Regulus CTC EcoPart 400 Manual

Regulus CTC EcoPart 400 Heat Pump
Models 406-417 | 400 VAC 3 phase
Installation and Maintenance Manual

2CTC EcoPart 400
General information
Table of Contents
Important to remember ____________________________________________ 4
Safety Instructions! __________________________________________________ 4
1. Connection alternatives CTC EcoPart 400__________ 5
1.1 General _____________________________________________________ 5
2. Technical data___________________________________________________ 6
2.1 Table 400 VAC 3 phase_________________________________ 6
2.2 Component location _____________________________________ 8
2.3 Dimensional drawing ____________________________________ 8
2.4 Operating range __________________________________________ 9
2.5 Refrigerant system_______________________________________ 9
3. Operation and Maintenance_____________________________ 10
3.1 Periodic maintenance __________________________________10
3.2 Shut-off ____________________________________________________10
4. Troubleshooting/measures_______________________________ 10
4.1 Air problems ______________________________________________10
4.2 Alarms _____________________________________________________10
5. Installation ______________________________________________________ 11
5.1 Heating medium side connection ___________________12
5.1.1 Circulation pump _____________________________________12
5.2 Connecting the brine system _________________________13
5.3 Pump curves _____________________________________________16
5.3.1 Standard brine pump________________________________16
5.3.2 High efficiency brine pump ________________________16
6. Electrical installation________________________________________ 18
6.1 Series connection of heat pumps ___________________18
6.1.1 Shielded communication ___________________________18
6.1.2 Terminated position__________________________________19
6.2 Output relay for joint alarms __________________________19
6.3 CTC Basic display (accessory) ______________________19
6.3.1 Connection ____________________________________________19
6.4 Electrical installation 400 VAC 3 phase ___________20
6.5 Wiring diagram 400 VAC 3 phase___________________21
6.5.1 CTC EcoPart 406-412 ______________________________21
6.5.2 CTC EcoPart 414-417 ______________________________22
7. Wiring a controller ___________________________________________ 23
7.1 Wiring alternative 1 _____________________________________23
7.2 Wiring alternative 2 _____________________________________24
8. First start ________________________________________________________ 24
EC Declaration of Conformity _________________________________ 25

3CTC EcoPart 400
General information
Congratulations on buying your new
EcoPart 400 Heat Pump
The complete heat pump for bedrock, ground or
lake heat sources
The CTC EcoPart 400 is a heat pump that takes heat from bedrock,
ground or lake heat sources and supplies it to the existing heating system
in the house.
The CTC EcoPart 400 is designed to operate with high efficiency and
a low noise level.
Keep this manual containing the installation and maintenance instructions.
If the heat pump is properly maintained, you will be able to enjoy using
your CTC EcoPart 400 for many years. This manual will provide all the
information you will need.

4CTC EcoPart 400
General information
Important to remember!
Check the following points in particular at the time of delivery and
installation:
• The CTC EcoPart must be transported and stored in an upright
position. For transport into a house it may be laid on its back for
a short time.
• 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 firm surface, preferably made of concrete.
Should the product be standing on a soft carpet, a rigid board 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 the product in rooms with thin walls, as people in the
adjoining room may be disturbed by the compressor and vibrations.
• Ensure that pipes used between the heat pump and the heating
system are of adequate dimensions.
• Ensure that the circulation pump has sufficient capacity.
Safety Instructions
The following safety instructions must be observed when handling,
installing and using the heat pump:
• Turn off the safety (power) switch before doing any work on the
product.
• Prior to filling the system with the recommended antifreeze fluid, the
system should be flushed thoroughly with antifreeze 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 done on the product’s electric or cooling system should be
done by a competent engineer.
• This product is intended exclusively for indoor installation.
!Failure to follow the instructions in this Manual may void the Warranty.

5CTC EcoPart 400
General information
1. Connection alternatives
CTC EcoPart 400
CTC EcoPart 400
1.1 General
The illustration below shows connection alternatives available for the CTC
EcoPart 400. In some cases, a CTC Basic display may be needed. See
the chapter on Wiring a controller.
Alternative A
CTC EcoPart 400 can be connected to the products below:
IR 12 CTC 400
Alternative B
The CTC EcoPart 400 can be operated with an existing boiler via the
CTC Basic Display accessory. This can be done with a fixed temperature
or based on thermostatic control. Given that the standard version of the
CTC EcoPart 400 does not have its own controller, the CTC Basic Display
accessory is required.

6CTC EcoPart 400
General information
2. Technical data
2.1 Table 400 VAC 3 phase
Electrical data EcoPart 406 EcoPart 408 EcoPart 410 EcoPart 412
Rated power kW 2.7 3.5 4.2 5.1
Rated current A 5.8 6.5 8.1 9.6
IP protection IPX1
Other data EcoPart 406 EcoPart 408 EcoPart 410 EcoPart 412
Refrigerant quantity (R407C) kg 2,1 2,1 2,1 2,5
Compressor oil FV50S Polyolester (POE)
Interrupt value switch HP MPa 3,1 (31 bar)
Weight kg 138 143 148 164
Width x Height x Depth mm 600 x 760 x 672
Brine system EcoPart 406 EcoPart 408 EcoPart 410 EcoPart 412
Fluid volume l 2.3 2.9 2.9 3.4
Brine system min./max. temp. °C -5/20
Brine system min./max. pressure bar 0.2/3.0
Brine system min. flow, Δt=5 K l/s 0.22 0.31 0.38 0.44
Brine system nominal flow, Δt=3 K l/s 0.37 0.51 0.64 0.73
Brine system pump, standard TOP-S 25/7 TOP-S 25/10
Brine system pump speed adjustment 3
Brine system high efficiency pump Wilo Stratos Para 25/8 Wilo Stratos
Para 25/12
Brine system high efficiency pump speed
Pump capacity
Heating system EcoPart 406 EcoPart 408 EcoPart 410 EcoPart 412
Heating medium min. flow 2) l/s 0.14 0.20 0.24 0.28
Heating medium nominal flow 3) l/s 0.28 0.39 0.48 0.56
Operational data for heat pump EcoPart 406 EcoPart 408 EcoPart 410 EcoPart 412
Output from compressor 1) @ -5/45 kW 4.68 6.84 8.33 9.88
COP 1) @ -5/45 - 3.09 3.34 3.30 3.30
Output from compressor 1) @ 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
Output from compressor 1) @ 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
Max. operating current Compressor A 4.5 5.2 6.8 8.2
Sound power according to EN12102 dB(A) 43.0 42.5 48.5 50.3
1) EN14511:2007, incl.:
heating medium pump (EP406/408 - Stratos Tec 25/6 and EP410/412 - Stratos Tec 25/7)
brine system pump (EP406/410 - Wilo Stratos Para 25/8 and EP412 - Wilo Stratos Para 25/12)
2) At Δt = 10 K and 0/35 °C heat pump operation
3) At Δt = 5 K and 0/35 °C heat pump operation

7CTC EcoPart 400
General information
1) EN14511:2007, incl.:
heating medium pump (EP406/408 - Stratos Tec 25/6 and EP410/412 - Stratos Tec 25/7)
brine system pump (EP406/410 - Wilo Stratos Para 25/8 and EP412 - Wilo Stratos Para 25/12)
2) At Δt = 10 K and 0/35 °C heat pump operation
3) At Δt = 5 K and 0/35 °C heat pump operation
Electrical data EcoPart 414 EcoPart 417
Rated power kW 6.0 7.4
Rated current A 12.2 13.9
IP protection IPX1
Other data EcoPart 414 EcoPart 417
Refrigerant quantity (R407C) kg 2,9 2,9
Compressor oil Polyolester (POE)
Interrupt value switch HP MPa 3,1 (31 bar)
Weight kg 164 164
Width x Height x Depth mm 600 x 760 x 672
Brine system EcoPart 414 EcoPart 417
Fluid volume l 4.07 4.07
Brine system min./max. temp. °C -5/20
Brine system min./max. pressure bar 0.2/3.0
Brine system min. flow, Δt=5 K l/s 0.53 0.63
Brine system nominal flow, Δt=3 K l/s 0.88 1.05
Brine system pump, standard TOP-S 25/10
Brine system pump speed adjustment 3
Brine system high efficiency pump Wilo Stratos Para 25/12
Brine system high efficiency pump speed
Pump capacity
Heating system EcoPart 414 EcoPart 417
Heating medium min. flow 2) l/s 0.34 0.40
Heating medium nominal flow 3) l/s 0.68 0.81
Operational data for heat pump EcoPart 414 EcoPart 417
Output from compressor 1) @ -5/45 kW 12.09 14.05
COP 1) @ -5/45 - 3.24 3.19
Output from compressor 1) @ 0/35 | 0/45
0/55
kW 14.47 | 13.93
13.40
16.76 | 16.14
15.87
COP 1) @ 0/35 | 0/45
0/55
- 4.54 | 3.64
2.95
4.52 | 3.61
3.07
Output from compressor 1) @ 5/35 | 5/45
5/55
kW 16.48 | 15.98
15.28
19.25 | 18.42
18.16
COP 1) @ 5/35 | 5/45
5/55
- 5.13 | 4.11
3.28
5.02 | 4.05
3.38
Max. operating current Compressor A 9.14 11.5
Sound power according to EN12102 dB(A) 53.0 55.5

8CTC EcoPart 400
General information
1. Compressor
2. Evaporator
3. Condenser
4. Drying filter
5. Expansion valve
6. High pressure switch
7. Terminal box
8. High pressure sensor
9. Low pressure sensor
10. Drain valve cold side/Brine
11. Drain valve hot side/Heating water
12. Adapter 130 - 6/4”
13. Circulation pump cold side
14. Adjustable feet
15. Communication cable grommet
16. Power supply grommet
17. Brine in Ø28 mm (from bedrock)
18. Brine out Ø28 mm (to bedrock)
19. Heating fluid out Ø 22 mm (EcoPart 406-41
Heating fluid out Ø 28 mm (EcoPart 414-417)
20. Heating fluid in Ø 22 mm (EcoPart 406-412)
Heating fluid in Ø 28 mm (EcoPart 414-417)
21. Hot gas sensor
22. Brine sensor in
23. Brine sensor out
24. Heating system return sensor
25. Heating system flow sensor
26. Service outlets
1
7
16
6
21
8
24
14
22
325 215
4
5
9
23
13
17181920
10
11
2.2 Component location
2.3 Dimensional drawing
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12
26

9CTC EcoPart 400
General information
13 24
5
8
6
7
91011
12 13
1514
16
17
1. Brine (heat source)
2. Heating system
3. Evaporator
4. Condenser
5. Compressor
6. Expansion valve (electronic)
7. Drying filter
8. Refrigerant exchanger
9. Low pressure sensor
10. High pressure sensor
11. High pressure switch
12. Suction gas temperature
13. Hot gas temperature
14. Brine temperature
15. HP Flow temperature
16. HP Return temperature
17. Expansion valve control
2.4 Operating range
Flow temperature ºC
Brine out temp. ºC
2.5 Refrigerant system

10 CTC EcoPart 400
General information
3. Operation and Maintenance
4. Troubleshooting/measures
The EcoPart Heat Pump is designed to provide reliable operation and high
levels of comfort, and to have a long service life. Various tips are given
below which may be helpful and guide you in the event of an operational
malfunction.
If a fault occurs, you should always contact the installer who installed your
unit. If the installer believes the malfunction is due to a material or design
fault, then they will contact the supplier to check and rectify the issue.
Always provide the product’s serial number.
4.1 Air problems
If you hear a rasping sound from the heat pump, check that it is properly
bled. Top up with water where required, so that the correct pressure is
achieved. If this noise recurs, call a technician to check the cause.
4.2 Alarms
Any alarms and information texts from the CTC EcoPart 400 are displayed
in the product which is used to control it; you should therefore consult the
manual for that controller.
When the installer has installed your new heat pump, you should check
together that the system is in perfect operating condition. Let the installer
show you where the power switches, controls and fuses are so that you
know how the system works and how it should be maintained. Bleed
the radiators (depending on type of system) after around three days of
operation and top up with water if required.
3.1 Periodic maintenance
After three weeks’ operation and then every three months during the first
year. Then once a year:
• Check that the installation is free of leaks.
• Check that the product and the system are free of air; air bleed if
necessary, see the section Connecting the brine system.
• Check that the brine system is still pressurised and the fluid level in
the brine vessel is adequate.
3.2 Shut-down
The heat pump is shut down using the operating switch. If there is a risk of
the water freezing, all the water shall be drained out from the heat pump!