CTC Union 406 Manual

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162 105 30-2 2013-09-23
Installation and Maintenance Manual
CTC EcoHeat 400
400V 3N~ / 230V 1N~

1. Disconnect the cooling module’s power cable con-
nector and hoses.
2. Attach the two carrying handles to the bottom of the
cooling module.
3. Unscrew the cooling module’s screws. 4. Pull the cooling module by first lifting the front edge
slightly with the carrying handles.
5. Lift the cooling module using the carrying handles and
shoulder straps.
6. Lift the cooling module into the product using the
carrying handles and shoulder straps. Remove the
carrying handles and reconnect the power cable,
hoses and screws.
Removing the cooling module

162 105 30-2 2013-09-23
Installation and maintenance manual
CTC EcoHeat 400
400 V 3N~ / 230 V 1N~

4
CTC EcoHeat 400
General Information
As your own reminder
Fill in the information below. It may come in useful if anything should happen.
Product : Manufacturing number :
Installer: Name:
Date: Tel. no.:
Electrical installer: Name:
Date: Tel. no.:
General Information
Enertech AB provides the information with reservation for any typing errors and subject to modification.
Table of Contents
GENERAL INFORMATION
Check list _____________________________________ 6
Important to remember!_________________________ 7
Safety Instructions _____________________________ 7
Your home’s heating installation _________________ 8
1. Technical Data _____________________________________________________ 11
1.1 Three-phase 400V 3N~ ____________________________________11
1.2 Single phase 230V 1N~ ____________________________________12
1.3 Measurements and connections________________________13
2. CTC EcoHeat 400 design ___________________________________ 14
3. Control system ____________________________________________________ 15
3.1 Some control data____________________________________________15
3.2 Factory values _________________________________________________ 15
3.3 My settings______________________________________________________15
4. Detail Description Menus___________________________________ 16
4.1 Start menu ______________________________________________________16
4.2 Room temp. ____________________________________________________17
4.2.1 Setting Room temp without a sensor_________ 17
4.2.2 Outdoor Sensor/Room Sensor Faults ________ 17
4.2.3 Night reduction temperature ________________ 18
4.2.4 Holiday __________________________________ 18
4.3 DHW ______________________________________________________________19
4.3.1 Weekly program DHW _____________________ 19
4.4 Operation________________________________________________________ 20
4.4.1 Operation data CTC EcoHeat _______________ 21
4.4.2 Stored operation data _____________________ 22
4.4.3 Operation data compressor_________________ 23
4.4.4 Operation data heating ____________________ 23
4.5 Installer ___________________________________________________________24
4.5.1 Time/Language___________________________ 24
4.5.2 Settings _________________________________ 25
4.5.3 Define system ____________________________ 29
4.5.4 Service __________________________________ 30
5. Menu overview ____________________________________________________ 32
6. Operation and Maintenance ______________________________ 35
7. Fault Tracing/Appropriate Measures ________________ 36
7.1 Information messages ______________________________________ 38
7.2 Alarm messages ______________________________________________39
INSTALLATION
8. Installation____________________________________________________________ 41
8.1 Transportation__________________________________________________41
8.2 Unpacking_______________________________________________________ 41
9. Pipe installation___________________________________________________ 42
9.1 Filling ______________________________________________________________42
9.2 Schematic diagram __________________________________________43
10. Connecting the brine system_____________________________ 47
10.1 Brine system schematic diagram _______________________ 49
10.2 External systems (solar heating, pool heating) _____51
11. Electrical installation___________________________________________ 52
11.1 Settings made by the installation electrician. _______55
11.2 Installing a backup power supply _______________________ 55
11.3 Tank schematic diagram 400V 3N~____________________56
11.4 Cooling module schematic diagram 400V 3N~____58
11.5 Parts list 400V 3N~ __________________________________________ 59
11.6 Tank schematic diagram 230V 1N~____________________60
11.7 Cooling module schematic diagram 230V 1N~____62
11.8 Parts list 230V 1N~ __________________________________________ 63
12. Sensor Resistance ______________________________________________ 64
13. First start______________________________________________________________ 65
14. Declaration of Conformity __________________________________ 66

5
CTC EcoHeat 400
General Information
Congratulations on buying your new product
You have just bought a CTC EcoHeat 400, which we hope
you will be very pleased with. In the following pages you
can read about how to operate and maintain your heat
pump. One chapter is written for the property owner and
one chapter for the installer.
Keep this handbook containing the installation and
maintenance instructions. If it is looked after properly, you
will be able to enjoy the use of your CTC EcoHeat 400 for
many years. This manual will provide all the information you
will need.
The complete heat pump
CTC EcoHeat 400 is a complete heat pump which meets
your home’s heating and hot water requirements. It is
equipped with a motorised mixing valve which ensures
correct and even temperatures are supplied to your heating
system. In addition, CTC EcoHeat 400 has a built-in
circulation pump for connection to ground/rock circuits,
known as the “collector”. This can be connected, as you
wish, to the left, right or back of the heat pump.
CTC EcoHeat 400 has a control system
which:
• Monitors all heat pump functions
• Permits individual settings
• Displays desired values, such as temperatures,
operation times, energy consumption and fault signals
• Facilitates the setting of values and troubleshooting in
a simple and well-structured way
The built-in copper coil provides copious amounts of
hot water. CTC EcoHeat 400 also has a summer-time
basement heating function and a floor heating block, which
maximises the temperature supplied to the floor circuits.
Using the integrated night reduction function, you can set
and change the temperature in the house during the day,
from one day to the next.
Easily accessible electrical components and cooling
modules, along with effective troubleshooting functions
in the control program make CTC EcoHeat 400 easy to
service. It comes with a room sensor as standard, which is
equipped with an LED which flashes in the event of a fault.

6
CTC EcoHeat 400
General Information
Check list
The check list must be completed by the installer.
• In the event of a service, this information may be called for.
• Installation shall always be done according to the installation and maintenance instructions.
• Installation shall always be carried out in a professional manner.
• Following installation, the unit shall be inspected and checked for functionality.
The points below shall be checked off.
Pipe installation
The heat pump is filled, positioned and adjusted in the correct manner according to the instructions.
The heat pump is positioned so that it can be serviced.
The radiator pump's capacity for the required flow.
Open radiator valves and other relevant valves.
Leak test
Bleed the system.
Safety valve function test.
The waste pipe is connected to the draining gutter.
Electrical installation
Compressor, direction of rotation
Power switch
Correctly terminated wiring
Requisite sensors for applicable system
Outdoor sensors
Room sensors (optional)
Accessories
Customer information (adapted to the relevant installation)
Start-up with customer/installer.
Menus/controls for selected system
Installation and maintenance manual supplied to the customer
Check and filling, heating system
Fine tuning information, heat curve
Alarm information
Mixing valve
Safety valve function test
Warranty
Information on procedures for fault registration
_____________________________________ ______________________________________
Date / Customer Date / Installer

7
CTC EcoHeat 400
General Information
Important to remember!
Check the following points in particular at the time of delivery and installation:
• The product must be transported and stored in a standing position. When
moving the product, it can be placed temporarily on its back.
• Remove the packaging and check before installation that the product has
not been damaged in transit. Report any transport damage to the carrier.
• Place the product on a solid foundation, preferably made of concrete.
If the product needs to be placed on a soft carpet, base plates must
be placed under the adjustable feet.
• Remember to leave a service area of at least 1 m in front of the product.
• The product must not be placed below floor level either.
• Avoid placing EcoHeat in rooms with lightly insulated walls where
neighbouring rooms may be disturbed by the compressor and vibrations.
Safety Instructions
The following safety instructions must be observed when handling, installing and
using the heat pump:
• Electrical isolation must be carried out before maintenance, repair or
installation commences.
• Correct flushing of the system shall be carried out before the system is filled
with a recommended brine/heating fluid.
• When handling the product with a hoist ring or similar device, make sure
that the lifting equipment, eyebolts etc. are not damaged. Never stand
under the hoisted product.
• Never jeopardize safety by removing bolted covers, hoods or similar.
• Never jeopardize safety by deactivating safety equipment.
• Any work carried out on the refrigeration circuit cooling element should be
done by authorised personnel only.
• Safety valve check:
-The safety valve for heat pump/heating system and domestic hot water
(DHW) must be checked on a regular basis. See the chapter on Operation
and maintenance.
!If these instructions are not followed when installing, operating and maintaining the
system, Enertech’s commitment under the applicable warranty terms is not binding

8
CTC EcoHeat 400
General Information
Your home’s heating installation
Your home's heating installation
!The set heating curve is always given priority. The room sensor can only increase
or decrease the compensated flow temperature to a certain extent above the set
heating curve. Where operating without a room sensor, the selected heating curve
determines the flow temperature supplied to the radiators purely from the outside
temperature reading.
The House Heating Curve
The heating curve is the central part of the product’s control system. It is the heating
curve which determines the compensated flow temperature requirements for your
property dependent upon the outdoor temperatures. It is important that the heating
curve is correctly adjusted, so that you achieve the best operation and economy
possible.
One property requires a radiator temperature of 30°C when the outdoor temperature
is 0°C, whilst a different property requires 40°C. The difference between different
properties is determined by the radiator surface area, the number of radiators and how
well insulated the house is.
Adjustment of Default Values for the Heating Curve
You define the heating curve yourself for your property by setting two values in
the product control system. This is achieved by selecting the options Inclination or
Adjustment under the Installer/Settings/Radiator system menu. Ask your installer to
help you set these values.
It is extremely important to set the heating curve and, in some cases, unfortunately,
this process may take several weeks. The best way of doing this, upon the initial
start-up, is to select operation without any room sensor. The system then operates
using the outdoor temperature reading and the property’s heating curve only.
During the adjustment period it is important that:
• the night reduction function is not selected.
• all thermostat valves on the radiators be fully opened.
• the outdoor temperature is not higher than +5°C. (If the outdoor temperature is
higher when the system is installed, use the factory set curve until the outdoor
temperature falls to a suitable level.)
• the radiator system is operational and correctly adjusted between different
circuits.
Appropriate Default Values
During installation you can seldom achieve a precise setting for the heating
curve instantly. In this case, the values given below may provide a good starting
point. Radiators with small heat-emission surfaces require a higher primary flow
temperature. You can adjust the gradient (heating curve gradient) for your heating
system under the Installer/Settings/Radiator system menu.
Recommended values are:
Floor heating only Inclination 35
Low temperature system (well insulated houses) Inclination 40
Normal temperature system (factory setting) Inclination 50
High temperature system
(older houses, small radiators, poorly insulated) Inclination 60

9
CTC EcoHeat 400
General Information
Adjusting the heating curve
The method described below can be used to adjust the heating curve correctly.
Adjustment if it is too cold indoors
• If the outdoor temperature is lower than 0 degrees:
Increase the Inclination value by a couple of degrees.
Wait 24 hours to see if any further adjustment is required.
• If the outdoor temperature is higher than 0 degrees:
Increase the Adjustment value by a couple of degrees.
Wait 24 hours to see if any further adjustment is required.
Adjustment if it is too warm indoors
• If the outdoor temperature is lower than 0 degrees:
Decrease the Inclination value by a couple of degrees.
Wait 24 hours to see if any further adjustment is required.
• If the outdoor temperature is higher than 0 degrees:
Decrease the Adjustment value by a couple of degrees.
Wait 24 hours to see if any further adjustment is required.
!If the values set are too low, this may mean that the desired room temperature
is not being reached. You then need to adjust the heating curve, as necessary,
following the method shown above.
When the basic values have been set more or less correctly, the curve can be
finely adjusted directly using the Room temp. shown on the home menu screen.
Description of inclination and adjustment
Inclination 50:
The value set is the outgoing temperature of the water supplied to the radiators at an
outdoor temperature of –15°C, e.g. 50°C. A lower value is selected where a radiator
system has large radiator areas (a low temperature system). Floor heating systems
require low temperatures. A low value should therefore be selected. The value must be
increased for high temperature systems to achieve a high enough indoor temperature.
Adjustment 0:
The adjustment means that the flow temperature can be raised or lowered at a specific
outdoor temperature.
Adjustment 0 means 50°C primary flow when the outside temperature is -15°C.
Adjustment -5 means 45°C primary flow when the outside temperature is -15°C.
For example:
Inclination 50 means that the temperature of the water supplied to the radiators will
be 50°C when the outdoor temperature is –15°C (if adjustment is set to 0). If the
adjustment is set to +5, the temperature will be 55°C instead. The curve is increased
by 5°C at all temperatures, i.e. it is parallel displaced by 5°C.

10
CTC EcoHeat 400
General Information
Examples of Heating Curves
You can see in the diagram below how the heating curve
changes with different Inclination settings. The gradient of
the curve shows the temperatures that the radiators require
at different outdoor temperatures.
Curve Inclination
The inclination value which is set is the primary flow
temperature when the outside temperature is –15°C.
Primary Flow Temperature
Primary Flow Temperature
Primary Flow Temperature
Primary Flow Temperature
Outside Temperature
Outside Temperature
Outside Temperature
Heating off, out
Heating off, out
Heating off, out
Outside Temperature
Adjustment
The curve can be parallel displaced (adjusted) by the
desired number of degrees to adapt to different systems/
houses.
An example
Inclination 60°C
Adjustment 0°C
In this example, the maximum outgoing primary flow
temperature is set at 55°C.
The minimum permitted primary flow temperature is 27°C
(e.g. summer-time basement heating or the floor circuits in
a bathroom).
Summer-time operation
All properties have internal heat gains (lamps, oven,
personal heat etc.), which means that the heating can be
switched off when the outdoor temperature is lower than
the desired room temperature. The better insulated the
house is, the earlier the heating from the heat pump can be
switched off.
The example shows the product set at the default value of
18°C. This Heating off value can be changed under the
Installer/Settings/Radiator system menu.
When the heat is switched off in this way, the radiator
pump stops and the mixing valve is shut down. The heating
starts up automatically when it is required again.
Inclination 50°C
Adjustment +5°C
Inclination 50°C
Adjustment 0°C

11
CTC EcoHeat 400
General Information
1. Technical Data
1.1 Three-phase 400V 3N~
EcoHeat 406 EcoHeat 408 EcoHeat 410 EcoHeat 412
400V 3N~
kW 11.7 12.6 13.4 14.1
kW 0 - 9.0
kW 6.9 / 7.8 / 9 2.1 / 7.8 / 9 2.1 / 7.2 / 9 2.1 / 6.9 / 9
IPX1
EcoHeat 406 EcoHeat 408 EcoHeat 410 EcoHeat 412
kg 2.1 2.1 2.1 2.5
MPa 3.1 (31 bar)
kg 267 270 272 279
mm 595 x 1904 x 672
mm 1925
dB(A) 44,9 43,9 46,0 47,2
EcoHeat 406 EcoHeat 408 EcoHeat 410 EcoHeat 412
l 2.3 2.9 2.9 3.4
°C -5/20
bar 0.2/3.0
3
l/s 0.27 0.31 0.38 0.44
l/s 0.37 0.51 0.64 0.73
TOP-S 25/7 TOP-S 25/10
EcoHeat 406 EcoHeat 408 EcoHeat 410 EcoHeat 412
l 223
bar 2.5
°C 110
l/s
l/s 0.14 0.20 0.24 0.28
EcoHeat 406 EcoHeat 408 EcoHeat 410 EcoHeat 412
@ -5/45 kW 4.68 6.84 8.33 9.88
COP 1) @ -5/45 - 3.09 3.34 3.30 3.30
@ 0/35 | 0/45
0/55
kW 5.90 | 5.48
5.17
8.19 | 7.87
7.55
9.97 | 9.55
9.28
11.75 | 11.24
10.97
COP 1) @ 0/35 | 0/45
0/55
- 4.57 | 3.54
2.76
4.58 | 3.64
2.99
4.60 | 3.68
2.98
4.60 | 3.66
2.96
@ 5/35 | 5/45
5/55
kW 6.81 | 6.49
6.08
9.44 | 9.05
8.65
11.42 | 10.99
10.58
13.53 | 12.95
12.57
COP 1) @ 5/35 | 5/45
5/55
- 5.24 | 4.15
3.18
5.02 | 4.04
3.30
5.20 | 4.16
3.28
5.11 | 4.11
3.35
A 4.5 5.2 6.8 8.2
EcoHeat 406 EcoHeat 408 EcoHeat 410 EcoHeat 412
l 5.7
bar 10
°C 110
Electrical Data
Electrical data
Rated power
Immersion heater (steps of 0,3 kW)
Max immersion heater output
@ fuse size 16 / 20 / 25 A
IP class
Other data
Refrigerant quantity (R407C)
Interrupt value switch HP
Weight
Width x Height x Depth
Minimum ceiling height
Noise level
Brine system
Water volume (V)
Brine system min./max. temp. (TS)
Brine system min./max. pressure (PS)
Brine pump speed adjustment
Brine system min. flow, ∆t = 5 °K
Brine system nominal flow, ∆t = 3 °K
Brine system pump
Pump capacity See diagram in the Pipe installation chapter
Heating system
Water volume. thermal store (V)
Max. operating pressure. thermal store (PS)
Max. temperature. thermal store (TS)
Heating system. min. flow Unlimited
Heating system. nominal flow 2)
Pressure drop for mixing valve heating See pressure drop diagram in the Pipe installation chapter
2) ∆t = 10 K and 0/35 °C heat pump operation
Operational data for heat pump
Output from compressor 1)
Output from compressor 1)
Output from compressor 1)
Max. operating current Compressor
1) EN14511:2007, incl. heating medium pump and brine pump
Hot water system
Water volume, hot water coil (V)
Max. operating pressure, hot water coil (PS)
Max. temperature, hot water coil (TS)

12
CTC EcoHeat 400
General Information
1.2 Single phase 230V 1N~
EcoHeat 406 EcoHeat 408 EcoHeat 410 EcoHeat 412
230V 1N~
kW 11.7 12.6 13.4 14.1
kW 0 - 9.0
A 30 / 38 / 54 34 / 43 / 58 37 / 46 / 61 41 / 49 / 65
IPX1
EcoHeat 406 EcoHeat 408 EcoHeat 410 EcoHeat 412
kg 2.1
MPa 3.1 (31 bar)
kg 255 258 260 267
mm 600 x 1850 x 642
mm 1925
dB(A) 44,9 43,9 46,0 47,2
EcoHeat 406 EcoHeat 408 EcoHeat 410 EcoHeat 412
l 2.3 2.9 2.9 3.4
°C -5/20
bar 0.2/3.0
3
l/s 0.27 0.31 0.38 0.44
l/s 0.37 0.51 0.64 0.73
TOP-S 25/7 TOP-S 25/10
EcoHeat 406 EcoHeat 408 EcoHeat 410 EcoHeat 412
@ -5/45 kW 4.68 6.84 8.33 9.88
COP 1) @ -5/45 - 3.09 3.34 3.30 3.30
@ 0/35 | 0/45
0/55
kW 5.90 | 5.48
5.17
8.19 | 7.87
7.55
9.97 | 9.55
9.28
11.75 | 11.24
10.97
COP 1) @ 0/35 | 0/45
0/55
- 4.57 | 3.54
2.76
4.58 | 3.64
2.99
4.60 | 3.68
2.98
4.60 | 3.66
2.96
@ 5/35 | 5/45
5/55
kW 6.81 | 6.49
6.08
9.44 | 9.05
8.65
11.42 | 10.99
10.58
13.53 | 12.95
12.57
COP 1) @ 5/35 | 5/45
5/55
- 5.24 | 4.15
3.18
5.02 | 4.04
3.30
5.20 | 4.16
3.28
5.11 | 4.11
3.35
A 13.0 18.5 20.6 25.0
EcoHeat 406 EcoHeat 408 EcoHeat 410 EcoHeat 412
l 5.7
bar 10
°C 110
EcoHeat 406 EcoHeat 408 EcoHeat 410 EcoHeat 412
l 223
bar 2.5
°C 110
l/s
l/s 0.14 0.20 0.24 0.28
Electrical Data
Electrical data
Rated power
Immersion heater (steps of 0,3 kW)
Min. main fuse
@ 3.5 / 5.5 / 9.0 kW Immersion heater
IP class
Other data
Refrigerant quantity (R407C)
Cut-out value pressostat HP
Weight
Width x Height x Depth
Minimum ceiling height
Noise level
Brine system
Water volume (V)
Brine system min./max. temp. (TS)
Brine system min./max. pressure (PS)
Brine pump speed adjustment
Brine system min. flow, ∆t = 5 °K
Brine system nominal flow, ∆t = 3 °K
Brine system pump
Pump capacity See diagram in the Pipe installation chapter
Heating system
Water volume. thermal store (V)
Max. operating pressure. thermal store (PS)
Max. temperature. thermal store (TS)
Heating system. min. flow Unlimited
Heating system. nominal flow3) ∆t = 10 K
Pressure drop for mixing valve heating See pressure drop diagram in the Pipe installation chapter
3) At ∆t = 10 K and 0/35 °C heat pump operation
Operational data for heat pump
Output from compressor 1)
Output from compressor 1)
Output from compressor 1)
Max. operating current Compressor
1) EN14511:2007, incl. heating medium pump and brine pump
Hot water system
Water volume, hot water coil (V)
Max. operating pressure, hot water coil (PS)
Max. temperature, hot water coil (TS)

13
CTC EcoHeat 400
General Information
1.3 Measurements and connections
1. Expansion connection 22 compression
2. Connection waste pipe 3/4"BSP
3. Cold water connection Ø22
4. Hot water Ø22
5. Radiator primary flow 22 compression
6. Radiator return Ø22
7. From ground loop Ø28 (right, left and back)
8. To ground loop Ø28 (right, left and back)
9. Lifting sleeve 3/4"BSP
10. Connection for external systems (pipe penetration)
1904 1748
618
672
192 83
595
190
114
69
55
344
423
221
133
7, 8
7
8
1904 1748
618
672
192 83
595
190
114
69
55
344
423
221
133
194
347
426
87 134
55
114
595
69
Ändr. meddel. Datum Nr Ändring Ändr. av Kontr. av
E
art. nr
Utgåva
Ämnes nr
Ersätter
art. nr
Ersättes av
Grupp
Produkt
Reg. nr
Benämning
Tol.system
Kontr.
Normgr.
Skala
Ritad
Material
Datum
Sign.
Distr till/Antal
Ytjämnhet RA
Godk. prod
Om ej annat angives gäller ovanstående
Denna ritning är Enertech AB's egendom. Den får ej användas till skada för företagets intressen.
Diese Zeichnung ist das Eigentum der Enertech AB und darf nicht zum Scha- den dieser Gesellschaft verwendet werden.
This drawing is the property of Enertech AB and is not to be used against the interest of this com- pany
1:20
blad 1/1
2
3
4
1
9
56
10

14
CTC EcoHeat 400
General Information
2. CTC EcoHeat 400 design
Mains Water Connections
Here you connect the
property's mains water
connections. The cold water
is directed down to the lower
part of the coil.
Finned Coil for Hot Water
EcoHeat is equipped with
a well-dimensioned finned
coil made of copper. A low
temperature can be maintained
without the risk of legionella
bacteria.
Bivalent Mixing Valve
The automated mixing valve
ensures that an even heat is
continuously supplied to the
radiator system. The valve has four
ports and first collects the radiator
water from the lower part, heated
by the heat pump
Upper part
In the upper part of the coil the
water is heated to the desired
temperature.
Electric heater
A built-in electric heater acts
as an auxiliary heater if the
heat pump's output is not
sufficient.
Lower part
In the lower part of the coil
the hot water is pre-heated by
the water heated by the heat
pump. The major section of the
coil is located in this part.
Heat medium pump
The adjustable-speed heat
medium pump transports the
cold water from the heating
system to the condenser where
the energy from the ground
loop is drawn up and directed
towards the heat pump.
Diverting valve
The heated water from the
condenser heats up either
the upper or lower part of
the tank.
Insulation
The heat pump's tank is insulated
with die-cast polyurethane foam for
minimal heat loss.
Condenser/Evaporator
In the condenser the refrigerant
releases its energy into the heating
system. The energy is used to heat
the hot water and the house.
In the evaporator the heat drawn
from the heat source (lake
or ground) is released to the
refrigerant, which is evaporated
to be compressed later in the
compressor.
Sound insulation
The cooling module is fitted with
sound insulation as the compressor
emits a certain amount of noise
and vibrations.
Brine pump
The brine pump transports the
freeze resistant water in the ground
loop (cold side). The cold side is a
closed system.
Expansion valve
The cooling system has a high pressure side (after the
compressor) and a low pressure side (after the expansion
valve). The expansion valve has the function of lowering the
pressure on the refrigerant. This makes the temperature drop
so that new energy can be drawn up into the evaporator.
The expansion valve functions as a variable throttle valve
depending on the current conditions in the cooling system.
Compressor
The compressor is the “heart” of the cooling system,
pumping the refrigerant around in an airtight closed
system. The evaporated refrigerant is compressed in
the compressor. This enables the temperature to rise
to a usable level. The energy is released to the heating
system in the condenser.
The picture below shows the fundamental construction of the heat pump.
The energy in the lake or ground is drawn up by the cooling system. The
compressor then increases the temperature to a usable level. Afterwards it
releases the energy for the heating system and hot water.

15
CTC EcoHeat 400
General Information
3. Control system
3.1 Some control data
EcoHeat automatically adjusts the water temperature to the primary flow's
current heating requirement. This is completely normal and is monitored by the
control system, which continuously ensures that you are provided with optimum
function and economy.
• Compressor: 5°C between start and stop. The compressor stops at the
setpoint and starts at 5°C lower.
• The heat pump's setpoint is 5°C higher than the setpoint for the primary
flow down to a heat pump temperature of 35°C.
• Changing the room temperature leads directly to a change in the primary
flow's setpoint.
• The discharge is monitored and the compressor stopped at 120°C.
• Incoming brine temperature: alarm triggered at -5°C.
3.2 Factory values
The product is delivered with set factory values which are suitable for a standard
house with a standard radiator system. These values can be easily changed
as required. You should check in particular your “home parameters”. Ask your
installer to help you determine the correct values.
The following default values are set by the factory:
Night reduction: Off (constant day temperature)
Compressor: Blocked
Temp. electrical unit: 40°C (low value recommended)
Room sensor: No
Electric boiler max. kW: 5.5
Additional heat delay (mixing valve): 180 minutes
Main fuse: 20 A
Extra DHW: No (if “Yes” is selected, 120 min. time is
activated, not the scheduled time)
House parameters: Inclination = 50 Adjustment = 0
3.3 My settings
(use a pencil so that you can make changes)
Indoor°C __________________
Boiler upper max kW __________________
Boiler°C __________________
Delay mix valve min __________________
Main fuse A __________________
Inclination __________________
Adjustment __________________
Max primary flow°C __________________
Min primary flow°C __________________
Night reduction:
Room temp reduced°C __________________
Night reduction:
Prim reduced°C __________________
!When the product
is reset to factory
settings, the parameter
Input voltage is reset to
3x400V by default. For
1x230V please re-set
the correct value under
Installer/Settings/
Electric heater/.
1 2
1 2
Room temp.
Heating circuit 1
Night reduction Holiday
Room temp.
Heating circuit 1 (50)
Night reduction Holiday
Heat pump
Compressor Permitted
Brine pump on 10 days 0
Tariff HP Off
Electric heater
Boiler upper°C 40
Boiler upper add°C 70
Boiler upper extra DHW°C 60
Boiler upper max kW 5.8
Delay mixing valve 180
Main fuse A 25
Input voltage 3x400 V
Tariff EL Off
Upper tank
Stop temp HP°C 60
Start/stop diff upper ºC 5
Max time upper tank 20
Max time lower tank 40
Time lower after DHW 10
Communication
MB address 1
Baud rate 9600
Parity even
Stop bit 1
Save settings
Save settings?
Def Heat pump
Flow/level switch None
Test Heating circuit
Mixing valve1 Open
Rad pump1 On
Mixing valve2 Off
Rad pump2 Off
LED room sensor On
Test valves
Test Elec.heater
3-way valve Down
Electric heater L1 Off
Electric heater L2 Low
Electric heater L3 High
Test Heat pump
HP Compr. Off
HP Brine p Off
HP Charge p 0
Alarm log HP
Latest alarm: Time HP (b) LP (b) SH (K) I(A)
Low brine flow 07:20 6/3 8.8 3.3 15.9 3.9
Stored alarms:
Wrong phase order 10:30 1/3 27.9 8.6 -227 50.0
Comm. error motor protect 09:01 1/3 27.9 3.6 42.2
0.0
Factory settings coded
Code 0 0 0 0
Upper tank
Lower tank
Compressor operation
Expansion valve
Log compressor stop

16
CTC EcoHeat 400
General Information
Svenska Nederlands English Deutsch
Suomi Française Dansk Norsk
12 ºC
21,5 ºC
22,3 ºC
42 ºC
34 ºC
-1 ºC
2 ºC
1 2
1 2
22,2 ºC 21,2 ºC 58 ºC -5 ºC
1 2
1 2
1 2
06 - 09 18 - 21
07 - 09 20 - 23
06 - 09 10 - 21
06 - -- -- - 21
06 - -- -- - 21
10 - 12 20 - 23
10 - 12 20 - 23
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
06-09 18-21
07-09 00-00
06-09 00-00
06-09 00-00
06-09 00-00
10-12 00-00
10-12 00-00
Room temp. DHW Operation Installer
CTC EcoHeat Monday 09:35
Night reduction Holiday
Heating circuit 2 (50)
Heating circuit 1
Room temp.
Start menu
Room temperature settings
Selecting DHW comfort
Heating system data
Installer settings menu
Extra
Hot water 0.0 hours
On
Temperature
Normal
Weekly schedule
DHW
Weekly program Day by day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Weekly program DHW
Operation data system
Status HP upper tank
Tank upper°C 49 (60)
Tank lower°C 42 (45)
Primary flow°C 42 (43)
Return flow°C 34
Radiator pump On
Mixing valve Open
Delay mixing valve 180
Electric power kW 0.0 0.0 0.0
Current L1/L2/L3 0.0 0.0 0.0
Operation data EcoHeat
Stored oper data
Compressor
Heating circuit 2
Operation data heating
Installer
Time/Language Settings Define system Service
Software display PCB: 20120205
Software HP PCB: 20120125
Installer
Installer
Time 21:34
Date 2012-02-05
Settings Heating circuit
Heating circuit 1
Heating circuit 2
Heat pump
Electric heater
Upper tank
Remote control NR
Communication
Save settings
Load settings
Load factory settings
Max primary flow°C 55
Min primary flow°C Off
Heating off, out°C 18
Heating off, time 120
Inclination°C 50
Adjustment°C 0
Room temp reduced°C -2
or
Primary flow reduced°C -3
Anti Water Hammer Yes
HP max DHW Yes
Define system Def radiator system
Heating circuit 1
Heating circuit 2
Heat pump
Room sensor Yes
Service Function test
Function test
Alarm log
Factory settings coded
Quick start compressor.
Software update, USB
Write log to USB
Control current sensors
Re-installation
Heating circuit
Heat pump
Valves
Electric heater
Total operation time h: 14196
Max primary flow°C: 51
Consumtion kWh 20
Compressor:
Operation time /24 h:m 00:00
Stored oper data
Compressor
Compressor On
Charge pump On 47%
Brine pump On
HP in/out°C 35.5 / 42.3
Current L1 4.0
Night reduction heat circ.
Weekly program Day by day NR
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Night reduction heat circ.
Weekly program Block NR
Decrease Sunday 22:00
Increase Friday 14:00
Decrease -------- 00:00
Increase -------- 00:00
Holiday
Holiday period 3days
Out Room1 Prim1 Return Room2 Prim2
Room temp.
Settings for raising or lowering the temperature
indoors and also for scheduling temperature
changes.
DHW
Settings for DHW production.
Operation
This displays current operational data for both
your heating system and heat pump. Historical
operational data is also available.
Installer
This option is used by the installer to configure
the settings and servicing for your heating
system.
1 2
Room temp. Radiator system 1
If radiator system 1 is defined, the current room
temperature is displayed here.
1 2
Room temp. Radiator system 2
If radiator system 2 is defined, the current room
temperature is displayed here.
Tank temperature
This displays the current temperature in the
upper part of the tank.
Outdoor temperature
This displays the current outdoor temperature.
Home
The Home button takes you back to the Start
menu.
Return
The Return button takes you back to the
previous level.
OK
The OK button is used to mark and confirm text
and options in the menus.
Night reduction
This schedules a temperature reduction at night
if selected.
Holiday
You can use this to reduce the room
temperature permanently, e.g. during holidays
when the house is unoccupied.
Weekly program
This reduces the temperature for a few days, for
instance, if you commute every week.
Stored operation data
This displays historical data.
Time/Language
This is used to set the date, time and the
language you want the menu to be displayed in.
Settings
The settings for operating the heat pump and
system are usually configured by the installer.
Define system
The heating system's structure can be adjusted/
modified using this option.
Service
Advanced settings are configured by the
appropriate technical person.
4. Detail Description Menus
All the settings can be configured directly on screen using
the well-structured control panel. The large icons operate
as buttons on the touch display.
Operational and temperature information is also displayed
here. You can easily enter the different menus to find
operational information or to change any settings.
4.1 Start menu
This menu is the system's start menu. This provides an
overview of the current operational data.
The system returns to this menu if no buttons are pressed
within a 10-minute period.
All other menus can be accessed from this menu.

17
CTC EcoHeat 400
General Information
4.2 Room temp.
You set the room temperature you want to achieve via
this menu. Use the plus and minus buttons to set the
temperature you want, which gives you the “setpoint”
temperature, in brackets. You can see the current value
next to the brackets.
If two radiator systems are installed, the values for both are
displayed.
If you want to schedule a temperature reduction, you can
continue to the Night reduction or Holiday submenus.
You can select Room sensor No under the Installer/Define
system/Radiator system menu. This can be done if the
room sensor is poorly positioned, if the floor heating system
has a separate room sensor or if you use a fire place
or open stove. The alarm LED on the room sensor still
functions as normal.
If you use the fire or open stove only occasionally, the
firing process can affect the room sensor and reduce the
temperature supplied to the radiators. It can then get cold
in the rooms in other parts of the house. The room sensor
can temporarily be deselected during the firing process.
EcoHeat then provides heating to the radiators using the
set heating curve. The radiator thermostats reduce the
heating supplied to the section of the house where a fire is
burning.
4.2.1 Setting Room temp without a
sensor
If a room sensor has not been installed you use this option
to adjust the room temperature by trimming the flow
temperature. If the extent of the trimming does not alter
the room temperature enough, then you have to adjust the
default setting under Installer/Settings/Radiator system.
Change the value in small steps every time (approx. 2-3
steps) and wait for the result (about a day) as the system is
slow to respond.
Several adjustments may be necessary at different outdoor
temperatures, but you will gradually achieve the right
setting for the property.
4.2.2 Outdoor Sensor/Room Sensor
Faults
If a fault occurs with an outdoor sensor, an outdoor
temperature of -5°C is simulated so that the house does
not get cold. The product's alarm is triggered.
If a fault occurs with a room sensor, EcoHeat automatically
switches to operating according to the set curve. The
product's alarm is triggered.
!The radiator thermostatic valves
must be held fully open when the
system is tuned.
The example above shows how it operates without a room
sensor. The value in brackets is a % rate. You can finely adjust the
system's default setting using the plus and minus buttons.
The example above shows how it operates with two radiator
systems. Radiator system 1 with a room sensor and radiator
system 2 without one.
Svenska Nederlands English Deutsch
Suomi Française Dansk Norsk
12 ºC
21,5 ºC
22,3 ºC
42 ºC
34 ºC
-1 ºC
2 ºC
1 2
1 2
22,2 ºC 21,2 ºC 58 ºC -5 ºC
1 2
1 2
1 2
06 - 09 18 - 21
07 - 09 20 - 23
06 - 09 10 - 21
06 - -- -- - 21
06 - -- -- - 21
10 - 12 20 - 23
10 - 12 20 - 23
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
06-09 18-21
07-09 00-00
06-09 00-00
06-09 00-00
06-09 00-00
10-12 00-00
10-12 00-00
Room temp. DHW Operation Installer
CTC EcoHeat Monday 09:35
Night reduction Holiday
Heating circuit 2 (50)
Heating circuit 1
Room temp.
Start menu
Room temperature settings
Selecting DHW comfort
Heating system data
Installer settings menu
Extra
Hot water 0.0 hours
On
Temperature
Normal
Weekly schedule
DHW
Weekly program Day by day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Weekly program DHW
Operation data system
Status HP upper tank
Tank upper°C 49 (60)
Tank lower°C 42 (45)
Primary flow°C 42 (43)
Return flow°C 34
Radiator pump On
Mixing valve Open
Delay mixing valve 180
Electric power kW 0.0 0.0 0.0
Current L1/L2/L3 0.0 0.0 0.0
Operation data EcoHeat
Stored oper data
Compressor
Heating circuit 2
Operation data heating
Installer
Time/Language Settings Define system Service
Software display PCB: 20120205
Software HP PCB: 20120125
Installer
Installer
Time 21:34
Date 2012-02-05
Settings Heating circuit
Heating circuit 1
Heating circuit 2
Heat pump
Electric heater
Upper tank
Remote control NR
Communication
Save settings
Load settings
Load factory settings
Max primary flow°C 55
Min primary flow°C Off
Heating off, out°C 18
Heating off, time 120
Inclination°C 50
Adjustment°C 0
Room temp reduced°C -2
or
Primary flow reduced°C -3
Anti Water Hammer Yes
HP max DHW Yes
Define system Def radiator system
Heating circuit 1
Heating circuit 2
Heat pump
Room sensor Yes
Service Function test
Function test
Alarm log
Factory settings coded
Quick start compressor.
Software update, USB
Write log to USB
Control current sensors
Re-installation
Heating circuit
Heat pump
Valves
Electric heater
Total operation time h: 14196
Max primary flow°C: 51
Consumtion kWh 20
Compressor:
Operation time /24 h:m 00:00
Stored oper data
Compressor
Compressor On
Charge pump On 47%
Brine pump On
HP in/out°C 35.5 / 42.3
Current L1 4.0
Night reduction heat circ.
Weekly program Day by day NR
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Night reduction heat circ.
Weekly program Block NR
Decrease Sunday 22:00
Increase Friday 14:00
Decrease -------- 00:00
Increase -------- 00:00
Holiday
Holiday period 3days
Out Room1 Prim1 Return Room2 Prim2
1 2
1 2
Room temp.
Heating circuit 1
Night reduction Holiday
Room temp.
Heating circuit 1 (50)
Night reduction Holiday
Heat pump
Compressor Permitted
Brine pump on 10 days 0
Tariff HP Off
Electric heater
Boiler upper°C 40
Boiler upper add°C 70
Boiler upper extra DHW°C 60
Boiler upper max kW 5.8
Delay mixing valve 180
Main fuse A 25
Input voltage 3x400 V
Tariff EL Off
Upper tank
Stop temp HP°C 60
Start/stop diff upper ºC 5
Max time upper tank 20
Max time lower tank 40
Time lower after DHW 10
Communication
MB address 1
Baud rate 9600
Parity even
Stop bit 1
Save settings
Save settings?
Def Heat pump
Flow/level switch None
Test Heating circuit
Mixing valve1 Open
Rad pump1 On
Mixing valve2 Off
Rad pump2 Off
LED room sensor On
Test valves
Test Elec.heater
3-way valve Down
Electric heater L1 Off
Electric heater L2 Low
Electric heater L3 High
Test Heat pump
HP Compr. Off
HP Brine p Off
HP Charge p 0
Alarm log HP
Latest alarm: Time HP (b) LP (b) SH (K) I(A)
Low brine flow 07:20 6/3 8.8 3.3 15.9 3.9
Stored alarms:
Wrong phase order 10:30 1/3 27.9 8.6 -227 50.0
Comm. error motor protect 09:01 1/3 27.9 3.6 42.2
0.0
Factory settings coded
Code 0 0 0 0
Upper tank
Lower tank
Compressor operation
Expansion valve
Log compressor stop
1 2
1 2
Room temp.
Heating circuit 1
Night reduction Holiday
Room temp.
Heating circuit 1 (50)
Night reduction Holiday
Heat pump
Compressor Permitted
Brine pump on 10 days 0
Tariff HP Off
Electric heater
Boiler upper°C 40
Boiler upper add°C 70
Boiler upper extra DHW°C 60
Boiler upper max kW 5.8
Delay mixing valve 180
Main fuse A 25
Input voltage 3x400 V
Tariff EL Off
Upper tank
Stop temp HP°C 60
Start/stop diff upper ºC 5
Max time upper tank 20
Max time lower tank 40
Time lower after DHW 10
Communication
MB address 1
Baud rate 9600
Parity even
Stop bit 1
Save settings
Save settings?
Def Heat pump
Flow/level switch None
Test Heating circuit
Mixing valve1 Open
Rad pump1 On
Mixing valve2 Off
Rad pump2 Off
LED room sensor On
Test valves
Test Elec.heater
3-way valve Down
Electric heater L1 Off
Electric heater L2 Low
Electric heater L3 High
Test Heat pump
HP Compr. Off
HP Brine p Off
HP Charge p 0
Alarm log HP
Latest alarm: Time HP (b) LP (b) SH (K) I(A)
Low brine flow 07:20 6/3 8.8 3.3 15.9 3.9
Stored alarms:
Wrong phase order 10:30 1/3 27.9 8.6 -227 50.0
Comm. error motor protect 09:01 1/3 27.9 3.6 42.2
0.0
Factory settings coded
Code 0 0 0 0
Upper tank
Lower tank
Compressor operation
Expansion valve
Log compressor stop
The example above shows that the room temperature is 22.4 °C,
but the desired value (setpoint) is 23.5 °C.

18
CTC EcoHeat 400
General Information
4.2.3 Night reduction temperature
You use this menu to activate and set a reduction in the
temperature at night. A night reduction means that you
reduce the temperature indoors during scheduled periods,
for example, at night or when you are working.
The value by which the temperature is reduced - Room
temp. red – is set under Installer/Settings/Radiator system/
Factory value: -2°C.
The options are Off, Day by day or Block. If you select Off,
no reduction is made at all.
Day by day menu
You use this menu to schedule a reduction on the days of
the week. This schedule is repeated every week.
The time set is when you want the temperature to be
normal. The night reduction function is activated during the
rest of the time.
Block
This menu allows you to set a reduction for a few days
during the week, for example, if you are working elsewhere
on weekdays and at home at weekends.
!The value by which the temperature is reduced - Room temp. red – is set under
Installer/Settings/Radiator system/
Factory value: -2°C.
!Reducing a heat pump's temperature
at night is a comfort setting which
generally does not reduce energy
consumption.
4.2.4 Holiday
You use this option to set the number of days that you
want the set night reduction temperature to be constantly
reduced. For example, if you want to go on holiday.
You can apply this setting for up to 250 days.
The period starts from the time you set this parameter for.
On Monday morning at 6 am the temperature is increased
to normal; at 9 am it is reduced to the set night reduction
temperature. At 6 pm the temperature is increased again until
9 pm when the night reduction function reduces it again.
On Sunday at 10 pm the temperature is reduced with the value
set for Room temp. being reduced. On Friday at 2 pm the
temperature is increased to the set value again.
Svenska Nederlands English Deutsch
Suomi Française Dansk Norsk
12 ºC
21,5 ºC
22,3 ºC
42 ºC
34 ºC
-1 ºC
2 ºC
1 2
1 2
22,2 ºC 21,2 ºC 58 ºC -5 ºC
1 2
1 2
1 2
06 - 09 18 - 21
07 - 09 20 - 23
06 - 09 10 - 21
06 - -- -- - 21
06 - -- -- - 21
10 - 12 20 - 23
10 - 12 20 - 23
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
06-09 18-21
07-09 00-00
06-09 00-00
06-09 00-00
06-09 00-00
10-12 00-00
10-12 00-00
Room temp. DHW Operation Installer
CTC EcoHeat Monday 09:35
Night reduction Holiday
Heating circuit 2 (50)
Heating circuit 1
Room temp.
Start menu
Room temperature settings
Selecting DHW comfort
Heating system data
Installer settings menu
Extra
Hot water 0.0 hours
On
Temperature
Normal
Weekly schedule
DHW
Weekly program Day by day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Weekly program DHW
Operation data system
Status HP upper tank
Tank upper°C 49 (60)
Tank lower°C 42 (45)
Primary flow°C 42 (43)
Return flow°C 34
Radiator pump On
Mixing valve Open
Delay mixing valve 180
Electric power kW 0.0 0.0 0.0
Current L1/L2/L3 0.0 0.0 0.0
Operation data EcoHeat
Stored oper data
Compressor
Heating circuit 2
Operation data heating
Installer
Time/Language Settings Define system Service
Software display PCB: 20120205
Software HP PCB: 20120125
Installer
Installer
Time 21:34
Date 2012-02-05
Settings Heating circuit
Heating circuit 1
Heating circuit 2
Heat pump
Electric heater
Upper tank
Remote control NR
Communication
Save settings
Load settings
Load factory settings
Max primary flow°C 55
Min primary flow°C Off
Heating off, out°C 18
Heating off, time 120
Inclination°C 50
Adjustment°C 0
Room temp reduced°C -2
or
Primary flow reduced°C -3
Anti Water Hammer Yes
HP max DHW Yes
Define system Def radiator system
Heating circuit 1
Heating circuit 2
Heat pump
Room sensor Yes
Service Function test
Function test
Alarm log
Factory settings coded
Quick start compressor.
Software update, USB
Write log to USB
Control current sensors
Re-installation
Heating circuit
Heat pump
Valves
Electric heater
Total operation time h: 14196
Max primary flow°C: 51
Consumtion kWh 20
Compressor:
Operation time /24 h:m 00:00
Stored oper data
Compressor
Compressor On
Charge pump On 47%
Brine pump On
HP in/out°C 35.5 / 42.3
Current L1 4.0
Night reduction heat circ.
Weekly program Day by day NR
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Night reduction heat circ.
Weekly program Block NR
Decrease Sunday 22:00
Increase Friday 14:00
Decrease -------- 00:00
Increase -------- 00:00
Holiday
Holiday period 3days
Out Room1 Prim1 Return Room2 Prim2
Svenska Nederlands English Deutsch
Suomi Française Dansk Norsk
12 ºC
21,5 ºC
22,3 ºC
42 ºC
34 ºC
-1 ºC
2 ºC
1 2
1 2
22,2 ºC 21,2 ºC 58 ºC -5 ºC
1 2
1 2
1 2
06 - 09 18 - 21
07 - 09 20 - 23
06 - 09 10 - 21
06 - -- -- - 21
06 - -- -- - 21
10 - 12 20 - 23
10 - 12 20 - 23
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
06-09 18-21
07-09 00-00
06-09 00-00
06-09 00-00
06-09 00-00
10-12 00-00
10-12 00-00
Room temp. DHW Operation Installer
CTC EcoHeat Monday 09:35
Night reduction Holiday
Heating circuit 2 (50)
Heating circuit 1
Room temp.
Start menu
Room temperature settings
Selecting DHW comfort
Heating system data
Installer settings menu
Extra
Hot water 0.0 hours
On
Temperature
Normal
Weekly schedule
DHW
Weekly program Day by day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Weekly program DHW
Operation data system
Status HP upper tank
Tank upper°C 49 (60)
Tank lower°C 42 (45)
Primary flow°C 42 (43)
Return flow°C 34
Radiator pump On
Mixing valve Open
Delay mixing valve 180
Electric power kW 0.0 0.0 0.0
Current L1/L2/L3 0.0 0.0 0.0
Operation data EcoHeat
Stored oper data
Compressor
Heating circuit 2
Operation data heating
Installer
Time/Language Settings Define system Service
Software display PCB: 20120205
Software HP PCB: 20120125
Installer
Installer
Time 21:34
Date 2012-02-05
Settings Heating circuit
Heating circuit 1
Heating circuit 2
Heat pump
Electric heater
Upper tank
Remote control NR
Communication
Save settings
Load settings
Load factory settings
Max primary flow°C 55
Min primary flow°C Off
Heating off, out°C 18
Heating off, time 120
Inclination°C 50
Adjustment°C 0
Room temp reduced°C -2
or
Primary flow reduced°C -3
Anti Water Hammer Yes
HP max DHW Yes
Define system Def radiator system
Heating circuit 1
Heating circuit 2
Heat pump
Room sensor Yes
Service Function test
Function test
Alarm log
Factory settings coded
Quick start compressor.
Software update, USB
Write log to USB
Control current sensors
Re-installation
Heating circuit
Heat pump
Valves
Electric heater
Total operation time h: 14196
Max primary flow°C: 51
Consumtion kWh 20
Compressor:
Operation time /24 h:m 00:00
Stored oper data
Compressor
Compressor On
Charge pump On 47%
Brine pump On
HP in/out°C 35.5 / 42.3
Current L1 4.0
Night reduction heat circ.
Weekly program Day by day NR
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Night reduction heat circ.
Weekly program Block NR
Decrease Sunday 22:00
Increase Friday 14:00
Decrease -------- 00:00
Increase -------- 00:00
Holiday
Holiday period 3days
Out Room1 Prim1 Return Room2 Prim2
Svenska Nederlands English Deutsch
Suomi Française Dansk Norsk
12 ºC
21,5 ºC
22,3 ºC
42 ºC
34 ºC
-1 ºC
2 ºC
1 2
1 2
22,2 ºC 21,2 ºC 58 ºC -5 ºC
1 2
1 2
1 2
06 - 09 18 - 21
07 - 09 20 - 23
06 - 09 10 - 21
06 - -- -- - 21
06 - -- -- - 21
10 - 12 20 - 23
10 - 12 20 - 23
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
06-09 18-21
07-09 00-00
06-09 00-00
06-09 00-00
06-09 00-00
10-12 00-00
10-12 00-00
Room temp. DHW Operation Installer
CTC EcoHeat Monday 09:35
Night reduction Holiday
Heating circuit 2 (50)
Heating circuit 1
Room temp.
Start menu
Room temperature settings
Selecting DHW comfort
Heating system data
Installer settings menu
Extra
Hot water 0.0 hours
On
Temperature
Normal
Weekly schedule
DHW
Weekly program Day by day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Weekly program DHW
Operation data system
Status HP upper tank
Tank upper°C 49 (60)
Tank lower°C 42 (45)
Primary flow°C 42 (43)
Return flow°C 34
Radiator pump On
Mixing valve Open
Delay mixing valve 180
Electric power kW 0.0 0.0 0.0
Current L1/L2/L3 0.0 0.0 0.0
Operation data EcoHeat
Stored oper data
Compressor
Heating circuit 2
Operation data heating
Installer
Time/Language Settings Define system Service
Software display PCB: 20120205
Software HP PCB: 20120125
Installer
Installer
Time 21:34
Date 2012-02-05
Settings Heating circuit
Heating circuit 1
Heating circuit 2
Heat pump
Electric heater
Upper tank
Remote control NR
Communication
Save settings
Load settings
Load factory settings
Max primary flow°C 55
Min primary flow°C Off
Heating off, out°C 18
Heating off, time 120
Inclination°C 50
Adjustment°C 0
Room temp reduced°C -2
or
Primary flow reduced°C -3
Anti Water Hammer Yes
HP max DHW Yes
Define system Def radiator system
Heating circuit 1
Heating circuit 2
Heat pump
Room sensor Yes
Service Function test
Function test
Alarm log
Factory settings coded
Quick start compressor.
Software update, USB
Write log to USB
Control current sensors
Re-installation
Heating circuit
Heat pump
Valves
Electric heater
Total operation time h: 14196
Max primary flow°C: 51
Consumtion kWh 20
Compressor:
Operation time /24 h:m 00:00
Stored oper data
Compressor
Compressor On
Charge pump On 47%
Brine pump On
HP in/out°C 35.5 / 42.3
Current L1 4.0
Night reduction heat circ.
Weekly program Day by day NR
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Night reduction heat circ.
Weekly program Block NR
Decrease Sunday 22:00
Increase Friday 14:00
Decrease -------- 00:00
Increase -------- 00:00
Holiday
Holiday period 3days
Out Room1 Prim1 Return Room2 Prim2

19
CTC EcoHeat 400
General Information
!Tip: You should start with Economic
mode and if you find that you are not
getting enough hot water, increase
to Normal etc.
!Tip: Set the time approx. 1 hour earlier
than you need the hot water as it
take some time to heat up the water.
4.3 DHW
You use this to set the DHW comfort level you want and
extra DHW.
Temperature
You set the values for this option which apply to the heat
pump's normal operation. There are three modes:
Economic - If you have a small DHW requirement.
Normal - Normal DHW requirement.
Comfort - Large DHW requirement.
Extra DHW (On/Off)
You select this option if you want to activate the Extra
DHW function. When this function is activated, the heat
pump starts producing extra hot water immediately. You
also have the option to schedule DHW production for
certain times using the Weekly program function, which is
recommended.
The example above shows that Extra DHW is set to On for 3.5
hours.
4.3.1 Weekly program DHW
You can use this menu to schedule periods during
weekdays when you want extra hot water. This schedule is
repeated every week. The screen shows the factory values,
which can be changed. If you want an additional period
some day, e.g. in the evening, you can program recurring
times.
The options are Off or Day by day.
Off - No scheduled DHW production.
Day by day - A weekly schedule which you program
yourself. This is used if you always know when you
repeatedly need extra hot water, for instance, during the
morning and evening.
On Monday morning at 6 am the system starts producing more
hot water until 9 am when the temperature returns to normal
again. There is a further increase between 6 pm and 9 pm.
Svenska Nederlands English Deutsch
Suomi Française Dansk Norsk
12 ºC
21,5 ºC
22,3 ºC
42 ºC
34 ºC
-1 ºC
2 ºC
1 2
1 2
22,2 ºC 21,2 ºC 58 ºC -5 ºC
1 2
1 2
1 2
06 - 09 18 - 21
07 - 09 20 - 23
06 - 09 10 - 21
06 - -- -- - 21
06 - -- -- - 21
10 - 12 20 - 23
10 - 12 20 - 23
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
06-09 18-21
07-09 00-00
06-09 00-00
06-09 00-00
06-09 00-00
10-12 00-00
10-12 00-00
Room temp. DHW Operation Installer
CTC EcoHeat Monday 09:35
Night reduction Holiday
Heating circuit 2 (50)
Heating circuit 1
Room temp.
Start menu
Room temperature settings
Selecting DHW comfort
Heating system data
Installer settings menu
Extra
Hot water 0.0 hours
On
Temperature
Normal
Weekly schedule
DHW
Weekly program Day by day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Weekly program DHW
Operation data system
Status HP upper tank
Tank upper°C 49 (60)
Tank lower°C 42 (45)
Primary flow°C 42 (43)
Return flow°C 34
Radiator pump On
Mixing valve Open
Delay mixing valve 180
Electric power kW 0.0 0.0 0.0
Current L1/L2/L3 0.0 0.0 0.0
Operation data EcoHeat
Stored oper data
Compressor
Heating circuit 2
Operation data heating
Installer
Time/Language Settings Define system Service
Software display PCB: 20120205
Software HP PCB: 20120125
Installer
Installer
Time 21:34
Date 2012-02-05
Settings Heating circuit
Heating circuit 1
Heating circuit 2
Heat pump
Electric heater
Upper tank
Remote control NR
Communication
Save settings
Load settings
Load factory settings
Max primary flow°C 55
Min primary flow°C Off
Heating off, out°C 18
Heating off, time 120
Inclination°C 50
Adjustment°C 0
Room temp reduced°C -2
or
Primary flow reduced°C -3
Anti Water Hammer Yes
HP max DHW Yes
Define system Def radiator system
Heating circuit 1
Heating circuit 2
Heat pump
Room sensor Yes
Service Function test
Function test
Alarm log
Factory settings coded
Quick start compressor.
Software update, USB
Write log to USB
Control current sensors
Re-installation
Heating circuit
Heat pump
Valves
Electric heater
Total operation time h: 14196
Max primary flow°C: 51
Consumtion kWh 20
Compressor:
Operation time /24 h:m 00:00
Stored oper data
Compressor
Compressor On
Charge pump On 47%
Brine pump On
HP in/out°C 35.5 / 42.3
Current L1 4.0
Night reduction heat circ.
Weekly program Day by day NR
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Night reduction heat circ.
Weekly program Block NR
Decrease Sunday 22:00
Increase Friday 14:00
Decrease -------- 00:00
Increase -------- 00:00
Holiday
Holiday period 3days
Out Room1 Prim1 Return Room2 Prim2
Svenska Nederlands English Deutsch
Suomi Française Dansk Norsk
12 ºC
21,5 ºC
22,3 ºC
42 ºC
34 ºC
-1 ºC
2 ºC
1 2
1 2
22,2 ºC 21,2 ºC 58 ºC -5 ºC
1 2
1 2
1 2
06 - 09 18 - 21
07 - 09 20 - 23
06 - 09 10 - 21
06 - -- -- - 21
06 - -- -- - 21
10 - 12 20 - 23
10 - 12 20 - 23
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
06-09 18-21
07-09 00-00
06-09 00-00
06-09 00-00
06-09 00-00
10-12 00-00
10-12 00-00
Room temp. DHW Operation Installer
CTC EcoHeat Monday 09:35
Night reduction Holiday
Heating circuit 2 (50)
Heating circuit 1
Room temp.
Start menu
Room temperature settings
Selecting DHW comfort
Heating system data
Installer settings menu
Extra
Hot water 0.0 hours
On
Temperature
Normal
Weekly schedule
DHW
Weekly program Day by day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Weekly program DHW
Operation data system
Status HP upper tank
Tank upper°C 49 (60)
Tank lower°C 42 (45)
Primary flow°C 42 (43)
Return flow°C 34
Radiator pump On
Mixing valve Open
Delay mixing valve 180
Electric power kW 0.0 0.0 0.0
Current L1/L2/L3 0.0 0.0 0.0
Operation data EcoHeat
Stored oper data
Compressor
Heating circuit 2
Operation data heating
Installer
Time/Language Settings Define system Service
Software display PCB: 20120205
Software HP PCB: 20120125
Installer
Installer
Time 21:34
Date 2012-02-05
Settings Heating circuit
Heating circuit 1
Heating circuit 2
Heat pump
Electric heater
Upper tank
Remote control NR
Communication
Save settings
Load settings
Load factory settings
Max primary flow°C 55
Min primary flow°C Off
Heating off, out°C 18
Heating off, time 120
Inclination°C 50
Adjustment°C 0
Room temp reduced°C -2
or
Primary flow reduced°C -3
Anti Water Hammer Yes
HP max DHW Yes
Define system Def radiator system
Heating circuit 1
Heating circuit 2
Heat pump
Room sensor Yes
Service Function test
Function test
Alarm log
Factory settings coded
Quick start compressor.
Software update, USB
Write log to USB
Control current sensors
Re-installation
Heating circuit
Heat pump
Valves
Electric heater
Total operation time h: 14196
Max primary flow°C: 51
Consumtion kWh 20
Compressor:
Operation time /24 h:m 00:00
Stored oper data
Compressor
Compressor On
Charge pump On 47%
Brine pump On
HP in/out°C 35.5 / 42.3
Current L1 4.0
Night reduction heat circ.
Weekly program Day by day NR
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Night reduction heat circ.
Weekly program Block NR
Decrease Sunday 22:00
Increase Friday 14:00
Decrease -------- 00:00
Increase -------- 00:00
Holiday
Holiday period 3days
Out Room1 Prim1 Return Room2 Prim2
Svenska Nederlands English Deutsch
Suomi Française Dansk Norsk
12 ºC
21,5 ºC
22,3 ºC
42 ºC
34 ºC
-1 ºC
2 ºC
1 2
1 2
22,2 ºC 21,2 ºC 58 ºC -5 ºC
1 2
1 2
1 2
06 - 09 18 - 21
07 - 09 20 - 23
06 - 09 10 - 21
06 - -- -- - 21
06 - -- -- - 21
10 - 12 20 - 23
10 - 12 20 - 23
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
06-09 18-21
07-09 00-00
06-09 00-00
06-09 00-00
06-09 00-00
10-12 00-00
10-12 00-00
Room temp. DHW Operation Installer
CTC EcoHeat Monday 09:35
Night reduction Holiday
Heating circuit 2 (50)
Heating circuit 1
Room temp.
Start menu
Room temperature settings
Selecting DHW comfort
Heating system data
Installer settings menu
Extra
Hot water 0.0 hours
On
Temperature
Normal
Weekly schedule
DHW
Weekly program Day by day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Weekly program DHW
Operation data system
Status HP upper tank
Tank upper°C 49 (60)
Tank lower°C 42 (45)
Primary flow°C 42 (43)
Return flow°C 34
Radiator pump On
Mixing valve Open
Delay mixing valve 180
Electric power kW 0.0 0.0 0.0
Current L1/L2/L3 0.0 0.0 0.0
Operation data EcoHeat
Stored oper data
Compressor
Heating circuit 2
Operation data heating
Installer
Time/Language Settings Define system Service
Software display PCB: 20120205
Software HP PCB: 20120125
Installer
Installer
Time 21:34
Date 2012-02-05
Settings Heating circuit
Heating circuit 1
Heating circuit 2
Heat pump
Electric heater
Upper tank
Remote control NR
Communication
Save settings
Load settings
Load factory settings
Max primary flow°C 55
Min primary flow°C Off
Heating off, out°C 18
Heating off, time 120
Inclination°C 50
Adjustment°C 0
Room temp reduced°C -2
or
Primary flow reduced°C -3
Anti Water Hammer Yes
HP max DHW Yes
Define system Def radiator system
Heating circuit 1
Heating circuit 2
Heat pump
Room sensor Yes
Service Function test
Function test
Alarm log
Factory settings coded
Quick start compressor.
Software update, USB
Write log to USB
Control current sensors
Re-installation
Heating circuit
Heat pump
Valves
Electric heater
Total operation time h: 14196
Max primary flow°C: 51
Consumtion kWh 20
Compressor:
Operation time /24 h:m 00:00
Stored oper data
Compressor
Compressor On
Charge pump On 47%
Brine pump On
HP in/out°C 35.5 / 42.3
Current L1 4.0
Night reduction heat circ.
Weekly program Day by day NR
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Night reduction heat circ.
Weekly program Block NR
Decrease Sunday 22:00
Increase Friday 14:00
Decrease -------- 00:00
Increase -------- 00:00
Holiday
Holiday period 3days
Out Room1 Prim1 Return Room2 Prim2
3.5

20
CTC EcoHeat 400
General Information
4.4 Operation
This menu displays current temperatures and the
operational data for your heating system.
The screen shows the incoming and outgoing temperatures
from the heat pump.
Brine in
At the top left of the heat pump (2°C) the brine's current
temperature is shown from the collector to the heat pump.
Brine return
The bottom left value (-1°C) is the return temperature of the
brine going back into the collector hose. The values vary
during the year according to the heat source's capacity and
the energy drawn out.
Primary flow radiators
At the right of the heat pump (42°C) the temperature of the
primary flow to the house's radiators is shown. This value
will vary during the year according to the parameters set
and the current outdoor temperature.
Return radiators
At the bottom right (34°C) the return temperature is shown
for the radiator water returning to the heat pump. This value
will vary during operation according to the parameters set,
the radiator system's capacity and the current outdoor
temperature.
When the pumps are in operation, the icons also rotate on screen.
Svenska Nederlands English Deutsch
Suomi Française Dansk Norsk
12 ºC
21,5 ºC
22,3 ºC
42 ºC
34 ºC
-1 ºC
2 ºC
1 2
1 2
22,2 ºC 21,2 ºC 58 ºC -5 ºC
1 2
1 2
1 2
06 - 09 18 - 21
07 - 09 20 - 23
06 - 09 10 - 21
06 - -- -- - 21
06 - -- -- - 21
10 - 12 20 - 23
10 - 12 20 - 23
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
06-09 18-21
07-09 00-00
06-09 00-00
06-09 00-00
06-09 00-00
10-12 00-00
10-12 00-00
Room temp. DHW Operation Installer
CTC EcoHeat Monday 09:35
Night reduction Holiday
Heating circuit 2 (50)
Heating circuit 1
Room temp.
Start menu
Room temperature settings
Selecting DHW comfort
Heating system data
Installer settings menu
Extra
Hot water 0.0 hours
On
Temperature
Normal
Weekly schedule
DHW
Weekly program Day by day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Weekly program DHW
Operation data system
Status HP upper tank
Tank upper°C 49 (60)
Tank lower°C 42 (45)
Primary flow°C 42 (43)
Return flow°C 34
Radiator pump On
Mixing valve Open
Delay mixing valve 180
Electric power kW 0.0 0.0 0.0
Current L1/L2/L3 0.0 0.0 0.0
Operation data EcoHeat
Stored oper data
Compressor
Heating circuit 2
Operation data heating
Installer
Time/Language Settings Define system Service
Software display PCB: 20120205
Software HP PCB: 20120125
Installer
Installer
Time 21:34
Date 2012-02-05
Settings Heating circuit
Heating circuit 1
Heating circuit 2
Heat pump
Electric heater
Upper tank
Remote control NR
Communication
Save settings
Load settings
Load factory settings
Max primary flow°C 55
Min primary flow°C Off
Heating off, out°C 18
Heating off, time 120
Inclination°C 50
Adjustment°C 0
Room temp reduced°C -2
or
Primary flow reduced°C -3
Anti Water Hammer Yes
HP max DHW Yes
Define system Def radiator system
Heating circuit 1
Heating circuit 2
Heat pump
Room sensor Yes
Service Function test
Function test
Alarm log
Factory settings coded
Quick start compressor.
Software update, USB
Write log to USB
Control current sensors
Re-installation
Heating circuit
Heat pump
Valves
Electric heater
Total operation time h: 14196
Max primary flow°C: 51
Consumtion kWh 20
Compressor:
Operation time /24 h:m 00:00
Stored oper data
Compressor
Compressor On
Charge pump On 47%
Brine pump On
HP in/out°C 35.5 / 42.3
Current L1 4.0
Night reduction heat circ.
Weekly program Day by day NR
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Night reduction heat circ.
Weekly program Block NR
Decrease Sunday 22:00
Increase Friday 14:00
Decrease -------- 00:00
Increase -------- 00:00
Holiday
Holiday period 3days
Out Room1 Prim1 Return Room2 Prim2
Information
Press the information button to display
the operational data for the relevant
item.
Current outdoor temperature
Shows the current outdoor temperature.
The control system uses this value
to calculate the various operational
parameters.
1
2
Current indoor temperature
Shows the current room temperature
(if a room sensor is selected during
operation). If two radiator systems
are installed, the values for both are
displayed.