Zodiac iAquaLink Z400iQ User manual

H0638700_REVI - 2021/06
More documents on:
www.zodiac.com
Z400iQ
EN
Instructions for installation and use - English Heat
pump
Translation of the original instructions in French

1
WARNINGS
Read the instrucons in this
manual carefully before using the
device.
Z400iQ MD4, MD5, TD7, TD8 and
TD9 models contain R32.
• Before handling the appliance, it is vital that you read this installaon and user
manual, as well as the “Warranty” booklet delivered with the appliance. Failure
to do so may result in material damage or serious or fatal injury and will void the
warranty.
• Keep and pass on these documents for later viewing throughout the appliance’s
service life.
• The distribuon or modicaon of this document in any way is prohibited, without
prior authorisaon from Zodiac®.
• Zodiac® is constantly developing its products to improve their quality; therefore,
the informaon contained in this document may be modied without noce.
GENERAL WARNINGS
• Failure to respect the warnings may cause serious damage to the pool equipment
or cause serious injury, even death.
• Only a person qualied in the technical elds concerned (electricity,
hydraulics or refrigeraon) is authorised to perform any servicing
or repairs to the appliance. The qualied technician working on the
appliance must use/wear personal protecve equipment (such as safety
goggles and protecve gloves, etc.) in order to reduce the risk of injury
occurring when working on the appliance.
• Before handling the machine, ensure that the power is switched o and isolated
from the power supply.
• The appliance is intended to be used for pools and spas for a specic purpose; it
must not be used for any purpose other than that for which it was designed.
• This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilies, or lack of experience and knowledge, unless
they have been given supervision or instrucon 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.
• This appliance can be used by children aged from 8 years and above and persons
with reduced physical, sensory or mental capabilies or lack of experience and
knowledge if they have been given supervision or instrucon concerning use of
the appliance in a safe way and understand the hazards involved. Children shall
not play with the appliance. Cleaning and user maintenance shall not be made by
children without supervision.
• The appliance must be installed according to the manufacturer’s instrucons and
in compliance with local standards. The installer is responsible for installing the
appliance and for compliance with naonal installaon regulaons. Under no
circumstances may the manufacturer be held liable in the event of failure to comply
with applicable local installaon standards.
• For any work other than the simple user maintenance described in this manual, the
product should be referred to a qualied professional.
• If the appliance suers a malfuncon, do not try to repair it yourself; instead contact
a qualied technician.
• Refer to the warranty condions for details of the permied water balance values
for operang the appliance.
• Deacvang, eliminang or by-passing any of the safety mechanisms integrated
into the appliance shall automacally void the warranty, in addion to the use of
spare parts manufactured by unauthorised third-party manufacturers.
• Do not spray inseccide or any other chemical (inammable or non-inammable)
in the direcon of the appliance, as this may damage the body and cause a re.
• Do not touch the fan or moving parts and do not place any objects or your ngers
in the vicinity of the moving parts during operaon of the appliance. Moving parts
can cause serious injury or even death.

2
WARNINGS ASSOCIATED WITH ELECTRICAL APPLIANCES
• The electrical supply to the appliance must be protected by a 30 mA dierenal
Residual Current protecon Device (RCD), complying with the standards and
regulaons in force in the country in which it is installed.
• For Australia and New-Zealand, this product must be installed and serviced by a
licensed electrician inaccordance with AS/NZ 3000 - latest published/enforced
edion, and any other local regulaons.
• Do not use any extension lead when connecng the appliance; connect the
appliance directly to a suitable power supply circuit.
• Before carrying out any operaons, check that:
- The voltage indicated on the appliance informaon plate corresponds to the
mains voltage.
- The power grid is adapted to the power requirements of the appliance, and is
grounded.
• In the event of anormal operaon or the release of unusual odours from the
appliance, turn it o immediately, unplug it from its power supply and contact a
professional.
• Before any access to the appliance for service or maintenance, ensure that it is
switched o and completely disconnected from the power supply. Furthermore, in
addion to conrming that the heang priority (where applicable) is deacvated,
ensure that any other equipment or accessories connected to the appliance are
also disconnected from the power supply circuit.
• Do not disconnect and reconnect the appliance to the power supply when in
operaon.
• Do not pull on the power cord to disconnect it from the power supply.
• If the power cord is damaged, it must be replaced by the manufacturer, its technician
or a qualied person to guarantee safety.
• Do not perform maintenance or servicing operaons on the appliance with wet
hands or if the appliance is wet.
• Before connecng the appliance to the source of supply, ensure that the terminal
block or supply socket to which the appliance will be connected is in good condion
and is not damaged or corroded in any way.
• For any component or sub-assembly containing a baery: do not recharge or
dismantle the baery, or throw it into a re. Do not expose it to high temperatures
or direct sunlight.
• In stormy weather, disconnect the appliance from the power supply to prevent it
from suering lightning damage.
• Do not immerse the appliance in water or mud.
WARNINGS CONCERNING APPLIANCES CONTAINING REFRIGERANT
• Do not release R32 (Z400iQ MD4, MD5, TD7, TD8 and TD9 models) or R410A (Z400iQ
MD7, MD8 and MD9 models) uid into the atmosphere. These are uorinated
greenhouse gases, covered by the Kyoto Protocol, with a Global Warming Potenal
(GWP) of 675 for R32 or 2088 for R410A - (see EU Regulaon 517/2014 on uorinated
greenhouse gases).
• In order to comply with relevant environmental and installaons standards and
regulaons such as, but not limited to, French decree No. 2015-1790 and/or the EU
Regulaon EU 517/2014, the cooling circuit must be checked for leakage at least
once a year. This operaon must be carried out by a cered cooling appliance
specialist.
WARNINGS CONCERNING APPLIANCES CONTAINING R32 REFRIGERANT (Z400iQ
MD4, MD5, TD7, TD8, TD9)
• This device contains R32 refrigerant, a class A2L refrigerant, which is considered to
be potenally ammable.
• The device must be stored in a venlated place away from all sources of re.
• Install the unit outdoors. Do not install the unit indoors or in an enclosed, non-
venlated area outdoors.
• Do not use means to accelerate the defrosng process or to clean, other than those
recommended by the manufacturer.
EN

3
• The appliance shall be stored in a room without connuously operang ignion
sources (for example: open ames, an operang gas appliance or an operang
electric heater).
• Do not pierce or burn.
• Be aware that refrigerants may not contain an odour.
INSTALLATION AND MAINTENANCE
• The appliance may not be installed close to combusble materials, or an air duct
inlet of an adjacent building.
• With some appliances, it is essenal to t protecon grids if the unit is installed in
an area with uncontrolled access.
• During installaon, troubleshoong and maintenance, pipes may not be used as
steps: the pipe could break under the weight, spilling coolant and possibly causing
serious burns.
• When servicing the appliance, the composion and state of the heat transfer uid
must be checked, as well as the absence of any traces of coolant.
• During the appliance's annual sealing test in accordance with applicable legislaon,
the high and low pressure switches must be checked to ensure that they are
securely fastened to the cooling circuit and that they cut o the electrical circuit
when tripped.
• During maintenance work, ensure there are no traces of corrosion or oil around
the cooling components.
• Before beginning work on the cooling circuit, stop the appliance and wait for a few
minutes before ng the temperature and pressure sensors. Some elements such
as the compressor and piping may reach temperatures in excess of 100°C and high
pressures with the consequent risk of severe burns.
TROUBLESHOOTING
• All soldering work must be carried out by a someone qualied to do so.
• Replacement pipes must always be made of copper in compliance with standard
NF EN 12735-1.
• Leak detecon, pressure test:
- never use oxygen or dry air (risk of re or explosion)
- use dry nitrogen or the mixture of nitrogen and coolant indicated on the
informaon plate,
- the test pressure for both the high and low pressure circuits must not exceed 42
bar (for R410A), 20 bar and 15 bar (for R407C) if the appliance is equipped with
the oponal pressure gauge.
• The high pressure circuit pipes are made of copper and have a diameter equal to or
greater than 1’’5/8. A cercate as indicated in §2.1 in compliance with standard NF
EN 10204 will be requested from the supplier and led with the facility's technical
documentaon.
• Technical data relave to the safety requirements of the various applicable direcves
are indicated on the informaon plate. All this informaon must be recorded in
the appliance's installaon manual, which must be kept in the its technical le:
model, code, serial number, maximum and minimum OT, OP, year of manufacture,
CE marking, manufacturer’s address, coolant and weight, electrical parameters,
thermo-dynamic and acousc performance.
LABELLING
• Equipment shall be labelled stang that it has been decommissioned and emped
of refrigerant.
• The label shall be dated and signed.
• For appliances containing ammable refrigerants, ensure that there are labels on
the equipment stang the equipment contains ammable refrigerant.
RECOVERING
• When removing refrigerant from a system. either for servicing or decommissioning,

4
it is recommended good pracce that all refrigerants are removed safely.
• When transferring refrigerant into cylinders, ensure that only appropriate
refrigerant recovery cylinders are employed. Ensure that the correct number of
cylinders for holding the total system charge is available. All cylinders to be used
are designated for the recovered refrigerant and labelled for that refrigerant (i.e.
special cylinders for the recovery of refrigerant). Cylinders shall be complete with
pressure-relief valve and associated shut-o valves in good working order. Empty
recovery cylinders are evacuated and. if possible. cooled before recovery occurs.
• The recovery equipment shall be in good working order with a set of instrucons
concerning the equipment that is at hand and shall be suitable for the recovery
of all appropriate refrigerants including, when applicable, ammable refrigerants.
In addion, a set of calibrated weighing scales shall be available and in good
working order. Hoses shall be complete with leak-free disconnect couplings and in
good condion. Before using the recovery machine, check that it is in sasfactory
working order, has been properly maintained and that any associated electrical
components are sealed to prevent ignion in the event of a refrigerant release.
Consult manufacturer it in doubt.
• The recovered refrigerant shall be returned to the refrigerant supplier in the
correct recovery cylinder, and the relevant waste transfer note arranged. Do not
mix refrigerants in recovery units and especially not in cylinders.
• If compressors or compressor oils are to be removed. ensure that they have been
evacuated to an acceptable level to make certain that ammable refrigerant does
not remain within the lubricant. The evacuaon process shall be carried out prior to
returning the compressor to the suppliers. Only electric heang to the compressor
body shall be employed to accelerate this process. When all is drained from a
system, it shall be carried out safely.
Recycling
This symbol is required by European Community Direcve 2012/19/UE on WEEE (Waste Electrical and
Electronic Equipment) and means that your appliance must not be thrown into a normal bin. It will be
selecvely collected for the purpose of reuse, recycling or transformaon. Any substances it may contain
which are potenally dangerous to the environment shall be eliminated or neutralised. Request informaon
on recycling procedures from your retailer.
EN

5
CONTENTS
❶ Installaon 6
1.1 I Selecng the locaon 6
1.2 I Hydraulic connecons 8
1.3 I Accessing the electrical connecon terminal boards 9
1.4 I Power connecons 9
1.5 I Connecng opons 10
❷ Use 11
2.1 I Operang principle 11
2.2 I User interface presentaon 11
2.3 I Operaon 12
2.4 I User funcons 13
2.5 I Connecon to the iAquaLink™ app 14
❸ Maintenance 15
3.1 I Winterizing 15
3.2 I Maintenance 15
❹ Troubleshoong 18
4.1 I Appliance behaviour 18
4.2 I Error code display 19
4.3 I Lighng of LEDs on the printed circuit board 20
4.4 I Wiring diagrams 20
❺ Characteriscs 21
5.1 I Descripon 21
5.2 I Technical specicaons 22
5.3 I Dimensions and marking 23
Tip: to make it easier to contact your retailer
• Write down your retailer's contact details to help you nd them more easily and ll in the "product"
informaon on the back of the manual; your retailer will ask you for this informaon.

6
❶ Installaon
1.1 I Selecng the locaon
• The appliance must be installed at 2 metres, minimum, from the surrounding edge of the
pool.
• Do not li the appliance by the body; use straps (not provided, see § “1.1.1 I Seng up the
device“).
• Exercice care during handling of the device. The evaporator (marking in § “5.3 I Dimensions
and marking“) can be easily damaged.
• The evaporator (marking in § “5.3 I Dimensions and marking“) may contain
sharp edges which can cause injury.
In order to prevent any injury, wear protecve gloves during servicing
operaons which may involve contact with the evaporator.
• Only an outdoor installaon is possible, provide free space around the appliance according to diagram § ‘’1.2 I
Hydraulic connecons’’.
• Place the appliance on its an-vibraon blocks (integrated under its base, height adjustable) on a stable, solid and
level surface,
• This surface must be able to bear the weight (voir § 5.2 I “Technical specicaons”) of the appliance (in parcular in
the case of installaon on a roof, a balcony or any other support).
: front
: rear
: connecons
: An-vibraon blocks
View of the appliance base from below for installing the an-vibraon blocks
(MD4 / MD5 / MD7 / TD7 models)
View of the appliance base from below for installing the an-vibraon blocks
(MD8 / TD8 / MD9 / TD9 models)
The appliance must not be installed:
• With the blowing towards a permanent or temporary obstacle (awning, brushwood, etc.) less than 5 metres away,
• Within range of water or mud jets, sprays or run-o (take the eect of the wind into account),
• Near a heat source or ammable gas,
• Near high-frequency equipment,
• In a locaon where it would be subject to snow build-up,
• In a locaon where it might be ooded by the condensates produced by the appliance when operang.
EN

7
Tip: reduce any noise annoyance from your heat pump
• Do not install it under or towards a window.
• Do not lt it towards your neighbours.
• Install it in an open space (sound waves are reected on surfaces).
• Install an acousc screen around the heat pump, respecng the distances (see diagram § «1.2 I Hydraulic
connecons»).
• Install 50 cm of exible PVC pipe at the heat pump water inlet and outlet to absorb vibraons.
• Increase the ltraon me by 50% and acvate "silence" mode. The heat pump will run for longer
with less power, but much more quietly and with an improved COP (energy savings). «Silence» mode is
parcularly well suited for maintaining the water temperature once the setpoint temperature has been
reached.
1.1.1 Seng up the device
• Use straps (not supplied) to li the device to prevent damage during installaon.
: Strap

8
1.2 I Hydraulic connecons
• The device will be connected with a Ø50 PVC pipe, using the half union connectors supplied (see § ‘’5.1 I Descripon’’),
to the pool's ltraon circuit, aer the lter and before the water treatment.
• Respect the direcon of hydraulic connecon.
• A by-pass must be installed to make it easier to work on the appliance.
: water inlet valve
: by-pass valve
: water outlet valve
: water inlet adjustment valve
(oponal)
: water outlet adjustment valve
(oponal)
: water treatment
* minimum distance
• To evacuate the condensates, t a Ø18 pipe on the grooved elbow mounted under the appliance base.
• The elbow can be oriented at an angle of 280° beneath the appliance.
Condensate drainage elbow (view of the device from below)
Tip: condensate drainage
Cauon, several litres of water can be drained from your appliance each day. We strongly recommend
connecng the drain to a suitable water drainage system.
EN

9
1.3 I Accessing the electrical connecon terminal boards
Unscrew the 2 screws Slide the door downwards
1.4 I Power connecons
• Before any work inside the appliance, you must cut the electricity supply to the appliance
as there is a risk of electric shock which may cause material damage, serious injury or even
death.
• Incorrectly ghtened terminals may cause the terminal box to heat up, which can invalidate
the warranty.
• Only a qualied and experienced technician is authorised to carry out cabling work within the
appliance or to replace the power cord.
• The installer must consult the electricity provided if necessary and ensure that the equipment
is connected correctly to an electricity network with impedance under 0.095 ohm.
• The heat pump's electrical supply must be provided through a protecon and circuit breaking device (not supplied)
complying with the standards and regulaons in force in the country where it is installed,
• The appliance is provided for connecon to a general power supply with a TT or TN.S neutral regime.
• Electrical protecon: by circuit breaker (D curve, rang to be dened according to the table § ‘’5.2 I Technical
specicaons’’), with a suitable dedicated dierenal protecon device (circuit breaker or switch).
• Addional protecon may be required during installaon to guarantee the II overvoltage category.
• The power supply must correspond to the voltage indicated on the appliance's informaon plate.
• The power cord must be insulated against any cung or hot elements that may damage or crush it.
• The appliance must be connected to an earth socket.
• The electrical connecon lines must be xed.
• Use the gland to pass the power cord into the appliance.
• Use the power cord (RO2V type) adapted for outdoor or buried use (or run the cable into a protecon duct) with an
external diameter of between 9 and 18mm.
• We recommend burying the cable at a depth of 50 cl (85 cm under a road or path) in an electrical duct (red ribbed).
• If this buried cable meets another cable or pipe (gas, water, etc.), there must be more than 20 cm between them.
• Connect the power supply cord to the spring-cage terminal block (see § «1.4.1 I Wiring on a spring-cage terminal
block») inside the appliance.
1.4.1 Wiring on a spring-cage terminal block
• Pull the lever to the maximum, then connect the cable(s) (see picture ❶).
• Return the lever to its original posion (see image ❷).
❶ ❷

10
1.5 I Connecng opons
Connecng the "Heang priority" and "On/o command" opons:
• Before any work inside the appliance, you must cut the electricity supply to the appliance
as there is a risk of electric shock which may cause material damage, serious injury or even
death.
• There is a risk of electrical return current, injuries, material damage and death when working
on terminals 1 to 8.
• Any connecon error with terminals 1 to 8 may damage the appliance and invalidated its
warranty.
• Terminals 1 to 8 are dedicated to the opons and must never be used to directly supply other
equipment.
• Use cables with a secon of at least 2x0.75 mm², RO2V type and with a diameter between 8
and 13 mm.
Before connecng any opons: remove the seal (above the cable gland) and install the cable gland provided in order to
pass the cables into the appliance. The cables used for the opons and the power cord must be kept separate (risk of
interference) using a collar inside the appliance just aer the glands.
1.5.1 "Heang priority" opon
• This funcon helps to keep the water temperature constant by checking the water temperature at regular me
intervals (minimum 5 minute cycle every 120 minutes) by ltraon pump control. The ltraon is kept operang if
the pool temperature is below the temperature requested.
• For the connecon, connect the ltraon mer to terminals 1 and 2 (dry contact, no polarity, maximum intensity 8A).
1
2
1- 2: power for the ltraon pump power contactor coil
: ltraon mer
: power contactor (tripolar or bipolar) for the ltraon system pump motor
: separate cable for the "heang priority" funcon
: heat pump terminal board
: fuse
1.5.2 Remote "on/o" control opon
• This opon enables the "on/o" buon funcon to be transferred via a switch or a home automaon system installed
remotely.
• For the connecon, remove the shunt between terminals 7-8 and connect the wire of the switch in place (potenal
free contact, no polarity, 220-240V ~ 50Hz).
: heat pump terminal board
: remote "on/o" switch
: separate connecon wire
EN

11
❷ Use
2.1 I Operang principle
2.1.1 General operaon
Your heat pump uses the calories (heat) in the air to heat up your pool's water. The process to heat your pool's water to
the temperature you want may take a few days as it depends on the weather condions, your heat pump's power and
the dierence between the water temperature and the temperature you want.
The warmer and damper the air, the beer your heat pump will perform. The outdoor parameters for opmum operaon
are an air temperature of 27°C, a water temperature of 27°C and 80% relave humidity.
Tip: improve your pool's temperature rise and maintenance
• Ancipate the commissioning of your pool far enough in advance before you use it.
• For the temperature rise, set the water circulaon to connuous operaon (24/24).
• To maintain the temperature throughout the season, run "automac" circulaon for at least 12 hours/
day (the longer this me the longer the heat pump will have enough operang range to heat up).
• Cover the pool with a sheet (bubble canopy, canvas, etc.) to prevent heat loss.
• The heat pump will be even more ecient if it operates during the warmest hours of the day.
• Keep the evaporator clean.
• Set the temperature you want and let the heat pump run (adjusng the setpoint to maximum will not
heat the water more quickly).
• Connect the "Heang priority"; the ltraon pump and heat pump operang me will be set according
to requirements.
2.1.2 Operang modes (default sengs)
: External air temperature
: Heat pump shutdown, outside of operang range
: Forced "Boost" mode
: Possibility of selecng the "Boost" or "Silence" operang mode
: Forced "Silence" mode
* depending on model, see § «5.2 I Technical specicaons» page 26.
2.2 I User interface presentaon
• To lock or to unlock the keypad: simultaneously press and for 3 seconds.
2.2.1 Presentaon of the display screen and funcon keys
Actual water temperature*
*Displays the temperature measured during the last operaon of the heat pump.
"On/o" buon
Go back in the menus
Change sengs buon
Acvate/deacvate "Silence" mode
Value seng buons

12
2.2.2 Descripon of the display screen
Symbol Name Steady Flashing O
Water ow Water ow okay Water ow too low or
missing Appliance switched o
Air temperature / Air temperature out of
operang range Air temperature in the operang range
“Cold” mode “Cold" mode acvated /"Cold" mode
desacvated
"Silence" mode "Silence" mode
acvated /"Silence" mode desacvated
Wi-Fi Wi-Fi connected Wi-Fi pairing in
progress Wi-Fi not connected
2.2.3 Descripon of the LEDs showing the «appliance status»
LED Appliance status Meaning
Steady green OK Temperature reached or operaon in "hot" mode
Steady blue OK Operaon in "cold" mode
Steady red Error in progress Error in progress, see error message on the interface and meaning
(see § ‘’4.2 I Error code display’’)
Flashing red Stopped
The appliance shuts down aer more than 4 errors in one hour and
requires a manual restart aer correcng the error (see § ‘’4.2 I Error
code display’’)
O Stopped Device o or not connected to the power supply
2.3 I Operaon
• Check that there are no tools or other foreign objects in the machine.
• The panel that provides access to the technical secon (see § «5.3 I Dimensions and marking») must be put back in
place.
• Set the valves as follows: valve B wide open, valves A, C, D and E closed.
: water inlet valve
: by-pass valve
: water outlet valve
: water inlet adjustment valve (oponal)
: water outlet adjustment valve (oponal)
• An incorrect by-pass seng may cause the heat pump to malfuncon.
• Check that the hydraulic connecons are correctly ghtened and that there are no leaks.
• Check that the appliance is stable.
• Turn on the water ow (by acvang ltraon).
• Close valve B gradually so that the lter pressure is increased by 150g (0.150 bars).
• Open valves A, C and D fully then valve E by half (the air which has built up in the heat pump condenser and the
ltraon circuit will bleed out). If valves D and E are not present, open valve A wide and close valve C by half.
• Connect the power supply to the heat pump.
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13
• The heat pump is on standby
• Press for 2 seconds: (soware version vary depending on the appliances) is displayed for 4 seconds,
the last water temperature measured is then displayed .
This value varies depending on the last temperature recorded during the last connecon.
If no water ow was present during the last connecon, the screen will display the value .
• Set the desired temperature (called the "temperature setpoint" ) (see § ‘’2.4.2 Adjusng the temperature setpoint’’).
Aer the start-up steps for your heat pump:
• Shut down the water circulaon temporarily (by stopping the ltraon or closing valve B or C) to check that you
appliance stops aer a few seconds (via the acvaon of the ow switch).
• Reduce the setpoint temperature to below the water temperature to check that the heat pump stops operang.
• Switch o the heat pump by pressing and holding for 2 seconds and check that it stops.
2.4 I User funcons
2.4.1 Locking/unlocking the keyboard
To lock or to unlock the keypad, press and hold and simultaneously for 3 seconds: or .
2.4.2 Adjusng the temperature setpoint
• Press or : the temperature setpoint is displayed and ashes,
• Press to increase the temperature by 0.5 °C*,
• Press to reduce the temperature by 0.5 °C**.
• Press to conrm the desired setpoint temperature.
• The sengs screen is automacally exited aer 3 seconds of inacvity on the keypad or by pressing and releasing .
The heat pump stops automacally when the pool reaches the required temperature.
*Maximum setpoint temperature = 32 °C.
**Minimum setpoint temperature = 15 °C.
If the setpoint temperature has not been conrmed by pressing , it will not be saved if the interface
returns to the home screen (which takes place automacally aer 3 seconds of inacvity on the keypad or
by pressing and releasing ).
2.4.3 Acvang/deacvang “silence” mode
«Silence» mode is used to reduce the noise level emied by the heat pump.
The appliance will operate for a longer period of me with less power, however with a lower noise level.
There are 2 ways to acvate the “Silence” mode:
1st method
• Press and release , the symbol will light up.
2nd method
• Press and hold
• Press or to display: .
• Press and release , the symbol will light up.
• The home screen automacally reappears aer 60 seconds of inacvity on the keypad or by pressing and releasing .
To deacvate the “Silence” mode, redo the manipulaon, the symbol will go out.

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2.4.4 Acvang/deacvang “cold" mode
Acvaon of «Cold» mode allows the machine’s cycle to be automacally reversed to cool the pool water when it
exceeds the setpoint temperature by more than 2°C.
• Press and hold
• Press or to display :
• Press and release , the symbol will light up.
• The home screen automacally reappears aer 60 seconds of inacvity on the keypad or by pressing and releasing .
To deacvate the “cold/cooling” mode, redo the manipulaon, the symbol will go out.
«Cold» mode does not allow cooling to be acvated manually.
For immediate acvaon, acvate «Cold» mode then return to the main screen and lower the setpoint
temperature to at least 2 degrees below the measured water temperature.
2.5 I Connecon to the iAquaLink™ app
The Z400iQ heat pump may be controlled by remote, from a smartphone or tablet, via the iAquaLink™ app available for
iOS and Android systems.
Before you install the app, you must:
• Use a smartphone or tablet connected to Wi-Fi.
• Use a Wi-Fi network with a reasonably powerful signal when connecng to the heat pump.
• Have your home Wi-Fi network password at the ready.
❶. Download the iAquaLink™ app from the App Store (iOS) or Google Play Store (Android) then create an iAquaLink™
account (if the app is already installed, move onto the next step).
❷. Open the app then add the heat pump to the list of appliances, following the steps described on the smartphone
or tablet.
• For the rst step (pairing), stay near the appliance.
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❸ Maintenance
3.1 I Winterizing
• Although the device may be used year around, in the event that it will not be used during the
winter months, proper winterizing is necessary in order to prevent damage to the condenser.
Damage due to failure to properly winterize the unit when it is not use is not covered by the
warranty.
• To prevent condensaon from damaging the appliance: cover the appliance with the
winterising cover supplied (do not hermecally-seal the appliance inside a cover).
• Set the regulator to "standby" mode by pressing and holding for 2 seconds and disconnect the power supply,
• Open valve B,
• Close valves A and C and open valves D and E (if present),
• Make sure that there is no water circulang in the heat pump,
• Drain the water from the condenser (risk of freezing) by unscrewing the two water inlet and outlet connectors on the
back of the heat pump,
• In the case of full winterizing for the pool (complete shutdown of the ltraon system, bleed the ltraon circuit
or even pool drainage): ghten the two connectors by one turn to prevent any foreign bodies from geng into the
condenser,
• In the case of winterizing for the heat pump only (shutdown of the heang only, the ltraon keeps running): to not
ghten the connectors but add 2 caps (provided) on the condenser's water inlets and outlets.
• We recommend that you put the aired winterizing micro cover (provided) on the heat pump.
3.2 I Maintenance
• Before performing any maintenance operaon on the appliance, you must cut the electricity
supply as there is a risk of electric shock which may cause material damage, serious injury or
even death.
• It is recommended that the appliance undergo general servicing at least on a yearly basis
to ensure proper operaon, maintain performance levels and potenally prevent certain
failures. These operaons are carried out at the user's expense by a qualied technician.
3.2.1 Safety instrucons concerning appliances containing R32 refrigerant (Z400iQ MD4, MD5, TD7, TD8,
TD9 models)
Area check
• Prior to beginning work on systems containing ammable refrigerants, safety checks are necessary to ensure that the
risk of ignion is minimised.
Work procedure
• Work shall be undertaken under a controlled procedure so as to minimise the risk of a ammable gas or vapour being
present while the work is being performed.
General work area
• AIl maintenance sta and others working in the local area shall be instructed on the nature of work being carried out.
Work in conned spaces shall be avoided.
Check for the presence of refrigerant
• The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician
is aware of potenally toxic or ammable atmospheres. Ensure that the leak detecon equipment being used is
suitable for use with all applicable refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe.
Check for the presence of a re exnguisher
• If any work involving heat is to be conducted on the refrigerang equipment or any associated parts, appropriate
re exnguishing equipment shall be available to hand. Have a dry powder or CO2, re exnguisher adjacent to the
charging area.
No source of ignion
• No person carrying out work in relaon to a refrigerang system which involves exposing any pipe work shall use
any sources of ignion in such a manner that it may lead to the risk of re or explosion. All possible ignion sources,
including cigaree smoking, should be kept suciently far away from the site of installaon, repairing, removing and
disposal, during which refrigerant can possibly be released to the surrounding space. Prior to work taking place, the
area around the equipment is to be surveyed to make sure that there are no ammable hazards or ignion risks. «No
Smoking» signs shall be displayed.

16
Area venlaon
• Prior to penetrang the unit in any way to perform any required service, ensure that the area is open and adequately
venlated. Proper venlaon, to allow for safe dispersion of any refrigerant which may be inadvertently released to
the atmosphere, should be maintained while service is being performed on the unit.
Refrigeraon equipment check
• The manufacturer’s service and maintenance guidelines must be followed at all mes. When replacing any electrical
components, be sure to use only components which are of the same type and rang and which are recommended/
approved by the manufacturer. If in doubt, consult the manufacturer’s technical department for assistance.
• The following checks shall be applied to installaons using ammable refrigerants:
- if an indirect refrigerang circuit is being used, the secondary circuit shall be checked for the presence of refrigerant;
- Marking to the equipment connues to be visible and legible. Markings and signs that are illegible shall be corrected;
- refrigerang pipe or components are installed in a posion where they are unlikely to be exposed to any substance
which may corrode refrigerant containing components, unless the components are constructed of materials which
are inherently resistant to being corroded or are suitably protected against being so corroded.
Electrical component check
• Repair and maintenance to electrical components shall include inial safety checks and component inspecon
procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit
unl it is sasfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to connue operaon,
an adequate temporary soluon shall be used. This shall be reported to the owner of the equipment so all pares
are advised.
• Inial safety checks shall include:
- that capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking;
- that no live electrical components and wiring are exposed while charging, recovering or purging the system;
- that there is connuity of earth bonding.
Repair of insulated components
• During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked
upon prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical supply to equipment
during servicing, then a permanently operang form of leak detecon shall be located at the most crical point to
warn of a potenally hazardous situaon.
• Parcular aenon shall be paid to the following to ensure that by working on electrical components, the casing
is not altered in such a way that the level of protecon is aected. This shall include damage to cables, excessive
number of connecons, terminals not made to original specicaon, damage to seals, incorrect ng of glands, etc.
• Ensure that the apparatus is mounted securely.
• Ensure that seals or sealing materials have not degraded to the point that they no longer serve the purpose of
prevenng the ingress of ammable atmospheres. Replacement parts shall be in accordance with the manufacturer’s
specicaons.
Repair of intrinsically safe components
• Do not apply any permanent inducve or capacitance loads to the circuit without ensuring that this will not exceed
the permissible voltage and current permied for the equipment in use.
• Intrinsically safe components are the only types that can be worked on while live in the presence of a ammable
atmosphere. The test apparatus shall be at the correct rang.
• Replace components only with parts specied by the manufacturer. Other parts may result in the ignion of refrigerant
in the atmosphere from a leak.
Wiring
• Check that cabling will not be subject to wear, corrosion, excessive pressure, vibraon, sharp edges or any other
adverse environmental eects. The check shall also take into account the eects of aging or connual vibraon from
sources such as compressors or fans.
Detecon of ammable refrigerant
• Under no circumstances shall potenal sources of ignion be used in the searching for or detecon of refrigerant
leaks. A halide torch (or any other detector using a naked ame) shall not be used.
• The following leak detecon methods are deemed acceptable for all refrigerant systems.
• Electronic leak detectors may be used to detect refrigerant leaks but, in the ease of ammable refrigerants, the
sensivity may not be adequate, or may need re-calibraon. (Detecon equipment shall be calibrated in a refrigerant-
tree area.) Ensure that the detector is not a potenal source of ignion and is suitable for the refrigerant used. Leak
detecon equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant
employed, and the appropriate percentage of gas (25% maximum} is conrmed.
• Leak detecon uids are also suitable for use with most refrigerants but the use of detergents containing chlorine
shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work.
• If a leak is suspected, all naked names shall be removed/exnguished.
• If a leakage of refrigerant is found which requires brazing. all of the refrigerant shall be recovered from the system. or
isolated (by means of shut o valves} in a part of the system remote from the leak.
Removal and discharge
• When breaking into the refrigerant circuit to make repairs - or for any other purpose - convenonal procedures shall
be used. However, for ammable refrigerants it is important that best pracce is followed since ammability Is a
consideraon. The following procedure shall be adhered to:
- remove refrigerant;
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17
- purge the circuit with inert gas (oponal for A2L);
- evacuate (oponal for A2L);
- purge with inert gas (oponal for A2L);
- open the circuit by cung or brazing.
• The refrigerant charge shall be recovered into the correct recovery cylinders. For appliances containing ammable
refrigerants other than A2L refrigerants, the system shall be purged with oxygen-free nitrogen to render the appliance
safe for ammable refrigerants. This process may need to be repeated several mes. Compressed air or oxygen shall
not be used for purging refrigerant systems.
Loading procedures
• Ensure that the outlet tor the vacuum pump is not close to any potenal ignion sources and that venlaon is
available.
• In addion to convenonal charging procedures, the following requirements shall be followed.
- Ensure that contaminaon of dierent refrigerants does not occur when using charging equipment. Hoses or lines
shall be as short as possible to minimise the amount of refrigerant contained in them.
- Cylinders shall be kept in an appropriate posion according to the instrucons.
- Ensure that the refrigerang system is earthed prior to charging the system with refrigerant.
- Label the system when charging is complete (if not already).
- Extreme care shall be taken not to overll the refrigerang system.
• Prior to recharging the system, it shall be pressure-tested with the appropriate purging gas. The system shall be leak-
tested on compleon of charging but prior to commissioning. A follow up leak test shall be carried out prior to leaving
the site.
Dismantling
• Before carrying out this procedure, it is essenal that the technician is completely familiar with the equipment and
all its detail. It is recommended good pracce that all refrigerants are recovered safely. Prior to the task being carried
out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of recovered refrigerant. It
is essenal that electrical power is available before the task is commenced.
1. Become familiar with the equipment and its operaon.
2. Isolate system electrically.
3. Before aempng the procedure, ensure that:
- mechanical handling equipment is available. if required. for handling refrigerant cylinders;
- all personal protecve equipment is available and being used correctly:
- the recovery process is supervised at all mes by a competent person;
- recovery equipment and cylinders conform to the appropriate standards.
4. Pump down refrigerant system, if possible.
5. If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system
6. Make sure that cylinder is situated on the scales before recovery takes place.
7. Start the recovery machine and operate in accordance with instrucons.
8. Do not overll cylinders (no more than 80 % volume liquid charge).
9. Do not exceed the maximum working pressure of the cylinder, even temporarily.
10. When the cylinders have been lled correctly and the process completed, make sure that the cylinders and the
equipment are removed from site promptly and alt isolaon valves on the equipment are closed o.
11. Recovered refrigerant shall not be charged into another refrigerang system unless it has been cleaned and checked.
3.2.2 User maintenance
• Make sure that the venlaon grid is not blocked by any foreign bodies.
• Clean the evaporator (for locaon see § ‘’5.3 I Dimensions and marking’’) using a so brush and a fresh water spray
(disconnect the power cable); do not fold over the metal wings, then clean the condensate drainage line to remove
any impuries that may be blocking it.
• Do not use a high pressure jet. Do not spray with rain water, salt water or water which is full of minerals.
• Clean the outside of the appliance using a solvent-free product; a specic «PAC NET» cleaning kit is available as an
accessory in the Zodiac catalogue for this purpose (see § ‘’5.1 I Descripon’’).
3.2.3 Maintenance to be carried out by a qualied technician
• For Z400iQ MD4, MD5, TD7, TD8 and TD9 models, please read the safety instrucons before
performing any of the maintenance operaons described below, see ‘’3.2.1 Safety instrucons
concerning appliances containing R32 refrigerant (Z400iQ MD4, MD5, TD7, TD8, TD9 models)’’
• Check that the control system is operang correctly.
• Check that the condensates ow correctly when the appliance is in operaon.
• Check the safety mechanisms.
• Check the connecon of the metal masses to the earth.
• Check that the electrical cables are correctly ghtened and connected and that the switch box is clean.

18
❹ Troubleshoong
• If a problem occurs, before you contact your retailer, please carry out these few simple checks
using the following tables.
• If the problem connues, contact your retailer.
• : Acons to be performed by a qualied technician only
4.1 I Appliance behaviour
The appliance
does not start
heang straight
away
• When the setpoint temperature is reached, the heat pump stops heang: the water temperature
is higher than or equal to the setpoint temperature.
• When the water ow rate is zero or is not enough, the heat pump stops: check that the water is
circulang correctly in the heat pump (see § ‘’2.2 I User interface presentaon’’) and that the
hydraulic connecons are correct.
• The heat pump stops when the outdoor temperature falls below -12 °C.
• It may be that the heat pump has detected an operang fault (see § ‘’4.2 I Error code display’’).
• If you have checked these points and the problem persists: contact your retailer.
The appliance
is discharging
water
• Oen called condensates. This water is the moisture contained in the air which condenses
on contact with certain cold mechanisms in the heat pump, especially on the evaporator. The
damper the air, the more condensates your heat pump will produce (your appliance may drain
several litres of water per day). This water is retrieved by the base of the heat pump and drained
by the condensate drainage elbow (see § ‘’1.2 I Hydraulic connecons’’).
• To check that the water is not coming from a leak in the pool circuit on the heat pump, shut
down the heat pump and run the ltraon pump for the water to circulate in the heat pump. If
the water connues to ow through the condensate drainage lines, there is a water leak in the
heat pump; contact your retailer.
The evaporator is
iced over
• Your heat pump will soon switch to its defrost cycle to melt the ice.
• If your heat pump cannot manage to defrost its evaporator, it will stop itself; this means that the
outdoor temperature is too low (below -12 °C).
The appliance is
"smoking"
• The machine has come to the end of the defrost cycle; water has changed to gaseous state and
passes through the grid.
• If your heat pump is not in its defrost cycle, this is not normal. Switch o and disconnect the
heat pump immediately and contact your retailer.
The appliance is
not working
• If there is no display, check the supply voltage and the F2 fuse.
• When the setpoint temperature is reached, the heat pump stops heang: the water temperature
is higher than or equal to the setpoint temperature.
• When the water ow rate is zero or is not enough, the heat pump stops: check that the water is
circulang correctly in the heat pump (see § ‘’2.2 I User interface presentaon’’).
• The heat pump stops when the outdoor temperature falls below -12 °C or rises above +40 °C.
• It may be that the heat pump has detected an operang fault (see § ‘’4.2 I Error code display’’).
The appliance
is working
but the water
temperature
does not increase
• Check that the automac water lling controller (see diagram in § «2.3 I Operaon») is not
stuck in the open posion: this will keep supplying cold water into the pool and will prevent the
temperature from rising.
• There is too much heat loss. Install a heat insulated cover on your pool.
• The heat pump is unable to capture enough calories as its evaporator is clogged with dirt. Clean
it to restore its performances (see § ‘’3.2 I Maintenance’’).
• Check that the external environment is not hindering the heat pump (see § ‘’❶ Installaon’’).
• Check that the heat pump is the right size for this pool and its environment.
The fan is
running but
the compressor
stops from me
to me with no
error message
• If the outdoor temperature is low, the heat pump performs defrost cycles under normal
operaon.
• The heat pump is unable to capture enough calories as its evaporator is clogged with dirt. Clean
it to restore its performances (see § ‘’3.2 I Maintenance’’).
The appliance
trips the circuit
breaker
• Check that the circuit breaker is correctly dimensioned and that the cable secon used is
appropriate (see § ‘’5.2 I Technical specicaons’’).
• The supply voltage is too low: contact your electricity supplier.
EN