INSTALLATION AND
OPERATION MANUAL
Solar kit for air to water heat pump system
EKSOLHTBV1
EKSOLHTBV1
Solar kit for air to water heat pump system
Installation and
operation manual
CONTENTS Page
1. Definitions ..................................................................................1
1.1. Meaning of warnings and symbols.................................................1
1.2. Meaning of used terms................................................................... 2
2. General safety precautions........................................................2
3. Introduction ................................................................................3
3.1. General information........................................................................ 3
3.2. Scope of this manual...................................................................... 3
3.3. Model identification......................................................................... 3
4. Accessories ...............................................................................3
5. Overview of the solar kit.............................................................4
5.1. Main components...........................................................................4
5.2. Safety functions.............................................................................. 4
Domestic hot water tank tank thermal cut out ................................4
Piping thermal cut out .................................................................... 4
6. General system setup and operation.........................................4
7. Installation of the solar kit ..........................................................5
7.1. Selecting an installation location ....................................................5
7.2. Dimensions and service space ...................................................... 5
7.3. Inspecting, handling and unpacking the unit ..................................5
7.4. Installation guidelines.....................................................................5
7.5. Installing the solar kit...................................................................... 5
Procedure....................................................................................... 5
Charging water...............................................................................7
7.6. Field wiring .....................................................................................8
Overview ........................................................................................8
Installing the EKRP1HB in the unit................................................. 8
Connecting the temperature sensors ............................................. 9
Connecting the solar pump station controller, solar pump
station, indoor unit, domestic hot water tank and solar kit.............. 9
8. Installation of solenoid valve kit EKUHT2WB...........................10
8.1. Last steps of mounting the kit inside the unit ...............................10
8.2. Guiding the wiring towards the switch box ................................... 11
8.3. Last step of connecting the wiring................................................ 11
9. Start up ....................................................................................11
9.1. Commissioning the system before initial start up......................... 11
9.2. Checklist for proper functioning.................................................... 11
10. Operating instructions..............................................................12
10.1. Configuring your system............................................................... 12
Use of schedule timers................................................................. 12
Setting of domestic hot water tank temperature........................... 12
Setting of the solar priority parameter .......................................... 13
11. Troubleshooting and servicing .................................................13
11.1. General guidelines .......................................................................13
11.2. General symptoms ....................................................................... 13
11.3. Error codes................................................................................... 14
12. Disposal requirements .............................................................14
13. Technical specifications ...........................................................14
Annex....................................................................................... 15
Decision flow of heating the domestic
water by heat pump or by solar kit................................................15
CAREFULLY READ THESE INSTRUCTIONS BEFORE
INSTALLATION. THEY WILL TELL YOU HOW TO
INSTALL, HOW TO CONFIGURE AND HOW TO USE THE
EKSOLHTB SOLAR KIT PROPERLY.
KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE
REFERENCE.
THE UNIT DESCRIBED IN THIS MANUAL IS DESIGNED
FOR INDOOR INSTALLATION ONLY AND FOR AMBIENT
TEMPERATURES RANGING 0°C~35°C.
1. DEFINITIONS
1.1. Meaning of warnings and symbols
Warnings in this manual are classified according to their severity and
probability of occurrence.
DANGER
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may also
be used to alert against unsafe practices.
NOTICE
Indicates situations that may result in equipment or
property-damage accidents only.
INFORMATION
This symbol identifies useful tips or additional information.
Some types of danger are represented by special symbols:
Electric current.
Danger of burning and scalding.
The English text is the original instruction. Other languages are
translations of the original instructions.
EKSOLHTBV1
Solar kit for air to water heat pump system
4PW67028-1 – 02.2011
Installation and operation manual
1
1.2. Meaning of used terms
Installation manual:
Instruction manual specified for a certain product or application,
explaining how to install, configure and maintain it.
Operation manual:
Instruction manual specified for a certain product or application,
explaining how to operate it.
Maintenance instructions:
Instruction manual specified for a certain product or application,
which explains (if relevant) how to install, configure, operate and/or
maintain the product or application.
Dealer:
Sales distributor for products as per the subject of this manual.
Installer:
Technical skilled person who is qualified to install products as per the
subject of this manual.
User:
Person who is owner of the product and/or operates the product.
Service company:
Qualified company which can perform or coordinate the required
service to the unit.
Applicable legislation:
All international, European, national and local directives, laws,
regulations and/or codes which are relevant and applicable for a
certain product or domain.
Accessories:
Equipment which is delivered with the unit and which needs to be
installed according to instructions in the documentation.
Optional equipment:
Equipment which can optionally be combined to the products as per
the subject of this manual.
Field supply:
Equipment which needs to be installed according to instructions in
this manual, but which are not supplied by Daikin.
2. GENERAL SAFETY PRECAUTIONS
The precautions here, all cover very important topics, so be sure to
follow them carefully.
All activities described in this manual shall be carried out by an
installer and in accordance with the applicable legislation.
Be sure to wear adequate personal protection equipment (protection
gloves, safety glasses, …) when performing installation, maintenance
or service to the unit.
If not sure of installation procedures or operation of the unit, always
contact your local dealer for advice and information.
Improper installation or attachment of equipment or accessories
could result in electric shock, short-circuit, leaks, fire or other damage
to the equipment. Be sure only to use accessories and optional
equipment made by Daikin which are specially designed for use with
the products as of subject in this manual and have them installed by
an installer.
DANGER: ELECTRICAL SHOCK
Switch off all power supply before removing the switch box
service panel or before making any connections or
touching electrical parts.
Do not touch any switch with wet fingers. Touching a switch
with wet fingers can cause electrical shock. Before
touching electrical parts, turn off all applicable power
supply.
To avoid electric shock, be sure to disconnect the power
supply 1 minute or more before servicing the electrical
parts. Even after 1 minute, always measure the voltage at
the terminals of main circuit capacitors or electrical parts
and, before touching, be sure that those voltages are
50 V DC or less.
When service panels are removed, live parts can easily be
touched by accident. Never leave the unit unattended
during installation or servicing when the service panel is
removed.
DANGER: DO NOT TOUCH PIPING AND INTERNAL
PA RT S
Do not touch the refrigerant piping, water piping or internal
parts during and immediately after operation. The piping
and internal parts may be hot or cold depending on the
working condition of the unit.
Your hand may suffer burns or frostbite if you touch the
piping or internal parts. To avoid injury, give the piping and
internal parts time to return to normal temperature or, if
you must touch them, be sure to wear protective gloves.
WARNING
■ Never directly touch any accidental leaking
refrigerant. This could result in severe wounds caused
by frostbite.
■ Do not touch the refrigerant pipes during and
immediately after operation as the refrigerant pipes
may be hot or cold, depending on the condition of the
refrigerant flowing through the refrigerant piping,
compressor, and other refrigerant cycle parts. Your
hands may suffer burns or frostbite if you touch the
refrigerant pipes. To avoid injury, give the pipes time to
return to normal temperature or, if you must touch
them, be sure to wear proper gloves.
CAUTION
Do not rinse the unit. This may cause electric shocks or
fire.
■ This appliance is not intended for use by persons, including
children, with reduced physical, sensory or mental capabilities,
or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance
by a person responsible for their safety.
Children should be supervised to ensure that they do not play
with the appliance.
EKSOLHTBV1
Solar kit for air to water heat pump system
4PW67028-1 – 02.2011
Installation and operation manual
2
3. INTRODUCTION
4. ACCESSORIES
3.1. General information
Thank you for purchasing this EKSOLHTBV1 solar kit.
The solar kit must be installed by a competent person and be
installed in compliance with the instructions in this manual.
The solar kit is to be connected to the EKHV(H/X)* indoor units in
combination with the EKHTS* domestic hot water tanks.
The solar kit will enable you to heat up your domestic water by means
of the sun whenever the sun is available.
To get the most comfort and energy savings out of your system,
make sure to observe the section "10.1. Configuring your system" on
page 12 of this manual.
3.2. Scope of this manual
This installation manual describes the procedures for installing and
operating the EKSOLHTBV1 solar kit.
INFORMATION
Refer to the installation manual of the indoor unit for items
not described in this manual.
The operation of the indoor unit is described in the indoor
unit operation manual.
3.3. Model identification
EK SOL HT B V1
V1 = 1P/230 V/50 Hz
Series
Domestic hot water
Solar kit
European Kit
13 5462
1x 1x1x 1x 1x 1x
71012131189
1x 2x1x 1x
1x
1x 1x
18 19 2014 15 16 17
4x11x
1x 1x 1x
1 Installation manual
2 Addendum for pump station EKSR
3 Wiring diagram sticker
4 Return connection to the 200/260 l domestic hot water tank
heat exchanger with piping thermal cut out (incl. reset
button)
5 Inlet connection from the domestic hot water tank heat
exchanger
6 Plate heat exchanger and pump
7 Domestic hot water tank thermal cut out (incl. reset button)
8 Sensor holder
9 Connector 2-pole
10 Connector 3-pole
11 Grommet
12 T-piece (large)
13 T-piece (small)
14 Wire harness X3 to X2M/21
15 Wire harness Q3L to A1P
16 Wire harness Q3L to X2M/28 and X8Y
17 EKRP1HB solar/remote alarm address card
18 Piping clamp (small)
19 Piping clamp (large)
20 Clamp
1x
2
15x
Installation and operation manual
3
Solar kit for air to water heat pump system
EKSOLHTBV1
4PW67028-1 – 02.2011
5. OVERVIEW OF THE SOLAR KIT
6. GENERAL SYSTEM SETUP AND OPERATION
5.1. Main components
6
5
7
1 Solar kit circulation pump
2 Heat exchanger
3 Inlet connection from solar pump station
4 Return connection to solar pump station
5 Inlet connection from the unit
6 Return connection to the unit
7 Non-return valve
5.2. Safety functions
Domestic hot water tank tank thermal cut out
The solar kit is designed to transfer the heat from the Daikin solar
panels to the heat exchanger of the domestic hot water tank EKHTS*
and is to be installed in the system as shown in the scheme below.
3
4
5
7
3.1
3
486
M
2
1
3.4
12
1 Solar panels (EKS*26)
2 Solar pump station (EKSRDS1A)
3 Solar pump station controller with temperature sensors
(EKSR3PA)
3.1 Domestic hot water tank temperature sensor, T
3.2 Return temperature sensor to solar panels, T
3.3 Supply temperature sensor with flow meter from solar
panels (option EKSFLP12A)
3.4 Solar panel temperature sensor, T
4 Solar kit (EKSOL*)
5 Domestic hot water temperature sensor of the unit
6 Solenoid 2-way valve (only for UK)
Obligatory for compliance to UK building regulation G3.
Refer to the EKUHT2WB kit.
7 Tank thermal cut out device
8 Piping thermal cut out device
Heating system.
Refer to the unit installation manual.
Example of unit
3.2
3.3
S
R
K
The solar kit contains a thermal cut out safety device to be mounted
on the domestic hot water tank casing. (refer to "7.6. Field wiring" on
page 8).
When the thermal cut out safety of the domestic hot water trips, the
power supply to the pump of the solar kit is interrupted (and the
solenoid 2-way valve (EKUHT2WB for UK-only) is closed) so that no
more solar heat can be transferred to the domestic hot water tank.
Error code AA will apear on the remote controller, refer to "11.3. Error
codes" on page 14.
Piping thermal cut out
Mounted on the piping of the solar kit, a thermal cut out safety
protects the piping of the unit and domestic hot water tank against
overheating.
When the thermal cut out safety of the piping trips, the power supply
to the pump of the solar kit is interrupted (and the solenoid 2-way
valve (EKUHT2WB for UK-only) is closed) so that no more solar heat
can be transferred to the domestic hot water tank. There will apear no
error code on the remote controller. Reset by pressing the reset
button.
The solar panels (1) catch the heat of the sun. When the temperature
of the glycol solution in the solar panel has become higher than the
water temperature in the domestic hot water tank, the pump of the
solar pump station (2) and the pump of the solar kit (4) start to
operate as to transfer the heat to the heat exchanger of the domestic
hot water tank, unless priority is given to the heat pump. Refer to
"10. Operating instructions" on page 12 (subsection: Configuring
your system).
EKSOLHTBV1
Solar kit for air to water heat pump system
4PW67028-1 – 02.2011
Installation and operation manual
4
7. INSTALLATION OF THE SOLAR KIT
7.1. Selecting an installation location
■ The solar kit is to be installed in a frost free indoor space,
directly connected to the domestic hot water tank.
■ Make sure the service space is available as indicated in below
drawing.
■ The space around the unit has to allow sufficient air circulation.
■ It shall be made sure that in the case of a leak, leaking water will
not cause any damage or unsafe situations.
■ The equipment is not intended for use in a potentially explosive
atmosphere.
■ Do not install or operate the unit in rooms mentioned below:
- Where corrosive gas like sulphurous gas exists: copper
tubing and brazed spots may corrode.
- Where volatile flammable gas like thinner or gasoline is used.
- Where machines generating electromagnetic waves exist:
the control system may malfunction.
- Where the air contains high levels of salt such as air near the
ocean and where voltage fluctuates a lot (e.g. in factories).
This applies also to vehicles or vessels.
7.2. Dimensions and service space
Service space dimensions below relate to requirements for
installation of the solar kit only.
For service space dimensions of the domestic hot water tank, refer to
the installation manuals of the domestic hot water tank and of the
indoor unit.
L R
>250
L Left installation
R Right installation
1 Inlet connection from solar pump station
2 Return connection to solar pump station
30
50
>300
1
2
465
527
7.3. Inspecting, handling and unpacking the unit
■ The EKSOLHTBV1 kit is packed in a cardboard box.
■ At delivery, the kit must be checked and any damage must be
reported immediately to the carrier claims agent.
■ Check if all accessories (see "4. Accessories" on page 3) are
enclosed.
■ Bring the kit as close as possible to its final installation position
in its original package in order to prevent damage during
transport.
CAUTION
Safely dispose of packing materials.
WARNING
Tear apart and throw away plastic packaging bags so that
children will not play with them. Children playing with
plastic bags face danger of death by suffocation.
7.4. Installation guidelines
■ Make sure that all the piping to the solar kit is insulated.
■ Make sure that all the piping to the solar kit is sufficiently
supported so that it will not cause any stress on the solar kit.
■ Make sure the piping is protected against dirt during installation.
Dirt in the piping might clog the heat exchanger of the solar
panel and reduce its performance.
7.5. Installing the solar kit
■ At delivery, the unit should be checked and any damage should
be reported immediately to the carrier claims agent.
■ Check if all unit’s accessories are enclosed. Refer to
"4. Accessories" on page 3.
■ Bring the unit as close as possible to its final installation position
in its original package in order to prevent damage during
transport.
Procedure
Follow the steps as shown in the installation drawings below.
1 Opening of the unit, mounting the wiring diagram sticker on the
front decoration panel and removing the switch box.
Installation and operation manual
5
2x
1
4x
3 4
Solar kit for air to water heat pump system
2
EKSOLHTBV1
4PW67028-1 – 02.2011
2 Remove the knock out holes and mount the grommets.
INFORMATION
For installation with EKHTSU domestic hot water tank, do
not perform next step as explained below, refer to chapter
"8. Installation of solenoid valve kit EKUHT2WB" on
page 10 instead.
1
A
1
5
2x
6 7
3 Mount the kit inside the unit.
A B
8
2x
1
10
CAUTION
C
4 Opening the domestic hot water tank.
Do not switch inlet and outlet connections.
CAUTION
Ensure that the water piping connected to the solar kit
coming from the solar panel and the unit are sufficiently
supported and do not cause any stress on the solar kit.
9
1
2x
2
C
11 12
B
EKSOLHTBV1
Solar kit for air to water heat pump system
4PW67028-1 – 02.2011
Installation and operation manual
6
5 Mounting the thermal cut out.
2x
(B)
WARNING
Ensure that both the thermal cut out and the domestic hot
water tank sensor make good contact with the tank body.
If no good contact is established, this can cause
overheating of the domestic hot water tank.
Charging water
13
14
CAUTION
Do not overtighten the nuts.
(A)
(A)
(A)
(A)
2x
(C)
Charge the water on the unit and the tank (refer to the installation
manuals of the unit and the domestic hot water tank).
Charge the solar panel circuit with a glycol solution.
CAUTION: Use of glycol
■ Observe the instructions as given by your solar panel
supplier. Make sure to use non-toxic glycol.
■ For installations with a domestic hot water tank, the use
of propylene glycol, including necessary inhibitors, is
only allowed if classified as Category 3 according to
EN1717 or equivalent based on national regulations.
17
Installation and operation manual
7
1615
(B)
(C)
Solar kit for air to water heat pump system
EKSOLHTBV1
4PW67028-1 – 02.2011
7.6. Field wiring
X2A
A1P
X33A
A4P
Installing the EKRP1HB in the unit
CAUTION
■ Switch off the power supply before making any
connections.
■ All field wiring and components must be installed by a
licensed electrician and must comply with relevant
European and national regulations.
■ The field wiring must be carried out in accordance
with the wiring diagram and the instructions given
below.
Overview
The illustration below gives an overview of the required field wiring
between several parts of the installation. Refer also the wiring
diagram, the installation manual of the unit, the domestic hot water
tank and the solar pump station.
B
2
4
D
1
C
G
3E
4
D
1
C
A, B Refer to the unit installation manual
Item Description
1 Solar panel sensor cable 2 —
2 Domestic hot water temperature
sensor of the solar pump station
3 Solar return temperature sensor 2 —
4 Operating signal cable from solar
pump station controller to unit
5 Domestic hot water tank thermal cut
out (only for stand alone domestic hot
water tank with EKFMAHTB kit
installed)
(a) Refer to wiring diagram of the unit (FU2)
G
3E
C Solar panel
D Solar pump station controller (EKSR3PA)
E Solar pump station (EKSRDS1A)
F Solar kit
G Only for EKHTSU: solenoid 2-way valve
M
F
A
B2
M
F
A
5
Required
number of
conductors
2—
2—
45 A
Maximum
running
current
(a)
Install the PCB delivered with the solar kit in the unit.
Refer to "4. Accessories" on page 3, part 8.
1 Open the EKRP1HB box.
3
1
2
3
2 1
4
1 Wrapped PCB (solar/remote alarm address card)
2 Installation manual
3 Accessories bag
4 EKRP1HB box
2 Ta ke out the PCB and unwrap it.
3 Open the accessories bag and take the connector labelled X1A.
4 Place this connector on the EKRP1HB PCB (on the connector
X1A/CN1).
X2A/CN2
X1A/CN1
Y1 Y2 Y3 Y4
YC
5 Mount the plastic raisers from the accessories bag on the switch
box backplate.
6 Mount the EKRP1HB PCB on the plastic raisers.
Mount the control cable (from the accessories bag) between
A1P: X33A (the main PCB) and A4P: X2A/CN2 (the EKRP1HB
PCB).
A4P
X33A
1x
EKSOLHTBV1
Solar kit for air to water heat pump system
4PW67028-1 – 02.2011
X2A
A1P
Installation and operation manual
8
Connecting the temperature sensors
P2
P1
PS
HV
LV
M2P
Q2L
X2M/21
A4P/X3
A4P/X4
M2P
Q2L
X7Y
X7Y
X8Y
1 Mount the solar panel sensor of the solar pump station in the
solar panel according to the instructions of the solar pump
station and solar panel.
2 Mounting the domestic hot water temperature sensor of the
solar pump station must be performed according to instructions
of the solar pump station.
INFORMATION
For installation with EKHTSU domestic hot water tank, do
not perform the next step as explained below, refer to
"8. Installation of solenoid valve kit EKUHT2WB" on
page 10 instead.
2 Connecting the piping thermal cut out
A
NOTICE
The distance between the thermistor cables and the
power supply cable must always be at least 5 cm to
prevent electromagnetic interference on the
thermistor cables.
B
1x
Connecting the solar pump station controller, solar pump
station, indoor unit, domestic hot water tank and solar kit
CAUTION
Make sure no wiring comes in contact with piping.
Otherwise damage to the wiring will occur because some
piping does become very hot.
2x
1x
2
3 Making connection in the switch box
2x
Q2L
M2P
Refer to the figures below.
1 Connecting the domestic hot water thermal cut out
2
1
2x
P2
P1
1x
PS
HV
1
LV
PS Pow er supply
HV High voltage
LV Low voltage
X2M/21
A4P/X3
3
M2P
YLW/GRN
BLU
X7Y
1
3
2
BRN
A4P/X4
4 5
Use wire harness X3 to
X2M/21, refer to number 14
of the "Accessories" on
page 3.
Q2L
1
2
X8Y
1
X7Y
3
2
Installation and operation manual
9
Solar kit for air to water heat pump system
EKSOLHTBV1
4PW67028-1 – 02.2011
INFORMATION
P2/2
P1/1
X8Y
X2M/28
A1P/X3A
X3B
X3A
Q2L
Y1S
Only for installations with stand alone domestic hot water
tank.
Wire harness Q3L to A1P and wire harness Q3L to X2M/
28 and X8Y have to be extended to bridge the distance
between the domestic hot water tank and hydrobox.
P1/1
P2/2
X8Y
X2M/28
1
2
A
B
X3A
8. INSTALLATION OF SOLENOID VALVE KIT EKUHT2WB
8.1. Last steps of mounting the kit inside the unit
EKUHT2WBEKSOLHTBV1
1
1
A1P/X3A
X3B
6
Use wire harness Q3L to A1P, refer to number 15 of the
"Accessories" on page 3.
Use wire harness Q3L to X2M/28 and X8Y, refer to number 16 of
the "Accessories" on page 3.
INFORMATION
For installation with EKHTSU domestic hot water tank, do
perform the next step as explained in "8. Installation of
solenoid valve kit EKUHT2WB" on page 10.
4 Connecting solar pump station controller
1 connect solar pump station controller to pump station,
2 connect solar pump station controller to indoor unit,
INFORMATION
Refer to the wiring diagram sticker on the inside of the front
decoration panel.
EKHV*BBEKSR3PA
12
BSK
3
X3 X4 YC Y3
A4P
A
Q2L
Y1S
1
1
2
CAUTION
Do not switch inlet and outlet connections.
CAUTION
Ensure that the water piping connected to the solar kit
coming from the solar panel and the unit are sufficiently
supported and do not cause any stress on the solar kit.
Return to "4 Opening the domestic hot water tank." on page 6 to
perform the next steps of the installation.
EKSOLHTBV1
Solar kit for air to water heat pump system
4PW67028-1 – 02.2011
13a
21 28 29
X2M
Installation and operation manual
10
8.2. Guiding the wiring towards the switch box
M2P
Q2L
Y1S
A4P/X3
Y1S
X7Y
Y1S
M2P
Q2L
2x
1x
2x
Return to "3 Making connection in the switch box" on page 9 to
perform the next steps of the installation.
8.3. Last step of connecting the wiring
Y1S
9. START UP
9.1. Commissioning the system before initial start up
Besides the checks before initial start up of the unit (refer to the
installation manual of the unit) you must check the following items on
the solar kit installation before switching on the circuit breaker:
■ The domestic hot water tank is filled with water. Refer to the
installation manual of the domestic hot water tank.
■ The circuit connected to the solar kit is filled with water. Refer to
the installation manual of the unit.
■ The solar collector circuit is filled with glycol. Refer to the
installation manual of the solar circuit.
■ Make sure the solar kit is properly fixed inside the indoor unit
and that there are no leaks.
■ Field wiring and earthing
Make sure the pump of the solar kit is connected to the thermal
protectors as shown in the wiring diagram and the pump earth
wires have been connected properly. The earth terminals should
be tightened.
■ Ensure that the auxiliary contact of the solar pump station is
connected to the unit.
■ Mounting of sensors
Make sure the solar panel temperature sensor and the domestic
hot water temperature sensor of the solar pump station are
properly mounted.
■ Ver ify that following settings are made on the solar pump station:
■ Maximum solar panel temperature: ≤110°C
■ Maximum tank temperature: 80°C
■ Minimum temperature difference between domestic hot water
tank and solar panel before starting pump operation: ≥15°C
BLU
YLW/GRN
BRN
1
3
X7Y
2
A4P/X3
2
Return to "4 Connecting solar pump station controller" on
page 10 to perform the next steps of the installation.
9.2. Checklist for proper functioning
Following items should be checked to assure proper functioning:
■ When the temperature of the solar panel becomes 15°C higher
than the domestic hot water tank temperature, the pump of the
solar pump station and the pump of the solar kit will start
operation.
dTON=(TK–TS)=15°C
■ When the temperature of the solar panel becomes less than 4°C
higher than the return flow temperature (T
solar pump station and the pump of the solar kit will stop
operation.
dT
(1)
OFF=TK–TR
≤4°C
), the pump of the
R
Installation and operation manual
11
(1) Unless the domestic water heating mode is enabled, the solar priority
parameter = 1 and the heat pump is heating the domestic water tank at
that moment.
Refer to "10.1. Configuring your system" on page 12 for more information.
Solar kit for air to water heat pump system
EKSOLHTBV1
4PW67028-1 – 02.2011
10. OPERATING INSTRUCTIONS
10.1. Configuring your system
In order to guarantee maximum energy savings combined with
maximum comfort, it is important to configure your system in a proper
way.
For this reason, it is strongly recommended to do the following:
Use of schedule timers
■ Scheduled domestic hot water storage must always start
after sunset, this to allow the solar to get the maximum heat
from the sun. During a sunny day, the solar will heat the
domestic water tank completely and the scheduled storage
will not be performed.
■ In case that only scheduled storage is unsufficient and a
reheat during the day is required:
■ Check the orientation of your solar panel, and find out during
what time of the day the intensity of the sun on it is expected to
be strong and weak. For example, a solar panel oriented to the
east will receive strong intensity during the morning, weak
intensity during the afternoon.
■ Check your usual pattern of peak domestic hot water
consumption. E.g. showering during the morning from 7 to 9
a.m. and again in the evening from 5 p.m. onwards.
■ Check the manual of your indoor unit how to set domestic hot
water storage and reheat by the heat pump.
For a system with solar, special care is to be taken to ensure
maximum performance of the solar.
- Scheduled reheat
Schedule the reheat after midday. In case of a sunny day, the
solar will already have heated up the domestic water tank,
the reheat by heat pump will not be performed.
- Continuous reheat
Continuous reheat is only recommended in case of
exceptionally high domestic hot water demand. The heat
pump will heat up the domestic water tank whenever the
reheat set point of the domestic hot water tank is reached
(default = 35°C). Especially during colder/cloudy days the
solar will not be used optimally because a large part is
already done by the heat pump.
Example
Your domestic hot water consumption pattern is from 7 a.m. to 9 a.m. in the morning and from 5 p.m. till 11 p.m. in the evening.
Since the solar panel is oriented towards the south-east, the radiation can be intensive on the solar panel from 8 a.m to 6 p.m.
Domestic hot water
consumption pattern
Expected
Not expected
Solar radiation on the
solar panel
Recommended setting of schedule timers
Domestic water heating
Strong
Weak
Enable
Disable
Hour
0123456789101112131415161718192021222324
Setting of domestic hot water tank temperature
The domestic hot water tank has 2 temperature sensors.
The first temperature sensor is the thermostat sensor of your unit.
This temperature can be set on your unit (refer to the operation
manual of the unit). It is advised to set this temperature as low as
possible. Start with a low temperature, e.g. 48°C. If with this
temperature you face shortage of warm water during normal tapping
patterns, increase gradually until you find the temperature of warm
water that covers your daily demand.
NOTICE
Refer to the operation manual of the unit to change the
domestic hot water temperature setting.
The second temperature sensor is the thermostat sensor of the solar
pump station. This temperature can be set on the solar pump station.
Put this temperature as high as possible but not higher than the listed
temperatures in function of domestic hot water tanks installed, as
otherwise the thermal protection in the tank might trip = 80°C.
NOTICE
For optimal solar efficiency and system operation it is
advised that domestic hot water temperature setting on the
unit controller is lower than the temperature setting on the
solar pump station controller.
With above settings, the heating of the water by heat pump heater
will be limited to the minimum required, and solar heat will be stocked
in the domestic hot water tank to the maximum.
EKSOLHTBV1
Solar kit for air to water heat pump system
4PW67028-1 – 02.2011
Installation and operation manual
12
Setting of the solar priority parameter
11. TROUBLESHOOTING AND SERVICING
Simultaneous water heating by the sun and water heating by the heat
pump is not possible.
By default, heating of the tank by the heat pump has priority over
heating by the sun.
This means that, whenever there is a request of the domestic hot
water thermostat and domestic water heating is enabled (by the
schedule timer or domestic water heating ON/OFF button, refer to the
operation manual of the unit), heating will be done by the heat pump.
In case solar heating is busy, solar heating will be stopped.
This is to avoid shortage of domestic hot water in case the solar
radiation is very weak, or solar radiation only became high shortly
before domestic hot water demand is expected (e.g. on a cloudy
day).
This default setting can be changed, so that at all times, when solar
heat becomes available, domestic water heating by the heat pump
will be (if busy) interrupted and taken over by the sun.
In order to change this, put the field parameter [C-00] to 0. Refer to
the installation manual of the unit, paragraph "Field settings" to find
out how to access and change field parameters. [C-00] put to 0
means solar priority, [C-01] put to 1 means heat pump priority.
NOTICE
Be aware that setting this parameter to 0 might cause
insufficient warm water at the time of domestic hot water
demand during days with weak solar intensity.
If you are not sure about the availability of hot water, check
the domestic hot water temperature on the controller (see
operation manual of the unit) and if too low, push the
'powerful' button. This will trigger domestic water heating
by the heat pump immediately.
INFORMATION
For a detailed decision flow on domestic water heating by
solar kit or by heat pump, refer to the annexes "Decision
flow of heating the domestic water by heat pump or by
solar kit" on page 15.
This section provides useful information for diagnosing and
correcting certain troubles which may occur with the unit.
11.1. General guidelines
Before starting the troubleshooting procedure, carry out a thorough
visual inspection of the unit and look for obvious defects such as
loose connections or defective wiring.
Before contacting your local Daikin dealer, read this chapter carefully,
it will save you time and money.
WARNING
When carrying out an inspection on the switch box of the
unit, always make sure the main switch of the unit is
switched off.
When a safety device was activated, stop the unit and find out why
the safety device was activated before resetting it. Under no
circumstances safety devices may be bridged or changed to a value
other than the factory setting. If the cause of the problem cannot be
found, call your local dealer.
11.2. General symptoms
Symptom 1: The pump of the solar pump station starts
operation, but the pump of the solar kit is not working.
POSSIBLE CAUSE CORRECTIVE ACTION
1 The tank has reached its
maximum allowed
temperature (see the
temperature reading on
the unit display)
2 The auxiliary contact
from the solar pump
station to the unit is not
properly wired
3 The pump of the solar kit
is not properly wired to
the unit
4 The priority for domestic
water heating is given to
the heat pump
5 The thermal cut out of the
tank has operated
6 The thermal cut out of the
piping has operated
Refer to "Domestic hot water tank tank
thermal cut out" on page 4.
Check the wiring.
Check the wiring.
Refer to "Setting of the solar priority
parameter" on page 13.
Refer to error code AA in "11.3. Error
codes" on page 14.
Reset protection on the piping
Installation and operation manual
13
Symptom 2: There is a lot of sun intensity but the solar pump
station and solar kit pumps do not start.
POSSIBLE CAUSE CORRECTIVE ACTION
1 The maximum
temperature of the
domestic hot water tank
is reached
2 The outdoor unit is
heating up the domestic
water tank, since the
priority for domestic
water heating is given to
the heat pump
Check the domestic hot water temperature
on the controller of the unit (refer to the
operation manual of the unit) and check the
maximum temperature setting on your solar
pump station.
Refer to "Setting of the solar priority
parameter" on page 13.
Symptom 3: Only for EKHTSU
The pump of the solar pump station starts operation, but the
pump of the solar kit is not working.
POSSIBLE CAUSE CORRECTIVE ACTION
1 The 2-way valve remains
closed.
Check the wiring.
Refer to the wiring diagram on the inside of
the front decoration panel.
Solar kit for air to water heat pump system
EKSOLHTBV1
4PW67028-1 – 02.2011
11.3. Error codes
When a safety device is activated, the user interface LED will be
flashing, and an error code will be displayed.
Following error codes might be related to a malfunction of your solar
system. First, check also the corrective actions as mentioned in the
installation manual.
Reset the safety by turning the unit OFF and back ON.
Instruction to turn the unit OFF
User interface mode
(heating/cooling =)
ON ON 1 time 1 time
ON OFF 1 time —
OFF ON —1 time
OFF OFF ——
In case this procedure for resetting the safety is not successful,
contact your local dealer.
Error
code
AA Domestic hot water tank
Failure cause Corrective action
thermal protector is open
Backup heater thermal
protector is open
Check the reset button of
the thermal protector.
If both the thermal
protector and the
controller are reset, but
the AA error code
persists, the backup
heater thermal fuse has
blown.
Domestic water
heating mode (w)
The maximum allowed temperature
setting on the solar pump station is set
too high. (should be set below 80°C.
Reset thermal cut out on the domestic
hot water tank.
Reset the thermal protector by pressing
the reset button (refer to "4. Accessories"
on page 3 for location of the reset button)
Contact your local dealer.
Push the
y button
Push the
v button
12. DISPOSAL REQUIREMENTS
Dismantling of the unit, treatment of the refrigerant, of oil and of other
parts must be done in accordance with relevant local and national
legislation.
Your product is marked with this symbol. This means
that electrical and electronic products shall not be
mixed with unsorted household waste.
Do not try to dismantle the system yourself: the dismantling of the
system, treatment of the refrigerant, of oil and other parts must be
done by a qualified installer in accordance with relevant local and
national legislation.
Units must be treated at a specialized treatment facility for re-use,
recycling and recovery. By ensuring this product is disposed off
correctly, you will help to prevent potential negative consequences for
the environment and human health. Please contact the installer or
local authority for more information.
13. TECHNICAL SPECIFICATIONS
• Maximum operating pressure of the
connections to and from the solar pump station
• Maximum operating pressure of the
connections to and from the unit and
connections to and from the domestic hot water
tank heat exchanger
• Minimum/maximum ambient temperature 1/35°C
• Minimum/maximum fluid temperature 1/110°C
• Heat transfer liquid (solar side) propylene glycol
6 bar
4 bar
EKSOLHTBV1
Solar kit for air to water heat pump system
4PW67028-1 – 02.2011
Installation and operation manual
14
ANNEX
Decision flow of heating the domestic water by heat pump or by solar kit
DHW T SPS >
No
maximum
domestic hot water
tank temperature
DHW
heating by
solar kit
No
DHW ≤ heat
pump ON
temperature
DHW heating
No
enabled (by
schedule timer
or domestic
water heating
button)
Ye s
Tank on
maximum
allowed
temperature: no
more heating
allowed
Setting = 1
(no solar priority)
Ye s
Solar energy
available (Solar
panel T > DHW T
SPS +15°C)
Ye s N o
DHW
heating by
heat pump
Ye s
Solar priority
parameter
No Yes
DHW T U ≤
heat pump ON
temperature
Ye s
No
DHW heating enabled
(by schedule timer or
domestic water heating
button)
DHW heating
only possible
backup heater
Setting = 0
(solar priority)
Solar energy
available
(Solar panel T
> DHW T SPS
+15°C)
No
DHW T SPS >
maximum
domestic hot
water tank
temperature
Ye s
DHW heating by
heat pump
No
DHW T U ≤ heat
pump ON
temperature
Ye s
DHW heating
by solar kit
No
DHW heating
enabled (by
schedule timer or
domestic water
heating button)
Tank on maximum
allowed temperature:
no more heating
allowed
No
Ye s
Ye s
DHW heating
by heat pump
DHW heating only
possible by backup
heater
DHW Domestic Hot Water
DHW T SPS Domestic Hot Water Temperature by the Solar Pump Station temperature sensor
DHW T U Domestic Hot Water Temperature by the Unit temperature sensor
Installation and operation manual
15
Solar kit for air to water heat pump system
EKSOLHTBV1
4PW67028-1 – 02.2011
4PW67028-1 02.2011
Copyright 2011 Daikin
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