Kromschroeder Lago Basic 0101/1001 User manual

Lago Basic 0101/1001
Boiler module/Mixer
controller
Operating and
Installation Instructions
Please observe the safety instructions and
read through this manual carefully before
commissioning the equipment.

Safety information General information
2
General infor mation
Safety information
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 on-
ly by appropriately authorised specialists.
E For fixed devices, a facility for mains disconnection in
accordance with EN 60335 must be installed in
compliance with the installation specifications
(e.g. switch).
EThe mains lines insulation must be protected against
damage caused by overheating (e.g. insulation hose).
EThe minimum distance to installation objects in the vicinity
must be chosen so that the permitted ambient
temperature is not exceed during operation
(see table - Technical data).
EIf the system is not installed properly, persons using it are
at put at risk of fatal or serious injury (electric shock).
Ensure the controller is de-energized prior to performing
any work on the controller!
Safety
Please read and keep in a safe place
Please read through these instructions carefully
before installing or operating. Following the installation, pass
the instructions on to the operator.
Warranty conditions
If the system is not installed, commissioned, serviced and re-
paired professionally, this will render the manufacturer's war-
ranty null and void.
Conversion
All technical changes are prohibited.
Transport
On receipt of the product, check that the delivery is complete.
Report any transport damage immediately.
Storage
Store the product in a dry place. Ambient temperature: see
Technical data.
Important text passages
!Important information is highlighted with an exclamation
mark.
EThis attention symbol is used to point out dangers in this
manual.
General Notes
!With regard to installation, operation, and maintenance,
the following instructions must be observed. This
device must only be installed by a specialist technician.
Improperly performed repairs can subject users to
considerable risks.

General information Description
3
!To comply with applicable regulations, the
instructions for assembly and operation must be
readily available at all times and must be handed
over to the responsible engineer when working on
the device for his attention.
Installation
Information on installation of the system is provided in Part
2 of this manual together with a connection diagram.
Description
Declaration of conformity
We the manufacturer declare the product Lago Basic
0101/1001 is in conformity with the fundamental require-
ments of the following directives and standards.
Directives:
– 2004/108/EC, 2006/95/EC
Standards:
– EN 60730-1, EN 60730-2-9
The manufacture is subject to the quality management
system in accordance with DIN EN ISO 9001.
General Function
Control of a fixed flow temperature or a fixed return
flow temperature via control of a heat generator or a
mixer.
It is possible to connect a room thermostat or a timer
switch (24 V).
Hot water function via sensor or thermostat.
Weather-dependent and room temperature dependent
control of a flow temperature via control of a heat
generator or a mixer
(time guidance only with additional module).
Heating module in a cascade

Description General information
4
General information 2
Safety information 2
Power connection regulations 2
Safety 2
Warranty conditions 2
Important text passages 2
General Notes 2
Installation 3
Description 3
Declaration of conformity 3
General Function 3
Operation 6
Explanation of the operating elements 6
Rotating switch 6
Incremental encoder / Shaft encoder 6
Key STL-test / Enter / Reset 6
Settings via DIP switch (rear side) 6
Display (normal mode "Run") 7
Symbols below the display 7
Starting up 8
Modifying set values 8
List of the User Set Values 8
Explanatory information 9
Set values 9
Settings via DIP switch (rear side) 11
Functions 12
Operation without operating module 12
Control of the flow temperature 12
Mode of operation cooling
(only as 1001 mixer operation) 13
Operation using operating module 13
Zone control 13
Warm-up temperature (HS min. – 5 K) 13
Frost protection function 13
DHW Relief 14
Circulation pump control
(not in the case of a fixed value) 14
Special functions 14
EEPROM check 14
Pump blocking protection 14
Mixer motor blocking protection 14
Delayed pump switch-off 14

General information Description
5
Installation 15
Assembly / Dismantling 15
Dimensions 15
Electrical connection Controller 16
Electrical connection, base 17
Options 18
System diagrams 19
Boiler controller with direct heating circuit and
Hot water 19
Boiler controller with Header pump / mixer motor
expansion 20
Boiler controller in cascade operation 22
Remote controls 23
The operating module Merlin BM, BM 8,
Lago FB 23
Remote control FBR2 23
Sensor resistances FBR 24
PC 24
Maximum delimiter 24
Telephone switch 24
Sensors 25
Outside sensor AF (AFS) S25
Immersion sensor KF (KFS) H/ SPF (SPFS) F25
Strap-on sensor VF (VFAS) v25
Sensor values / characteristic curve 26
Errors 26
Technical data 27
Glossary 27

Explanation of the operating elements Operation
6
Operation
Explanation of the operating elements
Rotating switch
RUN Automatic mode
To the left:
iStandby (frost protection only) KMBurner OFF,
heating circuit pump OFF, hot water function
OFF
MM: Mixer CLOSED, heating circuit pump OFF
x/jManual operation (emergency mode/service)
KM: Burner ON, heating circuit pump ON,
hot water charging pump ON
MM: Heating circuit pump ON
in the case of Prog. key => Relay test with in-
cremental encoder
BUS ID (boiler or heating circuit number)
To the right:
°CDwith room / outside sensor: Room set
temperature
°CDin the case of fixed value: Flow / Return flow set
temperature in the case of control mode:
Maximum flow temperature
Rbwith room sensor: Room sensor influence
Sbwith outside sensor: Heat slope
°C F/ vbKM: Hot water set temperature
MM: Mixer dynamics
Incremental encoder / Shaft encoder
Adjusting a set value
Key STL-test / Enter / Reset
STL-test (RT without effect) => By pressing > 1 sec
=>Burner on, for as long as key is pressed, display:HS-
Temp flashes (no function as mixer)
Enter (modify set values) => Selection of parameter for ad-
justment (flashing); Save by pressing again
=> for temperature readouts: Display set value (for 2 sec-
onds)
RESET : In order to reset the controller to the default set-
ting, keep the key pressed while defining the operating
voltage (display "EE")All user values will be lost during this
procedure! For this reason, please take a note of your own
parameters in this manual.
Settings via DIP switch (rear side)
!Settings 1 - 5 only take effect if used as control for a
heat generator (HS) when no corresponding
operating module is connected.
1 + 2: OFF,OFF=> No HS minimum delimiter
OFF,ON => Minimum delimiter when burner ON
ON,OFF => Minimum delimiter when heating
requirement
ON,ON => Minimum delimiter 24 h
3: Selection HS minimum delimiter HS minimum
temperature (40 °C <-> 60 °C)
4: Parallel operation OFF/ON
5: Antibacteria function OFF/ON
6: Sensor selection: 5 k NTC <-> 1 k PTC
Factory setting DIP switch 1 - 6 OFF

Operation Display (normal mode "Run")
7
Switch
9-stage
Key Incremental encoder
or shaft encoder
Display (normal mode "Run")
The display shows the flow temperature of the heat gener-
ator or the heating circuit. When the incremental encoder
is rotated, the following temperatures are displayed: 1.
Outside temperature (S, arrow 1),
2. Hot water temperature (F, arrow 2) => key: Set value
3. Room temperature(R, arrow 4) => key: Set value
Display „- -„ => No measured value available.
Symbols below the display
KM:
H// = Burner ON
F// = Charging pump ON
Z= HS pump ON // HC pump ON
= Communication OK!
MM:
H// = Mixer opens OPEN (arrow points upward)
F// = Mixer closes CLOSE
(arrow points downward)
Z= HC pump ON
= Communication OK!
If an arrow points towards one of the printed symbols, the
corresponding function is active.

Modifying set values Starting up
8
Starting up
Starting up
After the device has been properly installed (please ob-
serve the switch position on the rear side of your device),
switch on the power supply.
The software number for your device and then the index of
your software briefly appears in the display.
Then the readout appears in accordance with the position
of the rotating switch.
The controller is now operational => "Run"
Modifying set values
Rotate the selection switch to the corresponding set value
The display shows the currently set value.
Press the OK key.
The value starts to flash and can now be changed using
the rotary knob.
By pressing the button key OK once more, the value is
stored in the device.
Rotate the rotating switch to RUN Automatic mode
=> the mode is activated after 2 seconds.
List of the User Set Values
Designation Area Factory Values
Run => Normal mode
Display level with shaft encoder
- -
°C h= Room set tem
p
erature*
)
5
–
40 °C 20 °C
°CD= (MAX T-HS = 95 °C) =
in the case of fixed value =>
Flow / Return flow set tempera-
ture*)
in the case of control mode =>
Max. flow temperature*)
20 – 110 °C
40 °C
80 °C
Rb= Room sensor influ-
ence*)
00 – 20 10
Sb= Heat slope*) 0.0 – 3.0 1.2
°C F= only HS controller
Hot water set temperature*)
10 – 70 °C 60 °C
vb= only mixer controller
Mixer dynamic
05 – 25 12
BUS ID =>
KM: HS number
MM: Heating circuit number
--,00 - 08,11 - 88
01 – 15
--
01
x/jManual operation
(emergency mode/service)
Prog key = Relay test
00 – 03 00
iStandby
(OFF or only frost protection)
- -
*) !These values are set on the matching operating module (KM:
address 00/01; MM: address of mixer) if such a module is
connected.

Explanatory information Set values
9
Explanatory information
Set values
Room set temperature
Only effective if an outside sensor or a room sensor
(without operating module) is connected.
=> Setting the desired room temperature
Flow set temperature (fixed value)
Only takes effect if no outdoor sensor, room sensor, or
operating module is connected.
=> Input of the desired flow / return flow temperature.
Maximum flow temperature
If an outdoor sensor or a room sensor is connected
The measured temperature setting for the heating circuit
flow is limited to the maximum flow temperature setting
(overheating protection).
EThe heating circuit pump of the direct heating circuit is
switched off if the temperature of the heat generator
exceeds the maximum flow temperature by 8 K. The
heating circuit pump is switched on again when the
temperature of the heat generator drops below the
temperature [maximum flow temperature + 5 K].
Room sensor
Only active if a room sensor or the FBR analogue room
device (room sensor + selection of operating mode) is
connected..
The flow set temperature is increased by the set value
when the temperature drops below the required room tem-
perature by 1 K.
=> High values lead to fast control and large heat genera-
tor temperature fluctuations.
- - - - => pure weather-dependent control
0 => pure weather-dependent control *)
20 => pure room temperature control
*) Special function with ROOMS-INFL = 0
For one-off heating requirements during the night reduction
the heating pump continues to run until the next heating
period is reached (see chapter entitled "Circulation pump
control").
Heat-Slope
Only active if an outside sensor (without operating module)
is connected.. The gradient of the heat slope indicates by
how many degrees the flow temperature changes if the
outside temperature rises or drops by 1 °C.
Setting tip:
At cold outside temperatures, room temperature too low =>
Increase heat slope (and vice-versa)
At high outside temperature (e.g.16 °C) room temperature
too low => correction via set room temperature

Set values Explanatory information
10
0,2
0,4
0,6
0,8
1
1, 2
1, 5
2
2,5
3
20
40
60
80
10 0
201612840-4-8-12-16
Flow temperature [°C]
Outside temperature [°C]
Heat slope diagram (setting aid)
Setting 0 => Room control only
!The heat slope can best be set at outside
temperatures below 5 °C. The change in heat slope
setting must be made in small steps and at long
intervals (min. 5 to 6 hours) because the system
must first adjust to the new values each time the
heat slope is changed.
Guideline values
Underfloor heating S = 0.4 to 0.6
Radiator heating S = 1.0 to 1.5
Hot water set temp. (only in the case of boiler module)
Setting the desired hot water temperature. This tempera-
ture is stabilised in the storage tank for 24 h
HW thermostat instead of HW sensor: Hot water prepara-
tion in the event of short circuit on the sensor input.
If a corresponding operating device is connected the hot
water function is only activated during hot water enable
times.
Mixer dynamic (only in the case of mixer module)
Speed setting at which the mixer motor adjusts when a
control difference occurs. The control difference at which
the mixer motor opens/closes without interruption is en-
tered in Kelvin.
!Small values cause the mixer motor to adjust quickly
and can lead to oscillation.
BUS-ID (heating circuit number)
KM: [- -] HS with direct heating circuit and Hot water
[00] HS with header pump and Hot water
[01 - 08] [11-88] HS in a cascade with HS-Pump
=> Enter number of the heat generator. Setting > 08 can
be supported only during cascading by cascades with ap-
propriate cascade managers.
MM: The heating circuits are sequentially numbered start-
ing with "01". heating circuit numbers must not be assigned
twice. For replacement controllers, please enter exactly the
same heating circuit numbers as the replaced controller.

Explanatory information Set values
11
Settings via DIP switch (rear side)
Switch 1 - 5 only valid in the case of HS controller without
operating module
HS minimum delimiter ( switch 1 + 2)
Reduces condensation build-up in boiler when heating
requirement is low. In all cases, the heat generator is
never switched off before the minimum boiler temperature
has been reached + 5 K.
OFF, OFF = No HS minimum delimiter
OFF, ON = Minimum delimiter on heat slope
HS switches on when the temperature drops below
the temperature demanded by the consumers (flow
set temperature).
ON, OFF = Minimum delimiter during heat requirement
During heating requirement (pump enabled), the
boiler maintains at least the set minimum
temperature
(40 °C or 60 °C).
ON, ON = Permanent minimum delimiter (24) The HS
maintains at least the set minimum temperature for
24 h.
Minimum HS temperature (40 °C <-> 60 °C)
Reduces condensation build-up in boiler when heating re-
quirement is low. In all cases, the heat generator is never
switched off before the minimum boiler temperature has
been reached + 5 K.
Parallel pump operation (F + D)
OFF => HW partial priority: The heating circuits are
blocked during hot water preparation. The mixers close
and the heating circuit pumps switch off. The mixer circuits
are enabled again when the heat generator has reached
the temperature of [hot water set temperature + heat gen-
erator superheating]. If the heat generator temperature
drops below the enable temperature by the switching hys-
teresis , the mixer circuits are blocked again.
ON => Parallel pump operation: During hot water heating
all heating circles are continued to heat. The hot water
heating is extended by this function.
Antibacteria function (F-> 65 °C)
Every 20th heat-up operation, or once per week, the stor-
age tank is heated to 65 °C.
Without operating module: In the case of fist charging after
one week has elapsed (Time indefinitely)
With operating module: On Saturday at 01:00 hrs.
Sensor selection (5 k NTC <-> 1 k PTC)
Check the installed sensors (imprint, type plate, or meas-
urement value - see table) and set the switch accordingly.

Functions Explanatory information
12
Functions
Operation without operating module
When the controller is operated without an operating mod-
ule (correspondingly, in the event of the bus connection to
the operating module failing).
0101 => Heat generator module (with boiler sensor KF):
BUS ID - -: The heating circuit pump is running and the
temperature at the heat generator is adjusted to the set
flow temperature (fixed value) if the operating mode is po-
sitioned at RUN and the thermostat input is
switched/bridged or the telephone switch is
switched/bridged (= heating operation).
BUS ID 00: The heating circuit is deactivated, the pump is
running as collector pump during hot water preparation or
when there is a heating requirement from an external heat-
ing circuit.
The hot water storage tank is regulated to the set tempera-
ture. During hot water operation, the HS is regulated to the
temperature HS set temperature + 20 K.
RUN: Hot water preparation 24 h enabled
Telephone switch closed: Hot water preparation enabled
1001 => Mixer module (without boiler sensor KF):
The flow temperature of the associated heating circuit or
the return flow temperature of the heat generator (sensor
position) is regulated to the flow temperature set value
(fixed value) set at the controller. Here the set mixer dy-
namics forms the basis.
If an outdoor sensor is connected, a weather-dependent
calculation of the flow set value is performed.
If a room sensor is connected, a room temperature de-
pendent regulation to the specified room set value is acti-
vated.
Control of the flow temperature
Weather-dependent control
The heat generator or flow temperature is determined via
the set heat slope to suit the measured outside tempera-
ture in such a way that the set value for the room is ap-
proximately set if the heating system is configured
correctly.
=> Exact setting of the heat slope is extremely important
for weather-dependent control.
The circulation pump is controlled weather-dependently.
The circulation pump is switched on if there is a heating
demand and in Frost-protection mode.
Room sensor influence
The current room temperature can be included in computa-
tion of the required flow temperature via a present room
temperature sensor.
The influence factor (parameter list) can be set between 0
(fully weather-dependent regulation) and 20 (room tem-
perature regulation with minimal outdoor temperature in-
fluence). Position "----" deactivates room temperature con-
trol. Positions "----" and "0" indicate differences for
demand-dependent circulation pump control.

Explanatory information Functions
13
Mode of operation cooling (only as 1001 mixer opera-
tion)
The air conditioning by the central automatic controller is
supported. When activation over BUS: Mixer open and
pump on and/or regulation on advance desired value by a
BM.
Operation using operating module
0101 => Heat generation module: The operating module
calculates the requirement for the heat generator. This
temperature is provided by the controller. The pumps and
the burner are controlled accordingly.
1001 => Mixer module: The mixer adjusts the temperature
to the ideal flow temperature calculated by the operating
module. The operating module functions are described in
the corresponding operating module. For this purpose, the
operating switch must be in the position Automatic (RUN).
Zone control
If separate outdoor sensors are connected to the different
mixer modules, it is possible to implement a zone control.
The outdoor sensor for the mixer circuits on the north side
of a building can be installed on the north side; the outdoor
sensor for the mixer circuits on the south side is installed
on the south side of the building. This ensures that the rel-
evant outside temperature is used for calculating the flow
temperature.
Warm-up temperature (HS min. – 5 K)
Reduces operation in condensation zone. The circulation
pumps are switched off and the mixers are shut until the
boiler has reached the start-up temperature. The function
is cancelled no later than 30 minutes after starting.
Frost protection function
The frost protection circuit prevents the heating system
from freezing by automatically switching on the pump.
Flow sensor frost protection
The frost protection function is activated if the flow tem-
perature drops below 7 °C.
The frost protection function is deactivated if the flow tem-
perature rises above 9 °C.
Frost protection via room sensor
If the room temperature drops below 5 °C the frost protec-
tion function is activated.
The room temperature setting for the relevant heating cir-
cuit is set to 5 °C. The heating circuit is enabled:
the pumps are switched on
the heat request is sent to the heat generator
Outdoor sensor frost protection
The frost protection function is activated if the outside tem-
perature drops below 0 °C. The heating circuit pumps are
activated and the burner is enabled.

Special functions Explanatory information
14
Should the outdoor sensor be defective, the frost protec-
tion temperature is included in the flow calculation.
DHW Relief
The charging pump is not switched until the boiler temper-
ature exceeds the storage tank temperature by 5 K. It is
switched off when the boiler temperature drops below the
storage tank temperature. This prevents the storage tank
from being cooled by the boiler when hot water preparation
starts.
Circulation pump control (not in the case of a fixed
value)
The circulation pumps are switched off if heating is not re-
quired. The mixers are closed at the same time (restart
with 1 K hysteresis).
Heating time:
Outside temperature > room set value + 1 K
Reduction period:
ROOMS-INFL = 0:
The switch-off occurs during the transition to reduction
operation.
Restart: Room temperature < room set value The
pump runs continuously after switching on.
ROOMS-INFL = "--„:
Flow temperature setting < 20 °C.
Special functions
EEPROM check
Every 10 minutes, a check is conducted automatically in
order to establish whether the settings of the controller lie
within the specified limits. If a value is found to be out-of-
range, it is substituted by the related default value. The
range transgression is indicated by the flashing error num-
ber 81.
In this case, the user should check the important settings
of the controller. The error indication symbol goes out after
the unit is restarted (RESET).
Pump blocking protection
The controller effectively prevents the pumps blocking fol-
lowing longer periods out of operation. The integrated pro-
tection function activates for 5 seconds all pumps that
have not been in operation during the past 24 hours
Mixer motor blocking protection
If the mixer was not moved for 24 hours, it is fully opened
once only. The heating circuit pump is switched off during
this time. The maximum flow temperature is monitored.
Cancelled at maximum flow temperature – 5 K.
Delayed pump switch-off
When a heat generator is shut off the assigned pump runs
on for 5 minutes.

Installation Assembly / Dismantling
15
Installation
Assembly / Dismantling
Version 1 => Through the hole at the side
Version 2 => From the front
Mounting material, e.g.:
A: Mounting holes
B: Mounting holes, for assembly on switch box
C: Breakthrough for leading cable through
Dimensions

Electrical connection Controller Installation
16
Electrical connection Controller
Safety extra-low voltage
11 - 14 CAN BUS
15 - 17 FBR2
alternatively:
15 + 16 Lago switch
or room thermostat
18 + 19 Storage tank
sensor
or HW thermostat
alternatively in the
case of mixer flow
sensor
19 + 20 Boiler sensor
21 + 22 Outdoor
sensor
in the case of mixer
for zone control
~230 V; Relay switching capacity 2(2) A, ~250 V
1 N-conductor, mains
2 Power supply, unit
3 Power supply, relay
(bridge 2 to 3)
4 Pump, heatcircuit / HW /
Header
6 Storage tank pump alter-
natively in the case of mixer
mixer CLOSED
9 + 10 Burner
Potential-free alternatively
in the case of mixer
mixer OPEN
(e.g. bridge 10 to 3)
EAttention: For the connection (230 V) fixed or
flexible lines with the factory-standard lead end
sleeves are to be installed.
EAttention: Bus lines and sensor lines are to be
installed separately from supply lines!
!in the event of operation without room thermostat or
with timer switch, short-circuit contacts 15 and 16
using a wire jumper.

Installation Electrical connection, base
17
Electrical connection, base
~230 V; Relay switching capacity 2(2) A, ~250 V
1 N-conductor, mains
2 Power supply, unit
3 Power supply, relay
(bridge 2 to 3)
4 Pump, heatcircuit
/ HW / Header
6 Storage tank pump
alternatively in the case
of mixer
mixer CLOSED
9 + 10 Burner
Potential-free alterna-
tively in the case of
mixer
mixer OPEN
(e.g. bridge 10 to 3)
Safety extra-low voltage
11 - 14 CAN BUS
15 - 17 FBR2
alternatively:
15 + 16 Lago switch
or room thermostat
18 + 19 Storage tank
sensor or HW thermo-
stat
alternatively in the case
of mixer flow sensor
19 + 20 Boiler sensor
21 + 22 Outdoor sensor
in the case of mixer for
zone control
EAttention: For the connection (230 V) fixed or
flexible lines with the factory-standard lead end
sleeves are to be installed.
EAttention: Bus lines and sensor lines are to be
installed separately from supply lines!
!in the event of operation without room thermostat or
with timer switch, short-circuit contacts 15 and 16
using a wire jumper.

Options Installation
18
Options
Provided no separate regulations for protecting the relay
apply, a bridge to supply the relay must be connected be-
tween terminals 2 and 3.
BUS terminating resistor
Attention:
In case of installation in systems with Stand-alone Mixer
control with room device (Lago FB, BM8, etc.)

Installation System diagrams
19
System diagrams
Boiler controller with direct heating circuit and Hot
water
BUS ID: „--„ => Boiler sensor required
°CD: Setting of the flow temperature
!Note settings on the rear side of the controller
Heating circuit operation when:
RUN and thermostat contact closed (bridge)
Telephone switch closed (bridge)
In the case of operating device: Enabled only via BUS
In the case of HW preparation with hot water sensor or
thermostat
°C F/ vb: Set hot water set temperature
Hot water enabled when:
RUN = 24 h
Telephone switch contact closed (bridge)
In the case of operating device: Only enabled via BUS
In the case of weather guidance => Outside sensor re-
quired
°CDSet room set temperature and
SbHeat slope
In the case of room control with room sensor or FBR
°CDSet room set temperature and
RbRoom sensor influence
In the case of weather guidance or/and room control
°CD: Setting of the maximum flow temperature
In the case of operation with operating module
°CD,°CD,Rb,Sb,°C F/ vb:
Settings only on operating module => At controller, display
only

System diagrams Installation
20
Boiler controller with Header pump / mixer motor ex-
pansion