brummerhoop Lago 0321 User manual

Safety
Operating and installation instructions
Liability
We will not be held liable for damages resulting from non-observance
of the instructions and non-compliant use.
Safety instructions
Information that is relevant for safety is indicated in the instructions
as follows:
DANGER
Indicates potentially fatal situations.
WARNING
Indicates possible danger to life and limb.
CAUTION
Indicates possible material damage.
All work and settings in the chapters “Expert” may only be carried
out by a qualified technician. Electrical interventions may only be
carried out by a qualified electrician. The heating system must be
disconnected from the power supply before any electrical work is
carried out on the unit.
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 Techni-
cal data.
Please read and keep in a safe place
Please read through these instructions carefully before
installing or operating. Following the installation, pass the instruc-
tions on to the operator.
These instructions can also be found at www.docuthek.com.
Explanation of symbols
•, 1 ,  ,  ... = Action
▷= Instruction
Safety
Heating Controller Lago 01

2
Table of contents
Heating Controller Lago 01 .........................1
Safety.............................................1
Table of contents ...................................
Verify type of application.............................6
Type designation codes ...............................6
Part designations ....................................6
Selector switch ...........................................6
Display .................................................7
User – Settings .....................................8
Set time and day of the week...........................8
Set the desired temperature............................8
Desired room temperature Day . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Setback temperature (desired room temperature Night) ............8
Desired hot water temperature ...............................8
Display actual temperatures ............................8
Set operating mode ..................................8
Standby/OFF ..........................................9
1 Automatic mode 1 .....................................9
2 Automatic mode 2 .....................................9
Day mode ............................................9
Night mode (reduced night mode) ..........................10
Summer mode ........................................10
Service ..............................................10
HO Holiday ..........................................10
Set heating program 1 ...............................11
Set heating program 2 ...............................11
Load factory settings (Reset) ..........................12
User – Set parameters ..............................1
List of parameters P01 to P19...............................13
Explanation of the parameters .........................14
P01 – P07 Heating program 2 (Monday to Sunday) ...............14
P08 Operating mode direct heating circuit (HC1)/
P13Operating mode mixer circuit (HC2) .......................14
P09 Heat slope direct heating circuit/
P14Heat slope mixer circuit ................................14
P10 Room sensor influence direct heating circuit/
P15 Room sensor influence mixer circuit.......................15
P11 Room sensor correction direct heating circuit/
P16 Room sensor correction mixer circuit ......................15
P18 Hot water according to program .........................15
P19 Indication of heating program at the lower margin of the display .16
User – Questions ..................................16
How do I switch to summer/winter time? .................16
How do I set the heating controller so that it gets warm
sooner in the morning? ..............................16
My heater does not get warm enough. What can I do? ......16
How do I set the heating system for holidays? .............17
How can I switch the heating system off during the summer? . 17
Is it possible to let the heating system run longer in the
evening for special occasions such as a party? ............17
How do I set the heating controller to save energy? .........17
Which room is allocated to which heating circuit? ..........17
My heating system is not running .......................17
Table of contents

3
Table of contents
Expert - Installation ................................18
Expert - Electrical connections ......................18
Define application...................................18
Connection diagram controller without socket .............21
Connection diagram controller with socket................22
Options ..........................................23
Maximum limiter .........................................23
Examples of installations .............................24
Heating system controller for heat source, mixed heating circuit and
hot water preparation .....................................24
Heating system controller for mixed heating circuit and hot water
preparation from a buffer storage tank.........................25
Heating system controller for direct heating circuit, mixed heating
circuit and hot water preparation .............................26
Controller for a mixed heating circuit as expansion for a heating
system controller .........................................27
Controller for a heat source in a cascade: Heating module .........28
Internal hot water preparation of the first heat source in the cascade
(hydraulic separation)......................................30
Expert – Set DIP switches ...........................1
Direct heating circuit or multifunction relay......................31
Assigning a remote control FBR2 to the direct heating circuit or
mixer circuit.............................................31
Set sensor resistance .....................................31
Expert – Set parameters ............................
List of parameters P20 to P99 .........................33
Explanation of the parameters .........................34
P20 Code no. input .......................................34
P21 code no. change .....................................34
P22 Outside temperature frost protection ......................34
P23 CAN bus ID mixer circuit (heating circuit address) ............34
P30 Maximum heat source temperature .......................34
P31 Heat source minimum temperature .......................34
P32 Warm-Up Temp .....................................34
P33 Minimum limit heat source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
P34 Dynamic switching hysteresis ...........................35
P35 Hysteresis time ......................................35
P36 Burner starts ........................................35
P37 Burner operating time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
P38 Address heating module (only for cascade operation) .........35
P50 DHW Relief (charging pump lock) ........................35
P51 Parallel pump operation ...............................35
P52 Antilegion function ....................................36
P53 Temperature increase during hot water preparation ..........36
P60 Maximum flow temperature direct heating circuit ............36
P61 Minimum flow temperature direct heating circuit .............36
P69 Additional mixer functions (P77 – 79) ......................36
P70 Maximum flow temperature mixer circuit ...................36
P71 Minimum flow temperature mixer circuit ...................36
P72 Mixer Dynamic OPEN (when opening)/
P73 Mixer Dynamic CLOSED (when closing) ....................36
74 T-Flow Cooling (flow temperature Cooling) ...................37
P75 T-Room Cooling (desired room temperature) ................37
P76 Min TO Cooling (Minimum outside temperature for cooling) .....37
P77 Mixer scan time ......................................38
P78 Mixer operating time limit ..............................38
P79 Mixer start seconds ...................................39
P80 MF Relay function ....................................39
P81 Switching temperature of the multifunction relay .............40
P82 Multifunction relay hysteresis ............................40
P97 PC enable (0000 = disabled) ............................40
P98 Relay Test ..........................................40
P99 Software version and index (63.XX) .......................40
Expert – Checklist for commissioning .................41

4
Table of contents
Service...........................................4
STL Test .........................................42
Accessories ......................................4
Operating module Merlin BM, BM8, or remote control Lago
FB ..............................................43
Merlin BM ..............................................43
Lago FB ...............................................43
PC Adapter .......................................43
CoCo PC active..........................................44
CoCo PC mobile .........................................44
Remote control and room sensor FBR2 ................44
Room sensor RFB ................................44
Outside sensor AF/AFS .................................45
Boiler sensor KF/KFS
Storage sensor SPF/SPFS ...............................45
Flow sensor VF/VFAS ....................................45
Sensor values ...........................................46
Help with faults....................................47
Technical data ....................................49
Glossary .........................................50
Flow and return flow temperature.......................50
Desired and actual temperature ........................50
Setback temperature ................................50
Heat source .......................................50
Circulation pump ...................................50
Direct heating circuit.................................50
Mixed heating circuit / Mixer circuit .....................50
Heating time.......................................50
Header pump......................................51
Feed pump .......................................51
Legionella.........................................51

5
Table of contents
Certification ......................................51
Declaration of conformity .............................51
Eurasian Customs Union .............................51
Heating circuit allocation ...........................5
For the installation expert .............................52
Contact ..........................................5

6
Verify type of application
Verify type of application
Heating controller to be used as a
– heating system controller,
– mixer extension or
– as a controller for a heat source in a cascade,
for further explanation see page 18 (Expert - Electrical connections).
The heating controller regulates two independent heating circuits:
one indirect heating circuit and one mixer circuit.
The function is only guaranteed within the specified limits, see page
49 (Technical data).
Any other use will be deemed improper use.
Type designation codes
Code Description
Lago Heating controller
0On//Off boiler control
Mixer circuit and hot water preparation
Temperature-controlled multifunction relay
1CAN bus communication
Part designations
Mo Tu We Th Fr Sa So
1/
1
OK
>1s
°C
Mode
Time
OK⇒Mo–Su
°C
°C
1
Sa–Su
1
Mo–Fr
1
2
3
4
4
5
1Selector switch
Rotary knob
for changing the set values and displaying the temperatures
OK button
for displaying the desired temperature of the heat source, for
confirming settings, and the for testing the Safety Temperature
Limiter
4Assembly holder of the controller
5Cable feed-throughs
Selector switch
Standard
Mode Operating mode selection
°C Desired room temperature Day (for both heating
circuits)
°C Setback temperature (for both heating circuits)
°C Desired hot water temperature
Sa – Su Heating program 1 from Saturday to Sunday
Mo – Fr Heating program 1 from Monday to Friday
Parameter setting for User and Expert
Time Setting the time and the day of the week

7
Verify type of application
Display
Mo Tu We Th Fr Sa Su
1/
1 2
1
2
3
4
6
7
5
1Days Monday – Sunday underlined
Communication to devices on the CAN bus (such as Lago FB,
BM8, Merlin BM)
Status indications:
Burner,
Mixer circuit pump,
Hot water enabled,
Storage charging pump,
Mixer open,
Mixer closed,
Room temperature,
/1 Multifunction relay /Pump direct heating circuit
4Heat source temperature (When used as a mixer expansion,
"--" is displayed.)
5Time
6Operating modes:
Operational readiness/OFF (Heating and hot water
preparation OFF, frost protection operation only)
1Automatic mode 1 (Heating according to heating program
1, hot water according to parameter 18)
2Automatic mode 2 (Heating according to heating program
2, hot water according to parameter 18)
Day mode (24 hour heating with desired room temperature
Day, hot water according to parameter 18)
Night mode (24 hour heating with setback temperature, hot
water according to parameter 18)
Summer mode (Heating OFF, hot water according to
parameter 18)
Service (Heat source controls to maximum heat source
temperature.)
Holiday mode (During holidays the rooms are heated to 15
°C, after the holidays the rooms are automatically heated
according to heating program again.)
7Display of the heating times

8
User – Settings
User – Settings
Set time and day of the week
1 Turn selector switch to Time.
 Press the OK button.
▷Display flashes.
 Set time with rotary knob.
4 Press the OK button.
5 Set day of the week with rotary knob.
6 Press the OK button.
▷The new time and the day of the week is displayed.
7 Turn selector switch back to .
▷ To cancel the settings without saving, turn the selector switch
back to at any time.
Set the desired temperature
Desired room temperature Day
▷Active during heating times
1 Turn selector switch to °C .
Setback temperature (desired room temperature Night)
▷Active between heating times
1 Turn selector switch to °C .
Desired hot water temperature
1 Turn selector switch to °C .
All three temperatures
 Press the OK button.
▷Display flashes.
 Set day of the desired temperature with rotary knob.
4 Press the OK button.
▷The new desired temperature is displayed.
5 Turn selector switch back to .
Display actual temperatures
1 Turn selector switch to .
 Use the rotary knob to set one of the following temperature indi-
cations:
H1 to H8
+ Room temperature for up to 8 heating circuits
AF Outside temperature
*) Heat source and concurrently flow temperature of the
direct heating circuits (1st HC)
*) Flow temperature of the mixer circuit (2ndHC)
*) Hot water temperature
FF *) Multifunction sensor temperature
* The desired temperature is displayed when the OK button is pressed.
▷If a sensor is not connected, the display will show -- --.
▷ The display reverts to the standard indication after a few seconds
without action.
Set operating mode
The operating mode determines how the heating controller works.
Whether the heating system is to be controlled automatically or manu-
ally, during a party for example. Or how should the heating system
be controlled during longer periods of absence such as holidays?
▷
The heating controller leaves the factory with the setting
Standby/OFF. The operating mode must be changed for normal
operation.
1 Turn selector switch to “Mode”.
 Press the OK button.

9
User – Settings
▷Display flashes.
 Set the operating mode using the rotary knob.
4 Press OK after you have selected your setting.
▷The new operating mode is displayed.
5 Turn selector switch back to .
▷ All operating modes have an effect on the heat source and on
both internal heating circuits of the controller. A different mode
can be assigned to each heating circuit individually, see page 12
(User – Set parameters).
▷If the controller is used as a heating system controller, all heating
circuits of the system are deactivated for operating modes and
. This only applies to the associated heating circuit when used
as a mixer expansion.
Example: Installation with three mixed heating circuits and
hot water preparation
#3
Lago 0321
#1
Lago 0321
#2
Lago 0321
1
Lago #1
1
1
1
1
#2
1
#3
off off
on on
off
off
off
off
off
on
offon
Lago#1 controls the first heating circuit and hot water. Lago #2
controls the second heating circuit and Lago #3 the third. If mode
was selected for Lago #1, the entire system will be switched off,
regardless of the settings for the other controllers.
You can set the following operating modes
Standby/OFF
Heating and hot water preparation are deactivated. Only the frost
protection function remains active.
1 Automatic mode 1
Heating occurs according to heating program 1: Heating occurs at
identical times for Monday – Friday, as well as Saturday – Sunday. Hot
water according to parameter 18, see page 11 (Set heating program 1).
 Automatic mode 
Heating occurs according to heating program 2: You can set Individual
heating times for each day. Hot water according to parameter 18,
see page 11 (Set heating program 2).
▷ Toggling between Automatic mode 1 and 2 can be useful for shift
workers. The times do not need to be entered for each shift - they
only need to be switched over.
Day mode
Heating occurs for 24 hours to desired room temperature Day. Hot
water according to parameter 18, see page 8 (Set the desired tem-
perature).
This setting is required for events such as a party, when the heat-
ing period in automatic mode will not be sufficient. Do not forget to
switch back to automatic mode once the party is over.

10
User – Settings
Night mode (reduced night mode)
Heating is reduced to the setback temperature for 24 hours.
Hot water according to parameter 18, see page 15 (P18 Hot water
according to program).
This setting can be used to save energy; in exceptional cases when
no-one is going to be home during the day over a longer period of
time for example. Do not forget to switch back to automatic mode
once the party is over.
Summer mode
The heating system is switched off to save energy. Parameter 18 for
hot water must be set to 1, 2 or 4, see page 12 (User – Set parameters).
Service
The heat source heats to the max. temperature set in parameter
30. As soon as the temperature of 65 °C has been reached, the
consumers regulate to their max. flow temperature for heat removal.
Automatic reset after 15min.
HO Holiday
During holidays the room temperature is regulated to 15 °C.
▷If parameter 18 is set to 3, hot water preparation is deactivated,
see page 15 (P18 Hot water according to program). If parameter
18 is set to 0, 1, 2 or 4, the HO Holiday mode has no effect
on the hot water preparation.
Example: Setting HO Holiday operating mode
You leave on Monday and return Thursday evening. Before leaving
on Monday program:
Mo Tu We Th Fr Sa So
1/
1
OK
>1s
°C
Mode
Time
OK⇒Mo–Su
°C
°C
1
Sa–Su
1
Mo–Fr
Mo Tu We Th Fr Sa So
1/
1
OK
>1s
°C
Mode
Time
OK⇒
Mo–Su
°C
°C
1
S
a–Su
1
Mo–Fr
1 Turn selector switch to „Mode“.
Mo Tu We Th Fr Sa So
1/
1
▷The display shows the current operating mode
(e.g. automatic mode 1)
Mo Tu We Th Fr Sa So
1/
1
OK
>1s
°C
Mode
Time
OK⇒Mo–Su
°C
°C
1
Sa–Su
1
Mo–Fr
Mo Tu We Th Fr Sa So
1/
1
OK
>1s
°C
Mode
Time
OK⇒Mo–Su
°C
°C
1
Sa–Su
1
Mo–Fr
 Press the OK button.
▷Display flashes.
Mo Tu We Th Fr Sa So
1/
1
OK
>1s
°C
Mode
Time
OK⇒Mo–Su
°C
°C
1
Sa–Su
1
Mo–Fr
Mo Tu We Th Fr Sa So
1/
1
OK
>1s
°C
Mode
Time
OK⇒Mo–Su
°C
°C
1
Sa–Su
1
Mo–Fr
Mo Tu We Th Fr Sa So
1/
 Rotate the rotary knob clockwise until HO 4
flashes in the display.
▷ HO 4 indicates that 4 absent days have been pro-
grammed (in this example Mon, Tue, Wed and
Thu).
Mo Tu We Th Fr Sa So
1/
1
OK
>1s
°C
Mode
Time
OK⇒Mo–Su
°C
°C
1
Sa–Su
1
Mo–Fr
Mo Tu We Th Fr Sa So
1/
1
OK
>1s
°C
Mode
Time
OK⇒Mo–Su
°C
°C
1
Sa–Su
1
Mo–Fr
4 Press the OK button.
▷The display shows HO 4.