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
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
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.
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
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
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
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)
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
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).
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
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.
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
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
14
Daikin Control and pump unit for solar systems
Daikin EKSRPS4
008.1624644 – 07/2015
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