Regulus EcoAir 406 User manual

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EcoAir 406 | 408 | 410
EcoAir 406 | 408 | 410
EN
Installation and Operation Manual
AIR-TO-WATER HEAT PUMP
Regulus CTC EcoAir 406 | 408 | 410

2CTC EcoAir 400
General information
Table of Contents
Important to remember _______________________________________ 4
Safety Instructions!_____________________________________________ 4
1. Connection alternatives CTC EcoAir 400 ________ 5
2. Technical data______________________________________________ 6
2.1 Data sheets for 3-phase models__________________ 6
2.2 Component location _________________________________ 9
2.3 Dimensional drawing _______________________________11
2.4 Refrigerant system__________________________________11
3. Operation and Maintenance_________________________ 12
3.1 Maintenance _________________________________________12
3.2 Periodic maintenance ______________________________12
3.3 Shut-off________________________________________________12
3.4 Condensate tray_____________________________________12
4. Troubleshooting/measures __________________________ 13
4.1 Air problems__________________________________________13
4.2 Alarms _________________________________________________13
4.3 Circulation and Defrosting ________________________13
5. Installation _________________________________________________ 14
6. Placement of the heat pump ________________________ 15
7. Preparation and drainage____________________________ 16
7.1 Condensate __________________________________________17
8. Pipe installation__________________________________________ 18
8.1 Pipe connection _____________________________________18
8.2 Example of pipe connection ______________________19
9. Circulation pump ________________________________________ 20
9.1 Control/supply _______________________________________21
9.2 Operating range _____________________________________21
10. General function description ________________________ 22
10.1 Defrosting_____________________________________________22
10.2 Fan _____________________________________________________22
10.3 Charge pump/Circulation pump__________________22
11. Electrical installation____________________________________ 23
11.1 Connection of single heat pump _________________23
11.2 Series connection of heat pumps________________23
11.3 Output relay for joint alarms ______________________25
11.4 Electrical installation 400 VAC 3 phase ________25
11.5 Connection of subsequent terminals____________25
11.6 Parts list_______________________________________________26
11.7 Wiring diagram 400 VAC 3 phase _______________28
12. Wiring a controller ______________________________________ 30
13. First start ___________________________________________________ 31
14. Noise data _________________________________________________ 31
14.1 Sensor data __________________________________________32

3CTC EcoAir 400
General information
Congratulations on buying your new
EcoAir Heat Pump
The complete outdoor air source heat pump
The CTC EcoAir 400 is an outdoor air source heat pump which moves
heat from the outside air and delivers it to the heating system of the
building. The CTC EcoAir 400 works with outside air temperatures
down to -22°C.
The CTC EcoAir 400 has been designed to operate with high
efficiency. The heat pump features integrated hot gas defrosting which
keeps the evaporator coil free from ice to maintain high efficiency.
Keep this manual containing the installation and maintenance
instructions. If the heat pump is properly maintained, you will be able
to enjoy the use of your CTC EcoAir 400 for many years. This manual
will provide all the information you will need.

4CTC EcoAir 400
General information
Important to remember!
Check the following points in particular at the time of delivery and
installation:
• The CTC EcoAir must be transported and stored in an upright
position
• 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.
• 
the condensation water is conducted to a stone curb, surface water
gully, down pipe or other drainage. You should therefore consider the
position of the product.
• If the condensation water pipe is not used, the foundation must be
such that condensing water and melted snow can drain into the
ground. Make a 'stone curb' under the heat pump. Remove 70-

drainage.
• The outdoor unit must stand level – check with spirit level. For more
information about the placement of the product, see sections 6 and 7.
• Remember to leave a service area of at least 2 m in front of the
product.
• Flexible hoses should be installed closest to the heat pump. Outdoor
pipes should be thoroughly insulated with weather-proof insulation.
• Ensure that pipes used between the heat pump and the heating
system are of adequate dimensions.
• 
Safety Instructions
The following safety instructions must be observed when handling,
installing and using the heat pump:
• Close the safety switch before doing any work on the product.
• 
• 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.
!Failure to follow the instructions in this Manual may void the Warranty.

5CTC EcoAir 400
General information

CTC EcoAir 400 can be connected to the products below:
Alternative A
1. Connection alternatives
CTC EcoAir 400
!CTC EcoZenith i250 can
be connected to heat
pumps of an output up
to 11 kW.
Alternative B
CTC EcAir 400
CTC EcAir 400
1285
551
1285
551
CTC EcoZenith i250
IR14 CTC 400

6CTC EcoAir 400
General information
2. Technical data
2.1 Data sheets for 3-phase models
Regulus CTC EcoAir 406 Heat Pump
*) Incl. a secondary circulation pump, Stratos Tec 25/7 nebo Grundfos UPM GEO 25-85
**) Values measured by the manufacturer in compliance with EN 14511 incl. defrosting
!Note: In case of deviations, the product's data plate applies. When servicing always check the
product's data plate for correct refrigerant quantity.
Dimension and weight
Height 1080 mm
Width 1245 mm
Depth 545 mm
Weight 120 kg
Technical features
Compressor type Scroll
Refrigerant R 407C
Refrigerant quantity 2.2 kg
 65 °C
Heating water volume 1.9 l
Power supply 3/PE~400 V, 50 Hz V
Min. main circuit breaker incl. characteristics B10A 3-phase
Rated current* 4 A
 2500 m3/h
Max. working pressure 3.0 bar
Break value pressure switches 31 bar
Fan speed 463 ot/min
Sound power level 56.2 dB(A)
Sound pressure level at
1 m 48.2 dB(A)
5 m 34.2 dB(A)
10 m 28.2 dB(A)
Output parameters**
Air temperature °C Flow temperature °C Output kW Power input kW COP
7 °C
35 °C 6.22 1.30 4.78
45 °C 5.96 1.61 3.71
55 °C 5.67 1.86 3.04
2 °C
35 °C 4.69 1.28 3.66
45 °C 4.34 1.50 2.89
55 °C 4.25 1.75 2.43
-7 °C
35 °C 3.87 1.25 3.10
45 °C 3.63 1.47 2.47
55 °C 3.43 1.73 1.99
-15 °C
35 °C 2.84 1.17 2.42
45 °C 2.65 1.40 1.90
55 °C 2.49 1.62 1.54

7CTC EcoAir 400
General information
Regulus CTC EcoAir 408 Heat Pump
*) Incl. a secondary circulation pump, Stratos Tec 25/7 or Grundfos UPM GEO 25-85
**) Values measured by the manufacturer in compliance with EN 14511 incl. defrosting
!Note: In case of deviations, the product's data plate applies. When servicing always check the
product's data plate for correct refrigerant quantity.
Dimension and weight
Height 1080 mm
Width 1245 mm
Depth 545 mm
Weight 126 kg
Technical features
Compressor type Scroll
Refrigerant R 407C
Refrigerant quantity 2.2 kg
 65°C
Heating water volume 2.4 l
Power supply 3/PE~400 V, 50 Hz V
Min. main circuit breaker incl. characteristics B10A 3-phase
Rated current* 3.0 A
 2800 m3/h
Max. working pressure 2.5 bar
Break value pressure switches 31 bar
Fan speed 527 ot/min
Sound power level 58.3 dB(A)
Sound pressure level at
1 m 50.3 dB(A)
5 m 36.3 dB(A)
10 m 30.3 dB(A)
Output parameters**
Air temperature °C Flow temperature °C Output kW Power input kW COP
7 °C
35 °C 7,83 1.62 4.83
45 °C 7.44 1.97 3.78
55 °C 7.08 2.28 3.11
65 °C 6.61 2.67 2.98
2 °C
35 °C 6.02 1.60 3.76
45 °C 5.51 1.89 2.93
55 °C 5.88 2.22 2.65
-7 °C
35 °C 4.73 1.57 3.02
45 °C 4.62 1.85 2.50
55 °C 4.39 2.11 2.08
-15 °C
35 °C 3.63 1.50 2.42
45 °C 3.50 1.76 1.99
55 °C 3.27 2.01 1.63

8CTC EcoAir 400
General information
Regulus CTC EcoAir 410 Heat Pump
*) Incl. a secondary circulation pump, Stratos Tec 25/7 or Grundfos UPM GEO 25-85
**) Values measured by the manufacturer in compliance with EN 14511 incl. defrosting
!Note: In case of deviations, the product's data plate applies. When servicing always check the
product's data plate for correct refrigerant quantity.
Dimension and weight
Height 1080 mm
Width 1375 mm
Depth 645 mm
Weight 180 kg
Technical features
Compressor type Scroll
Refrigerant R 407C
Refrigerant quantity 2.7 kg
 65°C
Heating water volume 2.8 l
Power supply 3/PE~400 V, 50 Hz V
Min. main circuit breaker incl. characteristics B16A 3-phase
Rated current* 7.5 A
 4100 m3/h
Max. working pressure 3.0 bar
Break value pressure switches 31 bar
Fan speed 489 ot/min
Sound power level 57.3 dB(A)
Sound pressure level at
1 m 50 dB(A)
5 m 36 dB(A)
10 m 30 dB(A)
Output parameters**
Air temperature °C Flow temperature °C Output kW Power input kW COP
12 °C
35 °C 13.60 2.44 5.57
45 °C 12.91 2.95 4.38
55 °C 10.06 3.31 3.64
65 °C 11.35 3.87 2.93
7°C
35 °C 11.45 2.36 4.86
45 °C 10.89 2.86 3.81
55 °C 10.48 3.30 3.18
65 °C 9.71 3.77 2.57
2°C
35 °C 8.80 2.30 3.83
45 °C 8.58 2.79 3.07
55 °C 8.01 3.06 2.62
65 °C 8.22 3.69 2.23
-7°C
35 °C 7.32 2.29 3.19
45 °C 6.90 2.64 2.61
55 °C 6.63 3.04 2.18
-15°C
35 °C 5.63 2.13 2.65
45 °C 5.22 2.51 2.08
55 °C 4.93 2.09 1.76

9CTC EcoAir 400
General information
2.2 Component location
1. Compressor
2. 4-way valve
3. Condenser
4. Expansion valve
5. High pressure sensor
6. Low pressure sensor
7. High pressure switch
8. Connection box
9. Drain valve - water
10. 
11. Suction gas sensor
12. 
13. Return sensor
14. Outdoor temperature sensor
21
22
23
24
25
14
19
20
15

10 CTC EcoAir 400
General information
9
4
12
6
3
13
10
2
5
7
11
17 26 1
16
18
8
27
15. Hot gas sensor
16. Fan
17. Defrosting sensor in evaporator
18. Sensor on fan
19. Power supply terminal
20. Communication terminal
21. Power supply grommet
22. HP communication cable grommet
23. Communication cable grommet, series connection
24. Power supply cable grommet, circulation pump
25. Communication cable grommet, circulation pump
26. Type plate with serial number etc.
27. Heating cable