Buderus Logamatic EMS RC35 User manual

Operating instructions Room controller
Logamatic EMS
6 720 618 477-00.1RS
Programming unit RC35
6 720 801 386 (2011/05) GB

Overview of controls
Logamatic EMS – 6 720 801 386 2011/05
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Overview of controls
Key to diagram:
1Flap; pull the recessed grip on the
left to open
2Display
3Rotary selector for changing values
and temperatures or for moving
within the menus
4 Keys for basic functions: When the LED lights up,
“AUT” (automatic) • the switching program is active (automatic changeover between
day and night room temperatures).
“Day mode” (manual) • the heating system operates at the set day room temperature.
The DHW is switched on (basic setting).
“Night mode” (manual) • the heating system operates at the set night room temperature.
Frost protection is active.
DHW heating is off (default setting).
“DHW” • the DHW temperature has fallen below its set value. The DHW
can be reheated by pressing the button (the LED will then flash).
5Keysfor
additional functions:
Function:
“Menu/OK” Open the user menu and confirm the current selection.
When the rotary selector is turned simultaneously: change setting.
“Clock time” Set the time.
“Date” Set the date.
“Flow/returntemperature” Set the room temperature.
“Info” Open the Info menu (to view values).
“Back” Go back one step or one menu item.
In automatic mode the LED for the display of the current operating mode (“day mode” or “night mode”) also
lights up in addition to the LED “AUT”. Exception: with boilers with UBA1.x only the LED “AUT” lights up.
The “DHW” LED can also be switched off. With boilers with UBA1.x the “DHW” LED does not light up at all.
6 720 618 477-08.1RS
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Logamatic EMS – 6 720 801 386 2011/05 3
Table of contents
Table of contents
Overview of controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Guide to instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1 Key to symbols and safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Information about the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Correct use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3 EU Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.4 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.5 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Principles of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2 Notes on range of functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3 Setting the operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4 Changing the room temperature temporarily . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.5 Changing the room temperature permanently . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.6 Setting the room temperature for particular heating circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.7 Setting the date and time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.8 Setting DHW functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.9 Viewing information (Info menu) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.10 Messages on the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.11 Shutting down/switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5 Operation with the user menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.1 Introduction to the user menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.2 Overview of the user menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.3 Selecting a heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.4 Setting standard display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.5 Selecting the operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.5.1 Operating modes for RC35 heating circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.5.2 Operating modes for DHW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.5.3 Operating modes for DHW circulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.5.4 Operating modes for solar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.6 Setting the switching program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table of contents
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5.6.1 Selecting a program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.6.2 Viewing the current program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.6.3 Changing the switching point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.6.4 Entering a switching point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.6.5 Deleting a switching point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.6.6 Setting room temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.7 Setting a DHW program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.8 Setting a DHW circulation program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.9 Setting the switchover threshold for summer/winter mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
5.10 Setting the summer/wintertime changeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.11 Setting the domestic hot water temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.12 Setting holiday mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.13 Setting the party function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.14 Setting the pause function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.15 Setting thermal disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
5.16 Calibrating the room temperature display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
5.17 Setting the preheating phase for a Loganova gas heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.18 Setting energy price ratio for hybrid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6 Information on setting the programming unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.1 Control modes for heating control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.2 Tips for energy efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7.1 Frequently asked questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7.2 Fault messages and service messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.3 Clearing faults (reset) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8 Setup report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
9 User overview of RC35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Logamatic EMS – 6 720 801 386 2011/05 5
Guide to instructions
Guide to instructions
These operating instructions contain all information on the function and operation of the Logamatic
RC35 programming unit.
Introduction to the user menu
Chapter 5.1 explains in detail the steps needed for programming all the settings in the user menu.
Operation is only briefly dealt with in the following sections.
Display texts
Words appearing on the display are shown in bold in the text.
Example: USER MENU standard display
operation modes
switching programme
sum./win. threshold
USER MENU

Key to symbols and safety instructions
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1 Key to symbols and safety instructions
1.1 Explanation of symbols
Warnings
Keywords at the start of a warning indicate the type and severity of the ensuing risk if measures to
prevent the risk are not taken.
•NOTE indicates that material losses may occur.
•CAUTION indicates that minor to medium injury may occur.
•WARNING indicates that serious injury may occur.
•DANGER indicates a risk to life.
Important information
Additional symbols
Warnings in this document are framed and identified by a warning triangle printed
against a grey background.
If there is a risk of electric shock, the exclamation mark in the warning triangle is
replaced by a lightning symbol.
Important information where there is no risk to people or property is indicated with the
adjacent symbol. It is bordered by lines above and below the text.
Symbol Explanation
BAction step
ÆCross-reference to other parts of this document or to other documents
• List/list entry
– List/list entry (second level)
Table 1

Logamatic EMS – 6 720 801 386 2011/05 7
Key to symbols and safety instructions 1
1.2 Safety instructions
Installation and commissioning
BObserve these instructions to ensure satisfactory operation.
BThe appliance must only be installed and commissioned by an authorised installer.
Damage through operator error
Operator errors can lead to injuries and/or material losses.
BEnsure that children never operate this appliance unsupervised or play with it.
BEnsure that only individuals who can operate this appliance correctly have access to it.
Risk of scalding at the hot water draw-off points
BDuring thermal disinfection: do not draw DHW without mixing in cold water as well.
BIf the DHW temperatures are set to above 60 °C: do not draw DHW without mixing in cold water
as well.
Warning: frost
The heating system can freeze up in cold weather if it is not in operation:
BLeave the heating system permanently switched on.
BIn case of faults: remedy any faults immediately.

Getting started
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2
2 Getting started
Initial situation: the flap is closed.
What do I do ... Operation Display/result
if it is temporarily
too cool/warm on
this day throughout
the whole home?
BTurn rotary selector.
The current room temperature setting
starts flashing.
BSet the desired room temperature with
the rotary selector.
BLet go of the rotary selector.
The modified room temperature is saved
(and stops flashing).
The standard display reappears.
In automatic mode, the modified room
temperature remains active until the next
changeover between night/day mode.
if it is permanently
too cool/warm in the
entire home?
ÆChanging room
temperature and
activating automatic
mode.
BChanging the day room temperature:
Hold the button pressed down and
simultaneously turn the rotary
selector.
BChanging the night room temperature:
Hold the button pressed down and
simultaneously turn the rotary
selector.1)
BWe recommend activating automatic
mode:
Press button.
The modified room temperatures are
saved. The LED next to the button
lights up.
Table 2 Getting started – room temperatures
SET ROOM TEMPERATURE
Until next switch
point, room temp.
changed to:
SET ROOM TEMPERATURE
Room temperature
setting for daytime
operation.
Automatic operation
selected.
Change between:
day:
night:

Logamatic EMS – 6 720 801 386 2011/05 9
Getting started 2
Getting started – additional functions
for one-off heating
outside the usual
times (outside the
switching
program)?
ÆManual day mode
(“continuous
heating“); automatic
mode is switched
off
BActivate manual day mode: press .
The LED next to the button lights up.
To end the one-off heating phase:
BActivate automatic mode again:
press .
The LED next to the button lights up.
to save energy
during long
absences?
ÆManual night
mode (“permanently
reduced”);
automatic mode is
switched off
BActivate manual night mode: press .
The LED next to the button lights
up.1)
When you return:
BActivate automatic mode again:
press .
The LED next to the button lights up.
1) If 'Shutdown' is set as the night reduction mode, the heating is shut down at night. A night time room
temperature cannot be set. The display will show a message to this effect.
With larger heating systems with several heating circuits please note:
The changes in room temperature described above apply to all heating circuits, which
are allocated to the RC35 programming unit (so-called RC35 heating circuits Æ
page 26). This is the standard application.
However, if you wish to change the room temperature for other heating circuits: see
page 37.
Some of the following functions are accessible via the user menu. To learn how to use
this menu, read the section starting on page 23.
What do I do ... Operation Display/result
Table 2 Getting started – room temperatures
You have selected
daytime operation.
The room temperature
set is:
You have selected
nighttime operation
The room temperature
set is:

Getting started
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2
What do I do ... Operation Display/result
to save energy when
on holiday?
BSet holiday mode in the user menu
(Æpage 40).
to change the
holiday
temperature?
Requirement: holiday mode is active.
BTurn rotary selector.
The room temperature is changed for the
rest of the holiday period.
in summer (DHW
only, no central
heating)?
The programming unit switches automatically
between summer mode and winter mode,
triggered by temperature. However, if you
want to switch the system over manually:
BAt the boiler programming unit set the
rotary selector to “0” or deactivate the
heating system.
BLeave the RC35 settings unchanged.
Example: BC10 on the
boiler
if I feel too cool or
too warm in spring
or autumn?
BChange the setting for the summer/winter
switchover threshold in the user menu
(Æpage 39).
-or-
BUse manual mode.
when the clocks
change between
summer and
wintertime?
The RC35 programming unit automatically
adjusts its clock for summer or wintertime
(Æpage 39).
if my day/night
rhythm changes
(e.g. shift work)?
BSelect a different switching program in the
user menu (Æpage 31).
BIf necessary, adjust the switching program
to suit your needs: change, insert or delete
switching points (Æpage 34).
to change the
contrast on the
display?
BChanging the contract: hold the and
buttons pressed down and
simultaneously turn the rotary
selector.
Table 3 Getting started – additional functions
SET HOLIDAY MODE
Room temperature set
for holiday mode: