Room controller Como
7
4
:
12
Operating and
Installation Instructions
Please follow the safety information and
read through these Instructions carefully
before placing the system into operation.
Safety information General
General
Safety information
General
E This attention symbol is used in
these Instructions to point out
risks and dangers to the life and
limb of persons and/or damage to
property.
Power connection regulations
Please note the connection conditions
specified by your local electrical power
supply utility and the VDE regulations.
Your heating control system may be installed and serviced only by appropriately authorised specialists.
E If the system is not installed pro-
fessionally, this will involve a risk
to life and limb.
Warranty conditions
If the system is not installed, commissioned, serviced and repaired professionally, this will render the manufacturer's warranty null and void.
Declaration of conformity
Como
corresponds to the requirements of the
relevant guidelines and standards, if
the corresponding installation regula-
tions and the manufacturer’s instruc-
tions are complied with.
Descriptions of operating
procedures
Certain operating sequences are explained using examples. The statuses
of the controller are illustrated or described as boxes. The following status
can be accessed by operating the operating controls as shown or by performing the operation described.
Key symbols
:
Operate mode-selector switch
Press ECO key
Press Party key
Ä Press Programming key
Press Plus key
Press Minus key
Notes
! Important information is highlighted
with an exclamation mark.
2
Operation Operating controls
A
Operation
Operating controls
a
b
7
7
4
:
2
1
4
2
6
1
8
2
1
F
6
5
4
3
2
1
D
1
Commissioning
! Please do not forget: Remove the
protective film from the battery contacts (see Chapter Battery change).
After correct installation, it is first necessary to enter the language, the time
and the day of the week in order to operate the controller:
Correcting the desired room
temperature
The rotary knob can be used to adjust
the programmed desired room temperatures by ± 5°C. The set reduced
temperature is not influenced. The corrected desired value is displayed as
DES ROOMTEMP at level "Parameter"
(is updated every 10 s).
BC D
a Display
b Hinged control panel cover
A Mode-selector switch
B ECO switch
(interrupting the heating time)
C Party switch
(prolonging the heating time)
D Rotary knob for desired value
entry
1. Open the hinged front panel (b).
2. Press key
Ä .
3. Select the language with keys
4. Press key
5. Set the time with keys
6. Press key
Ä twice.
/ .
Ä .
7. Set the day of the week (1-7) with
keys
8. Press key
/ .
Ä .
9. Close the hinged front panel (b).
The controller is now ready for operation!
/ .
3
Operating controls Operation
Mode-selector switch
: Change the operating mode.
! Takes effect after 3 seconds.
i Frost-protection mode
The controller is switched off. The
desired value for the room temperature is set to 5°C.
q 1: Heating program 1
(Automatic 1) Automatic change of
the desired room temperatures at
the programmed switching times.
q 2: Heating program 2
(Automatic 1) Automatic change of
the desired room temperatures at
the programmed switching times.
B Heating mode
The controller constantly stabilises
the system to desired room temperature 1.
C Reduced night operation
The controller operates constantly in
ECO mode and stabilises the system
to the set economy temperature.
Heating time changes /
The heating time change is terminated
by pressing the mode-selector switch
.
ECO key
In Heating mode:
Each time key
is pressed, the
heating circuit switches to Reduced
mode for 1 further hour.
In Reduced mode (ECO):
Each time key
is pressed, Reduced mode is prolonged by one hour.
Pressing the Party key
shortens the
set interruption by 1 hour.
Sleep mode:
If the ECO key
is pressed for
longer than 3 seconds, the room controller switches to Reduced mode regardless of the heating program until
the first heating time of the next day.
Display: C
Party key
In Reduced mode (ECO):
Each time key
is pressed, the heating circuit switches to Heating mode
with the desired room temperature of
the last heating time for one further
hour.
In Heating mode:
Each time key
is pressed, the heating period is prolonged by 1 hour.
When the ECO key
is pressed,
this shortens the set heating time extension by one hour.
Non-Stop mode:
If the Party key
is pressed for longer
than three seconds, the room controller
switches to Heating mode with desired
room temperature 1 regardless of the
heating program until the first heating
time of the next day.
Display: B
4
Operation Operating controls
A
Display
Como features a liquid-crystal display
(LCD) displaying
all relevant data.
A
B
C
D
H
E
B
12:47 20°C
G
F
DFC
EFHI
ML
The standard display shows the following information:
A: It is Saturday
B: The time is 12:47
C: The current room temperature is 18.2°C
D: The current operating mode of the control is Automatic 1
(Heating on the basis of the heating times in heating program 1)
E: The system is in Heating mode
(The relay is closed; the burner is on resp. the valve is open)
F: The system is in the second heating time
G: Heating mode on Saturdays (A): from 6 am to 9 am and from 12 am to 11 pm
H: Optional: TR 20°C => The current desired room temperature is 20°C
TA 20°C => The current desired outside temperature is 20°C
A Plain-text display and time
B 24h clock for display of the current heating times
C Display of the current heating time (1-3)
D Symbol for Holiday mode (frost protection)
E Symbol for burner in Heating mode
F Warning symbol: "Parameter may be adjusted“
G Symbol for cooling in Cooling mode
H Arrow points to current day of the week
I Days of the week (1-7 => Monday-Sunday)
J
J Degrees Celsius
K Note: "Change battery“
K
L Parameter value display
M Symbols for current operating mode:
[Standby (frost protection), Automatic 1, Automatic 2, Heating mode, Reduced (night) mode]
5
Einstellwerte Operation
Einstellwerte
Changing the settings
Opening the hinged control panel cover
causes the operation-control module to
switch automatically to Information and
Programming mode. The operating
controls are assigned a new significance (which can be seen from the
printed designations which will now appear beneath the keys).
All entries can be made on the basis
of the same principle
1. Open the hinged cover on the front
of the controller; the controller
switches to INFO mode. The three
keys are then assigned the function
printed on the inside of the hinged
cover.
2. Choose the required parameter of
the current level or another level
with keys +/-.
3. Press the Programming key
4. If you press key
Ä and have se-
Ä.
lected a lower operating level
-> continue at Point 2!
5. If you press key
Ä and have se-
lected a setting, the controller
AB
C
Ä
E
GHFD
changes to Programming mode
(Programming indicator E).
6. The parameter value can be
changed with keys
7. Press key
Ä again; this saves the
or .
new value.
8. If you close the hinged cover before
pressing key
, this quits Pro-
Ä
gramming mode. The controller
switches to the standard display
(boiler temperature and time). The
changed value is not saved.
A Designation of the entry or of
the operating level.
B Entry
C Programming indicator
(Warning triangle E)
D Programming key
E
key: Next setting /
increment setting
F
key: Previous setting /
decrement setting
G RESET switch
H Desired room temperature
correction
! You can branch up to the next oper-
ating level by pressing key
selecting the "RETURN" function.
Ä and
6
Operating levels Einstellwerte
Operating levels
Operating levels
After you open the hinged control panel
cover (Info mode), you can choose six
different operating levels with the
+/- keys. You can activate the selected
level by pressing the Programming key.
Open hinged
front panel
⇓
TIME-Day
↓ ↑
Temperatures
↓ ↑
Heating Prog1
↓ ↑
Heating Prog2
↓ ↑
Holiday
↓ ↑
Parameter
Display/set desired
Ä
time and day
Display/set desired
Ä
temperatures
Display/set heating
Ä
program 1
Display/set heating
Ä
program 2
Display/set holidays
Ä
Display/set
Ä
parameters
Heating Prog1 / Heating Prog2
The BM allows entry of two heating
programs between which the user can
select.
! If switching time entry in blocks (Mo-
Fr, Sa-Su, Mo-Su) is activated, the
current switching times of the first
day of the block are displayed. The
display does not show the switching
times of the entire block. If you activate a switching time with the Programming key
E) and then save the value by
pressing the Programming key
again. All switching values in the
block are overwritten by the switching values of the first day in the
block!
Recommended procedure
1) Enter all heating times for the pe-
riod Monday-Sunday (overwrite all
switching times of the week!).
2) Enter different switching times for
the corresponding days.
Ä (Warning triangle
Ä
Entry of the heating programs
1) Open the hinged front panel
-> Temperatures.
2) Select a heating program with keys
.
(Press key
Press key
3) Press key
1x -> HEATING PROG1.
2x -> HEATING PROG2.)
Ä.
4) Select the period for which the
switching times are to be defined
with keys
5) Press key
.
Ä.
6) Select the heating time to be
changed with keys
7) Press key
Ä
.
(Programming indicator E).
8) Adjust heating time start with keys
.
9) Save new or unchanged heating
time start with key
Ä.
10) Adjust heating time end with keys
.
11) Save new or unchanged heating
time end with key
12) Using keys
ing time or "RETURN". Press key
Ä.
, select next heat-
Ä.RETURN => Next level up
7
Einstellwerte Operating levels
Parameter
Room sensor adaptation
The actual display can be varied by
± 5 K in order to adapt the room temperature display to the installation conditions or other thermometers. The corrected display value is used in the
calculations for all relevant functions.
Display
This parameter allows you to set
whether the current desired room temperature or the outside temperature is
shown on the display.
Outside temperature
After the program-sensor b and the
sensors have been activated the
max. and min. values of the outside
temperature since day change can be
read.
Warm-up optimisation
Warm-up optimisation determines the
optimum advance time of start of heating. The time advance ensures that the
heated rooms have reached their desired temperature at the switch-on
times of the heating times.
Display:
Setting
Last time advance required
: Maximum time advance
Control I/0 <=> Proportional
Selection between two-point and proportional control.
CONTROL I/0
Heating mode starts if the actual temperature drops below the room temperature by the displayed amount [K]. If
the temperature is exceeded by the
amount [K], Heating mode ends. A
minimum switch-on/switch-off time can
be set with the delay setting.
PROPORTIONAL control
Heating mode is switched on for a percentage (50 %) of the adjustable cycle
time as a function of the deviation between the measured and desired temperature of the room. The hysteresis
setting allows you to set an allowable
deviation from the desired temperature.
This avoid short On times of the boiler.
CONTROL OFF
No control function. The relais switches
only time dependent.
Heating/Cooling
The controller can also be used for
controlled cooling of rooms. If the
"Cooling" function is selected, the connected cooling system is closed if the
desired temperature is exceeded by
the set hysteresis and is opened if the
actual temperature drops below the
desired temperature. In Proportional
mode, the relay is also switched as a
function of the control deviation. The
greater the set desired temperature is
exceeded at the instant of computation,
the longer the cooling system remains
active.
Telephone switch/window contact
Telephone switch: The controller
switches to Heating mode
B for as long
as the contact between terminals 3/4 is
closed.
Window contact:
The controller
switches to Frost-protection mode i
for as long as the contact between terminals 3/4 is interrupted.
8
Operating levels Einstellwerte
Parameter Designation Adjustment range Factory default
LANGUAGE
ADAP ROOMT
DES ROOMTEMP
ANNOUNCE *)
OUTSIDE TEMP.
BURN TIME
BURN START
OPTIMIZAT
Parameter designation language D GB F NL E I CZ German
Room sensor adaptation -5°C - +5°C 0°C
Current desired room temperature (including correction) Display only
Choice of additional display
Actual outside temperature (24h MAX/MIN) Display only
Display of burner operating time in hours
Display of burner starts
Display of last time advance required
Setting of maximum time advance
Control I/0
Control I/0 or Proportional mode Control I/0
- Control I/0: Hysteresis: Hysteresis for ON/OFF control
Delay: Delay for relay state
- Proportional: Hysteresis: Dead band for proportional mode
Sampling time: Cycle time for proportional mode
- Control Off:
Heating
Telephone i-0
Reset
The relais switches only time dependent. 0/1 0
Heating or cooling mode H, K Heating
Telephone switch or window contact T, F Telephone I-0
Load factory default:
1) for heating program 1 or
2) for heating program 2 or
3) for all temperatures and all settings of this list (apart from language, time and date)
4) or for all values.
Settings
OFF/ROOM SET T/
OUTSIDE = 0/1/2
Place backwards =0
Place backwards =0
0 = OFF
Display only
Display only
0 (= Off) - 3 hours 2 hours
0.1 K - 2.0 K
0-30 min
0 K – 2.0 K
0-30 min
0.4 K
0 min
0 K
10 min
*) At connection of an outside sensor to the clamps 5+6 DISPLAY must be set to „2“ = outside temperature.
9
Accessories Operating levels
Temperatures
Display Adjustment
range
ROOM-TEMP 1
ROOM-TEMP 2
ROOM-TEMP 3
ECONO TEMP
5°C - 40°C 20°C
5°C - 40°C 20°C
5°C - 40°C 20°C
5°C - 40°C 10°C
Factory
setting
Room temperature
This parameter allows you to program
the required desired room temperature
for the three heating times. The entered value is set by the control on the
basis of the integrated room sensor.
ECO-TEMP
The reduced temperature or economy
temperature represents the temperature to which the system stabilises outside the heating times, e.g. during the
nighttime or during ECO mode.
Holiday
You can use the controller's Holiday
program during the holiday period. The
duration of the holiday and the holiday
start are entered in days. The Holiday
program is always activated at 12.00
hours and always ends at 24.00 hours
of the last day of the holiday.
! If the holiday period is entered be-
fore 12.00 hours, the Holiday program starts on the day of entry (SHOLIDAY=00; with S-HOLIDAY=05
in 5 days). If the holiday period is entered after 12.00 hours, the program
starts on the next day at 12.00
hours. It thus also ends one day
later.
The controller switches to Standby
mode during the holiday. The Holiday
symbol is shown on the display. Holiday mode is terminated by operating
the Program switch.
! Please check batteries!
Accessories
External room sensor RFB
Not in combination with AF
Installation location:
• In the main controlled zone of the
heating circuit (on an interior wall in
the living room).
• Not in the vicinity of radiators or
other appliances emitting heat.
Installation:
Use a screwdriver to lever the cap off
of the base; see illustration overleaf.
Outdoor sensor AF
00110-00
Outdoor sensor AF not in combination
with RFB
10
Operating levels For the fitter
Battery change
E When the batteries reach a low
charge state (M), the system
switches to Heating mode. (Relay
: :
24
6
18
M
12
F
1
7
6
5
4
3
2
DBF
2
1
contact is closed -> burner /
pump is on resp. valve is open).
! Always dispose of spent batteries
properly (spent battery collection
point).
Swivel upper part of controller upwards
„c“. The two batteries must be changed
within 2 minutes. If the battery change
should last longer, press the Reset button and reset time and weekday (see
Reset function). Then re-engage the
top section at the upper edge of the
socket and swivel it back onto the base
"d“. Press on until the top section engages in position.
For the fitter
Installation
A Hole for fastenings screw
B Terminal compartment for mains
voltage
E (always reclose the cover af-
A
B
A
C
D
EFGH
ter connection)
C Break-out opening for cable
D Connection terminals for the re-
lay (beneath the cover)
E 250 V AC 10(2) A relay
F Plug connection for controller
G Terminal 3+4 for telephone
switch / window contact
c
d
K
a
I
J
b
H Terminal 5+6 for RFB external
room sensor or Outdoor sensor
AF
I Terminal compartment for extra-
low voltage
J Batteries: 2 x 1.5 V round cell
LR6 / AA / AM3
11
For the fitter Operating levels
Errors
Error Error designation
E 80 Room sensor /AF defective
Discontinuity/short circuit
E 81 EEPROM error
Check settings.
Sensor resistances (RFB, AF)
The sensor resistances must
be measured in the base with
the controller removed.
Temperature -15°C -10°C 0°C 5°C 10°C 15°C 20°C 25°C 30°C 35°C
Resistance
36.465 Ω 27.650 Ω 16.330 Ω 12.700 Ω 9.950 Ω 7.855 Ω 6.245 Ω 5.000 Ω 4.030 Ω 3.265 Ω
Technical ratings
Supply voltage 2 ea. round cell batteries LR6/AA/AM3 3 V DC
Switching capacity of the relays 250V 10 (2) A
Enclosure to EN 60529 IP 40
Safety class to EN 60730 II, totally insulated
Power reserve of the timer (battery change)
Permitted ambient temperature during operation 0 to 50°C
Permitted ambient temperature for storage -20 to 60°C
Malfunctions attributable to incorrect operation or setting are not covered by warranty.
RESET function
In case of error function or to restore manufacturers set-up
RESET: The controller performs a restart. The controller will work with
the adjusted values. Only time and weekday have to be reset.
RESET + Ä : This overwrites all parameters with default values.
! You must press the additional key Ä when you release the
RESET key.
> 2 min.
EN 1104 6.6701.196-02 Printed in Germany. Subject to modification.
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