READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLATION. KEEP THIS MANUAL IN A HANDY
PLACE FOR FUTURE REFERENCE.
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 MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.
ALL ACTIVITIES DESCRIBED IN THIS MANUAL SHALL
BE CARRIED OUT BY A LICENSED TECHNICIAN.
BE SURE TO WEAR ADEQUATE PERSONAL PROTECTION EQUIPMENT (PROTECTION GLOVES, SAFETY
GLASSES, ...) WHEN PERFORMING INSTALLATION,
MAINTENANCE OR SERVICE TO THE UNIT.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DAIKIN DEALER FOR
ADVICE AND INFORMATION.
THE UNIT DESCRIBED IN THIS MANUAL IS DESIGNED
FOR OUTDOOR INSTALLATION.
The English text is the original instruction. Other languages are
translations of the original instructions.
INTRODUCTION
General information
These units are used for both heating and cooling applications. The
units can be combined with Daikin fan coil units, floor heating
applications, low temperature radiators, domestic hot water tank
(option) and solar kit (option).
A remote controller is standard supplied with the unit to control your
installation.
Heating/cooling units and heating only units
The monoblock unit range consists of two main versions: a
heating/cooling (EB) version and a heating only (ED) version.
Installation manual
1
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
Both versions are delivered with an integrated backup heater for
additional heating capacity during cold outdoor temperatures. The
backup heater also serves as a backup in case of malfunctioning of
the unit and for freeze protection of the outside water piping during
winter time. The backup heater factory set capacity is 6 kW, however,
depending on the installation, the installer can limit the backup heater
capacity to 3 kW/2 kW. The backup heater capacity decision is a
mode based on the equilibrium temperature, see scheme below.
P
H
3
1
2
4
1Heat pump capacity
2Required heating capacity (site dependent)
3Additional heating capacity provided by the backup heater
4Equilibrium temperature (can be set through the user interface,
refer to "Field settings" on page 28)
T
Ambient (outdoor) temperature
A
P
Heating capacity
H
T
A
■Domestic hot water tank (option)
An optional EKHW* domestic hot water tank with integrated
3 kW electrical booster heater can be connected to the indoor
unit. The domestic hot water tank is available in three sizes: 150,
200 and 300 litre. Refer to the domestic hot water tank
installation manual for further details.
■Solar kit for domestic hot water tank (option)
For information concerning the EKSOLHW solar kit, refer to the
installation manual of that kit.
■Digital I/O PCB kit (option)
An optional EKRP1HB digital I/O PCB can be connected to the
indoor unit and allows:
■ remote alarm output
■ heating/cooling ON/OFF output
■ bivalent operation (permission signal for the auxiliary boiler)
Refer to the operation manual of the indoor unit and to the
installation manual of the digital I/O PCB for more information.
Refer to the wiring diagram or connection diagram for
connecting this PCB to the unit.
■Bottom plate heater EKBPHTH16A (option)
■Remote thermostat kit (option)
An optional room thermostat EKRTW, EKRTWA, or EKRTR can
be connected to the indoor unit. Refer to the installation manual
of the room thermostat for more information..
To obtain more information concerning these option kits, please refer
to dedicated installation manuals of the kits.
Operation range
Heating modeCooling mode
A
°C DB
35
0
–15
–20
–25
AOutdoor temperature
BLeaving water temperature
No heat pump operation, back up heater only (V3 and W1 models)
No heat pump operation, back up heater only (for V3 models only)
Operation possible, but no guarantee of capacity (for W1 models only)
(*)- E(D/B)L* units include special equipment (insulation, heater
sheet, ...) to ensure good operation in areas where low ambient
temperatures can occur together with high humidity conditions. In
such conditions the E(D/B)H* units may experience problems with
severe ice build-up on the air-cooled coil. In case such conditions
are expected, the E(D/B)L* units must be installed instead.
- Both E(D/B)L* and E(D/B)H* units have a freeze prevention
function using the pump and backup heater to keep the water
system safe from freezing in all conditions. In case accidental or
intentional power shutdown is likely to happen, we recommend to
use glycol.
(**) Only for E(D/B)L* units
(*)
(**)
°C51525 40 55
A
°C DB
46
10
B
°C522
B
Connection to a benefit kWh rate power supply
This equipment allows for connection to benefit kWh rate power
supply delivery systems. Full control of the unit will remain possible
only in case the benefit kWh rate power supply is of the type that
power supply is not interrupted. Refer to "Connection to a benefit
kWh rate power supply" on page 23 for more details.
Scope of this manual
This installation manual describes the procedures for installing and
connecting all EDH, EBH, EDL and EBL outdoor unit models.
H = Low water temperature - ambient zone 3
L = Low water temperature - ambient zone 2
ED = Monoblock outdoor heating only
EB = Monoblock outdoor heat pump
(a) For exact values, refer to "Technical specifications" on page 43.
(a)
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
Installation manual
2
ACCESSORIES
Accessories supplied with the unit
12 34
1x1x2x1x
1Installation manual
2Operation manual
3Wiring diagram sticker (inside unit cover doors 1 and 2)
4User interface kit
(digital remote controller, 4 fixing screws and 2 plugs)
SAFETYCONSIDERATIONS
The precautions listed here are divided into the following four types.
They all cover very important topics, so be sure to follow them
carefully.
Meanings of DANGER, WARNING, CAUTION and NOTE symbols.
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.
NOTE
Indicates situations that may result in equipment or
property-damage accidents only.
Danger
■Before touching electric terminal parts, turn off power switch.
■When service panels are removed, live parts can be easily
touched by accident.
Never leave the unit unattended during installation or servicing
when the service panel is removed.
■Do not touch water pipes during and immediately after operation
as the pipes may be hot. Your hand may suffer burns. To avoid
injury, give the piping time to return to normal temperature or be
sure to wear proper gloves.
■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.
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.
■Safely dispose of packing materials. Packing materials, such as
nails and other metal or wooden parts, may cause stabs or other
injuries.
■
Ask your dealer or qualified personnel to carry out installation work
Do not install the machine by yourself.
Improper installation may result in water leakage, electric shocks
or fire.
■Perform installation work in accordance with this installation
manual.
Improper installation may lead to water leakage, electric shocks
or fire.
■Be sure to use only the specified accessories and parts for
installation work.
Failure to use the specified parts may result in water leakage,
electric shocks, fire, or the unit falling.
■Install the unit on a foundation that can withstand its weight.
■Insufficient strength may result in the fall of equipment and
causing injury.
■Carry out the specified installation work in consideration of
strong winds, hurricanes, or earthquakes.
Improper installation work may result in accidents due to fall of
equipment.
■Make certain that all electrical work is carried out by qualified
personnel according to the local laws and regulations and this
installation manual, using a separate circuit.
Insufficient capacity of the power supply circuit or improper
electrical construction may lead to electric shocks or fire.
■Be sure to install a earth leak detector according to local laws
and regulations.
Failure to install a earth leak detector may cause electric shocks
and fire.
■Make sure that all wiring is secure, using the specified wires and
ensuring that external forces do not act on the terminal
connections or wires.
Incomplete connection or fixing may cause a fire.
■When wiring the power supply, form the wires so that the
frontside panel can be securely fastened.
If the frontside panel is not in place, overheat of the terminals,
electric shocks or a fire may be caused.
■After completing the installation work, check to make sure that
there is no leakage of refrigerant gas.
■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.
■Do not touch the internal parts (pump, backup heater, etc.)
during and immediately after operation.
Your hands may suffer burns if you touch the internal parts. To
avoid injury, give the internal parts time to return to normal
temperature or, if you must touch them, be sure to wear proper
gloves.
.
Installation manual
3
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
Caution
■For use of units in applications with temperature alarm settings it
is advised to foresee a delay of 10 minutes for signalling the
alarm in case the alarm temperature is exceeded. The unit may
stop for several minutes during normal operation for "defrosting
of the unit" or when in "thermostat-stop" operation.
■Earth the unit.
Earth resistance should be according to local laws and
regulations
Do not connect the earth wire to gas or water pipes,
lightning conductor or telephone earth wire.
Incomplete earthing may cause electric shocks.
■ Gas pipe.
Ignition or explosion may occur if the gas leaks.
■ Water pipe.
Hard vinyl tubes are not effective earths.
■ Lightning conductor or telephone earth wire.
Electric potential may rise abnormally if struck by a lightning
bolt.
■Install the power wire at least 1 meter away from televisions or
radios to prevent image interference or noise.
(Depending on the radio waves, a distance of 1 meter may not
be sufficient to eliminate the noise.)
■Do not rinse the unit. This may cause electric shocks or fire.
■Do not install the unit in places such as the following:
■ Where there is mist of mineral oil, oil spray or vapour.
Plastic parts may deteriorate, and cause them to fall out or
water to leak.
■ Where corrosive gas, such as sulphurous acid gas, is
produced.
Corrosion of copper pipes or soldered parts may cause the
refrigerant to leak.
■ Where there is machinery which emits electromagnetic
waves.
Electromagnetic waves may disturb the control system, and
cause malfunction of the equipment.
■ Where flammable gases may leak, where carbon fibre or
ignitable dust is suspended in the air or where volatile
flammables, such as thinner or gasoline, are handled.
Such gases may cause a fire.
■ Where the air contains high levels of salt such as that near
the ocean.
■ Where voltage fluctuates a lot, such as that in factories.
■ In vehicles or vessels.
■ Where acidic or alkaline vapour is present.
BEFOREINSTALLATION
Installation
■Be sure to confirm the model name and the serial no. of the
outer (front) plates when attaching/detaching the plates to avoid
mistakes.
■When closing the service panels, take care that the tightening
torque does not exceed 4.1 N•m.
Model
EDL and EBL units include special equipment (insulation, heater
sheet,...) to ensure good operation in areas where low ambient
temperature can occur together with high humidity conditions. In
such conditions the EDH and EBH models may experience problems
with severe ice build up on the air-cooled coil. In case such
conditions are expected, the EDL or EBL must be installed instead.
These models contain countermeasures (insulation, heater sheet,...)
to prevent freeze up.
Due to relatively large dimensions
and high weight, the handling of the
unit is only to be done by means of
lifting tools with slings. These slings
can be fitted into specially for this
purpose foreseen sleeves at the
base frame.
■To avoid injury, do not
touch the air inlet or
aluminium fins of the
unit.
■Do not use the grips in
the fan grills to avoid
damage.
■Unit is top heavy!
Prevent the unit from falling due to inclination during
handling.
Centre of gravity is indicated on the unit.
IMPORTANTINFORMATIONREGARDINGTHE
REFRIGERANTUSED
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
This product contains fluorinated greenhouse gases covered by the
Kyoto Protocol. Do not vent gases into the atmosphere.
Refrigerant type:R410A
(1)
GWP
value:1975
(1)
GWP = global warming potential
The refrigerant quantity is indicated on the unit name plate
Installation manual
4
SELECTINGINSTALLATIONSITE
■Set the outlet side at a right angle to the direction of the wind.
■Make sure to provide for adequate measures in order
to prevent that the outdoor unit be used as a shelter
by small animals.
■Small animals making contact with electrical parts can
cause malfunctions, smoke or fire. Please instruct the
customer to keep the area around the unit clean.
1Select an installation site where the following conditions are
satisfied and that meets with your customer's approval.
- Places which are well-ventilated.
- Places where the unit does not bother next-door neighbours.
- Safe places which can withstand the unit's weight and
vibration and where the unit can be installed level.
- Places where there is no possibility of flammable gas or
product leak.
- The equipment is not intended for use in a potentially
explosive atmosphere.
- Places where servicing space can be well ensured.
- Places where the units' piping and wiring lengths come within
the allowable ranges.
- Places where water leaking from the unit cannot cause
damage to the location (e.g. in case of a blocked drain pipe).
- Places where the rain can be avoided as much as possible.
- Do not install the unit in places often used as workplace.
In case of construction works (e.g. grinding works) where a
lot of dust is created, the unit must be covered.
- Do not place any objects or equipment on top of the unit (top
plate)
- Do not climb, sit or stand on top of the unit.
- Be sure that sufficient precautions are taken, in accordance
with relevant local laws and regulations, in case of refrigerant
leakage.
2When installing the unit in a place exposed to strong wind, pay
special attention to the following.
Strong winds of 5 m/sec or more blowing against the unit's air
outlet causes short circuit (suction of discharge air), and this
may have the following consequences:
- Deterioration of the operational capacity.
-Frequent frost acceleration in heating operation.
- Disruption of operation due to rise of high pressure.
- When a strong wind blows continuously on the face of the
unit, the fan can start rotating very fast until it breaks.
Refer to the figures for installation of this unit in a place where
the wind direction can be foreseen.
■Tu rn the air outlet side toward the building's wall, fence or
screen.
Strong wind
Blown airStrong wind
3Prepare a water drainage channel around the foundation, to
drain waste water from around the unit.
4If the water drainage of the unit is not easy, please build up the
unit on a foundation of concrete blocks, etc. (the height of the
foundation should be maximum 150 mm).
5If you install the unit on a frame, please install a waterproof plate
within 150 mm of the underside of the unit in order to prevent the
invasion of water from the lower direction.
6When installing the unit in a place frequently exposed to snow,
pay special attention to elevate the foundation as high as
possible.
7If you install the unit on a building frame,
please install a waterproof plate (field
supply) (within 150 mm) of the underside
of the unit) in order to avoid the drainwater
dripping. (See figure).
Selecting a location in cold climates
Refer to "Handling" on page 4.
NOTE
■To prevent exposure to wind, install the unit with its suction side
■Never install the unit at a site where the suction side may be
■To prevent exposure to wind, install a baffle plate on the air
■In heavy snowfall areas it is very important to select an
When operating the unit in a low outdoor ambient
temperature, be sure to follow the instructions
described below.
facing the wall.
exposed directly to wind.
discharge side of the unit.
installation site where the snow will not affect the unit. If lateral
snowfall is possible, make sure that the heat exchanger coil is
not affected by the snow (if necessary construct a lateral
canopy).
Make sure there is enough room to do the installation
Installation manual
5
1Construct a large canopy.
2Construct a pedestal.
Install the unit high enough off the
ground to prevent burying in snow.
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
PRECAUTIONSONINSTALLATION
Installation servicing space
■Check the strength and level of the installation ground so that
the unit will not cause any operating vibration or noise after
installation.
■In accordance with the foundation drawing in the figure, fix the
unit securely by means of the foundation bolts. (Prepare four
sets of M12 foundation bolts, nuts and washers each which are
available on the market.)
■It is best to screw in the foundation bolts until their length are
20 mm from the foundation surface.
ACC
B
240955240
1435
ADischarge side
BBottom view mm
CDrain hole
Drain work
Check in the combination table under "Possible options" on page 4
whether drain work is allowed. In case drain work on your unit is
allowed and the installation site requires drain work, then follow the
guidelines below.
■Drain kits for drainage are available as option.
■If drain work from the unit causes trouble (for example, if the
drain water may splash on people) provide the drain piping using
a drain socket (optional).
■Make sure the drain works properly.
345
380
The numerical figures used in the figures represent the dimensions in
mm.
(Refer to "Precautions on installation" on page 6)
Precaution
(A) In case of non-stacked installation figure 1
Suction side obstacle
Discharge side obstacle
Left side obstacle
Right side obstacle
20
Top side obstacle
NOTE
Minimum distance B1 in figure 1mentions the
Obstacle is present
✓
In these cases, close the
1
bottom of the installation
frame to prevent the
discharged air from
being bypassed
In these cases, only
2
2 units can be installed.
This situation is not
allowed
space required for correct operation of the unit.
Required space for servicing though is 300 mm.
(B) In case of stacked installation
1.In case obstacles exist in front of the outlet side.
A
≥100
≥1000
NOTE
If drain holes of the unit
are covered by a
mounting base or by floor
surface, raise the unit in
order to provide a free
space of more than
100 mm under the unit.
100 mm
Installation method for prevention of falling over
If it is necessary to prevent the unit from falling over, install as shown
in the figure.
■prepare all 4 wires as indicated in the drawing
■unscrew the top plate at the 4 locations indicated A and B
■put the screws through the nooses and screw them back tight
AA
B
C
2.In case obstacles exist in front of the air inlet.
A
≥100
≥300
Do not stack more than one unit.
About 100 mm is required as the dimension for laying the upper unit's
drain pipe. Get the portion A sealed so that air from the outlet does
not bypass.
ALocation of the 2 fixation holes on the front side of the unit
BLocation of the 2 fixation holes on the rear side of the unit
CWires: field supply
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
Installation manual
6
(C) In case of multiple-row installation (for roof top use, etc.)
1.In case of installing one unit per row.
≥100
≥2000
≥200
≥1000
2.In case of installing multiple units (2 units or more) in lateral
connection per row.
L
A
≥3000
H
≥600
≥1500
Relation of dimensions of H, A and L are shown in the table below.
LA
L≤H
H<LInstallation not allowed
0<L≤1/2H250
1/2H<L300
TYPICALAPPLICATIONEXAMPLES
The application examples given below are for illustration purposes
only.
Application 1
Space heating only application with a room thermostat connected to
the unit.
When a room thermostat (T) is connected to the unit and when there
is a heating request from the room thermostat, the unit will start
operating to achieve the target leaving water temperature as set on
the user interface.
When the room temperature is above the thermostat set point, the
unit will stop operating.
Make sure to connect the thermostat wires to the correct
terminals (see "Connection of the thermostat cable" on
page 22) and to configure the DIP switch toggle switches
correctly (see "Room thermostat installation configuration"
on page 25).
Installation manual
7
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
Application 2
Space heating only application without room thermostat connected to
the unit. The temperature in each room is controlled by a valve on
each water circuit. Domestic hot water is provided through the
domestic hot water tank which is connected to the unit.
I
Domestic water heating
When domestic water heating mode is enabled (either manually by
the user, or automatically through a schedule timer) the target
domestic hot water temperature will be achieved by a combination of
the heat exchanger coil and the electrical booster heater.
When the domestic hot water temperature is below the user
configured set point, the 3-way valve will be activated to heat the
domestic water by means of the heat pump. In case of large domestic
hot water demand or a high domestic hot water temperature setting,
the booster heater (8) can provide auxiliary heating.
43721
1Unit9Heat exchanger coil
2Heat exchanger10Domestic hot water tank
3Pump
4Shut-off valveFHL1..3Floor heating loop
5Collector (field supply)
6Motorised 3-way valve
(optional)
7By-pass valve
(field supply)
8Booster heater
6
M
T1..3Individual room
M1..3Individual motorised
5
T1
M1
M2T2M3
98
FHL1
FHL2
10
(optional)
(field supply)
thermostat (field supply)
valve to control loop
FHL1 (field supply)
IUser interface
T3
FHL3
Pump operation
With no thermostat connected to the unit (1), the pump (3) can be
configured to operate either as long as the unit is on, or until the
required water temperature is reached.
It is possible to connect either a 2-wire or a 3-wire 3-way
valve (6). Make sure to fit the 3-way valve correctly. For
more details, refer to "Wiring the 3-way valve" on page 23.
NOTE
The unit can be configured so that at low outdoor
temperatures the domestic water is exclusively heated
by the booster heater. This assures that the full
capacity of the heat pump is available for space
heating.
Details on domestic hot water tank configuration for
low outdoor temperatures can be found under "Field
settings" on page 28, field settings [5-02] to [5-04].
Application 3
Space cooling and heating application with a room thermostat
suitable for heating/cooling changeover connected to the unit.
Heating is provided through floor heating loops and fan coil units.
Cooling is provided through the fan coil units only.
Domestic hot water is provided through the domestic hot water tank
which is connected to the unit.
5
I
T
4321
611
M
FCU1
FCU2
M
FCU3
NOTE
Details on pump configuration can be found under
"Pump operation configuration" on page 26.
Space heating
The unit (1) will operate to achieve the target leaving water
temperature as set on the user interface.
When circulation in each space heating loop (FHL1..3) is
controlled by remotely controlled valves (M1..3), it is
important to provide a by-pass valve (7) to avoid the flow
switch safety device from being activated.
The by-pass valve should be selected as such that at all
time the minimum water flow as mentioned under "Water
pipework" on page 14 is guaranteed.
It is recommended to select a pressure difference
controlled by-pass valve.
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
98
FHL1
FHL2
FHL3
10
1Unit10Domestic hot water tank
2Heat exchanger11Motorised 2-way valve
3Pump
4Shut-off valveFCU1..3Fan coil unit (field supply)
5Collector (field supply)FHL1..3Floor heating loop
6Motorised 3-way valve
(optional)TRoom thermostat with
8Booster heater
9Heat exchanger coil
(field supply)
(field supply)
heating/cooling switch
(optional)
IUser interface
Installation manual
8
Pump operation and space heating and cooling
According to the season, the customer will select cooling or heating
on the room thermostat (T). This selection is not possible by
operating the user interface.
When space heating/cooling is requested by the room thermostat
(T), the pump will start operating and the unit (1) will switch to
"heating mode"/"cooling mode". The unit (1) will start operating to
achieve the target leaving cold/hot water temperature.
In case of cooling mode, the motorised 2-way valve (11) will close as
to prevent cold water running through the floor heating loops (FHL).
Make sure to connect the thermostat wires to the correct
terminals (see "Connection of the thermostat cable" on
page 22) and to configure the DIP switch toggle switches
correctly (see "Room thermostat installation configuration"
on page 25).
Wiring of the 2-way valve (11) is different for a NC (normal
closed) valve and a NO (normal open) valve! Make sure to
connect to the correct terminal numbers as detailed on the
wiring diagram.
The ON/OFF setting of the heating/cooling operation is done by the
room thermostat and cannot be done by the user interface.
Domestic water heating
Domestic water heating is as described under "Application 2" on
page 8.
Application 4
Space cooling and heating application without a room thermostat
connected to the unit, but with a heating only room thermostat
controlling the floor heating and a heating/cooling thermostat
controlling the fan coil units. Heating is provided through floor heating
loops and fan coil units. Cooling is provided through the fan coil units
only.
5
I
T4T5T6
432112
1Unit12Motorised 2-way valve for
2Heat exchanger
3PumpFCU1..3Fan coil unit with
4Shut-off valve
5Collector (field supply)FHL1..3Floor heating loop (field
7By-pass valve (field
supply)THeating only room
11Motorised 2-way valve
to shut off the floor
heating loops during
cooling operation (field
supply)
11
FCU1
T
M
M
T4..6Individual room
IUser interface
FCU2
5
FHL1
FHL2
activation of the room
thermostat (field supply)
thermostat (field supply)
supply)
thermostat (optional)
thermostat for fan coil
heated/cooled room
(optional)
FCU3
FHL3
Pump operation
With no thermostat connected to the unit (1), the pump (3) can be
configured to operate either as long as the unit is on, or until the
required water temperature is reached.
NOTE
Details on pump configuration can be found under
"Pump operation configuration" on page 26.
Space heating and cooling
According to the season, the customer will select cooling or heating
through the user interface.
The unit (1) will operate in cooling mode or heating mode to achieve
the target leaving water temperature.
With the unit in heating mode, the 2-way valve (11) is open. Hot water
is provided to both the fan coil units and the floor heating loops.
With the unit in cooling mode, the motorised 2-way valve (11) is
closed to prevent cold water running through the floor heating loops
(FHL).
When closing several loops in the system by remotely
controlled valves, it might be required to install a by-pass
valve (7) to avoid the flow switch safety device from being
activated. See also "Application 2" on page 8.
Wiring of the 2-way valve (11) is different for a NC (normal
closed) valve and a NO (normal open) valve! Make sure to
connect to the correct terminal numbers as detailed on the
wiring diagram.
The ON/OFF setting of the heating/cooling operation is done by the
user interface.
Application 5
Space heating with an auxiliary boiler (alternating operation)
7
Space heating application by either the Daikin unit or by an auxiliary
boiler connected in the system. The decision whether either the
E(D/B)* unit or the boiler will operate can be achieved by an auxiliary
contact or an E(D/B)* indoor controlled contact.
The auxiliary contact can e.g. be an outdoor temperature thermostat,
an electricity tariff contact, a manually operated contact, etc. See
"Field wiring configuration A" on page 10.
The E(D/B)* unit controlled contact (also called 'permission signal for
the auxiliary boiler") is determined by the outdoor temperature
(thermistor located at the outdoor unit). See "Field wiring
configuration B" on page 10.
Bivalent operation is only possible for space heating operation, not
for the domestic water heating operation. Domestic hot water in such
an application is always provided by the domestic hot water tank
which is connected to the Daikin unit.
The auxiliary boiler must be integrated in the piping work and in the
field wiring according to the illustrations below.
Installation manual
9
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
CAUTION
■Be sure that the boiler and the integration of the boiler
in the system is in accordance with relevant local laws
and regulations.
■Always install a 3-way valve, even if no domestic hot
water tank is installed. This to ensure that the freeze
protection function (see "[4-04] Freeze protection
function" on page 31) can operate when the boiler is
active.
I
1
M
2
FHL1 FHL2 FHL3
1Motorised 3-way valve
2Boiler
■Daikin can not be put responsible for incorrect or
unsafe situations in the boiler system.
I
618
4321
517
Field wiring configuration A
L
Com
H
E(D/B)*/auto
Boiler
/Boiler
N
A
K1A
K2A
Boiler thermostat input
K1A
E(D/B)*
X2M
123 4
Boiler
thermostat input
Y
X
K2A
thermostat input
AAuxiliary contact (normal closed)
HHeating demand room thermostat (optional)
K1AAuxiliary relay for activation of E(D/B)* unit (field
supply)
K2AAuxiliary relay for activation of boiler (field supply)
Field wiring configuration B
E(D/B)*
X2M
12
3 4
K1A
Com
H
C
EKRTW*
Boiler
thermostat input
CCooling demand room thermostat (optional)
HHeating demand room thermostat (optional)
ComCommon room thermostat (optional)
K1AAuxiliary relay for activation of boiler unit
When the room thermostat requests heating, either the E(D/B)*
unit or the boiler starts operating, depending on the position of
the auxiliary contact (A).
■Configuration B
When the room thermostat requests heating, either the E(D/B)*
unit or the boiler starts operating, depending on the outdoor
temperature (status of "permission signal for the auxiliary
boiler").
When the permission is given towards the boiler, the space
heating operation by the E(D/B)* unit will be automatically
switched off.
For more details see field setting [C-02~C-04].
FHL3
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
Installation manual
10
NOTE
■Configuration A
Make sure that auxiliary contact (A) has sufficient
differential or time delay so as to avoid frequent
changeover between the E(D/B)* unit and the
boiler. If the auxiliary contact (A) is an outdoor
temperature thermostat, make sure to install the
thermostat in the shade, so that it is not
influenced or turned ON/OFF by the sun.
Configuration B
Make sure that the bivalent hysteresis [C-04] has
sufficient differential to avoid frequent changeover
between the E(D/B)* unit and the boiler. As the
outdoor temperature is measured via the outdoor
unit, air thermistor make sure to install the
outdoor unit in the shade, so that it is not
influenced by the sun.
Frequent switching may cause corrosion of the
boiler in an early stage. Contact the manufacturer
of the boiler.
■During heating operation of the E(D/B)* unit, the
unit will operate so as to achieve the target
leaving water temperature as set on the user
interface. When weather dependent operation is
active, the water temperature is determined
automatically depending on the outdoor
temperature.
During heating operation of the boiler, the boiler
will operate so as to achieve the target leaving
water temperature as set on the boiler controller.
Never set the target leaving water temperature set
point on the boiler controller above 55°C.
■Make sure to only have 1 expansion vessel in the
water circuit. An expansion vessel is already
premounted in the Daikin unit.
Application 6
Space heating with room thermostat application through floor heating
loops and fan coil units. The floor heating loops and fan coil units
require different operating water temperatures.
The floor heating loops require a lower water temperature in heating
mode compared to fan coil units. To achive these two set points, a
mixing station is used to adapt the water temperature according to
requirements of the floor heating loops. The fan coil units are directly
connected to the unit water circuit and the floor heating loops after
the mixing station. The control of this mixing station is not done by the
unit.
The operation and configuration of the field water circuit is the
responsibility of the installer.
Daikin only offers a dual set point control function. By this function
two set points can be generated. Depending on the required water
temperature (floor heating loops and/or fan coil units are required)
first set point or second set point can be activated.
T1
T2
4321
B
A
FCU1
6
5
FCU2
FCU3
NOTE
Make sure to configure the DIP switch SS2-3 on the
PCB of the E(D/B)* switch box correctly. Refer to
"Room thermostat installation configuration" on
page 25.
For configuration B: Make sure to configure the field
settings [C-02, C-03 and C-04] correctly. Refer to
"Bivalent operation" on page 35.
CAUTION
Make sure that return water to the E(D/B)* heat exchanger
never exceeds 55°C.
For this reason, never put the target leaving water
temperature set point on the boiler controller above 55°C
and install an aquastat
(a)
valve in the return water flow of
the E(D/B)* unit.
Make sure that the non-return valves (field supply) are
correctly installed in the system.
Make sure that the room thermostat (th) is not frequently
turned ON/OFF.
Daikin shall not be held liable for any damage resulting
from failure to observe this rule.
(a) The aquastat valve must be set for 55°C and must operate to close the return
water flow to the unit when the measured temperature exceeds 55°C. When the
temperature drops to a lower level, the aquastat valve must operate to open the
return water flow to the E(D/B)* unit again.
Manual permission towards the E(D/B)* unit on the boiler.
In case only the E(D/B)* unit should operate in space
heating mode, disable the bivalent operation via setting
[C-02].
In case only the boiler should operate in space heating
mode, increase the bivalent ON temperature [C-03] to
25°C.
7
1Outdoor unit7Mixing station (field supply)
2Heat exchangerT1Room thermostat for zone
3Pump
4Shut-off valveT2Room thermostat for zone
5Collector zone A
(field supply)FCU1..3Fan coil unit (optional)
6Collector zone B
(field supply)
FHL1...3Floor heating loop
FHL1
FHL2
FHL3
A (optional)
B (optional)
(field supply)
The advantage of the dual set point control is that the heat
pump will/can operate at the lowest required leaving water
temperature when only floor heating is required. Higher
leaving water temperatures are only required in case fan
coil units are operating.
This results in a better performance of the heat pump.
Pump operation and space heating
When the room thermostat for the floor heating loop (T1) and the fan
coil units (T2) are connected to the indoor unit, the pump (4) will
operate when there is a request for heating from T1 and/or T2. The
outdoor unit will start operating to achieve the target leaving water
temperature. The target leaving water temperature depends on which
room thermostat is requesting heating.
Set pointField settingThermo status
Zone AFirstUIONOFFONOFF
Zone BSecond[7-03]OFFONONOFF
Resulting water temperatureUI[7-03][7-03]—
Result pump operationONONONOFF
Installation manual
11
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
When the room temperature of both zones is above the thermostat
set point, the outdoor unit and pump will stop operating.
Main components
NOTE
NOTE
■Make sure to connect the thermostat wires to the
correct terminals (see "Overview of the unit" on
page 12).
■Make sure to configure the field settings [7-02],
[7-03] and [7-04] correctly. Refer to "Dual set point
control" on page 33.
■Make sure to configure the DIP switch SS2-3 on
the PCB of the E(D/B)* switch box correctly. Refer
to "Room thermostat installation configuration" on
page 25.
■The request signals for space heating can be
implemented in two different ways (installer
choice).
- Thermo ON/OFF signal from room thermostat
- Status signal (active/not active) from the
mixing station
■It is the installers responsibility to make sure no
unwanted situations can occur (e.g. too high
water temperatures towards floor heating loops,
etc.)
■Daikin does not offer any type of mixing station.
Dual set point control only provides the possibility
to use two set points.
■When only zone A request heating, zone B will be
fed with water at a temperature equal to the first
set point.
This can lead to unwanted heating of zone B.
■When only zone B request heating, the mixing
station will be fed with water at a temperature
equal to the second set point.
Depending on the control of the mixing station,
the floor heating loop can still receive water at a
temperature equal to set point of the mixing
station.
Be aware that the actual water temperature through the
floor heating loops depends on the control and setting of
the mixing station.
OVERVIEWOFTHEUNIT
Opening the unit
22
1
3
Door 1 gives access to the compressor compartment and electrical parts
Door 2 gives access to the electrical parts of the hydraulic compartment
Door 3 gives access to the hydraulic compartment
Switch off all power supply — i.e. unit power supply and
backup heater and domestic hot water tank power supply
(if applicable) — before removing doors 1 and 2.
Parts inside the unit can be hot.
Hydraulic compartment (door 3)
1
18
13
17
16
15
8
10
3
9
8
14
12
3
11
1.Air purge valve
Remaining air in the water circuit will be automatically removed
via the air purge valve.
2.Backup heater
The backup heater consists of an electrical heating element that
will provide additional heating capacity to the water circuit if the
heating capacity of the unit is insufficient due to low outdoor
temperatures, it also protects the external water piping from
freezing during cold periods.
3.Temperature sensors
Four temperature sensors determine the water and refrigerant
temperature at various points in the water circuit.
4.Heat exchanger
5.Expansion vessel (10 l)
6.Refrigerant liquid connection
7.Refrigerant gas connection
8.Shut-off valves
The shut-off valves on the water inlet connection and water
outlet connection allow isolation of the unit water circuit side
from the residential water circuit side. This facilitates draining
and filter replacement of the unit.
9.Water inlet connection
10. Water outlet connection
11. Drain and fill valve
12. Water filter
The water filter removes dirt from the water to prevent damage
to the pump or blockage of the evaporator. The water filter must
be cleaned on a regular base. See "Maintenance and service"
on page 40.
13. Manometer
The manometer allows readout of the water pressure in the
water circuit.
3PW55762-1
2
3
4
5
7
6
3
E(D/B)(H/L)Q011~016BA6V3+W1
Unit for air to water heat pump system
4PW57621-1A
Installation manual
12
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