Daikin RoCon HP User manual

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

List of contents
Operating instructions
2
Daikin RoCon HP
Daikin Control
008.1420844 – 05/2014
1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Observing instructions . . . . . . . . . . . . . . . . . . . . 3
1.2 Warning signs and explanation of symbols . . . . 3
1.3 Avoid danger . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Product description. . . . . . . . . . . . . . . . . . . 5
3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.2.2 Operating elements. . . . . . . . . . . . . . . . . . . . . . . . .7
3.3 Operating concept . . . . . . . . . . . . . . . . . . . . . . . 8
3.4 Basic functions and operating modes . . . . . . . . 9
3.4.1 System information (Info) . . . . . . . . . . . . . . . . . . . .9
3.4.2 Setting the operating mode . . . . . . . . . . . . . . . . . .11
3.4.3 Temperature setting Daytime room temperature .12
3.4.4 Temperature setting Economy mode . . . . . . . . . .12
3.4.5 Temperature setting hot water generation . . . . . .13
3.4.6 Unplanned hot water generation . . . . . . . . . . . . . .13
3.4.7 Switching time program. . . . . . . . . . . . . . . . . . . . .13
3.4.8 System settings. . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.4.9 Terminal function. . . . . . . . . . . . . . . . . . . . . . . . . .15
3.4.10 Quite Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.4.11 SMART GRID . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.5 Special functions . . . . . . . . . . . . . . . . . . . . . . . 17
3.5.1 Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . .17
3.6 Special system settings . . . . . . . . . . . . . . . . . . 18
3.6.1 Access Rights (Technician password) . . . . . . . . .18
3.6.2 Heat curve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
3.6.3 Cooling characteristic curve . . . . . . . . . . . . . . . . .19
3.6.4 Weather-controlled flow temperature regulation . .20
3.6.5 Frost protection function . . . . . . . . . . . . . . . . . . . .20
3.6.6 Interlink function . . . . . . . . . . . . . . . . . . . . . . . . . .21
3.6.7 Additional heat generator . . . . . . . . . . . . . . . . . . .21
3.6.8 Heating support. . . . . . . . . . . . . . . . . . . . . . . . . . .22
3.6.9 Special function: Switching contacts . . . . . . . . . . .22
3.6.10 Air Purge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
3.6.11 Legionella protection. . . . . . . . . . . . . . . . . . . . . . .23
3.6.12 Reset to factory settings (Reset). . . . . . . . . . . . . .24
3.6.13 Screed Program . . . . . . . . . . . . . . . . . . . . . . . . . .25
3.6.14 Relay Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
3.6.15 Settings for optional circulation pump . . . . . . . . . .27
3.6.16 Remote control via Internet . . . . . . . . . . . . . . . . . .27
4 Initial start-up. . . . . . . . . . . . . . . . . . . . . . . 28
4.1 Starting up the Daikin Altherma EHS(X/H). . . . 28
4.2 Connect the optional RoCon devices and 
start them up . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.2.1 Starting up the EHS157068 mixer module . . . . . .28
4.2.2 Starting up the EHS157034 room station . . . . . . .29
4.2.3 Caretaker function. . . . . . . . . . . . . . . . . . . . . . . . .30
5 Parameter settings . . . . . . . . . . . . . . . . . . .31
5.1 Explanation of the parameter tables . . . . . . . . 31
5.2 Rotary switch setting: Configuration . . . . . . . . 31
5.2.1 Level "Setup". . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.2.2 Level "System Configuration" . . . . . . . . . . . . . . . 34
5.2.3 Level "HC Configuration". . . . . . . . . . . . . . . . . . . 35
5.2.4 Level "DHW Configuration" . . . . . . . . . . . . . . . . . 37
5.3 Rotary switch setting: DHW Install . . . . . . . . . 37
5.4 Rotary switch setting: Operating Mode . . . . . 37
5.5 Rotary switch setting: Set Temp Day . . . . . . . 38
5.6 Rotary switch setting: Set Temp Night . . . . . . 38
5.7 Rotary switch setting: DHW Set Temp . . . . . . 38
5.8 Rotary switch setting: Time Program . . . . . . . 39
5.9 Rotary switch setting: Remote Param . . . . . . 39
5.10 Rotary switch setting: Info . . . . . . . . . . . . . . . 40
5.11 Exit button: Sonderfunktion . . . . . . . . . . . . . . . 41
5.12 Parameter level "Basic Configuration" . . . . . . 41
5.13 Parameter levels for the EHS157068 mixer 
module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.13.1 Rotary switch setting: Configuration,
level "Setup" . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.13.2 Rotary switch setting: Configuration, 
level "Mixer Config" . . . . . . . . . . . . . . . . . . . . . . . 43
6 Errors, malfunctions and messages . . . . .45
6.1 Recognising errors, correcting malfunctions . . 45
6.1.1 Current fault display . . . . . . . . . . . . . . . . . . . . . . 45
6.1.2 Read Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.1.3 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.2 Emergency operation . . . . . . . . . . . . . . . . . . . 46
6.3 Malfunctions and fault codes. . . . . . . . . . . . . . 46
7 Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . .47
8 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
8.1 User-specific settings . . . . . . . . . . . . . . . . . . . 48
8.1.1 Switching time program. . . . . . . . . . . . . . . . . . . . 48
8.2 Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
8.2.1 Data bus addresses . . . . . . . . . . . . . . . . . . . . . . 49
8.3 Other items . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
9 List of keywords . . . . . . . . . . . . . . . . . . . . .51

1 xSafety
Daikin RoCon HP
Daikin Control
008.1420844 – 05/2014
Operating instructions
3
1Safety
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 instruction 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):
– Operating instructions for the user/owner
– Installation and maintenance instructions
– Commissioning checklist
– External unit for Daikin Altherma EHS(X/H); the associated
installation and operating instructions.
– When connecting to a Daikin solar system; the associated
installation and operating instructions.
– If a Daikin FWXV(15/20)AVEB is connected; the associated
installation and operating instructions.
– If a different Daikin heater or optional accessories are con-
nected; 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
Meaning of the warnings
Warnings in this manual are classified according into their se-
verity and probability of occurrence.
DANGER!
Draws attention to imminent danger.
Disregarding this warning can lead to serious injury or
death.
WARNING!
Indicates a potentially dangerous situation.
Disregarding this warning can result in serious injury
or death.
CAUTION!
Indicates a situation which may cause possible
damage.
Disregarding this warning can lead to damage to
property and the environment.
This symbol identifies user tips and particularly useful
information, but not warnings or hazards.
Special warning signs
Some types of danger are represented by special symbols:
Electric power
Risk of burning or scalding
Validity
Some information in this manual has limited validity. 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
Handling instructions
●Instructions on actions are shown as a list. Actions of which
the sequential order must be maintained are numbered.
Results of actions are identified with an arrow.
Display readouts of the RoCon-Control
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 varia-
tions in the Daikin Altherma EHS(X/H) or the status of the user
logged onto the Control.
1.3 Avoid 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 the safety and hazards involved.
This assumes knowledge and use of the contents of this manual,
the relevant accident prevention regulations and the recognised
safety-related and occupational medical rules.
WARNING!
This unit is not intended for use by persons (including
children) with impaired physical, sensory or mental
faculties or persons with insufficient experience and/or
expertise unless supervised by a person responsible
for ensuring their safety or are given instruction by this
person on how to use the unit.

Operating instructions
4
Daikin RoCon HP
Daikin Control
008.1420844 – 05/2014
1 xSafety
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 operated only
according to the indications in this manual.
Any other use outside the intended use is considered as im-
proper. The operator alone shall bear responsibility for any re-
sulting damage.
For any work on the equipment, which extends above and
beyond the operation of the regulating system, you must observe
the details provided in the supplementary documents, particularly
with regard to safety instructions.

2 xProduct description
Daikin RoCon HP
Daikin Control
008.1420844 – 05/2014
Operating instructions
5
2 Product description
The Control 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 Control. More information
on the Daikin Altherma EHS(X/H) and other equipment
components can be found in the supplementary docu-
ments.
The electronic, digital Control 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 corre-
sponding fault message shows the operator all the information for
fault causes.
All function settings for the Daikin Altherma EHS(X/H) and the op-
tional 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 using external control
contacts (external operating mode switching or heat demand and
SMART GRID and off-peak (EVU) functions),
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 Control RoCon HP contains a timer which can be used to set:
– 2 individually-adjustable timer programmes for room heating
and room cooling(1 (direct heating circuit),
– 2 individually-adjustable timer programmes for hot water gen-
eration,
– 1 individually-adjustable timer programme for an optional cir-
culation pump.
(1 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 Control RoCon HP are only accessible
to the specialist heating technician. This security measure en-
sures 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.
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.

Operating instructions
6
Daikin RoCon HP
Daikin Control
008.1420844 – 05/2014
3 xOperation
3Operation
3.1 General
DANGER!
If electrical components come into contactwith water,
this can cause an electric shock as well as cause
potentially fatal injuries and burns.
●The displays and the buttons on the Control
must be protected from the effects of moisture.
●To clean the Control 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 Altherma
EHS(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
3.2.1 Display
All the operating steps are supported by appropriate displays in
the clear text display on a coloured background.
Menu guiding 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 6.
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 authorisation.
1 Date display
2 Status of refrigerant com-
pressor
3 Display of expert login
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 Control - standard display
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 Temporary timer programme "Party" active
(see section 3.4.7)

3 xOperation
Daikin RoCon HP
Daikin Control
008.1420844 – 05/2014
Operating instructions
7
Tab. 3-1 Explanation of display symbols
3.2.2 Operating elements
CAUTION!
Never operate the operating elements on the con-
troller with a hard, pointed object. This can cause
damage and can cause the control 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 possi-
bilities.
Independent of the setting of the rotary switch, the
Daikin Altherma EHS(X/H) operates in accordance with
the operating mode set in the switch position "Oper-
ating Mode" or which 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
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
Tap sthing
Confirm, accept, selection and execute the
function.
Tab. 3-3 Functions of the rotary switch
2 / 3 Temporary timer programme "Away" active
(see section 3.4.7)
2 / 3 Temporary timer programme "Holiday"
active (see section 3.4.7)
2 / 3 Temporary timer programme "Vacation"
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 demands from the
heat pump, the abbreviation "ES" is
displayed instead of the current inflow
temperature.
The control system has switched to
energy saving mode
(see section 3.4.2). Superfluous
electronic 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.
Item
fig. 3-2 Symbol Explanation

Operating instructions
8
Daikin RoCon HP
Daikin Control
008.1420844 – 05/2014
3 xOperation
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 actuation. – Jump back to the previous display or pre-
vious level or
– Cancellation of a special function or an
active temporary timer programme.
Press for more
than 5 s.
– 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 setting facilities are ac-
cessible quickly and directly at the main functionlevel(selection
using the rotary switch) and that the less frequently required
setting facilities are arranged at a lower parameter level.
1
2
3
45
6
7
8
9
1 Operating Mode (section 3.4.2)
2 Set Temp Day (section 3.4.3)
3 Set Temp Night (section 3.4.4)
4 DHW Set Temp (section 3.4.5)
5 DHW Install (section 3.4.6)
6 Time Program (section 3.4.7)
7 Configuration (section 3.4.8)
8 Remote Param (section 3.4.9)
9 Info (section 3.4.1)
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 expert
(see section 3.6.1).
In normal operating mode the rotary switch should be in 
position .
After switching on and successful initialisation, the display 
automatically 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.
Adaptation to the special installation configuration is
carried out in the rotary switch position "Configu-
ration" (see section 3.4.8).
When the system is switched on, it regulates fully automatically,
based on the stipulations set in the Control RoCon HP, 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 switch position "Oper-
ating Mode" or which 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.
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
– EXT signal (external operating mode switching)
–QuiteMode
– Interlink fct
– SMART GRID - Signal
– EVU (reduced cost tariff) - Signal
– 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 5.2.1
tab. 5-1).
Keylock Function
On
Keylock Function
Keylock Function
Off
Fig. 3-4 Activating and deactivating the button block

3 xOperation
Daikin RoCon HP
Daikin Control
008.1420844 – 05/2014
Operating instructions
9
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 Rod] = "1" and
– Set parameter [Power DHW]to the maximum
value of the backup heater.
– Set rotary switch to the operating mode and
parameter [1x Hot Water] to "On". Following
successful heating, reset the parameters to
"Off".
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. De-
pending on the heat demand for the defrosting function, heating
of the direct heating circuit may be interrupted temporarily.
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 operating sta-
tuses 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 chapter 5.10.
Display operating data
The current operating data for the Daikin Altherma EHS(X/H) are
shown on the RoCon HP Control 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:
: Heating
: Cooling
: Domestic hot water generation
: Automatic defrosting function active
Ext Current energy mode of the heat pump:
LT: EVU function active and low tariff.
HT: EVU function active and standard tariff.
SGN: SMART GRID - Function active, normal
mode.
SG1: SMART GRID - Function active, rejection,
expensive power.
SG2: SMART GRID - Function active, multiple
operation, cheap power.
SG3: SMART GRID - Function active, start
command and multiple operation, 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 ex-
changer (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 (flowrate) in the heating
system

Operating instructions
10
Daikin RoCon HP
Daikin Control
008.1420844 – 05/2014
3 xOperation
Tab. 3-5 Description of the operating data displayed as an overview
Info
Overview
Water Pressure
Off
Fig. 3-5 Display operating data overview
Displaying the water pressure
On the Control 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 (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)).
The pressure limits for the safety switch-off and the set
pressure can be adjusted in the parameter settings in
level "System Configuration".
Info
Overview
Water Pressure
T-HS
Water Pressure
Fig. 3-6 Info values display (e.g. system pressure)
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
Short
designation Explanation of the displayed value