REMKO WKF-compact 120 Series, WKF 120 Series, WKF-compact 180 Series, WKF 180 Series Assembly And Operating Instructions Manual

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Assembly and operating instructions

REMKO WKF / WKF-compact 120 / 180

Inverter heat pumps

Instructions for the Technician

0093-2014-10 Edition 1, en_GB

Read the instructions prior to performing any task!

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)

1 Safety and user notes .......................................................................................................................... 5

1.1 General safety notes....................................................................................................................... 5

1.2 Identification of notes...................................................................................................................... 5

1.3 Personnel qualifications.................................................................................................................. 5

1.4 Dangers of failure to observe the safety notes................................................................................ 5

1.5 Safety-conscious working............................................................................................................... 5

1.6 Safety notes for the operator........................................................................................................... 6

1.7 Safety notes for installation, maintenance and inspection.............................................................. 6

1.8 Unauthorised modification and changes......................................................................................... 6

1.9 Intended use................................................................................................................................... 6

1.10 Warranty........................................................................................................................................ 6

1.11 Transport and packaging.............................................................................................................. 7

1.12 Environmental protection and recycling........................................................................................ 7

2 Technical Data....................................................................................................................................... 8

2.1 Units data WKF/WKF-compact 120/180......................................................................................... 8

2.2 Unit dimensions outdoor module................................................................................................... 10

2.3 Unit dimensions indoor modules................................................................................................... 10

2.4 Heat pump service limits in monovalent mode ............................................................................. 13

2.5 Pump-characteristic curves, indoor module charging pump......................................................... 14

2.6 Overall sound pressure levels for outdoor module ....................................................................... 15

2.7 Characteristic curves..................................................................................................................... 17

3 Structure and function........................................................................................................................ 23

3.1 The heat pump in general............................................................................................................. 23

3.2 WKF series.................................................................................................................................... 29

3.3 WKF-compact series..................................................................................................................... 29

4 Installation instructions...................................................................................................................... 30

4.1 System layout................................................................................................................................ 30

4.2 General installation instructions.................................................................................................... 32

4.3 Installation, mounting indoor module............................................................................................ 33

4.4 Installation, mounting outdoor module.......................................................................................... 34

5 Hydraulic connection.......................................................................................................................... 38

Cooling of the heat pump................................................................................................................... 42

7 Corrosion protection.......................................................................................................................... 43

8 Connection of refrigerant lines.......................................................................................................... 44

8.1 Connection of refrigerant lines...................................................................................................... 44

8.2 Commissioning the refrigeration system....................................................................................... 45

9 Elektrical connection.......................................................................................................................... 48

9.1 General notes................................................................................................................................ 48

9.2 Electrical connection - indoor module........................................................................................... 49

9.3 Electrical connection - outdoor module ........................................................................................ 49

9.4 Electrical configuration - I/0 module.............................................................................................. 52

9.5 Terminal assignment / legend....................................................................................................... 53

9.6 Circuit diagrams............................................................................................................................ 55

10 Commissioning................................................................................................................................... 68

10.1 Control panel and information on commissioning....................................................................... 68

11 Care and maintenance........................................................................................................................ 70

REMKO WKF / WKF-compact

12 Temporary shut-down........................................................................................................................ 70

Troubleshooting and customer service............................................................................................ 71

13.1 Troubleshooting and customer service....................................................................................... 71

13.2 Emergency-heat operation.......................................................................................................... 76

14 Exploded view and spare parts......................................................................................................... 77

14.1 Exploded view outdoor modules WKF/WKF-compact 120......................................................... 77

14.2 Exploded view outdoor modules WKF/WKF-compact 180......................................................... 79

14.3 Exploded view indoor modules WKF 120/180............................................................................ 81

14.4 Exploded view indoor modules WKF-compact 120/180.............................................................. 83

15 General terms...................................................................................................................................... 86

16 Index..................................................................................................................................................... 88

1.1

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

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.

Safety and user notes

General safety notes

Identification of notes

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.

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.

Dangers of failure to observe

1.4 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 mainte-

nance and repair.

n Danger to people on account of electrical and

mechanical effects.

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.

1.5

Safety-conscious working

The safety notes contained in this manual, the existing national regulations concerning accident prevention as well as any internal company working, operating and safety regulations must be observed.

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 tech-

nician at least once annually. Visual inspections and cleaning may be performed by the operator when the units are disconnected from the mains.

Safety notes for installation,

1.7 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 pro-

vided 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 suit-

able surfaces and in an upright position. Stationary units must be permanently installed for operation.

n The units and components should not be oper-

ated 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.

Unauthorised modification

1.8 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

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.

Warranty

1.11

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.

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

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.

Transport and packaging

WARNING!

Environmental protection and recycling

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.

REMKO WKF / WKF-compact

2.1

Series WKF 120

Function Heating or Cooling

System Split-Air/Water

Heat pump manager Smart-Control

Trinkwasserspeicher emailliert on-site ser. 300 l optional ser. 300 l

Electric booster heating / rated output kW optional / 9,0

Domestic hot-water heating (changeover valve)

Connecting oil-/ gas boiler optional

Heating capacity min / max kW 2,5 - 13 3,1 - 17,7

Heating capacity / compressor frequency / COP for A12/W35

Heating capacity / compressor frequency / COP 1) for A7/W35

Technical Data

Units data WKF/WKF-compact 120/180

WKF-

compact

120

optional series optional series

kW/Hz/COP 10,96/61/4,82 16,02 / 56 / 5,33

kW/Hz/COP 9,86/61/4,44 14,02 / 56 / 4,53

WKF 180

WKF-

compact

180

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. kW 2,30 - 11,0 2,8 - 15,0

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

kW/Hz/COP 6,95/60/3,64 9,32 / 56 / 3,53

kW/Hz/COP 6,14/61/2,89 8,20 / 56 / 2,87

kW/ Hz/COP 4,82/61/2,39 6,36 / 56 / 2,40

kW/Hz/COP 10,15/58/3,67 12,27 / 58 / 3,46

kW/Hz/COP 8,99/61/2,78 12,85 / 56 / 2,92

kW/Hz/COP 4,63/61/1,79 6,99 / 56 / 1,94

kW/Hz/EER 6,79/66/2,33 12,2 / 72 / 2,60

kW/Hz/EER 5,3/38/3,66 12,7 / 38 / 3,81

kW/Hz/EER 9,46/66/3,61 18,20 / 66 / 4,08

Service limits, heating °C -20 - +45

Service limits, cooling °C +15 - +45

Supply-temperature, heating water °C 55

Min. Supply-temperature, cooling °C 7

Series WKF 120

Refr. / pre-charge quantity out. mod. -- / kg

Refrigerant / pre-charge quantity for up to 10 m length of ordinary pipe

g / m 50

R 410A2) / 2,00 R 410A2) / 2,85

WKF-

compact

120

WKF 180

WKF-

compact

180

Refrigerant connection Inch (mm) 3/8" (9,52) / 5/8" (15,9)

Max. refrigerant pipe length m 50 75

Max. refrigerant pipe height m 30

Power supply V / Hz 230 / 50 400 / 3~ / 50

Max. current consumption A 15,28

Rated current consumption for A7/W35 A 10,44 5,02 (per phase)

Rated power consumption for A7/W35 kW 2,22 3,09

Max. power consumption kW 4,0 4,5

Power factor A7/W35 (cosφ) -- 0,97 0,95

Fuse protection on-site (o. mod.) A Träge 20 3 x 16 A

Rated water flow (acc. to EN 14511, at ∆t 5 K)

m³/h 1,70 2,4

Pressure-loss at the condenser at nominal flow rate

bar 0,1

Pressure-loss external kPa 80

Air-nominal flow rate outdoor module m³/h 3700 5400

Max. operating pressure, water bar 3

Hydraulic connection, supply / return Zoll (mm) 1" (25,4)

Sound-power level in accordance with DIN EN 12102:2008-09 and ISO 9614-2

Sound-pressure level, LpA (out. mod.)

dB(A) 67,9 68,3

dB(A) 42,2 42,4

500/800/

1928/800/

500/800/

1928/800/

Dimensions, indoor module (h/w/d) mm

500

790

500

790

Dimensions, outdoor module (h/w/d) mm 998 / 940 / 330 1420 / 940 / 330

Enclosure class outdoor module -- IP 24

Weight indoor module kg 52 223 55 226

Weight outdoor module kg 74 100

COP = coefficient of performance or performance number according to EN 14511

Contains greenhouse gas according to Kyoto protocol, GWP 1975

Distance 5m, TÜV tested, A7/W55/58Hz, at full spherical propagation

Data provided without guarantee! We reserve the right to modify the dimensions and constructional design as part of the ongoing technical-development process.

792 500

500

650

REMKO WKF / WKF-compact

2.2

Unit dimensions outdoor module

Fig. 1: Unit dimensions outdoor module WKF/WKF-compact 120/180

Dimensions in mm A B C D E

WKF/WKF-compact 120 940 1010 330 620 360

WKF/WKF-compact 180 940 1430 330 620 350

2.3

Unit dimensions indoor modules

Unit dimensions indoor modules WKF 120/180

Fig. 2: Unit dimensions indoor modules series WKF 120/180

Unit dimensions indoor modules WKF-compact 120/180

2100,10

1928,10

792,43 792,43

821

012

882

823

031

532

135

205

142 212 368

384

465

508,50

578,50

267

135

142 212

205

267

368

134,50 164,50

134,50

164,50

384

465

508,50

578,50

821

012

882

823

655

026

532

031

Fig. 3: Unit dimensions indoor modules WKF-compact 120/180

Pipe-socket arrangement

Fig. 4: Pipe-socket arrangement

A: WKF 120/180 B: WKF-compact 120/180

5 6 7

REMKO WKF / WKF-compact

Designations of the pipe connections

Fig. 5: Designations of the pipe connections

A: WKF 120/180 B: WKF-compact 120/180 1: Circulation 2: Cold water inlet 3: Inlet heater 4: Warm water 5: Return heater

6: Refrigerant liquid pipe. 3/8" 7: Refrigerant hot gas pipe 5/8" 8: 2. heat generator return (Outlet heat pump) 9: Safety assembly 10: 2. heat generator inlet (Inlet heat pump) 11: Connections solar

-20°C; 22°C

-20°C; 43°C

-10; 55

35; 55

35°C; 22°C

15°C

20°C

25°C

30°C

35°C

40°C

45°C

50°C

55°C

60°C

-30°C -20°C -10°C 0°C 10°C 20°C 30°C 40°C

Vorlauemperatur [°C]

Außentemperatur [°C]

Einsatzgrenzen WKF 120

[ ° C]

-20°C; 22°C

-20°C; 42°C

-10; 55

35; 55

35°C; 22°C

15°C

20°C

25°C

30°C

35°C

40°C

45°C

50°C

55°C

60°C

-30°C -20°C -10°C 0°C 10°C 20°C 30°C 40°C

Vorlauemperatur [°C]

Außentemperatur [°C]

[ ° C]

2.4

Heat pump service limits in monovalent mode

Fig. 6: Service limits and test points WKF/WKF-compact 120

AT: Outside temperature / VT: Inlet temperature

Outdoor temperature [°C] -20 -20 -10 20 35 35

Inlet temperature [°C] 22 43 55 55 55 22

Fig. 7: Service limits and test points WKF/WKF-compact 180

AT: Outside temperature / VT: Inlet temperature

Outdoor temperature [°C] -20 -20 -10 20 35 35

Inlet temperature [°C] 22 42 55 55 55 22

NOTE:

Note: The left temperature value in the diagram refers to the supply-temperature heating water and the lower refers the outdoor air temperature.

100

120

140

160

20 40 60 80 100

[l/min]

[W]

[%]

REMKO WKF / WKF-compact

2.5

Pump-characteristic curves, indoor module charging pump

Fig. 8: Circulation pump Grundfoss UPML 25-105 180 PWM - power range

1: Power consumption [W] 2: Volume flow [l/mim]

A: Characteristic curve volume flow [l/mim] B: Characteristic curve power consumption [W]

3: Activation [%] External control via analogical-in PWM-signal Tolerances of each curve according to EN 1151-1:2006

Level Output [W] Current [A] Motor protection

min. 7 0,07 Rotor current-proof

max. 136 1,03 Rotor current-proof

dB 80

125 250 500 1000 2000 4000 8000 A L Hz

Cursor:

NEUE GRAFIK !

49,9

54,3

50,5

54,9

62,7

55,7

55,9

54,6

57,4

57,1

59,0

54,3

52,3

49,9

47,2

44,8

41,7

36,1

33,3

A-Gesamt:

67,9 dB(A)

0,0

10,0

20,0

30,0

40,0

50,0

60,0

70,0

80,0

100 160 250 400 630 1000 1600 2500 4000 6300

dB(A)

Frequenz (Hz)

REMKO Wärmepumpe WP171

Schallleistung LwAre 1pW

A7 / W 55

Typ: WKF120-AM

A7 / W 55

2.6

Overall sound pressure levels for outdoor module

Outdoor module WKF/WKF-compact 120

Fig. 9: Overall sound pressure level LP of REMKO outdoor module series: WKF/WKF-compact 120

Middle frequency [Hz] 25 31,50 40 50 63 80 100 125 160

LI [dBA] (27,6) (40,9) (38,3) (31,4) (45,3) (33,5) 40,0 44,4 40,6

LWo [dBA] (37,5) (50,8) (48,2) (41,3) (55,2) (43,4) 49,9 54,3 50,5

FPI [dB] -(14,3) -(8,3) -(8,5) -(6,6) -(3,6) -(2,0) -0,2 0,7 2,6

Middle frequency [Hz] 200 250 315 400 500 630 800 1000 1250

LI [dBA] 45,0 52,8 45,8 46,0 44,7 47,5 47,2 49,1 44,4

LWo [dBA] 54,9 62,7 55,7 55,9 54,6 57,4 57,1 59,0 54,3

FPI [dB] 4,3 4,3 5,6 6,7 7,1 7,1 11,2 6,0 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] 52,3 49,9 47,2 44,8 41,7 36,1 33,3 (31,5) (26,1)

FPI [dB] 5,7 5,5 5,5 5,4 5,1 6,0 6,3 (5,5) (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

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

32,1

28,0

A-Gesamt:

68,3 dB(A)

0,0

10,0

20,0

30,0

40,0

50,0

60,0

70,0

80,0

100

160

250

400

630

1000

1600

2500

4000

6300

dB(A)

Frequenz (Hz)

REMKO Wärmepumpe WP173

Schallleistung LwAre 1pW

A7 / W 55

Typ: WKF180-AM

A7 / W 55

REMKO WKF / WKF-compact

Outdoor module WKF/WKF-compact 180

Fig. 10: Overall sound pressure level LP of REMKO outdoor module series: WKF/WKF-compact 180

Middle frequency [Hz] 25 31,50 40 50 63 80 100 125 160

LI [dBA] (31,4) (41,6) (32,8) (40,8) (37,3) (37,4) 49,8 45,8 50,5

LWo [dBA] (41,9) (52,1) (43,4) (51,3) (47,9) (47,9) 60,4 56,3 61,1

FPI [dB] -(11,6) -(9,2) -(7,7) -(5,4) -(3,2) -(2,0) 0,0 1,1 2,1

Middle frequency [Hz] 200 250 315 400 500 630 800 1000 1250

LI [dBA] 44,3 44,6 45,8 44,8 44,9 46,4 47,2 48,4 41,9

LWo [dBA] 54,8 55,1 56,4 55,3 55,4 56,9 57,8 58,9 52,4

FPI [dB] 6,1 6,4 8,7 9,4 9,6 9,2 11,6 8,4 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] 49,2 46,0 43,6 40,9 37,0 32,1 28,0 (28,6) (19,3)

FPI [dB] 11,4 13,9 13,2 13,0 13,5 14,7 15,2 (11,1) (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

[°C]

[kW]

-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

n-min

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

54 Hz

[°C]

[kW]

-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

n-min.

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

54 Hz

2.7

Characteristic curves

Heating capacity at an inlet temperature 35 °C

Fig. 11: 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 45 °C

Fig. 12: Heating capacity WKF/WKF-compact 120 at an inlet temperature of 45 °C

AT: Outdoor temperature HL: Heating capacity NF: Rated frequency

[°C]

[kW]

-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

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

54 Hz

n-min.

[°C]

COP [-]

-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

35° C

45° C

55° C

REMKO WKF / WKF-compact

Heating capacity at an inlet temperature 55 °C

Fig. 13: 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

Fig. 14: 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

Heating capacity at an inlet temperature 35 °C

[°C]

[kW]

-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

n-min.

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

[°C]

[kW]

-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

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

n-min.

Fig. 15: 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 45 °C

Fig. 16: Heating capacity WKF/WKF-compact 180 bei Vorlauftemperatur 45 °C

AT: Outdoor temperature HL: Heating capacity NF: Rated frequency

[°C]

[kW]

n-min.

-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

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

[°C]

COP [-]

-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

35° C

45° C

55° C

REMKO WKF / WKF-compact

Heating capacity at an inlet temperature 55 °C

Fig. 17: Heating capacity WKF/WKF-compact 180 bei Vorlauftemperatur 55 °C

AT: Outdoor temperature HL: Heating capacity NF: Rated frequency

COP at an inlet temperature of 35 °C, 45 °C und 55 °C

Fig. 18: 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

Loss in heating output WKF/WKF-compact 120

5 0

-5

-10

-15

-20

-25

-30

0 5 10 15 20 25 30 35 40 45 50

[m]

100% 95% 90%

95%

+30 m

0 m

-30 m

86%

5 0

-5

-10

-15

-20

-25

-30

0 5 10 15 20 25 30 35 40 45 50

[m]

100% 98% 95%

95%

89%

+30 m

0 m

-30 m

92%

Fig. 19: Loss in heating output WKF/WKF-compact 120

A: Difference in elevation B: Length of refrigerant piping

Loss in cooling output WKF/WKF-compact 120

Fig. 20: Loss in cooling output WKF/WKF-compact 120

A: Difference in elevation B: Length of refrigerant piping

5 0

-5

-10

-15

-20

-25

-30

0 5 10 15 20 25 30 35 40 45 50

[m]

100% 90%

+30 m

0 m

-30 m

80%

55 60 65 70 75

85%

5 0

-5

-10

-15

-20

-25

-30

0 5 10 15 20 25 30 35 40 45 50

[m]

100% 90% 83%

+30 m

0 m

-30 m

80%

55 60 65 70 75

86%

REMKO WKF / WKF-compact

Loss in heating output WKF/WKF-compact 180

Fig. 21: Loss in heating output WKF/WKF-compact 180

A: Difference in elevation B: Length of refrigerant piping

Loss in cooling output WKF/WKF-compact 180

Fig. 22: Loss in cooling output WKF/WKF-compact 180

A: Difference in elevation B: Length of refrigerant piping

75%* of the heat comes from the air, free of charge

75%

freesolar energy from the air

25%

electrical drive energy

Heating

3.1

Arguments for Remko

n Low heating costs in comparison to oil and

n Heat pumps represent a contribution to envi-

Structure and function

The heat pump in general

gas.

ronmental protection.

n Lower CO2 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.

Fig. 23: 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.

REMKO WKF / WKF-compact

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

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.

Fig. 24: 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

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

on page 26 shows the

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 (tR-tA) and must be calculated separately for all

room-enclosure surfaces. The infiltration heat requirement takes into consid-

eration 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 (tR-tA).

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.)

-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

Heat load acc. DIN EN 12831

n.max

n-min

Min. performance

2. heat source

n.max

Heating capacity [kW]

Heating capacity at a supply temperature of 35°C

Rated frequency 57 Hz

Heat load

Heat load plus warm-water requirements and service time-out period

Heating threshold for old building according to VDI 4650

Outdoor temperature [°C]

Bivalent temperature

Standard outdoor temperature

REMKO WKF / WKF-compact

Building type

Specific heating output in W/m

Passive energy house 10

Low-energy house built in 2002 40

According to energy conservation order regarding heat insulation 1995

Modern building constructed around 1984 80

Partially-renovated old building constructed pre-1977 100

Non-renovated old building constructed pre-1977 200

Fig. 25: 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 every-

where 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 installa-

tion.

n Particularly suitable for low-energy houses with

low inlet temperatures.

n Ideal for bivalent operation, in order to save

energy.

1/3

When it is switched on, the inverter only requires one-third of the time of conventional systems

Time

Minimal temperature fluctuations mean energy savings

Conventional Inverter

Temperature

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.

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

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.

Fig. 26: Modern inverter technology

10 12 14 16 18 20 22 24 26 28 30

uncomfortably humid

comfortable

still comfortable

uncomfortably dry

Relative humidity in %

Room air temperature in °C

REMKO WKF / WKF-compact

Under dynamic cooling the refrigerating capacity

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.

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.

Fig. 27: Comfort zone

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. 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. 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.

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. 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).

Single energy-source operation by REMKO SmartServ or bivalent operation by REMKO Smart-BVT is also to realize. All connections are to be installed on top of the device.

IM1

NAM

KA1

STL

KML

NIM

NZ1

VWW

GRL

VHZ

AM1

VEN

STL

KML

IM2

NIM

NZ2

KA2

VRH

NAM

AM2

VEN

KA1

REMKO WKF / WKF-compact

4.1

Installation instructions

System layout

Fig. 28: System layout WKF/WKF-compact 120

AB: Outdoor area IB: Indoor area AM1,2: Outdoor module

WKF-compact 120, WKF 120

IM1,2: Indoor module

WKF-compact 120, WKF 120 GRL: Common return pipe (DN 25) KA1: Condensate drain AM

(must be designed to be frost proof!) KA2: Condensate drain IM KML:

NAM: Mains supply OM = 230V / 1~ / 50Hz

Refrigerant lines 3/8" and 5/8“

20A (e.g. 3x2,5 mm2)

NIM: Mains supply IM = 230V / 1~ / 50Hz

16A (e.g. 3x1,5 mm2)

NZ1: Mains cable electric auxiliary heater

(e.g. 5x2,5 mm2)

NZ2: Mains cable electric auxiliary heater

(optional), (e.g. 5x2,5 mm2) STL: 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)

Control cable (e.g. 2x1mm2)

IM1

NAM

VEN

KA1

STL

KML

NIM

NZ1

VWW

GRL

VHZ

AM1

VEN

STL

KML

IM2

NIM

NZ2

KA2

VRH

NAM

VEN

AM2

VEN

KA1

Fig. 29: System layout WKF/WKF-compact 180

AB: Outdoor area IB: Indoor area AM1,2: Outdoor module

WKF-compact 180, WKF 180

IM1,2: Indoor module

WKF-compact 180, WKF 180 GRL: Common return pipe (DN 25) KA1: Condensate drain OM (must be designed

KA2: Condensate drain IM KML:

NAM: Mains supply AM = 400V / 3~ / 50Hz

to be frost proof!)

Refrigerant lines 3/8" and 5/8“

3x16A (e.g. 5x1,5 mm2)

NIM: Mains supply IM = 230V / 1~ / 50Hz

16A (e.g. 3x1,5 mm2)

NZ1: Mains cable electric auxiliary heater

(e.g. 5x2,5 mm2)

NZ2: Mains cable electric auxiliary heater

(optional), (e.g. 5x2,5 mm2) STL: 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)

Control cable (e.g. 2x1mm2)

REMKO WKF / WKF-compact

The indoor and outdoor modules have to be connected with refrigerant lines of dimensions

/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.

WARNING!

All electric lines are in accordance VDE regulations to dimension and to lay.

General installation instruc-

4.2 tions

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 accord-

ance 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.

The installation of refrigerant equipment may be undertaken only by trained specialist personnel!

DANGER!

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.

NOTICE!

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).

Fig. 30: Wall breakthroughs

1: Liquid line 2: Control cable 3: Supply 4: Hot gas line

Indoor module WKF-compact series

n The indoor module must be installed on a firm,

level surface.

n The surface must possess sufficient load-

bearing 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.

Installation, mounting

4.3

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

Fig. 32: Floor mounting WKF-compact

WARNING!

Only fasteners suitable for the given application may be used.

Fig. 31: Wall mounting WKF

A B

REMKO WKF / WKF-compact

Minimum distances for the indoor modules

Fig. 33: Minimum distances for the indoor modules

A: WKF B: WKF-compact

Value in mm 1 2 3 4

WKF 500 300 300 150

WKF-compact 500 300 300 ---

Installation, mounting

4.4 outdoor module

Outdoor module installation location

n The device may be attached only to a load-

bearing 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 protected against them (Fig. 34). The snow line is to be observed during installation (

n The outdoor module must always be installed

on vibration dampers. Vibration dampers prevent the transmission of vibrations through the floor or walls.

Fig. 35).

n A heated, condensate tra ensures that conden-

sation 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 (Fig. 35).

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.

20 cm

Fig. 34: Protection from wind

1: Wind

Fig. 35: Protection from snow

1: Snow

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.

Assessment level in accordance

Point of emissions

with TA noise

days in dB(A) nights in dB(A)

Industrial areas 70 70

Commercial areas 65 50

Core areas, village areas and mixed zones 60 45

General residential areas and small housing estates 55 40

Exclusively residential areas 50 35

Spa areas, hospitals and mental institutions 45 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

n The external danger area surrounds the equip-

ment up to a distance of 2 m, measured in all directions from the unit housing.

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 on-site can differ as

a result of the setup. The specialist company performing the installation work bears the responsibility for this.

n 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!

4 5

>= 250

>= 1500

>= 1500 >= 250

>= 250

>= 300

>= 600

>= 250

>= 1500

>= 2000

1 2

>= 1500

>= 300 >= 600 >= 600 >= 600

>= 250

>= 600 >= 600

>= 1500

>= 250

>= 1500 >= 3000>= 600 >= 250>= 3000

REMKO WKF / WKF-compact

Minimum distances in mm for the outdoor modules WKF/WKF-compact

Fig. 36: 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: In a niche, free flow air to the front, rear and

flow restriction on both sides.

5: Before a covered wall, free flow air to the front,

rear and top of flow restrictions

6: Before a covered wall, air outlet towards wall,

flow restrictions behind and above

Fig. 37: 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: Between two walls, facing the wall outlet and

4: Between two walls, air outlet towards wall, or

other modules, Sides: flow restrictions in front and rear

the external modules-free: flow restriction in front, rear and internal modules on the sides.

Condensate draining and ensured discharge

5 5

100

10 10

12 12

Fig. 39: Dimensioning of the transversely reinforced strip footing (Plan view)

Please see the terms 1,3,5,7,8 and 10 the legend on

Dimensioning of the strip footing (all values in mm)

Fig. 38: 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 elec-

trical 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

Dim. WKF/WKF-com-

pact 120

WKF/WKF-com-

pact 180

A 800 800

B 200 200

C 620 620

D 370 350

E 400 420

F 100 100

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 on-

site 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 temper-

atures 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.

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.

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 For hydraulically isolation of the heating cir-

n Make a pipe-network calculation before instal-

n Protect floor heating systems against exces-

n Do not reduce pipe diameters for the supply

n Plan for air bleed valves and drain-off taps at

n Flush the the system's entire pipe network

n One or, where necessary, several expansion

n The system pressure of the entire pipe network

n As delivered, the safety assembly consists of a

Hydraulic connection

A separate interpretation of nominal flow rate must be made for every system (see technical data).

cuits, a buffer storage can be installing as a hydraulic switch.

ling the heat pump. After installing the heat pump, it is necessary to perform a hydraulic balancing of the heating circuit.

sively high inlet temperatures.

and return connections to the heat pump before connecting a buffer tank-unit.

appropriate places.

before connecting the heat pump.

tanks must be designed for the entire hydraulic system.

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.

manometer, air bleeder and safety valve. It is to be mounted to the pipe connection provided on the indoor unit.

Fig. 40: Safety assembly (similar image)

1: Manometer 2: Automatic bleeder 3: Safety valve 4: Indoor 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.

Fig. 41: Shut-off valves

Turning the thermometer heads serves to close or open the stop valves! The dial be brought into the desired position.

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 addition-

ally 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 con-

nections 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.

Actual schemas for hydraulic integration can be found on the internet at www.remko.de

n Install the dirt traps delivered with the unit out-

side 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.

FBKK

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!

Fig. 42: WKF example hydraulic diagram

A: Outdoor module B: Indoor moduleWKF C: Storage tank FB: 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.

WKF-compact hydraulic diagram

KKKW

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!

Fig. 43: WKF-compact example hydraulic diagram

A: Outdoor module B: Indoor module WKF-compact FB: Floor heating cycle

KW: Cold water WW: Warm water ZK: Circulation

KK: Cooling cycle 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.

REMKO WKF / WKF-compact

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 and on page 41. 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.

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.

Cooling of the heat pump

‘ WKF hydraulic diagram’ on page 40

‘ WKF-compact hydraulic diagram’

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.

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.

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.

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

See the following table for the requirements in accordance with VDI 2035 Part 1 with regard to total hardness.

Total hardness [°dH] subject to the specific system volume

Overall output in kW <20 l/kW ³20 l/kW and <50 l/kW ³50 l/kW

to 50 kW £16,8 °dH £11,2 °dH £0,11 °dH

The following table provides the allowed oxygen content in connection with the salt content.

low-salt salline

Electrical conductivity at 25°C

Corrosion protection

water, checking the pH value after 8 to 12 weeks.

Reference values for the hot water in accordance with VDI 2035 Part 2

μS/cm < 100 100-1500

Oxygen content mg/l < 0,1 < 0,02

pH value at 25°C 8,2 - 10,0 *)

*) 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.

REMKO WKF / WKF-compact

8.1

n The outdoor- and the indoor units are con-

n Observe the permitted bending radius for the

n Assure suitable fastening and insulation when

n The copper pipes are to be flared to make the

Connection of refrigerant lines

nected with two copper pipes of refrigerator quality having the dimensions 3/8" = 9,52 mm and 5/8" = 15,88 mm (REMKO special accessory).

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.

laying the refrigerant pipes.

connections to the units. In doing so, check that the flare has the correct shape and suitable union nuts. (Fig. 44

to Fig. 46).

Fig. 45: Flanging the refrigerant line

1: Flanging tool

Fig. 44: Deburring the refrigerant line

1: Refrigerant line 2: Deburrer

Fig. 46: Correct flange shape

Copper piping Outside diameterer

3/8" = 9,52 mm 12,4 - 12,8 mm

5/8" = 15,88 mm 21,9 - 22,3 mm

Flare dimensions ø A

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 ini-

tially, 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 other (Fig. 47).

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!

Fig. 47: Tighten fittings

1: Tighten 1st Spanner 2: Counter 2nd Spanner

Copper piping Outside diameter

3/8" = 9,52 mm 32 - 40 Nm

5/8" = 15,88 mm 65 - 75 Nm

n The installed refrigerant pipes, including the

n Special measures need not be taken for the

flare connections, must be provided with suitable insulation.

return of the compressor oil.

Tightening torque

Outdoor units may be delivered with nuts suitable for joining flanges.

Commissioning the

8.2 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!

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.

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.

Functional checks and test run

Check the following points:

n Leak-tightness of the refrigerant pipes. n Compressor and fan running smoothly. n Discharge of warmer water in the indoor unit

and discharge cold air in the outdoor unit in heating mode

n Function test of the indoor units and all pro-

gram sequences.

n Check of the surface temperature of the suc-

tion 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.

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

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.

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.

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.

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.

Additional fill quantity

Basic pipe length

To max. 10 m 0 g/m 0 g/m

10 m to max. 50 m per circuit

10 m bis max. 75 m pro Kreislauf

Examples

Basic pipe length

10 m 0 g

15 m 250 g

20 m 500 g

25 m 750 g

Up to and incl. 10 m

50 g/m ---

--- 50 g/m

Additional fill quantity

WKF/WKF-compact 120/180

WKF/WKF-

compact 180

NOTICE!

Check the overheating to determine the refrigerant fill quantity.

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 CO2, based on 100 years. Do not conduct any work on the refrigerant circuit or dismantle the device - always enlist the help of qualified experts.

REMKO WKF / WKF-compact

9.1

n It is necessary to lay a power-supply cable

n Power to the indoor unit may not be discon-

n All indoor modules require a single-phase

n The electrical connection between outdoor-

n Where applicable, a separate three-phase

n The Smart-Control needs to know whether a

n In the chapter "Connection diagram, terminal

n Special rates for heat pumps may be offered

n Ask your local power company about the

Elektrical connection

General notes

both to the outdoor unit and, separately, to the indoor unit.

nected by the power company (frost protection).

power supply at 230 V / 50 Hz. The outdoor modules series WKF/WKF-com-

pact 120 require a single-phase power supply at 230 V / 50 Hz and the outdoor modules series WKF/WKF-compact 180 require a threephase power supply at 400 V / 50 Hz.

and indoor units is made using two-wire control cable.

power supply 400 V / 50 Hz shall be provided to the indoor unit for electric booster heating.

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).

configuration" in this manual can be found a connection schematic along with corresponding circuit diagrams.

by the power company (PSC).

details of any rates that might be available.

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.

NOTICE!

The electrical connection for the units must be made at a separate feedpoint with a residual current device in accordance with local regulations and should be laid out by an electrician.

Check all plugged and clamped terminals to verify that they are seated correctly and make permanent contact. Tighten as required.

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.

Electrical connection - indoor

9.2 module

The following instructions describe the electrical connection of the WKF and WKF-compact series indoor modules.

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.

At the site, avoid adding cable inlets.

Electrical connection - outdoor

9.3 module

n For the electrical connection loose the right

side cover by loosening the screws.

NOTICE!

Attach cables in accordance with the connection schematic and/or the circuit diagram in the control box.

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.

Fig. 48: Serie WKF/WKF-compact 120 - Remove the cover by loosening the screws.

1: screw

Fig. 49: Series WKF/WKF-compact 180 - Remove the cover by loosening the screws.

1: screw

Make sure to use enough cable when installing the indoor unit so that the control box can be fully lowered for future maintenance.

n Electrical protection for the system is imple-

mented 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.

REMKO WKF / WKF-compact

n Connect the two-wire control cable to terminals

F1, F2 and the earth terminal.

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. 50: Connection terminals - outdoor module WKF/WKF-compact 120

1: Power supply 230V/1~ /50Hz

Fig. 51).

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 indoor-

module switching-cabinet according to the terminal-assignment diagram.

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. Subse-

quently a thermal compound (A) is applied and the sensor is fixed in position.

Fig. 51: 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.

Fig. 52: 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.

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. 53: External sensor

2nd mixed heating cycle

Mixing valve 230 V

Closed Open

Closed

Open ClosedOpen

Bypass valve

Indoor unit 230 V

1st mixed heating cycle

Mixing valve 230 V

Circulation pump Hot water 230 V

Unmixed heating cycle Pump 230 V (optional)

1st mixed heating cycle

Pump 230 V

Pump solar 230 V

unregulated

Changeover valve

Pump, cooling

Pump 230 V

2nd mixed heating cycle

Not assigned

Changeover valve

2. Heat generator (BVT)

Changeover valve

Hot water preparation

Power supply

230 V

Power supply

Internal pump - indoor unit

Power supply I/0 module

Communication

Outdoor unit

2 x 1.5 mm2

Power supply

Indoor unit

3 x 1.5 mm2

Terminal block X1.1

Assigned

Mains voltage connection provided by

the customer (bauseitig) from sub-distribution!

Mains voltage connection provided by the customer (bauseitig) from sub-distribution!

Outdoor unit

WKF 120 / WKF 120 Duo

230V/1~/N/Pe

E.g. 3 x 2.5 mm2

Outdoor unit

WKF 180 / WKF 180 Duo

400V/3~/N/Pe

E.g. 5 x 1.5 mm2

Electric heating coil 9kW

Mains voltage

400V/3~/N/Pe

E.g. 5 x 2.5 mm2

Plug on the heating coil

Potential-free A34.1 General

alarm signal A33.1 no function

A32.1 enable

2. WE Smart BVT/Serv

A31.1 no function

A30.1 no function

Refrigerant

A24/25.1

S07.1

Solar return flow

S04.1

Solar storage tank, bottom

S02.1

Solar collector

S01.1

Medium flow rate HP

S24.1

Medium flow rate solar

S23.1

Not connected

A22/23.1

A20/21.1

A04.1

A03.1

A02.1

A01.1

A14.1

A13.1

A12.1

A11.1

A10.1

NOTE: without blocking contactor, jumper must be inserted Closed = enable

Energy supply provider contact

S16.1

Heat pump RF

S15.1

2nd mixed heating cycle RF

S14.1

Coding resistor

RC.1

Heat pump inlet

S13.1

Communication Com-Kit 1

B2/A2

1st mixed heating cycle RF

S11.1

1st mixed Heating cycle inlet

S12.1

Operating module SMT 1

B1/A1

Outside temperature

S10.1

Storage tank, centre

S09.1

Hot water probe

S08.1

2nd mixed Heating cycle inlet

S06.1

Pump 0-10V

A46.1

2nd mixed Heating cycle

Circulation

S05.1

Temperature or impulse

Solar probe inlet

S03.1

Pump 0-10V (indoor unit)

A43.1

Pump 0-10V (HGU)

A42.1

Unmixed Heating cycle

Pump 0-10V (HGM)

A41.1

1st mixed Heating cycle

Speed setting PWM

A40.1

Solar pump

S29.1/GND

S28.1/GND

S27.1/GND

S26.1/GND

S25.1/GND

S0 PV feed-in (min. 500 lmp./kWh)

S0 PV yield (min. 500 lmp./kWh)

S0 household meter (min. 500 lmp./kWh)

S0 HP electricity meter (min. 500 lmp./kWh)

Not connected

SMT I/0 01

REMKO WKF / WKF-compact

9.4

Electrical configuration - I/0 module

Use wire gauge corresponding with the connection cable supplied! Lay load lines separately to measuring lines!

9.5

Terminal assignment / legend

Terminal assignment

Terminal Input Output Signal Connection layout

PW X Power supply I/O 230V

PP X Power supply primary pump indoor module

S01 X Probe solar collector

S02 X Probe solar upper storage tank

S03 X Probe solar inlet WMZ solar

S04 X Probe solar return WMZ solar

S05 X Circulation return temp./Impuls

S06 X Not connected

S07 X Solar / pool / 2 storage tank

S08 X Storage tank domestic water

S09 X Unregulated 3. heat generator middle storage tank

S10 X External sensor

S11 X Heating cycle 2 mixer circuit return

S12 X Heating cycle 2 mixer circuit VL

S13 X Heat pump inlet

S14 X Without function

S15 X Heat pump return

S16 X

S20 X General alarm signal outdoor module

S21 X Operation compressor

S22 X Operation defrost

S23 X Ultrasonic flow rate meter solar, impulse rate

S24 X Ultrasonic flow rate meter heat pump, impulse rate

S25 X Heat pump electricity meter S0

S26 X Household electricity S0

S27 X Gas meter S0

S28 X PV yield electricity meter S0

EVU contact (opener) / Dew point monitoring (external)

S29 X PV power suplly electricity meter S0

A01 X Unregulated solar pump ( 230 V )

A02 X Pump heating cycle floor (230 V)

A03 X Pump heating cycle radiator (230 V)

A04 X Circulation pump

A10 X Changeover valve domestic water

REMKO WKF / WKF-compact

Terminal Input Output Signal Connection layout

A11 X Changeover valve 2. heat generator

A12 X Changeover valve solar / 2. storage tank pool

A13 X Not connected

A14 X Changeover valve / pump cooling

A20 X HK2 mixer open

A21 X HK2 mixer closed

A22 X Bypass mixer open

A23 X Bypass mixer closed

A24 X Changeover valve solar heating (open)

A25 X Changeover valve solar heating (close)

A30 X Heat pump emergency stop (outdoor module)

A31 X Heat pump heating / cooling (operating mode)

A32 X

A33 X Enable compressor

A34 X Without function

A40 X Speed specification solar pump PWM

A41 X Speed specification heating cycle floor (0-10V)

A42 X Speed specification heating cycle radiator-10V)

A43 X

A44 X Setpoint specification outdoor module 0-10V

A45 X

A46 X Not connected

CLK

Enable 2. heating generator auxillary heater or vessel

Speed specification primary pump indoor module 0-10V

Speed specification pump heating cycle floor (secondery circuit / system separation)

Without function

nSS

GND

OT 1 (2x) Opentherm 2 heating generator Interface

OT 2 (2x) Not connected

B1,A1,GND

Operating module

+12 Volt,

B2 / A2 RS 485_2

B3 / A2 RS 485_3

R RC coding resistor, WKF 85/120/180

SD Card

Fuse 10A T

Ethernet

stupnI rosneSstupnI rosneS stupnI rosneSstupnI rosneS

Potential Free Outputs

Sensor Inputs nI suBecafretnI TOIPSlangiS rotautcAlangiS rotautcA terface Rc

Actuator Outputs

Actuator OutputsActuator SupplyPOWER

230V

supply

PW /3.4

N L

230V

supply

Internal pump

PP1 /12.1

N L

230V

supply

Terminal block

X1.2

PP2

N L

Changeover valve 230V

Hot water preparation

A10 /9.8

A10

Changeover valve 230V

2. heat generator

A11 /9.10

A11

A12

Pump 230V

2nd mix. heating cycle

A13 /10.1

A13

Changeover valve / 230V

Cooling

A14 /10.3

A14

Pump 230V

Solar cycle

A01 /9.1

A01

Pump 230V

1st mix. heating cycle

A02 /9.3

A02

Pump 230V

unmix. Heating cycle

A03 /9.4

A03

Pump 230V

Domestic water circulation

A04 /9.6

A04

Mixing valve 230V

A20/A21 /10.6

A20

1st mix. heating cycle

A20/open

A21

A21/closed

Mixing valve 230V

A22/A23 /10.8

A22

Bypass

A22/open

A23

A23/closed

Mixing valve 230V

A24/A25 /10.10

A24

2nd mix. heating cycle

A24/open

A25

A25/closed

In A30

In A31

Potential-free

2. heat generator

A32

/11.1

A32

In A33

Potential-free

General alarm signal

A34

/11.3

A34

S25

Electricity meter S0

Heat pump

S25/8.2

5V GND

S26

Electricity meter S0

Household

S26/8.4

5V GND

S27 5V GND

S28

Electricity meter S0

PV yield

S28/8.7

5V GND

S29

Electricity meter S0

PV feed-in

S29/8.9

5V GND

GND Pump PWM

Solar cycle

A40/11.5

A40

GND Pump 0-10V

1st mix. heating cycle

A41/11.7

A41

GND Pump 0-10V

unmix. heating cycle

A42/11.10

A42

GND Pump PWM

Internal

A43/12.3

A43

GND A44

GND A45

GND Pump 0-10V

2nd mix. heating cycle

A46/12.5

A46

MI MO CLK nSS GND

OT1 OT1

OT2 OT2

12V Communication

Operating module

BUS1/4.7

B1 A1 GND

B2 Communication

Com-Kit

BUS2/4.8

B3 A3

Coding resistor

WKF 120 / WKF 180

RC/7.7

GND

S20 5V GND S40 S41

S21 5V GND S42 S43

S22 5V GND S44 S45

S23

Medium flow rate

Solar

S23/7.5

5V GND S46 S47

S24

Medium flow rate

Heat pump

S24/6.8

5V GND S48 S49

S01 Probe PT1000

Collector

S01/5.0

GND

S02 Probe PT1000

Storage tank, bottom

S02/5.2

GND

S03 Probe PT1000

Solar inlet

S03/5.3

GND

S04 Probe PT1000

Solar return

S04/5.5

GND

S05 Probe PT1000 /

Impulse sensor

Circulation

S05/5.6

GND

S06 Probe PT1000

2nd mix. heating cycle inlet

S06/5.9

GND

S07 Probe PT1000

Refrigerant

S07/5.10

GND

S08 Probe PT1000

Storage tank, top

S08/6.0

GND

S09 Probe PT1000

Storage tank, centre

S09/6.2

GND

S10 Probe PT1000

Outside temperature

S10/6.3

GND

S11 Probe PT1000

1st mix. heating cycle return

S11/6.5

GND

S12 Probe PT1000

1st mix. heating cycle inlet

S12/6.6

GND

S13 Probe PT1000

Heat pump inlet

S13

GND

S14 Probe PT1000

2nd mix. heating cycle return

S14/6.10

GND

S15 Probe PT1000

Heat pump return

S15/7.1

GND

S16

Open contact

Energy supplier utility disable

S16/7.3

GND

SMT I/O 1

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

001

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

1.0

ateisch

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

7/25/2012

Blatt

Anlage

mweiss

Overview SMT I/O

Version

Kunde: Remko

vlöchte

WKF RS485

Projekt:

10/20/2014

Bearbeitet

4/47

Ersatz für

WKF RS485

9.6

Circuit diagrams

Communication main board

Communication

SMT I/O 1

230V Supply transformer

230V Supply

15V ~

Control board Com-Kit

CN72.1 CN71.1 CN11.1

CN33.1

CN31.1

CN32.1

1 2 3 4

ON ON

4 3 2 1

Set all display switches to ON

Set selector

switch to 0!

Set selector switch depending

on the outdoor unit

WKF120 -> 1

WKF180 -> 2

WKF120 -> 1

WKF180 -> 2

-ComKit

Com-Kit board

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

001

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

1.0

ateisch

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

7/20/2012

Blatt

Anlage

mweiss

Overview Com-Kit

Version

Kunde: Remko

vlöchte

WKF RS485

Projekt:

10/13/2014

Bearbeitet

5/47

Ersatz für

WKF RS485

REMKO WKF / WKF-compact

-X1.1

1 3

-Com-Kit

CN71.1

230V

L N

L N PE

-SMTIO

230V

supply

1 2

3 4

-T1

1 3

-Com-Kit

CN72.1

230V

1 3

-Com-Kit

CN11.1

15V~

-Supply Com-Kit

-Supply SMT I/O

gnge

-Supply transformer

-Transformer 15 V

2rt

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

001

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

1.0

mweiss

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

12/17/2013

Blatt

Anlage

mweiss

Supply

Version

Kunde: Remko

vlöchte

WKF RS485

Projekt:

10/13/2014

Bearbeitet

6/47

Ersatz für

WKF RS485

GND

S51

+12V

GND

-SMT1

GND

S51

+12V

GND

-SMT2

GND

S51

+12V

GND

-SMT3

12VB1 A1GND

-SMTIO

BUS1

Communication

1 2

-Com-Kit

CN33.1

RS485

-SMTIO

BUS2

Communication

1 2

-Com-Kit

CN31.1

RS485

-X1.1

-BUS line

-SMT I/O - Com-Kit

-Com-Kit - AM

REMKO Smart-Control remote controls

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

001

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

1.0

mweiss

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

12/17/2013

Blatt

Anlage

mweiss

Communication

Version

Kunde: Remko

vlöchte

WKF RS485

Projekt:

10/13/2014

Bearbeitet

7/47

Ersatz für

WKF RS485

REMKO WKF / WKF-compact

S01 GND

-SMTIO

S01

Probe PT1000



-S01

PT1000

S02 GND

-SMTIO

S02

Probe PT1000



-S02

PT1000

S03 GND

-SMTIO

S03

Probe PT1000



-S03

PT1000

S04 GND

-SMTIO

S04

Probe PT1000



-S04

PT1000

S05 GND

-SMTIO

S05

Probe PT1000 /

Impulse sensor



-S05

PT1000

-S05

S06 GND

-SMTIO

S06

Probe PT1000



-S06

PT1000

S07 GND

-SMTIO

S07

Probe PT1000



-S07

PT1000

Collector probe

-Solar, tank storage

bottom

-Solar inlet

-Solar return flow

-Circulation

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

001

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

1.0

mweiss

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

12/17/2013

Blatt

Anlage

mweiss

Probes

Version

Kunde: Remko

vlöchte

WKF RS485

Projekt:

10/13/2014

Bearbeitet

8/47

Ersatz für

WKF RS485

Circulation, elective

Temperature or impulse

controlled via a flow switch

-Refrigerant

Refrigerant - liquid

Circulation

Impulse sensor

CirculationSolar return flowSolar inlet

Collector probe Storage tank, bottom

S08 GND

-SMTIO

S08

Probe PT1000



-S08

PT1000

S09 GND

-SMTIO

S09

Probe PT1000



-S09

PT1000

S10 GND

-SMTIO

S10

Probe PT1000



-S10

PT1000

S11 GND

-SMTIO

S11

Probe PT1000



-S11

PT1000

S12 GND

-SMTIO

S12

Probe PT1000



-S12

PT1000

S245V

GND

-SMTIO

S24



1 2 3 4 5

-S24/S13

Imp. / PT1000

S13 GND

S13.1

Probe PT1000

S14 GND

-SMTIO

S14

Probe PT1000



-S14

PT1000

-Inlet SMTIO

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

001

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

1.0

mweiss

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

12/17/2013

Blatt

Anlage

mweiss

Probes

Version

Kunde: Remko

vlöchte

WKF RS485

Projekt:

10/13/2014

Bearbeitet

9/47

Ersatz für

WKF RS485

Medium flow rate

- 2nd mix. HC RF

- 1st mix. heating cycle inlet

-1st mix. heating cycle RF

-Outside temperature

-Buffer, storage tank centre

-Hot water

HW, storage tank top

Buffer, storage tank centre

External probe

1st mix. heating cycle return flow

1st mix. heating cycle inlet

Medium flow rate / inlet probe

2nd mix. heating cycle return flow

REMKO WKF / WKF-compact

S15 GND

-SMTIO

S15



-S15

PT1000

S16 GND

-SMTIO

S16

EVU

-S16

S23 GND

-SMTIO

S23

-S23

Imp.

R GND

-SMTIO

-RC

XX Ohm

-Return flow SMTIO

WKF120 Master --> 130 Ohm

WKF180 Master --> 110 Ohm

WKF120 Master --> 130 Ohm

WKF180 Master --> 110 Ohm

Brown, orange, black, black

Brown, brown, black, black

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

001

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

1.0

mweiss

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

12/17/2013

Blatt

Anlage

mweiss

Probes

Version

Kunde: Remko

vlöchte

WKF RS485

Projekt:

10/20/2014

Bearbeitet

10/47

Ersatz für

WKF RS485

Coding resistor

Medium flow rate

- Medium flow rate solar

Open contact

Energy supplier contact

Opener

A parameter set is loaded

according to the value of the

coding resistor.

Coding resistor

At 5 color-rings in accordance with DIN 41429

(5th Ring = tolerance)

Probe PT1000

Medium flow rate solar

Dewpoint monitoring

provided by the customer

Return flow probe

kWh

1 2

4 5

S0+

S0-

-S25

Imp.

S25 5V GND

-SMTIO

S25

kWh

1 2

4 5

S0+

S0-

-S26

Imp.

S26 5V GND

-SMTIO

S26

kWh

1 2

4 5

S0+

S0-

-S28

Imp.

S28 5V GND

-SMTIO

S28

kWh

1 2

4 5

S0+

S0-

-S29

Imp.

S29 5V GND

-SMTIO

S29

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

001

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

1.0

mweiss

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

12/17/2013

Blatt

Anlage

mweiss

Probes

Version

Kunde: Remko

vlöchte

WKF RS485

Projekt:

10/13/2014

Bearbeitet

11/47

Ersatz für

WKF RS485

Electricity meter S0Electricity meter S0Electricity meter S0Electricity meter S0

Heat pump current Domestic electricity

PV yield

PV feed-in

REMKO WKF / WKF-compact

A01 N PE

-SMTIO

A01

U N

-A01

A02 N PE

-SMTIO

A02

U N

-A02

A03 N PE

-SMTIO

A03

U N

-A03

A04 N PE

-SMTIO

A04

U N

-A04

PE N A10 L

-SMTIO

A10

N DP SP

-A10

PE N A11 L

-SMTIO

A11

N DP SP

-A11

gnge

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

001

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

1.0

mweiss

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

12/17/2013

Blatt

Anlage

mweiss

Actuators

Version

Kunde: Remko

vlöchte

WKF RS485

Projekt:

10/13/2014

Bearbeitet

12/47

Ersatz für

WKF RS485

-Valve 2nd

heat generator

-Valve HW

-Circ. pump

-Pump unmix. HC

-Pump 1st mix. HC

-Solar pump

Pump 230V Pump 230V Pump 230V Pump 230V Changeover valve 230V Changeover valve 230V

2. heat generator

Changeover valveChangeover valve

Hot water

PumpPump

Circulation / unregulated

unmix. heating

cycle / unregulated

Pump

1st mix. heating

cycle / unregulated

Pump

Solar / unregulated

PE N A13 L

-SMTIO

A13

N U

-A13

PE N A14 L

-SMTIO

A14

N DP SP

-A14

Cooling

U N

-A14.

Pump

PE N A20 A21

-SMTIO

A20/A21

N Auf Zu

-A20/A21

Mixing valve

PE N A22 A23

-SMTIO

A22/A23

N Auf Zu

-A22/A23

Bypass

PE N A24 A25

-SMTIO

A24/A25

N Auf Zu

-A24/A25

-Cooling

gnge

-Bypass

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

001

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

1.0

mweiss

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

12/17/2013

Blatt

Anlage

mweiss

Actuators

Version

Kunde: Remko

vlöchte

WKF RS485

Projekt:

10/13/2014

Bearbeitet

13/47

Ersatz für

WKF RS485

Mixing valve 230VMixing valve 230VMixing valve 230VPump 230V

Changeover valve

/pump 230V

-Mixing valve HC 1

-Pump cooling

Pump

2st mix. heating

cycle / unregulated

Changeover valve

Cooling

1st mix. heating cycle

Mixing valve Mixing valve

2st mix. heating cycle

-Mixing valve HC 2

REMKO WKF / WKF-compact

A32

-SMTIO

A32

HZG

-X1

A34

-SMTIO

A34

-Xx

-X

N PE

A40 GND

-SMTIO

A40

Pump PWM

U N

-A40

Pump

Solar cycle

-X

N PE

A41 GND

-SMTIO

A41

Pump 0-10V

U N

-A41

Pump

1. mixed heating cycle

-X

A42 GND

-SMTIO

A42

Pump 0-10V

U N

-A42

Pump

unmix. heating cycle

-Voltage A40

gnge

- Pump solar cyle

-Voltage A41

gnge

-1. mix. heating cycle

-Voltage A42

gnge

- Unmix. heating cycle

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

001

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

1.0

mweiss

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

12/17/2013

Blatt

Anlage

mweiss

Actuators

Version

Kunde: Remko

vlöchte

WKF RS485

Projekt:

10/13/2014

Bearbeitet

14/47

Ersatz für

WKF RS485

Potential-free Potential-free

Collective fault facility

L N PE

-SMTIO

PP1

230V supply

U N

-A43

Pump

internal

A43 GND

-SMTIO

A43

Pump PWM

-X

A46 GND

-SMTIO

A46

Pump 0-10V

U N

-A46

Pump

2nd mixed heating cycle

-Voltage A43

gnge

-Interne Pumpe SMT I/O 1

-Voltage A46

gnge

-2nd mixed heating cycle

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

001

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

1.0

mweiss

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

12/17/2013

Blatt

Anlage

mweiss

Auctuators

Version

Kunde: Remko

vlöchte

WKF RS485

Projekt:

10/20/2014

Bearbeitet

15/47

Ersatz für

WKF RS485

REMKO WKF / WKF-compact

-X2

L1 (a)

-X2

N (a)

-X2

L1 (b)

-X2

N (b)

-X2

L1 (c)

-X2

N (c)

-X2

-X1

N-ST

-X1

L-ST

-X1

-K1

1 20

L-ST L1 N-ST N-LL

L N

-SN1

-R5

-H1

1L1

2T1

-K1

STB 95°C



30°C - 78°C

3L2

4T2

5L3

6T3

1L1 2T1

3L2 4T2

5L3 6T3

13 14

Geändert:

Ersetzt durch

Standard

Erstellungsdatum

Ursprung

Zeichner

Geprüft:

Ausgabedatum:

Blatt Titel

Projekt Titel

mweiss

Status:

2 3 4

6 7

9 10 11

1 2 3

5 6 7

Blatt/tot.

9/30/2014

Blatt

Anlage

mweiss

3x 230V 1~

Version

Kunde:

Smart WP

Projekt:

9/30/2014

Bearbeitet

4/43

Ersatz für

Heating coil

REMKO WKF / WKF-compact

Legend for circuit diagrams

Color codes: bl: blue br: brown ge: yellow gn: green rt: red sw: black ws: white Other abbreviations: EVU: Utility Gem.: Mixed HK: Heating cycle HZG: Heater Imp.: Impulse PV: Photovoltaics PWM: Pulse width modulation RL: Return Ungem.: Unmixed VL: Inlet WW: Hot water Zirk. Circulation

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 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.

2 2

Overview of the controls

Fig. 54: 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

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. 55: Function of the keys

REMKO WKF / WKF-compact

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.

Care and maintenance

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.

In "Standby" , the heat pump is in standby mode. Of the entire system, only the frost-protection function s activated.

Temporary shut-down

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.

13.1

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 Possible causes Remedial measures

The heat pump does not start or switches itself off

Troubleshooting and customer service

Power outage, under-voltage Check the voltage and, if necessary,

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 off-

Operational temperature limits too low or too high

Set-point temperature exceeded Incorrect mode

wait for it to come back on

period is over and the heat pump starts up as required

Observe temperature ranges

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.

Heat circuit pump fails to switch off

Heat circuit pumps fail to switch on

Red indicator lamp Failure outdoor module Contact customer service

Incorrect pump switching Arrange to have pump switching

checked in "heating circuit" expert level

Incorrect mode set Check mode

Control PCB fuse in indoor module switching cabinet faulty

Incorrect heating program set Check heating program We recom-

Temperature overlapping, e.g. external temperature greater than room temperature

Exchange the fuse on the left side of the control PCB

mend the operating mode "heat" in the cold heating season

Observe temperature ranges

REMKO WKF / WKF-compact

Outdoor module error display

Fig. 56: Display on outdoor moduleWKF/WKF-compact 120/180

1: Display

Disp. screen

E177

E201

E202

E203

E221

E231

E251

E320

E403

E404

E416

E440

E441

LED Display

l l

(+)

Z m

m m

Z m

Board Meaningred green yellow

HP Emergency mode

HP Incorrect communication kit board

HP Communication interruption between OM and IM

INV Communication interruption between OM and IM

HP/INV 1 Min. no communic. between HP- und INV-circ. board

HP Error in the external temperature sensor

HP Error in the evaporator sensor

HP Error in the hot gas temperature sensor

HP Error in the overload protection sensor

HP Icing on compressor. Stop

HP Overload protection for compressor. Stop

HP Compressor overheated

HP Overheating evaporator (air intake temperature to high)

HP Cooling mode is not possible; Outdoor temp. < -15°C

E458

E475

E461

E464

E465

E466

E467

E468

E471

E554

l = on / Z = flashing / m = off / HP = Motherboard / INV = Inverter circuit board

m m

m Z m

Z m m

Z Z

Z m

HP/INV Error BLDC-Fan 1

HP/INV Error BLDC-Fan 2

HP/INV Compressor start-error

HP/INV Compressor, circuit board

HP/INV Compressor overload-error

HP/INV Over-/undervoltage

HP/INV Compressor - "no cable"

HP/INV Current sensor error

HP Error EEPROM

HP Refrigerant loss

Messages, warnings and errors displayed on the SmartControl

Messages

ID Description Details

6000

6001 DHW preparation There is no active requirement to charge the storage tank.

6002

6005 Internal pump lead time The internal pump runs at a reduced speed during the pump lead time.

6006

6007 Min. holding time The heat pump is disabled due to a minimum holding time.

6008 Disable signal S16 The heat pump is disabled due to a disable signal.

6020

6105 Defrost heat pump Defrost heat pump

6107

6108

6109

Storage tank 1: Max. temperature reached

Heat pump compressor start

Switching cycle disabled

Internal pump after-run time

Anti-freeze protection active

Random delay after power failure

Outdoor temp. Heat pump usable limit

The temperature on one of the probes in storage tank 1 is higher than the maximum permitted

Heat pump compressor start

The heat pump was disabled in order to reduce the compressor's switching cycles.

The internal pump runs at a reduced speed during the pump after-run time.

Anti-freeze protection active

Random delay after power failure (up to 200 seconds after power returns)

- the purpose of the

Outdoor temp. Heat pump usable limit - the heat pump is disabled due to the usable limits being

6111

6113 Solar heating Solar heating - heat generators are disabled

Warnings

ID Description Details

8102

8103

8107 Compressor status

8132

8138

8139

Heat pump bivalence temperature

Temperature discrepancy in solar cycle

Overnight collector temperature

Anti-freeze protection active

HW storage tank set temp.

Lower application area (heating)

Heat pump bivalence temperature - the heat pump is disabled because the temperature has

The collector temperature is at least 60K higher than the storage tank temperature.

A collector temperature of at least 45 °C (113 °F) occurred overnight.

The active operating mode is safety mode because the compressor is active without demand.

The anti-freeze protection function is currently active - check the room climate mode set.

The hot water storage tank set temperature was reduced due to low outside temperatures.

The temperature has currently dropped below the guaranteed application area of the external

8140

Upper application area (heating)

The guaranteed application area of the external unit in heating mode is currently exceeded.

REMKO WKF / WKF-compact

ID Description Details

8141

8142

8223 SD card error (host)

8224 SD card error SD card error (CP): The SD card is not inserted or an error has occurred.

8225

8226

8227

8229

Error

ID Description Details

Lower application area (cooling)

Upper application area (cooling)

CP dew point monitoring

Temp. dropped below min. inlet temp.

Hygiene function: Setpoint not reached

2nd Heat generator active

The temperature has currently dropped below the guaranteed application area of the external

The guaranteed application area of the external unit in cooling mode is currently exceeded.

SD card error (host): The SD card is either not inserted correctly or an error has occurred.

Dew point monitoring was activated but no control panel (with integrated humidity and

Temp. dropped below min. inlet temp. (or dew point) - cooling request is suppressed

The hygiene function was cancelled due to the maximum runtime being reached before attaining

Due to the return temperature being too low during defrosting, the 2nd heat generator was

7050 Anti-freeze protection

Open contact - storage

7200

7201

7202

7203

7204

7205

7206

7207

tank 1 bottom probe S02

Short circuit - storage tank 1 bottom probe S02

Open contact - storage tank 1 middle probe S09

Short circuit - storage tank 1 middle probe S09

Open contact - storage tank 1 top probe S08

Short circuit - storage tank 1 top probe S08

Open contact - external probe S10

Short circuit - external probe S10

The anti-freeze protection in the heat pump's heat exchanger was triggered due to an inlet

Open contact - storage tank 1 bottom probe

Short circuit - storage tank 1 bottom probe

Open contact - storage tank 1 middle probe

Short circuit - storage tank 1 middle probe

Open contact - storage tank 1 top probe

Short circuit - storage tank 1 top probe

Open contact - external probe

Short circuit - external probe

7210

7211

Open contact - circulation temp. probe S05

Short circuit - circulation temp. probe S05

Open contact - drinking water circulation temperature probe

Short circuit - drinking water circulation temperature probe

ID Description Details

7212

7213

7218

7219

7236

7237

7238

7239

7250 Min. medium flow rate

Open contact - inlet temp. probe S13

Short circuit - inlet temp. probe S13

Open contact - collector 1 probe S01

Short circuit - collector 1 probe S01

Open contact - mix. heating cycle inlet temp. probe S12

Short circuit - mix. heating cycle inlet temp. probe S12

Open contact - mix. heating cycle return temp. probe S11

Short circuit - mix. heating cycle return temp. probe S11

Open contact - inlet temp. probe

Short circuit - inlet temp. probe

Open contact - collector 1 probe

Short circuit - collector 1 probe

Open contact - mixed heating cycle inlet temperature probe

Short circuit - mixed heating cycle inlet temperature probe

Open contact - mixed heating cycle return temperature probe

Short circuit - mixed heating cycle return temperature probe

The medium flow rate fell below the heat generator's minimum medium flow rate.

7251 Min. medium flow rate

7252

7276 Restart required

7283

7284

7286 Rc coding error

7333

Heat pump fault message S20

Open contact - WE return temp. probe S15

Short circuit - WE return temp. probe S15

Negative temp. difference

The medium flow rate fell below the heat pump's minimum medium flow rate due to defrosting

Heat pump fault message

Due to the changed system (setting / coding resistor), the controller has to be restarted -

Open contact - WE return temperature probe

Short circuit - WE return temperature probe

A unique unit identifier could not be assigned using the coding resistor at the Rc terminal.

The temperature difference when the heat generator is active is implausible.

REMKO WKF / WKF-compact

13.2

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

3. Set the thermostat on the electrical terminal

4. Turn the rotary switch on the primary pump

5. If you are using external heating cycle groups

6. If you are using external heating cycle groups

7. Remove the servo motor of the three-way

8. Pull the motor away from the valve body.

9. Turn the cylindrical ball valve in the direction

Emergency-heat operation

box (located on the left-hand side) for the auxiliary heater to "position 2".

box of the auxiliary heater to the desired temperature, e.g. floor heating 35°C, heating element 50°C.

(Wilo) clockwise to roughly the "5 o'clock" position.

(pumps), they must also be provided with a separate power supply.

(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.

changeover valve by pulling out the safety split pin between motor and valve body (see separate "Three-way changeover valve" operating instructions).

of Outlet B using the round side (floor heating side or heating element).

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 outdoor 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.

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.

Fig. 57: 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

18 19

14.1

Exploded view and spare parts

Exploded view outdoor modules WKF/WKF-compact 120

Fig. 58: Exploded view outdoor modules WKF/WKF-compact 120

REMKO WKF / WKF-compact

Spare parts list outdoor module WKF/WKF-compact 120

Nr. Designation WKF 120 WKF-compact 120

WKF 120

WKF-compact

120

Smart BVT From series:

Smart Serv From series:

EDV-Nummer EDV-Nummer EDV-Nummer

1 Compressor 1120450 1120450 1120450

2 Laminated heat-exchanger 1120451 1120451 1120451

3 Four-way change over valve 1120452 1120452 1120452

4 Shut-off valves 1120453 1120453 1120453

5 Fan blade 1120454 1120454 1120454

6 Cover panel 1120455 1120455 1120575

7 Side panel, left front 1120456 1120456 1120576

8 Grid, front 1120338 1120338 1120577

9 Side panel, right front 1120457 1120457 1120578

10 Mounting corner, right front 1120478 1120478 1120579

11 Side panel, right rear 1120458 1120458 1120580

1296G

5001...

1296G

8001...

1296G

5001...

1296G

8001...

1295G

5001...

1295G

8001...

12 Grid, rear 1120459 1120459 1120581

13 Mounting corner, right rear 1120481 1120481 1120582

14 Fan motor 1120482 1120482 1120482

Evaporator sensor /

compressor set sensor

Hot gas sensor /

outdoor temperature set sensor

16 Electronic expansion valve 1120463 1120463 1120463

17 Main board with display 1120464 1120464 1120464

18 Inverter board 1120465 1120465 1120465

19 EMI board 1120466 1120466 1120466

Spare parts (not illustrated)

Transformer 1120462 1120462 1120462

When ordering spare parts, please state the computerised part no., device number and device type (see type plate)!

1120460 1120460 1120460

1120461 1120461 1120461

16 20

14.2

Exploded view outdoor modules WKF/WKF-compact 180

Fig. 59: 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.

REMKO WKF / WKF-compact

Spare parts list outdoor module WKF/WKF-compact 180

Nr. Designation WKF 180 WKF-compact 180

WKF 180

WKF-compact

180

Smart BVT From series:

Smart Serv From series:

EDV-Nummer EDV-Nummer EDV-Nummer

1 Compressor 1120470 1120470 1120470

2 Laminated heat-exchanger 1120471 1120471 1120471

3 Four-way change over valve 1120472 1120472 1120472

4 Shut-off valves 1120473 1120473 1120473

5 Fan blade 1120474 1120474 1120474

6 Cover panel 1120475 1120475 1120567

7 Side panel, left front 1120476 1120476 1120568

8 Fan protection guard 1120338 1120338 1120569

9 Side panel, right front 1120477 1120477 1120570

10 Mounting corner, right front 1120478 1120478 1120571

11 Side panel, right rear 1120479 1120479 1120572

1271G

5001...

1271G

8001...

1271G

5001...

1271G

8001...

1297G

5001...

1297G

8001...

12 Grid, rear 1120480 1120480 1120573

13 Mounting corner, right rear 1120481 1120481 1120574

14 Fan motor 1120482 1120482 1120482

Evaporator sensor/

compressor set sensor

Hot gas sensor /

outdoor temperature set sensor

16 Transformer 1120485 1120485 1120485

17 Electronic expansion valve 1120486 1120486 1120486

18 Main board with display 1120487 1120487 1120487

19 Inverter board 1120488 1120488 1120488

20 EMI board 1120489 1120489 1120489

When ordering spare parts, please state the computerised part no., device number and device type (see type plate)!

1120483 1120483 1120483

1120484 1120484 1120484

14.3

Exploded view indoor modules WKF 120/180

Fig. 60: Exploded view indoor modules WKF 120/180

We reserve the right to modify the dimensions and constructional design as part of the ongoing technicaldevelopment process.

REMKO WKF / WKF-compact

Spare parts list indoor module WKF 120/180

Nr. Designation WKF 120 WKF 180

Smart BVT From series:

Smart Serv From series:

EDV-Nummer EDV-Nummer

1 Front panel / cover 1120901 1120901

2 Cover 1120902 1120902

3 Control box 1120915 1120915

4 I/O module SMT 1120650 1120650

5 Control panel Smart-Control 248100 248100

6 Plate heat exchanger 1120940-1 1120941-1

7 Safety assembly 1120010 1120010

8 Actuator bypass valve 1120913 1120913

9 Valve body bypass valve 1120913-1 1120913-1

10 Auxillary heater 9 kW, 400V/3~/50 Hz 260066 260066

11 Actuator 3-way-valve 1120912 1120912

1268G

5001...

1268G

8001...

1270G

5001...

1270G

8001...

12 Valve body 3-way-valve 1120912-1 1120912-1

13 Ultrasonic flow rate meter 1120914 1120914

14 Grundfos UPML 25-105 (PWM) 1121304 1121304

15 Actuator 3-way-valve bivalent operation 1120912 1120912

16 Valve body 3-way-valve bivalent operation 1120912-1 1120912-1

17 Terminal blocks 1120922 1120922

18 Pillar block pipe group 1120904 1120904

19 Control board Comkit 1120999 1120999

22 Ball valve for filling/drainage 1120905 1120905

23 Bleeder 1/4“ 1120059 1120059

Spare parts (not illustrated)

Cable loom complete indoor module 1121055 1121055

Liquid sensor, cooling circuit / return / inlet-set 1120306 1120306

2 x SD card 4.18 (act. softw. witho. Smart Web,Smart Count) 1120985 1120985

Coding resistor 130/110 Ohm 1121052 1121053

Pt1000 1,5m long (S15) 1120930 1120930

Transformer for Comkit board 1120935 1120935

Assembly auxiliary heater 9 kW including flow rate meter 1120942 1120942

User manual 1120984 1120984

9 12

101113

18 17

20 3

22 5

14.4

Exploded view indoor modules WKF-compact 120/180

Fig. 61: Exploded view indoor modules WKF-compact 120/180

We reserve the right to modify the dimensions and constructional design as part of the ongoing technicaldevelopment process.

REMKO WKF / WKF-compact

Spare parts list indoor module WKF-compact 120/180

Nr. Designation

Smart BVT From series:

Smart Serv From series:

EDV-Nummer EDV-Nummer

1 Front panel / cover 1120901 1120901

2 Cover 1120902 1120902

3 Floor panel 1120903 1120903

4 Side plate storage tank 1120906 1120906

5 Control box 1120915 1120915

6 I/O module SMT 1120650 1120650

7 Control panel Smart-Control 248100 248100

8 Plate heat exchanger 1120940-1 1120941-1

9 Safety assembly 1120010 1120010

10 Actuator bypass valve 1120913 1120913

WKF-compact

120

1268G

5001...

1268G

8001...

WKF-compact

180

1270G

5001...

1270G

8001...

11 Valve body bypass valve 1120913-1 1120913-1

12 Auxillary heater 9 kW, 400V/3~/50 Hz 260066 260066

13 Actuator 3-way-valve 1120912 1120912

14 Valve body 3-way-valve 1120912-1 1120912-1

15 Ultrasonic flow rate meter 1120914 1120914

16 Grundfos UPML 25-105 (PWM) 1121304 1121304

17 Actuator 3-way-valve bivalent operation 1120912 1120912

18 Valve body 3-way-valve bivalent operation 1120912-1 1120912-1

19 Terminal blocks 1120922 1120922

20 Domestic water storage tank WKT 300 270500 270500

21 Pillar block pipe group 1120904 1120904

22 Control board Comkit 1120999 1120999

23 Ball valve for filling/drainage 1120905 1120905

24 Bleeder 1/4“ 1120059 1120059

25 Front panel storage tank 1120606 1120606

Spare parts (not illustrated)

Nr. Bezeichnung

Smart BVT

From series:

Smart Serv

From series:

EDV-Nummer EDV-Nummer

Cable loom complete indoor module 1121055 1121055

Liquid sensor, cooling circuit / return / inlet-set 1120306 1120306

Protection anode, chain anode 1120121 1120121

2 x SD card 4.18 (act. softw. witho. Smart Web,Smart Count) 1120985 1120985

Coding resistor 130/110 Ohm 1121052 1121053

Pt1000 1,5m long (S15) 1120930 1120930

Transformer for Comkit board 1120935 1120935

Assembly auxiliary heater 9 kW including flow rate meter 1120942 1120942

User manual 1120984 1120984

WKF-compact

120

1268G

5001...

1268G

8001...

WKF-compact

180

1270G

5001...

1270G

8001...

Parts and fittings, set (not illustrated)

Designation WKF/WKF-compact 120/180

EDV-Nummer

Fittings set, complete 260008

Immersion sensor 1120930

Dirt trap 1120013

Ball valve 1“, red 1120986

Ball valve 1“, blue 1120987

Safety assembly 1120010

External sensor 1120014-1

Corrugated tube 1 WT connection on top (WP-VL) = 540mm 259050-1

Corrugated tube 2 WT connection on bottom (WP-RL) = 1340mm 259050-2

Corrugated tube 3 WW connection on top = 1250mm 259050-3

Corrugated tube 4 circ. connection on middle = 1600mm 259050-4

Corrugated tube 5 KW connection on bottom = 2400mm 259050-5

Flat gasket (outside: 39mm x inside: 27mm x thickness: 2mm) 259050-6

Flat gasket (outside: 30mm x inside: 21mm x thickness: 2mm) 259050-7

When ordering spare parts, please state the computerised part no., device number and device type (see type plate)!

REMKO WKF / WKF-compact

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.

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.

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.

General terms

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.

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).

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.

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).

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.

Heat carrier

Liquid or gas medium (e.g. water, brine or air), in which heat is transported.

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.

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.

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

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.

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.

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.

REMKO WKF / WKF-compact

Adding refrigerant.............................................. 47

Air exchange frequency..................................... 25

Charging pump, motor protection...................... 14

Charging pump, pump-characteristic curves..... 14

Coefficient of performance................................... 9

Condensate draining and ensured discharge.... 37

Contact sensor................................................... 50

Controls, overview............................................. 69

Cooling mode .................................................... 28

Cooling of the Heat Pump.................................. 42

COP..................................................................... 9

Disposal of equipment......................................... 7

Dynamic cooling................................................. 28

Electrical connection

Ensured discharge in the event of leakage........ 38

Environmental protection..................................... 7

External sensor.................................................. 51

Function of the keys........................................... 69

Greenhouse gas according to Kyoto protocol...... 9

Heating capacity diagramm............................... 26

Heat pump

Infiltration heat-loss............................................ 25

Installation

Index

Indoor module............................................... 49

Outdoor module............................................ 49

Characteristics of inverter heat pumps......... 26

Function of the heat pump............................ 24

Layout........................................................... 25

Layout example

Indoor module............................................... 33

Outdoor module............................................ 34

Transversely reinforced strip footing............. 37

............................................. 25

Installation cooling............................................. 42

Intended use........................................................ 6

Leak testing........................................................ 45

Minimum distances for the outdoor modules..... 36

Mounting

Indoor module............................................... 33

Overall sound pressure levels...................... 15, 16

Passive cooling.................................................. 28

Pipe-outlet spacing............................................ 11

Pipe-socket arrangement................................... 11

Pumping down to vacuum.................................. 45

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............................................ 15, 16

Spare parts order....................... 78, 80, 82, 84, 85

Temperature sensors......................................... 50

Thermal transmission coefficient....................... 25

Transmission-heat requirement......................... 25

Warranty.............................................................. 6

REMKO WKF / WKF-compact

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.

SFlbCustomer 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 INTERNATIONAL

… and also right in your neighbourhood! Make use of our experience and advice

We reserve the right to make technical changes, and provide no guarantee as to the accuracy of this data!

REMKO GmbH & Co. KG Air conditioning and heating technology

Im Seelenkamp 12 D-32791 Lage Postfach 1827 D-32777 Lage Telephone +49 5232 606-0 Telefax +49 5232 606-2 60 E-mail info@remko.de Website www.remko.de

REMKO WKF-compact 120 Series, WKF 120 Series, WKF-compact 180 Series, WKF 180 Series Assembly And Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of contents

Safety and user notes

General safety notes

Identification of notes

Personnel qualifications

Safety-conscious working

Safety notes for the operator

Intended use

Warranty

Transport and packaging

Environmental protection and recycling

Technical Data

Units data WKF/WKF-compact 120/180

Unit dimensions outdoor module

Unit dimensions indoor modules

Heat pump service limits in monovalent mode

Pump-characteristic curves, indoor module charging pump

Overall sound pressure levels for outdoor module

Characteristic curves

Structure and function

The heat pump in general

WKF series

WKF-compact series

Installation instructions

System layout

Hydraulic connection

Cooling of the heat pump

Corrosion protection

Connection of refrigerant lines

Connection of refrigerant lines

Elektrical connection

General notes

Electrical configuration - I/0 module

Terminal assignment / legend

Circuit diagrams

Commissioning

Control panel and information on commissioning

Care and maintenance

Temporary shut-down

Troubleshooting and customer service

Troubleshooting and customer service

Emergency-heat operation

Exploded view and spare parts

Exploded view outdoor modules WKF/WKF-compact 120

Exploded view outdoor modules WKF/WKF-compact 180

Exploded view indoor modules WKF 120/180

Exploded view indoor modules WKF-compact 120/180

General terms

Index