REMKO WKF Neo-Compact Series User manual

Electrical wiring
Read the instructions prior to performing any task!
REMKO series WKF NEO-compact
WKF NEO-compact 70, WKF NEO-compact 120, WKF NEO-compact 180
Smart heat pumps
0188-2019-04 Edition 3, en_GB
Instructions for Technicians
Air/water system for heating or cooling

R410A
Refrigerant
Translation of the original
Read these operating instructions carefully before commis-
sioning / 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 mis-
prints!

Table of contents
1 Safety and usage instructions............................................................................................................. 4
1.1 General safety notes....................................................................................................................... 4
1.2 Identification of notes...................................................................................................................... 4
1.3 Personnel qualifications.................................................................................................................. 4
1.4 Dangers of failure to observe the safety notes................................................................................ 4
1.5 Safety-conscious working............................................................................................................... 4
1.6 Safety notes for the operator........................................................................................................... 5
1.7 Safety notes for installation, maintenance and inspection.............................................................. 5
1.8 Unauthorised modification and changes......................................................................................... 5
1.9 Intended use................................................................................................................................... 5
1.10 Warranty........................................................................................................................................ 5
1.11 Transport and packaging............................................................................................................... 6
1.12 Environmental protection and recycling........................................................................................ 6
2 Electrical wiring..................................................................................................................................... 7
2.1 System layout WKF NEO 70........................................................................................................... 7
2.2 System layout WKF NEO 120......................................................................................................... 8
2.3 System layout WKF NEO 180......................................................................................................... 9
2.4 Overview of electrical cables......................................................................................................... 10
2.5 Electrical connection general notes.............................................................................................. 12
2.6 Electrical connection - indoor unit................................................................................................. 13
2.7 Electrical connection - outdoor unit............................................................................................... 13
2.8 Electrical configuration - I/O module - WKF NEO compact 70/120/180........................................ 16
2.9 Terminal assignment / legend - WKF NEO compact 70/120/180.................................................. 17
2.10 Circuit diagrams - WKF NEO compact 70/120/180..................................................................... 19
3 Index..................................................................................................................................................... 25
3

1 Safety and
usage instructions
1.1 General safety notes
Carefully read the operating manual before com-
missioning the units for the first time. It contains
useful tips and notes such as hazard warnings to
prevent personal injury and material damage.
Failure to follow the directions in this manual not
only presents a danger to people, the environment
and the system itself, but will void any claims for
liability.
Keep this operating manual and the refrigerant
data sheet near to the units.
1.2 Identification of notes
This section provides an overview of all important
safety aspects for proper protection of people and
safe and fault-free operation.The instructions and
safety notes contained within this manual must be
observed in order to prevent accidents, personal
injury and material damage.
Notes attached directly to the units must be
observed in their entirety and be kept in a fully
legible condition.
Safety notes in this manual are indicated by sym-
bols. Safety notes are introduced with signal words
which help to highlight the magnitude of the danger
in question.
DANGER!
Contact with live parts poses an immediate
danger of death due to electric shock. Damage
to the insulation or individual components may
pose a danger of death.
DANGER!
This combination of symbol and signal word
warns of a situation in which there is immediate
danger, which if not avoided may be fatal or
cause serious injury.
WARNING!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may be fatal or cause
serious injury.
CAUTION!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may cause injury or mate-
rial 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 recom-
mendations as well as information for efficient
and fault-free operation.
1.3 Personnel qualifications
Personnel responsible for commissioning, opera-
tion, maintenance, inspection and installation must
be able to demonstrate that they hold a qualifica-
tion which proves their ability to undertake the
work.
1.4 Dangers of failure to observe
the safety notes
Failure to observe the safety notes may pose a risk
to people, the environment and the units. Failure to
observe the safety notes may void any claims for
damages.
In particular, failure to observe the safety notes
may pose the following risks:
nThe failure of important unit functions.
nThe failure of prescribed methods of mainte-
nance and repair.
nDanger to people on account of electrical and
mechanical effects.
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 series WKF NEO-compact
4

1.6 Safety notes for the operator
The operational safety of the units and compo-
nents is only assured providing they are used as
intended and in a fully assembled state.
nThe units and components may only be set up,
installed and maintained by qualified per-
sonnel.
nProtective covers (grille) over moving parts
must not be removed from units that are in
operation.
nDo not operate units or components with
obvious defects or signs of damage.
nContact with certain unit parts or components
may lead to burns or injury.
nThe units and components must not be
exposed to any mechanical load, extreme
levels of humidity or extreme temperature.
nSpaces in which refrigerant can leak sufficient
to load and vent. Otherwise there is danger of
suffocation.
nAll housing parts and device openings, e.g. air
inlets and outlets, must be free from foreign
objects, fluids or gases.
nThe units must be inspected by a service tech-
nician at least once annually. Visual inspec-
tions and cleaning may be performed by the
operator when the units are disconnected from
the mains.
1.7 Safety notes for installation,
maintenance and inspection
nAppropriate hazard prevention measures must
be taken to prevent risks to people when per-
forming installation, repair, maintenance or
cleaning work on the units.
nThe 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.
nLocal regulations and laws such as Water
Ecology Act must be observed.
nThe power supply should be adapted to the
requirements of the units.
nUnits 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.
nMobile units must be set up securely on suit-
able surfaces and in an upright position. Sta-
tionary units must be permanently installed for
operation.
nThe units and components should not be oper-
ated in areas where there is a heightened risk
of damage. Observe the minimum clearances.
nThe units and components must be kept at an
adequate distance from flammable, explosive,
combustible, abrasive and dirty areas or
atmospheres.
nSafety devices must not be altered or
bypassed.
1.8 Unauthorised modification
and changes
Modifications or changes to units and components
are not permitted and may cause malfunctions.
Safety devices may not be modified or bypassed.
Original replacement parts and accessories
authorised by the manufactured ensure safety. The
use of other parts may invalidate liability for
resulting consequences.
1.9 Intended use
Depending on the model, the equipment and the
additional fittings with which it is equipped is only
intended to be used as an air-conditioner for the
purpose of cooling or heating the air in an
enclosed room.
Any different or additional use shall be classed as
non-intended use. The manufacturer/supplier
assumes no liability for damages arising from such
use. The user bears the sole risk in such cases.
Intended use also includes working in accordance
with the operating and installation instructions and
complying with the maintenance requirements.
Under no circumstances should the threshold
values specified in the technical data be exceeded.
1.10 Warranty
For warranty claims to be considered, it is essential
that the ordering party or its representative com-
plete 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 "Gen-
eral business and delivery conditions". Further-
more, only the parties to a contract can conclude
special agreements beyond these conditions. In
this case, contact your contractual partner in the
first instance.
5

1.11 Transport and packaging
The devices are supplied in a sturdy shipping con-
tainer. Please check the equipment immediately
upon delivery and note any damage or missing
parts on the delivery and inform the shipper and
your contractual partner. For later complaints can
not be guaranteed.
WARNING!
Plastic films and bags etc. are dangerous
toys for children!
Why:
- Leave packaging material are not around.
- Packaging material may not be accessible to
children!
1.12 Environmental protection
and recycling
Disposal of packaging
All products are packed for transport in environ-
mentally friendly materials. Make a valuable contri-
bution to reducing waste and sustaining raw mate-
rials. Only dispose of packaging at approved
collection points.
Disposal of equipment and components
Only recyclable materials are used in the manufac-
ture of the devices and components. Help protect
the environment by ensuring that the devices or
components (for example batteries) are not dis-
posed in household waste, but only in accordance
with local regulations and in an environmentally
safe manner, e.g. using certified firms and recy-
cling specialists or at collection points.
REMKO series WKF NEO-compact
6

2 Electrical wiring
2.1 System layout WKF NEO 70
B
A
4
3
2a
2b
2c
1c
1d
1b
1a
1
2
Fig. 1: System layout WKF NEO 70
A: Outdoor area
B: Indoor area
1: Indoor unit
1a: Heating inlet flow (11/4" AG)
1b: Heating return flow (11/4" AG)
1c: Power supply, indoor unit
= 230V/1~/50Hz, 10A (e.g. 3 x 1.5 mm2)
1d: Mains supply line, electrical auxiliary heater
(e.g. 5 x 1.5 mm2)
2: Outdoor unit
2a: Fan
2b: Power supply, outdoor unit
= 230V/1~/50Hz, 16A (e.g. 3 x 2.5 mm2)
2c: Condensate tray, outdoor unit
(drain must be designed to be frost proof!)
3: Control line, sheathed (e.g. 2 x 1 mm2)
4: Refrigerant lines 3/8" and 5/8“
7

2.2 System layout WKF NEO 120
B
4
3
1c
1d
1
2
2a
2b
2c
A
1b
1a
Fig. 2: System layout WKF NEO 120
A: Outdoor area
B: Indoor area
1: Indoor unit
1a: Heating inlet flow (11/4" AG)
1b: Heating return flow (11/4" AG)
1c: Power supply, indoor unit
= 230V/1~/50Hz, 10A (e.g. 3 x 1.5 mm2)
1d: Mains supply line, electrical auxiliary heater
(e.g. 5 x 1.5 mm2)
2: Outdoor unit
2a: Fan
2b: Power supply, outdoor unit
= 230V/1~/50Hz, 20A (e.g. 3 x 2.5 mm2)
2c: Condensate tray, outdoor unit
(drain must be designed to be frost proof!)
3: Control line, sheathed (e.g. 2 x 1 mm2)
4: Refrigerant lines 3/8" and 5/8“
REMKO series WKF NEO-compact
8

2.3 System layout WKF NEO 180
B
5
4
1c
1d
1
2
A
2a
2b
2c
2a
1b
1a
Fig. 3: System layout WKF NEO 180
A: Outdoor area
B: Indoor area
1: Indoor unit
1a: Heating inlet flow (11/4" AG)
1b: Heating return flow (11/4" AG)
1c: Power supply, indoor unit
= 230V/1~/50Hz, 10A (e.g. 3 x 1.5 mm2)
1d: Mains supply line, electrical auxiliary heater
(e.g. 5 x 1.5 mm2)
2: Outdoor unit
2a: Fan
2b: Power supply, outdoor unit
= 400V/3~/50Hz, 3 x 16A (e.g. 5 x 1.5 mm2)
2c: Condensate tray, outdoor unit
(drain must be designed to be frost proof!)
3: Control line, sheathed (e.g. 2 x 1 mm2)
4: Refrigerant lines 3/8" and 5/8“
9

The indoor and outdoor units have to be connected
with refrigerant lines of dimensions (outer diam-
eter) 3/8"(=9.52 mm) and 5/8"(=15.88 mm). At least
a two-wire control line has to be laid between the
two modules. Both the indoor and outdoor units
require a separate power supply.
WARNING!
All electric lines are in accordance VDE regula-
tions to dimension and to lay.
2.4 Overview of electrical cables
WKF NEO 70 and WKF NEO 120
1
A B C D
230V~/N/Pe
230V~/N/Pe
L1 NPe L1 NPe
400V/3~/N/Pe
L1 L2 L3 NPe
E
Fig. 4: Overview of electrical cables
1: Main distribution
A: Power supply outdoor unit
B: Power supply indoor unit
C: Power utility disable signal, potential-free /
open = locked
D: Power supply heating coil, 6 kW indoor unit
E: Communication F1/F2 outdoor unit / indoor unit
2 x 1 mm2 sheathed
REMKO series WKF NEO-compact
10

WKF NEO 180
1
A B C D
230V~/N/Pe
L1 NPe
400V/3~/N/Pe
L1 L2 L3 NPe
E
L1 L2 L3 NPe
400V/3~/N/Pe
Fig. 5: Overview of electrical cables
1: Main distribution
A: Power supply outdoor unit
B: Power supply indoor unit
C: Power utility disable signal, potential-free /
open = AM locked
D: Power supply heating coil, 6 kW indoor unit
E: Communication F1/F2 outdoor unit / indoor unit
2 x 1 mm2 sheathed
11

2.5 Electrical connection
general notes
nIt is necessary to lay a mains cable both to the
outdoor unit and, separately, to the indoor unit.
nPower to the indoor units may not be discon-
nected by the power company when fitted with
an off-period circuit (anti-freeze protection).
nThe indoor unit requires a single-phase 230V /
50Hz power supply.
The outdoor units of the WKF NEO 70
and WKF NEO 120 require a 230V / 50Hz
power supply.
The outdoor unit of the WKF NEO 180 requires
a three-phase 400V / 50Hz power supply.
nThe electrical connection between outdoor and
indoor units is made using a sheathed three-
wire control line.
nWhere applicable, a separate power supply
shall be provided to the indoor unit for the aux-
iliary heater.
nThe heat-pump manager needs to know
whether a power-company enable or off-period
is in effect. A potential-free switch must be pro-
vided by the customer for this purpose. (Con-
tact closed signifies enabled, while contact
open signifies a blocking period).
nA connection schematic along with corre-
sponding circuit diagrams can be found in the
“Electrical layout” and “Circuit plans” chapters
of this manual.
nSpecial rates for the operation of heat pumps
may be offered by the power-company (utility).
nAsk your local power utility about the details of
any rates that might be available.
DANGER!
All electrical installation work must be done by
an electrician.
WARNING!
Always note the currently applicable VDE
guidelines and the notes in TAB 2007. The size
and type of the fuse are to be taken from the
technical data.
WARNING!
All cable sizes are to be selected according to
VDE 0100. Special attention should be given to
cable lengths, cable type and the kind of instal-
lation. The information in the connection dia-
gram 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 regula-
tions 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.
REMKO series WKF NEO-compact
12

2.6 Electrical connection -
indoor unit
The following instructions describe the electrical
connection of the indoor units.
1. Remove the housing from the upper section
by pressing it upwards and pulling it forwards
out of the rear groove.
2. Guide the supply cable to the indoor units
through the cable openings, and also route
the control line between indoor and outdoor
units and the cables for external devices and
probes into the indoor unit. Note that the
cable openings in the WKF NEO 120 series
are located above rather than below.
3. Connect the mains cable line of the indoor
units to the terminals.
4. Connect all secondary consumers
(HGM,HGU, changeover valves etc.) to the
I/O module.
NOTICE!
Attach cables in accordance with the connec-
tion 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.
Make sure to use enough cable when installing
the indoor unit so that the control box can be
fully lowered for future maintenance.
At the site, avoid adding cable inlets.
2.7 Electrical connection -
outdoor unit
nTo connect up the electrics, remove the right
cladding panel after unfastening the screws.
1
Fig. 6: Series WKF NEO 70 and WKF NEO 120 -
remove the cover by unfastening the screw
1: Screw
1
Fig. 7: Series WKF NEO 180 - remove the trim
panel by unfastening the screws
1: Screw
nElectrical protection for the system is imple-
mented in accordance with the information in
the Technical Data. Observe the required con-
ductor cross-sections!
nAll cables must be connected with the correct
polarity and strain relief.
nFollow the connection schematic and the circuit
diagrams.
nThe two-wire control line is to be connected to
terminals F1, F2 and the earth terminal.
13

nWhen connecting the control line, make sure
that polarity is correct.
nIf the outdoor unit is installed on a roof, it and
the supporting structure must be earthed sepa-
rately (connection to lightning conductors or
foundation earth/ground feature).
nWith the series WKF NEO 180, make sure that
only terminals L1(R), L2(S), L3(T) and N are
connected (see Fig. 10).
1
32
Fig. 8: Connection terminals outdoor unit
WKF NEO 70
1: Display
2: Mains connection 230V/1~ /50Hz
3: Control line F1/F2
1
Fig. 9: Connection terminals outdoor unit
WKF NEO 120
1: Mains connection 230V/1~ /50Hz
Fig. 10: Connection terminal outdoor unit
WKF NEO 180
NOTICE!
Make sure to connect the outdoor unit neutral
connector properly, otherwise the varistors on
the line-filter circuit board will be destroyed.
Temperature probes
nThe number of probes required can vary with
the type of system.
nObserve the relevant notes for the probe posi-
tion found in the hydraulic circuit diagram.
nThe standard scope of delivery includes the
outdoor probes (S10), an immersion probe
(provided for use as a domestic hot water
probe - (S08) as well as a probe for the com-
plete inlet in the indoor unit.
nWhen connecting up a solar plant, use a
PT-1000 probe (S01) as a collector probe and
a PT-1000 probe (S02) as the lower storage
tank probe.
nAll probes are to be connected to the indoor
units switch cabinet in accordance with the ter-
minal assignment diagram.
REMKO series WKF NEO-compact
14

Contact probe
Contact probes can be mounted on the pipes, to
measure the heating-circuit temperatures, for
example.
nThe contact probes are fastened to a pipe with
the trapezoidal brackets and retaining strap
provided.
nClean the appropriate point. Subsequently a
thermal compound [A] is applied and the probe
is fixed in position.
A
Fig. 11: Securing the inductive 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 probe
The connection of an outdoor sensor is always
required for Smart Control Touch.
nMount the external probe 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.
nIn order to carry out the installation, remove the
cover and secure the probe with the screw pro-
vided.
nA cable with a wire cross-section of min. 0.5
mm2 provided by the customer is recom-
mended for connecting the probe.
Fig. 12: External probe
15

2.8 Electrical configuration - I/O module - WKF NEO compact 70/120/180
Use wire gauge corresponding with the connection cable supplied!
Lay load lines separately to measuring lines!
2nd mixed cycle
Mixing valve 230 V
Closed Open Closed Open Closed Open
Bypass valve
Indoor unit 230 V
1st mixed cycle
Mixing valve 230 V
Circulation pump
Hot water 230 V
Unmixed cycle
Pump 230 V (optional)
1st mixed cycle
Pump 230 V
Pump solar 230 V
unregulated
Changeover valve
Pump, cooling
Pump 230 V
2nd mixed cycle
Not assigned
Changeover valve
2. Heat generator (BVT)
Changeover valve
Hot water preparation
Power supply
230V
Power supply
Internal pump - indoor unit
Power supply I/0 module
Mains voltage connection provided by
the customer from sub-distribution!
Outdoor unit
WKF NEO 70 / 120
230V/1~/N/Pe
E.g. 3 x 2.5 mm2
Outdoor unit
WKF NEO 180
400V/3~/N/Pe
E.g. 5 x 1.5 mm2
Potential-free
A34 General
alarm signal
A33 no
function
A32 enable
2. WE Smart BVT/Serv
A31 no
function
A30 no
function
Refrigerant
A24/25
S07
Solar
return flow
S04
Solar storage tank, bottom
S02
Solar collector
S01
Medium flow rate HP
S24
Medium flow rate solar
S23
Not connected
A22/23
A20/21
A04
A03
A02
A01
A14
A13
A12
A11
A10
NOTE: without blocking contactor,
jumper must be inserted
Closed = enable
Energy supply provider contact
S16
Heat pump RF S15
2nd mixed cycle RF
S14
Coding resistor RC
Heat pump inlet S13
Communication Com-Kit 1 B2/A2
1st mixed cycle RF
S11
1st mixed cycle inlet S12
Operating module SMT 1 B1/A1
Outside temperature S10
Storage tank, centre S09
Hot water probe S08
2nd mixed cycle inlet S06
Pump 0-10V A46
2nd mixed cycle
Circulation S05
Temperature or impulse
Solar probe inlet S03
Pump PWM (indoor unit) A43
Pump 0-10V (HGU) A42
Unmixed cycle
Pump 0-10V (HGM) A41
1st mixed cycle
Speed setting PWM A40
Solar pump
S29/GND
S28/GND
S27/GND
S26/GND
S25/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)
Sensor flow rate
SMT I/O
Power supply
Indoor module
3 x 1,5 mm²
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
Assigned
EP
N
N
N
L
L
L
F1
F2
EP
N
N
N
1A 2A
ON
L3
L2
L1
T3
T2
T1
0
1
Assigned
Assigned
Assigned
Assigned
Assigned
Power supply
Electric heating coil
5 x 1,5 mm²
Communication
Outdoor module
2 x 1,5 mm²
1A 2A
ON
L3
L2
L1
T3
T2
T1
0
1
REMKO series WKF NEO-compact
16

2.9 Terminal assignment / legend - WKF NEO compact 70/120/180
Designation Input Output Signal Description
PW X Power supply I/O module 230V
PP X Power supply primary pump, indoor unit
S01 X Solar probe collector
S02 X Solar probe storage tank, bottom
S03 X Solar probe inlet HM solar
S04 X Solar probe RF HM solar
S05 X Circulation RF temp./impulse
S06 X 2nd mixed cycle inlet probe
S07 X Probe refrigerant piping
S08 X Domestic hot-water tank
S09 X Probe storage tank centre
(storage energy acquisition)
S10 X External probe
S11 X 1st mixed cycle return flow probe
S12 X 1st mixed cycle inlet probe
S13 X Heat pump inlet
S14 X 2nd mixed cycle return flow probe
S15 X Heat pump RF
S16 X Energy supplier contact (NC) / dew point monitoring
(external)
S20 X Not connected
S21 X Not connected
S22 X Not connected
S23 X Ultrasonic flow rate meter Solar, pulse rate
S24 X Ultrasonic flow rate meter HP, impulse rate
S25 X HP electricity meter S0
S26 X Household electricity S0
S27 X Flow probe
S28 X PV yield electricity meter S0
S29 X PV in-feed electricity meter S0
A01 X Solar pump unregulated (230 V)
A02 X 1st mixed cycle, pump (230 V) switched
A03 X Unmixed cycle, pump (230 V) switched
A04 X Circulation pump
A10 X Changeover valve, drinking water
17

Designation Input Output Signal Description
A11 X Changeover valve 2nd WE
A12 X Changeover valve solar / 2 storage tank pool
A13 X 2nd mixed cycle, pump (230 V) switched
A14 X Changeover valve / pump cooling
A20 X 1st mixed cycle, mixing valve open (230 V)
A21 X 1st mixed cycle, mixing valve switched to closed
(230 V)
A22 X Bypass mixer open
A23 X Bypass mixer closed
A24 X 2nd mixed cycle, mixing valve open (230 V)
A25 X 2nd mixed cycle, mixing valve switched to closed
(230 V)
A30 X Not connected
A31 X Not connected
A32 X Enable 2 WE booster heating or boiler
A33 X Not connected
A34 X Alarm codes
A40 X Speed setting solar pump PWM
A41 X Speed specification, 1st mixed circuit (0-10V)
A42 X Speed specification, unmixed circuit (0-10V)
A43 X Speed setting primary pump indoor unit (PWM)
A44 X Not connected
A45 X Non functional
A46 X Speed specification, 2nd mixed circuit (0-10V)
MI
Non functional
MO
CLK
nSS
GND
OT 1 (2x) Not connected
OT 2 (2x) Non functional
B1, A1
+12 Volt,
GND
Operating module
B2 / A2 Communication Com-Kit
B3 / A2 RS 485_3
R RC coding resistance WKF NEO compact
70/120/180
REMKO series WKF NEO-compact
18

2.10 Circuit diagrams - WKF NEO compact 70/120/180
PE
-X1/X2
Spannungsversorgung 230V
-> SMT I/O - Pin
PE
-X1/X2
Spannungsv. 230V
Bauseits
N N
L L
3
-X1/X2
Spannungsversorgung 230V
-> ComKit - CN71
1 1
-X3
Kommunikation
-> ComKit - CN31
2
Klemmblock
K1
X1.1
X1.2
X1.3
X1.4
X2.1
X2.2
X2.3
X3.1
X3.2
X4.1
X4.2
X4.3
X4.4
PE
N
N
N
L
L
L
F1
F2
PE
N
N
N
A2
14
6/T3
4/T2
2/T1
PE
N
N
N
L
L
L
F1
F2
PE
N
N
N
A1
13
5/L3
3/L2
1/L1
-X Klemmblock
PE
-X4
PE - Elektro Heizstab
Bauseits
In
-K1
Freigabe E-Heizer
-> SMT I/O - A32 A32
L3
-K1
Spannungsv. 400V
Bauseits
L2 L1
STB 98°C

Elektro Heizstab
-EHZ
Elektro Heizstab
WICHTIG!
Bei einphasigem Anschluss des Elektro Heizstabs (3 x 230V)
muss die Brücke zwischen X4.2, X4.3 und X4.4 entfernt und
jeweils ein Neutralleiter angeschlossen werden. Bei einphasigem Anschluss des Elektro Heizstabs (3 x 230V)
muss die Brücke zwischen X4.2, X4.3 und X4.4 entfernt und
jeweils ein Neutralleiter angeschlossen werden.
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1/5
WKF NEO
01 2 3 4 5 6 7 8 9 10 11
7/4/2018
Projekt Titel:
Terminal block
Electric heating element
Power supply 230V
Power supply 400V
Enable E-heater
PE - electric heating element
Terminal block
STB 98°C
Electric heating element -EHZ
Project title: WKF NEO
IMPORTANT!
With a single-phase connection of the electric heating element (3 x 230V), the jumper between X4.2, X4.3 and X4.4 must be removed and a neutral conductor must be connected respectively.
Communication
Power supply 230V
Power supply 230V
Provided by the
customer
Provided by the customer
-> SMT I/O -A32
Provided by the customer
-> ComKit - CN31
-> ComKit - CN71
-> SMT I/O - Pin
19

PE
-Pin
Spannungsv. 230V
-> Klemmblock - X1/X2
N L
S0
Imp/kWh
+
-
-S25
Stromzähler S0
Wärmepumpe
1
M
PE
N
L
-Pout1
Versorgung 230V
Interne Pumpe A43
S0
Imp/kWh
+
-
-S26
Stromzähler S0
Haushalt
13 1
4
-S27
Volumenstrom, Imp.
Warmwasser
M
N
SP
DP
-A10
Umschaltventil 230V
Warmwasserbereitung
S0
Imp/kWh
+
-
-S28
Stromzähler S0
PV Ertrag
S0
Imp/kWh
+
-
-S29
Stromzähler S0
PV Einspeisung
M
N
SP
DP
-A11
Umschaltventil 230V
2. Wärmeerzeuger
U
t
-
+
-A40
Signal PWM
Solarkreis
U
t
-
+
-A41
Signal 0-10V / PWM
1. gem. Kreis
U
t
-
+
-A42
Signal 0-10V / PWM
ungem. Kreis
1M
PE
N
L
-A13
Pumpe 230V
2. gem. Kreis
U
t
-
+
-A43
Signal PWM
Interne Pumpe
Power Actuator Output Actuator Output Actuator OutputActuator Supply
Sensor Inputs Actuator Signal Actuator Signal SPI OT Interfaces Bus Interfaces Rc
Systemregler SMT I/O
PE
N
L
PE
N
L
PE
N
L
PE
N
A10
L
PE
N
A11
L
PE
N
A12
L
PE
N
A13
L
PE
N
A14
L
PE
N
A01
PE
N
A02
PE
N
A03
PE
N
A04
PE
N
A20
A21
PE
N
A22
A23
PE
N
A24
A25
S25
+5V
GND
S26
+5V
GND
S27
+5V
GND
S28
+5V
GND
S29
+5V
GND
GND
A40
GND
A41
GND
A42
GND
A43
GND
A44
GND
A45
GND
A46
MI
MO
CLK
nSS
GND
OT1
OT1
OT2
OT2
+12V
B1
A1
GND
B2
A2
B3
A3
R
GND
-SMT_I/O_UNTEN
Systemregler
M N
SP
DP
-A14
Umschaltventil 230V
Separater Kühlkreis
1
M
PE
N
L
-A01
Pumpe 230V
Solarkreis
U
t
-
+
-A46
Signal 0-10V / PWM
2. gem. Kreis
1M
PE
N
L
-A02
Pumpe 230V
1. gem. Kreis
1
M
PE
N
L
-A03
Pumpe 230V
ungem. Kreis
1M
PE
N
L
-A04
Pumpe 230V
Trinkwasser Zirkulation
+12V
-12V
Spannungsvers.
-> SMT Touch - 12V GND
M N
Auf
Zu
-A20/A21
Mischventil 230V
1. gem. Kreis
2
-B2/A2
Kommunikation
-> ComKit - CN33
1
M
N
Auf
Zu
-A22/A23
Ventil 230V
Bypass
B
-B3/A3
Kommunikation
-> Raumsensor - B/A
A
1 2
-RC
Kodierwiderstand
Geräteabhängig
M N
Auf
Zu
-A24/A25
Mischventil 230V
2. gem. Kreis
Kodierwiderstände
WKF 70 -> 51 Ohm
WKF 120 -> 130 Ohm
WKF 180 -> 110 Ohm
WKF 70 -> 51 Ohm
WKF 120 -> 130 Ohm
WKF 180 -> 110 Ohm
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2/5
WKF NEO
01 2 3 4 5 6 7 8 9 10 11
7/4/2018
Projekt Titel:
Project title: WKF NEO
7/4/2018
System controller SMT I/O
Electricity meter S0
Power supply 230V
Power supply 230V
Changeover valve 230V
Changeover valve 230V
Pump 230V
Pump 230V
Pump 230V
Pump 230V
Pump 230V
Mixed valve 230V
Mixed valve 230V
Valve 230V
Changeover valve 230V
-Pin
-Pout1
Probe Inputs
Power Actuator Supply Actuator Output Actuator Output Actuator Output
Actuator Signal Actuator Signal SPI OT Interfaces Bus Interfaces Rc
Electricity meter S0
Electricity meter S0
Electricity meter S0
Signal PWM
Signal 0-10V / PWM
Signal 0-10V / PWM
Communication
Communication
Coding resistor
Coding resistors
WKF 70 -> 51 Ohm
WKF 120 -> 130 Ohm
WKF 180 -> 110 Ohm
Power supply
Signal 0-10V / PWM
Signal PWM
Medium ow rate, Imp.
Heat pump
-> Terminal block - X1/X2
Internal pump A43
Hot water preparation
2. Heat generator
2nd mixed circuit
Solar circuit
1st mixed circuit
Unmixed circuit
Drinking water circulation
1st mixed circuit
2nd mixed circuit
Bypass
Separate cooling circuit
Household
PV yield
PV feed-in
Solar circuit
1st mixed circuit
2nd mixed circuit
-> ComKit - CN33
-> Room sensor - B/A
Device-dependent
-> SMT Touch - 12V
Unmixed circuit
Internal pump
Hot water
System controller -SMT_I/O_BOTTOM
GND
SP
Open
Open
Open
Closed
Closed
Closed
DP
N
MI
MO
CLK
nSS
GND
OT1
REMKO series WKF NEO-compact
20