CTC Union EcoHeat 400 Manual

Providing sustainable energy solutions worldwide
162 205 02-3 2018-01-23
Installation and Maintenance Manual
CTC EcoHeat 400
400V 3N~ / 230V 1N~
IMPORTANT
READ CAREFULLY BEFORE USE
KEEP FOR FUTURE REFERENCE

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

162 205 02-3 2018-01-23
Installation and maintenance manual
CTC EcoHeat 400
400 V 3N~ / 230 V 1N~

4CTC EcoHeat 400
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
Check list _____________________________________ 6
Important to remember!_________________________ 7
Your home’s heating installation _________________ 9
1. Technical Data _____________________________________________________ 13
1.1 Single phase 230V 1N~ ____________________________________15
1.2 Measurements and connections ________________________17
2. CTC EcoHeat 400 design ___________________________________ 18
3. Parameter list ______________________________________________________ 19
4. Menu overview ____________________________________________________ 20
5. Detail Description Menus___________________________________ 22
5.1 Room temp. ____________________________________________________23
5.1.1 Setting room temp without a sensor _________ 23
5.1.2 Faulty outdoor /room sensor________________ 23
5.1.3 Night reduction temperature ________________ 24
5.1.4 Holiday __________________________________ 24
5.2 DHW ______________________________________________________________25
5.2.1 Weekly program DHW _____________________ 25
5.3 Operation________________________________________________________ 26
5.3.1 Operation data EcoHeat ___________________ 27
5.3.2 Stored operation data _____________________ 28
5.3.3 Operation data compressor_________________ 28
5.3.4 Operation data heating ____________________ 29
5.3.5 Stored oper data__________________________ 29
5.4 Installer ___________________________________________________________30
5.4.1 Time/Language ___________________________ 30
5.4.2 Settings _________________________________ 31
5.4.3 Define system ____________________________ 40
5.4.4 Def heating circuit 1 or 2 ___________________ 40
5.4.5 CTC EcoVent (accessory) __________________ 42
5.4.6 Define CTC SmartControl (accessory) ________ 42
5.4.7 Define Remote Control_____________________ 43
5.4.8 Service __________________________________ 51
6. Operation and Maintenance ______________________________ 55
7. Fault Tracing/Appropriate Measures ________________ 56
7.1 Information messages ______________________________________ 58
7.2 Alarm messages ______________________________________________60
8. Installation____________________________________________________________ 62
8.1 Transportation__________________________________________________ 62
8.2 Unpacking_______________________________________________________ 62
8.3 Recycling ________________________________________________________62
8.4 Standard delivery _____________________________________________ 62
9. Pipe installation___________________________________________________ 63
9.1 Filling ______________________________________________________________63
9.2 Schematic diagram __________________________________________64
10. Connecting the brine system_____________________________ 68
10.1 Brine system schematic diagram _______________________70
10.2 Brine pump _____________________________________________________72
11. Energyflex ____________________________________________________________ 73
12. Electrical installation___________________________________________ 76
12.1 Positioning of electrical components __________________78
12.2 Settings made by the installation electrician. _______80
12.3 Installing a backup power supply _______________________ 80
12.4 Tank wiring diagram 400V 3N~__________________________ 82
12.5 Cooling module wiring diagram 400V 3N~ __________84
12.6 Tank wiring diagram 230V 1N~__________________________ 86
12.7 Cooling module wiring diagram 230V 1N~ __________88
12.8 Parts list__________________________________________________________89
12.9 Connection – pump(G46) to operating thermostat
function___________________________________________________________ 90
12.10 Groundwater heating_______________________________________ 90
13. Sensor resistance _______________________________________________ 91
14. First start______________________________________________________________ 92
Manufacturing number

5CTC EcoHeat 400
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.

6CTC EcoHeat 400
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
Heat pump activated and started
Electric power and fuse, adapted for the property, in normal operation and with backup power supply
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
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
iInformation in this type of box [i] is intended to help ensure that the product
functions optimally.
!Information in this type of box [!] is particularly important for correctly installing and
using the product.
Turn off the power with an omnipolar switch before doing any work on the
product.
The product must be connected to protective earth.
The product is classified as IPX1. The product must not be rinsed with water.
When handling the product with a hoist ring or similar device, make sure that
the lifting equipment, eyebolts and other parts are not damaged. Never stand
under the hoisted product.
Never jeopardise safety by removing bolted covers, hoods or similar.
Any work on the product’s cooling system should be carried out by authorised
personnel only.
The product’s electrical systems should only be installed and serviced by a
qualified electrician.
Safety valve check:
-Safety valve for boiler/system to be checked regularly.
The product must not be started if it is not filled with water; instructions are in
the “Pipe installation” section.
WARNING: Do not switch on the product if there is a possibility that the water in
the heater is frozen.
This device can be used by children from the age of three years and above and
by people with reduced physical, sensory or mental ability or lack of experience
or knowledge if they have been taught, either with supervision or with the
instructions provided, how to use the device safely and understand the risks
involved. Children should not play with the device. Cleaning and maintenance
should not be carried out by children without supervision.
If these instructions are not followed when installing, operating and maintaining
the system, Enertech’s commitment under the applicable warranty terms is not
binding.
8CTC EcoHeat 400

9
CTC EcoHeat 400
Your home’s heating installation
Your home's heating installation
iThe set heating curve always takes priority. The room sensor can only increase
or decrease the heat beyond the set heating curve to a certain extent. Where
operating without a room sensor, the selected heating curve determines the
flow temperature supplied to the radiators.
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. (This is to find the
lowest curve for the most economical use of the heat pump.)
• 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

10 CTC EcoHeat 400
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.
iIf 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.

11CTC EcoHeat 400
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
Outside Temperature
Outside Temperature
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).
Inclination 50°C
Adjustment +5°C
Inclination 50°C
Adjustment 0°C
Heating off, out

12 CTC EcoHeat 400
ºC
ºC
Summer-time operation
All properties have internal heat gains (lamps, oven,
body 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 value, "Heating off, outside", can be
changed in the Advanced/Settings/Heat System menu.
In systems with a radiator pump, the radiator pump
stops when the heat is switched off. The heating starts
up automatically when it is required again.
Automatic or remote-controlled summer period
The factory setting causes "summer" to commence
automatically at 18ºC, as "Heating mode" is set to
"Auto".
Heating,mode Auto (Auto/On/Off)
Auto means automatic.
On means that the heating is on. For systems with
a mixing valve and a radiator pump, the mixing valve
operates to the primary flow setpoint and the radiator
pump is on.
Off means that the heating is switched off. For systems
with a radiator pump, the radiator pump is switched off.
Heating, ext. mode - (- /Auto/On/Off)
Facility for remote control of whether the heating is to be
on or off.
Auto means automatic.
On means that the heating is on. For systems with
a mixing valve and a radiator pump, the mixing valve
operates to the primary flow setpoint and the radiator
pump is on.
Off means that the heating is switched off. For systems
with a radiator pump, the radiator pump is switched off.
- No selection means no function when activated.
Heating up
Outside Temperature
Heating off, out
Primary Flow Temperature Heating
switched
off

13
CTC EcoHeat 400
1. Technical Data
EcoHeat
406
EcoHeat
408
EcoHeat
410
EcoHeat
412
400V 3N~ 50 Hz
kW 11.7 12.6 13.4 14.1
A 16.6 17.7 19.8 23.5
kW 0 - 9.0
kW 6.1/ 9.0/ 9.0 5.2/ 8.4 / 9.0 4.6/ 7.5/ 9.0 3.8/ 6.9/ 9.0
IPX1
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
@ -5/45
kW 1.51 2.04 2.52 2.99
@ -5/45
- 3.09 3.34 3.30 3.30
@ 0/35 | 0/45 | 5/55
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
@ 0/35 | 0/45 | 5/55
kW 1.29 | 1.54 | 1.87 1.79 | 2.15 | 2.52 2.17 | 2.59 | 3.11 2.55 | 3.07 | 3.71
@ 0/35 | 0/45 | 5/55
- 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
@ 5/35 | 5/45 | 5/55
kW 1.30 | 1.56 | 1.91 1.88 | 2.24 | 2.62 2.19 | 2.64 | 3.23 2.65 | 3.15 | 3.75
@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
Electrical Data
Electrical data
Rated power
Max starting current
Immersion heater (steps of 0.3 kW)
Max immersion heater output
@ fuse size 16 / 20 / 25 A
IP class
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)
Input power 1)
COP 1)
Output from compressor 1)
Input power 1)
COP 1)
Output from compressor 1)
Input power 1)
COP 1)
Max. operating current
Compressor
1) EN14511:2007, incl. heating medium pump and brine pump
No annual leakage control of the refrigerant is required

14 CTC EcoHeat 400
EcoHeat
406
EcoHeat
408
EcoHeat
410
EcoHeat
412
kg 1.9 1.9 1.9 2.3
ton 3,370 3,370 3,370 4,080
MPa 3.1 (31 bar)
kg 267 270 272 279
mm 672 x 595 x 1904
mm 1925
dB(A) 44.9 43.9 48.5 48.0
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
l/s 0.27 0.31 0.38 0.44
l/s 0.37 0.51 0.64 0.73
EcoHeat
406
EcoHeat
408
EcoHeat
410
EcoHeat
412
l
bar 10
°C 110
Other data
Refrigerant quantity (R407C, fluorinated
greenhouse gases GWP 1774)
CO2 equivalent
Interrupt value switch HP
Weight
Depth x Width x Height
Minimum ceiling height
Sound power according to EN12102
Brine system
Water volume (V)
Brine system min./max. temp. (TS)
Brine system min./max. pressure (PS)
Brine system min. flow, ∆t = 5 °K
Brine system nominal flow, ∆t = 3 °K
Brine system pump Class A circulation pump
Pump capacity See diagram in the Pipe installation chapter
Hot water system
Water volume, hot water coil (V) 5.7
Max. operating pressure, hot water coil (PS)
Max. temperature, hot water coil (TS)
No annual leakage control of the refrigerant is required

15
CTC EcoHeat 400
1.1 Single phase 230V 1N~
EcoHeat
406
EcoHeat
408
EcoHeat
410
EcoHeat
412
230V 1N~ 50 Hz
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
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
@ -5/45
kW 1,51 2,04 2,52 2,99
@ -5/45
- 3.09 3.34 3.30 3.30
@ 0/35 | 0/45 | 5/55
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
@ 0/35 | 0/45 | 5/55
kW 1,29 | 1,54 | 1,87 1,79 | 2,15 | 2,52 2,17 | 2,59 | 3,11 2,55 | 3,07 | 3,71
@ 0/35 | 0/45 | 5/55
- 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
@ 5/35 | 5/45 | 5/55
kW 1,30 | 1,56 | 1,91 1,88 | 2,24 | 2,62 2,19 | 2,64 | 3,23 2,65 | 3,15 | 3,75
@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
A13,0 18,5 20,6 25,0
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
Operational data for heat
pump
Output from compressor 1)
Input power 1)
COP 1)
Output from compressor 1)
Input power 1)
COP 1)
Output from compressor 1)
Input power 1)
COP 1)
Max. operating current
Compressor
1) EN14511:2007, incl. heating medium pump and brine pump
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
No annual leakage control of the refrigerant is required

16 CTC EcoHeat 400
EcoHeat
406
EcoHeat
408
EcoHeat
410
EcoHeat
412
kg
1.9 1.9 1.9 2.3
ton 3,370 3,370 3,370 4,080
MPa 3.1 (31 bar)
kg 267 270 272 279
mm 642 x 600 x 1850
mm 1925
dB(A) 44.9 43.9 48.5 48.0
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
l/s 0.27 0.31 0.38 0.44
l/s 0.37 0.51 0.64 0.73
EcoHeat
406
EcoHeat
408
EcoHeat
410
EcoHeat
412
l 5.7
bar 10
°C 110
Other data
Refrigerant quantity (R407C, fluorinated
greenhouse gases)
CO2equivalent
Cut-out value pressostat HP
Weight
Depth x Width x Height
Minimum ceiling height
Sound power according to EN12102
Brine system
Water volume (V)
Brine system min./max. temp. (TS)
Brine system min./max. pressure (PS)
Brine system min. flow, ∆t = 5 °K
Brine system nominal flow, ∆t = 3 °K
Brine system pump Class A circulation pump
Pump capacity See diagram in the Pipe installation chapter
Hot water system
Water volume, hot water coil (V)
Max. operating pressure, hot water coil (PS)
Max. temperature, hot water coil (TS)
No annual leakage control of the refrigerant is required

17
CTC EcoHeat 400
1.2 Measurements and connections
1. Bleeding 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/expansion 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)
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
673
1912 1919
531
29
633
7,8

18 CTC EcoHeat 400
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.

19
CTC EcoHeat 400
3. Parameter list
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:
!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/.
Dansk Nederlands Čeština
Svenska Norsk English
Eesti Polski Slovenščina
Deutsch Suomi Française
Electric heater
Boiler upper°C 40
Boiler upper add°C 70
Boiler upper extra DHW°C 60
Boiler upper max kW 5.5
Delay mixing valve 180
Main fuse A 20
Conv. factor curr. sensors 1
Input voltage 3x400 V
Tariff EL Off
Smart block immersion Off
Smart block mixing valve Off
Settings language
Settings language
Heating circuit 1 Factory
value
User (set)
value
Max. primary flow °C 55
Min primary flow °C Off
Heating, mode Auto
Heating mode, ext -
Heating off, out °C 18
Heating off, time 120
Inclination °C 50
Adjustment °C 0
Night reduction disable ºC 5
Room temp red -2
Primary flow reduced -3
Alarm room temp ºC 5
Anti Water Hammer No
HP max DHW Yes
Upper tank Factory
value
User (set)
value
Stop temp HP ºC 60
Start/stop diff ºC 5
Max. time upper tank 20
Max. time lower tank 40
Time lower after DHW 1
Electric heater Factory
value
User (set)
value
Boiler upper °C 50
Boiler upper add °C 57
Boiler upper extraDHW ºC 60
Boiler upper max. kW 5.5
Delay mixing valve 180
Main fuse A 20
Conv. factor curr. sensors 1
Input voltage 3x400 V
Tariff EL Off
Heat pump
Compressor Blocked
Brine pump on 0
Tariff HP Off

20 CTC EcoHeat 400
4. Menu overview
12 ºC
21,5 ºC
22,3 ºC
42 ºC
34 ºC
-1 ºC
2 ºC
1 2
00 - 06 22 - 24
00 - 06 22 - 24
00 - 06 22 - 24
00 - 06 22 - 24
00 - 06 22 - 24
00 - 08 23 - 24
00 - 08 23 - 24
06 - 09 18 - 21
07 - 09 20 - 23
06 - 09 10 - 21
06 - -- -- - 21
06 - -- -- - 21
10 - 12 20 - 23
10 - 12 20 - 23
T ºC
60
40
20
0
-20
16 20 0 4 8 12
22,2 ºC 21,2 ºC 58 ºC -5 ºC
CTC EcoHeat 400
1 2
2
Night reduction Holiday
Heating circ. 2 (50)
Heating circ. 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
Operation data EcoHeat
Stored oper data
Compressor
Heating circuit 2
Stored oper data
Installer
Time/Language Settings Define system Service
Software display PCB: 20120205
Software HP PCB: 20120125
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
Status HP upper
Tank upper °C 49 (58)
Tank lower °C 42 (45)
Electric power kW 0.0
Current L1/L2/L3 0.0 0.0 0.0
Diff func. Pump / ºC Off 30
Pool ºC Off 0(22)
Monday 09:35
Room temp. DWH Operation