Daikin EKSRPS4 Installation manuals
Operating and installation
instructions
Control and pump unit for solar systems for solar
systems
Operating and installation instructions
Control and pump unit for solar systems
English
EKSRPS4
1 x
Operating and installation instructions
2
Daikin Control and pump unit for solar systems
Daikin EKSRPS4
008.1624644 – 07/2015
List of contents
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.1 Observing instructions . . . . . . . . . . . . . . . . . . . .4
2.2 Warning signs and explanation of symbols. . . . .4
2.3 Avoid danger. . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.4 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.5 Instructions for working safely. . . . . . . . . . . . . . .4
3 Product description . . . . . . . . . . . . . . . . . . .6
3.1 Design and components of the solar system . . .6
3.2 Brief description . . . . . . . . . . . . . . . . . . . . . . . . .7
3.3 System components . . . . . . . . . . . . . . . . . . . . . .7
3.3.1 Control and pump unit for solar systems
EKSRPS4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3.2 Filling and draining cock (KFE BA) for RPS4 . . . . 8
3.3.3 Regulating valve FlowGuard FLG . . . . . . . . . . . . . 8
3.3.4 Storage tank extension kit CON SX . . . . . . . . . . . 8
3.3.5 Storage tank extension kit 2 CON SXE. . . . . . . . . 8
4 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.1 System concepts. . . . . . . . . . . . . . . . . . . . . . . . .9
4.1.1 Parallel connection . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1.2 Serial connection. . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Installing the control and pump unit . . . . . . . . . .9
4.2.1 Installation pump unit. . . . . . . . . . . . . . . . . . . . . . 10
4.2.2 Installation FlowSensor, FlowGuard (optional) . . 11
4.2.3 Installing temperature sensor . . . . . . . . . . . . . . . 12
4.2.4 Preparing and fitting the control system . . . . . . . 12
4.2.5 Fit the covering hood. . . . . . . . . . . . . . . . . . . . . . 14
4.3 Linking several solar storage tanks. . . . . . . . . .15
6.3.10 Burner inhibit contact . . . . . . . . . . . . . . . . . . . . . . 30
6.4 Recommended settings . . . . . . . . . . . . . . . . . . 31
6.4.1 Standard parameter settings, recommended
setting ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.4.2 Additional settings for your solar system . . . . . . . 32
6.4.3 Setting recommendation for the post-heating
via external heat sources or by the electrical
immersion heater, burner blocking contact . . . . . 33
6.4.4 Tips for optimised user behaviour . . . . . . . . . . . . 33
6.4.5 Domestic water hygiene . . . . . . . . . . . . . . . . . . . 33
7 Faults and malfunctions. . . . . . . . . . . . . . . 34
7.1 Display of events . . . . . . . . . . . . . . . . . . . . . . . 34
7.2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 35
8 Hydraulic system connection . . . . . . . . . .37
8.1 Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.2 Connection of a pressure solar panel system . 39
9 Technical data. . . . . . . . . . . . . . . . . . . . . . .40
9.1 EKSRPS4 control and pump unit . . . . . . . . . . . 40
9.2 Sensor characteristics . . . . . . . . . . . . . . . . . . . 40
9.3 Connection allocation EKSRPS4 controller . . . 41
10 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
11 List of keywords . . . . . . . . . . . . . . . . . . . . . 43
5 Start-up and decommissioning . . . . . . . . .18
5.1 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
5.2 Decommissioning . . . . . . . . . . . . . . . . . . . . . . .19
5.2.1 Temporary shutdown. . . . . . . . . . . . . . . . . . . . . . 19
5.2.2 Final shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6 Control unit . . . . . . . . . . . . . . . . . . . . . . . . .21
6.1 Operating and display components . . . . . . . . .21
6.2 Operating mode of control system . . . . . . . . . .21
6.2.1 Pump operation . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.2.2 Booster function for high solar panel
temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2.3 Start optimisation. . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2.4 Switch-on block functions . . . . . . . . . . . . . . . . . . 22
6.2.5 Pump kick function . . . . . . . . . . . . . . . . . . . . . . . 22
6.2.6 Manual operation. . . . . . . . . . . . . . . . . . . . . . . . . 23
6.2.7 FlowSensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.2.8 Output calculation, maximum values,
and yield count . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.2.9 Speed regulation of the solar operating
pump PS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2.10 Total Reset Function . . . . . . . . . . . . . . . . . . . . . . 24
6.2.11 Frost protection function . . . . . . . . . . . . . . . . . . . 25
6.2.12 Leak protection function . . . . . . . . . . . . . . . . . . . 25
6.3 Adjustment and menu guide . . . . . . . . . . . . . . .25
6.3.1 Display during start-up. . . . . . . . . . . . . . . . . . . . . 26
6.3.2 Display during operation . . . . . . . . . . . . . . . . . . . 27
6.3.3 Setup menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.3.4 Password input . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.3.5 Language selection . . . . . . . . . . . . . . . . . . . . . . . 29
6.3.6 Setting and resetting parameters . . . . . . . . . . . . 29
6.3.7 Setting the mounting position of the solar
panel temperature sensor . . . . . . . . . . . . . . . . . . 29
6.3.8 Manual setting of the pump speed regulation . . . 30
6.3.9 Correction values for measuring points. . . . . . . . 30
Daikin EKSRPS4
Daikin Control and pump unit for solar systems
008.1624644 – 07/2015
Operating and installation instructions
3
2 x Safety
2 Safety
2.1 Observing instructions
This manual is intended for authorised and trained technicians
who have experience in the proper installation and commissioning of solar systems on account of their technical training and
knowledge.
All necessary tasks for the installation, initial start-up, operation
and setting of the system are described in this manual. For detailed information regarding the connected components of your
heating system, please observe the respective documents.
Please read this manual carefully and thoroughly before proceeding with the installation and initial start-up or modification of
the system.
Relevant documents
Documents listed below are part of the technical documentation
of the Daikin solar system and therefore must be observed. The
documents are included in the scope of supply of the individual
components.
– Daikin V21P, V26P and H26P solar high-efficiency flat
solar panels: Installation instructions for on-roof, in-roof
and flat-roof mounting
– Daikin Hot water storage tank (EKHWP or Altherma
EHS(X/H): Operating and installation instructions
When connecting to an external heat generator or storage tank
which is not included in the scope of delivery, the individual associated operating and installation instructions apply.
2.2 Warning signs and explanation of symbols
Meaning of the warnings
Warnings in this manual are classified according into their severity and probability of occurrence.
Special warning signs
Some types of danger are indicated by special warning signs.
Electric power
Danger of explosion
Risk of burning or scalding
Order number
Notes related to Order numbers are identified by the cart symbol
.
Handling instructions
● Instructions on actions are shown as a list. Actions of which
the sequential order must be maintained are numbered.
Results of actions are identified with an arrow.
2.3 Avoid danger
Daikin solar installations are state-of-the-art and are built to meet
all recognised technical requirements. However, improper use
can lead to serious injuries or death, as well as causing material
damage. Install and operate only Daikin solar systems to avoid
danger:
– as stipulated and in perfect condition,
– with an awareness of the safety and hazards involved.
This assumes knowledge and use of the contents of this manual,
the relevant accident prevention regulations and the recognised
safety-related and occupational medical rules.
2.4 Intended use
DANGER!
Draws attention to imminent danger.
Disregarding this warning can lead to serious injury or
death.
WARNING!
Indicates a potentially dangerous situation.
Disregarding this warning can result in serious injury
or death.
CAUTION!
Indicates a situation which may cause possible
damage.
Disregarding this warning can lead to damage to
property and the environment.
This symbol identifies user tips and particularly useful
information, but not warnings or hazards.
The Daikin solar system may only be used for solar-supported
heating of hot water systems. The Daikin solar system must be
installed, connected and operated only according to the instructions in this manual.
Any other use outside the intended use is considered as improper. The operator alone shall bear responsibility for any resulting damage.
Use as intended also involves compliance with maintenance and
inspection conditions. Spare parts must at least satisfy the technical requirements defined by the manufacturer. This is the case,
for example, with original spare parts.
2.5 Instructions for working safely
Working on the roof
● Installation work on the roof may only be carried out by
authorised and trained persons (heating technicians, roofers,
etc.) under observance of the relevant Accident Prevention
Regulations.
● Material and tools must be secured against falling.
● Barriers must be erected to prevent persons from entering the
area below the roof where the work is being carried out.
Before working on the heating system
● All work on the heating system (such as installation,
connection and commissioning) may only be carried out by
authorised and trained heating technicians.
● Switch off the main switch and secure it against unintended
switching on when carrying out any work on the heating
system.
Operating and installation instructions
4
Daikin Control and pump unit for solar systems
Daikin EKSRPS4
008.1624644 – 07/2015
Electrical installation
● Electrical installation must be carried out only by qualified
electrical experts and in compliance with the valid electrotechnical guidelines as well as the regulations of the relevant
energy supply company (EVU).
● For the mains connection, use a separate EN 60335-1
disconnector for all-pole disconnection from the power mains
and a GFCI circuit breaker with a reaction time ≤ 0.2 s.
● Before completing the mains connection, compare the mains
voltage, indicated on the type plate (230 V, 50 Hz) with the
supply voltage.
● Before beginning work on live parts, disconnect them from the
power supply (switch off main switch, remove fuse) and
secure against unintentional restart.
● Equipment covers and service panels must be replaced as
soon as the work is completed.
Instructing the user/owner
● Before you hand over the heating system, explain to the
user/owner how to operate and check the heating system.
● Make a record of the handover by filling out and signing the
installation and instruction forms jointly with the user/owner.
2 x Safety
Daikin EKSRPS4
Daikin Control and pump unit for solar systems
008.1624644 – 07/2015
Operating and installation instructions
5
3 x Product description
3 Product description
3.1 Design and components of the solar system
Fig. 3-1 Standard design of a Daikin solar system (Daikin recommends a double-sided connection)
1 Cold water connection line
2 Domestic water (hot) distribution line
3 Stainless steel corrugated heat exchanger for domestic water
(hot)
4a Stainless steel corrugated heat exchanger for storage tank charg-
ing
4b Stainless steel corrugated heat exchanger for storage tank charg-
ing and heating support
5 Submersion sleeve for storage, return temperature sensors
6 Fill level display
7 Filling and draining cock (KFE BA accessory)
8 Solar R4 controller
9 Solar return line (at the bottom on the solar panel)
10 Solar panel array
11 Solar flow line (at the top on the solar panel)
12 Thermal mixing valve (scalding protection, provided by customer)
13 Convection brake (accessory)
14 Solar flow layering pipe
15 Corrugated stainless steel heat exchanger for heating support
16 Thermal insulation sleeve for corrugated stainless steel heat ex-
changer for heating support
17 Solar return connection
18 Safety overflow connection
Tab. 3-1 Legend for fig. 3-1
A Zone with water for domestic use
B Solar zone
FLS Solar FlowSensor (flow measurement)
PSSolar operating pump
EKSRPS4
Control and pump unit for solar systems
t
Storage temperature sensor
DHW
TKSolar panel temperature sensor
TRSolar return flow temperature sensor
TSSolar storage tank temp. sensor
TVSolar flow temperature sensor
EHS(X/H)B
Solar tank with integrated interior heat pump device
HYC - DB
EKHWP energy storage
Operating and installation instructions
6
Daikin Control and pump unit for solar systems
Daikin EKSRPS4
008.1624644 – 07/2015
3 x Product description
3.2 Brief description
The Daikin solar system is a thermal solar system for supplying
hot water for consumption and solar support.
The Daikin EKSRPS4 Control and pump unit for solar
systems can only be installed and operated as part of a
Daikin Solar System (DrainBack) using the provided
installation material.
The prerequisite for problem-free operation in the
DrainBack system, is that the connection lines are
routed with a constant gradient (at least 2 %), and that
the bottom edges on the solar panels with double-sided
connections are mounted with a constant gradient to
the return connection, or, with same side connection,
are mounted horizontally.
Mode of operation
The V21P, V26P and H26P high-performance solar panels efficiently convert the sun’s radiation into heat. Hereby, the heat
transport media is normal tap water.
As soon as the solar collectors have reached a useful temperature level, the water of the heating jacket in the storage cylinder
(which is not under pressure) is pumped directly through the
collectors. With insufficient collector temperature, the circulation
pump is switched off and the system is drained automatically.
This operating mode has several advantages:
– High operational reliability, as there are no components that
could be damaged or fail (such as expansion vessel, safety
valve, venting valves, etc.).
– Excellent heat transfer and heat storage capacity (system
works without antifreeze agents).
– Minimum maintenance requirements.
– Frost proof.
– Without separate solar heat exchanger.
– No stagnation problems.
Electronic control
The fully electronic Daikin Solar R4 control system ensures optimum utilisation of the solar heat (hot consumption water generation, heating support) as well as the observance of all safety-relevant aspects. All parameters needed for trouble-free operation
have been preset at factory.
3.3 System components
3.3.1 Control and pump unit for solar systems EKSRPS4
Modular design
The system consists of several preassembled modules. Plug-in
technology and a high degree of pre-assembly ensure fast and
simple system installation.
Storage tank
The following storage tanks can be used for the Daikin solar
system:
– Daikin EKHWP (HYC): Thermally insulated, de-pressurised
plastic storage tank (with connection facility for a Daikin airwater heat pump).
– Daikin Altherma EHS(X/H) Solar storage tank with integrated
interior air-water heat pump device.
Construction, operating principle, commissioning, and
operation of other solar components are not described
in this manual. Detailed information about the components can be seen in the operating and installation
instructions of the individual units.
The handling instructions and descriptions in this
manual are valid for all Daikin storage tanks to be used
in conjunction with this solar system, even if only one
type is used for illustrative purposes. In the event of deviations from other storage tanks, a separate note is
provided.
Consists of:
1 Cover
2 Connection piping with circulation pump and solar operating pump
3 Daikin Solar R4-controller with storage tank temperature sensor,
return flow temperature sensor, solar panel temperature sensor
connecting cables, FlowSensor, 230 V mains connecting cable
(3 m)
4 Accessories pocket (6 fixing screws, 2 plastic plugs, 2 locking
screws, plug fitting and gasket)
5 Mounting material (retaining bracket for pump mounting, holding
bar and fixing bracket for controller)
6 Solar documentation
Fig. 3-2 Control and pump unit for solar systems (EKSRPS4)
Daikin EKSRPS4
Daikin Control and pump unit for solar systems
008.1624644 – 07/2015
Operating and installation instructions
7
3 x Product description
3.3.2 Filling and draining cock (KFE BA) for RPS4
Fig. 3-3 KFE cock (optional)
3.3.3 Regulating valve FlowGuard FLG
For setting and display of flow rate of 2 - 16 l/min.
Consists of:
– FlowGuard FLG (a).
– 2x seals (b).
3.3.4 Storage tank extension kit CON SX
For connecting 2 EKHWP storage tanks.
Consists of:
– Return connection line (a).
– Flow distribution line (b).
Fig. 3-5 CON SX (optional)
Fig. 3-4 FlowGuard FLG (optional)
3.3.5 Storage tank extension kit 2 CON SXE
Extension kit for connecting an additional EKHWP storage tank.
Consists of:
– Return connection line (a).
– Flow distribution line (b).
Fig. 3-6 CON SXE (optional)
Operating and installation instructions
8
Daikin Control and pump unit for solar systems
Daikin EKSRPS4
008.1624644 – 07/2015
4 Installation
4 x Installation
4.1 System concepts
Daikin solar systems are usually built according to one of the following system concepts. Information concerning hydraulic
system incorporation with example schematics can be seen in
chapter 8 "Hydraulic system connection".
4.1.1 Parallel connection
Fig. 4-1 Solar panel field with a connection at each end
(recommended)
T
K
Fig. 4-2 Solar panel field with both connections at one end
(max. 3 solar panels)
4.1.2 Serial connection
As an alternative to the parallel mode described in this manual,
and if necessary, a maximum of 3 solar panels can be mounted
one above the other. Solar panels or solar panel fields mounted
one above the other must be connected in series (fig. 4-3).
1 Collector connector
2 Mounting rail
3 Solar panel securing hook
4 Solar panel
5 Return panel connection
6 Flow panel connection
7 Collector sealing cap
8 Roof penetration boxes for inflow/return flow
9 Solar return line
10 Solar flow line
11 Series panel connector
12 Solar panel array (2x 2 panels)
Tab. 4-1 Legend for fig. 4-3
4.2 Installing the control and pump unit
WARNING!
Live parts can cause an electric shock on contact and
cause life-threatening burns and injuries.
● Before beginning work on the boiler switching
panel or the solar controller, disconnect the
devices from the power supply (switch off fuse,
main switch) and secure against unintentional
restart.
● Electrical installations must always be carried out
by qualified electrical technicians in conformity
with the relevant electrical guidelines and the
regulations of the electric utilities company to
prevent hazards from damaged electric wiring.
● Comply with the relevant safety at work regulations.
DANGER!
Leaking gas in the immediate proximity of electrical
components can cause an explosion.
● The Control and pump unit for solar systems
EKSRPS4 and electrical components should not
be installed in locations where there is a danger of
flammable gas escaping.
● Pay attention to minimum distances from walls and
in shafts.
Fig. 4-3 Alternative solar panel arrangement
Daikin EKSRPS4
Daikin Control and pump unit for solar systems
008.1624644 – 07/2015
Operating and installation instructions
9
4 x Installation
4.2.1 Installation pump unit
CAUTION!
Large volumes of water may come out of the solar
storage tank during installation.
● Mount the pump unit before filling the solar storage
tank (depressurised range) with water.
● If the pump unit is to be connected to solar storage
tank that is already in operation, the depressurised
storage area must first be drained.
Fig. 4-4 Work step 1 Fig. 4-5 Work step 2
Fig. 4-6 Work step 3
1x
007.16 054 99
4PW56022-1
MS
Fig. 4-10 Work step 7 Fig. 4-11 Work step 8
Fig. 4-12 Work step 9 Fig. 4-13 Work step 10
10. Prepare feed line
(VA 15 Solar) with sensor
cable and return line
(VA 18 Solar). Cut open
the twin heat insulation in
the middle.
11. Adapt the return line
(VA 18 Solar) accordingly
and route separately after
separating the twin thermal
insulation.
Click
Click
MS
100
710
ø3,5
<15 mm
Fig. 4-7 Work step 4
Fig. 4-8 Work step 5 Fig. 4-9 Work step 6
Fig. 4-14 Work step 11
12. Insert the pre-curved return
line (VA 18 Solar) into the
plug fitting on the pump
outlet pipe.
Fig. 4-15 Work step 12
13. Cut the flow line (VA Solar 15) to length on the storage tank
side and insert into the plug fitting on the solar flow connection
(see chapter 4.3 "Linking several solar storage tanks",
FlowSensor, work step 4).
Operating and installation instructions
10
Daikin Control and pump unit for solar systems
Daikin EKSRPS4
008.1624644 – 07/2015
CAUTION!
In the case of longer pipe runs with only a minimum
gradient, it is possible for water pockets to develop
due to thermal expansion of the plastic pipes between
the mounting points with siphon action:
● Use support troughs (TS).
● Always make sure that pipe runs have a
continuous gradient of at least 2 %.
4.2.2 Installation FlowSensor, FlowGuard (optional)
Note the direction of flow when installing the FlowSensor.
4 x Installation
FlowSensor
The FlowSensor FLS 20 (fig. 4-17) is a measuring device that
simultaneously determines the flow rate in the solar panel and the
flow temperature. The measuring ranges are 0...20 l/min (flow
quantity) and 0...120 °C (inflow temperature). The measured
values are displayed on the Solar R4 control system.
By controlling the speed of the P
Solar R4 automatically adjusts the optimum flow quantity.
1. Insert the seal (b) on the solar flow connection (a) of the hot
water storage tank.
2. Screw the FlowSensor (c) onto the solar flow connection (a)
of the hot water storage tank.
3. Insert the seal (e) and fit the plug fitting (f) to the inlet to the
FlowSensor (c).
4. Shorten the flow line (g) (Ø 15 mm) to the required length and
insert into the plug fitting (f).
5. Lay FlowSensor cable between FlowSensor (c) and Solar R4
control unit.
6. Connect FlowSensor cable to FlowSensor (c) and to the Solar
R4 control system printed circuit board edge at position FLS
(4-pin, see fig. 4-23).
solar circulation pump, the
S
Fig. 4-17 FlowSensor FLS supplied with 3 m cable
FlowGuard
The FlowGuard FLG (fig. 4-19) is also available as an accessory.
It is a regulating valve with integrated flow indicator which can be
used to set the flow rate through the solar panel array.
The display range is 2...16 l/min.
1. Insert the seal in the flow connection (see fig. 4-18).
2. Mount the FlowGuard, and screw it tight.
3. Insert the seal and install the plug fitting into the input to the
FlowGuard.
4. Insert a prepared flow pipe into the plug fitting of the
FlowGuard.
Fig. 4-16 Mounting FlowSensor FLS
Daikin EKSRPS4
Daikin Control and pump unit for solar systems
008.1624644 – 07/2015
Fig. 4-18 Work step 1+2
Fig. 4-19 Accessory FlowGuard FLG
Operating and installation instructions
11
4 x Installation
4.2.3 Installing temperature sensor
CAUTION!
On no account may the storage cylinder temperature
sensor of the boiler controller be inserted more than
75 cm into the sensor well. A sensor that is inserted
too deeply can lead to overheating of the consumption
water section, as well as a "hang-up" of the control unit
during the storage cylinder charging phase.
1. Bend over the contact springs on both sensors (return
temperature sensor, storage tank temperature sensor) and
insert into the sensor tube.
Fig. 4-22 Work step 4
4.2.4 Preparing and fitting the control system Requirements
– For electrical connections and consumable electrical materi-
als (cable, insulation, etc.), follow all valid country-specific
guidelines.
– For every fixed mains connection, use a separate
EN 60335-1 disconnector for all-pole disconnection from the
power mains and a GFCI circuit breaker with a reaction time
≤ 0.2 s.
a Solar return flow temperature sensor
b Solar storage tank temperature sensor
Fig. 4-20 Work step 1
2. Position the return flow temperature sensor in the sensor tube
at approx. 130 cm insertion depth (cable tie).
3. Position the storage cylinder temperature sensor in the
sensor tube at approx. 70 cm insertion depth (cable tie).
Permissible cable types at the terminal strip:
– Single core ≤ 2.5 mm
– Multi-core ≤ 2.5 mm
– Multi-core with wire end sleeves with insulating collar
≤ 1.5 mm
– Multi-core with wire end sleeves without insulating collar
≤ 2.5 mm
2
2
2
2
Fig. 4-21 Work step 2+3
4. Push the sealing plug into the well, and run the cables.
Operating and installation instructions
12
Daikin Control and pump unit for solar systems
Daikin EKSRPS4
008.1624644 – 07/2015
Electrical connection
007.16 108 99_00
NN LL11111113
POWERCONFPWM
T2A
250V
n.b.
P1 F1
4 x Installation
BSK
FLS TRTS TK
Fig. 4-23 Connection assignment
22222224
3
3
BSK Burner inhibit contact
CONF
Programming socket for
Software update
FLS FlowSensor
TS Storage cylinder temper-
ature sensor
TR Return flow temperature
sensor
TK Collector temperature
sensor
PSSolar operating pump
F1 Fuse
Power
Mains supply
1. Fix the cable supplied to the back of the control system using
the edge connectors. The connectors are polarised to prevent
errors. A connecting diagram is provided in the control unit
cover.
Fig. 4-25 Work step 2
3. Connect the solar panel
temperature sensor line
(integrated in the
connection line) to the plug
terminals.
Fig. 4-26 Work step 3
4. Insert the plug at the edge of the board on the controller, at
position TK (2-pin, see fig. 4-23).
Fig. 4-24 Work step 1
2. To ensure reliable tension relief, all cables should be run
through the respective labyrinths.
Daikin EKSRPS4
Daikin Control and pump unit for solar systems
008.1624644 – 07/2015
Fig. 4-27 Basic wiring: FlowSensor, storage tank, return, solar panel
sensor, pumps and mains wiring
Operating and installation instructions
13
4 x Installation
5. Suspend the controller from above in the fixing bracket.
– Make sure that the cable loops (as shown in fig. 4-27 and
fig. 4-28) point downwards.
Fig. 4-28 Work step 5
6. Cabling of the solar operating pump P
:
S
– Connect the pump cable to the solar operating pump P
4.2.5 Fit the covering hood
1. Slide the covering hood in position and align. Slide the
covering hood under the controller housing so that a constant
gap is produced round the controller.
Fig. 4-31 Work step 1
.
2. Screw the covering hood to the controller housing on both
S
sides using countersunk head screws.
Fig. 4-29 Work step 6
7. Lay the cable for the control system along the return line and
fix using cable ties.
Fig. 4-30 Work step 7
Fig. 4-32 Work step 2
3. Fix the covering hood to the storage tank connection bracket
that is located underneath. Carefully screw the self-tapping
fixing screw (pre-installed in the covering hood) over the
depression in the lower section of the housing front and then
insert the covering cap.
Fig. 4-33 Work step 3
Operating and installation instructions
14
Daikin Control and pump unit for solar systems
Daikin EKSRPS4
008.1624644 – 07/2015
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