Daikin EHS157034 User manual

Operating instructions
Daikin
RoCon HP
EHS157034
EHS157068
Daikin Controller RoCon HP, EHS157034, EHS157068
Operating instructions
Daikin Controller RoCon HP, EHS157034, EHS157068 English

List of contents
Operating instructions
2
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Observing instructions . . . . . . . . . . . . . . . . . . . . 4
1.2 Warning signs and explanation of symbols . . . . 4
1.2.1 Meaning of the warnings . . . . . . . . . . . . . . . . . . . . .4
1.2.2 Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.2.3 Handling instructions. . . . . . . . . . . . . . . . . . . . . . . .5
1.2.4 Display readouts of the RoCon-Controller . . . . . . .5
1.3 Avoiding danger . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Product description. . . . . . . . . . . . . . . . . . . 6
3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Display and operating elements. . . . . . . . . . . . . 7
3.2.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.2.2 Operating elements. . . . . . . . . . . . . . . . . . . . . . . . .9
3.3 Operating concept . . . . . . . . . . . . . . . . . . . . . . 10
3.4 Basic functions and operating modes . . . . . . . 11
3.4.1 System information (Info) . . . . . . . . . . . . . . . . . . .11
3.4.2 Setting the operating mode . . . . . . . . . . . . . . . . . .13
3.4.3 Temperature setting Daytime room temperature .15
3.4.4 Temperature setting Economy mode . . . . . . . . . .15
3.4.5 Temperature setting hot water generation . . . . . .15
3.4.6 Unscheduled hot water generation . . . . . . . . . . . .15
3.4.7 Switching time program. . . . . . . . . . . . . . . . . . . . .16
3.4.8 System settings. . . . . . . . . . . . . . . . . . . . . . . . . . .18
3.4.9 Terminal function. . . . . . . . . . . . . . . . . . . . . . . . . .18
3.4.10 Quite Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3.4.11 SMART GRID (SG) . . . . . . . . . . . . . . . . . . . . . . . .20
3.5 Special functions . . . . . . . . . . . . . . . . . . . . . . . 20
3.5.1 Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . .20
3.5.2 Reference run 3-way diverter valve . . . . . . . . . . .21
3.6 Special system settings . . . . . . . . . . . . . . . . . . 21
3.6.1 Access Rights (Technician password) . . . . . . . . .21
3.6.2 Heat curve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
3.6.3 Cooling characteristic curve . . . . . . . . . . . . . . . . .23
3.6.4 Weather-controlled flow temperature regulation . .24
3.6.5 Frost protection function . . . . . . . . . . . . . . . . . . . .24
3.6.6 Interlink function . . . . . . . . . . . . . . . . . . . . . . . . . .25
3.6.7 Additional alternative heat generator . . . . . . . . . .25
3.6.8 Heating support. . . . . . . . . . . . . . . . . . . . . . . . . . .26
3.6.9 Special function: Switching contacts . . . . . . . . . . .26
3.6.10 Air Purge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
3.6.11 Legionella protection. . . . . . . . . . . . . . . . . . . . . . .27
3.6.12 Reset to factory settings (Reset). . . . . . . . . . . . . .27
3.6.13 Screed Program . . . . . . . . . . . . . . . . . . . . . . . . . .28
3.6.14 Relay Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
3.6.15 Settings for optional circulation pump . . . . . . . . . .30
3.6.16 Remote control via Internet . . . . . . . . . . . . . . . . . .31
4 Initial start-up. . . . . . . . . . . . . . . . . . . . . . . 32
4.1 Fundamental aspects of the IDs and 
authorisations in the RoCon system . . . . . . . . 32
4.2 Operating Support during 1st. Commissioning 
and during System Extensions . . . . . . . . . . . . 34
4.3 Starting up the Daikin Altherma EHS(X/H). . . . 34
4.3.1 Allocating the terminal ID on the control unit
RoCon B1 of the Daikin Altherma EHS(X/H) . . . .34
4.4 Commissioning optional RoCon 
system components . . . . . . . . . . . . . . . . . . . . . 34
4.4.1 Mixer module EHS157068 . . . . . . . . . . . . . . . . . .34
4.4.2 Room station EHS157034. . . . . . . . . . . . . . . . . . .35
4.4.3 Allocating mixing module EHS157068 to a 
heat generator. . . . . . . . . . . . . . . . . . . . . . . . . . . .36
4.4.4 Master-RoCon function . . . . . . . . . . . . . . . . . . . . .36
4.4.5 Caretaker function. . . . . . . . . . . . . . . . . . . . . . . . 36
5 Parameter Overview . . . . . . . . . . . . . . . . . .37
5.1 For first commissioning or resetting to 
factory settings . . . . . . . . . . . . . . . . . . . . . . . . 37
5.2 After first commissioning / after successful 
basic configuration . . . . . . . . . . . . . . . . . . . . . 38
5.2.1 Rotary switch setting: Configuration . . . . . . . . . . 38
5.2.2 Rotary switch setting: DHW Install . . . . . . . . . . . 39
5.2.3 Rotary switch setting: Operating Mode . . . . . . . 39
5.2.4 Rotary switch setting: Set Temp Day . . . . . . . . . 39
5.2.5 Rotary switch setting: Set Temp Night . . . . . . . . 39
5.2.6 Rotary switch setting: DHW Set Temp . . . . . . . . 39
5.2.7 Rotary switch setting: Time Program . . . . . . . . . 39
5.2.8 Rotary switch setting: Remote Param . . . . . . . . 39
5.2.9 Rotary switch setting: Info . . . . . . . . . . . . . . . . . 39
5.2.10 Exit button: Sonderfunktion . . . . . . . . . . . . . . . . . 39
5.3 Parameter levels for the EHS157068 
mixer module. . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.3.1 Rotary switch setting: Info . . . . . . . . . . . . . . . . . 39
5.3.2 Rotary switch setting: Operating Mode . . . . . . . 39
5.3.3 Rotary switch setting: Set Temp Day . . . . . . . . . 39
5.3.4 Rotary switch setting: Set Temp Night . . . . . . . . 39
5.3.5 Rotary switch setting: DHW Set Temp . . . . . . . . 39
5.3.6 Rotary switch setting: DHW Install . . . . . . . . . . . 39
5.3.7 Rotary switch setting: Time Program . . . . . . . . . 40
5.3.8 Rotary switch setting: Remote Param . . . . . . . . 40
5.3.9 Rotary switch setting: Configuration . . . . . . . . . . 40
6 Parameter settings . . . . . . . . . . . . . . . . . . .41
6.1 Explanation of the parameter tables . . . . . . . . 41
6.2 Rotary switch setting: Configuration . . . . . . . . 41
6.2.1 Level "Setup". . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.2.2 Level "System " . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.2.3 Level "HC Configuration". . . . . . . . . . . . . . . . . . . 46
6.2.4 Level "DHW Configuration" . . . . . . . . . . . . . . . . . 48
6.3 Rotary switch setting: DHW Install . . . . . . . . . 48
6.4 Rotary switch setting: Operating Mode . . . . . 48
6.5 Rotary switch setting: Set Temp Day . . . . . . . 49
6.6 Rotary switch setting: Set Temp Night . . . . . . 49
6.7 Rotary switch setting: DHW Set Temp . . . . . . 49
6.8 Rotary switch setting: Time Program . . . . . . . 50
6.9 Rotary switch setting: Remote Param . . . . . . 50
6.10 Rotary switch setting: Info . . . . . . . . . . . . . . . 51
6.11 Exit button: Sonderfunktion . . . . . . . . . . . . . . . 51
6.12 Parameter level "Basic Configuration" . . . . . . 52
6.13 Parameter levels for the EHS157068 
mixer module. . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.13.1 Rotary switch setting: Configuration, 
level "Setup" . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.13.2 Rotary switch setting: Configuration, 
level "Mixer Config" . . . . . . . . . . . . . . . . . . . . . . . 54
7 Errors, malfunctions and messages . . . . .56
7.1 Recognising errors, correcting malfunctions . . 56
7.1.1 Current fault display . . . . . . . . . . . . . . . . . . . . . . 56
7.1.2 Read Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
7.1.3 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . 56
7.2 Emergency operation . . . . . . . . . . . . . . . . . . . 57
7.3 Malfunctions and fault codes. . . . . . . . . . . . . . 57
8 Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . .58

List of contents
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
Operating instructions
3
9 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
9.1 User-specific settings . . . . . . . . . . . . . . . . . . . .59
9.1.1 Switching timer program . . . . . . . . . . . . . . . . . . . 59
9.1.2 Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
9.1.3 IDs in the RoCon CAN bus system . . . . . . . . . . . 60
9.2 Other items . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
10 List of keywords . . . . . . . . . . . . . . . . . . . . .63

Operating instructions
4
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
1 xSafety
1 Safety
1.1 Observing instructions
These instructions are a >> translation of the
original version << in your language.
All the activities required for operation and
setting the parameters are described in this in-
struction manual. All parameters needed for
trouble-free operation have been configured at
the factory.
●Please read through this manual carefully
before operating the heating system or before
adjusting the settings for it.
●Make a note of the preset values before you
make any changes to the unit configuration.
Relevant documents
– Daikin Altherma EHS(X/H):
– Installation and maintenance instructions
– Operating instructions for the user/owner
– Commissioning checklist
– External unit for Daikin Altherma EHS(X/H);
the associated installation and operating
instructions.
– When connecting to a solar system; the asso-
ciated installation and operating instructions.
– If a Daikin FWXV(15/20)AVEB is connected;
the associated installation and operating
instructions.
– If a different heater or optional accessories
are connected; the associated installation and
operating instructions.
The guides are included in the scope of supply
for the individual units.
1.2 Warning signs and explanation of
symbols
1.2.1 Meaning of the warnings
Warnings in this manual are classified according
into their severity and probability of occurrence.
DANGER!
Draws attention to imminent danger.
Disregarding this warning can lead to se-
rious injury or death.
WARNING!
Indicates a potentially dangerous situ-
ation.
Disregarding this warning may result in
serious physical injury or death.
CAUTION!
Indicates a situation which may cause
possible damage.
Disregarding this warning may cause
damage to property and the envi-
ronment.
This symbol identifies user tips and par-
ticularly useful information, but not warn-
ings or hazards.
Special warning signs
Some types of danger are represented by
special symbols:
Electric current
Risk of burning or scalding

1 xSafety
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
Operating instructions
5
1.2.2 Validity
Some information in this manual has limited va-
lidity. The validity is highlighted by a symbol.
Only valid for Daikin Altherma EHS(X/H)
with cooling function
Valid/available only if a room station
(EHS157034) is connected
Valid/available only if a mixer module
(EHS157068) is connected
1.2.3 Handling instructions
●Handling instructions are shown as a list.
Actions of which the sequential order must be
maintained are numbered.
Results of actions are identified with an
arrow.
1.2.4 Display readouts of the RoCon-
Controller
Entry into a setting procedure
Exit from a setting procedure
Certain screen displays or menu points may
differ from those shown in these instructions due
to country or equipment variations in the Daikin
Altherma EHS(X/H) or the status of the user
logged onto the Controller.
1.3 Avoiding danger
The Daikin Altherma EHS(X/H) is state-of-the-
art and is built to meet all recognised technical
requirements. However, improper use may result
in serious physical injuries or death, as well as
property damage.
To avoid danger, only operate the Daikin
Altherma EHS(X/H):
– as stipulated and in perfect condition,
– with an awareness of safety and the hazards
involved.
This assumes knowledge and use of the con-
tents of this manual, of the relevant accident pre-
vention regulations as well as the recognised
safety-related and occupational health rules.
WARNING!
1.4 Proper use
The RoCon HP may be used only in Daikin
Altherma EHS(X/H) heat pumps that have been
approved for Daikin the regulating system-
RoCon. The Daikin RoCon HP may only op-
erated only according to the indications in this
manual.
Any other use outside the intended use is con-
sidered as improper. The operator alone shall
bear responsibility for any resulting damage.
For any work on the equipment, which extends
above and beyond the operation of the regu-
lating system, you must observe the details pro-
vided in the supplementary documents, particu-
larly with regard to safety instructions.
This equipment must only be used by
children aged 8 and above and by
persons with restricted physical, sensory
or mental capabilities or with a lack of ex-
perience and knowledge, if they are
under supervision or if they have been
instructed in the safe use of the
equipment and understand the dangers
arising therefrom. Children must not
play with the equipment. Cleaning or
user maintenance must not be carried
out by children without supervision.

Operating instructions
6
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
2 xProduct description
2 Product description
The Controller RoCon HP is part of the Daikin
Altherma EHS(X/H).
It consists of the RoCon BM1 control panel to which
the actuators and sensors, as well as other compo-
nents in the Daikin RoCon regulating system, are con-
nected, and the RoCon B1 operating unit.
In this instruction manual we explain just the functions
and setting possibilities of the Controller. More infor-
mation on the Daikin Altherma EHS(X/H) and other
equipment components can be found in the supple-
mentary documents.
The electronic, digital Controller is able to automatically control all
heating, cooling and hot water functions for a direct heating
circuit, a storage tank charging circuit and optionally connectable
mixer module, depending on the heating unit in question.
It is responsible for all safety management functions of the
Daikin Altherma EHS(X/H). This executes a safety switch-off in
the event of a water shortage or undefined operating states. 
A corresponding fault message shows the operator all the infor-
mation for fault causes.
All function settings for the Daikin Altherma EHS(X/H) and the
optional RoCon devices connected via the data bus are carried
out with the operating elements of the integrated RoCon B1
control panel and displayed in clear text display on a coloured
backlit display.
The regulation data bus can be used to connect the Daikin
Altherma EHS(X/H) to the following optional equipment:
–EHS157034 room station
–EHS157068 mixer module.
In addition, the RoCon HP control unit has a frost protection
function for the direct heating circuit and the storage tank
charging circuit, as well as an automatic function for heating
support (inclusion of an additional source of heat such as a wood-
burning boiler or solar installation).
The potential-free AUX switching contact can be used to carry out
different control functions in conjunction with external devices
(demand from an external heat generator, switching to bivalent
operating mode, external status display, etc.).
In addition, it also has several inputs for assessing external
control contacts (external operating mode switching or heat
demand, SMART GRID- and low-tariff EVU functions(1.
(1 Energy supply company (EVU) sends signals that are used for controlling the
power mains loading, and which have an influence on the cost of the power and
availability.
The weather-controlled flow temperature regulation can be opti-
mised with the RoCon OT1 optional external temperature probe
which can be installed on the north face of the building.
If the EHS157056 optional gateway is installed and connected to
the Internet, the Daikin Altherma EHS(X/H) can be conveniently
monitored and operated by remote control using a mobile phone
(app).
The Controller RoCon HP contains a timer which can be used to
set:
– 2 individually-adjustable timer programmes(2 for room heat-
ing and room cooling (direct heating circuit),
– 2 individually-adjustable timer programmes for hot water gen-
eration,
– 1 individually-adjustable timer programme for an optional cir-
culation pump.
(2 Use of the timer programme for room cooling only possible in combination with
a connected room thermostat
Initial commissioning of the heating system is described in the in-
stallation manual for the Daikin Altherma EHS(X/H).
Certain menu items in the Controller RoCon HP are only acces-
sible to the specialist heating technician. This security measure
ensures that no undesirable malfunctions arise during operation
of the system through incorrect settings.
The EHS157034 room station has the same operating panel as
the Daikin Altherma EHS(X/H) B1 operating element integrated
in the RoCon B1.
All settings for the allocated heating circuit can be carried out in
the same way as the operating unit. With activated terminal
function, all operating possibilities that are available on the inte-
grated operating unit are available, with the exception of certain
special functions (e.g. Manual Operation).
An EHS157068 connected mixer module will also be operated,
after appropriate allocation, by the RoCon B1 control unit and/or
the EHS157034 room station.

3 xOperation
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
Operating instructions
7
3 Operation
3.1 General
DANGER!
If electrical components come into con-
tact with water, this can cause an elec-
tric shock as well as potentially fatal
injuries and burns.
●The displays and the buttons on the
Controller must be protected from
the effects of moisture.
●To clean the Controller use a dry
cotton cloth. Using aggressive
cleaning agents and other liquids
can cause damage to equipment or
lead to an electric shock.
Maximum energy utilisation
The most effective energy utilisation is achieved by the
Daikin Altherma EHS(X/H) at the lowest possible
return flow and hot water temperatures.
If an external heat generator (e.g. the optional Backup
Heater) is used at inflow target temperatures of over
50°C, the efficiency (COP) of the Daikin
AlthermaEHS(X/H) can be affected negatively 
(depending on the outside temperature).
3.2 Display and operating elements
1 Clear text display
2 Setting: Configuration
3 Setting: Remote Param
4 Rotary switch
5 Setting: Info
6 Setting: Operating Mode
7 Setting: Set Temp Day
8 Setting: Set Temp Night
9 Setting: DHW Set Temp
10 Rotary button
11 Setting: DHW Install
12 Setting: Time Program
13 Exit button
Fig. 3-1 Arrangement of display and operating elements

Operating instructions
8
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
3 xOperation
3.2.1 Display
All the operating steps are supported by appropriate displays in a
clear text display on a coloured background.
Menu navigation is available in 7 different languages 
(see section 3.4.8).
Malfunctions are generally indicated by a fault code and
a clear text fault message on the display.
For troubleshooting instructions refer to chapter 7.
The colour of the backlighting indicates the operational status
and the operational mode:
White: Standard lighting, normal operational display.
Red: Fault status, depending on the type of fault, the
Daikin Altherma EHS(X/H) continues to function with
restrictions.
Green: Operating mode with operator authorisation.
Blue: Operating mode with expert technician authori-
sation.
1 Date display
2 Status of refrigerant com-
pressor
3 Status display (e.g. Techni-
cian access rights active)
4 Display time
5 Current flow temperature
6 Status heating circuit
7 Current outdoor temperature
8 Active operating mode
9 Status of hot water genera-
tion
10 Current storage tank temper-
ature
Fig. 3-2 Display of the Controller - standard display

3 xOperation
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
Operating instructions
9
Explanation of symbols
Item
fig. 3-2 Symbol Explanation
2Flashing: Heat pump demand active
Permanently on: Refrigerant compressor is
working
2No connection to the external heat pump
unit
3Access Rights Expert active 
(see section 3.6.1)
2 / 3 Air Purge active (see section 3.6.10)
2 / 3 Terminal function active (see section 3.4.9)
2 / 3 Frost protection function active 
(see section 3.6.5)
2 / 3 "Party" temporary timer programme active
(see section 3.4.7)
2 / 3 "Away" temporary timer programme active
(see section 3.4.7)
2 / 3 "Holiday" temporary timer programme
active (see section 3.4.7)
2 / 3 "Vacation" temporary timer programme
active (see section 3.4.7)
2 / 3 Screed Program active (see section 3.6.13)
5Direct heating circuit
– Under normal conditions, the current
inflow temperature tV, BH is displayed.
– In the case of no demand from the heat
pump, the abbreviation "ES" is dis-
played instead of the current flow tem-
perature.
The control system has switched to
energy saving mode (see
section 3.4.2). Superfluous elec-
tronic components are switched off.
5Mixer circuit
The current inflow temperature of the se-
lected heating circuit is displayed.
5Room temperature sensor
The current room temperature is displayed.
6Heating circuit status
– Heating circuit active (room heating
function)
– Heating circuit active (room cooling
function)
– Heating circuit not active (currently no
heat transfer in the heating circuit)
7Outside temperature sensor
The current outside temperature is dis-
played.
8Current operating mode (see section 3.4.2)
Standby active.
Reducing active.
Heating active.
Cooling active.
Summer active.
Automatic 1 active.
Automatic 2 active.
9Domestic hot water generation active
Domestic hot water generation not active
10 Domestic hot water circuit status
The current storage tank temperature
tDHW1 is displayed.
Tab. 3-1 Explanation of display symbols
3.2.2 Operating elements
CAUTION!
Never operate the operating elements
on the controller with a hard, pointed
object. This can cause damage and can
cause the control unit to malfunction.
If special key combinations or extended key pushes are required
for certain function, a separate note is made in each specific
section of this description.
Rotary switch
The rotary switch is used to gain rapid direct access (main
function level) to frequently required functions and setting op-
tions.
Independent of the setting of the rotary switch, the
Daikin Altherma EHS(X/H) operates in accordance with
the operating mode set in the "Operating Mode"
switch position or that has been activated by a
special programme.
Action Result
Rotating
Direct selection of the main function level allo-
cated to this switch position.
Tab. 3-2 Function of rotary switch
Item
fig. 3-2 Symbol Explanation

Operating instructions
10
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
3 xOperation
Rotary switch
The rotary switch can be used to navigate in the individual levels,
setting values can be selected, changed and these changes can
then be accepted by pressing briefly.
Action Result
Rotating
To the right (+): Increased regulation
To the left (–): Reduced regulation
Pressing
Confirm, accept, selection and execute the
function.
Tab. 3-3 Functions of the rotary switch
Exit button
This button can be used to jump back to the previous display
within a menu display or a function / input can be interrupted.
This button can also be used to call up the special level 
(see section 3.5).
Action Result
Brief pressing. – Jump back to the previous display or pre-
vious level or
– Cancellation of a special function or an
active temporary timer programme.
Pressfor more
than 5 secs.
– Special level is called up.
Tab. 3-4 Functions of the exit button
3.3 Operating concept
The operating concept for controlling the RoCon HP is structured
in such a way that the frequently required settings options are ac-
cessible quickly and directly at the main function level(selection
using the rotary switch), while the less frequently required set-
tings options are arranged at a lower parameter level.
1 Info (section 3.4.1)
2 Operating Mode (section 3.4.2)
3 Set Temp Day (section 3.4.3)
4 Set Temp Night (section 3.4.4)
5 DHW Set Temp (section 3.4.5)
6 DHW Install (section 3.4.6)
7 Time Program (section 3.4.7)
8 Configuration (section 3.4.8)
9 Remote Param (section 3.4.9)
Fig. 3-3 Illustration of main function level (rotary switch position)
Certain functions and parameters are restricted by access au-
thorisation and can only be adjusted by the heating technician
(see section 3.6.1).
In normal operating mode the rotary switch should be in
position .
After switching on and successful initialisation, the display auto-
matically shows the standard display with rotary switch
position .
In the first commissioning, the setting for language selection is
displayed first.
●Select the language using the rotary switch.
●Confirm the changes with a brief push of the rotary switch.
Adaption to the special installation configuration is
carried out in the "Configuration" rotary switch
position (see section 3.4.8).
When the system is switched on, based on the stipulations set in
the Controller RoCon HP, it fully automatically regulates the
operation of the
– room heating, room cooling and the
– sanitary hot water generation.
Independent of the setting of the rotary switch, the
Daikin Altherma EHS(X/H) operates in accordance with
the operating mode set in the "Operating Mode"
switch position or that has been activated by a
special programme.
If the user enters a value manually, this setting remains active
until the user changes it or until the programme clock forces an-
other operating mode.

3 xOperation
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
Operating instructions
11
The operating mode can be affected by additional functions such
as:
–Weather-controlled flow temperature regulation
–Switching time program
– Setting the temperature target value
– Setting at the room station
– Setting on room thermostat
– Switch status at EXT input (external operating mode switcho-
ver)
– Switch status at EBA input (external demand request)
– Quite Mode
– Interlink fct
– Switch status at SMART GRID input (EVU function SMART
GRID)
– Switch ststus at EVU input (EVU function HT/NT (low tariff) or
SMART GRID)
– Defrosting function
– Frost protection function
– Screed function
–AirPurge
– Manual Operation
Button block
The operating panel on the RoCon HP can be blocked to prevent
inadvertent actuation (see fig. 3-4).
Unlocking can be carried out in the same way.
The prerequisite for this function is that, in the level "Setup", the
parameter [Keylock Function] is set to "On" (see chapter 6.2.1
tab. 6-1).
Keylock Function
On
Keylock Function
Keylock Function
Off
Fig. 3-4 Activating button lock (1.) and deactivating (4.)
3.4 Basic functions and operating modes
If the storage temperature falls below a certain
minimum value, the safety settings of the Daikin
Altherma EHS(X/H) prevent the operation of the heat
pump in the case of low external temperatures:
–External temperature < -2°C, minimum storage
temperature = 30°C
–External temperature < 12°C, minimum storage
temperature = 23°C.
Without backup heater:
The storage tank water must be heated to the minimum
required storage temperature by an external heater.
With backup heater (EKBUxx):
With an outdoor temperature < 12°C and a storage
tank temperature < 35°C, the backup heater (BUH) is
switched on automatically on in order to heat up the
storage tank water to at least 35°C.
●In order to accelerate the heating process with
the back-up heater, temporarily
– Parameter [Function Heating ] = "1" and
– Set parameter [Power DHW] to the maximum
value of the back-up heater.
– Set rotary switch to the operating mode and
parameter [1x Hot Water] to "On".
Automatic defrosting function
At low outdoor temperatures and corresponding humidity values,
the external heat pump unit may ice up. This icing impairs effi-
cient operation. The system detects this condition automatically
and starts the defrosting function.
During the defrosting function, heat is drawn from the hot water
storage tank and the backup heater is turned on if required. 
Depending on the heat demand for the defrosting function,
heating of the direct heating circuit may be interrupted tempo-
rarily.
After 8 minutes at most, the system returns to normal mode.
3.4.1 System information (Info)
In this rotary switch position, the rotary switch can be used to call
up all the system temperatures, the type of Daikin
Altherma EHS(X/H), various software information and the oper-
ating statuses of all system components, one after the other. 
The number of displayed parameters depends on the connected
components.
No settings can be made to these values.
●Place the rotary switch in the "Info" position.
Standard display is shown (see fig. 3-2).
●Press the rotary switch briefly.
The parameter overview is displayed.
●Select the desired information level with the rotary switch.
●Confirm the changes with a brief push of the rotary switch.
The value is displayed (for example, see fig. 3-6).
●Select the individual information with the rotary switch.
More detailed explanations and possible setting values for this rotary switch setting
can be seen in tab. 3-5 and in chapter 6.10.

Operating instructions
12
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
3 xOperation
Display operating data overview
The current operating data for the Daikin Altherma EHS(X/H) are
shown on the RoCon HP Controller in the "Overview" information
level.
The display of the operating data is not divided into several
windows. By adjusting the rotary switch it is toggled between the
windows.
Short
designation Explanation of the displayed value
Page 1
Mode Current mode of the heat pump:
- - - : No heating or cooling demand
: Heating
: Cooling
: Domestic hot water generation
: Automatic defrosting function active
Ext Current energy mode of the heat pump:
LT: EVU function HT/NT active and low tariff.
HT: EVU function HT/NT active and high tariff.
SGN: EVU function SMART GRID active, normal
mode.
SG1: EVU function SMART GRID active, discon-
nection: no heat pump operation, no frost
protection function.
SG2: EVU function SMART GRID active, switch-
on recommendation, mode with higher set
temperatures, cheap power.
SG3: EVU function SMART GRID active, switch-
on command and storage tank charging to 70°C,
cheap power
- - -: No external mode active, heat pump works
in normal mode.
RT Parameter [Room thermostat] / [Interlink fct] 
= Off: - - -
Parameter [Room thermostat] = On:
–: Heating or cooling demand
–: No heating demand
Parameter [Interlink fct] = On (priority):
– - - -: only frost protection
– IL1: normal inflow target temperature
– IL2:
– increased inflow target temperature in
heating operation
– decreased inflow target temperature in
cooling operation
Pump Actual output of the internal heating circulation
pump in %
EHS Current output of the backup heater in kW
BPV Current position of the mixing valve 3UVB1
(100% = A, 0% = B)
Page 2
TV Current inflow temperature after the plate heat
exchanger (tV1)
TVBH Current heating inflow temperature or temp. after
heating support heat exchanger (tV, BH)
TR Current heating return flow temperature (tR1)
Tdhw Current temperature in domestic hot water
storage tank (tDHW1)
TA Actual outdoor temperature (measured by op-
tional temperature sensor RoCon OT1)
VActual volume flow (flow rate) in the heating
system
Page 3
TVBH2 = TVBH
TR2 Current heating return flow temperature, sec-
ondary sensor (tR2)
Tdhw2 Current temperature in domestic hot water
storage tank, secondary sensor (tDHW2)
Tliq2 Current coolant temperature (tL2)
TA2 Actual outdoor temperature (measured by tem-
perature sensor of the external heat pump)
quiet Shows the status of the whisper mode
Tab. 3-5 Description of the operating data displayed as an overview
Info
Overview
Water Pressure
Off
Fig. 3-5 Display operating data overview
Short
designation Explanation of the displayed value

3 xOperation
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
Operating instructions
13
Displaying the water pressure
On the Controller RoCon HP, when it is switched on, you can
display the system pressure (water pressure) in the internal
circuit (direct heating circuit). The water pressure is available as
the first info parameter after the operating data overview 
(see fig. 3-6).
The permissible range of water pressure during operation de-
pends on the Daikin Altherma EHS(X/H) and the heating system.
The set values and threshold values must only be changed by the
heating technician. If the water pressure falls below the minimum
value (set parameter value), it must be increased by topping up
the system (see installation instructions of the Daikin
Altherma EHS(X/H), chapter "Inspection and Maintenance").
The pressure limits for the safety switch-off and the set
pressure can be adjusted in the parameter settings in
level "System ".
Info
Overview
Water Pressure
T-HS
Water Pressure
Fig. 3-6 Info values display (e.g. system pressure)
3.4.2 Setting the operating mode
The selection of the operating mode with which the Daikin
Altherma EHS(X/H) is to operate is undertaken on the rotary
switch in the setting "Operating Mode" .
The selected operating mode is activated by briefly pushing the
rotary switch.
Operating Mode
Standby
Reducing
Operating Mode
Heating
Cooling
Summer
Operating Mode
Summer
Automatic 1
Automatic 2
Operating Mode
Summer
Automatic 1
Automatic 2
Fig. 3-7 Switching the operating mode 
(e.g.: from "Standby" to "Automatic 1")
●Place the rotary switch in the "Operating Mode"
position.
An overview is displayed.
●Select the desired operating mode with the rotary switch.
●Confirm the changes with a brief push of the rotary switch.
Daikin Altherma EHS(X/H) operates in accordance with
the set operating mode.
The current operating mode is indicated by an appropriate
symbol in the standard display.
Operating mode Standby (Stand-by)
CAUTION!
A heating system that is not frost-pro-
tected can freeze in cold weather and be
damaged.
●Drain the water out of the heating
system if there is a danger of frost.
●If the heating system is not drained
and there is a risk of frost, the power
supplies must be secured and the
external main switch must remain
switched on.
In this mode, the Daikin Altherma EHS(X/H) is shifted to the
stand-by mode. The frost-protection function 
(see section 3.6.5) remains in place. In order to maintain this
function, the system must not be disconnected from the mains!

Operating instructions
14
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
3 xOperation
All controllers integrated into the RoCon-system via the CAN bus
are also switched at a higher level to the operating mode
"Standby".
Fig. 3-8 Standard display in "Standby" operating mode 
(above the frost-protection limit)
In the "Standby" operating mode, the heat pump and
any optionally connected backup heaters are isolated
from the power supply (Energy saving mode) when
the following conditions are met:
– The outdoor temperature sensor (RoCon OT1) is
connected and correctly parametrised in the system
configuration (parameter [Outside Config] = On),
– The outdoor temperature is over 8°C,
– There is no heating command,
– The frost protection function is not active in any of
the connected heating circuits, and
– Daikin Altherma EHS(X/H) has been switched on
for at least 5 mins.
Operating mode Reducing
Reduced heating mode (lower set room temperature) in ac-
cordance with the target flow temperature set for economy mode
in the parameter [T-Reduced] (see section 3.4.4).
Hot water generation according to the set target domestic hot
water temperatures and switching cycles in the hot water time
programme [DHW Program 1] (see section 3.4.5).
Operating modes Heating, Cooling
Heating or cooling operation in accordance with the room tem-
perature set in the parameter [T-Room 1 Setpoint] 
(see section 3.4.3).
A connected outdoor temperature sensor (weather-controlled
flow temperature regulation) or a connected room station will also
influence the set flow temperature regulation (requirements: 
Parameter [HC Function] = On).
Hot water generation according to the set target domestic hot
water temperatures and switching cycles in the hot water time
programme [DHW Program 1] (see section 3.4.5).
Operating mode Summer
Hot water generation according to the set target domestic hot
water temperatures and switching cycles in the hot water time
programme [DHW Program 1] (see section 3.4.5).
All controllers integrated into the RoCon-system via the CAN bus
are also switched at a higher level to the operating mode
"Summer".
Operating mode Automatic 1 (Timer programme)
Automatic heating and economy mode in accordance with the
permanent timer programmes (see section 3.4.7):
– [HC Program 1]
– [DHW Program 1]
Operating mode Automatic 2 (Timer programme)
Automatic heating and economy mode in accordance with the
permanent timer programmes (see section 3.4.7):
– [HC Program 2]
– [DHW Program 2]
If, in the active operating mode, the hot water gener-
ation is in setback, you can use the rotary switch to
set temporary "DHW Reheating" without having to
change any other standard settings (see section 3.4.6).
Switching contact for external operating mode
switching
Via a potential-free switching contact connected to con-
nection J8 of the Daikin Altherma EHS(X/H) at ter-
minals "EXT" and switched with a resistance we can
also carry out a changeover of the operating mode from
an external device (e.g. a modem, …) (see tab. 3-6).
Operating mode Resistance Tolerance
Standby < 680 Ω
± 5 %
Heating 1200 Ω
Reducing 1800 Ω
Summer 2700 Ω
Automatic 1 4700 Ω
Automatic 2 8200 Ω
Tab. 3-6 Resistance values for the evaluation of the EXT signal
The resistances specified in tab. 3-6 work at a toler-
ance range of 5 %. Resistances outside of this toler-
ance ranges are interpreted as open input. The heat
generator resets to the previously active operation
mode.
At resistance values higher than the value for 
"Automatic 2", the input is not considered.
If several switching contacts are to be connected to the
Daikin Altherma EHS(X/H) (e.g. SMART GRID, Room
thermostat), the associated functions can have a higher
priority than the external operating mode switching. 
The operating mode requested by the EXT switching
contact might then not be activated or may be activated
later.
In addition to these operating modes there are various different
temporary heating programmes available (see tab. 3-7), which
run according to priority after they have been activated.

Temporary
timer
programme
Setting /
activating in
level
Rotary
switch
setting
Note
DHW Install DHW Install section
3.4.6
Party
Time Program

section
3.4.7
Away
Holiday
Vacation
Screed*
Configuration >
HC Configura-
tion
section
3.6.13
3 xOperation
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
Operating instructions
15
* only with expert code.
Tab. 3-7 Overview of temporary timer programmes
If a temporary timer programme (DHW Install, Party,
Away, Holiday, Vacation, Screed) is started during the
selected operating mode, the regulation will take place
with preference according to the settings of this timer
programme.
3.4.3 TemperaturesettingDaytimeroomtemperature
The set room temperatures for room heating during the day are
determined in the rotary switch setting .
●Place the rotary switch in the "Set Temp Day" position.
An overview is displayed.
The end figures of the parameter designations (1 - 3)
within this rotary switch setting designate the associ-
ation with each individual cycle of the timer programme.
●Select the temperature block to be set with the rotary switch.
●Confirm the changes with a brief push of the rotary switch.
Settings are displayed.
●Set the temperature.
●Confirm the changes with a brief push of the rotary switch.
Change has been accepted. Jump back to previous dis-
play.
More detailed explanations and possible setting values for this rotary switch setting
can be seen in chapter 6.5.
3.4.4 Temperature setting Economy mode
The set room temperatures for room heating in economy mode
are determined in the rotary switch setting .
●Place the rotary switch in the "Set Temp Night" position.
An overview is displayed.
●Select the parameter to be set with the rotary switch.
●Confirm the changes with a brief push of the rotary switch.
– [T-Reduced]: Set value for "Reducing" operating mode or
setback by a permanent timer programme.
– [T-Absence]: Set value for temporary heating / cooling
programmes ("Away" and "Vacation").
Settings are displayed.
●Set the temperature.
●Confirm the changes with a brief push of the rotary switch.
Change has been accepted. Jump back to previous dis-
play.
More detailed explanations and possible setting values for this rotary switch setting
can be seen in chapter 6.6.
3.4.5 Temperature setting hot water generation
The hot water set temperatures for hot water generation for each
individual timer programme are determined in the rotary switch
setting .
●Place the rotary switch in the "DHW Set Temp" position.
The end figures of the parameter designations (1 - 3)
within this rotary switch setting designate the associ-
ation with each individual cycle of the timer programme.
●Select the temperature block to be set with the rotary switch.
●Confirm the changes with a brief push of the rotary switch.
Settings are displayed.
●Set the temperature.
●Confirm the changes with a brief push of the rotary switch.
Change has been accepted. Jump back to previous dis-
play.
More detailed explanations and possible setting values for this rotary switch setting
can be seen in chapter 6.7.
3.4.6 Unscheduled hot water generation
You can charge the hot water up manually outside a hot water
timer programme to the preset temperature set in parameter 
[T-DHW Setpoint 1] in the rotary switch position . Heating up
is carried out as a priority and independently of any other heating
programmes.
●Place the rotary switch in the "DHW Install" position.
An overview is displayed.
●Select the parameter to be set with the rotary switch.
– [1x Hot Water]: Activating one-off hot water generation.
●Confirm the changes with a brief push of the rotary switch.
●Setting parameters
●Confirm the changes with a brief push of the rotary switch.
Begin unscheduled hot water generation.
After this temporary function has expired, the Controller
automatically jumps back to the previously active oper-
ating mode. The rotary switch should therefore be re-
turned to the position "Info" after activation.
The function is subject to time limits.
It is interrupted at the latest after the maximum charging
time set in the parameter [Max DHW loading ] and
cannot be restarted once more until the blocking time
set in the parameter [DHW Off Time] has expired 
(see chapter 6.2.4).
More detailed explanations and possible setting values for this rotary switch setting
can be seen in chapter 6.3.

Operating instructions
16
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
3 xOperation
3.4.7 Switching time program
Various different timer programmes are available, that are set in
the factory, but which can be adjusted to suit, to provide conven-
ient and individual room and hot water temperature control.
The timer programmes regulate the associated heating circuit,
the storage tank charging circuit and an option connected circu-
lation pump in accordance with the stipulated switching times.
Adjustment
In the rotary switch position we set the time intervals for
the heating circuit, the integrated hot water generation and the
optional circulation pump.
●Place the rotary switch in the "Time Program"
position.
An overview is displayed.
●Select the timer programme to be set with the rotary switch.
●Confirm the changes with a brief push of the rotary switch.
Settings are displayed.
●Select and change the value to be set with the rotary switch.
●Confirm the changes with a brief push of the rotary switch.
More detailed explanations and possible setting values for this rotary switch setting
can be seen in chapter 6.8.
Permanent timer programmes
For the connected heating circuits and the storage tank charging
circuit, timer programmes regulate the heating circuit tempera-
tures or the operating times for the circulation pump in ac-
cordance with the stipulated switching cycles. The switching
cycles are saved in time blocks for which various set tempera-
tures apply.
In the switching cycles the heating system is regulated differen-
tiated into day and economy mode.
The target room temperatures for these timer programmes are
set in the rotary switch settings "Set Temp Day" , "Set Temp
Night" and "DHW Set Temp 1" .
The following switching time programmes are available:
–2 timer programmes for the heating circuit, each with
3 possible time cycles
– [HC Program 1]
– [HC Program 2]
A separate input for each individual day of the week is
possible, or in blocks of "Monday to Friday", "Saturday
to Sunday" and "Monday to Sunday".
Programme Time period switching cycle
HC Program 1 Single day of the week (Monday, Tuesday ...)
1st
.
2.
3.
06:00 -> 22:00
--:-- -> --:--
--:-- -> --:--
Working week
(Monday to Friday)
1st
.
2.
3.
06:00 -> 22:00
--:-- -> --:--
--:-- -> --:--
Weekend
(Saturday to Sunday)
1st
.
2.
3.
07:00 -> 23:00
--:-- -> --:--
--:-- -> --:--
Entire week
(Monday to Sunday)
1st
.
2.
3.
06:00 -> 22:00
--:-- -> --:--
--:-- -> --:--
HC Program 2 See HC Program 1
1st
.
2.
3.
See
HC Program 1
Tab. 3-8 Menu structure heating circuit timer programme
Time settings for one switching cycle in one weekday or
block programme are also adopted for other time pe-
riods, provided that they affect the same weekdays. 
Examples referring to tab. 3-8:
a) For the single working day "Monday" the start time
for the 1st switching cycle changed from 06:00 to
05:00.
In the time period "Working week" and "Entire
week", the 1st. time block switching cycle also
changed from 06:00 to 05:00.
b) For the time period "Weekend", the start time for the
1st switching cycle changed from 07:00 to 08:00.
In the individual weekdays "Saturday" and "Sun-
day", the 1st switching cycle also automatically
changed from 07:00 to 08:00.
c) For the time period "Entire week", the end time in
the 1st. time block switching cycle changed from
22:00 to 21:30.
In all the weekdays the 1st switching cycle is
also changed from 22:00 to 21:30.
–2 timer programmes for the hot water circuit, each with
3 possible switching cycles
– [DHW Program 1]
– [DHW Program 2]
The setting and input structure of the timer programmes
are identical to the ones for the heating circuit timer pro-
gramme (see also tab. 3-8).
–1 timer programme for one optionally connected circula-
tion pump with 3 individual possible switching cycles
– [Circulation Time]
The setting and input structure of the timer programmes
are identical to those for the heating circuit timer pro-
gramme (see also tab. 3-8).
For further instructions concerning settings for an op-
tional circulation pump, see section 3.6.15.
Saved switching time programmes can be changed at any time.
To provide a better overview, we recommend making a record of
the programmed switching times and keeping it in a safe place
(see chapter 9.1.1).
The permanent timer programmes are preset as per tab. 3-9.

Switching cycle 1 Switching cycle 2 Switching cycle 3
Time period On Off On Off On Off
Room heating / room cooling
Temperature setting [T-Room 1 Setpoint]: 20°C [T-Room 2 Setpoint]: 20°C [T-Room 3 Setpoint]: 20°C
[T-Reduced]: 10°C
"HC Program 1"
Monday - Friday 06:00 22:00 - - : - - - - : - - - - : - - - - : - -
Saturday, Sunday 07:00 23:00 - - : - - - - : - - - - : - - - - : - -
"HC Program 2"
Monday - Friday 06:00 08:00 - - : - - - - : - - - - : - - - - : - -
Saturday, Sunday 07:00 23:00 - - : - - - - : - - - - : - - - - : - -
domestic hot water generation
Temperature setting [T-DHW Setpoint 1]: 48°C [T-DHW Setpoint 2]: 48°C [T-DHW Setpoint 3]: 48°C
"DHW Program 1"
Monday - Sunday 00:00 24:00 - - : - - - - : - - - - : - - - - : - -
"DHW Program 2"
Monday - Friday 05:00 21:00 - - : - - - - : - - - - : - - - - : - -
Saturday, Sunday 06:00 22:00 - - : - - - - : - - - - : - - - - : - -
"Circulation Time"
Monday - Friday 05:00 21:00 - - : - - - - : - - - - : - - - - : - -
Saturday, Sunday 06:00 22:00 - - : - - - - : - - - - : - - - - : - -
3 xOperation
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
Operating instructions
17
Tab. 3-9 Factory setting for the permanent switching time programmes
Temporary timer programmes
For a specific situation there are 4 temporary programmes
available, whichdeactivatethepermanent timer programmes
or the current operating mode for the duration of their validity.
The symbol of the temporary time program is displayed in the
header line of the standard display, as long as the time program
is active.
The following temporary time programmes may be
interrupted at any time by manually changing the oper-
ating mode.
1. [Party]: Immediate one-off extension of the room
heating
a) If an automatic programme is activated, the last
applicable switching cycle is always extended. In the time
before switching cycle 1, the target room temperature set
in the parameter [T-Room 1 Setpoint] applies.
b) In all other operating modes, the target room temperature
set in the parameter [T-Room 1 Setpoint] applies.
– The hot water generation is not affected.
– The time programme runs for the set time period after acti-
vation.
2. [Away]: Immediate one-off setback up to 6 hours
– The system operates in economy mode according to the
room temperature set in the rotary switch setting "Set
Temp Night" in the parameter [T-Absence].
– The hot water generation is not affected.
– The time programme runs for the set time period after acti-
vation.
3. [Holiday]: One-off calendar-controlled presence.
– The system operates exclusively in accordance with the
"Sunday" settings in the [HC Program 1].
– The hot water generation operates exclusively in accord-
ance with the "Sunday" settings in the [DHW Program 1].
4. [Vacation]: One-off calendar-controlled reduction.
– The system only operates in economy mode according to
the room temperature set in the rotary switch setting "Set
Temp Night" in the parameter [T-Absence].
– Hot water generation according to the set temperatures
and switching cycles in the hot water time programme
[DHW Program 1] (see section 3.4.5).
– The calendar-controlled programme [Vacation] is not
started if the operating mode [Standby] or [Manual Oper-
ation] is active on the set start date.

Operating instructions
18
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
3 xOperation
3.4.8 System settings
We undertake the basic settings for the Controller RoCon HP and
the system configurations for the installation environment of the
Daikin Altherma EHS(X/H), the direct heating circuit, the hot
water generation and any optionally connected components in
the rotary switch setting "Configuration" .
Depending on access authority (user or expert), various different
parameters are available. Certain parameters are only acces-
sible to the heating expert.
LCD Display, Language, Date, Time setting
An internal pre-programmed calendar ensures auto-
matic time reset at the annually recurring
summer/winter time changes.
●Place the rotary switch in the "Configuration" position.
An overview is displayed.
●Select the "Setup" level with the rotary switch.
An overview is displayed.
●Select the parameter [LCD Brightness] and [LCD Illum Time]
using the rotary switch and change if required.
●Use the rotary switch to select and confirm the [Language],
[Date] or [Time] parameters.
●Select and change the value to be changed within the
individual display using the rotary switch.
●Confirm the changes with a brief push of the rotary switch.
Change has been accepted. Jump back to previous dis-
play.
More detailed explanations and possible setting values for this rotary switch setting
can be seen in section 3.6 and in chapter 6.2.
3.4.9 Terminal function
In the rotary switch setting "Remote Param" we can also
operate and parametrise other devices integrated via the CAN
bus in the RoCon system (regulating components mixer module
or heat exchanger), provided that the individual component has
the necessary authority (see also chapter 4.3).
After activation of the "Bus -
Scan" a list of the equipment
that was recognised is shown
for selection in the display (ex-
ternal equipment and local
equipment).
After selection and confirming
an external device, the terminal
function for this device is acti-
vated and the associated
standard display for this device
is shown in the display.
The operating component is
then in terminal mode.
Remote Param
Bus - Scan
No selection
Fig. 3-9 Display of the level "Re-
mote Param" at commis-
sioning or temporary
disconnection from the
mains
The local control element acts as the remote control for the ex-
ternal equipment. In this case all the control functions are pro-
vided and saved 1:1 as on the external equipment.
The various different application and parametrisation possibilities
for using the devices and operating components combined in the
RoCon system are described in chapter 4.3.
Remote Param
Bus - Scan
No selection
Remote Param
Bus - Scan
No selection
Remote Param
No selection
Contr BM1/BE1 #X
Mix Valve #X
Remote Param
Contr BM1/BE1 #X
Mix Valve #X
Remote Param
Contr BM1/BE1 #X
Mix Valve #X
B1 Operating component RoCon B1 B1 of the 
Altherma EHS(X/H)
Bus CAN-Bus (connection line between RoCon devices

and operating components)
H1Direct heating circuit (e.g. radiators)
H2Mixed heating circuit (e.g. underfloor heating)
M1 Mixer module EHS157068
U1 Room station EHS157034
WE1 Heat generator Altherma EHS(X/H)
Fig. 3-10 Example for "Bus - Scan" on a heating system with 1 heat gen-
erator, 1 mixer, 1 room station and activation of the terminal
function for remote control of the mixer module
During this activated terminal function, the header of the display
carries additional information on the remotely controlled
equipment; the symbol #X is displayed, where "X" indicates
the bus ID setting for the remotely controlled equipment.

3 xOperation
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
Operating instructions
19
The displayed values and symbols are always taken over from
the selected equipment (such as the mixer circuit infeed temper-
ature of the mixer module EHS157068 with device ID 1).
Fig. 3-11 Display example for a remotely controlled mixer module
For operation of the local equipment, this must be activated again
in the selection list (parameter [No selection]).
If the message "n. A." is displayed at rotary switch set-
ting , the control unit has yet to be assigned a valid
terminal address.
If the message "n. A." is still displayed it may be nec-
essary to update the device software before the ter-
minal function can be used. Contact the Daikin Service
Team in such cases.
Activating / deactivating normal operation
Requirement: A valid terminal ID is assigned to the RoCon B1
control element of the Daikin Altherma EHS(X/H) or the
EHS157034 room station.
For setting the terminal address of optional connected
equipment, see chapter 4.4 or the instruction handbook
supplied for the respective equipment.
●Place the rotary switch in the "Remote Param"
position.
The level "Remote Param" is displayed.
●Select the parameter [Bus - Scan] with the rotary switch.
●Confirm the changes with a brief push of the rotary switch.
The context menu is displayed.
●Use the rotary switch to select the parameter [Bus - Scan] and
confirm with "Yes".
Bus - Scan is performed.
An overview of all the equipment found is displayed
(example see fig. 3-10).
●Use the rotary switch to select the equipment for which the
terminal function is to be performed.
●Confirm the changes with a brief push of the rotary switch.
The local control element acts as the remote control for
the external equipment.
To endterminal mode and restore operation of the assigned
equipment to the control element, at the level "Remote Param"
the parameter [No selection] must be selected and acknowl-
edged.
After interim isolation from the power supply, at the
level "Remote Param", we always show the display as
shown in fig. 3-9.
In order to be able to use the terminal function for con-
nected equipment, a new Bus - Scan must be carried
out.
Communication between the RoCon system compo-
nents continues to function, even without a Bus - Scan,
and previously made settings remain active.
Activation of the terminal function is carried out as
shown in fig. 3-10, but, after confirmation of the display
"Bus - Scan", you must select the parameter [New
scan?] with the rotary button, and confirmed with "Yes".
3.4.10 Quite Mode
Quite Mode means that the exterior heat pump unit is operating
at reduced output. This reduces the operating noise caused by
the exterior heat pump unit.
CAUTION!
Active Quite Mode reduces the perfor-
mance in room heating and room cooling
operation with the result that it may no
longer be possible to reach the preset
target temperatures.
●With outside temperatures below
freezing, there is a risk of material
damage caused by frost.
Quite Mode activation / deactivation
●Place the rotary switch in the "Configuration" position.
An overview is displayed.
●Select the "System " level with the rotary switch.
An overview is displayed.
●Select the parameter [Quite Mode] with the rotary switch.
●Confirm the changes with a brief push of the rotary switch.
The setting for the parameter is displayed.
●Setting parameters
– Parameter [Quite Mode] = 0: deactivated
– Parameter [Quite Mode] = 1: permanently activated
– Parameter [Quite Mode] = 2: only activated at night
●Confirm the changes with a brief push of the rotary switch.
Change has been accepted. Jump back to previous dis-
play.
More detailed explanations and possible setting values for this function can be seen
in chapter 6.2.2.

Operating instructions
20
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
3 xOperation
3.4.11 SMART GRID (SG)
WARNING!
There is a danger of scalding at target
hot water temperatures over 60°C. 
This is possible as the electric utilities
company (EVU) is entitled to control the
electricity consumption optimally in
accordance with supply and demand in
the SMART GRID regulations.
Due to the forced charging, the target hot
water temperature in the hot water
storage tank can reach over 60°C.
This storage tank charging even takes
place when the "Standby" operating
mode it set.
●Install scald protection in the hot
water distribution line (e.g. VTA32,
15 60 15 + Screw connection
set 1", 15 60 16).
You will need a special electric meter with an SG receiver for this
function, and the Daikin Altherma EHS(X/H) must be connected
to it.
As soon as the function is activated by the parameter [SMART
GRID] = 1, the heat pump is moved to an operating mode in ac-
cordance with tab. 3-10, depending on the signal from the energy
supply company.
Signal 2) Cost of
electricity Effect on
EVU SG Hot water Heating
1 0 - - - No operating
mode 1)
No operating
mode 1)
0 0 normal Normal operating
mode
Normal operating
mode
0 1 low The switch-on rec-
ommendation and
set value storage
tank temperature is
increased, depend-
ing on the parameter
[Mode SG]
The switch-on rec-
ommendation and in-
flow target
temperature are in-
creased depending
on the parameter
[Mode SG]
1 1 very
low
Switch-on command
and set value of stor-
age tank tempera-
ture is set to 70°C
Switch-on command
for storage tank
charging
1) No frost-protection function (see section 3.6.5).
2) Switch contacts at input J8 of the circuit board RoCon BM1 closed (1) or
opened (0).
Tab. 3-10 Utilisation of the SG signal
More detailed explanations and possible setting values for this function can be seen
in chapter 6.2.1.
3.5 Special functions
In the "Special Level" we can carry out various different func-
tions that are usually used by the heating expert.
The following special functions are possible:
– Manual mode (see section 3.5.1).
– Message display (see section 7)
– Resetting to factory settings (see section 3.6.12)
More detailed explanations of these functions can be found in chapter 6.11.
The call-up of special functions does not depend on the
setting on the rotary switch.
●Depress the exit button for at least 5 secs.
Menu "Special Level" is displayed.
●Select the programme to be started with the rotary switch.
●Confirm the changes with a brief push of the rotary switch.
The selected programme starts.
●Cancellation and jump back by:
– Pressing the exit button again, or
– Briefly pressing the rotary switch or
– selecting a different menu using the rotary switch.
3.5.1 Manual Operation
Manual Operation is used to regulate the Daikin
Altherma EHS(X/H) manually to a specific flow temperature. 
The manual mode should only be used for diagnostic purposes.
With hydraulically controlled priority operation for the hot water
generation you must make sure that the inflow target temperature
set in manual mode is adequate to achieve the stored hot water
set temperature (parameter [T-DHW Setpoint 1]).
●Depress the exit button for at least 5 secs.
Menu "Special Level" is displayed.
●Select the programme "Manual Operation" with the rotary
switch.
●Confirm the changes with a brief push of the rotary switch.
"Manual Operation" active.
●Set the inflow target temperature with the rotary switch.
Do not confirm the setting with the rotary switch,
as this will close the programme.
During active manual mode the hot water is consistently
regulated to the parameter value for the first target hot
water temperature ([T-DHW Setpoint 1]).
The button block (if it was activated from the start of this
function), is activated again within 2 seconds in order to
prevent inadvertent termination of the function by operat-
ing the Controller RoCon HP.
●Cancellation and jump back by:
– Pressing the exit button again, or
– Briefly pressing the rotary switch or
– selecting a different menu using the rotary switch.
If the manual mode is closed, the Controller RoCon HP
automatically switches to the operating mode "Standby".