The appliance shall be stored in a room without
continuously operating ignition sources (example: open
flames, an operating gas appliance or an operating electric
heater).
3.1.1Installation site requirements of the
indoor unit
▪ Mind the following spacing installation guidelines:
INFORMATION
If you have limited installation space and need to install the
option kit EKGSPOWCAB (=power cable for split power
supply), remove the left side panel before installing the unit
in its final position. See "3.2.1 To open the indoor
unit"[47].
▪ The indoor unit is designed for indoor installation only and for
ambient temperatures ranging from 5~35°C.
Special requirements for R32
The indoor unit contains an internal refrigerant circuit (R32), but you
do NOT have to do any refrigerant field piping or refrigerant
charging.
The total refrigerant charge in the system is ≤1.842 kg, so the
system is NOT subjected to any requirements to the installation
room. However, mind the following requirements and precautions:
WARNING
▪ Do NOT pierce or burn.
▪ Do NOT use means to accelerate the defrosting
process or to clean the equipment, other than those
recommended by the manufacturer.
▪ Be aware that R32 refrigerant does NOT contain an
odour.
WARNING
The appliance shall be stored so as to prevent mechanical
damage and in a well-ventilated room without continuously
operating ignition sources (example: open flames, an
operating gas appliance or an operating electric heater).
Installation manual
6
Tundish 15mm inlet, 22mm outlet
Wall mounting set for expansion vessel
Instruction sheet
Expansion vessel of 18l – 3/4" Male BSP
WARNING
Make sure installation, servicing, maintenance and repair
comply with instructions from Daikin and with applicable
legislation (for example national gas regulation) and are
executed only by authorised persons.
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598591-1B – 2020.07
3 Unit installation
c
b
a
e
f
d
5×
T25
1
1
2
2×
T25
3×
T25
3.2Opening and closing the unit
3.2.1To open the indoor unit
NOTICE
For a standard installation, it is usually NOT required to
open the unit. Opening the unit or any of the switch boxes
is ONLY required when you want to install extra option kits.
For more information, see the installation manual of the
specific option kit, or below.
Overview
a Top panel
b User interface panel
c Front panel
d Left side panel
e Installer switch box cover
f Main switch box cover
Open
1 Remove the top panel.
3 If necessary, remove the front panel. This is, for example,
necessary when you want to remove the hydro module from the
unit. See "3.2.2 To remove the hydro module from the
unit"[48] for more information.
4 In case you want to install the option kit EKGSPOWCAB
(=power cable for split power supply), also remove the left side
panel. Also see "5.3To connect the main power supply"[415].
2 Remove the user interface panel. Open the hinges at the top
and slide the user interface panel upwards.
NOTICE
If you remove the user interface panel, also disconnect the
cables from the back of the user interface panel to prevent
damage.
6 In case you have to install additional options that require access
to the main switch box, remove the main switch box cover as
follows:
3 Remove the clips that lock the valves in place.
3.2.2To remove the hydro module from the unit
Removing the hydro module is only required for easier transportation
of the unit or for servicing. The removal of the module will
significantly reduce the weight of the unit. This makes the unit easier
to handle and carry.
1 Open the following (see "3.2.1To open the indoor unit"[47]):
1 User interface panel
2 Front panel
2 Remove the insulation from the shut-off valves by cutting the
cable ties.
4 Uncouple the piping.
5 Remove the lower hydro module cover.
6 Unlink the connectors that run from the hydro module to the
main switch box or other locations. Route the wires through the
grommets of the upper hydro module cover.
Installation manual
8
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598591-1B – 2020.07
3 Unit installation
5×
T25
1×
T25
4×
a
b
7 Remove the upper hydro module cover. You can lift up the
uncoupled piping to access the screws more easily, and to take
off the cover itself.
8 Remove the screw that fixes the hydro module to the bottom
plate.
Removal after first installation
If the water and brine circuits have been filled before, remaining
water and brine need to be drained from the hydro module before
removal. In this case, perform the following actions:
1 Remove the insulation from the shut-off valves. (See step 2 in
"3.2.2To remove the hydro module from the unit"[48].)
2 Close the shut-off valves by turning the lever handles.
3 Remove the lower hydro module cover. (See step 5 in "3.2.2To
remove the hydro module from the unit"[48].)
4 Drain remaining water and brine from the hydro module.
9 Lift the uncoupled piping and use the handle on the front of the
module to carefully slide the module out of the unit. Make sure
the module remains level and does not tilt forward.
CAUTION
The hydro module is heavy. It requires at least two persons
to carry it.
NOTICE
Make sure not to damage any insulation during the
removal process.
Ensure that no brine or water can fall into the switch box of
the hydro module.
5 Perform the remaining steps as described in "3.2.2 To remove
the hydro module from the unit"[48].
3.2.3To close the indoor unit
1 If applicable, reinstall the left side panel.
2 If applicable, reinsert the hydro module.
3 If applicable, close the cover of the main switch box and
reinstall the front panel.
4 Close the cover of the installer switch box.
5 Reconnect the cables to the user interface panel.
6 Reinstall the user interface panel.
7 Reinstall the top panel.
NOTICE
When closing the indoor unit cover, make sure that the
tightening torque does NOT exceed 4.1N•m.
3.3Mounting the indoor unit
3.3.1To install the indoor unit
1 Lift the indoor unit from the pallet and place it on the floor. See
"2.1.2To handle the indoor unit"[45].
Installation manual
9
4 Piping installation
≤1°
1° 1°
0°
2 Connect the drain hose to the drain. See "3.3.2To connect the
drain hose to the drain"[410].
3 Slide the unit into position.
4 Adjust the height of the 4 levelling feet of the outer frame to
compensate for floor irregularities. The maximum allowed
deviation is 1°.
NOTICE
Do NOT tilt the unit forwards:
4Piping installation
4.1Preparing piping
WARNING
It is the responsibility of the installer to ensure the
compatibility of field piping with the used anti-freeze fluid in
the brine circuit. Do NOT use Zn-coated piping, as this
may lead to excessive corrosion. See also "4.2.4To fill the
brine circuit"[411].
NOTICE
In case of plastic pipes, make sure they are fully oxygen
diffusion tight according to DIN 4726. The diffusion of
oxygen into the piping can lead to excessive corrosion.
NOTICE
All piping MUST be installed according to section G3 of the
Building Regulations.
4.1.1To check the water volume and flow rate
of the space heating circuit and brine
circuit
Minimum water volume
Check that the total water volume per circuit in the installation is
minimum 20litre, the internal water volume of the indoor unit NOT
included.
NOTICE
To avoid structural damage on unit, ONLY move the unit
when levelling feet are at their lowest position.
NOTICE
For optimum sound reduction, carefully check if there is no
gap between the bottom frame and the floor.
3.3.2To connect the drain hose to the drain
Condensate can form inside the unit during cooling operation or with
low brine temperatures. The top and backup heater drain pans are
connected to a drain hose inside the unit. You must connect the
drain hose to an appropriate drain according to the applicable
legislation. The drain hose is routed through the rear panel, towards
the right side of the unit.
INFORMATION
If a minimum heating load of 1kW can be guaranteed and
setting [4.B] Space heating/cooling > Overshoot
(overview field setting [9‑04]) is 4°C, the minimum water
volume can be lowered to 10litre.
INFORMATION
In critical processes, or in rooms with a high heat load,
extra water might be required.
NOTICE
When circulation in each space heating/cooling loop is
controlled by remotely controlled valves, it is important that
the minimum water volume is guaranteed, even if all of the
valves are closed.
Do NOT use excessive force when connecting the field
piping and make sure the piping is aligned properly.
Deformation of the piping can cause malfunctioning of the
unit.
Installation manual
10
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598591-1B – 2020.07
4 Piping installation
a
b
b
a
a
c
b
7 Reconnect the safety valve.
8 Open the shut-off valve below the vessel.
4.2.3To connect the brine filling kit
A brine filling kit (field supply or option kit KGSFILL2) can be used to
flush, fill and drain the brine circuit of the system.
For installation instructions, see the installation manual of the brine
filling kit.
a Brine OUT (Ø28mm)
b Brine IN (Ø28mm)
NOTICE
To facilitate service and maintenance, it is recommended
to install shut-off valves as close as possible to the inlet
and outlet of the unit.
4.2.2To connect the brine level vessel
The brine level vessel (delivered as accessory) must be installed on
the brine side of the heat pump system. A safety valve is included
with the vessel. The vessel serves as a visual indicator of the brine
level of the system. Air trapped in the system is collected by the
vessel, causing the level of brine in the vessel to decrease.
1 Install the brine level vessel as the highest point in the brine
circuit on the entering brine piping.
2 Mount the included safety valve on top of the vessel.
3 Install a shut-off valve (field supplied) below the vessel.
NOTICE
If it is not possible to install the brine level vessel as the
highest point in the circuit, install an expansion vessel (field
supply) and install the safety valve in front of the expansion
vessel. Failure to observe this instruction may result in
malfunctioning of the unit.
4.2.4To fill the brine circuit
WARNING
Before, during and after filling carefully check the brine
circuit for leakage.
INFORMATION
The materials used in the brine circuit of the unit are
chemically resistant to the following anti-freeze fluids:
▪ 40 mass% propylene glycol
▪ 29 mass% ethanol
1 Install the brine filling kit. See "4.2.3To connect the brine filling
kit"[411].
2 Connect a field supplied brine filling system to the 3-way valve.
3 Position the 3‑way valve correctly.
a Brine level vessel (accessory)
b Expansion vessel (field supply, in case brine level vessel
cannot be installed as the highest point)
If the level of brine in the vessel is lower than 1/3, fill the vessel with
brine:
4 Close the shut-off valve below the vessel.
5 Remove the safety valve on top of the vessel.
6 Top up the vessel with brine until it is approximately 2/3 filled.
a Brine level vessel (accessory)
b Brine filling kit (field supply or option kit KGSFILL2)
c Brine filling system (field supply)
4 Fill the circuit with brine until a pressure of ±2.0bar (=200kPa).
5 Return the 3‑way valve to its original position.
NOTICE
A field supplied filling kit may come without a filter that
protects components in the brine circuit. In this case, it is
the responsibility of the installer to install a filter on the
brine side of the system.
WARNING
Temperature of the fluid running through the evaporator
can become negative. It MUST be protected against
freezing. For more information, see setting [A‑04] in
"6.4.4Brine freezing temperature"[434].
Installation manual
11
4 Piping installation
a
b
c
d
b
a
e
e
b
d
c
12
4.2.5To insulate the brine piping
The piping in the complete brine circuit MUST be insulated to
prevent reduction of the heating capacity.
Consider that the brine circuit piping inside the house can/will
condensate. Foresee adequate insulation for these pipes.
4.3Connecting water piping
4.3.1To connect the water piping
NOTICE
Do NOT use excessive force when connecting the field
piping and make sure the piping is aligned properly.
Deformation of the piping can cause malfunctioning of the
unit.
1 Install the shut off-valve with integrated filter (delivered as
accessory) at the space heating/cooling water inlet.
2 Connect the space heating/cooling in pipe to the shut-off valve
and the space heating/cooling out pipe to the unit.
3 Connect the domestic hot water in and out pipes to the indoor
unit. It is obligatory to use the accessory G3 kit EKUHWG3D to
comply with UK legislation. See "4.3.2 To connect the water
piping for domestic hot water"[412].
4.3.2To connect the water piping for domestic
hot water
a Space heating/cooling water OUT (Ø22mm)
b Space heating/cooling water IN (Ø22mm) and shut-off
valve with integrated filter (accessory)
c Domestic hot water: hot water OUT (Ø22mm)
d Domestic hot water: cold water IN (Ø22mm)
NOTICE
It is recommended to install shut-off valves to cold water in
and hot water out connections. Shut-off valves are field
supplied.
NOTICE
About the shut-off valve with integrated filter (delivered as
accessory):
▪ The installation of the valve at the water inlet is
mandatory.
▪ Mind the flow direction of the valve.
NOTICE
Expansion vessel. An expansion vessel (field supply)
MUST be installed on the entering piping before the water
pump within 10m of the unit.
NOTICE
Install air purge valves at all local high points.
1 Pre-assemble the adaptor and expansion vessel so that the
expansion vessel is ready for installation.
2 Mount the expansion vessel to the wall.
Installation manual
12
3 Fit the T-piece (part of the kit) to the domestic hot water cold
water IN pipe of the unit.
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598591-1B – 2020.07
4 Connect the pressure reducing valve/pressure relief valve
≤600 mm
≥300 mm
a
D1
D2
c
b
d
combination (part of the kit) to the T-piece with a length of
copper tube Ø22mm (field supply).
5 Connect the expansion vessel to the T-piece with a length of
copper tube Ø22mm (field supply).
6 Connect the pressure reducing valve/pressure relief valve
combination to the water mains inlet.
7 Install the tundish (part of the kit) in a vertical position within a
maximum of 600mm away from the pressure reducing valve/
pressure relief valve combination.
WARNING
Install the tundish away from any electrical device.
Possible consequence: Electric shock or fire.
NOTICE
To ensure a free water flow through the discharge pipe,
manually operate the pressure relief valve by turning its
knob left.
8 Connect the 2 tundishes (1 from the pressure relief valve of the
domestic hot water tank, and 1 from the pressure relief valve of
the domestic hot water tank kit) to an appropriate drain
according to the applicable legislation. The following example
shows discharge below fixed grating (Building Regulation G3
section 3.61 gives alternative points of discharge):
4 Piping installation
WARNING
The discharge pipes from the pressure relief valves MUST
terminate in a safe and visible position without forming any
risk to persons in the vicinity.
WARNING
▪ Discharge piping, tundish, drain valves, etc. must be
positioned away from any electrical components.
▪ The discharge pipe away from the tundish must
terminate in a safe, visible position without forming any
risk to persons in the vicinity.
WARNING
▪ Do not install any valves between the domestic hot
water tank and relief valves/expansion vessel.
▪ Do not install shut-off valves between the expansion
relief valve and the domestic hot water tank.
NOTICE
▪ All pipework and fittings must be flushed free of flux
and debris prior to installing the domestic hot water
tank kit. Failure to do this may cause irreparable
damage to the tank kit controls. Flush the system by
opening the hot water tap.
▪ The tundish pipework must be a 22mm metal pipe with
a minimal vertical length of 300mm below the tundish
before any elbows or bends in the pipework. All
pipework must have a continuous fall of 1 in 200
thereafter. Maximum permitted (equivalent) length of
22 mm pipework is 9 m. Each bend or elbow is
a Safety device (pressure and temperature relief valve of
domestic hot water tank; pressure relief valve of domestic
hot water tank kit)
b Tundish
c Fixed grating
d Trapped gully
D1 Metal discharge pipe from safety device to tundish
D2 Discharge pipe from tundish, with continuous fall. See
Building Regulation G3 section 3.56, Table 03 and
worked example.
4.3.3To connect the recirculation piping
Prerequisite: Only required if you need recirculation in your system.
1 Remove the top panel from the unit, see "3.2.1To open the
2 Cut out the rubber grommet on top of the unit, and remove the
9 After completing the installation, the installer has to fill out the
warning label on the tank with indelible ink. The warning label
can be found on the unit top plate.
3 Route the recirculation piping through the grommet and connect
equivalent to 0.8m of pipework.
indoor unit"[47].
stop. The recirculation connector is located below the space
heating/cooling water outlet pipe.
To fill the space heating circuit, use a field supply filling kit. Make
sure you comply with the applicable legislation.
NOTICE
▪ Air in the water circuit can cause malfunctioning of the
backup heater. During filling, it may not be possible to
remove all the air from the circuit. Remaining air will be
removed through the automatic air purge valves during
the initial operating hours of the system. Additional
filling with water afterwards may be required.
▪ To purge the system, use the special function as
described in the chapter "7 Commissioning" [4 36].
This function should be used to purge the heat
exchanger coil of the domestic hot water tank.
5Electrical installation
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
CAUTION
Do NOT push or place redundant cable length in the unit.
NOTICE
The distance between the high voltage and low voltage
cables should be at least 50mm.
5.1About electrical compliance
For the models EGSAH/X06+10DA9W(G), the following statement…
Equipment complying with EN/IEC 61000‑3‑12 (European/
International Technical Standard setting the limits for harmonic
currents produced by equipment connected to public low-voltage
systems with input current >16A and ≤75A per phase.).
…is valid in the following cases:
#Power supply
1 Combined power supply
(1N~, 50Hz, 230VAC)
2 Split power supply
(2×(1N~, 50Hz, 230VAC))
(a)
Operation
Normal or emergency
Emergency
(b)
4.3.5To fill the domestic hot water tank
1 Open every hot water tap in turn to purge air from the system
pipe work.
2 Open the cold water supply valve.
3 Close all water taps after all air is purged.
4 Check for water leaks.
5 Manually operate the field-installed pressure relief valve to
ensure a free water flow through the discharge pipe.
4.3.6To check for water leaks
Before insulating the water piping, it is important to detect water
leaks, in particular small leaks. Small leaks can easily be overseen,
but can cause damage to the unit and surroundings over a longer
period of time.
NOTICE
After water piping installation, check all connections for
leaks.
4.3.7To insulate the water piping
The piping in the complete water circuit MUST be insulated to
prevent reduction of the heating capacity.
Consider that the space heating piping can condensate during
cooling operation. Foresee adequate insulation for these pipes.
(a) For details of C1 and C5, see "5.3To connect the main
power supply"[415].
(b) Normal operation: backup heater = maximum 3kW
Emergency operation: backup heater = maximum 6kW
5.2Overview of electrical connections
for external and internal actuators
ItemDescription
Power supplySee "5.3To connect the main power
supply"[415].
Remote outdoor
sensor
Shut-off valveSee "5.5To connect the shut-off
See "5.4To connect the remote outdoor
sensor"[418].
valve"[418].
Installation manual
14
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598591-1B – 2020.07
5 Electrical installation
C1
ItemDescription
Electricity meterSee "5.6To connect the electricity
meters"[419].
Domestic hot water
pump
Alarm outputSee "5.8To connect the alarm
Space cooling/heating
operation control
Changeover to
external heat source
control
Power consumption
digital inputs
Safety thermostatSee "5.12To connect the safety thermostat
Brine low pressure
switch
Thermostat for passive
cooling
LAN adapter
connections
Room thermostat
(wired or wireless)
Heat pump convectorSee:
See "5.7To connect the domestic hot water
pump"[419].
output"[420].
See "5.9To connect the space cooling/
heating ON/OFF output"[420].
See "5.10To connect the changeover to
external heat source"[421].
See "5.11To connect the power
consumption digital inputs"[422].
(normally closed contact)"[422].
See "5.13To connect the brine low
pressure switch"[423].
See "5.14To connect the thermostat for
passive cooling"[424].
See "5.15LAN adapter"[424].
See:
▪ Installation manual of the room
thermostat (wired or wireless)
▪ Addendum book for optional
equipment
Wires for wired room thermostat: (3
for cooling/heating operation; 2 for
heating only operation)×0.75mm²
Wires for wireless room thermostat: (5
for cooling/heating operation; 4 for
heating only operation)×0.75mm²
Maximum running current: 100mA
For the main zone:
▪ [2.9] Control
▪ [2.A] Thermostat type
For the additional zone:
▪ [3.A] Thermostat type
▪ [3.9] (read-only) Control
▪ Installation manual of the heat
pump convectors
▪ Addendum book for optional
equipment
Wires: 4×0.75mm²
Maximum running current: 100mA
For the main zone:
▪ [2.9] Control
▪ [2.A] Thermostat type
For the additional zone:
▪ [3.A] Thermostat type
▪ [3.9] (read-only) Control
ItemDescription
Remote indoor sensorSee:
▪ Installation manual of the remote
indoor sensor
▪ Addendum book for optional
equipment
Wires: 2×0.75mm²
[9.B.1]=2 (External sensor = Room)
[1.7] Room sensor offset
Current sensorsSee the installation manual of the
current sensors.
Wires: 3×2. Use part of the cable
(40m) delivered as accessory.
[9.9.1]=3 (Power consumption
control = Current sensor)
[9.9.E] Current sensor offset
Human Comfort
Interface
See:
▪ Installation and operation manual of
the Human Comfort Interface
▪ Addendum book for optional
equipment
Wires: 2×(0.75~1.25mm²)
Maximum length: 500m
[2.9] Control
[1.6] Room sensor offset
5.3To connect the main power supply
Use one of the following layouts to connect the power supply (for
details of C1~C5, see below the table):
#LayoutOpen the unit
1 Single cable power supply (=combined
power supply)
C1: Power supply for the backup heater,
and the rest of the unit (1N~ or 3N~)
Not necessary
(connection to
factory-mounted
cable outside of the
unit)