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Assembly and operating instructions
REMKO WKF / WKF-compact 85 / 120 / 180
Inverter heat pumps
Instructions for the Technician
0034-2012-12 Edition 2, en_GB
Read the instructions prior to performing any task!
Made by REMKO
Read these operating instructions carefully before commissioning / using this device!
These instructions are an integral part of the system and must always be kept near or on the device.
Subject to modifications; No liability accepted for errors or misprints!
Installation and operating instructions (translation of the original)
Table of contents
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REMKO WKF / WKF-compact
4
1 Safety and user notes
1.1 General safety notes
Carefully read the operating manual before commissioning the units for the first time. It contains useful tips and notes such as hazard warnings to prevent personal injury and material damage.
Failure to follow the directions in this manual not only presents a danger to people, the environment and the system itself, but will void any claims for liability.
Keep this operating manual and the refrigerant data sheet near to the units.
1.2 Identification of notes
This section provides an overview of all important safety aspects for proper protection of people and safe and fault-free operation.The instructions and safety notes contained within this manual must be observed in order to prevent accidents, personal injury and material damage.
Notes attached directly to the units must be observed in their entirety and be kept in a fully legible condition.
Safety notes in this manual are indicated by symbols. Safety notes are introduced with signal words which help to highlight the magnitude of the danger in question.
DANGER!
Contact with live parts poses an immediate danger of death due to electric shock. Damage to the insulation or individual components may pose a danger of death.
DANGER!
This combination of symbol and signal word warns of a situation in which there is immediate danger, which if not avoided may be fatal or cause serious injury.
WARNING!
This combination of symbol and signal word warns of a potentially hazardous situation, which if not avoided may be fatal or cause serious injury.
CAUTION!
This combination of symbol and signal word warns of a potentially hazardous situation, which if not avoided may cause injury or material and environmental damage.
NOTICE!
This combination of symbol and signal word warns of a potentially hazardous situation, which if not avoided may cause material and environmental damage.
This symbol highlights useful tips and recommendations as well as information for efficient and fault-free operation.
1.3 Personnel qualifications
Personnel responsible for commissioning, operation, maintenance, inspection and installation must be able to demonstrate that they hold a qualification which proves their ability to undertake the work.
1.4
Dangers of failure to observe the safety notes
Failure to observe the safety notes may pose a risk to people, the environment and the units. Failure to observe the safety notes may void any claims for damages.
In particular, failure to observe the safety notes may pose the following risks: n The failure of important unit functions.
n The failure of prescribed methods of maintenance and repair.
n Danger to people on account of electrical and mechanical effects.
1.5 Safety-conscious working
The safety notes contained in this installation and operating manual, the existing national regulations concerning accident prevention as well as any internal company working, operating and safety regulations must be observed.
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REMKO WKF / WKF-compact
1.6 Safety notes for the operator
The operational safety of the units and components is only assured providing they are used as intended and in a fully assembled state.
n The units and components may only be set up, installed and maintained by qualified personnel.
n Protective covers (grille) over moving parts must not be removed from units that are in operation.
n Do not operate units or components with obvious defects or signs of damage.
n Contact with certain unit parts or components may lead to burns or injury.
n The units and components must not be exposed to any mechanical load, extreme levels of humidity or extreme temperature.
n Spaces in which refrigerant can leak sufficient to load and vent. Otherwise there is danger of suffocation.
n All housing parts and device openings, e.g. air inlets and outlets, must be free from foreign objects, fluids or gases.
n The units must be inspected by a service technician at least once annually. Visual inspections and cleaning may be performed by the operator when the units are disconnected from the mains.
1.7
Safety notes for installation, maintenance and inspection
n Appropriate hazard prevention measures must be taken to prevent risks to people when performing installation, repair, maintenance or cleaning work on the units.
n The setup, connection and operation of the units and its components must be undertaken in accordance with the usage and operating conditions stipulated in this manual and comply with all applicable regional regulations.
n Local regulations and laws such as Water
Ecology Act must be observed.
n The power supply should be adapted to the requirements of the units.
n Units may only be mounted at the points provided for this purpose at the factory. The units may only be secured or mounted on stable structures, walls or floors.
n Mobile units must be set up securely on suitable surfaces and in an upright position. Stationary units must be permanently installed for operation.
n The units and components should not be operated in areas where there is a heightened risk of damage. Observe the minimum clearances.
n The units and components must be kept at an adequate distance from flammable, explosive, combustible, abrasive and dirty areas or atmospheres.
n Safety devices must not be altered or bypassed.
1.8
Unauthorised modification and changes
Modifications or changes to units and components are not permitted and may cause malfunctions.
Safety devices may not be modified or bypassed.
Original replacement parts and accessories authorised by the manufactured ensure safety. The use of other parts may invalidate liability for resulting consequences.
1.9 Intended use
Depending on the model, the equipment and the additional fittings with which it is equipped is only intended to be used as an air-conditioner for the purpose of cooling or heating the air in an enclosed room.
Any different or additional use shall be classed as non-intended use. The manufacturer/supplier assumes no liability for damages arising from such use. The user bears the sole risk in such cases.
Intended use also includes working in accordance with the operating and installation instructions and complying with the maintenance requirements.
Under no circumstances should the threshold values specified in the technical data be exceeded.
1.10 Warranty
For warranty claims to be considered, it is essential that the ordering party or its representative complete and return the "certificate of warranty" to
REMKO GmbH & Co. KG at the time when the units are purchased and commissioned.
The warranty conditions are detailed in the "General business and delivery conditions". Furthermore, only the parties to a contract can conclude special agreements beyond these conditions. In this case, contact your contractual partner in the first instance.
1.11 Transport and packaging
The devices are supplied in a sturdy shipping container. Please check the equipment immediately upon delivery and note any damage or missing parts on the delivery and inform the shipper and your contractual partner. For later complaints can not be guaranteed.
WARNING!
Plastic films and bags etc. are dangerous toys for children!
Why:
- Leave packaging material are not around.
- Packaging material may not be accessible to children!
1.12
Environmental protection and recycling
Disposal of packaging
All products are packed for transport in environmentally friendly materials. Make a valuable contribution to reducing waste and sustaining raw materials. Only dispose of packaging at approved collection points.
Disposal of equipment and components
Only recyclable materials are used in the manufacture of the devices and components. Help protect the environment by ensuring that the devices or components (for example batteries) are not disposed in household waste, but only in accordance with local regulations and in an environmentally safe manner, e.g. using certified firms and recycling specialists or at collection points.
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REMKO WKF / WKF-compact
2 Technical Data
2.1 Units data WKF/WKF-compact 85/120
Series
Function
System
Heat pump manager
Domestic water storage tank, enamelled
Electric booster heating / rated output
Domestic hot-water heating
(changeover valve)
Connecting oil-/ gas boiler
Heating capacity min / max
Heating capacity / compressor frequency / COP for A12/W35
Heating capacity / compressor frequency / COP
1)
for A7/W35
Heating capacity / compressor frequency / COP 1) for A2/W35
Heating capacity / compressor frequency / COP
1)
for A-7/W35
Heating capacity / compressor frequency / COP
1)
for A-15/W35
Heating capacity / compressor frequency / COP 1) for A7/W45
Heating capacity / compressor frequency / COP
1)
for A-7/W45
Heating capacity / compressor frequency / COP 1) for A7/W55
Heating capacity / compressor frequency / COP
1)
for A-7/W55
Cooling capacity min. / max.
Cooling capacity / compressor frequency / EER
2)
for A35/W7
Cooling capacity / compressor frequency / EER 2) for A35/W18
Cooling capacity / compressor frequency / EER
2)
for A27/W18
Service limits, heating
Service limits, cooling kW kW kW/Hz/COP kW/Hz/COP kW/Hz/COP kW/Hz/COP kW/ Hz/COP kW/Hz/COP kW/Hz/COP kW/Hz/COP kW/Hz/COP kW kW/Hz/EER kW/Hz/EER kW/Hz/EER
°C
°C
WKF 85
WKFcompact
85
WKF 120
Heating or Cooling
Split-Air/Water
WKFcompact
120
optional optional
Smart-Control
Series
300 l
On-site optional
Series
300 l optional Series optional Series optional
1,1 - 9,3
9,17/56/4,78 optional
2,5 - 13
10,96/61/4,82
7,97/56/4,37
4,87/56/3,34
4,31/54/2,77
3,42/54/2,28
6,74/56/3,23
3,94/56/2,13
-
-
1,6 - 9,8
5,59/49/3,04
7,47/49/3,86
6,9/49/4,42
-20 - +45
+15 - +45
9,86/61/4,44
6,95/60/3,64
6,14/61/2,89
4,82/61/2,39
10,15/58/3,67
-
8,99/61/2,78
4,63/61/1,79
2,30 - 11,0
6,79/66/2,33
5,3/38/3,66
9,46/66/3,61
Series WKF 85
50
7
WKFcompact
85
WKF 120
55
7
WKFcompact
120
Supply-temperature, heating water
Min. Supply-temperature, cooling
Refrigerant / pre-charge quantity outdoor module
Refrigerant / pre-charge quantity for up to 10 m length of ordinary pipe
Refrigerant connection
Max. refrigerant pipe length
Max. refrigerant pipe height
Power supply
Max. current consumption
Rated current consumption for A7/W35
Rated power consumption for A7/W35
Power factor A7/W35 (cosφ)
Fuse protection on-site (outdoor module)
Rated water flow (according to
EN 14511, at ∆t 5 K)
Pressure-loss at the condenser at nominal flow rate
Pressure-loss external
Air-nominal flow rate outdoor module
Max. operating pressure, water
Hydraulic connection, supply / return
Sound-power level in accordance with
DIN EN 12102:2008-09 and ISO 9614-2
Sound-pressure level, LpA 1m/5m/10m
(outdoor module)
Dimensions, indoor module
(height/width/depth)
Dimensions, outdoor module
(height/width/depth)
Enclosure class outdoor module
Weight indoor module
Weight outdoor module
°C
°C
-- / kg g / m
Inches (mm) m m
V / Hz
A
A kW
--
A delaxaction m³/h bar kPa m³/h bar
Inches (mm) dB(A) dB(A) mm mm
-kg kg
R 410A
47
3
2)
30
8,20
1,85
0,98
16
1,38
0,1
80
64,0
/ 1,90 R 410A
3/8" (9,52) / 5/8" (15,9)
10,20
2760
1" (25,4)
50 / 38,5 / 32
800 / 880 / 312
220
50
30
230 / 50
IP 24
57
1) COP = coefficient of performance or performance number according to EN 14511
2)
Contains greenhouse gas according to Kyoto protocol, GWP 1975
3) Clear-field distance
2)
50
20
1,70
0,1
80
3
1" (25,4)
67,9
998 / 940 / 330
52
74
/ 2,00
15,28
10,44
2,22
0,97
53 / 42 / 36
223
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REMKO WKF / WKF-compact
2.2 Units data WKF/WKF-compact 180
Series
Function
System
Heat pump manager
Domestic water storage tank, enamelled
Electric booster heating / rated output
Domestic hot-water heating (changeover valve)
Connecting oil-/ gas boiler
Heating capacity min / max
Heating capacity / compressor frequency / COP for A12/W35
Heating capacity / compressor frequency / COP
1) for A7/W35
Heating capacity / compressor frequency / COP
1) for A2/W35
Heating capacity / compressor frequency / COP 1) for A-7/W35
Heating capacity / compressor frequency / COP
1) for A-15/W35
Heating capacity / compressor frequency / COP 1) for A7/W45
Heating capacity / compressor frequency / COP
1) for A7/W55
Heating capacity / compressor frequency / COP
1) for A-7/W55
Cooling capacity min. / max.
Cooling capacity / compressor frequency / EER 2) for A35/W7
Cooling capacity / compressor frequency / EER
2) for A35/W18
Cooling capacity / compressor frequency / EER 2) for A27/W18
Service limits, heating
Service limits, cooling
Supply-temperature, heating water
Min. Supply-temperature, cooling
Refrigerant / pre-charge quantity outdoor unit
Refrigerant / pre-charge quantity for up to 10 m length of ordinary pipe kW kW kW/Hz/COP
WKF 180
WKF-compact
180
Heating or Cooling
Split-Air/Water
Smart-Control optional Series 300 l optional optional
Series / 9,0
Series optional optional
3,1 - 17,7
16,02 / 56 / 5,33 kW/Hz/COP kW/Hz/COP kW/Hz/COP kW/ Hz/COP kW/Hz/COP kW/Hz/COP kW/Hz/COP kW kW/Hz/EER kW/Hz/EER kW/Hz/EER
°C
°C
°C
°C
-- / kg g / m
14,02 / 56 / 4,53
9,32 / 56 / 3,53
8,20 / 56 / 2,87
6,36 / 56 / 2,40
12,27 / 58 / 3,46
12,85 / 56 / 2,92
6,99 / 56 / 1,94
2,8 - 15,0
12,2 / 72 / 2,60
12,7 / 38 / 3,81
18,20 / 66 / 4,08
-20 - +45
+15 - +45
55
7
R 410A
2)
/ 2,85
50
10
Series
Refrigerant connection
Max. refrigerant pipe length
Max. refrigerant pipe height
Power supply
Max. current consumption
Rated current consumption for A7/W35 (per phase)
Rated power consumption for A7/W35
Power factor A7/W35 (cosφ)
Fuse protection on-site (outdoor unit, delax-action)
Rated water flow (according to EN 14511, at ∆t 5 K)
Pressure-loss at the condenser at nominal flow rate
Pressure-loss external
Air-nominal flow rate outdoor module
Max. operating pressure, water
Hydraulic connection, supply / return
Sound-power level in accordance with
DIN EN 12102:2008-09 and ISO 9614-2
Sound-pressure level, LpA 1m/5m/10m (outdoor module)
Dimensions, indoor module (height/width/depth)
Dimensions, outdoor module (height/width/depth)
Enclosure class outdoor module
Weight indoor module
Weight outdoor module
Inches (mm) m m
V / Hz
A
A kW
--
A m³/h bar kPa m³/h bar
Inches (mm) dB(A) dB(A) mm mm
-kg kg
WKF 180
1)
COP = coefficient of performance or performance number according to EN 14511
2) Contains greenhouse gas according to Kyoto protocol, GWP 1975
3)
Clear-field distance
3
WKF-compact
180
3/8" (9,52) / 5/8" (15,9)
75
30
400 / 3~ / 50
7,2
5,02
3,18
0,95
3 x 16 A
2,4
0,1
80
5400
1" (25,4)
54 / 42 / 36
68,3
1420 / 940 / 330
IP 24
55 226
100
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REMKO WKF / WKF-compact
2.3 Unit dimenions outdoor modules
A
B
C
Fig. 1: Unit dimensions outdoor modules WKF/WKF-compact 85/120/180
Dimensions in mm
WKF/WKF-compact 85
WKF/WKF-compact 120
WKF/WKF-compact 180
A
880
940
940
B
800
1010
1430
C
312
330
330
2.4 Unit dimensions indoor modules
Unit dimensions indoor module WKF 85/120/180
D
D
660
620
620
E
E
346,5
360
350
792
Fig. 2: Unit dimensions indoor module series WKF 85/120/180
12
500
Unit dimensions indoor module WKF-compact 85/120/180
792,43
Fig. 3: Unit dimensions indoor module WKF-compact 85/120/180
A
261
206
143,50
108,50
578,50
508,50
478,50
386
378,50
B
260,98
206
143,50
105
378,5
385,5
478,5
508,5
578,5
Fig. 4: Pipe-socket arrangement
A: WKF 85/120/180
B: WKF-compact 85/120/180
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REMKO WKF / WKF-compact
2.5 Heat pump service limits in monovalent mode
55°C
50°C
45°C
40°C
35°C
30°C
25°C
20°C
15°C
-30°C
-20°C; 40°C
-20°C; 22°C
-20°C
-10; 50
-10°C 0°C 10°C 20°C
35; 50
30°C
35°C; 22°C
40°C
Fig. 5: Service limits and test points WKF/WKF-compact 85
AT: Outside temperature VT: Inlet temperature
Outdoor temperature [°C]
Inlet temperature [°C]
-20
22
-20
40
-10
50
Einsatzgrenzen WKF 120
40°C
35°C
30°C
25°C
60°C
55°C
50°C
45°C
20°C
15°C
-30°C
-20°C; 43°C
-20°C; 22°C
-20°C
-10; 55
-10°C 0°C 10°C
20
50
35
50
35; 55
35
22
20°C 30°C
35°C; 22°C
40°C
Fig. 6: Service limits and test points WKF/WKF-compact 120
AT: Outside temperature VT: Inlet temperature
Note: The left temperature value in the diagram refers to the supply-temperature heating water and the lower refers the outdoor air temperature.
Outdoor temperature [°C]
Inlet temperature [°C]
-20
22
-20
43
-10
55
20
55
35
55
35
22
14
40°C
35°C
30°C
25°C
60°C
55°C
50°C
45°C
20°C
15°C
-30°C
-20°C; 42°C
-20°C; 22°C
-20°C
-10; 55
-10°C 0°C 10°C 20°C
35; 55
30°C
35°C; 22°C
40°C
Fig. 7: Service limits and test points WKF/WKF-compact 180
AT: Outside temperature VT: Inlet temperature
Note: The left temperature value in the diagram refers to the supply-temperature heating water and the lower refers the outdoor air temperature.
Outdoor temperature [°C]
Inlet temperature [°C]
-20
22
-20
42
-10
55
20
55
35
55
2.6 Pump-characteristic curves, indoor module circulation pump
H/m
4850 1 /min - 1 0 V
10
4357 1 /min - 9 V
8
3864 1 /min - 8 V
6
3371 1 /min - 7 V
4
2879 1 /min - 6 V
2
0
0
2386 1 /min - 5 V
1893
1 /min - 4
1400
1
/min - 3 V
V
1 2 3
Wilo- Strat os- Para
25/1-11, 30/1-11
1~230 V - Rp1, Rp1¼
0-1 0 V
4
60
5
Q/m³/h
0
40
20
p/kPa
100
80
Fig. 8: Wilo-pump - power range
External control via analogical-in 0-10 V
Tolerances of each curve according to EN 1151-1:2006
0
P
1
/W
120
0
80
40
0
0
0,2
4
0,4 0,6
8
0,8 1,0
12 max.
1,2
16
4357
1 /min
1,4
Q/l/s
Q/Igpm
1 2 3 4 5
Q/m³/h
Level
min.
max.
Output [W]
8
140
Current [A]
0,07
1,05
Motor protection
Rotor current-proof
Rotor current-proof
35
22
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REMKO WKF / WKF-compact
2.7 Sound pressure level
5m
1m 1m 5m
10m
1m 5m
10m
Fig. 9: Distance-dependent sound pressure level for the outdoor unit in relation to installation type, in accordance with the drawing
Heat pump outdoor unit
Compressor frequency
Sound power level according to
ISO 9614-2
WKF/WKFcompact 85
WKF/WKFcompact
120
WKF/WKFcompact
180
54 Hz
64 dB(A)
67,9 dB(A)
68,3 dB(A)
Installation type, in accordance with the drawing
In free field
In front of a wall
In free field
In front of a wall
In free field
In front of a wall
Distance-dependent sound pressure level
1m
50
53
54
5m
38
42
42
10m
32
36
36
15m
29
33
33
16
2.8 Overall sound pressure levels for outdoor module
Outdoor module WKF/WKF-compact 85
REMKO Wärmepumpe WP172
Schallleistung L wA re 1pW
70,0
Typ: WKF85-AM
60,0
50,0
47,3
48,2
48,8
52,4
60,5
55,3
50,8 51,0
50,0 50,1
50,9
46,3
43,7
40,0
41,3
41,4
A7 / W 45
A-Gesamt:
64,0 dB(A)
A7 / W 45
35,6
34,7
33,4
31,1
30,0
20,0
10,0
0,0
100 160 250 400 630 1000
Frequenz (Hz)
1600 2500 4000 6300
Fig. 10: Overall sound pressure level L
P
of REMKO outdoor module series: WKF/WKF-compact 85
Middle frequency [Hz]
LI [dBA]
LWo [dBA]
FPI [dB]
25 31,50 40 50 63 80 100
(25,6) (38,3) (30,8) (37,7) (35,1) (31,3) 38,2
(34,7) (47,4) (39,9) (46,9) (44,3) (40,4) 47,3
-(14,7) -(8,2) -(8,8) -(5,2) -(3,5) 1(1,3) 0,6
125
39,1
48,2
2,0
160
39,7
48,8
4,7
Middle frequency [Hz] 200
LI [dBA] 43,3
LWo [dBA]
FPI [dB]
52,4
6,3
250
54,3
60,5
4,0
315
46,1
55,3
7,4
400
41,6
50,8
10,0
500
41,9
51,0
10,9
630
40,8
50,0
12,8
800
41,0
50,1
12,0
1000 1250
41,8 37,2
50,9
11,1
46,3
13,0
Middle frequency [Hz] 1600 2000 2500 3150 4000 5000 6300 8000 10000
LI [dBA] 34,6 21,9 32,1 32,3 26,5 25,6 24,3 (21,3) (24,1)
LWo [dBA]
FPI [dB]
43,7
14,7
31,1
27,2
41,3
13,9
41,4
11,7
35,6
13,0
34,7
10,6
33,4
9,2
(30,4)
(7,7)
(33,2)
(4,5)
Determination of sound power conforms to accuracy class 2, the standard deviation of the o. a. A-valued sound-power levels amounts to 1.5 dB.
LWo: Sound power level radiated by the outdoor unit
FPI: Correction value with regard to the environment
LI: Sound intensity
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REMKO WKF / WKF-compact
Schallleistung L wA
dB
80
re 1pW
70,0
70
60,0
54,3
54,9
49,9
50,5
62,7
Typ: WKF120-AM
55,7
NEUE GRAFIK !
59,0
55,9
57,4
57,1
54,6
54,3
52,3
49,9
47,2
44,8
41,7
40,0
50
30,0
A7 / W 55
A-Gesamt:
67,9 dB(A)
36,1
33,3
A7 / W 55
0,0
25
100
Cursor:
1 160
2
63
250
125
400
250
630
500 1000
1000
Frequenz (Hz)
2000 4000
1600 2500
8000
4000 6300
A L Hz
Fig. 11: Overall sound pressure level L
P
of REMKO outdoor module series: WKF/WKF-compact 120
Middle frequency [Hz]
LI [dBA]
LWo [dBA]
FPI [dB]
25 31,50 40 50 63 80 100
(27,6) (40,9) (38,3) (31,4) (45,3) (33,5) 40,0
(37,5) (50,8) (48,2) (41,3) (55,2) (43,4) 49,9
-(14,3) -(8,3) -(8,5) -(6,6) -(3,6) -(2,0) -0,2
125
44,4
54,3
0,7
160
40,6
50,5
2,6
Middle frequency [Hz] 200
LI [dBA] 45,0
LWo [dBA]
FPI [dB]
54,9
4,3
250
52,8
62,7
4,3
315
45,8
55,7
5,6
400
46,0
55,9
6,7
500
44,7
54,6
7,1
630
47,5
57,4
7,1
800
47,2
57,1
11,2
1000 1250
49,1 44,4
59,0
6,0
54,3
6,0
Middle frequency [Hz] 1600 2000 2500 3150 4000 5000 6300 8000 10000
LI [dBA] 42,4 40,0 37,3 34,9 31,8 26,2 23,4 (21,6) (16,2)
LWo [dBA]
FPI [dB]
52,3
5,7
49,9
5,5
47,2
5,5
44,8
5,4
41,7
5,1
36,1
6,0
33,3
6,3
(31,5)
(5,5)
(26,1)
(5,3)
Determination of sound power conforms to accuracy class 2, the standard deviation of the o. a. A-valued sound-power levels amounts to 1.5 dB.
LWo: Sound power level radiated by the outdoor unit
FPI: Correction value with regard to the environment
LI: Sound intensity
18
Outdoor module WKF/WKF-compact 180
REMKO Wärmepumpe WP173
Schallleistung L wA re 1pW
Typ: WKF180-AM
80,0
A7 / W 55
70,0
60,0
50,0
40,0
60,4
56,3
61,1
54,8 55,1 56,4 55,3 55,4
56,9 57,8
58,9
52,4
49,2
46,0
43,6
40,9
37,0
30,0
32,1
28,0
A-Gesamt:
68,3 dB(A)
20,0
A7 / W 55
10,0
0,0
100 160 250 400 630 1000
Frequenz (Hz)
1600 2500 4000 6300
Fig. 12: Overall sound pressure level L
P
of REMKO outdoor module series: WKF/WKF-compact 180
Middle frequency [Hz]
LI [dBA]
LWo [dBA]
FPI [dB]
25 31,50 40 50 63 80 100
(31,4) (41,6) (32,8) (40,8) (37,3) (37,4) 49,8
(41,9) (52,1) (43,4) (51,3) (47,9) (47,9) 60,4
-(11,6) -(9,2) -(7,7) -(5,4) -(3,2) -(2,0) 0,0
125
45,8
56,3
1,1
160
50,5
61,1
2,1
Middle frequency [Hz] 200
LI [dBA] 44,3
LWo [dBA]
FPI [dB]
54,8
6,1
250
44,6
55,1
6,4
315
45,8
56,4
8,7
400
44,8
55,3
9,4
500
44,9
55,4
9,6
630
46,4
56,9
9,2
800
47,2
57,8
11,6
1000 1250
48,4 41,9
58,9
8,4
52,4
10,0
Middle frequency [Hz] 1600 2000 2500 3150 4000 5000 6300 8000 10000
LI [dBA] 38,7 35,5 33,1 30,4 26,5 21,6 17,5 (18,1) (8,8)
LWo [dBA]
FPI [dB]
49,2
11,4
46,0
13,9
43,6
13,2
40,9
13,0
37,0
13,5
32,1
14,7
28,0
15,2
(28,6)
(11,1)
(19,3)
(14,8)
Determination of sound power conforms to accuracy class 2, the standard deviation of the o. a. A-valued sound-power levels amounts to 1.5 dB.
LWo: Sound power level radiated by the outdoor unit
FPI: Correction value with regard to the environment
LI: Sound intensity
19
REMKO WKF / WKF-compact
2.9 Characteristic curves
Heating capacity at an inlet temperature of 35 °C
8
7
6
5
10
9
12
11
4
3
2 n-max. 88 Hz n-max.
n-max. 73 Hz
NF 54 Hz n-max. 54 Hz
1 n-min.
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
AT
[°C]
Fig. 13: Heating capacity WKF/WKF-compact 85 at an inlet temperature of 35 °C
AT: Outdoor temperature
HL: Heating capacity
NF: Rated frequency
Heating capacity at an inlet temperature of 45 °C
12
11
8
7
6
10
9
5
4
3 n-max. 88 Hz n-max.
n-max. 73 Hz
NF 54 Hz n-max. 58 Hz
2
1 n-min.
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4
AT
[°C]
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Fig. 14: Heating capacity WKF/WKF-compact 85 at an inlet temperature of 45 °C
AT: Outdoor temperature
HL: Heating capacity
NF: Rated frequency
20
Heating capacity at an inlet temperature of 50 °C
10
9
8
12
11
7
6
5
4
3 n-max. 88 Hz n-max.
n-max. 73 Hz
NF 54 Hz n-max. 58 Hz
2
1 n-min.
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
AT
[°C]
Fig. 15: Heating capacity WKF/WKF-compact 85 at an inlet temperature of 50 °C
AT: Outdoor temperature
HL: Heating capacity
NF: Rated frequency
COP at an inlet temperature of 35 °C, 45 °C und 50 °C
6
5
4
VL 35° C
VL 45° C
VL 50° C
3
2
1
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
AT
[°C]
Fig. 16: COP WKF/WKF-compact 85 at an inlet temperature of 35 °C, 45 °C und 50 °C
AT: Outdoor temperature
NF: Rated frequency
VL: Inlet temperature
21
REMKO WKF / WKF-compact
Heating capacity at an inlet temperature of 35 °C
15
14
13
12
11
10
9
8
7
6
5
2
1
4
3 n-max. 88 Hz
NF 54 Hz n-max. 73 Hz n-min n-max. 58 Hz
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
AT
[°C]
Fig. 17: Heating capacity WKF/WKF-compact 120 at an inlet temperature of 35 °C
AT: Outdoor temperature
HL: Heating capacity
NF: Rated frequency
Heating capacity at an inlet temperature of 45 °C
15
14
13
12
11
10
9
8 n-max. 88 Hz n-max. 73 Hz n-max. 58 Hz
7
6
5
4
3
2
1 n-min.
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0
NF
1 2
AT
3 4
[°C]
5
54 Hz
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Fig. 18: Heating capacity WKF/WKF-compact 120 at an inlet temperature of 45 °C
AT: Outdoor temperature
HL: Heating capacity
NF: Rated frequency
22
Heating capacity at an inlet temperature of 55 °C
8
7
6
5
11
10
9
4
3
2
1
15
14
13
12 n-max. 88 Hz n-min.
NF n-max. 73 Hz
54 Hz n-max. 58 Hz
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
AT
[°C]
Fig. 19: Heating capacity WKF/WKF-compact 120 at an inlet temperature of 55 °C
AT: Outdoor temperature
HL: Heating capacity
NF: Rated frequency
COP at an inlet temperature of 35 °C, 45 °C und 55 °C
6
5
4
VL 35° C
VL 45° C
VL 55° C
3
2
1
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
AT
[°C]
Fig. 20: COP WKF/WKF-compact 120 at an inlet temperature of 35 °C, 45 °C und 55 °C
AT: Outdoor temperature
NF: Rated frequency
VL: Inlet temperature
23
REMKO WKF / WKF-compact
Heating capacity at an inlet temperature of 35 °C
20
18 n-max. 58 Hz n-max. 73 Hz
16
14 n-max. 88 Hz
12
10
NF
8
6 n-min.
4
2
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
AT
[°C]
Fig. 21: Heating capacity WKF/WKF-compact 180 at an inlet temperature of 35 °C
AT: Outdoor temperature
HL: Heating capacity
NF: Rated frequency
Heating capacity at an inlet temperature of 45 °C
16
14
12
10
20
18
8
6
4
2 n-max. 88 Hz n-min. n-max. 73 Hz
NF n-max. 58 Hz
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
AT
[°C]
Fig. 22: Heating capacity WKF/WKF-compact 180 at an inlet temperature of 45 °C
AT: Outdoor temperature
HL: Heating capacity
NF: Rated frequency
24
Heating capacity at an inlet temperature of 55 °C
20
18
16 n-max. 58 Hz n-max. 73 Hz
14
12
10 n-max. 88 Hz
NF
8
6
4
2 n-min.
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
AT
[°C]
Fig. 23: Heating capacity WKF/WKF-compact 180 at an inlet temperature of 55 °C
AT: Outdoor temperature
HL: Heating capacity
NF: Rated frequency
COP at an inlet temperature of 35 °C, 45 °C und 55 °C
6
5
4
VL 35° C
VL 45° C
VL 55° C
3
2
1
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
AT
[°C]
Fig. 24: COP WKF/WKF-compact 180 at an inlet temperature of 35 °C, 45 °C und 55 °C
AT: Outdoor temperature
NF: Rated frequency
VL: Inlet temperature
25
REMKO WKF / WKF-compact
3 Structure and function
3.1 The heat pump in general
Arguments for Remko
n
Low heating costs in comparison to oil and gas.
n
Heat pumps represent a contribution to environmental protection.
n Lower CO
2
emissions in comparison to oil and gas heating.
n All models are able to cool as well as heat.
n Low noise-level of the outdoor unit.
n Flexible installation due to split system design.
n Negligible maintenance costs.
75%* of the heat comes from the air, free of charge
75%
*
freesolar energy from the air
25%
*
electrical drive energy
Heating
Fig. 25: Free heat
* The relationship can vary depending on outdoor temperature and operating conditions.
Economical and environmentally-conscious heating
The burning of fossil-based energy sources in order to generate power creates severe consequences for the environment. A high percentage of fossil fuels is also problematic due to the limited resources of oil and gas and the price increases resulting from this. For this reason, many people today are thinking both economically and environmentally-consciously in terms of heating. The application of heat pump technology enables both of these concepts to be combined. It makes use of the energy which is permanently available in the air, water and soil and converts it into usable heating energy by means of inputting electrical energy. Yet in order to generate heat equivalent to
4kWh, only 1kWh of electricity is required. The rest is made available free-of-charge by the environment.
Heat source
There are essentially three heat sources that heat pumps can derive energy from. air, soil and groundwater. Air heat pumps have the advantage that air as a source heat is available everywhere in
unlimited quantities that can be used free of
charge. A disadvantage is that the outside air is at its coldest when the heat requirement is greatest.
Brine heat pumps extract energy from the soil. This is undertaken in serpentine pipe networks which are laid approx. 1m deep or placed by means of drilling. The disadvantage is the large space
requirements for the serpentine pipe networks or the high cost of drilling. A long-term cooling of the soil is also a possibility.
26
Water heat pumps require two wells in order to obtain heat from the groundwater, one supply well and one dry well. The development of this source is not possible everywhere, it is expensive and requires planning permission.
Function of the heat pump
A heat pump is a device which makes use of a working medium to absorb ambient heat under low temperatures and transports this heat to a place where it can be of use for heating purposes. Heat pumps work according to the same principles as a refrigerator. The difference is that heat, the byproduct of the refrigerator, is the goal of the heat pump.
The main components of the cooling circuit consist of an evaporator, a compressor, a condenser and an expansion valve. In a finned evaporator, the refrigerant evaporates both because of lower pressure and because of lower heat-source temperatures through absorption of energy from the environment. In the compressor, the refrigerant is
A
1 brought to a higher pressure and temperature by the application of electrical energy. Next, the hot refrigerant gas reaches the condenser, a plate heat-exchanger. Here the hot gas condenses, transferring heat to the heating system. The liquefied refrigerant then expands and cools in a flow regulator, the expansion valve. Then the refrigerant flows into the evaporator once more and the cycle is complete.
For control, a Smart-Control is included which ensures the independent operation of all safety devices. The water-circulation system of the Series
WKF consists of a circulation pump, plate heatexchangers, dirt traps, safety valve, a manometer, fill- and drain valves, an automatic air-bleeder and flow switch. The WKF-compact series has, in addition, a 3-way changeover valve and a domestic hot water storage.
Wall- and floor consoles, condensate pans, condensate tray with heating, a 3-way changeover valve, a overflow protection valve and other sensors are available as accessories.
B
2
4
D
C
3
Fig. 26: Functional diagram heating inverter heat pump
A: Outdoor area
B: Indoor area
C: Heating pump outdoor module
D: Heating pump indoor module
1: Condensing
2: Evaporation
3: Decompression
4: Liquefying
27
REMKO WKF / WKF-compact
Heat pump modes
Heat pumps can work in various operating modes.
Monovalent
The heat pump the only source of heat for a building all year round. This mode is particularly suitable for heating plants with low supply-water temperatures and is primarily used in combination with brine/water and water/water heat pumps.
Single energy source
The heat pump has an E-heater to handle peak loads. The heat pump covers the majority of the required heating power. Occasionally, when it is extremely cold outside, an electrical boosterheating system switches on as required in order to support the heat pump.
Bivalent parallel
The heat pump provides the entire heating energy down to a predetermined outdoor temperature. If the temperature drops below this value, a second heat source switches on to support the heat pump.
There is a distinction to be made here between
alternative operation with oil- or gas heat and
regenerative operations with solar energy or wood-fired heating. This mode is possible for all heating systems.
Layout
A precise calculation of the building's heating load according to EN 12831 is required for the design and dimensioning of a heating system. However, approximate requirements can be determined based on the year of construction and the type of building. The table
approximate specific heating loads for a number of building types. The required heating system output can be calculated by multiplying the area to be heated with the given values
For a precise calculation, various factors must be considered. The transmission-heat requirement, the infiltration heat-loss and an allowance for water heating comprise the total heating output which the heating system must provide.
The total area of the floor surfaces, exterior wall windows, doors and roofing is required in order to determine the transmission heat requirement. In addition, information about the materials used in the building is required, as these lead to extremely varied thermal transmission coefficients (the so called K value). Also required are the room temperature and the standard outdoor temperature, that is, the lowest outdoor-temperature on average that will occur during the year. The equation for calculating the transmission-heat requirement is
Q=A x U x (t
R
-t
A
) and must be calculated separately for all room-enclosure surfaces.
The infiltration heat requirement takes into consideration how often the heated room air is exchanged for cold external air. The room volume
(V), the air exchange frequency (n) and the specific heat capacity (c) of the air is also required in addition to the room temperature and average low temperature. The equation is: Q=V x n x c (t
R
-t
A
).
An approximate allowance for heating water - per person according to VDI 2067: 0.2 kW
Example
A residential home comprised of 150 m² livingspace and a heat requirement of 80 W/m² has been selected for the example design. A total of five persons live in the house. The heat load amount to 11.5 kW. Adding a drinking water allowance of 0.2 kW results in a required heat capacity of 12.5 kW. Depending on the power company, an additional charge must then be made in order to factor in the service time-out period. The rating and determination of the heat pump's balance-point temperature derives graphically from the heat pump's temperature-specification heat-output diagram. (In the example, 35 °C for a floor heatingsystem). Next, the heat load for the standard outdoor temperature (the lowest temperature of the year locally) and the heat threshold are marked on the graph. The outdoor-temperature-dependent heating requirement, simplified here as a straightline relationship between heat-load and the start of the heating season, is recorded in the graph of heat-load curves. The intersection of the two straight lines with the rated heat-load curve is plotted on the X axis, where the balance-point temperature is read. (in the example, ca.-3°C) The least load of the 2nd heat source is the difference between heat load and the heat pump's maximum heat output on these days. (In the example, the capacity necessary to cover peak loads is ca. 3 kW.)
28
Building type
Passive energy house
Low-energy house built in 2002
According to energy conservation order regarding heat insulation
1995
Modern building constructed around 1984
Partially-renovated old building constructed pre-1977
Non-renovated old building constructed pre-1977
Specific heating output in W/m 2
10
40
60
80
100
200
20
18
16
14
Min. performance
2. heat source
Heat load acc.
DIN EN 12831
Heating capacity at a supply temperature of 35°C n.max
Rated frequency 57 Hz
12
n.max
10
8
6
4
Heat load plus warm-water requirements and service time-out period
2
n-min
Heat load
0
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Standard outdoor temperature
Bivalent temperature
Outdoor temperature [°C]
Heating threshold for old building according to VDI 4650
Fig. 27: Heating capacity diagramm of the heat pump WKF/WKF-compact 180
Characteristics of REMKO inverter heat pumps
Outdoor air as a heat source
An air/water heat pump absorbs energy from the outdoor air as its heat source and transmits this to the heating system. They have the following advantages over brine/water and water/water heat pump systems: n Can be used everywhere Air is available everywhere in unlimited quantities. For example, no wells are required.
n No excavation required. No large areas are required for soil collectors.
n Economical. Expensive drilling is not required.
n Excellent value for money and simple installation.
n Particularly suitable for low-energy houses with low inlet temperatures.
n Ideal for bivalent operation, in order to save energy.
29
REMKO WKF / WKF-compact
Split AC unit
The REMKO inverter heat pump is a so called split
AC unit. This means that it consists of an outdoor unit and an indoor unit, both of which are connected via refrigerant-carrying copper pipes. Thus there are no water-carrying pipes laid from the indoors to outdoors which need to be made frost proof. The outdoor unit contains only the condenser, the evaporator and the expansion valve.
This means that the outdoor unit is considerably smaller. The indoor module contains the system's condenser and the connections for the heating network.
specified temperature and turns off when this temperature is reached. This kind of heat regulation is very inefficient. Heat regulation in the Remko inverter heat pump is modulated to the actual need. The electronics system has an integrated frequency-converter which serves to modify the condenser speed and the speed of the blower as required. The condenser works at a higher speed when under full load than under partial load. The lower speeds ensure a longer operational lifetime for the components, improved coefficient of performance and lower noise. Lower speeds also result in lower energy consumption (electricity) and longer service life. I.e.: inverter heat-pumps will run practically throughout the heating season. In all, the highest efficiency possible.
REMKO inverter technology
The heat pump's condenser is equipped with a requirement-dependent speed control system. The power control on conventional heat pumps provides only two states, either ON (full output) or
OFF (no output). The heat pump turns on below a
Conventional
Inverter
Minimal temperature fluctuations mean energy savings
1/3
When it is switched on, the inverter only requires one-third of the time of conventional systems
Fig. 28: Modern inverter technology
Time
30
Thanks to innovative inverter technology, this heat pump will almost always operate by adapting its heating capacity to the actual requirements of the heating season, and will in fact turn itself off when heat is no longer needed. The same applies in the opposite direction with cooling.
Defrost by circulation reversal
At temperatures below about +5°C, humidity freezes in the evaporator (outdoor module) and an ice layer can form which reduces heat transfer from the air to the refrigerant and to the air stream.
This layer of ice must be removed. A four-way valve serves to reverse the refrigerant circuit, so that the hot gas from the compressor flows through the original evaporator and the ice that has formed there can melt. The defrost process is not initiated after a predetermined time; rather it is carried out as required in order to save energy.
Cooling mode
Because of circuit reversal, cooling is also possible. In cooling mode, the components of the refrigeration circuit are used to produce cold water with which heat can be extracted from a building.
This can be accomplished with dynamic cooling or passive cooling.
Under dynamic cooling the refrigerating capacity is actively transferred to the indoor air. This is undertaken by means of water-based REMKO fan convectors. In doing so, it is desirable that the inlet temperatures are under the dewpoint, in order to transfer a higher refrigerating capacity and to dehumidify the indoor air.
Passive cooling refers to the absorption of heat via cooled floors, walls or ceiling surfaces. In doing so, water-carrying pipes make the structural sections into thermically effective heat exchangers. In order to achieve this, the refrigerant temperature has to lie above the dew point, in order to avoid the formation of condensation. Dewpoint monitoring is required for this purpose.
We recommend dynamic cooling with fan convectors, in order to achieve increased thermal performance and in order to dehumidify the air on muggy summer days. The advantage here is that dewpoint monitoring is not required.
The comfort zone in the illustration below shows which values for temperature and humidity are considered comfortable for people. This range should ideally be met when heating or air-conditioning buildings.
uncomfortably humid comfortable still comfortable
10 uncomfortably dry
12 14 16
Fig. 29: Comfort zone
18 20 22 24 26 28 30
Room air temperature in °C
31
REMKO WKF / WKF-compact
3.2 WKF series
We offer two different indoor-unit designs. The wall-mounted WKF series is equipped with a circulation pump and a safety module on the water side.
Furthermore, an electrical auxillary heater can be incorporated as an option. The WKF series was constructed for the addition of several heat sources (bivalent installations or systems with solar-heating equipment). External buffer tank is always required, its size depending on the type and the power of the second heat source. On the one hand, the buffer tank prevents short run-times for the heat pump and on the other hand, that sufficient defrosting energy is available.
It may be dispensed with an external buffer tank when the heat pump acting as the sole heat source. Should a second heat source may be used, a buffer tank is needed.
3.3 WKF-compact series
In addition, the indoor module of the WKF-compact series is fitted with an enamelled 300 L domestic water storage. An auxiliary electric heater 9 kW is available optionally. The hot-water buffer tank has a capacity of 160 litres and is integrated as a hydraulic switch. As a result, the WKF-compact series is the ideal equipment when the heat pump is intended as the sole heat source (single energysource operation). A heating circuit pump must be mounted on site.
Single energy-source operation by REMKO Smart-
Serv or bivalent operation by REMKO Smart-BVT is also to realize. All connections are to be installed on top of the device.
32
4 Installation instructions
4.1 System layout
GRL
VWW
VHZ
IM1
NIM
NZ1
STL
KML
AM1
VEN
IB
AB
NIM
NZ2
KA2
VRH
IM2
STL
KML
AM2
VEN
VEN
NAM
VEN
NAM
KA1
KA1
Fig. 30: System layout WKF/WKF-compact 180
AB:
IB:
Outdoor area
Indoor area
AM1,2: Outdoor module WKF-compact 180, WKF
180
IM1,2: Indoor moduleWKF-compact 180, WKF
180
GRL:
KA1:
KA2:
KML:
NAM:
Common return pipe (DN 25)
Condensate drain AM (must be designed to be frost proof!)
Condensate drain IM
Refrigerant lines
3
/
8
(e.g. 3x2,5 mm
2
)
" and
5
/
8
“
Mains supply AM = 400V / 3~ / 50Hz 20A
NIM:
NZ1:
NZ2:
STL:
Mains supply IM = 230V / 1~ / 50Hz 16A
(e.g. 3x1,5 mm 2 )
Mains cable electric auxiliary heater (e.g.
5x2,5 mm 2 )
Mains cable electric auxiliary heater
(optional), (e.g. 5x2,5 mm
2
)
Control cable (e.g. 2x1mm 2 )
VEN: Fan
VHZ: Inlet for heating (DN 25)
VRH: Hot-water inlet and return pipes (DN 25)
VWW: Inlet pipe for hot-water tank (DN 25)
33
REMKO WKF / WKF-compact
The indoor and outdoor modules have to be connected with refrigerant lines of dimensions
3
/
8
“ (=9,52 mm) and
5
/
8
“ (=15,88 mm). A two-wire control cable has to be laid between the two modules. Both the indoor and outdoor modules require a separate power supply.
NOTICE!
Open refrigerant pipes must be protected against the introduction of moisture by means of suitable caps or adhesive strips Refrigerant pipes may not be kinked or compressed.
Refrigerant pipes may only be cut to length with a suitable pipe cutter (use no hacksaws or the like).
WARNING!
All electric lines are in accordance VDE regulations to dimension and to lay.
DANGER!
All electrical installation work must be done by an electrician.
4.2
General installation instructions
n These instructions are to be observed when installing the entire system.
n The device should be delivered as near as possible to the site of installation in its original packaging in order to avoid transport damage.
n The device is to be checked for visible signs of transport damage. Possible defects must be reported immediately to contract partners and the forwarding agent.
n Suitable sites for installation are to be selected with regard to machinery noise and the set-up process.
n The shut-off valves for the refrigerant lines may only be opened immediately before commissioning of the system.
n The outdoor units are pre-filled with refrigerant up to a distance of 10 meters from the interior component. If the basic length of the refrigerant line exceeds 10 metres, add refrigerant.
n Establish all electrical connections in accordance with the relevant DIN and VDE standards.
n
The electrical power cables must be fastened to the electrical terminals in the proper manner.
Otherwise there is a risk of fire.
n See that neither refrigerant or pipes that carry water pass through living- or sleeping areas.
DANGER!
The installation of refrigerant equipment may be undertaken only by trained specialist personnel!
NOTICE!
Open refrigerant pipes must be protected against the introduction of moisture by means of suitable caps or adhesive strips Refrigerant pipes may not be kinked or compressed.
Refrigerant pipes may only be cut to length with a suitable pipe cutter (use no hacksaws or the like).
DANGER!
All electrical installation work must be done by an electrician.
Wall breakthroughs
n A wall opening of at least 70 mm diameter and
10 mm slope from the inside to the outside must be created.
n To prevent damage, the interior of the wall opening should be padded or, for example, lined with PVC pipe (see figure).
n After installation has been completed, use a suitable sealing compound to close off the wall breakthrough under observation of fire protection regulations (responsibility of customer).
34
1
2
3
Fig. 31: Wall breakthroughs
1: Liquid line
2: Control cable
3: Supply
4: Hot gas line
4
4.3
Installation, mounting indoor module
Indoor module WKF series
n The wall bracket is to be attached to the wall with the fasteners supplied and the indoor module hooked onto it.
n The wall must possess sufficient load-bearing capacity for the weight of the indoor module.
n Ensure that the wall bracket is installed level.
n The indoor module can be aligned precisely by means of the adjustment screws on the back of the housing.
n
The indoor module is to be mounted in such a way that all of the sides have sufficient space for purposes of installation and maintenance. It is equally important that there is sufficient space above the device for installing the safety assembly.
Indoor module WKF-compact series
n The indoor module must be installed on a firm, level surface.
n The surface must possess sufficient loadbearing capacity for the weight of the indoor module.
n The height-adjustable feet can be used to level the indoor module precisely .
n The indoor module is to be mounted in such a way that all of the sides have sufficient space for purposes of installation and maintenance. It is equally important that there is sufficient space above the device for installing the pipes and the safety assembly.
Fig. 33: Floor mounting WKF-compact
WARNING!
Only fasteners suitable for the given application may be used.
Fig. 32: Wall mounting WKF
35
REMKO WKF / WKF-compact
Minimum distances for the indoor modules
1 1
2
3
4
3
2
A B
Fig. 34: Minimum distances for the indoor modules
A: WKF
B: WKF-compact
Value in mm
WKF
WKF-compact
1
500
500
4.4
Installation, mounting outdoor module
Outdoor module installation location
n The device may be attached only to a loadbearing structure or wall. Ensure that the outdoor module is installed only vertically. The installation site should be well ventilated.
n To minimise noise, install floor consoles with vibration dampers and a considerable distance from acoustically-reflective walls to minimise noise.
n The minimum clearances specified on the next page should be maintained when carrying out the installation. These minimum distances serve to ensure unrestricted air intake and exhaust. Additionally, there must be adequate space available for installation, maintenance and repair.
n
If the outdoor module is erected in an area of strong winds, then the device must be pro-
tected against them (Fig. 35). The snow line is to be observed during installation (Fig. 36).
n
The outdoor module must always be installed on vibration dampers. Vibration dampers prevent the transmission of vibrations through the floor or walls.
2
300
300
3
300
300
4
150
--n A heated, condensate tra ensures that condensation from the pan can drain off. Ensure that the condensate is prevented from freezing so that it can drain off (gravel, drainage). The
Water Ecology Act is to be observed.
n If there is insufficient space under the device for the refrigerant lines, then the pre-cut recesses can be removed from the lateral enclosure-panel and the pipes guided through these openings.
n
During installation, add about 20 cm to the expected snow depth to guarantee unimpeded intake and exhaust of outdoor air year round
n
The installation site of the outdoor module should be agreed together with the operator primarily so that operating noise is minimised and not in terms of “short routes”. Thanks to the split-design technology there are a great deal of different installation options with almost identical efficiency available.
36
1
Fig. 36: Protection from snow
1: Snow
1
20 cm
Fig. 35: Protection from wind
1: Wind
NOTICE!
The site for the outdoor unit must be selected so that machinery noise that occurs disturbs neither the residents nor the facility operator.
Observe the TA-noise specifications as well as the table containing the drawings relating to sound pressure levels.
Point of emissions
Industrial areas
Commercial areas
Core areas, village areas and mixed zones
General residential areas and small housing estates
Exclusively residential areas
Spa areas, hospitals and mental institutions
Assessment level in accordance with TA noise days in dB(A) nights in dB(A)
70 70
65
60
55
50
45
50
45
40
35
35
Isolated noise peaks of short duration may not exceed 30 dB(A) during the day and 20 dB(A) at night.
Definition of the Danger Area
WARNING!
Access to the unit is only permitted for authorised and trained persons. If unauthorised persons can approach the danger areas, these areas must be identified with corresponding signs, barriers, etc.
n The external danger area surrounds the equipment up to a distance of 2 m, measured in all directions from the unit housing.
n The external danger area on-site can differ as n a result of the setup. The specialist company performing the installation work bears the responsibility for this.
The internal danger area is located inside the machine and can only be reached with the use of an appropriate tool. Access is prohibited for unauthorised persons!
37
REMKO WKF / WKF-compact
Minimum distances in mm for the outdoor modules WKF/WKF-compact
1 2
3
4 5
6
>= 250
>= 2000
>= 300
>= 600
Fig. 37: Minimum distances for installation of an outdoor module in mm for WKF/WKF-compact
1: Against a wall, free flow air forward, backward flow restriction
2: Against a wall, facing the wall air outlet, flow front restriction
3: Freely between two walls, facing the wall outlet,
Sides: flow restrictions in front and rear
4:
5:
6:
In a niche, free flow air to the front, rear and flow restriction on both sides.
Before a covered wall, free flow air to the front, rear and top of flow restrictions
Before a covered wall, air outlet towards wall, flow restrictions behind and above
1 2
3
4
>= 300 >= 600 >= 600 >= 600
>= 600 >= 600
>= 1500 >= 600 >= 3000 >= 3000 >= 250
Fig. 38: Minimum distances for installation of several outdoor modules in mm for WKF/WKF-compact
1: Against a wall, facing the wall air outlet, flow front restriction
2: In a niche, free flow air to the front, rear and flow restriction on both sides.
3:
4:
Between two walls, facing the wall outlet and other modules, Sides: flow restrictions in front and rear
Between two walls, air outlet towards wall, or the external modules-free: flow restriction in front, rear and internal modules on the sides.
38
Condensate draining and ensured discharge
1
4
100
5 6 5
7
8
2
3
9
10 10
12
11
12
Fig. 39: Condensate-, melt-water drainage and transversely reinforced strip footing (sectional drawing)
1: Outdoor module
2: Leg
3: Condensation catch pan
4: Floor bracket
5: Transversely reinforced strip footing
HxBxD = 300x200x800 mm
6: Gravel layer for seepage
7: Condensate drainage-heating
8: Drainage canal
9: Protection tube for refrigerant pipes and electrical interconnection (temperature resistant up to at least 80 °C)
10: Depth of frost penetration
11: Drainag pipe
12: Soll
NOTICE!
The refrigerant lines must enter the housing from the rear, side or front with the use of the
REMKO OA2 oil separator.
WKF/WKF-compact 120/180
B
5
E
B
5
A D
1
1
8
7
3
F
10
C
C
D
A
B
E
F
Fig. 40: Dimensioning of the transversely reinforced strip footing (Plan view)
Please see the terms 1,3,5,7,8 and 10 the legend
Dimensioning of the strip footing
(all values in mm)
Dim.
WKF/WKFcompact
85
800
200
660
314
460
100
WKF/WKFcompact
120
800
200
600
370
400
100
WKF/WKFcompact
180
800
200
620
350
420
100
Condensate connection
If the temperature falls below the dew point, condensation will form on the finned condenser during
heating operation.
A condensate drip pan should be installed on the underside of the unit to drain any condensate.
n The condensate drain pipe to be installed onsite must be installed with a in cline of at least
2 % for good drainage. If necessary, fit vapour density insulation.
n When operating the system at outdoor temperatures below 4 °C, care must be taken that the condensate line is frost protected. The lower part of the housing and condensate pan are to be kept frost free in order to ensure permanent drainage of the condensate. If necessary, fit supplementary pipe heating.
n
After completed installation, check that the condensate drainage is unobstructed and ensure that the line is leak tight.
39
REMKO WKF / WKF-compact
Ensured discharge in the event of leakage
With the REMKO oil separator OA 2.2, the below listed requirements of local regulations and laws are met.
5 Hydraulic connection
A separate interpretation of nominal flow rate must be made for every system (see technical data).
NOTICE!
Local regulations or environmental laws, for example the German Water Resource Law
(WHG), can require suitable precautions to protect against uncontrolled draining in case of leakage to provide for safe disposal of escaping refrigerator oil or hazardous media.
NOTICE!
With the connection of an external drain line to the oil separator, it must be kept frost-free.
n We recommend installing a buffer storage unit as a hydraulic switch for hydraulically isolation of the heating circuit.
n Make a pipe-network calculation before installing the heat pump. After installing the heat pump, it is necessary to perform a hydraulic balancing of the heating circuit.
n Protect floor heating systems against excessively high inlet temperatures.
n Do not reduce pipe diameters for the supply and return connections to the heat pump before connecting a buffer tank-unit.
n Plan for air bleed valves and drain-off taps at appropriate places.
n Flush the the system's entire pipe network before connecting the heat pump.
n One or, where necessary, several expansion tanks must be designed for the entire hydraulic system.
n The system pressure of the entire pipe network is to be matched to the hydraulic system and must be checked when the heat pump is turned off. Also update the static-pressure form supplied with the heat pump.
n As delivered, the safety assembly consists of a manometer, air bleeder and safety valve. It is to be mounted to the pipe connection provided on the indoor unit.
1
2
3
4
Fig. 41: Safety assembly (similar image)
1: Manometer
2: Automatic bleeder
3: Safety valve
4: Indoor unit
40
n The heat pump requires a constant, minimum standing-water volume of ca. 10 litres per kW of heating output to guarantee power for defrosting and to assure a minimum running time. Buffer storage unit.
n The stop cocks supplied are to be positioned directly at the connections for the heat pump for the heater circuit inlet and return lines. The shut-off valves each contain a thermometer.
n The dirt traps must be checked during every service of the system.
n Additionally, a hand-operated bleeder is installed on the heat pump for additional bleeding.
n All visible metallic surfaces must be additionally insulated.
n Cooling mode via the heating circuit requires a completely vapour diffusion tight insulation along the entire length of the pipework.
n All outgoing heating circuits, including the connections for water heating, are to be secured against circulating water by means of check valves.
n Before being placed in service, the system must be thoroughly flushed. Conduct a seal test and perform a thorough bleeding of both the indoor unit and the entire system - repeatedly, if necessary.
Fig. 42: Shut-off valves
Actual schemas for hydraulic integration can be found on the internet at www.remko.de
Turning the thermometer heads serves to close or open the stop valves! The dial be brought into the desired position.
n Install the dirt traps delivered with the unit outside the heat pump in the return line. Ensure that the dirt trap remains accessible for inspection.
n Be sure to position one gate valve upstream and another downstream of the dirt traps. This ensures that the dirt traps can be checked at any time without loosing water.
41
REMKO WKF / WKF-compact
WKF hydraulic diagram
Functions: heating or cooling and hot water, operating mode: monoenergetic
This hydraulic diagram serves merely to assist in planning activities; the hydraulic system on site must be planned and laid out by the installer!
B
A
WW
KK FB
B
AB
A
C
ZK
KW
AB
A
B
Fig. 43: WKF example hydraulic diagram
A:
B:
C:
FB:
Outdoor module
Indoor moduleWKF
Storage tank
Floor heating cycle
KK: Cooling cycle
KW: Cold water
WW: Warm water
ZK: Circulation
WKF heat pump modules are used in systems with existing storage tank systems. Their applications are varied and they can be ordered in a range of different equipment variants. For example, external drinking water storage tanks with a min. HE surface area of 3.0m² can be used.
The Remko drinking water storage tank, type EWS 300 is an enamelled drinking water storage tank with a
HE surface area of 3.5m². The additionally necessitated three-way changeover valve is switched over by the
Smart Control to provide HW. In a bivalent alternative application, the boiler can be connected directly to the indoor unit (bivalent variant).
The highly efficient primary pump in the indoor unit can be used as a circulation pump heating cycle and its speed is regulated according to requirements. A pressure loss of max. 80 kPa is made available by the customer. If the pressure losses on site exceed this, a separate storage tank, e.g. Remko KPS 300 must be used as a hydraulic compensator. Then a Remko heating cycle group unmixed, type HGU, and a mixed heating cycle group, type HGM, are available.
42
WKF-compact hydraulic diagram
Functions: heating or cooling and hot water, operating mode: monoenergetic
This hydraulic diagram serves merely to assist in planning activities; the hydraulic system on site must be planned and laid out by the installer!
KW ZK WW KK
FB
B
A
AB
A
B
Fig. 44: WKF-compact example hydraulic diagram
A:
B:
Outdoor module
Indoor module WKF-compact
FB: Floor heating cycle
KK: Cooling cycle
KW:
WW:
ZK:
Cold water
Warm water
Circulation
WKF compact heat pump models are ideal for use in new construction, where the heat pump is the sole heat generator. In an emergency, an electr. auxiliary heater (monoenergetic variant) can be switched on by the
Smart Control.
The Remko drinking water storage tank, type WKT 300 is an enamelled drinking water storage tank with a
HE surface area of 3.5m², which is integrated into the bottom housing. The additionally necessitated threeway changeover valve is switched over by the Smart Control to provide HW, and is also part of the indoor unit. In a bivalent alternative application, the boiler can be connected directly to the indoor unit (bivalent variant). In the bivalent variant, the changeover valve required for this is also part of indoor unit.
The highly efficient primary pump in the indoor unit can be used as a circulation pump heating cycle and its speed is regulated according to requirements. A pressure loss of max. 80 kPa is made available by the customer. If the pressure losses on site exceed this, a separate storage tank, e.g. Remko KPS 300 must be used as a hydraulic compensator. Then a Remko heating cycle group unmixed, type HGU, and a mixed heating cycle group, type HGM, are available. Moreover, the hot water connections, cold water supply, and circulation are all connected to the indoor unit on the top.
43
REMKO WKF / WKF-compact
6
Cooling of the Heat
Pump
Description of the Cooling Installation
Cooling via floor heating cycle
(surface heating cycle)
If the series WKF heat pump is to be used for cooling, then this must be possible via the floor heating cycle. The hydraulic connection is identical to the connection for the heating cycle. If the circuit is used for heating and cooling, it will be connected as presented in the hydraulic circuit diagrams on pages
Ä ‘ WKF hydraulic diagram’ on page 42 and
Ä ‘ WKF-compact hydraulic diagram’ on page 43.
The sensors S12 and S11 measure the inlet and return temperatures.
Cooling via a separate cooling circuit
If a separate cooling circuit should be used with the system in addition to the heating cycles, then a changeover valve (A14) must be installed in the inlet pipe, which is activated with 230 V. This is attached to the controller on A14. In cooling mode, the valve is switched to the cooling circuit AB/A. If no cooling mode is operated, the valve is de-energised at AB/B heating cycle.
It is also recommended to install a 230 V dewpoint monitor with the associated pipe temperature sensors to the feed pipes outside the heat pump. The location should be selected so that it does not favour the temperature falling below the dewpoint.
The dewpoint monitor is wired so that it divides the connector in the feed line to the utility company switch to the controller (input S16) in order to switch of the heat pump.
Cooling without installed cable remote control in the room
If no additional remote control apart from the heat pump is to be installed in the room, the regulation of the minimum inlet temperature is via the outside temperature minus 6 K. It is then essential to mount an additional 230 V dewpoint monitor with associated pipe temperature sensors on the inlet pipes. The location should be selected so that it does not favour the temperature falling below the dewpoint. The dewpoint monitor is wired so that it divides the connector in the feed line to the utility company switch to the controller (input S16) in order to switch of the heat pump.
Cooling via a parallel buffer tank as system boundary
If the system is to be operated with a parallel buffer tank, which acts as system boundary to the consumer circuit, then there is no need to mounted a remote control in the living room, if the regulation of the consuming cooling circuit is operated via an external controller.
Dewpoint control via the Smart Control cable remote control
If the series WKF heat pump is to be used to implement a cooling function, the Smart Control cable remote control must be installed in the selected reference room (e.g. living room). It is recommended that it is mounted on the wall. It must thereby ensured that the room air can freely flow over the remote control. The remote control measures the room temperature and room humidity.
From these it calculates the nominal dewpoint and correspondingly adjusts the cooling water temperature with a sufficient safety margin so that the temperature on the activated room surface as well as the exposed pipes does not fall below the dewpoint.
CAUTION!
The water temperature in the pipes is maintained above the nominal dewpoint temperature by the controller, in order to prevent the formation of condensation on the exposed pipes as well as those concealed under the plaster.
Cooling via setpoint
If no additional remote control is installed in the room, the cooling system can be operate at a setpoint that is above the dewpoint.
44
7 Corrosion protection
Oxygen always plays a role if metal materials in a heating system corrode. pH values and the salt content also play a major role. The challenge: A licenced plumber who would like to be able to guarantee his customers a hot water heating system not at risk of corrosion from oxygen - without the use of chemicals - must pay attention to the following: n
Correct system design by the heating contractor/planner and n subject to the installed materials: filling the heating system with demineralised softwater or fully deionised water, checking the pH value after 8 to 12 weeks.
See the following table for the requirements in accordance with VDI 2035 Part 1 with regard to total hardness.
Overall output in kW to 50 kW
Total hardness [°dH] subject to the specific system volume
<20 l/kW
£16,8 °dH
³20 l/kW and <50 l/kW
£11,2 °dH
³50 l/kW
£0,11 °dH
The following table provides the allowed oxygen content in connection with the salt content.
Reference values for the hot water in accordance with VDI 2035 Part 2
Electrical conductivity at 25°C
μS/cm low-salt
< 100 salline
100-1500
Oxygen content pH value at 25°C
mg/l < 0,1
8,2 - 10,0 *)
< 0,02
*) For aluminium and aluminium alloys the pH value range is limited: the pH value at 25°C is 8.2-8.5 (max.
9.0 for aluminium alloys)
In low-salt water and the correct pH for a short time even to oxygen concentrations up 0.5 mg / l are tolerated.
Water treatment with chemicals
Adding chemicals to treat water should only be done as an exception. VDI 2035 Part 2 requires explicitly under Point 8.4.1 that all water treatment be explained and documented in the system log book. This has reasons: n The improper use of chemicals often leads to the failure of elastomer materials n To blockages and deposits because of sludge formation n To defective floating seals in pumps n To the formation of biofilm which can cause microbial influenced corrosion or significantly impair heat transfer.
45
REMKO WKF / WKF-compact
8
Connection of refrigerant lines
8.1 Connection of refrigerant lines
n The outdoor- and the indoor units are connected with two copper pipes of refrigerator quality having the dimensions 3/8" = 9,52 mm and 5/8" = 15,88 mm (REMKO special accessory).
n
Observe the permitted bending radius for the refrigerant pipes during installation in order to prevent kinks. Never bend a pipe twice in the same place in order to prevent embrittlement or crack formation.
n Assure suitable fastening and insulation when laying the refrigerant pipes.
n The copper pipes are to be flared to make the connections to the units. In doing so, check that the flare has the correct shape and suit-
able union nuts. (Fig. 45 to Fig. 47).
Fig. 46: Flanging the refrigerant line
1: Flanging tool
1
1
2
Fig. 45: Deburring the refrigerant line
1: Refrigerant line
2: Deburrer
Fig. 47: Correct flange shape
Copper piping Outside diameterer
3/8" = 9,52 mm
5/8" = 15,88 mm
Flare dimensions ø A
12,4 - 12,8 mm
21,9 - 22,3 mm
46
Connection to the unit
n Remove the cover panel from the outdoor unit if necessary. It may be necessary to remove the pre-cut bushings.
n Take off the factory-fitted protective caps. You can use the union nuts for additional mounting.
Make sure to slide the union nuts onto the pipe before it is flared.
n Make connections to the device by hand initially, in order to ensure a good fit. Later, tighten the joints with two open-end wrenches
Use one wrench to resist the rotation of the
NOTICE!
Use only tools which are approved for use in an HVAC environment. (z. B.: bending pliers, pipe/tubing cutters, de-burrers and flaring tools). Do not cut refrigerant pipes with a saw.
NOTICE!
All work must be carried out in a way that prevents dirt, particles, water etc. from entering, refrigerant lines!
1
2
Fig. 48: Tighten fittings
1: Tighten 1st Spanner
2: Counter 2nd Spanner
Copper piping Outside diameter
3/8" = 9,52 mm
5/8" = 15,88 mm
Tightening torque
32 - 40 Nm
65 - 75 Nm n
The installed refrigerant pipes, including the flare connections, must be provided with suitable insulation.
n Special measures need not be taken for the return of the compressor oil.
Outdoor units may be delivered with nuts suitable for joining flanges.
8.2
Commissioning the refrigeration system
Leak testing
Once all the connections have been made, the pressure gauge station is attached to the Schrader valve as follows (if fitted): blue = large valve = suction pressure
Once the connection has been made successfully, the leak test is carried out with dry nitrogen. The leak test involves spraying a leak detection spray onto the connections. If bubbles are visible, the connections have not been made properly. In that case, tighten the connection or, if necessary, create a new flange.
Pumping down to vacuum
After completing a successful leak test, the excess pressure in the refrigerant pipes is removed and a vacuum pump with an absolute final partial pressure of min. 10 mbar is used to remove all of the air and empty the pipes. Any moisture present in the pipes will also be removed.
NOTICE!
A vacuum of at least 10 mbar must be produced!
47
REMKO WKF / WKF-compact
The time required to generate the vacuum is dependent on the final pressure pipe volume of the indoor units and the length of the refrigerant pipes.
This always takes at least 60 minutes. Once any foreign gases and humidity have been completely extracted from the system, the valves on the pressure gauge station are closed and the valves on the outdoor component are opened as described in the "Commissioning" section.
Commissioning
NOTICE!
Commissioning should only be performed and documented by specially trained personnel.
Observe the operating manual for the indoor units and outdoor components when commissioning the entire system.
Function test of heating operating mode
1.
Remove the protective caps from the valves.
2.
Start the commissioning procedure by briefly opening the shut-off valves on the outdoor component until the pressure gauge indicates a pressure of approx. 2 bar.
3.
Check all connections for leaks with leak detection spray and suitable leak detectors. If no leaks are found, fully open the shut-off valves by turning them anti-clockwise using a spanner. If leaks are found, draw off the refrigerant and rework the defective connection. It is imperative that the vacuum creation and drying steps are repeated!
4.
Activate the main circuit breaker or fuse (to be provided by the customer).
5.
Program the heat pump manager.
6.
Switching on heating mode
Once all components have been connected and checked, the system can be commissioned. To ensure the proper functioning of the units, a functional check must be performed prior to handover to the operator in order to detect any operational irregularities. This check is dependent on the installed indoor units. The processes are specified in the operating manual for the indoor units being commissioned.
Due to the switch on delay, the compressor will start up a few minutes later.
7.
Check the correct function and settings of all regulation, control and safety devices during the test run.
8.
Measure all cooling data and record the measured values in the commissioning report.
9.
Remove the pressure gauge.
Functional checks and test run
Check the following points: n Leak-tightness of the refrigerant pipes.
n Compressor and fan running smoothly.
n Function test of the indoor units and all program sequences.
n Check of the surface temperature of the suction pipe and that the vaporiser is not overheating. To measure the temperature, hold the thermometer to the suction pipe and subtract the boiling point temperature reading on the pressure gauge from the measured temperature.
n Record the measured temperatures in the commissioning report.
Final tasks
n Use the heat pump manager to set the target temperature to the required value.
n Re-install all disassembled parts.
n Instruct the operator on how to use the units.
NOTICE!
Check that the shut-off valves and valve caps are tight after carrying out any work on the cooling cycle. Use appropriate sealant products as necessary.
48
Adding refrigerant
DANGER!
The connection of refrigerant pipes and the handling of refrigerant may be only be carried out by qualified personnel (competence category I).
DANGER!
Only refrigerant in a liquid state may be used to fill the cooling cycle!
CAUTION!
Danger of injury from refrigerant!
Refrigerant degreases the skin on contact and may cause cold burns.
Therefore:
- Wear chemical-resistant protective gloves when undertaking any work involving refrigerants.
-Safety glasses must be worn to protect the eyes.
Basic pipe length
Up to and incl.
10 m
10 m to max. 50 m per circuit
10 m to max. 75 m per circuit
Additional fill quantity
WKF/
WKFcompact 85
WKF/
WKFcompact
120
WKF/
WKFcompact
180
0 g/m 0 g/m 0 g/m
30 g/m
---
50 g/m
---
---
50 g/m
Examples
Basic pipe length
10 m
15 m
20 m
25 m
Additional fill quantity
WKF/
WKFcompact 85
WKF/
WKFcompact
120
WKF/
WKFcompact
180
0 g
150 g
300 g
450 g
0 g
250 g
500 g
750 g
0 g
250 g
500 g
750 g
NOTICE!
Check the overheating to determine the refrigerant fill quantity.
n The outdoor unit is pre-filled with refrigerant sufficient for a length of ordinary pipe up to 10 metres.
n If the length of any of the pipelines exceeds 10 metres, then an additional filling for each metres of pipe length (basic length) is required.
NOTICE!
The escape of refrigerant contributes to climatic change. In the event of escape, refrigerant with a low greenhouse potential has a lesser impact on global warming than those with a high greenhouse potential. This device contains refrigerant with a greenhouse potential of 1975. That means the escape of 1 kg of this refrigerant has an effect on global warming that is 1975 times greater than 1 kg CO 2 , based on 100 years. Do not conduct any work on the refrigerant circuit or dismantle the device - always enlist the help of qualified experts.
49
REMKO WKF / WKF-compact
9 Elektrical connection
9.1 General notes
n It is necessary to lay a power-supply cable both to the outdoor unit and, separately, to the indoor unit.
n
Power to the indoor unit may not be disconnected by the power company (frost protection).
n All indoor modules require a single-phase power supply at 230 V / 50 Hz.
The outdoor modules series WKF/WKF-compact 85/120 require a single-phase power supply at 230 V / 50 Hz and the outdoor modules series WKF/WKF-compact 180 require a three-phase power supply at 400 V / 50 Hz.
n
The electrical connection between outdoorand indoor units is made using two-wire control cable.
n Where applicable, a separate three-phase power supply 400 V / 50 Hz shall be provided to the indoor unit for electric booster heating.
n
The Smart-Control needs to know whether a power-company release- or off-period is in effect. An electrically-isolated switch must be installed for this purpose (an closed switch signifies power available, an open switch, offtime).
n In the chapter "Connection diagram, terminal configuration" in this manual can be found a connection schematic along with corresponding circuit diagrams.
n Special rates for heat pumps may be offered by the power company (PSC).
n Ask your local power company about the details of any rates that might be available.
DANGER!
All electrical installation work must be done by an electrician.
WARNING!
Always note the currently applicable VDE guidelines and the notes in TAB 2007. The size and type of the fuse are to be taken from the technical data.
WARNING!
All cable sizes are to be selected according to
VDE 0100. Special attention should be given to cable lengths, cable type and the kind of installation. The information in the connection diagram and in the system overview are to be seen as an acceptable installation possibility only in a standard case!
NOTICE!
Make sure to connect the outdoor unit neutral connector properly, otherwise the varistors on the line-filter circuit board will be destroyed.
Check all plugged and clamped terminals to verify that they are seated correctly and make permanent contact. Tighten as required.
9.2
Electrical connection - indoor module
The following instructions describe the electrical connection of the WKF and WKF-compact series indoor modules. Shown here is the connection for the WKF series.
1.
Remove the cover of the top of keeping it up push and pull forward from the rear groove.
2.
Thread the power cable of the indoor module
- as well as the control cable between the indoor- and outdoor modules and the cables for external devices and sensors - though the cable openings into the indoor module. Note that the cable openings in the WKF-compact
120 series are located above rather than below.
3.
Connect the power supply of the indoor module to the terminal blocks.
4.
Connect all the secondary consumers (HGM,
HGU, changeover valvs etc.) at the I / O module.
50
NOTICE!
Attach cables in accordance with the connection schematic and/or the circuit diagram in the control box.
9.3
Electrical connection - outdoor module
n For the electrical connection loose the right side cover by loosening the screws.
1
NOTICE!
Ensure correct polarity when connecting the electrical leads, especially the control cable.
The number of lines and the sensors is dependent on the configuration of the heating system and the components.
Make sure to use enough cable when installing the indoor unit so that the control box can be fully lowered for future maintenance.
Fig. 49: Series WKF/WKF-compact 85/120 -
Remove the right side cover by loosening the screws.
1: screw
1
At the site, avoid adding cable inlets.
1
Fig. 50: Series WKF/WKF-compact 180 - Remove the cover by loosening the screws.
1: screw n Electrical protection for the system is implemented in accordance with the information in the technical data. Observe the required conductor cross-sections!
n All cables must be connected with the correct polarity and strain relief.
n Follow the connection schematic and the circuit diagram.
n Connect the two-wire control cable to terminals
F1, F2 and the earth terminal.
51
REMKO WKF / WKF-compact
n When connecting the control cable, make sure that polarity is correct.
n If the outdoor module is installed on a roof, it and the supporting structure must be earthed separately. (Connection to a lightning rod or a concrete-footing earth electrode) n In the seriesWKF/WKF-compact 180 it must be ensured that only the terminals L1(R), L2(S),
L3(T) and N are connected. (see Fig. 53).
1
2
1
3
Fig. 51: Connection terminals - outdoor module
WKF/WKF-compact 85
1: Display
2: Power supply 230V/1~ /50Hz
3: Control cable F1/F2
Fig. 53: Connection terminals - outdoor module
WKF/WKF-compact 180
NOTICE!
Make sure to connect the outdoor unit neutral connector properly, otherwise the varistors on the line-filter circuit board will be destroyed.
Temperature sensors
n The number of sensors required can vary with the type of system.
n Observe the pertinent notes for the sensor position found in the hydraulic schematic.
n The standard model includes an external sensor (S10), a submersible sensor (intended for use as a custom hot-water sensor (S08) and a sensor for a total inlet at the indoor module.
n When connecting solar panels, the PT-1000 sensor (S01) as a collector sensor and a
PT-1000 sensor (S02) as a lower storage tank sensor must be used.
n All sensors are to be connected to the indoormodule switching-cabinet according to the terminal-assignment diagram.
Fig. 52: Connection terminals - outdoor module
WKF/WKF-compact 120
1: Power supply 230V/1~ /50Hz
52
Contact sensor
Contact sensors can be mounted on the pipes, to measure the heating-circuit temperatures, for example.
n The contact sensor is fastened to a pipe with the trapezoidal brackets and retaining strap provided.
n Clean the mounting point on the pipe. Subsequently a thermal compound (A) is applied and the sensor is fixed in position.
External sensor
The connection of an outdoor sensor is always required for the heat pump manager.
n Mount the outdoor sensor pointing skyward, in a north-easterly direction, about 2.5 metres above the ground. It may not be subjected to direct sunlight and is to be protected against excessive wind. Installation above windows or air ducts is to be avoided.
n In order to carry out the installation, remove the cover and secure the sensor with the screws provided.
n A cable with wire cross-sections of 0.5 mm² is recommended for connecting the sensor.
Fig. 54: Fixation of the contact sensor
If the sensor cables are too short, they can be extended up to a maximum of 100m with wire having a cross-section of 1.5 mm².
Fig. 55: External sensor
53
REMKO WKF / WKF-compact
9.4 Structure electrical connection
I/0 module, upper terminal block
Cable cross-sections corresponding to the supplied connection cable! Place the load lines separatly from the measure lines!
A
B
Fig. 56: Structure electrical connection, I/0 module, upper terminal block
A: Probe medium flow rate (without window)
B: Probe medium flow rate (with window)
C: Utility disable bauseits
NOTICE!
If no utility blocking contactor is present, then at the terminal point S16 must a bridge made
(contact open = utility disable).
54
C
9.5 Terminal assignment / legend
Terminal assignment
S29
A02
A03
A04
S25
S26
S27
S28
S21
S22
S23
S24
S14
S15
S16
S20
A10
A11
A12
S10
S11
S12
S13
S06
S07
S08
S09
S02
S03
S04
S05
Terminal
PW
PP
S01
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Input
X
X
X
X
X
X
X
X
Output
X
Signal Connection layout
Power supply I/O 230V
Power supply primary pump indoor module
Probe solar collector
Probe solar upper storage tank
Probe solar inlet WMZ solar
Probe solar return WMZ solar
Circulation return temp./Impuls
Not connected
Solar / pool / 2 storage tank
Storage tank domestic water
Unregulated 3. heat generator middle storage tank
External sensor
Heating cycle 2 mixer circuit return
Heating cycle 2 mixer circuit VL
Heat pump inlet
Without function
Heat pump return
EVU contact (opener) / dew point control (external)
General alarm signal outdoor module
Operation compressor
Operation defrost
Ultrasonic flow rate meter solar, impulse rate
Ultrasonic flow rate meter heat pump, impulse rate
Heat pump electricity meter S0
Household electricity S0
Gas meter S0
PV yield electricity meter S0
PV power suplly electricity meter S0
Pump heating cycle floor (230 V)
Pump heating cycle radiator (230 V)
Circulation pump
Changeover valve domestic water
Changeover valve 2. heat generator
Changeover valve solar / 2. storage tank pool
55
A32
A33
A34
A40
A41
A42
A43
A44
A45
A21
A22
A23
A24
Terminal
A13
A14
A20
A25
A30
A31
B1
A1
+12 Volt
GND
B2 / A2
B3 / A2
R
A46
MI
MO
CLK nSS
GND
OT 1 (2x)
OT 2 (2x)
Input
X
X
X
X
X
X
X
Output
X
X
X
X
X
X
REMKO WKF / WKF-compact
X
X
X
X
Signal Connection layout
Not connected
Changeover valve / pump cooling
HK2 mixer open
HK2 mixer closed
Bypass mixer open
Bypass mixer closed
Changeover valve solar heating (open)
Changeover valve solar heating (close)
Heat pump emergency stop (outdoor module)
Heat pump heating / cooling (operating mode)
Enable 2. heating generator auxillary heater or vessel
Enable compressor
Without function
Speed specification solar pump PWM
Speed specification heating cycle floor (0-10V)
X
X
X
Speed specification heating cycle radiator-10V)
Speed specification primary pump indoor module
0-10V
Setpoint specification outdoor module 0-10V
Speed specification pump heating cycle floor (secondery circuit / system separation)
Not connected
KNX bus
Opentherm 2 heating generator Interface
Not connected
Operating module
RS 485_2
RS 485_3
RC coding resistor, WKF 85/120/180
56
9.6 Circuit diagrams
2
1 g lin nab r e sso pre Com
2
1
2
1
6
5
4
3
2
1 w
Probe liquid
Probe inlet
0-10V specifications eturn flo Probe r ooling specifications ormer
Heating/C er suply transf er suply
~ 15V
2
3
1
230V Pow
1
2
230V Pow
1
2
57
REMKO WKF / WKF-compact
ws br rt rt
V C C
58 bl br gnge bl br
4
3
2
1 bl rt
59
REMKO WKF / WKF-compact
bl bl bl rt bl bl br bl sw gr ws ws rt ws rt ws rt ws rt ws rt ws rt
60
bl rt
2
1 ws rt ws rt ws rt ws rt
-Floor heater
61
REMKO WKF / WKF-compact
bl br gnge bl br gnge e gng bl br e gng bl br br ws e bl br gng br ws e bl br gng br ws e gng bl br
62
rt rt bl bl sw sw bl rt rt rt bl bl sw sw
2
1
HZG
63
REMKO WKF / WKF-compact
sw bl br sw bl br
64 br bl sw br bl sw
65
REMKO WKF / WKF-compact
66 bl sw br gr gnge
1 9 2 9 3 9 bl br gnge
HZG
Legend for circuit diagrams
Color codes: bl: br: gr: rt: sw: ws:
Other abbreviations:
EVU:
FBH:
HK:
HZG:
PP:
PV:
RL:
Str.Zä.Hh
blue brown gray red black white
St.Ltg.:
UV:
VL:
WE:
WP:
WW:
Utility
Floor heater
Heating cycle
Heating
Primary pump
Photovoltaics
Return flow
Electricity meter in the household
Control line
Change over valve
Inlet
Heat generator
Heat pump
Warm water
10
10.1
Commissioning
Control panel and information on commissioning
The Smart Control is used to operate and control the entire heating system. The Smart Control is operated from the operating unit. The operating unit is positioned on the basic device.
n The unit is pre-installed at the factory. After a reset of the Smart Control, the default parameters are loaded.
n
An intensive visual inspection is to be carried out before the actual commissioning.
n
Switch on the power supply.
n The following screen appears on the Smart
Control display:
Fig. 57: Home screen after switching on the Smart
Control
n Then the preinstalled data is loaded and the parameters can be set with the help of the commissioning wizard. You can find information on this in the separate operating instructions of the Smart Control.
NOTICE!
Before commissioning the domestic water storage will be filled.
67
REMKO WKF / WKF-compact
Overview of the controls
1
2
3
4
5
2
4
6
7
Function of the keys
The softkeys underneath the display fulfil different functions. The current function (e.g. Cancel, OK or
Edit) appears on the display, right above the respective key. If nothing is shown on the display above a softkey, this key does not have a function assigned in the currently active mode.
The softkeys and rotary knob are also used for navigation purposes. By pressing the right softkey and turning the rotary knob, you can select the menu items, allowing you to go deeper into the menu structure. Pressing the left softkey multiple times takes you back to the home screen (3D house icon).
Pressing the Info key (6) delivers information and support at any time on the area currently selected.
Pressing the Menu key (7) takes you to the main menu.
The rotary knob (5) allows you move through the menu. In addition, after selecting a parameter, the
rotary knob can be used to modify the value.
Fig. 58: Control elements of the Smart-Control
1: SD-card
2: Movement indicator
3: Display
4: Softkeys
5: Rotary knob
6: Info key
7: Menu key
5
6
7
Fig. 59: Function of the keys
68
11
Care and maintenance
Regular care and maintenance serves to ensure trouble-free operation and long service-life of the heat pump system.
Care
n
The indoor and outdoor units must be kept free of soiling, vegetation and other deposits.
n
The device is to be cleaned with a damp cloth.
In doing so, it is to be ensured that no caustic, abrasive or solvent-based cleaning products are used. Use of powerful water jets is to be avoided.
n The fins on the outdoor unit are to be cleaned at least once a year.
Maintenance
n
To perform the possibly statutory seal test, it is necessary to arrange an annual maintenance contract with an appropriate specialist firm.
12 Temporary shut-down
The system may not be switched off at the mains power supply even if the heating system is not used for heating purposes over an extended period
(e.g. holidays)!
n
The system is to be switched to "Stand-by" mode during temporary shut-down periods.
n
Heating phases can be programmed for the duration of the period of absence.
n
The previous operating mode has to be switched back on when the shut-down phase is over.
n Instructions for changing the mode appear in the corresponding chapter of the Smart-Control manual.
NOTICE!
In "Standby" , the heat pump is in standby mode. Of the entire system, only the frost-protection function s activated.
NOTICE!
As the refrigerant capacity exceeds 3 kg, an annual seal inspection must be made of the refrigerant circuit by a firm specializing in this field. A heating system should always be serviced annually. Therefore, we recommend arranging for a service contract that includes the seal inspection.
69
REMKO WKF / WKF-compact
13 Troubleshooting and customer service
13.1 Troubleshooting and customer service
The unit has been manufactured using state-of-the-art production methods and tested several times to ensure its correct function. However, in the event that malfunctions should occur, the device should be checked against the following list. Please inform your dealer if the unit is still not working correctly after all of the functional checks have been performed.
Fault
The heat pump does not start or switches itself off
Heat circuit pump fails to switch off
Heat circuit pumps fail to switch on
Red indicator lamp
Possible causes
Power outage, under-voltage
Defective mains fuse Master switch off Exchange mains fuse, master switch on
Damaged mains cable Repair by specialist firm
Power company off-period Wait until the power-company offperiod is over and the heat pump starts up as required
Observe temperature ranges Operational temperature limits too low or too high
Set-point temperature exceeded Incorrect mode
The set-point temperature has to be higher than the heat-source temperature, check mode
Disconnect the outdoor module, then establish the correct clamp order using the connection plan Re-establish voltage to the outdoor module. Also make sure that the protective earth is connected correctly.
Incorrect pump switching
Remedial measures
Check the voltage and, if necessary, wait for it to come back on
Incorrect mode set
Control PCB fuse in indoor module switching cabinet faulty
Incorrect heating program set
Arrange to have pump switching checked in "heating circuit" expert level
Check mode
Exchange the fuse on the left side of the control PCB
Check heating program We recommend the operating mode "heat" in the cold heating season
Observe temperature ranges Temperature overlapping, e.g. external temperature greater than room temperature
Failure outdoor module Contact customer service
70
Outdoor module error display
1
1
A
Fig. 60: Displays on outdoor modules
A: WKF/WKF-compact 85
B: WKF/WKF-compact 120/180
1: Display
B
404
416
419
425
203
221
231
251
320
403
461
462
463
464
440
441
443
458
Displayanzeige
101
162
201
202 l l l l l l l l l l l l l m m l l
Z
red
LED Display green yellow
l l
Z
Z m m
Board Meaning
IM, AM F1/F2 twisted
IM EEPROM fault
IM, AM Ccommunication error boards. Wrong Com Kit board l l m l
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z m
Z
Z
Z m
Z m m m m m m m m m m m m l m m m m
AM 1 Min. no communication between HP- and IN-board
AM Error in the external temperature sensor
AM Error heat exchanger sensor
AM Error hot gas temperature sensor
AM Error Overload protection sensor
AM Icing protection compressor (only cooling mode)
AM
Security operation after overload of the compressor
(Normaly operation)
AM Compressor overheated
AM Fault elec. expansion valve
AM
Fault phase error. One external conductor lacks
(only WKF 180)
AM Error BLDC-fan 1
AM Error BLDC-fan 2
AM Error gas leakage (before operation)
AM Error compressor start
AM Compressor board
AM Current consumption too high
AM Overheat protection (OLP) compressor triggered
AM Current consumption IPM too high inverter board
71
REMKO WKF / WKF-compact
Displayanzeige
465
466
467
468
607
901
902
903
554
601
602
604
904
906
911
912
475
484
485
500
469
470
471
474
red
LED Display green yellow
m
Z l l l
-
l
-
-
-
l
-
-
Z l m l l l l l
Z l l m
Z
Z
Z
Z
Z m
Z
Z
Z
Z
Z
Z
-
-
-
-
-
-
-
-
Z
Z m l
Z m m m m l l m m m m m
-
-
-
-
-
-
-
m
Board Meaning
AM Current consumption compressor too high
AM Fault power suplly AC / DC
AM
Fault phase error
One external conductor lacks on compressor
AM
AM Fault power suplly sensor (main board)
AM Fault EEPROM (read error)
AM Fault software EEPROM main board
AM Fault IPM (IGBT module)
AM Fault BLDC-fan 2
AM Fault PFC overload (inverter board)
AM Fault total power consumption
AM Fault overheating inverter board
AM Fault quantity of refrigerant
-
-
-
-
-
-
-
Fault current consumption sensor main board/inverter board
Not connected
Not connected
Not connected
Not connected
AM Fault return sensor
AM Fault inlet sensor
Not connected
Not connected
AM Fault iquid pipe sensor
Not connected
Not connected l = on / Z = flashed / m = off / IM = indoor module / AM = outdoor module
72
13.2 Emergency-heat operation
Should you experience faults with the Smart Control or with the outdoor module during operation of your heat pump system, it is possible to activate a manual emergency-heat operation. To do so, the electric heating coil, internal primary pump, and if necessary the circulation pumps heating cycle must be switched on manually.
To activate emergency-heat operation if the Smart
Control fails, proceed as follows:
1.
Remove the top front panel.
2.
Set the black knob of the electrical terminal box (located on the left-hand side) for the auxiliary heater to "position 2".
3.
Set the thermostat on the electrical terminal box of the auxiliary heater to the desired temperature, e.g. floor heating 35°C, heating element 50°C.
4.
Turn the rotary switch on the primary pump
(Wilo) clockwise to roughly the "5 o'clock" position.
5.
If you are using external heating cycle groups
(pumps), they must also be provided with a separate power supply.
6.
If you are using external heating cycle groups
(pumps), HGU or HGM from Remko, you should also set the rotating wheel on the front of the pump to the "5 o'clock" position.
7.
Remove the servo motor of the three-way changeover valve by pulling out the safety split pin between motor and valve body (see separate "Three-way changeover valve" operating instructions).
8.
Pull the motor away from the valve body.
9.
Turn the cylindrical ball valve in the direction of Outlet B using the round side (floor heating side or heating element).
To switch to providing hot water, proceed as follows:
1.
Turn the cylindrical ball valve in the direction of Outlet A using the round side (domestic water storage tank).
2.
Set the thermostat on the electrical terminal box of the auxiliary heater to the desired temperature, e.g. 50°C.
The following directions of flow must be realised manually:
Valve connection B -- Heating
Valve connection A -- Domestic water storage tank
The respective operating modes must be switched manually!
To activate emergency-heat operation if the out-
door unit fails, proceed as follows:
1.
In the menu of the Smart Control, go to the
………… screen.
2.
Set the bivalence point of the controller above the unit's heating limit.
3.
The electric heating element is then activated.
4.
Check the set temperature on the thermostat of the electric heating element.
5.
If necessary set it above the max. desired temperature (HW target temperature), e.g. if
HW target temperature = 45°C, then heating element = 50°C.
6.
The Smart Control takes full control of heat regulation and the activation of the heating element.
2
3
1
4
5
Fig. 61: 3-way-changeover valve
1: Servo motor
2: Safety split pin
3: Connection A, domestic water storage tank
4: Connection B, heating
5: Connection AB
73
REMKO WKF / WKF-compact
14
14.1
Exploded view and spare parts
Exploded view outdoor modules WKF/WKF-compact 85
5
7
18
20
19
16
2
6
8
13
12
E-
14
15
1
3
4
17
10
11
9
Fig. 62: Exploded view outdoor modulesWKF/WKF-compact 85
We reserve the right to modify the dimensions and constructional design as part of the ongoing technicaldevelopment process.
74
Spare parts list outdoor module WKF/WKF-compact 85
Nr.
Designation WKF 85 WKF-compact 85
WKF 85
WKF-compact 85
From series: 1267...
1273...
1
8
9
6
7
4
5
2
3
Compressor
Laminated heat-exchanger
Four-way change over valve
Shut-off valves
Fan blade
Cover panel
Side panel, left
Front panel
Fan protection guard
10 Side panel, right
11 Side panel, right
12 Grille, rear
13 Fan motor
14
15
Evaporator sensor/ compressor set sensor
Hot gas sensor / outdoor temperature set sensor
16
17
18
19
20
Transformer
Electronic expansion valve
Main board
Display
EMI board
EDP-Number
1120310
1120311
1120312
1120313
1120314
1120315
1120316
1120317
1120318
1120319
1120320
1120321
1120322
1120323
1120324
1120325
1120326
1120327
1120328
1120329
EDP-Number
1120310
1120311
1120312
1120313
1120314
1120315
1120316
1120317
1120318
1120319
1120320
1120321
1120322
1120323
1120324
1120325
1120326
1120327
1120328
1120329
1120323
1120324
1120325
1120326
1120327
1120328
1120329
When ordering spare parts, please state the computerised part no., device number and device type (see type plate)!
1293...
1294...
EDP-Number
1120310
1120311
1120312
1120313
1120314
1120560
1120561
1120562
1120563
1120564
1120565
1120566
1120322
75
REMKO WKF / WKF-compact
14.2 Exploded view outdoor modules WKF/WKF-compact 120
7
8
6
5
2
14
18 19
12
17
11
1
4
3
16
13
15
9
10
Fig. 63: Exploded view outdoor modules WKF/WKF-compact 120
We reserve the right to modify the dimensions and constructional design as part of the ongoing technicaldevelopment process.
76
Spare parts list outdoor module WKF/WKF-compact 120
Nr.
Designation
From series:
6
7
4
5
2
3
1 Compressor
Laminated heat-exchanger
Four-way change over valve
Shut-off valves
Fan blade
Cover panel
Side panel, left front
8
9
Grid, front
Side panel, right front
10 Mounting corner, right front
11 Side panel, right rear
12 Grid, rear
13 Mounting corner, right rear
14 Fan motor
15
Evaporator sensor / compressor set sensor
15
Hot gas sensor / outdoor temperature set sensor
16 Electronic expansion valve
17 Main board with display
18 Inverter board
19 EMI board
Spare parts (not illustrated)
Transformer
WKF 120
1269...
EDP-Number
1120450
1120451
1120452
1120453
1120454
1120455
1120456
1120338
1120457
1120478
1120458
1120459
1120481
1120482
1120460
1120461
1120463
1120464
1120465
1120466
WKF-compact 120
1275...
EDP-Number
1120450
1120451
1120452
1120453
1120454
1120455
1120456
1120338
1120457
1120478
1120458
1120459
1120481
1120482
1120460
1120461
1120463
1120464
1120465
1120466
WKF 120
WKF-compact
120
1295...
1296...
EDP-Number
1120450
1120451
1120452
1120453
1120454
1120575
1120576
1120577
1120578
1120579
1120580
1120581
1120582
1120482
1120460
1120461
1120463
1120464
1120465
1120466
1120462 1120462 1120462
When ordering spare parts, please state the computerised part no., device number and device type (see type plate)!
77
REMKO WKF / WKF-compact
14.3 Exploded view outdoor modules WKF/WKF-compact 180
6
12
2
7
8
14
5
19
16
20
18
11
3
4
17
1
13
10
9
15
Fig. 64: Exploded view outdoor modules WKF/WKF-compact 180
We reserve the right to modify the dimensions and constructional design as part of the ongoing technicaldevelopment process.
78
Spare parts list outdoor module WKF/WKF-compact 180
Nr.
6
7
4
5
2
3
1
Designation
From series:
Compressor
Laminated heat-exchanger
Four-way change over valve
Shut-off valves
Fan blade
Cover panel
Side panel, left front
8
9
Fan protection guard
Side panel, right front
10 Mounting corner, right front
11 Side panel, right rear
12 Grid, rear
13 Mounting corner, right rear
14 Fan motor
15
Evaporator sensor/ compressor set sensor
15
16
17
18
19
20
Hot gas sensor / outdoor temperature set sensor
Transformer
Electronic expansion valve
Main board with display
Inverter board
EMI board
WKF 180
1271...
EDP-Number
1120470
1120471
1120472
1120473
1120474
1120475
1120476
1120338
1120477
1120478
1120479
1120480
1120481
1120482
1120483
1120484
1120485
1120486
1120487
1120488
1120489
WKF-compact 180
1277...
EDP-Number
1120470
1120471
1120472
1120473
1120474
1120475
1120476
1120338
1120477
1120478
1120479
1120480
1120481
1120482
1120483
1120484
1120485
1120486
1120487
1120488
1120489
WKF 180
WKF-compact
180
1297...
1298...
EDP-Number
1120470
1120471
1120472
1120473
1120474
1120567
1120568
1120569
1120570
1120571
1120572
1120573
1120574
1120482
1120483
1120484
1120485
1120486
1120487
1120488
1120489
When ordering spare parts, please state the computerised part no., device number and device type (see type plate)!
79
REMKO WKF / WKF-compact
14.4 Exploded view indoor modules WKF 85/120/180
2
5
7
10
22
8
9
11
23
14
18
12
13
16
15
6
4
3
1
19
17
Fig. 65: Exploded view indoor modules WKF 85/120/180
We reserve the right to modify the dimensions and constructional design as part of the ongoing technicaldevelopment process.
80
Spare parts list indoor module WKF 85/120/180
4
5
2
3
1
Nr.
Designation
From series:
Front panel / cover
Cover
Control box
I/O module SMT
Control panel Smart-Control
8
9
6
7
Plate heat exchanger
Safety assembly
Actuator bypass valve
Valve body bypass valve
10 Auxillary heater 9 kW
11 Actuator 3-way-valve
12 Valve body 3-way-valve
13 Ultrasonic flow rate meter
14 Circulation pump Wilo Stratos
15 Actuator 3-way-valve bivalent operation
16 Valve body 3-way-valve bivalent operation
17 Terminal blocks
18 Pillar block pipe group
19 Control board Comkit
22 Ball valve for filling/drainage
23 Bleeder 1/4“
Spare parts (not illustrated)
Cable loom complete indoor module
Liquid sensor, cooling circuit / return / inlet-set
Software without Smart Count (SD card)
Software with Smart Count (SD card)
Coding resistor
Transformer
WKF 85
1266...
WKF 120
1268...
WKF 180
1270...
EDP-Number EDP-Number EDP-Number
1120901 1120901 1120901
1120902
1120915
1120650
248100
11209040
1120010
1120913
1120913-1
260066
1120912
1120912-1
1120914
1120911
1120912
1120912-1
1120922
1120904
252001
1120905
1120059
1120925
1120306
260030
260032
1120926
1120935
1120902
1120915
1120650
248100
11209040
1120010
1120913
1120913-1
260066
1120912
1120912-1
1120914
1120911
1120912
1120912-1
1120922
1120904
252012
1120905
1120059
1120925
1120306
260030
260032
1120927
1120935
1120902
1120915
1120650
248100
11209041
1120010
1120913
1120913-1
260066
1120912
1120912-1
1120914
1120911
1120912
1120912-1
1120922
1120904
252012
1120905
1120059
1120925
1120306
260030
260032
1120928
1120935
When ordering spare parts, please state the computerised part no., device number and device type (see type plate)!
81
REMKO WKF / WKF-compact
14.5 Exploded view indoor modules WKF-compact 85/120/180
1
7
2
9 12
23
10
11
13
24
16
21
22 5
14
15
8
18 17
6
4
20 3
25
Fig. 66: Exploded view indoor modules WKF-compact 85/120/180
We reserve the right to modify the dimensions and constructional design as part of the ongoing technicaldevelopment process.
82
Spare parts list indoor module WKF-compact 85/120/180
Nr.
Designation
5
6
3
4
1
2
From series:
Front panel / cover
Cover
Floor panel
Side plate storage tank
Control box
I/O module SMT
7
8
Control panel Smart-Control
Plate heat exchanger
9 Safety assembly
10 Actuator bypass valve
11 Valve body bypass valve
12 Auxillary heater 9 kW
13 Actuator 3-way-valve
14 Valve body 3-way-valve
15 Ultrasonic flow rate meter
16 Circulation pump Wilo Stratos
17 Actuator 3-way-valve bivalent operation
18 Valve body 3-way-valve bivalent operation
19 Terminal blocks
20 Domestic water storage tank WKT 300
21 Pillar block pipe group
22 Control board Comkit
23 Ball valve for filling/drainage
24 Bleeder 1/4“
25 Front panel storage tank
Spare parts (not illustrated)
Cable loom complete indoor module
Liquid sensor, cooling circuit / return / inletset
Software without Smart Count (SD card)
Software with Smart Count (SD card)
Coding resistor
Transformer
1120912
1120912-1
1120914
1120911
1120912
1120912-1
1120922
270500
1120904
252001
1120905
1120059
WKF-compact
85
1272...
EDP-Number
1120901
1120902
1120903
1120906
1120915
1120650
248100
1120940
1120010
1120913
1120913-1
260066
1120925
1120306
260030
260032
1120926
1120935
1120912
1120912-1
1120914
1120911
1120912
1120912-1
1120922
270500
1120904
252012
1120905
1120059
WKF-compact
120
1274...
EDP-Number
1120901
1120902
1120903
1120906
1120915
1120650
248100
1120940
1120010
1120913
1120913-1
260066
1120925
1120306
260030
260032
1120927
1120935
1120912
1120912-1
1120914
1120911
1120912
1120912-1
1120922
270500
1120904
252012
1120905
1120059
WKF-compact
180
1276...
EDP-Number
1120901
1120902
1120903
1120906
1120915
1120650
248100
1120941
1120010
1120913
1120913-1
260066
1120925
1120306
260030
260032
1120928
1120935
83
REMKO WKF / WKF-compact
Parts and fittings, set (not illustrated)
Designation
Fittings set, complete
Immersion sensor
Dirt trap
Ball valve 1“, red
Ball valve 1“, blue
Safety assembly
External sensor
WKF/WKF-compact
85/120/180
EDP-Number
260008
1120930
1120013
11200011
11200012
1120010
1120014-1
When ordering spare parts, please state the computerised part no., device number and device type (see type plate)!
84
15 EC- Declaration of Conformity
EC- Declaration of Conformity
in accordance with the Machinery Directive, Appendix II A1
Translated Declaration of Conformity
We do hereby declare that the devices named below, produced and sold by us, satisfy the relevant basic requirements of the EC guidelines, the EC safety standards and other product-specific EC standards.
Name of Manufacturer and name of CE-representative:
REMKO GmbH & Co. KG
Air conditioning and heating technology
Im Seelenkamp 12
D - 32791 Lage
Equipment (machinery) - Implementation:
Inverter heat pump with refrigerant R410A
Series / Designation:
WKF 85, WKF 85 S-Line,
WKF 120, WKF 120 S-Line,
WKF 180, WKF 180 S-Line
WKF-compact 85, WKF-compact 85 S-Line,
WKF-compact 120, WKF-compact 120 S-Line,
WKF-compact 180, WKF-compact 180 S-Line
Series / Class Number:
1266…, 1268…, 1270…, 1272…, 1274…, 1276…,
1267…, 1293…, 1269…, 1295…, 1271…, 1297…,
1273…, 1994…, 1275…, 1296…, 1277…, 1298…
Applicable regulations (EC-Directive)
MA - RL 2006/42/EC - Machine directive
NS - RL 2006/95/EC - Low-voltage directive
EMV – RL 2004/108/EC - Electro magnetic fields
EnVKV - RL 92/75/EC - Energy Labelling directive
EG 97/23/EG - Pressure Equipment Directive
Applicable Standards:
(Harmonized EN)
EN 378-1:2008 - Cooling-devices and heat-pump safety-and environment-related requirements
EN 378-2:2008, EN 378-3:2008, EN 378-4:2008
EN 50366:2003 - Electrical devices for household use and similar purposes - electromagnetic fields
EN 55014-1:2010-02 - Electromagnetic compatibility - requirements for household appliances, electric tools and similar electrical devices (earlier:
VDE 0875)
EN 55014-2:1997 / A1:2001 (Category IV) - Safety of electrical devices for household use and similar purposes (earlier: VDE 0700)
EN 60335-1: 2002 / A11: 2004 / A1: 2004
EN 60335-2-40: 2003 / A11: 2004 / A12: 2005 /
A1: 2006
EN 61000-3-2:2006 - Electromagnetic compatibility
(EMV, earlier: VDE 0838)
EN 61000-3-3:1995 / A1:2001 / A2:2005
Lage, 21. December 2012
REMKO GmbH & Co. KG
Signature Product Manager
85
REMKO WKF / WKF-compact
16 General terms
Annual power input factor
The annual power input factor indicates the power input (e.g. electrical energy) required in order to achieve a certain benefit (e.g. heating energy). The annual power input factor includes the energy required for auxiliary drives.
Energy supply company switching
Certain energy supply companies offer special tariffs for the operation of heat pumps.
When switching off the power supply companies only on the barrier is in contact only requirement of a heat source (heat pump) is blocked. Be switched off at monoenergetic operation, the power supply of the electric heating element with.
Bivalent mode
The heat pump provides the entire heating energy down to a predetermined outdoor temperature
(e.g. -3°C). If the temperature drops below this value, the heat pump switches off and the secondary heating appliance takes over the heating, e.g.
a heating boiler.
Evaporator
Heat exchanger on a refrigerant plant which uses the evaporation of a working medium in order to extract heat from its environment at low temperatures (e.g. the outdoor air).
Coefficient of performance
The current ratio of thermal output produced by the heat pump to the consumed electrical power is referred to as the coefficient of performance, as measured under standardised boundary conditions according to EN 255 / EN 14511. A coefficient of performance of 4 means that a usable thermal output amounting to 4-times the electrical power consumption is available.
Expansion valve
Heat pump component for lowering the condensing pressure on the vapour tension. In addition, the expansion valve regulates the quantity of injected refrigerant in relation to the evaporator load.
Compressor (condenser)
Unit designed for the mechanical conveyance and compression of gasses. Compression serves to significantly increase the pressure and temperature of the medium.
Heat carrier
Liquid or gas medium (e.g. water, brine or air), in which heat is transported.
Condenser
Heat exchanger on a refrigerant plant which liquefies a working medium in order to transmit heat to its environment (e.g. the heating system).
Heat pump system
A heat pump system consists of a heat pump and a heat source system. For brine and water/water heat pumps, the heat source system must be made available separately.
Heat source
Medium from which the heat pump derives heat, in other words, soil, air and water.
Defrost
At outdoor temperatures below 5°C it is possible that ice may form on the evaporators of air/water heat pumps. The removal of this ice is referred to as defrosting and is undertaken by supplying heat, either regularly or as requirements dictate. Air/ water heat pumps with circuit reversal are distinguished by their requirements-based, quick and energy-efficient defrosting system.
Heating output
Flow of heat emitted from the liquefier to the environment. The heating output is the sum of the electrical power consumed by the condenser and the heat flux obtained from the environment.
Inverter
Power regulator which serves to match the speed of the compressor motor and the speed of the evaporator fans to the heating requirement.
86
Limit temperature / bivalence point
Outdoor temperature where the secondary heating appliance cuts in under bivalent operation.
Monovalent mode
In this mode, the heat pump is the sole heating appliance in the building all year round. Monovalent mode is primarily used in combination with brine/water and water/water heat pumps.
Noise
Noise is transmitted in media such as air or water.
Essentially there are two types of noise, airborne sound and solid-borne sound. Airborne sound is transmitted entirely via the air. Solid-borne sound is transmitted in solid materials or liquids and is only partially radiated as airborne sound. The audible range of sound lies between 20 and
20,000 Hz.
Refrigerant
The working medium used in a refrigerant plant, e.g. heat pump, is referred to as the refrigerant.
The refrigerant is a liquid which is used for thermal transfer in a refrigeration plant and which is able to absorb heat by changing its state at low temperatures and low pressures. A further change of state at higher temperatures and higher pressure serves to dissipate this heat.
Refrigerating capacity
Heat flux extracted from the environment by the evaporator (air, water or soil).
Regulations and guidelines
The erection, installation and commissioning of heat pumps has to be undertaken by qualified specialist engineers. In doing so, various standards and directives are to be observed.
Seal inspection
System operators are obliged to ensure the prevention of refrigerant leakage in accordance with the directive on substances that deplete the ozone layer (EC 2037/2000) and the Regulation on Certain Fluorinated Greenhouse Gases (EC
842/2006). In addition, a minimum of one annual service and inspection must be carried out, as well as a sealing test for refrigerating plants with a refrigerant filling weight over 3 kg.
Seasonal performance factor
The seasonal performance factor relates to the ratio of heat content delivered by the heat pump system to the supplied electrical energy in one year. It may not be compared to the performance number. The seasonal performance factor expresses the reciprocal of the annual power input factor.
Single energy-source mode
The heat pump covers a large proportion of the required thermal output. On a few days per year an electrical heating coil supplements the heat pump under extremely low outdoor temperatures. Dimensioning of the heat pump for air/water heat pumps is generally based on a limit temperature (also known as balance point) of approx. -5 °C.
Sound pressure level
The sound pressure level is a comparable characteristic quantity for the radiated acoustic output of a machine, for example, a heat pump. The noise emission level at certain distances and acoustic environments can be measured. The standard is based on a sound pressure level given as a nominal noise level.
Split AC unit
Design where one part of the device is positioned outdoors and the other inside the building. Both units are connected to each other by a refrigerant pipe.
Storage tank
The installation of a hot-water storage tank is generally recommended in order to extend the running time of the heat pump under low heat requirements. A storage tank is required for air/water heat pumps in order to bridge off-periods.
87
REMKO WKF / WKF-compact
17 Index
A
Adding refrigerant.............................................. 49
Air exchange frequency..................................... 28
C
Circulation pump, motor protection.................... 15
Circulation pump, pump-characteristic curves... 15
Coefficient of performance............................. 9, 11
Condensate draining and ensured discharge.... 39
Contact sensor................................................... 53
Controls, overview............................................. 68
Cooling mode .................................................... 31
Cooling of the Heat Pump.................................. 44
COP............................................................... 9, 11
D
Disposal of equipment......................................... 7
Dynamic cooling................................................. 31
E
Electrical connection
Indoor module............................................... 50
Outdoor module............................................ 51
Ensured discharge in the event of leakage........ 40
Environmental protection..................................... 7
External sensor.................................................. 53
F
Function of the keys........................................... 68
G
Greenhouse gas according to Kyoto protocol
....................................................................... 9, 11
H
Heating capacity diagramm............................... 29
Heat pump
Characteristics of inverter heat pumps......... 29
Function of the heat pump............................ 27
Layout........................................................... 28
Layout example............................................. 28
I
Infiltration heat-loss............................................ 28
Installation
Indoor module............................................... 35
Outdoor module............................................ 36
Transversely reinforced strip footing............. 39
Installation cooling............................................. 44
Intended use........................................................ 6
L
Leak testing........................................................ 47
M
Minimum distances for the outdoor modules..... 38
Mounting
Indoor module............................................... 35
O
Overall sound pressure levels................ 17, 18, 19
P
Passive cooling.................................................. 31
Pipe-outlet spacing............................................ 13
Pipe-socket arrangement................................... 13
Pumping down to vacuum.................................. 47
S
Safety
Dangers of failure to observe the safety
notes............................................................... 5
General........................................................... 5
Identification of notes...................................... 5
Notes for inspection........................................ 6
Notes for installation....................................... 6
Notes for maintenance.................................... 6
Personnel qualifications.................................. 5
Safety-conscious working............................... 5
Safety notes for the operator.......................... 6
Unauthorised modification ............................. 6
Unauthorised replacement part manufacture.. 6
Sound intensity...................................... 17, 18, 19
Sound power level............................................. 16
Sound pressure level......................................... 16
Spare parts order....................... 75, 77, 79, 81, 83
T
Temperature sensors......................................... 52
Thermal transmission coefficient....................... 28
Transmission-heat requirement......................... 28
W
Warranty.............................................................. 6
88
89
REMKO WKF / WKF-compact
90
REMKO INTERNATIONAL
… and also right in your neighbourhood!
Make use of our experience and advice
Consulting
Thanks to intensive training, our consultants are always completely up-to-date in terms of technical knowledge. This has given us the reputation of being more than just an excellent, reliable supplier:
REMKO, a partner helping you find solutions to your problems.
Distribution
REMKO offers not just a well established sales network both nationally and internationally, but also has exceptionally highlyqualified sales specialists.
REMKO field staff are more than just sales representatives: above all, they must act as advisers to our customers in air conditioning and heating technology.
SFlb
Customer Service
Our equipment operates precisely and reliably. However, in the event of a fault, REMKO customer service is quickly at the scene. Our comprehensive network of experienced dealers always guarantees quick and reliable service.
REMKO GmbH & Co. KG
Air conditioning and heating technology
Im Seelenkamp 12 D-32791 Lage
Postfach 1827
Telephone
Telefax
Website
D-32777 Lage
+49 5232 606-0
+49 5232 606-260 [email protected]
www.remko.de
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