdays DHW should be heated from 06:30 until 09:00.
z Select a heating circuit (Æ Chapter 7.6).
(here: "DHW")
z Select a program for the heating circuit "DHW" (Æ Chapter 7.10).
(here: "Program select. new")
The display shows the blank screen "New switch.point" for the new switching
point.
New switch.point
-------------at ---
---z Enter the switching points (Æ Chapter 8.2).
USER INFORMATION
Only after all three details (day/time/temperature) have been defined for the
new switching point will it be automatically saved under "Own program DHW",
and the heating circuit selection "DHW". The saving process is not shown on
the display. The display shows the blank screen "New switch.point" for the next
switching point. Repeat this process for all required switching points.
DHW heating will now operate according to your "Own program DHW". You can
call up your new "Own program DHW" by pressing "Prog" and turning the rotary
selector (Æ Chapter 7.6).
62
Logamatic 4211 - Subject to technical modifications.
Additional programming options
8.4
8
Creating a new DHW circulation pump program
You can operate the DHW circulation pump either according to the factory
settings "Program select. by heat. circs" or according to your own new switching
program "Program select. own CP".
USER INFORMATION
With the factory setting "Program select. by heat circs", the DHW circulation
pump will automatically start 30 minutes before the first switching point of all
heating circuits associated with this control unit, and end when the last heating
circuit is stopped.
If your circulation pump should work independently of the heating circuits, you
can enter your own new DHW circulation pump program as follows:
Example:
The DHW circulation pump is to run on all weekdays from 06:30 to 09:00.
z Select a heating circuit (Æ Chapter 7.6).
(here: "DHW circulation")
z Select a program for the heating circuit "DHW circulation" (Æ Chapter 7.10).
(here: "Program select. new")
The display shows the blank screen "New switch.point" for the new switching
point.
New switch.point
-------------at ---
---z Enter the switching points (Æ Chapter 8.2).
USER INFORMATION
Only after all three details (day/time/temperature) have been defined for the
new switching point will it be automatically saved under "Own program CP" and
the heating circuit number "DHW circulation". The saving process is not shown
on the display. The display shows the blank screen "New switch.point" for the
next switching point. Repeat this process for all required switching points.
Your DHW circulation pump will now operate according to your "Own program
CP". You can call up your new "Own program CP" by pressing "Prog" and
turning the rotary selector.
Logamatic 4211 - Subject to technical modifications.
63
9
9
Modules and their functions
Modules and their functions
All modules are shown here that are or can be fitted in
your Logamatic 4211 control unit.
Logamatic
4211
MEC2 programming unit
O
CM431 controller module
ZM422 central module
Burner controller, 1 heating circuit + 1 DHW circuit
O
FM441 function module
1 heating circuit + 1 DHW circuit
–
FM442 function module
2 heating circuits
X
FM443 function module
Solar circuit
X
FM444 function module
Alternative heat source
X
FM445 function module
LAP/LSP (primary system)
X
FM446 function module
EIB interface
X
FM448 function module
Central fault message
X
FM426 auxiliary module
Aux. high limit safety cut-out (STB)
X
FM458 function module
Strategy module
–
Module
Tab. 2
O
Standard equipment level and optional modules
O = Standard equipment level
X = Accessory
– = Combination/installation not possible
Along with the ZM422 central module, which is part of
the standard equipment level of the Logamatic 4211
control unit, the FM442 will be described on the following
pages.
64
The MEC2 preset menus in these operating instructions
relate to these modules.
All other modules are explained in separate technical
module documentation.
Logamatic 4211 - Subject to technical modifications.
Modules and their functions
9.1
9
ZM422 central module (standard equipment level)
The ZM422 module is part of the basic equipment of the
Logamatic 4211 control unit. The switches on the
module are only provided for service and maintenance
functions.
If the switches are not set to automatic, a corresponding
message appears on the MEC2 programming unit and
illuminates.
fault indicator
0
USER INFORMATION
Never use the switches to shut down the
heating system during temporary absence.
Z
Use the holiday function for this purpose
(Æ chapter 7.16).
L
The control functions remain operational in manual
mode.
Burner function
Switch for burner
2
USER INFORMATION
In standard mode, the switch should be set
to "AUT".
Fig. 21
Positions 0, manual and max I + II are special settings
reserved for heating contractors.
Display
ZM422
0
The burner may be directly controlled with the switch.
General fault;
e.g. on-site faults, sensor faults,
external faults,
wiring faults, internal module faults, manual
mode.
These fault messages appear
as plain text on the
MEC2 programming unit.
LEDs for burner functions
Display
9
Burner fault
Display
A
Burner operational
Display
U
V
Modulation output is increased/2. Stage
operational
Modulating output is lowered
Display
LEDs for heating circuit 0 and DHW functions
Display
Display
Display
Display
Logamatic 4211 - Subject to technical modifications.
1
8
8L
8Z
Boiler circuit 0 in summer mode
Heating circuit 0 or boiler pump operational
Cylinder primary pump operational
DHW circulation pump enabled
65
Modules and their functions
9
3
:
As the base load, only the first stage will be
enabled for single and two-stage burners.
The second stage is at zero volts. The burner
servomotor cannot be reversed. For
modulating burners, the burner output can be
infinitely increased using 5 and infinitely
reduced using 6.
AUT:
The burner operates in automatic mode.
0:
The burner is switched OFF. Except when
.
the burner emergency switch is set to
max I+II: The burner operates continuously at
maximum output.
4
Heating circuit and DHW function
Heating circuit and DHW switch
B
USER INFORMATION
In standard mode, the switch should be set
to "AUT".
The positions 0 and manual are special settings
reserved for heating contractors only.
3
Heating circuit 0 or boiler pump and cylinder
primary pump are switched on.
AUT:
Heating circuit 0 or boiler circuit and DHW
circuit operate in automatic mode.
0:
Only heating circuit 0 or boiler pump, cylinder
primary pump and DHW circulation pump are
switched off.The control functions continue to
operate.
Q
"Flue gas test" (explanation Æ chapter 10).
Current functions are indicated by LEDs.
66
Logamatic 4211 - Subject to technical modifications.
Modules and their functions
9.2
9
FM442 function module (accessory)
The FM442 module regulates two independent heating
circuits with mixer. Several of these modules can be
used in one control unit.
The switches on the module only have service and
maintenance functions and only affect 230 V outputs.
If the switches are not set to automatic, a corresponding
message appears on the MEC2 programming unit, and
illuminates.
fault indicator
USER INFORMATION
Never use the switches to shut down the
heating system during temporary absence.
Use the holiday function for this purpose
(Æ Chapter 7.16).
The control functions remain operational in manual
mode.
Fig. 22
Display
Heating circuit function
Heating circuit switch
e.g. for heating circuit 1 and 2
USER INFORMATION
In standard mode, set the switches to
"AUT".
The positions 0 and 3 (manual mode) are special
settings reserved for heating contractors only.
FM442
General fault;
e.g. on-site faults, sensor faults,
external faults,
wiring faults, internal module faults,
manual mode.
The fault messages appear
as plain text on the
MEC2 programming unit.
LEDs for the following functions:
Display
"Mixer opens" (hotter)
Display
"Mixer closes" (colder)
Display
Heating circuit in summer mode
Display
Heating circuit pump operational
3
The heating circuit pump is switched on. The
mixer is switched volt-free and can be manually
operated.
AUT: The heating circuit operates in automatic mode.
0:
The heating circuit pump is switched off. The
mixer is switched volt-free. The control functions
remain active.
Current functions are indicated by LEDs.
Logamatic 4211 - Subject to technical modifications.
67
10
Boiler flue gas test
10 Boiler flue gas test
RISK OF SCALDING
WARNING!
During the flue gas test, the water can reach a temperature in excess of 60 °C.
This creates a risk of scalding at the draw-off points.
z Only draw off mixed hot and cold water during or just after a flue gas test.
Note that when mono-lever mixer taps are in their usual position, the water
drawn may be too hot.
z Never draw off hot water only when using twin-lever mixer taps.
USER INFORMATION
Observe the relevant national requirements regarding limiting the flue gas
losses of your heating system.
z Arrange an annual flue gas test.
The flue gas test is started at the boiler (Æ see technical boiler documentation).
Fig. 23
1
ZM422
ZM422 module
"Flue gas test" key
Q on ZM422 module.
The control unit must be switched on.
z Hold down "Flue gas test" for several seconds to start the flue gas test.
The flue gas test lasts 30 minutes and is indicated on the display. During the flue
gas test, the displays
for faults and
for summer mode will flash
alternately. The control unit automatically reverts to its previous operating mode
when the test has been completed.
0
z Press "Flue gas test"
1
Q again to terminate the flue gas test.
During the flue gas test the MEC2 will show the display on the left.
Flue g.test act.
Boiler temp.
75°C
68
Logamatic 4211 - Subject to technical modifications.
Troubleshooting
11
11 Troubleshooting
Have your heating contractor remedy any faults
immediately.
All system faults are displayed on the MEC2
programming unit.
Report the fault by telephone to your heating contractor.
Where necessary, set the module switches according to
the instructions in Chapter 12.
Provided your control unit is equipped with the above
modules, the following faults may be reported:
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Burner fault boiler 1
Boiler temperature sensor
Outside temperature sensor
Heating circuit flow sensor
heating circuit 1 – 4 (if installed)
DHW temperature sensor
Boiler remains cold
DHW stays cold
DHW warning
Remote control no communication with
heating circuit 0 – 4 (if installed)
thermal disinfection
Heating circuit 0 – 4 (if installed) pump fault
DHW pump fault
DHW inert anode fault
Safety equipment fault
No connection to BUS system
Address used more than once
Boiler 1 no connection
External boiler fault
Flue gas sensor fault
Flue gas temperature exceeded
Address conflict slot 1 – 2 (if installed)
Incorrect module slot 1 – 2 (if installed)
Unknown module slot 1 – 2 (if installed)
Function module not connected
No master control unit installed
Heating circuit X in manual mode
DHW in manual mode
Burner in manual mode
Logamatic 4211 - Subject to technical modifications.
69
11
Troubleshooting
11.1 Simple troubleshooting
If no fault messages are displayed on the control
unit in spite of cool rooms or cool DHW, there may
be an incorrect setting.
Observation
Possible cause(s)
Measure
– ON/OFF switch set to "OFF".
– ON/OFF switch set to
"ON".
– No power supply.
– Check mains electrical
fuse.
Control unit remains dark or does
not function
– Heating system
emergency stop switch
set to "ON".
MEC2 display dark
Room cool
– MEC2 incorrectly plugged in (contact
problems).
– Fit MEC2 correctly.
– Actual room temperature for the
corresponding heating circuit is
incorrectly displayed.
– Check the heating circuit
assignment.
– Control unit operates in setback mode.
– Check time and heating
program, and modify if
required.
– Set room temperature too low.
– Correct set room
temperature.
– DHW supply runs too long.
– Check DHW heating.
– Heat sources deliver insufficient heating
energy or are shut down.
– Check heat source.
– Room temperature sensor is incorrectly
adjusted.
– Sensor adjustment.
– DHW is set to the wrong temperature.
– Correct the DHW
temperature setting.
– Switching program is incorrectly set up.
– Re-program the switching
program.
– External heat sources supply insufficient
heating energy.
– Check heat source.
DHW cool
DHW cool
(if DHW is heated by external heat
source)
Tab. 3
70
Simple troubleshooting
Logamatic 4211 - Subject to technical modifications.
Troubleshooting
11
11.2 Troubleshooting
Fault
Effect
Remedy
Burner fault
– Central heating stays
cold.
– Reset the burner as described in the boiler or burner
documentation.
– Central heating
sometimes stays cold.
– Check whether the thermostat is set to AUT.
– Check whether fuel is available.
If this does not work:
– Set burner emergency switch on the control unit to
manual mode.
Boiler remains cold
– Set the burner switch on the ZM422 module to max/I
+II, and set the boiler water temperature using the
thermostat.
– Notify your heating contractor.
– DHW sometimes stays
too cold.
DHW temperature not
rising
– Check whether the thermostat is set to AUT.
If this does not work:
– Set the DHW and heating circuit switch on the
ZM422 module to manual.
– Notify your heating contractor.
– Central heating stays
cold.
– Check whether the boiler is completely filled with
water.
– Check whether the boiler is under at least 1 bar
pressure.
If this is the case:
Safety chain has
responded
– Reset the high limit safety cut-out by removing the
domed nut and pressing the reset button located
below.
If this does not work:
– Notify your heating contractor.
Remote control
fault
Boiler sensor fault;
Outside temperature
sensor fault;
Flow sensor fault
DHW sensor fault
Tab. 4
– The control unit works
with the last values set on
the remote control.
– Notify your heating contractor.
– The heating system may
heat with higher
temperatures to
safeguard the heat
supply.
– Consult your heating contractor.
– If the DHW sensor is
faulty, water is not heated
for safety reasons.
– Notify your heating contractor.
– Tell your heating contractor which temperature
sensor is faulty.
Troubleshooting
Logamatic 4211 - Subject to technical modifications.
71
11
Troubleshooting
Fault
Heating circuit X in
manual mode;
Effect
Remedy
– Depending on switch
positions, pumps,
servomotors/actuators,
etc. will be operated
manually.
– The switches were set to manual (for maintenance
purposes or to remedy a fault).
– Return the switches to AUT when the fault has been
remedied.
DHW in manual mode;
Burner in manual mode
Tab. 4
72
– The control functions
continue to operate in
manual mode, but have
no effect on the system.
Troubleshooting
Logamatic 4211 - Subject to technical modifications.
Operation in the event of a fault
12
12 Operation in the event of a fault
RISK TO LIFE
from electric shock.
WARNING!
z Never open the control unit.
z In an emergency, switch off the control
unit (e.g. with the heating system
emergency stop switch) or isolate the
heating system from the mains supply
by removing the main fuse.
z Arrange for your heating contractor to
rectify any heating system faults
immediately.
SYSTEM DAMAGE
CAUTION!
If an underfloor heating system is
installed: Before operating your heating
system manually, check the temperature
settings of the temperature limiter on the
boiler. If the temperature is set incorrectly,
the underfloor heating system could
overheat.
switches are provided for manual mode on the control
unit and on the modules.
In position 3 the relevant pump is started. The mixers
remain volt-free and can be manually adjusted.
12.1 Emergency mode
If the electronics fail, the control unit can operate in
emergency mode. In emergency mode, all pumps
continue to run and the mixers are volt-free. They can be
set manually. In such cases, notify your heating
contractor.
Logamatic 4211 - Subject to technical modifications.
73
12
Operation in the event of a fault
12.2 Heating with manual override
For emergency operation, switches are provided on the
control unit and on the modules. In position 3 the
relevant pump is started. The mixers stay at zero volts
and should be manually adjusted.
Before making any adjustments for manual mode check
the settings on the various modules for possibly
incorrect settings.
If the control system indicates a fault, you can
temporarily run your heating system manually.
Fig. 24
Heating with manual override
1
Module switch
2
Boiler water thermostat
3
Burner emergency operation switch
4
ON/OFF switch
z To safeguard heat supply in the event of a fault, set
the module switches (Æ Fig. 24, [1]) to 3.
z Set the boiler water thermostat (Æ Fig. 24, [2]) to
60 °C – 90 °C, in case of DHW failure to 60 °C.
W
z Set burner emergency switch (Æ Fig. 24, [3]) to
.
Burner stage 1 will always be directly controlled. The
setting for burner stage 2 must be made using the
switch on the module.
z Set the ON/OFF switch (Æ Fig. 24, [4]) on the control
.
unit to
R
74
Logamatic 4211 - Subject to technical modifications.
Operation in the event of a fault
Fault
Settings for emergency operation
ON/OFF switch
Switch heating circuit
and DHW ZM422
Boiler water
thermostat
Switch, heating circuit
module
FM442
Central heating failed
Heating circuits failed
R
AUT
60 °C – 90 °C
3
DHW heating failed
Heating circuits supplied normally
R
3
60 °C
AUT
Boiler operation failed
R
3
90 °C
AUT
Tab. 5
12
Settings for emergency operation
Manually disconnect the heating circuit mixer and
position towards "Open" or "Closed" (prevent reengagement) so that the required room temperature is
achieved. To prevent the DHW freezing inside the
heating system, never fully close the heating circuit
mixer.
In case of faults, immediately notify your heating
contractor who will guarantee a professional service.
It is helpful for your heating contractor if you can provide
precise details about the fault.
Logamatic 4211 - Subject to technical modifications.
75
13
Setup report
13 Setup report
Operating values
Input range
Factory settings
Setting
Family
Early morning
Late evening
Morning
Afternoon
Program selection
Family
Noon
Single
Seniors
New
DHW
30 °C – 60 °C
60 °C
Summer/winter time
adjustment
10 °C – 30 °C
constant summer
constant winter
17 °C
Day room temperature
11 °C – 30 °C
21 °C
Night room temperature
2 °C – 29 °C
17 °C
Holiday room temperature
10 °C – 30 °C
17 °C
thermal disinfection
Yes/No
No
Assignment of heating circuits
As part of the commissioning process, your heating
contractor will assign the individual heating circuits of
your heating system, e.g. heating circuit 1= "l.h. side of
ground floor".
Heating circ.
Allocation
Heating circ. 0
Heating circ. 1
Heating circ. 2
Heating circ. 3
Heating circ. 4
76
Logamatic 4211 - Subject to technical modifications.
Keyword index
14
14 Keyword index
A
Adjusted outside temperature . . . . . . . . . . . 40
Automatic . . . . . . . . . . . . . . . . . . . . . 49
Automatic mode . . . . . . . . . . . . . . . . 18, 19
B
Boiler flue gas . . . . . . . . . . . . . . . . . . . . 5
Burner function . . . . . . . . . . . . . . . . . . . 65
Burnerswitch . . . . . . . . . . . . . . . . . . . . 65
automatic . .
day . . . . .
manuell . . .
night . . . . .
Operating values
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. . . 19
. . . 19
. 18, 19
. . . 19
. 26, 76
P
Permanent display . . . . . . . . . . . . . . . . . 18
Pipework . . . . . . . . . . . . . . . . . . . . . . .5
R
C
Central module . . . . . . . . . . . . . . . . . . . 16
Circulation pump . . . . . . . . . . . . . . . . . . 43
D
Day mode . . . .
DHW cylinder . .
DHW function . .
DHW temperature
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18
.5
66
23
E
Emergency mode . . . . . . . . . . . . . . . . . 73
Emergency stop switch . . . . . . . . . . . . . . 16
Emissions test key . . . . . . . . . . . . . . . . . 65
F
Factory set
DHW temperature . . . . . . . . . .
Factory setting . . . . . . . . . . . . . .
Factory settings . . . . . . . . . . . . .
Fault message "Setting Not possible" . .
Fault message "Time switch not possible"
Fault messages . . . . . . . . . . . . .
Faults . . . . . . . . . . . . . . . . . .
Fitted modules . . . . . . . . . . . . . .
Flue gast test . . . . . . . . . . . . . .
FM442 function module . . . . . . . . .
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22
62
76
33
33
70
69
13
68
67
30,
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34,
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31
76
.5
22
55
36
44
46
44
Radiator . . . . . . . . . . . . . . . . . . . . . . .5
Room temperature
matching . . . . . . . . . . . . . . . . . . . . 48
required set . . . . . . . . . . . . . . . . . 17, 20
S
Setting summer mode
Setting the date . . .
Setting the time . . .
Setting winter mode .
Setup report . . . . .
Standard program . .
Standard settings . .
Switching point . . . .
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. 41
. 29
. 29
. 41
. 76
. 36
. 27
. 38
Thermometer . . . . . . . .
Thermostatic radiator valve
Thermostatic valve . . . . .
Time switch . . . . . . . .
Troubleshooting . . . . . .
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. . . 48
. . . .6
. . . .6
. . . 34
. 69, 71
T
U
Underfloor heating system . . . . . . . . . . . . . 73
H
Heating circuit . . . . . . . .
Heating circuits – assignment
Heating control unit . . . . .
Heating DHW . . . . . . . .
Heating phase . . . . . . . .
Heating program . . . . . . .
Holiday function . . . . . . .
Holiday mode . . . . . . . .
Holidayprogram . . . . . . .
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. 25,
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I
Instantaneous water heater . . . . . . . . . . . . . 5
K
Keys . . . . . . . . . . . . . . . . . . . . . . . . 14
L
LED´s
. . . . . . . . . . . . . . . . . . . . . . . 67
M
Manual mode . . . . . . . . . . . . . . . . . 18, 19
Modules . . . . . . . . . . . . . . . . . . . . . . 64
N
Night mode . . . . . . . . . . . . . . . . . . . .9, 18
O
Operating mode
Logamatic 4211 - Subject to technical modifications.
77
Notes
78
Logamatic 4211 - Subject to technical modifications.
Notes
Logamatic 4211 - Subject to technical modifications.
79
Buderus
Cotswold Way, Warndon, Worcester WR4 9SW
Customer service: 0870 421 5933
Technical support: 0870 421 5944
Fax: 01905 753130
www.buderus-commercial.co.uk
C & F Quadrant Ltd.
Unit L40 Cherry Orchard Industrial Estate
Cherry Orchard, Dublin 10
Tel.: 01.6305700
Fax.: 01.6305706 / 01.6305715
www.cfquadrant.ie
E-mail: [email protected]
In the UK and IE, Buderus is a brand name of
Bosch Thermotechnology Ltd.
Bosch Thermotechnik GmbH
Sophienstrasse 30-32
D-35576 Wetzlar
www.buderus.de
[email protected]
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