Viessmann Dekamatik-M1 User manual

5302 682 1/98
Operating Instructions
Dekamatik-M1
Digital indoor/outdoor
boiler and heating system control
Dekamatik-M1
Please file in Sercice Binder

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1.0 Contents
1.1 Safety
1.0 Contents Page
1 Important Precautions 1.1 Safety 2
.......................................................................................................................................
2 Operating Instructions (overview) 2.1 Operating Controls / Display Elements 3............................................................................
2.2 Method of Operation of the Heating System 4..................................................................
2.3 Control Activation 4..................................................................................................................
2.4 Settings and Adjustments 4...................................................................................................
HComfortrol control unit 4......................................................................................................
HSymbols in the display 4.....................................................................................................
HSetting the heating program 5...........................................................................................
HAltering room temperatures 6............................................................................................
HAltering the DHW temperature 6.......................................................................................
HSetting party mode 7............................................................................................................
HSetting energy saving mode 7...........................................................................................
HDay, date and time 7............................................................................................................
HMenu structure 8...................................................................................................................
HTime program
- Explanatory remarks 10
.....................................................................................................
- Altering the switching times 11.........................................................................................
- Calling up the switching times 11....................................................................................
- Deleting activation periods 12..........................................................................................
- Altering the date/time 12....................................................................................................
HHoliday program 13................................................................................................................
HInstaller set-up 14....................................................................................................................
HAltering operating program from remote (via telephone) 14.........................................
HMaximum temperature limit 15.............................................................................................
HDifferential temperature 15...................................................................................................
HHeating curves 16...................................................................................................................
HLead boiler selection control 19...........................................................................................
HDefault factory settings “ ” button 20................................................................................
HHeating system shut-down 20..............................................................................................
3 Override 3 Override Switch 21.....................................................................................................................
4 Information 4.1 Scanning Temperatures (Desired/Actual Values) and
Operating Status Information 22
.............................................................................................
HExplanation of “damped” outdoor temperature 22...........................................................
4.2 Fault Indication 23......................................................................................................................
4.3 Troubleshooting Guide 24........................................................................................................
4.4 Operating the Comfortrol Control Unit 25.............................................................................
HOperational information 25....................................................................................................
HLanguage selection 26...........................................................................................................
HBattery replacement 26..........................................................................................................
4.5 Settings Checklist 27..................................................................................................................

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2.1 Operating Controls / Display Elements
1.1 Safety
This “Attention” symbol is positioned before all important safety tips.
Please follow these instructions in detail to avoid property damage, personal injury, or loss of life.
HInstallation
Please carefully read this manual prior to
attempting equipment operation. Any
warranty is null and void when these
instructions are not followed.
Viessmann boilers, burners and controls
are approved for sale in North America by
International Approval Services (IAS).
All electrical wiring is to be done in
accordance with the latest edition of the
National Electrical Code ANSI/NFPA 70. In
Canada use latest edition of CSA C22.1
Part 1 and/or local codes.
We offer frequent installation and service
seminars to familiarize our partners with our
products. Please inquire.
HWorking on the equipment
All personnel working on the equipment or
the heating system must have the
proper qualifications and hold all
necessary licenses. Ensure main power
supply to equipment, heating system, and
all external controls and power supplies
has been deactivated.Close main gas
or oil supply valve. Take precautions in
both instances to avoid accidental
activation of power during service work.
2.1 Operating Controls / Display Elements with flip-down covers open
Dials shown in default factory position.
1Comfortrol control unit
2Lead boiler selection switch FK/WA.....
= Manual operation
= Automatic operation
3Boiler sequence selection switch
4Burner status indicator ............................
5On/off switch ..........................................
I=on
O=off
6Additional feature slots
operating hour counter h
.......................
7Safety temperature high limit .............
8Adjustable high limit .............................
9TUV service button
(for service purposes only) TUV
............
10 Right flip-down cover
11 Override switch .....................................
= provisional operation
= automatic operation
12 Middle flip-down cover
13 Boiler code plug
ADisplay
BProgram selection switch .......................
CTemperature normal operation .............
DParty button ..............................................
ETemperature reduced operation ...........
FEnergy saving button ..............................
GInformation key (overview) ......................
HDefault factory settings ............................
KAdjustment knob .................................
LSelection keys , , ,.......................
MFlip-down cover

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2.2 Method of Operation of the Heating System
2.3 Control Activation
2.4 Settings and Adjustments
2.2 Method of Operation of the Heating System
Optimum interplay of the individual
components of the heating system is
required in order to generate the right
amount of heat needed to cover the heating
requirements at all times and in all weather
conditions; the boiler and the heat
distribution system (radiators, domestic hot
water tank, pipes etc.) must be correctly
matched to each other. To control this
system, your Viessmann boiler is equipped
with the Dekamatik digital indoor/outdoor
boiler and heating system control.
The Dekamatik matches the boiler water
temperature to various changing conditions
(e.g. the outdoor temperature or a higher
boiler water temperature for heating up a
domestic hot water tank, if installed).
Domestic hot water priority is feasible.
The Dekamatik possesses an integrated
diagnostic system which can recognize and
indicate any malfunctions.
2.3 Control Activation
On/off switch
I=ON
The initial start-up must be conducted by
the heating contractor.
HActivate main power to system.
HActivate Dekamatik-M1:
Switch “”to “I”.
On multi-boiler systems also switch on the
control units of the follow-up boilers.
The heating system is now ready for
operation.
2.4 Settings and Adjustments
Comfortrol control unit
After activation, the control unit shows
- the date and time (as preset in the factory)
- the selected heating program
- the boiler water temperature
The following display appears:
Tuesday,A04.02.96
10:20 HRS
PROGRAM
DHW: ON
SPACE HEATING:ON
BOILER TEMP. : 62 ºC
................STÖRUNG.................
INFO: OPEN COVER
Example of a display (with cover closed)

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2.4 Settings and Adjustments
Symbols in the display
The symbols “ ” ,“ ” or “ ” appear
individually or in combination
according to the current operating status of
the system, i.e. depending on the program
or activation periods.
Heating program “ ” Heating program “ ” Heating program “ ”
DHW: OFF
Space heating: OFF
DHW: ON
Space heating: OFF
DHW: ON
Space heating: ON
No symbols are displayed
after the above data
The symbol ” ” appears if
domestic hot water is being
heated (according to activa-
Both symbols appear in combination if the heating circuit is currently
switched to heating (according to activation period) and the priority
control for domestic hot water heating is not activated.
(
g
tion period) DHW: ON
Space heating: ON
Both symbols appear in combination if the heating circuit is switched to
reduced operation (according to activation period) and the priority con-
trol for domestic hot water heating is not activated.
If only the symbol ” ” appears, the DHW priority control is activated.
DHW: ON
Space heating: OFF
The cu
r
r
ent point in time is outside the pe
r
iod in which domestic hot
water heating is provided.
Domestic hot water heating does not take place. Space heating is OFF.
The current point in time is outside the selected activation period. The
system goes to standby mode, i.e. with frost protection. The selector
knob “ ” is turned to “0”.
Setting the heating program
Three heating programs can be set with the program selection switch.
Program selection switch Heating program When setting required
DHW:ON
Space heating:ON
with frost protection
Factory setting
i.e. du
r
ing the heating season
DHW:ON
Space heating:OFF
with frost protection
i.e. in summer when space heating is not re-
quired
DHW:OFF
Space heating:OFF
Frost protection:ON
i.e. when away on holidays or during
a long period of absence
Frost protection of the heating system
If the outdoor temperature falls below
+34 ºF /+1ºC, the first boiler in a
multi-boiler system is operated with a
minimum boiler water temperature in order
to avoid damage to the heating system due
to freezing. The system pump is activated.
The frost protection function is cancelled
with outdoor temperatures over +37 ºF /
+3 ºC. The system pump is switched off.

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2.4 Settings and Adjustments
Altering room temperatures
Normal operation (i.e. during daytime)
colder warmer
Reduced operation (i.e. during
nighttime)
colder warmer
SELECTED ROOM TEMP.A
PREVIOUS: 20 ºC
CURRENT: . . ºC
INFO: OPEN COVER
SELECTED ROOM TEMP.A
PREVIOUS: 14 ºC
CURRENT: . . ºC
INFO: OPEN COVER
HSet selector knob to required
temperature.
HThe previous and current room
temperatures appear immediately
in the display.
HAfter approx. 5 seconds, the display
changes and the new temperature is
stored.
Note:
The selected room temperatures apply to a
correctly adjusted heating curve (see page
16).
Setting “0” corresponds to approx. 41 ºF /
5ºC (factory setting)
Setting “3” corresponds to approx. 57 ºF /
14 ºC room temperature.
Frost protection of the heating system is
guaranteed in setting ”0”.
Altering the DHW temperature
DHW TANK / TEMP..A
WATER TEMP.:
50 ºC
>CHANGE TEMP. A..........
>BACK: C..................
>MAIN MENU: D............
If you wish to adjust the domestic hot water
temperature, open the cover and scroll
through the menu as follows:
HSelect DHW.
HSelect TEMPERATURE.
You are now in the TEMPERATURES
menu. Follow the menu and adjust the
domestic hot water temperature.
Please refer also to the sections headed
”Menu Structure” on pages 8 and 9.

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2.4 Settings and Adjustments
Setting party mode
TUESDAY,A04.02.96
18:30 HRS
PARTY MODE
SELECTED: 20 ºC
CHANGE PARTY TEMP:
OPEN COVER
BOILER TEMP.: 62 ºC
Note:
Set the party mode when you require room
heating outside the preset heating program
and the preset switching times. Domestic
hot water heating is also available.
HPress “ ” button.
To change the party temperature
HFollow the instructions in the display.
To cancel the party mode:
HPress the “ ” button. Otherwise, the party
mode is cancelled automatically the next
time the preset heating program switches
from reduced operation to normal
operation.
Setting energy saving mode
TUESDAY,A04.02.96
10:35 HRS
ENERGY SAVING MODE S
BOILER TEMP.: 62 ºC
INFO: OPEN COVER
Note:
In the energy saving mode, the room
temperature is lowered by approx. 4_F/
2_C.
HPress “ ” button.
To cancel the energy saving mode:
HPress the “ ” button. Otherwise,
the energy saving mode is cancelled
automatically the next time the preset
heating program switches from normal
operation to reduced operation.
Day, date and time
This data is preset in the factory and is
updated through the built-in long-life battery.
If it is necessary to make any adjustment for
daylight-savings time, please refer to
”Altering the date/time” on page 12.

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2.4 Settings and Adjustments
Menu Structure
The following descriptions provide you with
an overview of the menu structure within the
menu-driven Comfortrol control unit.
In this way, finding information in the menu
is simplified.
Please proceed as follows:
HPinpoint the information you wish to query
on the 2nd, 3rd, or 4th level (see
overview).
HTrace the necessary path through the
menu back to the first level.
HFollow the appropriate sequence on the
control unit as described in the diagram
below.
Note:
The levels appear consecutively in the
display.
“Heating circuit” menu structure (Overview 1)
TIMER SWITCHING
TIMES TIME
SCHEDULE
>BOILER CIRCUIT A: A.
>DHW: C..............
>SYSTEM: D.......... DIFFERENT
DAYS
CHANGE
HOLIDAY
PROGRAM
DELETE
HEATING
CURVE HEATING
CURVE SLOPE
SHIFT
MAX. LIMIT
BC.
DIFF. TEMP.
MAIN MENU
1st level 2nd level 3rd level
continue with
DIFFEREN-
TIAL-TEMP.
4th level
”DHW” menu structure (Overview 2)
TIME
SCHEDULE TIME
SCHEDULE
>BC CIRCUIT A: A.....
>:BC CIRCUIT B B.....
>DHW: C..............
>SYSTEM: D..........
DIFFERENT
DAYS
TEMPERA-
TURE CHANGE
TEMP.
DHW TANK
CONDITION
OPERATING
STATUS
MAIN MENU
1st level 2nd level
DHW TANK
RECIRCU-
LATION PUMP
OPERATING
STATUS
TIME
SCHEDULE TIME
SCHEDULE
DIFFERENT
DAYS
DHW CIRC. PUMP
STATUS
3rd level 4th level

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2.4 Settings and Adjustments
”System” menu structure (Overview 3)
*1Only to be carried out by the
*1heating contractor.
*2Can be selected by the heating
*1contractor via the coding address.
*3Display for 3 boilers.
FACTORY
SETTING CLOCK CHANGE
DATE
>BC CIRCUIT A: A.....
>DHW: C.............
>SYSTEM: D.......... CHANGE
TIME
INSTALLER
SETUP
OUTDOOR
TEMP.
COMMON
FLOW TEMP.:
BOILER TEMP.:
OPERATING
STATUS
BURNER
STAGE 1/2: ON/OFF.....
OPERATION 1/2: h......
MAIN MENU
1st level 2nd level 3rd level
ENGLISH
FRANÇAIS
LANGUAGE/
LANGUE
FLUE GAS TEMP.
MAX./CURRENT:
RETURN TEMP.
OP. STATUS
PUMPS
Continue with
*1
SCAN 1, 2, 3:
CODING PLUG:
ASSIGNED TO
COMFORTROL
CODE PLEASE:
ABORT
or
*2
4th level
TEMP. BOILER 1
TEMP. BOILER 2
TEMP. BOILER 3
*3

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2.4 Settings and Adjustments
Time program - Explanatory remarks
General information
A time program consists of switch-on and
switch-off times which are set on the
Comfortrol control unit. Depending on the
heating program you have selected, these
control the switching (on and off) of:
- normal operation
(room heating ON )
- reduced operation
(room heating ON )
- standby mode
(room heating OFF)
- domestic hot water heating
(if installed)
Example:
Heating program “ ”
(Domestic hot water ON/room heating ON)
Please note:
“”knob not turned to “0”.
Activation time: i.e. 6:00 HRS
Changeover from reduced operation to
normal operation
Activation time i.e. 22:00 HRS
You can set up to four activation periods per
day for room heating and domestic hot
water heating
Example of activation periods
for room heating: 05:00 - 08:00 HRS
11:00 - 13:00 HRS
16:00 - 18:00 HRS
21:00 - 24:00 HRS
Only the first activation period is preset in the
factory.
Switch-on time: 6:00 HRS
Switch-off time: 22:00 HRS
The use of the selectable activation periods
ensures economic fuel consumption.
“on” and “off”
reaction times
Illustration of the default factory timer program