TERRA HGL/BA with

812202 Rev.0
TERRA HGL/BA with
NAVIGATOR ®1.0
Heat pumps with freshwater technology
www.idm-energie.com
Technical documentation
Operating Manual
Ausgabe 10/06/09
THE POWER FAMILY

1
2
3
4
5
6
7
8
9
10
11
12
13
Contents
2. Allgemeine Beschreibung
Contents
2
General instructions on operating the heat
pump.
Important instructions on assembling and
operating the heat pump. It is imperative
that these are observed.
All rights reserved for modifi cations to the technology and design.
Operating Manual NAV 1.0
T HE POWER FAMILY
OPERATING INSTRUCTIONS 3
1. DESCRIPTION 4
1.1. General information 4
1.2. Navigator Control for HGL Technology 5
1.3. Structure of the Navigator Control 5
2. OPERATION 6
2.1. Operation using the Control Unit 6
2.2. Displays in the Main Menu 6
2.3. Displays in the Status Bar 7
3. OPERATING MODES 8
3.1. Operating Modes via the Main Menu 8
4. TEMPERATURE SETTINGS 11
4.1. Temperature Settings via the Main Menu 11
5.1. Time Settings via the Main Menu 13
5. TIME SETTINGS 13
6. INFORMATION 18
6.1. Information via the Main Menu 18
7. ERRORS 20
7.1. Error Display in the Main Menu 20
General instructions on assembling the heat
pump.
Space for customer service
telephone number
(C) IDM ENERGIESYSTEME GMBH

T HE POWER FAMILY
Terra heat pumps may only be installed by competent
specialist staff and commissioned and serviced by a
customer service company trained to do so by IDM-
Energiesysteme GmbH.
Service and repair work must also be undertaken by a
company customer service company trained to do so
by IDM- Energisysteme GmbH.
Switching the system on and off:
Including in emergencies, the main switch at the top
of the heat pump, or in the case of CL heat pumps
by using the main switch on the independent control
cabinet, is used to switch the system on and off.
Safety of operation can no longer be guaranteed if the
equipment
- Has visible damage
- No longer operates
- Repetitive error warnings are displayed.
Should this be the case, the equipment must be shut
down, secured against unintentional operation and
customer service informed.
In the event of an error, the heat pump is automatically
switched off. The Navigator Control display issues an
error warning. (see Chapter 7).
Terra SW main switch
Terra CL main switch
Operating Instructions
Refrigerant:
Refrigerant used: □ R407C
□ R134A
In the event of any required repairs, no other refrigerant
should be used.
Refrigerant fi lling weight: ________ kg
Maximum operating pressure: 27 bar
Safety instructions for the refrigerant:
Rapid evaporation of the refrigerant can cause frost
damage.
Refrigerant vapours are heavier than air and, due to
atmospheric oxygen deprivation, can lead to suffocation.
Therefore, in the event of an incident, it must be
ensured that the installation room is well ventilated.
First aid measures:
General instructions: in the case of unconsciousness,
place the person on their side and seek medical assistance.
Never administer anything into the mouth
of an unconscious person. Use artifi cial respiration in
the event of uneven breathing or respiratory standstill.
Should diffi culties persist, consult a doctor.
Inhalation:
Go out in the fresh air. Keep the affected person in
a warm and quiet place. Artifi cial respiration and/or
oxygen may be required.
Contact with the skin:
Wash off with warm water. Immediately remove soiled,
impregnated clothing.
Contact with the eyes:
Immediately rinse with lots of water, including under
the eyelids. Consult a doctor.
If any of the housing parts are removed
this can lead to the risk of injury from an
electric shock and hot surfaces.
(C) IDM ENERGIESYSTEME GMBH Operating Manual NAV 1.0 3
1
2
3
4
5
6
7
8
9
10
11
12
13
Operating Instructions

1
2
3
4
5
6
7
8
9
10
11
12
13
Description
1. Description
1.1. General information
By purchasing this system you have acquired a
modern and effi cient heating system. Ongoing quality
controls and improvements as well as functional
checks at the plant guarantee you technically perfect
equipment. Please read through this documentation
carefully. The instructions contain important indications
regarding the safe and economic operation of
the system.
1.1.1. Sound emission
TERRA heat pumps are very quiet in operation thanks
to their design. It is however important that the site of
the heater is situated as far as possible from noisesensitive
living areas. A noise-insulating door should
be fi tted door.
1.1.2. Construction drying/screed heating
The heat pump is not designed for the increased
heat requirements when drying out construction work
or heating plaster or screed. This must be covered
by equipment to be provided by the customer if required.
1.1.3. Servicing and maintenance
Regular maintenance as well as checking and servicing
of all system components guarantee its safe and
economical operation in the long term. To achieve
this, we recommend a maintenance contract with the
relevant IDM customer service company.
1.1.4. Cleaning
If necessary, the TERRA heat pump can be cleaned
with a damp cloth. The use of cleaning agents is not
recommended.
4
Operating Manual NAV 1.0
T HE POWER FAMILY
Please strictly observe the safety instructions
in this regard to avoid hazards and
injury to people and material damage.
1.1.5. Working on the equipment
Assembly, initial commissioning, inspection, maintenance
and repairs must only be performed by authorised
specialist staff.
Heat pumps may only be installed by competent specialist
staff and commissioned by a customer service
company trained to do so by IDM-Energiesysteme
GmbH. When working on the heat pump, it must be
deactivated and secured against reactivation. When
working on the heat pump, all safety instructions
in the relevant documentation, stickers on the heat
pump itself and all other applicable safety regulations
must be observed.
1.1.6. In the event of hazards
Immediately disconnect the system from the mains,
e.g. using a separate fuse or a main switch. In the
case of fi re use suitable fi re extinguishers.
1.1.7. Refrigerant leak
The heat pump is fi lled with a non-toxic and nonfl
ammable refrigerant. If there is damage however,
refrigerant could leak and lead to oxygen deprivation.
Moreover, open fi re can also lead to harmful decomposition
products. As such, upon the immediate
detection of refrigerant leak (smell) leave the installation
location immediately and close the door. Notify
customer service.
(C) IDM ENERGIESYSTEME GMBH

T HE POWER FAMILY
1.1.8. Installing additional components
The installation of additional components which
have not been tested with the equipment may impair
function. No liability is accepted and the guarantee
becomes void in the event of damage caused for this
reason.
1.1.9. Installation room conditions
- Suffi cient ventilation
- No heavy dust formation
- No persistent air humidity
- Frost-proof
1.2. Navigator Control for HGL Technology
The following functional description is applicable to
IDM heat pumps type TERRA HGL with installed hot
gas heat exchanger and Navigator Control.
A prerequisite for the perfect operation of the control
system is clean work by the heating engineer and
electrician, as well as the proper commissioning of the
control system by a trained IDM service engineer.
The Navigator Control conforms to the EU Directives:
- 73/23/EC "Low voltage directive"
- 93/68/EC "Electromagnetic compatibility directive"
- EN 61000-6-2 "Electromagnetic compatibility -
resistance"
- EN 61000-6-3 "Electromagnetic comparability -
interference transmission"
- EN 61000-3-2 "Limit values for harmonic current
emissions"
- EN 61000-3-3+A1 "Limitation of voltage fl uctuations"
1.3. Structure of the Navigator Control
Description
The Navigator Control is comprised of a central unit
and the control unit. Furthermore, in accordance with
requirements, an internal heating circuit expansion
module for two additional heating circuits, as well as
an external heating circuit expansion module for three
additional heating circuits, can be connected. The
central unit also has an interface for a GSM module
as well as a stepper motor module.
Via an SD card slot, on the actual central unit, it is
possible to carry out evaluations using an event log.
(C) IDM ENERGIESYSTEME GMBH Operating Manual NAV 1.0 5
1
2
3
4
5
6
7
8
9
10
11
12
13
Description

1
2
3
4
5
6
7
8
9
10
11
12
13
Operation
2. Allgemeine Operation Beschreibung
2.1. Operation using the Control Unit
The heat pump is put into operation via the main
switch. After actuating the main switch, the Navigator
Control starts automatically.
In systems that are already confi gured the main menu
appears on the LCD after initialisation.
The operation of the Navigator Control is performed
using the control unit. The control unit enables easy
menu-driven operation on the LCD using 6 membrane
keys.
6
F1
By using both arrow keys it is possible
to move between the individual menu
items. The symbol currently selected
has a black background.
By using the selection keys to the left and
right of the arrow keys, the command
with the black background at the top of
the LCD can be executed.
Using the F1 key, it is possible to change
between the status displays on the righthand
edge of the screen. The status displays
will be described in greater detail
further ahead.
2.2. Displays in the Main Menu
In the main menu the fi ve submenus are shown by
way of symbols. By using the arrow keys it is possible
to select the individual menu symbols. The submenus
are described in greater detail further ahead.
The heat pump status is shown on the status display
on the right-hand screen edge. Using the F1 key it is
possible to change between the individual status bars
HC(), Info and System.
F2
Operating Manual NAV 1.0
NAVIGATOR 1.0
F1
F2
T HE POWER FAMILY
Using the F2 key, the system can be
switched off or switched on again respectively.
(C) IDM ENERGIESYSTEME GMBH

T HE POWER FAMILY
2.3. Displays in the Status Bar
Info status bar
System status bar
Heating circuit status bar
Description of symbols
q
q
�
Current outside temp.
Mean outside temp.
Current time
Current date
Buffer tank temperature
Cold reservoir temperature
Hygienik temperature
Flow temp. heat pump
Heat source temp.
Heat pump in priority mode
Heating stage
Room temp. set value
Room temp. real value or
status room thermostat
Flow temp. set value
Flow temp. real value
Heating circuit in heating mode
Operation according to the heating
program
Thermostat open - HC pump off
Thermostat closed - HC pump on
System / heating circuit in heating mode
(C) IDM ENERGIESYSTEME GMBH Operating Manual NAV 1.0 7
�
1
Operation
In the Info status bar, the current outside temperature
is displayed on the outside sensor. The mean outside
temperature is calculated over a period of time
(usually 16 hours). Furthermore, the current time and
the date are shown.
In the System status bar, the temperatures for the
buffer tank, cold reservoir, Hygienik, heat pump fl ow
and heat source are displayed. In cascade systems,
the heating stage shows the number of stages in
operation.
In the heating circuit status bar the most important
data for the individual heating circuits are listed.
An individual status bar is displayed for each parameterised
heating circuit. The status bar header shows
which heating circuit is currently activated.
Pump heating circuit in operation
Mixer heating circuit open
Mixer heating circuit closed
Priority mode
Party function - active Holiday function - active
Heating circuit permanent in normal mode
Symbol for cooling mode
Temperature values are only shown for
those devices that are confi gured in the
engineer level.
Heating circuit permanent in ECO mode
Heating stage 1
1
2
3
4
5
6
7
8
9
10
11
12
13
Operation

1
2
3
4
5
6
7
8
9
10
11
12
13
Operating modes
3. Allgemeine Operating modes Beschreibung
3.1. Operating Modes via the Main Menu
The individual heating circuits can be parameterised
via the submenu "Operating Modes".
In order to access the "Operating Modes" menu, use
the arrow keys to select the symbol for operating
modes in the main menu. As soon as the symbol has
a black background, it is possible to open the respective
subprogram by using the right-hand selection
key.
In the operating mode menu, the operating modes of
the system in the individual heating circuits can be
selected.
By using the arrow keys it is possible to move between
the menu items. The current set status is always displayed
(e.g. operating mode System - Automatic) on
the right next to the operating function.
In order to carry out a setting, the desired menu
item (e.g. operating mode System) must have a
black background. The respective submenu can be
accessed by using the right-hand selection key. It is
possible to return to the superordinate menu using
the left-hand selection key and the command "Back".
Depending on the parameterisation of the heat pump,
only the heating circuits using the operating mode
menu are shown.
8
Operating Manual NAV 1.0
T HE POWER FAMILY
(C) IDM ENERGIESYSTEME GMBH

T HE POWER FAMILY
3.1.1. System operating mode
In the submenu for the System operating mode it is
possible to select between the functions Off, Automatic
and Tapwater. Usually the Automatic function is
set. The arrow keys are used to change between the
operating modes.
Operating modes
System operating modes parameters
Par. No. Name Description
PROGO Off The heat pump is not in operation unless the frost-proof function is active.
PROGO Automatic The heat pump runs in the heating mode in accordance with the set heating
times.
PROGO Hot water The heat pump only runs for storage tank charging without heating mode.
PROGO Tapwater charging once The heat pump performs the one storage tank charging procedure. After comple-
only
tion of the storage tank charging, the heat pump continues to run in the previous
operating mode.
3.1.2. Holiday program
In the holiday program submenu it is possible to set
a date range during which the heating and cooling
circuits can be operated in the ECO mode. During
this time, no storage tank charging is carried out.
After the set holiday program has elapsed, all the
consumers are administered in accordance with the
timer program.
The date for the holiday program can be set by using
the right-hand selection key and the arrow keys. After
completing the setting, the date is saved using the
right-hand selection key.
3.1.3. Party function
The consumers are controlled by the ECO mode up
to the end date / time entered.
The setting is carried out using the right-hand selection
key and the arrow keys. After completing the setting,
the date and time are saved using the right-hand
selection key.
The party function is only active if the individual
heating and cooling circuits are set
to automatic (timer program).
(C) IDM ENERGIESYSTEME GMBH Operating Manual NAV 1.0 9
1
2
3
4
5
6
7
8
9
10
11
12
13
Operating modes

1
2
3
4
5
6
7
8
9
10
11
12
13
Operating modes
3. Allgemeine Beschreibung
Operating modes
3.1.4. HC mode
All parameterised heating circuits are shown in the
operating modes menu. It is possible to change
between operating modes for the respective heating
circuits using the arrow keys.
10
Operating Manual NAV 1.0
T HE POWER FAMILY
Heating circuit operating modes parameters
Par. No. Name Description
HC..01 Off The heating circuit is not in operation unless the frost-proof function is active.
HC..01 Timer program The heating circuit is operated according to the set heating times with Day set
room temperature. Four heating times can be set per day for the heating circuit.
HC..01 Normal The heating circuit is operated constantly with the Normal Heating set room
temperature.
HC..01 ECO The heating circuit is operated constantly with the ECO Heating set room
temperature.
HC..01 Manual heating The outside temperature for the calculation of the individual heating circuits is
replaced with 7°C.
(C) IDM ENERGIESYSTEME GMBH

T HE POWER FAMILY
4.1. Temperature Settings via the Main Menu
The temperatures for fresh water capture can be set
using the second menu item in the main menu, as
well as the temperatures for the individual heating
circuits.
4.1.1. Fresh water temperature setting
Fresh water temperature parameters
Par.
No.
Name Description
4. Temperature Settings
FW30 Fresh water temperature The fresh water temperature gives the set temperature for the tapwater capture.
It is possible to carry out this setting over the temperature range from 35.00°C
to 60.00°C. The desired set temperature is set using the arrow keys. The new
temperature value is confi rmed by using the right-hand selection key.
4.1.2. Heating circuits temperature setting
The parameters that can be set for the heating circuit
temperatures are in accordance with the machine
confi guration. Only the setting parameters that are
relevant with regard to the machine confi guration are
displayed.
Heating circuit temperatures parameters
Par.
No.
Name Description
HC104 Normal Heating Room
Temp.
HC105 ECO Heating Room
Temperature
Upon delivery of the equipment, the default value is set at 46.00°C.
Note: 60°C is only possible for heat pumps using the refrigerant R134a.
The Normal Heating Room Temperature can be set between 15.00°C and 30.00°C.
The duration during which the temperature is maintained depends on the respective
heating program.
The ECO Heating Room Temperature gives the temperature outside the selected
heating times.
The ECO Heating Room Temperature can be set between 10.00°C and 25.00°C.
(C) IDM ENERGIESYSTEME GMBH Operating Manual NAV 1.0 11
1
2
3
4
5
6
7
8
9
10
11
12
13
Temperature Settings

1
2
3
4
5
6
7
8
9
10
11
12
13
Temperature Settings
4. Allgemeine Beschreibung
Temperature Settings
Heating circuit temperatures parameters
Par.
No.
Name Description
12
Operating Manual NAV 1.0
T HE POWER FAMILY
HC108 Heating limit For mixer and uncontrolled heating circuits a heating limit can be set in the user menu
above which the heating mode is blocked.
HC109 Room infl uence
Above this outside temperature, no further heating demand is generated by the
heating circuit. The heating limit is deactivated with the setting 0.
The room infl uence factor shows to what extent the control system reacts to the room
temperature.
HC110 Heating curve
If the room unit is assembled in a room affected by other heat sources (e.g. a tiled
stove) a smaller proportion should be selected. The temperature of the room in which
the room unit is assembled, also affects the heating of the other rooms.
Note: Parameter is only visible in the case of confi gured room unit.
Given the steepness of the characteristic heating curve, the relation of the outside
temperature to the required fl ow temperature is established.
HC150 Normal Cooling Room
Temp.
HC151 ECO Cooling Room
Temp.
2,6
2,4
2,2
2
The greater the steepness of the characteristic curve is set, the higher the fl ow
temperature for the heating depending on the outside temperature as well as on the
heating and cooling limits.
Parameter for the desired room temperature during Normal Cooling mode.
Parameter for the desired room temperature during ECO Cooling mode.
HC153 Cooling fl ow Parameter for the desired cooling circuit fl ow temperature.
HC154 Dew-point gap This shows the minimum temperature difference between the dew-point (room humidity
sensor) and the set fl ow temperature.
HC108 Cooling limit Below this outside temperature no further cooling demand is generated by the
cooling circuit.
1,8
Outside temperature [°C]
1,6
1,4
1,2
1
0,8
0,6
0,4
(C) IDM ENERGIESYSTEME GMBH
65
60
55
50
45
40
35
30
25
20
[°C]
Flow temperature

T HE POWER FAMILY
5.1. Time Settings via the Main Menu
All time settings can be carried out on the control
system under the third menu item.
5.1.1. Date and time
The date and time can be set in the submenu
"Times".
In order to carry out the setting, "Date/Time" must
be selected from the Times - Menu. The respective
submenu can be accessed by using the right-hand
selection key.
In the "Date and Time" menu, in order to carry out the
setting, the right-hand selection key must be used to
select the function "Change".
Subsequently, the arrow keys can be used to modify
the respective established value. The next setting
value can be accessed by using the right-hand selection
key.
Once all values have been set, the new setting can
be saved using the right-hand selection key.
The changeover between summertime and wintertime
is automatically carried out by the control system.
5. Time Settings
(C) IDM ENERGIESYSTEME GMBH Operating Manual NAV 1.0 13
1
2
3
4
5
6
7
8
9
10
11
12
13
Time Settings

1
2
3
4
5
6
7
8
9
10
11
12
13
Time Settings
5. Allgemeine Beschreibung
Time Settings
5.1.2. Program priority setting
By using the time setting "Program Priority", times
can be established during which a priority storage
tank charging takes place. The storage tank charging
is preferentially carried out prior to heating up the
heating circuits.
During the priority charging procedure, the heating,
when operating with a Hygienik, is not supplied with
heat. When using an additional buffer accumulator,
the supply to the heating circuits is guaranteed via the
additional buffer accumulator in the priority charging
mode.
During the priority charging procedure, the speed
of the charging pump and, as such, the throughput
through the condenser and the HGL exchanger, is
reduced to the extent that the accumulator is once
again charged with the desired HGL temperature
(e.g. 58°C).
Procedure for setting the time:
It is possible to set an arbitrary number of times for
the priority charging for each weekday.
Under the menu item Program Priority it is possible
to change between the individual functions via the
left-hand selection button. The respective function is
selected using the right-hand selection key.
Once the desired day has been chosen, the left-hand
selection key is used to select the Change function.
By using the right-hand selection key, the time for
Activ (priority charging) and Inactiv (no priority charging)
can be set.
14
Operating Manual NAV 1.0
T HE POWER FAMILY
(C) IDM ENERGIESYSTEME GMBH

T HE POWER FAMILY
Setting the times using the cursor:
The Cursor function is selected by using the righthand
selection key. The current status for the cursor
is displayed directly above the right-hand selection
key.
Position Cursor - The cursor can be displaced along
the time bar without having any effect
Cursor Activ - The cursor marks the time range for
"Priority charging". By displacing the cursor with the
arrow keys the bar above has a dark background.
Cursor Inactiv - The cursor marks the time range
for "No Priority charging". By displacing the cursor
with the arrow keys the bar above has a light background.
The times for Activ or Inactiv can be arbitrarily set.
Copying the settings to another day:
The settings can be copied to another day. To do so
the day to be copied must be active. By using the
left-hand selection key the Copy function is selected
and the right-hand selection key is used to carry out
the action. Subsequently, the desired day to which
the settings are to be copied is selected. By using the
left-hand selection key the Paste function is selected
and the right-hand selection key is used to carry out
the action.
Time Settings
(C) IDM ENERGIESYSTEME GMBH Operating Manual NAV 1.0 15
1
2
3
4
5
6
7
8
9
10
11
12
13
Time Settings

1
2
3
4
5
6
7
8
9
10
11
12
13
Time Settings
5. Allgemeine Beschreibung
Time Settings
5.1.3. Heating circuit program setting
In the "Program HC .." the times for the heating mode
of the heating circuits to be parameterised can be
set.
For each heating circuit, it is possible to set up to
24 heating times for each day selected. The setting
for the heating times is carried out as described for
setting the times in Program Priority mode.
Normal - dark bar - Heating mode at room temp.
Normal Heating
ECO - light bar - Heating mode at room temp. ECO
Heating
5.1.4. Setting EVU blocking time
The blocking time must be maintained by the respective
EVU. It can be set in the menu "EVU Blocking
Time". The entered blocking time is applicable to each
day.
These times can be set to a min. time interval of
0.5 hours.
16
Operating Manual NAV 1.0
T HE POWER FAMILY
(C) IDM ENERGIESYSTEME GMBH

T HE POWER FAMILY
5.1.5. Fan speed reduction in the CL version
The fan speed reduction can be set for Terra CL heat
pumps. By using the fan speed reduction function,
times can be set during which the fan speed on the
evaporator is reduced.
The reduced speed is set by the manufacturer and
can only be modifi ed by customer service.
Time Settings
(C) IDM ENERGIESYSTEME GMBH Operating Manual NAV 1.0 17
1
2
3
4
5
6
7
8
9
10
11
12
13
Time Settings

1
2
3
4
5
6
7
8
9
10
11
12
13
Information
6. Allgemeine InformationBeschreibung
6.1. Information via the Main Menu
Under the fourth menu item of the main menu, various
status requests regarding the system can be made.
6.1.1. Inputs / outputs
Via the Inputs / Outputs Menu, the status of all inputs
(sensors, digital inputs), as well as the status of the
outputs ( analogue outputs, digital outputs) can be
requested.
The status request can be helpful during start-up as
well as when solving errors.
Requests Inputs / Outputs
Par.
No.
Name Description
- Sensor Current temperatures of the respective sensor in °C
- Digital inputs Status of the digital inputs (O- Open, C - Closed)
- Analogue outputs Display of the voltage at the outputs (0-10V)
18
Bedienungsanleitung NAV 1.0
T HE POWER FAMILY
- Digital outputs
Display of the modulation in %
Status (Off - On)
- Bus connection This is where the current status of the cascades CAN - Bus participants is displayed.
6.1.2. System information
In the submenu System Information, the current
software version, as well as the total times for the
individual operating modes, the running times for
the heating stages and the switching signals of the
heating stages that have been performed by the heat
pump are shown in hours.
(C) IDM ENERGIESYSTEME GMBH

T HE POWER FAMILY
6.1.3. Heat meter
If a heat meter is installed, under the menu item
Heat Meter it is possible to request the heating and
cooling performance in [kW]. Furthermore, the current
actual performance of HP fl ow and HGL fl ow is
shown in [W].
6.1.4. GSM Module
Via the submenu "GSM Module“ the current status,
as well as the signal quality, is displayed via the GSM
antenna.
The GSM Module allows storing three mobile phone
numbers which, in the event of failure, can be reported
via SMS (see operating instructions GSM Module).
If no GSM Module is installed, No is displayed at
"SMS Modul Ready".
The SimCard State parameter provides the current
status of the SimCard. When operating correctly,
SimCard State 3 is displayed.
0 ..... Initialisation
1 ..... SimCard not used
2 ..... SimCard used
3 ..... SimCard ready
4 ..... SimCard error
5 ..... PIN OK - initialisation
6 ..... PIN request not deactivated
Before the SimCard can be used the PIN
request must be deactivated via a mobile
phone.
Information
(C) IDM ENERGIESYSTEME GMBH Bedienungsanleitung NAV 1.0 19
1
2
3
4
5
6
7
8
9
10
11
12
13
Information

1
2
3
4
5
6
7
8
9
10
11
12
13
Faults
7. Allgemeine Faults Beschreibung
7.1. Error Display in the Main Menu
When an error occurs an error notifi cation is shown
on the display.
Via the left-hand selection key it is possible to access
the submenu Error where a more detailed description
of the error is given.
Sensor error
Error
No.
Designation Description
100 Outside sensor (B32) Short circuit
101 Interruption
102 Heat pump fl ow sensor (B33) Short circuit
103 Interruption
104 HGL fl ow sensor (B35) Short circuit
105 Interruption
106 Heat source sensor (B36) Short circuit
107 Interruption
108 Heat accumulator sensor (B39) Short circuit
109 Interruption
110 Cold reservoir sensor (B40) Short circuit
111 Interruption
112 Hygienik sensor (B41) Short circuit
113 Interruption
114 Fresh water station sensor (B42) Short circuit
115 Interruption
116 Flow sensor HC A (B51) Short circuit
117 Interruption
118 Flow sensor HC B (B52) Short circuit
119 Interruption
120 Room sensor HCA (B61) Short circuit
121 Interruption
122 Room sensor HCB (B62) Short circuit
123 Interruption
126 Room humidity sensor (B31) Short circuit
127 Interruption
20
Operating Manual NAV 1.0
T HE POWER FAMILY
(C) IDM ENERGIESYSTEME GMBH

T HE POWER FAMILY
Sensor error
Error
No.
Designation Description
130 Flow sensor HC C Short circuit
131 Interruption
132 Flow sensor HC D Short circuit
133 Interruption
134 Room sensor HC C Short circuit
135 Interruption
136 Room sensor HC D Short circuit
137 Interruption
138 Flow sensor HC E Short circuit
139 Interruption
140 Flow sensor HC F Short circuit
141 Interruption
142 Flow sensor HC G Short circuit
143 Interruption
144 Room sensor HC E Short circuit
145 Interruption
146 Room sensor HC F Short circuit
147 Interruption
148 Room sensor HC G Short circuit
149 Interruption
System error
Error
No.
Designation Description
Faults
020 Heat pump fl ow maximum temperature Heat pump fl ow temperature is above the set maximum temperature.
021 Heat pump fl ow minimum temperature Heat pump fl ow temperature is below the set minimum temperature.
022 Low pressure switch The low pressure switch has switched off the heat pump (< 3 times
in 24h).
023 Low pressure lock pressure fault The low pressure switch has switched off the heat pump (> 3 times
in 24h). The heat pump is no longer triggered.
024 High pressure switch The high pressure switch has switched off the heat pump (< 3 times
in 24h).
025 High pressure lock pressure fault The high pressure switch has switched off the heat pump (> 3 times
in 24h). The heat pump is no longer triggered.
(C) IDM ENERGIESYSTEME GMBH Operating Manual NAV 1.0 21
1
2
3
4
5
6
7
8
9
10
11
12
13
Faults

1
2
3
4
5
6
7
8
9
10
11
12
13
Faults
7. Allgemeine Beschreibung
Faults
System error
Error
No.
Designation Description
22
Operating Manual NAV 1.0
T HE POWER FAMILY
026 Flow monitoring The fl ow switch in ground water systems has switched off the heat
pump (< 3 times in 24h).
027 Flow lock The fl ow switch in ground water systems has switched off the heat
pump (> 3 times in 24h). The heat pump is no longer triggered.
028 Start-up current limiter see LED Error start-up current limiter (< 5 times in 24h). The type of error is
displayed on the start-up current limiter.
029 Start-up current limiter 5x in 24h Error start-up current limiter (> 5 times in 24h). The heat pump is no
longer triggered.
030 Motor protection heat source pump The motor protection for the heat source pump has been triggered
(< 5 times in 24h).
031 Motor protection heat source 5x in 24h The motor protection for the heat source pump has been triggered
(> 5 times in 24h). The heat pump is no longer triggered.
032 Maximum defrosting time exceeded The maximum defrosting time has been exceeded
033 Minimum condenser temperature undershot
The heat pump has been switched off due to undershooting the minimum
condenser temperature.
034 Fan error The control system for the fan has detected a functional error.
036 Electric immersion heater overheating The safety thermostat of the immersion heater has been activated.
050 Dew-point monitoring device has been
activated
The heat pump has been switched off by the dew-point monitoring
device.
060 Heat source temperature The measured heat source outlet temperature undershoots the
minimum heat source temperature.
061 Warning heat source temperature The heat source outlet temperature reaches a critical value min. heat
source temperature + 2K
(C) IDM ENERGIESYSTEME GMBH

Notes
T HE POWER FAMILY
Notes
(C) IDM ENERGIESYSTEME GMBH Operating Manual NAV 1.0 23
1
2
3
4
5
6
7
8
9
10
11
12
13

Always there for you.
Your IDM partner
ONE STEP AHEAD*
T HE POWER FAMILY
IDM - service technology
IDM Academy
IDM HEADQUARTERS IN EASTERN TYROL, AUSTRIA
IDM ENERGIESYSTEME GMBH
Seblas 16 – 18 A-9971 Matrei in Osttirol, Austria
Telephone +43(0)4875.6172 - 0 Fax +43(0)4875.6172 - 85
E-mail team@idm-energie.at
www.idm-energie.com
THE POWER FAMILY
COMMISSIONING – SERVICING – ON-SITE SERVICE
Our service technicians are happy to help on-site. Contact
details for your regional customer service centre can be
found on our website www.idm-energie.com.
PRACTICAL KNOWLEDGE FOR SALES AND TECHNOLOGY
The comprehensive range of seminars for specialists at the
IDM POWER FAMILY is available to you at all times on our
website www.idm-energie.com. We look forward to
receiving your registration.
© IDM ENERGIESYSTEME GMBH Matrei i. Osttirol 10.06.09 · Errors and omissions excepted