Installation and Operating Manual
General Information
Installation and Operating Manual
KaMo - System
WK
Combined Apartment Unit
General Information
Dear Costumer,
With this item, you have purchased a product of high technological quality. Please read and adhere to the following installation and operating conditions.
1.) The installation of the unit as well as of its accessories may only be carried out by qualified specialists.
2.) The plan and design of the heating system shall be executed in accordance with the recognised rules of technology as well as
with the DIN Standards and VDI Guidelines specified below. Where applicable, please comply with the respectively applicable and
comparable country-specific regulations and/or standards. (This list makes no claim to be complete.)
DIN EN 6946 U value calculation
DIN EN 12831 Heat load calculation
DIN EN 128282 Heating systems in buildings, planning domestic hot water heating systems
DIN 18380
VOB / C
DIN 4109
Sound insulation in buildings
TRGI
Technical regulations gas installation
VDI 2035
Heating water treatment
EnEV
Energy Saving Ordinance
Please not that, in accordance with EnEV, the heat load of the building must be re-calculated following a major modification on the heating
system (boiler replacement). The system shall be provided with fittings that enable an automatic (self-actuating) control according to time and
temperature.
A water analysis is recommended for each installation. A water analysis is always required if warranty claims are made.
3.) Necessary electrical connections, installation work, commissioning and maintenance may only be carried out by qualified
specialist personnel. EC 364, CENELEC HD 384 or DIN VDE 0100 and IEC-Report 446 or DIN VDE 0110 and EN 50178, EN 60204,
EN 60335/Part 1 and Part 51 and/or local or country-specific regulations must be complied with
Attention: The control unit must be de-energised according to regulations before work is carried out on the control unit or connected
components. The outputs are energised even when they are not activated.
Furthermore, we also ask that the systems supplied by us are mounted in accordance with the installation instructions. Damage to the heating
system or the building resulting from failure to comply with these instructions shall make our warranty null and void. Modifications or changes
shall only be permitted with approval from KaMo Frischwarmwassersysteme GmbH. The manufacturer shall accept no liability for damage
caused by incorrect usage of the KaMo FWS stations.
4.) This product comes into contact with our most important life source - "potable water" We would therefore like to point out
some important installation and operating conditions.
The plan and design of the drinking water system must be carried out in accordance with the infection protection directive, in particular Section
38 of the German Drinking Water Ordinance, DIN 1988, DIN 50930 Part 6, DIN 2000, DIN 2001 and DIN 18381, VDI 6003 and VDI 6023 and
the DVGW (German technical and scientific association for gas and water) directives quoted below, as well as the recognised rules of
technology. (This list makes no claim to be complete.)
These are: W 551 Drinking water heating systems and conduits. Technical measures to decrease legionella growth. W 553 Dimensioning of
circulation systems in central domestic water heating systems. W 291 Cleaning and disinfection of water distribution systems. The
regulations of the local water companies. The respectively applicable and comparable country-specific regulations and/or
standards.
There are some points in relation to this, which we would like to specifically highlight here. This list makes no claim to be complete.
- The installation of the system may only be carried out by qualified specialists.
- During installation, it is important to ensure that the open ends of the pipework are protected from soiling during work breaks.
- The safety equipment of the cold water and domestic hot water system must comply with DIN 1988 or the comparable country-specific
regulations or standards.
- The system must be rinsed and disinfected prior to commissioning and handing over to the user.
- Domestic hot water pipes must be fitted with the thermal insulation thickness specified in accordance with EnEV.
- Drinking water pipes must be insulated such that no heating beyond the specifications of the German
Drinking Water Ordinance or comparable country-specific regulations or standards take place.
- Cold drinking water pipes must not be insulated together with the domestic hot water pipes.
Page 2
The maintenance of the system must be carried out in accordance with DIN 1988 Part 7 and VDI 6023, or in accordance with the
country-specific regulations or standards if outside Germany.
Use-related wear on wear parts, e.g. pumps, installed valves (movable parts, proportional flow controller or other) shall generally not constitute
a fault.
We recommend a maintenance cycle in accordance with VDI 6023, in particular for the installed heat exchanger, for example (check for soiling,
slurry, lime), proportional flow controller (function test), dirt filter, shut-off fittings (function test), valves such as thermostat lead module,
thermostatic hot water controller, zone valves, injector valve, differential pressure regulating valve, pump, volume measuring unity, thermal
premixing or other component parts.
5.) The user of the system must receive adequate instruction and hand over this installation and operating manual to him together
with the inventory documents!
Please check that the stations are complete. Tighten any screw connections, which may have come loose or undone during
transport.
If leaks are identified during the pressure test, always de-pressurise the unit before replacing any affected components.
Never remove individual parts of the KaMo FWS unit (or any other installed components) while the system is still pressurised
(risk of injury).
Should you have any queries regarding the correct use or functioning, please contact your
supplier. Alternatively, you can also contact us directly at any time.
Applicability of the manual
This installation and operation manual shall only apply for the Apartment Unit (WK) of KaMo Frischwarmwassersysteme GmbH. The
model can be found on the type plate. The type plate is located on the base plate of the Apartment Unit.
The following information can be found on the type plate:
• Distribution
• Manufacturer
• Model
• Technical specifications
• Year of manufacture
• Serial number
• Order number
• Place of production
Distribution:
Manufacturer:
Model:
Heating flow temperature:
Heating capacity:
Heating flow temperature
for hot water
Domestic
Hotgeneration:
Water
(DHW) outlet
volume:
Pressure
rating
Hz/DHW:
Year of manufacture
KaMo Frischwarmwassersysteme GmbH
KaMo Frischwarmwassersysteme GmbH
WK
max. 90 °C
10 kW / 20 K
65 °C
exchanger model 1; 12 l/min; 50 °C
PN 10
2011
Type plate (example)
Further applicable documents and regulations
- Further documents apply in connection with this installation and operating manual.
- Observe the information and details of the product configuration.
- During service work on the unit, it is imperative that all instructions of supplementary component parts and components of the heating system
are observed.
- In addition, the following should also be taken into consideration for all service work:
• the recognised technical rules governing safe and professional work,
• the statutory provisions for accident prevention,
• the statutory provisions for environmental protection,
• the regulations of the Employer's Liability Insurance Association,
• the relevant safety regulations specified in DIN, EN, DVGW, DWGW, VDE and AGFW,
• the national and EU provisions according to other countries
• and the specifications relevant for the state of the technology.
Keeping the documents
- Please keep this manual as well as all applicable documents in a safe place and ensure that they are available at all times.
- Please hand over all documents to the operator.
Page 3
Intended Use
The Apartment Unit is solely intended to heat drinking water, regulate the connected Apartment Unit heating and to measure consumption of
heating and cold water of an Apartment Unit or a similar unit.
Any other use beyond this shall not be considered intended. The manufacturer/supplier shall not be liable for any damages resulting from
unintended use. The user shall solely bear the risk. Observing all further applicable documents as well as complying with the inspection and
maintenance conditions shall also be considered part of the intended use. The values specified in the technical specifications must not be
exceeded, or respectively, fallen below.
Personnel and Qualification
The Apartment Unit may be used by the operator or by personnel authorised by him. Service work (installation, commissioning and
maintenance) to the Apartment Unit requires specialist knowledge. In general, only approved specialist trade companies may carry out servicerelated work to the Apartment Unit.
Operator
The operator is responsible for the correct operation of the heating system. The operator
must:
• have read and understood the operating manual,
• be of the legal minimum age,
• ensure that the heating system is serviced regularly by a specialised tradesperson.
Specialised Tradespersons
The specialised tradesperson is authorised to carry out the installation, commissioning and maintenance work (service and maintenance).
Authorised specialist tradespersons must have recognised proof of training or have according skills and knowledge of the respective specialist
area that is responsible for compliance with the existing provisions, regulations and guidelines.
Work on electrical equipment of the system may only be carried out by an electrically qualified person according to the electrotechnical
regulations. Only personnel with specialised knowledge and experience with hydraulics may work on hydraulic systems.
Specialised tradespersons must have read and understood the service manual.
Installation, Commissioning and Maintenance
For your own safety please ensure that the installation, commissioning and maintenance of the Apartment Unit is carried out by sufficiently
qualified personnel.
Basic Safety Information
For your protection and to protect your surroundings, please adhere to the subsequent information.
Danger of Electric Shock
Controllers and pumps are under live current. Touching live parts may be fatal or result in severe injuries.
- When working on electrical components immediately switch off the voltage supply.
- Only electrically qualified persons may carry out work on the electrical systems.
- Never touch electric components with wet our damp body parts.
- Never pull on electric lines.
Avoid Danger of Burning and Scalding
The surfaces of individual component parts as well as the water coming out the taps may be very hot.
- Do not touch any hot surface.
- Carefully check the temperature of the water with a measuring device before touching it.
Leakage
The following instructions should be complied with if leakage occurs.
- Immediately close all shut-off valves.
- Professionally repair the leakages.
Avoid Frost Damage
Without heating water and power supply the Apartment Unit is not protected against frost.
- Please ensure this and point out to the operator that the Apartment Unit must be in operation during periods of frost (even when the
operator is absent).
- Please ensure this and point out to the operator that the place of installation of the Apartment Unit and the rooms should be sufficiently heated.
Avoid property damage caused through improper maintenance.
- Carry out maintenance on the unit annually.
Information on the Device
- Comply with any information and instructions specified directly on the device.
- Ensure that this information is maintained in a fully legible condition.
Avoid property damage caused through incorrect additional components, replacement and wear parts.
Components, replacement and wear parts that are not permitted, and have not been tested with the system, may damage the Apartment Unit.
The installations of prohibited components, replacement and wear parts as well as unauthorised modification and alterations are considered
unintended use and may limit the functioning, safety and warranty. We shall not assume liability for this.
- When exchanging parts, only use original parts made by KaMo Frischwarmwassersysteme GmbH or replacement parts approved by KaMo
Frischwarmwassersysteme GmbH.
Page 4
Table of Contents
Technical Manual and Functional Description
Functional description
Subject to technical modifications / Version of 01/14
6
Components and connections
Wall-mounting / surface installation
6
7
Installation flush-mounted box
Hydraulic connection
8-9
10
Commissioning
Rinsing and venting the system
11
Hydraulics and Dimensioning
Diagram WK-S slim design
Diagram WK-B broad design
12
13
Dimensioning
Diagram WK-B (height 850/1200 mm)
14-15
Installation Parts
Overview base unit
16
Overview accessories
17
Cold water domestic outlet
18
Differential pressure regulating valve / lead module
Hot water controller / strainer
Return temperature limiter
18
19
19
Drinking water circulation / injection circuit
Zone valve / actuator
20
21
System Separation Module
22
Apartment Unit Heating-Cooling-Module
23
Connection diagrams
Electric Wiring
24-25
26-27
HCC Controller (DHR)
Settings
Cascade connection
28
29
Troubleshooting
30
Plate Heat Exchanger Specifications
31
Characteristic Curve Diagrams
32-35
Settings Protocol
36
Page 5
Technical Manual and Functional Description
Functional description
The WK unit supplies an apartment with domestic hot water and
heating.
The heating of the domestic water only takes place if required using
the continuous flow principle via a stainless steel plate heat
exchanger (1) The large thermal length of the heat exchanger (1)
ensures low return temperatures as well as that the heating water is
cooled properly.
The energy is supplied through heating water with a flow
temperature of at least 55 °C via the heating water inlet.
The temperature of the domestic hot water is regulated by means of
a pressure controlled proportional controller (proportional flow
controller 2).
The proportional flow controller only opens if hot water tapping takes
place. After tapping, the valve closes the heating of the exchanger.
Provided there are constant flow temperatures, the same tapping
temperature is always achieved through proportional flow control,
both for small or large tapping volumes.
Even with fluctuating flow temperatures, a stable tap temperature
can be achieved by means of the thermostatic hot water controller
(11) (optional).
A thermostatic lead module (10) TTV (optional) is inserted on the last
unit of a line or further away from the main line, and prevents the
riser from cooling when not being tapped.
The hydraulic balancing of the WK unit can be carried out with the
regulating valve for the heating side (6). A 2-point actuator can be
installed on the valve which is controlled via a room thermostat
(optional).
The differential pressure regulating valve (9 optional) in the WK unit
ensures correct hydraulic balancing. If this is not in the unit, it must
be inserted in the line.
Components and Device Connections
WK basic equipment for slim and broad designs
1 Stainless steel plate heat exchanger
2 Proportional flow controller with priority circuit
3 Cold water throttle plate
4 Heat meter fitting piece (3/4" x 110 mm, Qn 1.5)
5 Vent (only for the unit, not the system)
6
7
1
4
Zone valve to limit the heating flow rate
Multi-block to incorporate additional accessories
Brass piece to incorporate the thermowell M10 x 1
direct immersing incl. bleed and drain valve
1 Base plate
6
2 Primary inlet - strainer (in the multi-block)
6 Cold water - strainer
2
7
A Domestic hot water for the
D Heating water - return line (primary)
apartment
B Cold
E Heating - inlet flow (secondary)
water from the line
C Heating water - inlet flow (primary) F Heating - return line (secondary)
Additional components for extended equipment
8
Cold water domestic outlet with meter fitting piece (3/4" x 110 mm)
9
10
11
12
Differential pressure regulating valve at the entry of the unit
Thermostatic temperature lead module
Thermostatic hot water controller
Strainer
13
15
18
20
Draining set
Return temperature limiter
Circulation
Shut-off ball valve 3/4" AG x 3/4" lG
G Domestic cold water
J
Circulation (see below for dimensioning base plate above E)
Technical Specifications
Material
Taps:
Brass / dezincification-resistant brass
Pipes:
Heat exchanger:
Stainless steel 1.4401
Stainless steel 1.4404 / solder copper and
diffusion
General
Max. operating
temperature:
Operating
pressure:
Minimum cold water
pressure:
Connections:
Page 6
90 °C
PN10
approx. 2 bar
3/4" IG flat sealing
Wall-mounting / Surface Installation
Wall-mounting without connecting rail
(1)
(2)
(3)
(4)
(5)
(6)
Mounting points
Screw
Dowel
Hole
Base plate
Spare fastening in the event of a large heat exchanger
When surface-mounting without a connecting rail, the
Apartment Unit is mounted to the wall. Carry out the
installation with the following steps:
1 Marking the mounting holes.
Mark the position of the mounting holes in accordance with the
assembly drawing in the product configuration.
2 Prepare the mounting holes.
Prepare the holes such that the supplied dowels (synthetic
straddling dowels, suitable for concrete and brick walls) can be
countersunk easily, free of clearance and succinctly.
Please note: The diameter and depth of the hole depend on
the dowel and the wall thickness.
This figure is a schematic diagram and makes
no claims to be complete. No responsibility is
taken for the correctness of this information.
Wall-mounting with connecting rail
3 Mounting the Apartment Unit.
Position the connecting rail vertically and horizontally. Attach
the supplied screws with the washers to the mounting points of
the base plate. Tighten the securing screws stress-free until
the Apartment Unit fits tight and firm.
(1)
(2)
(3)
(4)
(5)
(6)
Mounting points
Screw
Dowel
Hole
Base plate
Spare fastening in the event of a large heat exchanger
For surface-mounting with a connecting rail, a mounting rail
with ball valves will already be supplied to the construction
site in the shell construction phase. This will allow you to
pre-assemble, rinse and fill the piping. The device will be
attached later.
1 Marking the mounting holes of the connecting rail.
- Mark the position of the mounting holes in accordance with the assembly drawing in the product configuration.
2 Preparing the mounting holes of the connecting rail.
- Prepare the holes such that the supplied dowels (synthetic straddling dowels, suitable for concrete and brick
walls) can be countersunk easily, free of clearance and succinctly.
Please note: The diameter and depth of the hole depend on the dowel and the wall thickness.
3 Mounting the connecting rail.
- Position the connecting rail vertically and horizontally according to the product configuration.
- Insert the supplied screws with the washers.
- Tighten the securing screws stress-free until the connecting rail fits tight and firm.
The connecting rail is mounted to the wall and can be used for the pre-installation of the pipelines.
4 Marking the mounting holes of the Apartment Unit.
- Observe the spacing between the pipelines in accordance with the assembly drawing in the product configuration.
- Mark the position of the mounting holes in accordance with the assembly drawing in the product configuration.
5 Preparing the mounting holes of the Apartment Unit.
- Prepare the holes such that the supplied dowels (synthetic straddling dowels, suitable for concrete and brick
walls) can be countersunk easily, free of clearance and succinctly.
Please note: The diameter and depth of the hole depend on the dowel and the wall thickness.
6
-
Page 7
Mounting the Apartment Unit.
Position the Apartment Unit on the connections (connection fittings) of the connecting rail and screw in place.
Insert the supplied screws with the washers on the mounting points of the base plate.
Tighten the securing screws stress-free until the Apartment Unit fits tight and firm.
Installation with flush-mounted box
These figures are schematic diagrams and make no claims to be complete. No
responsibility is taken for the correctness of this information.
The Apartment Unit can be integrated into a wall with the flush-mounted box. When
mounting with a flush-mounted box, a base frame including a connecting rail, top
frame and door will already be supplied to the construction site in the shell
construction phase. This will allow you to pre-assemble pipelines and to fasten the
basic unit later. Fasten the Apartment Unit to the flush-mounted box according to the
following steps:
(1) Base frame
(2) Top frame
(3) Door
(4) Screed protection baffle
(5) Stabiliser bar
1 Preparing the flush-mounted box
Flush-mounted box (schematic diagram without connection bar)
- Dismount the top frame and the door by pulling both forward out of the base frame.
- Keep the top frame, the door and the connecting rail for mounting later.
- Mount the enclosed stabiliser bar to the flush-mounted box in accordance
with the product configuration.
2 Marking the mounting holes for the base frame
Mark and prepare mounting holes for the base frame (schematic diagram)
(1) Wall
- The following should also be taken into consideration for floor-standing installation:
Determine the depth according to the table. Set the height by means of the
adjustable feet.
(2) Unfinished floor
(3) Hole
(4) Dowel
- Mark the position of the mounting holes on the wall.
3 Preparing the mounting holes for the base frame
- Observe the mounting dimensions in the product configuration when dry mounting
(e.g. in a stud frame).
- Ensure that a professional and correct screw fitting is used for the wall.
- Prepare the holes such that the supplied dowels (synthetic straddling
dowels, suitable for concrete and brick walls) can be countersunk easily,
free of clearance and succinctly.
4 Attaching and fastening the base frame
Attach and fasten the base frame (schematic diagram)
- Take the table into consideration. Here you will find the dimensions for the
(1) Base frame
installation heights.
(2) Screw
- Position the base frame on the wall.
(3) Screed protection baffle
(4) Dowel
- Insert the provided screws.
- Tighten the securing screws stress-free until the base frame fits tight and firm.
- For floor-standing installation, position the screed protection baffle by
arranging and aligning the depth adjustment.
If the connecting rail has not been mounted yet, then mount it as specified in
the following step.
5 Fastening the connecting rail.
Install the connection bar in the flush-mounted box
(1) Base frame
- Remove the stabiliser bar in the flush-mounted box.
(3) Washer
The stabiliser bar will no longer be required now and can be
disposed of accordingly.
- Position the connecting rail on the bolts in the flush-mounted box. For
this, observe the respective assembly drawing.
- Attach the supplied washers and nuts.
- Align the connecting rail vertically and horizontally.
- Tighten the nuts stress-free until the connecting rail fits tight and firm.
Page 8
(2) Connecting rail
(4) Nut
Installation with flush-mounted box
6 Installing the Apartment Unit in the flush-mounted
box.
Install the basic unit in the flush-mounted box (schematic diagram
without connection bar)
- If not already removed, remove the stabiliser bar in the flushmounted box.
The stabiliser bar will no longer be required now and can be
disposed of accordingly.
- Position the Apartment Unit on the bolts in the flush-mounted box. For
this, observe the respective assembly drawing.
- Attach the supplied washers and nuts.
- Align the Apartment Unit vertically and horizontally.
(1)
(2)
(3)
(4)
(5)
- Tighten the nuts stress-free until the Apartment Unit fits tight and firm.
Base frame
Basic unit
Washer
Nut
Feet
7 Mounting the top frame and door.
Mount the top frame, screed protection baffle and door
(schematic diagram without connection rail)
(1) Top frame
(2) Screed protection baffle
(3) Screed floor
- Push the top frame with the fastening clips onto the fastening
bolts.
(4) Door
- Pull the four wing nuts tight.
- Insert the door.
The Apartment Unit is mounted in the wall with the flush-mounted box.
Recess Dimensions
Wall-mounted design
Drag sendzimir-galvanised, top frame and door white powder-coated
(similar RAL 9016). Removable door with a chrome-plated twist lock and
horizontally arranged air inlets and ventilation openings to prevent heat
from being trapped or built-up as well as condensation forming.
Installation depth: 150 mm
Box type
Recess dimensions W x H
WS-UP 49-85-15
530 x 870
WS-UP 61-85-15
650 x 870
The recess height for the flush-mounted housing is calculated according
to the height of the floor superstructure and is measured from the
unfinished floor 2 (see table). The feet will be set to the specified height
of the floor superstructure. This ensures that the screed ends
underneath the top frame and that this can be easily attached later.
Table A
ST design
with height adjustable feet / screed deflector bar.
Recess height 1
Floor
180 mm
1030 mm
superstructure
1603mm
1010 mm
140 mm
120 mm
100 mm
990 mm
970 mm
950 mm
Recess dimensions W x H
530 x see table A
180 mm
1400 mm
WS-UP 61-92-15 ST
650 x see table A
160 mm
1380 mm
140 mm
1360 mm
120 mm
1340 mm
100 mm
1320 mm
WS-UP 61-120-15 ST
650 x see table B
WS-UP 81-120-15 ST
850 x see table B
Table B
Cabinet type
WS-UP 49-92-15 ST
Page 9
Installation
Connecting the Hydraulics
Risk of injury resulting from incorrect installation!
Personal injury may result from leaking connections.
- Connect the hydraulics correctly.
- Use the provided gasket seals when connecting the pipelines.
For the heating system to function correctly the specified line cross-sections must not be reduced.
The connections for optional components (e.g. metres) are sealed in the device with black synthetic fitting pieces. Should the
fitting pieces not be replaced by optional components, the synthetic fittings parts must be replaced by pipes made of stainless
steel 1.4401. These can be obtained from your supplier.
- Ensure that the heating supply and return as well as the hot and cold water are correctly connected.
- Install a filling and drain valve at a central and appropriate point on site to fill the heating system.
- Follow the hydraulics diagram in the product configuration as an installation guide.
Connect the hydraulics with the following steps:
1 Prepare the pipelines. - Prepare the pipelines according to your plan.
2 Mount the pipelines. - Mount the pipelines to the Apartment Unit according to your plan.
3 Insulate the pipelines according to national provisions. - Insulate the pipelines with thermal insulation. The Apartment Unit is
connected to the hydraulics.
Example application:
Heating system
Page 10
Commissioning
CAUTION! Property damage resulting from incorrect commissioning!
Incorrect commissioning may lead to property damage.
- Only a specialised authorised tradesperson may carry out the commissioning.
Observe the subsequent rinsing information for commissioning:
Prior to filling the device the entire heating system and the apartment heating must be thoroughly and carefully rinsed in advance.
Prior to commissioning the strainers must be checked, and if required, rinsed/cleaned. Check the leak tightness of the flat-sealing
connections in the Apartment Unit. If required, tighten the connections. When tightening connections, always secure and tighten the
opposite side. Vent the pent-up air in the Apartment Unit by opening the vent screw. In this process, pay attention to the operating
pressure of the system.
Proceed according to the following steps to commission the Apartment Unit:
1.
2.
3.
4.
5.
6.
Inspect the device prior to commissioning
Rinse
Fill
Ventilate
Check the settings
Fill in acceptance report (commissioning)
7. Hand over the device to the operator
The steps are described in detail below.
Inspect the device prior to commissioning
Prior to any commissioning work, a visual inspection must be carried out as follows to ensure correct mounting:
- Check if the dirt from the mounting and the dust of the device have been correctly removed.
- Check all pipelines and connections of the device for leak tightness.
- Optional: check whether the electrical connections were carried out correctly, the polarity of the mains connection is correct and the earthing
is provided.
If an assembly or mounting error is determined during the visual inspection, commissioning must be temporarily stopped and
the error must be rectified.
A vent is required at the end of each line. This prevents the units from drawing-in air and, as a result, causing malfunctions to the
units.
Rinse
Proceed according to the following steps to rinse the Apartment Unit:
1 Fill with heating water.
Fill the Apartment Unit with heating water at one of the filling and drain valves (13).
2 Rinse the Apartment Unit.
- Open the other filling and drain valve.
- Let the heating water drain from the Apartment Unit into an appropriate collecting container.
Fill
Proceed according to the following steps to fill the Apartment Unit:
- Fill the Apartment Unit with heating water at the filling and drain valve.
Ventilate
Proceed according to the following steps to vent the Apartment Unit:
(5) Venting valve
- Vent the Apartment Unit by means of the venting valve. (The exact position is
described in the product configuration.)
Page 11
Hydraulic Diagram WK-S slim design
WK basic equipment for slim and broad designs
1
Stainless steel plate heat exchanger
2
3
4
5
6
7
1
4
Proportional flow controller with priority circuit
Cold water throttle plate
Heat meter fitting piece (3/4" x 110 mm, Qn 1.5)
Vent (only for the unit, not the system)
Zone valve to limit the heating flow rate
Multi-block to incorporate additional accessories
26
27
A
B
C
Primary inlet - strainer (in the multi-block)
Cold water - strainer
Domestic hot water
D Heating water - return line (primary)
Cold water from the line
E Heating - inlet flow (secondary)
Heating water - inlet flow (primary)
F Heating - return line (secondary)
Brass piece to incorporate the thermowell M10 x 1 direct
immersing incl. bleed and drain valve
16 Base plate
Additional components for extended equipment
8
Cold water domestic outlet with meter fitting piece (3/4" x 110 mm)
9
10
11
12
13
15
20
Differential pressure regulating valve at the entry of the unit
Thermostatic temperature lead module
Thermostatic hot water controller
Strainer
Draining set
Return temperature limiter
Shut-off ball valve 3/4" AG x 3/4" lG
G Cold water for the apartment
J
Circulation (see below for dimensioning base plate above E)
Dimensioning flush-mounted distribution cabinet
Top frame
Flush-mounted
base frame
Base plate
Ball valve rail
Ball valve mounted
Dimensioning base plate
Ball valve rail
mounted in
advance
Box
Cabinet
without rail ball
valve on the unit
Page 12
Hydraulic System WK-B broad design
WK-B with advanced equipment (basic equipment see WK-S)
1
2
3
4
5
6
7
8
9
10
11
13
14
16
18
19
20
26
27
A
B
C
D
Stainless steel plate heat exchanger
Proportional flow controller with priority circuit
Cold water throttle plate
Heat meter fitting piece (3/4" x 110 mm, Qn 1.5)
Vent (only for the unit, not the system)
Zone valve to limit the heating flow rate
Multi-block to incorporate additional accessories
Cold water domestic outlet with meter fitting piece (3/4" x 110 mm)
Differential pressure regulating valve at the entry of the unit
Thermostatic temperature lead module
Thermostatic hot water controller
Draining set
Brass piece to incorporate the thermowell M10 x 1
Base plate
Drinking water circulation
Non-return valve
Shut-off ball valve 3/4" AG x 3/4" lG
Primary inlet - strainer (in the multi-block)
Cold water - strainer
Domestic hot water
E
Cold water from the line
F
Heating water - inlet flow (primary) G
Heating water - return line (primary) J
Heating - inlet flow (secondary)
Heating - return line (secondary)
Domestic cold water
Circulation
Additional components for extended equipment
12
21
22
23
32
Strainer
Regulating screw joint bypass
Non-return valve
Pump module
Actuator
Flow manifold
Extended equipment with heating circuit manifold
24 Heating circuit connection for a 2nd heating circuit
Return collector
28. Control valve
29. HCC Digital heating circuit controller
30. Flow - sensor
Raumatic RMP 230 with pump logic
31. External temperature or room sensor
35. Zone valve for 2nd statical heating circuit
H/I Ball valve set for 2nd heating circuit connection.
Page 13
Dimensioning WK-B broad design
Dimensioning flush-mounted distribution cabinet (cabinet height 850 mm)
Top frame
Recess dimensions W x H
Flush-mounted base frame
Top frame
Flush-mounted base frame
Ball
mounted
Ball valve rail
valve
Base plate
Ball valve rail
mounted in
advance
Box
Cabinet
without rail ball
valve on the unit
Dimensioning base plate
Page 14
Dimensioning WK-B broad design incl. manifold
Dimensioning flush-mounted distribution cabinet (cabinet height 1200 mm)
Top frame
Flush-mounted base frame
Top frame
Flush-mounted base frame
Ball
mounted
Ball valve rail
valve
Base plate
without rail ball
valve on the unit
Return collector
Flow manifold
Page 15
Ball valve rail
mounted in
advance
Installation Parts Base Unit
Components
Description
Plate heat
exchanger
1 Stainless steel plate heat exchangers are installed in the Apartment Unit. The large thermal
length of the heat exchanger ensures that the heating water is cooled properly and thus results
in low return temperatures. The energy is supplied through heating water with a flow temperature
of at least 55 °C via the heating water inlet.
Proportional flow
controller valve
2 The temperature of the domestic use water is regulated by means of a pressure controlled
proportional flow control valve (proportional flow controller). The proportional flow controller
serves to quickly switch the heating to hot water generation. At the same time, a proportionality
of the flow rates of heating water and drinking water is established with the proportional flow
controller as well as a priority circuit for the hot water generation against the domestic heating.
Heating water cannot end up in the drinking water system via the proportional flow controller,
and vice versa. The proportional flow controller is approved by the German Technical and
Scientific Association for Gas and Water (DVGW).
3 The cold water throttle valve is located in the screw fitting between the cold water connection
of the proportional flow controller and the cold water strainer. It is secured by means of a snap
ring. The snap ring must only be changed using special pliers. The cold water throttle valve limits
the cold water flow to the heat exchanger. In this process, the throttle plate prevents the cold
water volume and thus the hot water supply exceeding the calculated quantity, and the heating
side cannot increase the cold water to the desired temperature.
Cold water throttle
valve
WMZ
Heat meter section
4 The heat meter section is able to incorporate a heat meter on site (110 mm x 3/4" AG). A direct
immersing M10x1 sensor pocket is available to incorporate the flow sensor. Heat meters Qn 1.5
with a very quick sampling rate shall be used on site (1.5 - 2 sec. flow rate measurement every 3
- 4 sec. full measurement, i.e. kWh calculation).
The heat meter serves to invoice the energy consumption of the heating and the hot water
generation. It can also be used to read the temperature and the flow rate of the Apartment Unit.
Zone valve
6 The zone valve is a regulating valve with flow coefficient (Kvs). The hydraulic balancing of the
water volume of the heating circuit in the Apartment Unit can be carried out with the regulating
valve for the heating side. In this process, a orifice adjustment takes place and not a stroke
adjustment. Optionally, an actuator can be installed on the regulating valve which is controlled
via a controller.
Strainer (set)
Page 16
12 The strainer is installed in the secondary return line and serves to protect the heat meter and
the regulating valves. The strainer prevents dirt from entering from the domestic heating circuit,
especially into existing systems.
Draining set
13 Tool to drain and fill the device or the domestic heating even when being serviced.
Strainer in the
primary flow inlet
26 The strainer in the primary flow inlet protects the device from dirt coming from the supply line.
Cold water
strainer
27 The cold water strainer protects the cold water throttle valve and the proportional flow
controller from dirt coming from the drinking water supply.
Installation Parts Accessories
Components
Cold water domestic
outlet with meter
section (1 fitting
piece)
Primary differential
pressure
regulating valve
Secondary
differential
pressure regulating
valve
Thermostatic lead
module
Thermostatic hot
water controller
Return temperature
limiter
Description
8 A cold water domestic outlet with domestic outlet enables the volume of cold water consumed
in a domestic unit to be metered. Meters with an overall length of 110 mm and 3/4" AG
connections can be used. The domestic outlet then supplies the domestic unit with drinking
water.
9 The primary differential pressure regulating valve serves for hydraulic balancing of the
Apartment Unit in the pipe network. Every Apartment Unit with a differential pressure regulating
valve can be pre-set and consequently secures the heating and hot water generation.
38 The secondary differential pressure regulating valve serves for hydraulic balancing of
the domestic heating circuit.
The differential pressure regulating valve is pre-set ex factory.
10 A thermostatic lead module is installed in Apartment Unit Stations or on the last device of a
line and prevents the risers and/or the supply pipes from cooling down in periods where no
heating is taking place and when there are longer tapping periods. A thermostatic lead module is
required at the end for up to 5 apartments on top of each other; coordination is required from 6
apartments on. All apartments that are located over 5 m away from the line should be equipped
with a thermostatic lead module. When mounting a circulation no thermostatic lead module is
required (the thermostatic lead module is included in the scope of delivery).
11 A stable tap temperature can be achieved with the thermostatic hot water controller even with
fluctuating flow temperatures. With a very high flow temperature, the flow rate is throttled in the
heating return line according to the target value (domestic hot water temperature). The return
temperature in the system is thus kept low and protection from scalding is provided. Each
thermostat requires a response time (<3 sec.) until it regulates precisely.
15 Return temperature limiters ensure the set return temperature from the domestic heating
circuit. This is important for condensing technology or alternative energy. Furthermore, this
makes it possible to ensure the return temperature in the system especially for badly or
unplanned domestic heating circuits.
Ball valves with a
strain-way or rightangle design
20 The ball valves only have one shut-off function. The sanitary ball valves are approved by
the German Technical and Scientific Association for Gas and Water (DVGW).
Injection circuit
23 Serves to regulate temperature of panel heating. It is possible to select between constant
value and outside temperature regulation. The constant-head has a temperature range of 20-50
°C. The water volume of the constant-volume heating circuit and of the injection heating circuit
can be harmonised with each other through the regulating screw fitting in the bypass. An highefficiency pump ensures the agitation of the constant part. On request and after technical
consultation, other types of pumps can be installed.
Underfloor
distributors
In panel heatings, underfloor distributors are responsible for the distribution of the heating circuit.
In this process, the heating circuits can be harmonised, shut-off and regulated individually. The
regulation is carried with 2-point actuators via single-room controllers. There is a large selection
of regulation/controller options.
Circulation of
water for domestic
use
18 The circulation of water for domestic use is intended for long hot water pipes > 7 metres,
which ensures the required comfort according to VDI 6003.
Surface-mounted rail Surface-mounted rails serve for the pre-installation of the pipe connections. The devices are
attached briefly before the apartment is handed over. The required shut-off ball valves are
included in the scope of delivery.
Flush-mounted
cabinets
Surface-mounted
cladding
Flush-mounted cabinets serve for the pre-installation of the pipe connections and the insertion
into the wall. The device is inserted after completion of the structural work. A white top frame
with a door completes the cabinet in the wall and makes it possible to access the device at any
time.
Surface-mounted cladding covers the devices in the surface-mounted area.
Page 17
Installation Parts
8 Cold Water Domestic outlet
Meters the overall domestic consumption of cold water. A fitting piece for the cold water meter
3/4" x 110 mm and a T-piece for the domestic outlet pipe, mounted in the unit and tested for
leak tightness Operating pressure: PN 10 Max. operating temperature: 90 °C
9 Differential Pressure Regulating Valve (DRG) at the Entry of the Unit
38 Differential Pressure Regulating Valve (DRG) in the Domestic Heating Circuit
The differential pressure regulating valve is a self-actuated proportional controller, and within
a proportional interval required by control technology, it keeps the differential pressure
constant in the regulated section in a self-operated manner. The target value is infinitely
variable. The setting range is printed on the cap. The target value is lockable and can be read
externally at any time.
A higher setting means a larger pressure difference, and where applicable an equally high
flow rate and/or, if applicable, flow tests via the downstream thermostat valves, for example. A
lower setting means a smaller pressure difference, and where applicable a low flow rate
and/or, if applicable, flow noise via the thermostat valves, for example.
It may first be necessary to readjust the differential pressure regulating valve due to the
pressure loss of the heat meter installed on site. Every heat meter has different pressure
losses with the same flow rate.
Max. operating pressure:
Max. differential pressure:
Max. operating
temperature:
Capillary tube length:
Screw thread:
16 bar (PN 16)
1.5 bar
120 °C
1m
M30 x 1.5
- Turn the hand valve to set the desired target value infinitely.
9 Setting range: 100-400 mbar (150 mbar are pre-set). 38 Setting range: 50-300 mbar
(100 mbar are pre-set).
10 Thermostatic Temperature Lead Module
The thermostatic temperature lead module serves for keeping the supply line warm. The valve
is equipped with a setting scale. The setting range is printed on the cap. The temperature is
measured by means of a direct immersing sensor in the valve unit. The setting is infinitely
variable.
- Set the line temperature on the thermostatic temperature lead module to approx. 15 K below
the network outgoing temperature.
Setting the line lead temperature too low may lead to longer waiting times for hot water
generation. Settings that are too high may increase the heating return temperature.
- Please note:
• By connecting to the capillary pipeline with Ø 6, the flow rates via the valve will also vary.
• Kvs-value: 1.55
Page 18
Max. operating pressure heating: 10 bar (PN
10)
Hysteresis:
+/- 2-3K
Kvs-value:
5
Screw thread:
2 x 3/4"AG cone-shaped
with
cone transitions
Installation Parts
11 Thermostatic Hot Water Controller
The thermal hot water controller provides an upper temperature limit. This serves especially to
provide protection from scalding. The thermal hot water controller is limited (ex work) to a
maximum of 60 °C, but set to 55 °C (scale value 4). In this connection, the hysteresis of the
thermostatic head is taken into account. The presetting of the DHW temperature (tapping
temperature) can be changed on the controller, and can be freely set under 60 °C. Take the
according values in the subsequent table into consideration.
1
2
3
4
5
6
7
Scale value
DHW temperature 20-50 °C 20
25
30
35
40
45
50
1
Scale value
DHW temperature 40-70 °C 40
2
3
4
5
6
7
45
50
55
60
65
70
Proceed according to the following steps to change the presetting:
1 Remove the thermostatic head from the valve.
- Please note: The capillary line must not be bent or broken.
- Using the welding wire, push the setting limiters next to the setting number to the left and right out in the direction of
the union nut. If the valve head has an upper limit (valve can be closed), then you simply have to remove a setting
limiter.
2 Pull off the top of the valve head.
- Draw out the internal fastening with a strong round object.
3
-
Adjust the handle.
Align the white marking on the notched casing with the white alignment mark under the Oventrop lettering.
Gently clip on the handle on setting 5.
Twist the handle from setting 5 to the desired setting. Example setting: for 55 °C, set to scale value 3.
4 Lock the settings
- Attach the clip behind the number set on the hand valve.
- Firmly fit the hand valve again on the set value, ensuring the hand valve is locked with the new setting.
5 Mounting the thermostatic head.
- Screw the valve head onto the valve. The presetting has been changed.
Changing the
thermostatic
hot water
controller
setting
12 Strainer (SF) secondary
Incl. sieve filter and accessories. Installed in
the heating return line (apartment). Fully
assembled ex works and tested for leaktightness (mesh width 0.5 mm)
15 Return Temperature Limiter
The return temperature limiter secures and monitors the return temperature in the heating
circuit. The return temperature limiter will close if there are return temperatures below the set
value. The valve is equipped with a setting scale. The setting range is printed on the cap. The
cap can be fastened with the set screw. The temperature is measured by means of a direct
immersing sensor in the valve unit. The setting is infinitely variable. Set screw with 1.5 mm
hexagon socket
- Set the return temperature on the return temperature limiter.
Please note:
The return temperature limiter does not replace the hydraulic balancing of the domestic
heating.
Please note:
• Kvs-value: 1.55
• Recommended setting for static heating surfaces and two-pipe heating systems: 37.5 °C, if
the heating surface design is 60/40 k.
Page 19
Max. operating pressure
heating:
Operating temperature
heating
(factory setting):
Hysteresis:
Kvs-value:
10 bar (PN 10)
39 °C
+/- 2-3K
1.5
Installation Parts
18 Drinking Water Circulation
Serves to supply tap connections that are far away. Consists of: circulation pump of the type
Star Z Nova, analogue timer, thermostatic temperature lead module, check valve, stainless
steel tubing between heat exchanger and mounting rail without ball valve 3/4" IG (ball valve
must be ordered separately), sealing gaskets are enclosed loose. The circulation set is
completely assembled ex works. Clock timer is enclosed.
23 / 24 Injection Circuit (FPI / EPI)
Optionally, an injection circuit pump module
Scale value
DHW temperature 20-50 °C
1
20
2
25
3
30
4
35
5
40
6
45
7
50
is mounted in the Apartment Unit to regulate the flow temperature of the surface heating (underfloor heating).
The injection circuit is supplied in two basic versions:
• Injection circuit with thermostatic flow temperature control (FPI)
• Injection circuit with 3-point actuator without emergency control function (EPI)
Injection circuit with thermostatic flow temperature control (FPI)
The following overview presents the position of the component parts. The bypass is delivered fully open.
A return flow inhibitor insert is mounted in the screw fitting of the bypass.
The commissioning and adjustment-related work for the individual component parts are specified in detail
below.
1 Set circulation pump. A Wilo Yonos pump is installed in the injection circuit: Take the installation
instructions of the pump manufacturer into consideration.
Injection circuit with 3-point actuator without emergency control function (EPI)
With the EPI, the assembly, function and the settings of the component parts are identical to that of the injection circuit with thermostatic flow
temperature control (FPI). The difference is the temperature regulation.
With the injection circuit with 3-point actuator without emergency control function, the temperature is regulated by means of an external control
on the actuator. The required flow temperature sensor must be attached as a contact sensor to the on-site control on the flow line of the constant
circuit.
The actuator rod of the electric motor actuator is moved in the open or close direction by applying the electric operating voltage to Y1 or Y2. As
soon as the voltage is switched off, the actuator remains in its current position.
The actuator is also equipped with a load-dependent switch-off function in the event of overload and in the lift-end positions.
The manual operation makes it possible to bring the actuator into every desired position by means of the hexagon socket wrench (3 mm).
If there is a control signal from the controller, this shall take priority in determining the position. If the manually set position should be kept, the
connection cable must be unplugged or the operating voltage must be switched-off.
• For regulating, please refer to the operating instructions of the control unit.
• Please take the following information into consideration for the installation and mounting of the actuator.
The electric motor actuators can be operated in every installation position except when mounted vertically downwards.
See page 24-25 for cabling.
Page 20
Adjust the zone valve
- Set the desired value on the hexagon with a SW 13 open-end wrench or with a special wrench.
- Please note: The desired setting must point to the marking. Interim positions are not permitted.
(1) Hexagon 13 mm
(2) Setting
(3) Marking
(a) Pressure loss Ap [mbar]
(b) Pressure loss Ap [Pascal]
(c) Mass flow rate sqm [kg/h]
Description
Setting
Kv-value
1
Setting
range
2
3
4
5
Factory
setting
6
0.027 0.056 0.171 0.314 0.447
0.57
0.055 0.170 0.313 0.446 0.-56
0.-65
1-6
4
(27 - 650 l/h) (314 - 446 l/h)
Actuator
The thermal actuator is mounted on the zone valve and is regulated via
a room thermostat that is located in the main control room. Here, any
user can set the desired room temperature incl. lowering the
temperature for the night (night mode).
blue
brown
In this combination, the unit is compliant with the German Energy
Saving Ordinance (EnEV).
Can only be used for the design without the pump module and/or
system separation.
brown
blue
green/yellow
Operating voltage: 230V AC 50/60 Hz
Operating line:
1W
Wire:
2 x 0.75 mm2 (1 x blue / 1 x brown)
Page 21
Dual heat exchanger module
This module can be used for a local heating network with the according technical
specifications. The primary heating side is separated from the secondary network by means of
a heat exchanger. In this process, an expansion vessel is required that is mounted on a
double back panel with the casing in the surface installation version. For the flush-mounted
design, the expansion vessel is mounted by the customer. The system separation module can
only be used with the broad design. Not all models are possible here, e.g. 2nd static heating
circuit pump module.
The controller can be used via a fixed value control, see table, on the injection circuit 20-50
°C and/or 40-70 °C on heating systems, or weather-compensated via a 3-point actuator.
Scale value
DHW temperature 20-50 °C
1
20
2
25
3
30
4
35
5
40
6
45
7
50
Scale value
DHW temperature 40-70 °C
1
40
2
45
3
50
4
55
5
60
6
65
7
70
Dual heat exchanger unit
Possible in the flush-mounted casing
with a width of 61 or 81. Installation
depth 170 mm.
WK-B Unit with accessories
System separation module
1 Stainless steel plate heat exchanger
5 Vent (only for the unit, not the system)
6 Zone valve to limit the heating flow rate
12 Strainer
23 Pump
28 Control valve
41 Expansion vessel
43 Relief valve
E Heating - inlet flow (secondary)
F Heating - return line (secondary)
Page 22
Apartment Unit Heating-Cooling-Module
The heating/cooling unit must be compiled of the following components:
• Heating-cooling module
• WK-B Apartment Units (without pump module)
• Flush-mounted casing incl. feet (only possible in the 81 model)
The unit is pre-installed on a galvanised base plate. Dimensions: H: 600 x W: 755.
1
2
3
4
5
7
8
9
10
11
13
14
16
20
21
22
23
24
Stainless steel plate heat exchanger
Proportional flow controller with priority circuit
Cold water throttle plate
Heat meter fitting piece (3/4" x 110 mm, Qn 1.5)
Vent (only for the unit, not the system)
Multi-block to incorporate additional accessories
Cold water domestic outlet with fitting piece (3/4" x 110 mm)
Differential pressure regulating valve at the entry of the unit
Thermostatic temperature lead module
Thermostatic hot water controller
Draining set
Brass piece to incorporate the thermowell M10 x 1
Base plate
Shut-off ball valve 3/4" AG x 3/4" lG
Throttel valve in the bypass
Check valve in the bypass
Heating circuit pump
Control valve with fixed value control + safety temperature
limiter
26 Primary inlet - strainer (in the multi-block)
27 Cold water - strainer
35. Zone valve for 2nd statical heating circuit
49 Cold water meter fitting piece (3/4" x 110 mm)
50 Heating-cooling controller
A
B
C
D
E
F
G
H
I
K
L
Domestic hot water
Cold water from the line
Heating water - inlet flow (primary)
Heating water - return line (primary)
Heating - cooling inlet flow (secondary)
Heating - cooling return line (secondary)
Domestic cold water
2nd static heating circuit - inlet flow (sec.)
2nd static heating circuit - return line (sec.)
Cooling - inlet flow (primary)
Cooling - return line (primary)
With the heating/cooling Apartment Unit, the apartments can be equipped with hot water generation (using the continuous flow principle),
radiator heating and temperature control for flooring. For this a heating/cooling module is required. This is controlled via a weathercompensating heating/cooling controller. Up to 100 apartments can be connected with an external sensor via a relay box (see diagram page
24).
Page 23
Connection External Sensor
Heating/Cooling Controller
Controller
Controller
Controller
Controller
Controller
Controller
Controller
Controller
Controller
Controller
Controller
Controller
Controller
Controller
The controllers supplied by a 1894-ZAT measuring converter can be arranged in a random topology (bus structure, line structure, start
structure, etc., see example above). The connection is effected via a bipolar line that is suitable for low-voltage (2 x > 0.5 mm2); the length of
which may be several hundreds of metres. The n-type conductor of the ZAT signal must not be connected with any local neutral conductor of a
controller.
Setting range and parameters
Relative weighting
External temperature default value
T1/T2 T1 ... (T1 + T2) / 2 ... T2
-10 °C ... 30 °C or no default value
Technical Specifications
Nominal voltage
Permissible voltage range
Consumption
Nominal control current
Protection type
Protection class
Measuring range
Alarm output
50 V~
Low-voltage terminals
Extra-low voltage connections
Sensor type
Detection limit
Sensor break
Sensor short circuit
Enclosure
Mounting plate
Operating temperature
Storage temperature
Weight
Device safety and EMC
230 V, 50 Hz
207 V to 253 V
approx. 1.5 VA
1.2 A
IP 20 (according to EN 60529)
II if installed accordingly
-30 °C to +105 °C
potential-free changeover contact, 1 A at 30 V =
electrical isolation against sensor input:
cage clamp terminals for 2.5 mm2 (bottom)
cage clamp terminals for 2.5 mm2 (top)
NTC according to DIN EN 50350, tekmar series 31
resistance > Rsensor @ (-30 °C)
resistance < Rsensor @ (105 °C)
3 TE according to DIN 43880
TH-35 mounting rail according to DIN EN 60715
0 °C to 50 °C, condensation is not permissible
-20 °C to 70 °C, condensation is not permissible
approx. 0.25 kg
in accordance with EN 60730-1 and EN 60730-2-9
Further specifications in accordance with EN 60730-1
Heat and fire resistance:
Ball indentation test:
Rated voltage surge:
Mode of operation:
Connected load for EMC
interference emission measurement:
Page 24
category B/D
+125 °C
4 kV
type 1Y
230 V~, load 0.5 A
Connection Diagram Heating/Cooling Controller
N-Sp.
L
N
L'
1
2
N
3'
3
4
5 no
5 nc
6'
6
N
7
X
N
External
sensor
Comment
RP 24
RP 25
Supply
Supply
Line L
Line N
Bridge circuit to L
Mixer open
Mixer closed
N
Heating pump
Release heating
Release heating
N
Circulation pump
Central external temperature signal
Central external temperature signal
Line L
Line N
Bridge circuit to L
Mixer open
Mixer closed
N
Release cooling
Release cooling
Heating/cooling pump
Cooling Hydraulics
Cooling Hydraulics
Release heating
Release heating
N
Circulation pump
Central external temperature signal
Central external temperature signal
Normally open contact
Normally open contact
Internal on N
Normally open contact
Normally open contact
Changeover contact
Changeover contact
Normally open contact
Internal on N
Normally open contact
Not assigned
N (1894)
Al (1894)
Information for mounting:
Exclusively the sensor types specified below should be used.
Information for malfunctioning:
Many of the electronic devices commonly used now may cause interfering
or disturbing effects, which, despite technical precautionary measures,
may lead to faults in other devices. If our device is affected by such
interferences/malfunctions and does not respond or it shows
faulty/inaccurate functioning, the fault can often be rectified by switching
the power supply off and on again. The device can also be reset by
switching off the upstream circuit breaker for approx. 10 seconds. In most
cases, the device works again correctly after restarting. Should this not be
the case, please contact our Service Team.
SK-SP.
x1
x2
x3
x4
x5
x6
y4
y5
y6
x7
x8
x9
y7
y8
y9
Page 25
Comment
RP 24
RP 25
External
Ground
Room
Water
Ground
Water
Circulation
Ground
Circulation
Small relay nc
Small relay
Small relay no
Dew point
Ground
-
External temperature sensor
GND
RT sensor heating
Flow sensor heating
GND
Return line sensor heating
WL sensor circulation
GND
Circulation sensor circulation
GND
-
External temperature sensor
GND
RT sensor
Flow sensor heating/cooling
GND
Return line sensor
heating/cooling
WL sensor circulation
GND
Circulation sensor circulation
H/C relay heating
Common H/C relay
H/C relay cooling
Dew point sensor
GND
-
Electrics
- Wiring
Electrics
- Wiring
Connection Example Constant Regulation
Room thermostat RTA
WK unit
Actuator for
additional safety
Fixed value controller to regulate temperature
of the secondary heating circuit
Pump
Raummatic RMP
2-core
2-core
Actuator for the heating circuits
Room thermostat
Heating circuit
controller
Room thermostat
Room temperature
controller
Spare fuse
Apply bridge
circuit 1-2
on site, main switch
Zone
valve
in
the
secondary return line (pos.
6)
Actuator for additional safety. Connected in
parallel to the pump. If pump is off, actuator
closes (normally closed)
Set safety temperature limiter to 55
°C
Page 26
Thermal actuator
Electrics - Wiring
Connection Example Weather-Compensated 3-point Controller
WK unit
Raummatic RMP
Actuator for
additional safety
R
o
o
m
t
h
e
r
m
o
st
at
R
T
A
Pump
2-core
2-core
External
sensor
3-way
mixing valve
Actuator for the heating circuits
Flow sensor
Boiler sensor
The boiler sensor is only required for the controller cascade. One external sensor
per cascade. Max. 15 controllers to one external sensor.
The boiler sensor is not required if the HCC (digital heating controller) is only used
for one apartment.
An external sensor is still required.
Room thermostat
Heating circuit
controller
Room thermostat
Room temperature
controller
Spare fuse
Zone valve in the secondary
return line (pos. 6)
Heating circuit
controller
on site, main
switch
Pump
Thermal actuator
Set safety temperature limiter to
55 °C
Page 27
Valve with
actuator
3-way
Boiler
sensor
Flow sensor External sensor
DHR 0321 (HCC) Settings
P-no.
01
02
03
04
05
06
07
08
09
10
11
13
14
15
16
18
19
20
21
22
23
30
31
32
33
34
35
36
37
38
50
51
52
53
60
61
69
Parameter
Setting range
Factory setting
Heating programme 2 for Monday
00:00 - 24:00
06:00 - 08:00
16:00 - 22:00
Heating programme 2 for Tuesday
00:00 - 24:00
Heating programme 2 for Wednesday
00:00 - 24:00
Heating programme 2 for Thursday
00:00 - 24:00
Heating programme 2 for Friday
Heating programme 2 for Saturday
00:00 - 24:00
07:00 - 23:00
Heating programme 2 for Sunday
00:00 - 24:00
Mode direct heating circuit
—, Off, Auto1, Auto2, Day, Night
—
Heating curve direct heating circuit
0.20 - 3.00
1.20
Room sensor impact direct heating circuit
OFF, 0-20
10
Room sensor correction direct heating
- 5 to + 5°K
0
circuit
Mixer circuit
(HK2) mode
—, Off, Auto1, Auto2, Day, Night
—
Heating curve mixer circuit
0.8
Set parameter 14 <1 for underfloor heating and > 1 for radiators.
Room sensor impact mixer circuit
OFF, 0-20
10
Room sensor correction mixer circuit
- 5 to + 5°K
0
0 = Off
Domestic hot water according to
2
1 = Heating programme 1
programme
2 = Heating programme 2
3 = 1 hour prior to heating
4 = 24h domestic hot water
Display heating programme, at the bottom
1
0= for direct heating circuit 1
of the display
= for mixed heating circuit
Code no. entry
0000- 9999
0000
Personal settings
Code no. modification
0000-9999
0000
External temperature frost protection
-15.0 to + 5.0 °C
0.0 °C
CAN bus identifier mixer circuit
1- 15 (2-15 with direct heating circuit)
2
With an active heat generator (boiler module / heating module) only displayed with mounted boiler sensor
Maximum temperature heat generator
30 - 110 °C
85 °C
Minimum temperature heat generator
10 - 80 °C
40 °C
Start-up load relief
10 - 80°C
35 °C
Minimum limitation heat generator
0,1,2
1
Dyn. Switching hysteresis
5 - 20 ° K
10 °K
Hysteresis time
0 - 30 min
0 min
Burner start-ups
Display only
Burner operation time
Display only
Address heating module
—, 1- 8
--With an active hot water function
Charge pump lock
0.1
1
Parallel pump operation
0.1
0
Anti-Legionella function
0.1
1
Increase of temperature with domestic hot
0 - 50 °K
20 °K
water
With an active direct heating circuit
Maximum flow temperature direct heating
20 - 110 °C
80 °C
circuit
Minimum flow temperature
direct heating
20 - 110 °C
10 °C
circuit
With an active mixer heating circuit
Additional mixing function (P 77 - 79)
0.1
1
70
71
72
73
74
75
76
77
78
79
80
81
82
97
98
99
Page 28
Maximum flow temperature mixer circuit
20 - 110 °C
50°C
With underfloor heating set parameter 70 according to the manufacturer's instructions
Minimum flow temperature
10 - 110 °C
10 °C
Mixer dynamic OPEN
P 69= 1 5- 200
10
Mixer dynamic CLOSED
5
For heating system controllers with an active cooling function
T- flow cooling
0,1, 15 - 25 °C
0
T- room cooling
—,0, 0 - 40°C
25 °C
Minimum external temperature cooling
—, 20- 40°C
—
P 77 - 79 can only be set if P69 = 1
Mixer sampling time
10 - 200 s
100 s
Mixer running time limitation
—, 0 - 30 min
6 min
Mixer start seconds
0 - 30 s
20 s
With multifunctional relay (MF relay)
MF relay function
0-34
2
Switching temperature of the MF relay
30 - 90 °C
30°C
Hysteresis of the MF relay
2 - 10 K
5K
Service
PC release (0000= no release)
0000- 9999
0000
Relay test
0, 1-6
0
Software version ( 63.XX)
69.00- 63.99
Display only
DHR (HCC) Cascade Connection
Connection Lago controller via an internal CAN bus interface
Pump EPI
Pump
module 230 V
module 230 V
Actuator 230 V/
3-point
EPI
Actuator 230 V/
3-point
Sensor flow EPI module
Flow manifold
Sensor flow EPI module
Boiler flow sensor (only
required for
masterstation)
Flow manifold
Return collector
Return collector
Raummatic RMP 230 with pump logic
Raummatic RMP 230 with pump logic
With an external sensor, up to 14 additional HCC controllers can be connected via the digital heating circuit controller. This is carried
out via a master controller that is connected to a boiler and external sensor.
The additional controllers are connected via a CAN bus cable in a star-shaped, circular or cross-shaped layout. A crosspoint must always be
set (see diagram).
Connection Diagram Controller with Base
Senso
r
Top
- Use firm lines or flexible lines with wire end sleeves for the
connection (230 V).
- Lay CAN bus and sensor lines physically separated from
the power lines.
- Do not mix 1 kΩ and 5 kΩ sensors.
- Only connect sensors that are required for the
system.
- Lay a bridge circuit between terminal 16 and GND
collective terminal. If the bridge circuit between terminal 16
and GND is forgotten, the sensor values will not be
displayed. Set bridge circuit and reset heating controller.
230 V~, switching capacity of the relays 2 A, 250
V~
1 N-conductor network
2 Supply voltage heating controller L1
3 Supply voltage for the outputs L1'
4 Pump heating circuit 1 or
Multifunctional relay
5 Pump heating circuit 2
6 Storage tank charge pump
7 Mixer open
8 Mixer closed
9-10 Burner potential-free
Safety extra-low voltage
11 - 14 CAN bus
15 - 17 Remote controller 2 (FBR2), alternative:
15 - 16 Room thermostat
16 - 17 Telephone switch
18
Storage tank sensor
19
Room sensor or multifunctional sensor
20
21
22
Boiler sensor
Flow sensor
External sensor
Page 29
Domestic hot water temperature is too low or fluctuates:
General inspection of the heating system
Buffer: the buffer temperature should be 5-10 K higher than the desired outlet
temperature.
Heating circuit pump:
if a Grundfoss Magna or Wilo Stratos is installed, this must be set to constant pressure with a pumping head of approx. 9 m or according to the
specifications.
Mixer valve:
Inspection of functioning:
Controller:
Inspection of functioning:
Cold water pressure:
There should be at least 2 bar before the unit but no more than 4 bar.
Inspection of the unit:
Strainer: cleaned in the primary flow line (26)
Flow rate:
if a heat meter is installed, the flow rate is read on the second level. Display e.g. 0.500m3/h
With WK 1:
With WK 1M:
With WK 2:
should be approx. 500-600 l/h, or see characteristic curve
on pagebe29approx. 600-700 l/h, or see characteristic curve
should
on
pagebe30approx. 700-800 l/h, or see characteristic curve
should
on page 31
If this flow rate is not achieved, the differential pressure regulating valve in the line (see original instructions) must be set to 0.3 or 0.4 bar, or a
differential pressure regulating valve is mounted in the unit (9), see settings on page 14. It should also be verified whether the capillary pipeline
is open.
Differential pressure regulating valve (9): please clean
Flow temperature: the flow temperature must be at least 5 K higher than the desired outlet temperature.
Air in the system: the unit must be fully vented (13), also during tapping (5).
Thermostatic hot water controller (11): verify the setting (see page 13).
Proportional flow controller (2): if defect, it must be exchanged.
Whistling sound during tapping:
- the cold water strainer (27) or throttle plate (3) is soiled; please clean (see page 12)
Too long waiting periods for domestic hot water
If present: the thermostatic lead module is set at a temperature that is too low
Set a higher temperature in accordance with page 13, and take the settings information specified there into consideration.
Unit is too far from the line (>7m) - refit the thermostatic lead module
Tapping point is too far from the unit
Recalculate the pipe dimension if over 3 litres, and where applicable, refit circulation unit (inspect on site)
Page 30
Plate Heat Exchanger Specifications - Limit Values for Drinking Water Quality
Corrosion resistance of brazed plate heat exchangers against the dissolved matter: The brazed plate
heat exchanger consists of embossed 1.4404 or SA240 316L stainless steel plates.
The heat exchangers in KaMo Apartment Units are by default manufactured as copper brazed stainless steel plate heat exchangers. Prior to
using these heat exchangers and in line with the facility design, the building service engineer, or respectively the executing installation
company, shall verify whether according to DIN 1988 -7 4.1. and DIN EN 806-5 these domestic hot water analyses have sufficiently taken
matters such as corrosion protection and scale formation into consideration.
This includes the following items:
- Choice of materials
- Consideration of the corrosion-related changes to the quality of the drinking water
- Installation design
- Consideration of the expected operating conditions
If the drinking water has high electrical conductivity of over 500 yS/cm, copper materials may show the appearance of corrosion, which in turn
may lead to damage to the copper brazing in the heat exchanger. Therefore, we recommend using our diffusion brazed stainless steel plate
heat exchangers if there is electrical conductivity of > 500 yS/cm.
The following values for dissolved matter and specific values should be complied with (1.4404 / SA240 316L):
Dissolved matter
+ specific values
Unit
Copper brazed plate heat
exchanger
Diffusion brazed plate
heat exchanger
pH value
* > 7.4 (considering Saturation index)
6 - 10
Saturation index SI
(delta pH value)
-0.2 < 0 < +0.2
No specification
6 - 15
6 - 15
Conductivity
°dH (German
hardness)
µS/cm
10...500
No specification
Filterable matter
mg/l
<30
<30
** Chloride
mg/l
above 100° C no chloride permissible
Free from chlorine
mg/l
<0.5
<0.5
Hydrosulphide (H2S)
mg/l
<0.05
No specification
Ammoniac (NH3/NH4+ )
mg/l
<2
No specification
<100
<300
Total Degree of hardness
Sulphate
Hydrocarbonate
mg/l
<300
No specification
Hydrocarbonate / sulphate
mg/l
>1.0
No specification
Sulphide
mg/l
<1
<5
<100
No specification
Nitrate
Nitrite
mg/l
<0.1
No specification
Iron, solute
mg/l
<0.2
No specification
Manganese
mg/l
<0.1
No specification
Free aggressive carbonic acid
mg/l
<20
No specification
** at 20 °C max. 800 mg/l at
25 °C max. 600 mg/l at 50
°C max. 200 mg/l at 100 °C
max. 0 mg/l
* The pH value must be higher than 7.4. If
the pH value lies between 7.0 and 7.4, the
TOC value must be lower than 1.5 g/m3 or
respectively lower than 1.5 mg/l.
Permissible chloride content
depending on the temperature
(1.4404/SA240 316L)
The specified values are guidelines
and may deviate under certain
operating conditions. Please call us
should you have any questions.
Operating conditions with screwed plate heat exchangers
If screwed plate heat exchangers (GGS240H-...) are used,
specific operating conditions apply.
Observe the following limit values.
Temperature limits: -20 °C ... + 110 °C
Max. operating pressure: 16 bar
Manufacturer's Declaration
The Apartment Unit has been built in accordance with the
state of the art and the recognised safety regulations.
Conformity with the applicable standards has been proven.
(1) Not used
A Chloride content
(mg/kg)
(2) Used with no problems
B Temperature (°C)
Page 31
Characteristic Curve Diagrams WK 1
Pressure loss
Heating water side (primary)
Cold water side (secondary)
Pressure loss bar
Pressure loss bar
Maximum
output range
Heating water demand
litre/h
Pressure loss (primary) without accessories and without heat meter.
Recommendation for the heat meter: QN = 1.5
Tapping output litre/min
Pressure loss without orifice plate. With an orifice plate the pressure
loss has a maximum higher output of approx. 0.3 to 0.4 bar.
Output and return temperatures
Heating cold water by 40 °K (10-50 °C)
Heating water flow temperature
Heating water demand litre/h
Heating water demand litre/h
Heating cold water by 35 °K (10-45 °C)
Tapping output litre/min
Return temperature °C
Return temperature °C
Tapping output litre/min
Heating water flow temperature
Tapping output litre/min
Page 32
Heating water flow temperature
Heating water flow temperature
Tapping output litre/min
Characteristic Curve Diagrams WK 1M
Pressure loss
Heating water side (primary)
Cold water side (secondary)
Pressure loss bar
Pressure loss bar
Maximum
output range
Heating water demand litre/h
Pressure loss (primary) without accessories and without heat meter.
Recommendation for the heat meter: QN = 1.5
Tapping output litre/min
Pressure loss without orifice plate. With an orifice plate the pressure
loss has a maximum higher output of approx. 0.3 to 0.4 bar.
Output and return temperatures
Heating water flow temperature
Heating
litre/h
water
water
Heating
litre/h
Heating cold water by 40 °K (10-50 °C)
demand
demand
Heating cold water by 35 °K (10-45 °C)
Tapping output litre/min
Return temperature °C
Return temperature °C
Tapping output litre/min
Heating water flow temperature
Heating water flow temperature
Tapping output litre/min
Heating water flow temperature
Tapping output litre/min
Page 33
Characteristic Curve Diagrams WK 2
Pressure loss
Cold water side (secondary)
Heating water side (primary)
Pressure loss bar
Pressure loss bar
Maximum
output range
Heating water demand litre/h
Pressure loss (primary) without accessories and without heat meter.
Recommendation for the heat meter: QN = 1.5
Tapping output litre/min
Pressure loss without orifice plate. With an orifice plate the pressure
loss has a maximum higher output of approx. 0.3 to 0.4 bar.
Heating cold water by 35 °K (10-45 °C)
Heating cold water by 40 °K (10-50 °C)
Heating water demand litre/h
Heating water demand litre/h
Output and return temperatures
Heating water flow temperature
Heating water flow temperature
Tapping output litre/min
Page 34
Tapping output litre/min
Return temperature °C
Return temperature °C
Tapping output litre/min
Heating water flow temperature
Heating water flow temperature
Tapping output litre/min
Characteristic Curve Diagrams WK 3
Pressure loss
Heating water side (primary)
Cold water side (secondary)
Maximum
output range
Pressure loss bar
Pressure loss bar
Maximum
output range
Heating water demand litre/h
Pressure loss (primary) without accessories
Recommendation for the heat meter: QN = 1.5
and
without
Tapping output litre/min
heat
meter.
Pressure loss without orifice plate. With an orifice plate the pressure loss has a
maximum higher output of approx. 0.3 to 0.4 bar.
Output and return temperatures
Heating cold water by 40 °K (10-50 °C)
Heating water demand litre/h
Heating water demand litre/h
Heating cold water by 35 °K (10-45 °C)
Tapping output litre/min
Return temperature °C
Return temperature °C
Tapping output litre/min
Tapping output litre/min
Tapping output litre/min
Page 35
Date:
Settings protocol for the unit (WK):
Project:
Model:
Part
Serial No.:
Description
Setting
Zone valve to set
the flow rate
Kv-value
Setting
range
1
2
3
4
5
6
0.027
0.055
0.056
0.171
0.313
0.314
0.446
0.447
0.56
0.57
0.65
1-6
(27 650 l/h)
Factory On-site
setting setting
4
(314 - 446
l/h)
TTV
0.170
Thermostatic temperature lead module, capillary 4 mm KVS 1.55
35-60 °C
45 °C
DRG-SE - S
Differential pressure regulating valve, entry of the unit, slim version (WK S)
50-300 mbar
150 mbar
DRG-SE - B
Differential pressure regulating valve, entry of the unit, broad version (TW, WK B)
100-400 mbar
150 mbar
DRG-WH
Differential pressure regulating valve
50-300 mbar
100 mbar
DRG in the line
Differential pressure regulating valve in the line
min. 300 mbar
TWR
Thermostatic hot water controller, downwards infinitely variable
Scale value 40-70 °C
1
2
3
4
5
6
7
Domestic hot water temperature
40 °C
45 °C
50 °C
55 °C
60 °C
65 °C
70 °C
Scale value 20-50 °C
1
2
3
4
5
6
7
20 °C
25 °C
30 °C
35 °C
40 °C
45 °C
50 °C
Domestic hot water temperature
RTB
FPIH
Thermostatic
head (return line)
EPIH
Return temperature limiter, KVS 1.55
Scale value
1
2
3
4
5
6
7
Control temperature (approx.)
20 °C
25 °C
30 °C
35 °C
40 °C
45 °C
50 °C
EPIH weather-compensated pump module, injection circuit, 3-point control
STW
Safety temperature monitor must be set to approx. 50 °C
Rotation
0.25
0.5
0.75
1
1.5
2
3
4
Kv-value
0.06
0.126
0.19
0.25
0.42
0.819
1.236
1.7
Zeta value (3/4")
93250
21150
9300
5370
1900
500
220
116
Bypass
regulating valve
Part
Cold water throttle
plate
Description
4
20-50 °C
7
20-50 °C
45
Adjustment
range 20 - 50
°C
via controller
Bypass
fully open
20 - 90°C
on-site
0.25 - 4
open 4
Model
colour
red
green
brown
black
max. flow rate l/min
12
15
17
19
Model
WP 24- 14
WP 24-20
WP 24-30
WP 24-40
Heat exchanger
40-70 °C
(limited to 60
°C)
TWZ
Domestic drinking water circulation incl. analogue timer,
WMZ
Heat meter section QN 1.5 installation length, 3/4" 110 mm
Not used
Electrical components underfloor heating / static heating surfaces
KTS 230 V
KTS 230V electrical actuator
Room thermostat
230 V
RTA room thermostat
UTW (timer
thermostat with a
RMP
230 V
weekly
programme)
DHR 0321
Timer thermostat (with a weekly programme)
FBR 2
Remote control
RMP 230V Raummatic with pump logic
Digital heating controller
3-point pre-controller
Signature HZB
in printed letters HZB
Service partner
KaMo Frischwarmwassersysteme GmbH
Max-Planck-Straße 11
Telephone: 0 73 91 / 70 07-0
Email:
technik-fws@kamo.de
89584 Ehingen
Fax:
Website:
www.kamo.de
Page 36
0 73 91 / 5 43 15
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