Atlantic ODYSSEO 2 Mounting instructions

WARRANTY CERTIFICATE
TO BE KEPT BY THE USER OF THE APPLIANCE
ODYSSEO 2
HEAT PUMP WATER HEATER USING NON-HEATED AIR
Duration of the warranty*
- Water heater (cylinder): 5 years in domestic installations
3 years in commercial installation
- Electric elements and components parts: 2 years in domestic installations
1 year in commercial installations
The warranty covering service items, or replacement unit, expires at the end of the original
purchase warranty period.
* see details about warranty conditions and exclusions inside the user manual
FOR INFORMATION, REPAIRS AND SERVICE
CALL: AUSTRALIA : 1800 677 857
NEW ZEALAND : 0800 422 000
FOR WARRANTY REGISTRATION:
REGISTER AT: AUSTRALIA - www.atlantics.com.au
NEW ZEALAND - www.atlantics.co.nz
MAINTENANCE AND USER MANUAL - WARRANTY
ODYSSEO 2
HEAT PUMP WATER HEATER USING NON-HEATED AIR
EN
GUIDE
TO BE KEPT
BY THE USER

Active – brown
Neutral –blue
WIRING DIAGRAM
STARTING YOUR
HEAT PUMP
WATER HEATER
In order to protect the tank against corrosion,
the water heater must remain switched on at all times.
The wires in the electric cable are crimped. If you need to cut them, remember to crimp
them again before connecting to the electric power supply.
Electric
panel
FOR TIME CLOCK CONTROL - TIME OF USE TARIFF:
240 volt supply with 2 amp protection connected to the black auxiliary wire and the time clock programmed
in accordance with the time of use tariff hours. Set HCHP parameter to ON, see page 15 setting the regulation.
FOR ACI PROTECTION:
The HPWH must remain connected to the permanent power supply at all times so that the operation of the
(ACI) anti-corrosion protection of the water heater is ensured.
For more information
Please refer to the «Electric connections» and «Getting started» chapters in this manual.
WIRING DIAGRAM
MAINTAINING YOUR
HEAT PUMP
WATER HEATER
1Permanent power supply
2Off-peak hours cable
3Regulation
4Incoming air sensor
5Evaporator sensor
6Pocket sensor
7Anti-corrosion protection
81,800W steatite backup
9Pocket
10 Mechanical safety device
11 Hot gas solenoid
12 Compressor condenser
13 Compressor
14 Low-speed condenser
15 Fan
16 Fan condenser
17 Safety pressure switch
18 Safety horn
19 Heat pump shells

- 1 -
Contents
Important recommendations.......................................................................................................2
Transportation & Storage...................................................................................................................... 2
Safety instructions................................................................................................................................. 2
Presentation of the product ........................................................................................................ 3
How it works ........................................................................................................................................... 3
Technical characteristics ...................................................................................................................... 4
Dimensions / components .................................................................................................................... 5
Installation.................................................................................................................................... 6
Selecting the location............................................................................................................................ 6
Installing the product............................................................................................................................. 9
Hydraulic connection............................................................................................................................. 9
Air connections.................................................................................................................................... 11
Electric connections............................................................................................................................ 12
Getting started...................................................................................................................................... 14
Use............................................................................................................................................... 16
Control panel........................................................................................................................................ 16
Description of the pictograms:........................................................................................................... 16
Description of the modes.................................................................................................................... 17
Adapting the mode of your appliance to your needs....................................................................... 19
Recommendations – Maintenance & Repairs ......................................................................... 20
Advice for users................................................................................................................................... 20
Domestic maintenance........................................................................................................................ 20
Maintenance by a qualified professional........................................................................................... 21
Troubleshooting .................................................................................................................................. 22
Fault diagnosis for professionals....................................................................................................... 23
After-sales............................................................................................................................................. 25
Warranty Conditions............................................................................................................................ 26
Warranty Exclusions............................................................................................................................ 26
Good, compliant installation Guidelines : Atlantics Europe :......................................................... 27
Document reference : 112 30 618 C Controlled : Mars 2012

- 2 -
Important recommendations
Transportation & Storage
The product can be inclined at 90° on one side. This side is clearly shown by a sign on
the packaging. It is forbidden to incline the product on the other sides. An indicator
shows whether the product has been transported and handled according to our
recommendations. You are advised to make sure that these recommendations are
followed. If the inclination indicator is red, our warranty is null and void. We cannot
be held liable for any faults in the product resulting from transporting or handling the
product in a manner that does not comply with our recommendations.
It is strictly forbidden to stack this product.
Acceptable positions Forbidden positions
Safety instructions
Installing and starting up heat pump water heaters may be hazardous due to high pressure and live parts.
The heat pump water heater must be installed, started up and maintained by trained and qualified
personnel only.
This device is not intended for use by persons (including children) with physical, sensory or mental
disability, or by persons lacking experience or knowledge, unless they have received from a person in
charge of their safety adequate supervision or preliminary instructions on how to use the device. Care must
be taken at all times to keep children from playing with the device.

- 3 -
Presentation of the product
How it works
The heat pump water heater uses unheated air to prepare domestic hot water.
Heat energy extracted from the ambient air is absorbed by the refrigerant through heat transfer at the
Evaporator. This energy is concentrated by the Compressor and then transferred by the Condenser into
the hot water tank. This cycle is repeated after the refrigerant has cooled. A low energy fan ensures
ambient air movement across the Evaporator.
The air is propelled through the appliance
by a fan, which ventilates the various parts,
including the evaporator.
As it passes through the evaporator, the
coolant evaporates and absorbs calories
from the incoming air.
The compressor compresses the coolant,
thereby increasing its temperature.
This heat is transferred to the domestic
water in the tank by the condenser.
The coolant expands in the thermostatic
expansion valve and cools down. It is then
ready to absorb heat again in the
evaporator.
The colder the air, the more difficult it is to extract the calories. Similarly, the higher the hot water setting,
the more difficult it is for the heat pump to transfer the extracted calories.
Compressor
Evaporator Condenser
Expansion valve
Tank
A
IR

- 4 -
Technical characteristics
Dimensions mm H 1897 x l 591 x D 674
Empty weight kg 90
Capacity of the tank L 270
Hot water / cold water connection 3/4 ’ ’ M
Corrosion-proof protection Impressed current anode
Minimum conductivity of the water μS/cm 40
Rated pressure
Permissive excessive operating pressure kPa Mpa 560 1
Electric connection (voltage / frequency) 240 V single phase 50 Hz
Maximum total power input of the appliance W 2635
Average power input of the heat pump W 425
Maximum power input of the heat pump W 755
Power output of the heat pump (under nominal conditions +15°C) W 1660
Power input of the electric backup W 1880
Water temperature setting range of the heat pump °C 45 to 62 (factory setting =
55°C)
Operating temperature range of the heat pump (air temperature) °C -5 to 35
Vacuum air flow (without duct) (230V)
Speed 1 m3/h 230
Speed 2 m3/h 390
Admissible head loss in the air circuit without impacting
performance Pa 25
Noise level** dB(A) 54
Acoustic pressure at 2m in the open dB(A) 37
Coolant fluid
Nota : R134a GWP (Global Warming Potential) is 1350 -/kg R134a / 1.35
Certified performances at an air temperature of 7°C (CDC LCIE 103-15A) and 25Pa** ducting
Coefficient of performance (COP) (230V) 3,1
QPr (over 24h) (230V) kWh 0,77
Heating time* (230V) 8h19min
Performance measured at an air temperature of 15°C (CDC LCIE 103-15A) without ducts**
Coefficient of performance (COP) (230V) 3,8
QPr (over 24h) (230V) kWh 0,74
Heating time* (230V) 7h30min
Other performances
Max. quantity of water mixed at 40°C (setting at 62°C) L 455L
* Tested in a reverberation chamber in accordance with the measurement standard NF EN ISO 3741,
water heaters without accessories, average measurement when heating from a water temperature of 21 to
57°C at an ambient air temperature of 20°C.
** Performances measured when heating water from 15°C to 51°C according to the protocol in the
specifications of the NF Electricity performance brand N° LCIE 103-15A for standalone accumulator tank
thermodynamic water heaters (based on the standard EN 255-3).
This appliance complies with Directives 2004/108/EEC on electromagnetic compatibility and 2006/95/EEC
on low voltage.

- 5 -
Dimensions / components
1 Air outlet 10 Hot water inlet
2 Air inlet 11 Compressor
3 Fixed unit attachment 12 Evacuation of condensate
4 Fixed feet 13 Compressor permanent condenser
5 Cold water inlet 14 Evaporator
6 Pocket 15 Fan wiring
7 Sheath 16 Fan
8 Electric heating element (ceramic element) and
mechanical safety device 17 Expansion valve
9 Regulation 18 Cover
Not shown:
- Manual - Dielectric coupling
- Condensate evacuation tube

- 6 -
Installation
Selecting the location
in compliance with IEC 60 529 Standard, AS60529:2004
Resistance of the floor Capable of withstanding a weight of at least 400 kg (the area under the water
heater)
The place where the appliance is installed must comply with protection index IP X1B
according IEC 60 529 Standard and AS60529:2004 standard and in compliance with electrical wiring
rules of Aus/Nz
Configuration without ducts
semi-ducted Configuration with ducts
Type of room Unheated room at a temperature
above 5° and isolated from the
heated rooms in the dwelling
Recommended room = underground
or semi-underground, a room where
the temperature is higher than 10°C
all year long, well vented location
Room at least above freezing
Recommended room = habitable
space (the heat released by the water
heater is not lost), near the exterior
walls
Do not install near bedrooms to avoid
disturbance by the noise
Examples of rooms Garage, boiler room, basement,
laundry room, etc. Laundry, cupboard in the hallway, etc.
Volume of the room from
which the air is taken
> 20m3 > 20m3
Temperature of the room
where the water heater
is installed
5°C to 35°C, when the water heater
is not working 1°C to 35°C
Temperature of the
incoming air
3°C to 35°C -5°C to 35°C
Height > 2m10 > 2m20 with bent outlet
(height of an insulated bend = approx.
300mm)
Required surface area (591+400) x 700 (l x D). See
diagram below
The surface must be level
800 x 800 (l x D). See diagram below
The surface must be level
Configuration without ducts Configuration without ducts
Configuration without ducts Configuration with ducts
CAUTION : failure to follow the recommendations for installation may result in poor system performance.
200 mm

- 7 -
Recommended configurations
1st Configuration: installation without ducts in an unheated space (Volume > 20m3)
FAN set to 0(see Setting the regulation section, page 15).
Examples of unheated rooms:
- Garage: recovery of free heat released by the car engine after use or by other household
appliances.
- Laundry : dehumidification of the room and recovery of heat released by washing machines and
tumble driers.
- Semi-underground room: recovery of free heat released by the floor and walls of the basement.
2nd Configuration:installation in a heated or unheated room with ducts
FAN set to 2(see Getting start section, page 14).
Recommendations:
Comply with the maximum duct lengths (see Air connections section, page 11).
- Use thermally insulated rigid or semi rigid ducts
- Provide air flow grills at the duct inlet and outlet to prevent entry of foreign bodies
- Ensure that grills do not impede necessary air flow by being obstructed

- 8 -
Configuration tolerated under certain conditions
Installation in an unheated space with one duct (outlet or inlet, volume > 20m3)
FAN set to 1(see Getting start section, page 14).
Possible consequences:
- The negative pressure in the
room due to the expulsion of
the exterior air may result in air
entering through the doors and
windows. Provide an air inlet
(same diameter as the ducts)
from the exterior in order to
avoid sucking air from the
heated space.
- Caution: in winter, the air will
be colder than the air expelled
by the water heater, resulting
in a drop in temperature in the
garage.
* In warmer climates ducts may be reversed to provide cold air into an adjacent room for cooling. Connect
(air in) from outside and (air out) into the adjacent room. NOTE: It is not recommended to reverse ducts
(air out) into the room that the HPWH is installed. This will reduce the COP and increase the cooling of the
room.
Unsuitable configurations
Prohibited Ducting installation
configurations Related risks
The water heater draws in air
from a room containing a
charged source of heat used to
heat the room.
Uses heat energy from a higher cost source.
Connection to mechanical
ventilation The greasy vapour and dust that may flow through the ducts of the mechanical ventilation system can reduce the life time of your water
heater.
Connection to the roof space
If the insulation between the ceiling and the roof space is insufficient, this installation may result in heat loss from the house. In extreme
cases, condensation may appear on the ceiling of the rooms beneath
the cooled parts of the roof space.
Risk of falling objects and aspiration of dust by the raised water heater
in this configuration, that can reduce the life time of your water heater.
Other prohibitions:
- There must be no Heat Pump Air Access connection between the device and a tumble dryer.
- Avoid dusty rooms
- Do not draw in air containing solvents or explosives
- Do not connect the appliance to hoods evacuating fatty or polluted air
- Do not install the water heater in a room that freezes
- Do not place anything on the top of the water heater
- Do not install in an attic

- 9 -
Installing the product
1- Transport the water heater to the place where it is to be installed.
2- Cut the cardboard skirting along the dotted lines.
3- Take the water heater off the pallet and place it by the hydraulic connection.
MAXIMUM!
The water heater must be installed on a smooth and horizontal
floor.
If this is not the case, it must be levelled using the supporting feet.
If this precaution is not taken, problems may occur evacuating the
condensates, resulting in frosting.
In accordance with AS/NZS
60335.2.21 the water heaters
must be fixed to the ground
using the attachment provided
and in compliance with the New
Zealand Building Code Clause
G12, Seismic restraint of
storage water heaters.
The clearance required needs to be adequate for service/replacement of cold water inlet piping devices,
PTR valve and tempering valves (where fitted), elements and thermostats. This may be facilitated by
correct orientation of the cover positions when installing. There are no operational clearance limitations to
surrounding structure. PTR valve removal requires approximately 150 mm for withdrawal.
AS/NZS 3500.4 – National plumbing & drainage. Hot Water Supply Systems – Acceptable solutions.
Combustible Material :
It is recommended to not place combustible material on or adjacent to the water heater.
Internal Installation Safe Tray :
For internal (inside home) installations, a safe tray is recommended in accordance with AS/NZS 3500.4.
Hydraulic connection
Coldwaterinlet
Before making the hydraulic connection, it is essential to clean the feed pipes thoroughly to avoid the risk
of metal or other particles entering the tank or the water heater.
Cold water piping should be provided with a 500 – 560 kPa Pressure Limiting Valve at the point of cold
water connection to the water heater. In addition to the Pressure Limiting Valve, it is a requirement of AS
3500.4 & NZBC G12 that both a Stop Valve and a Non Return Valve are installed upstream of the Product.
No parts (stop valve, pressure reducer, etc.) must be placed between the pressure limiting
valve and the cold water inlet of the water heater, apart from a copper pipe.
Note: since limited water discharge from pressure limiting valve is normal in the heating operation, the
discharge pipe needs be connected to external drain.
+/- 1°

- 10 -
Hotwateroutlet
Do not connect the hot water inlet directly to the copper pipes in order to avoid iron/copper galvanic
couples (risk of corrosion). The hot water inlet (item 10 on page 5) must be fitted with a dielectric coupling
(supplied with the appliance).
If corrosion occurs on a hot water inlet that is not fitted with this protective device, our warranty does not
apply.
Where a maximum hot water delivery temperature is specified by Local, State or Federal
Regulations, a Tempering Valve shall be installed at the Hot Water Outlet, as required.
The included specified Pressure & Temperature Relief Valve must be installed as shown in the
schematic. The PTR valve should be connected to a drain point to accommodate discharge as a
result of both water expansion during heating, and also pressure fluctuations.
A discharge pipe connected to the pressure relief valve is to be installed in a continuously
downward direction and in a frost- free environment.
WARNING: The Pressure Temperature Relief valve and drain line must not be sealed or blocked.
Evacuation of condensate
Air passing through the Evaporator may result in some condensation. If the humidity of the
location Warrants, it may be preferable to connect a simple polymer hose from the Condensate
Drain (Item 16), to the convenient PTR drain point.
Depending on the humidity of the air, up to 0.25l/h of condensate may form.
Installation schematic for example :
Dielectric
fitting
(Supplied)
Connection tee
(Supplied)
PTR Valve
(
700 kPa
)
Tempering
valve
Expansion
control
valve
Untempered
hot water
(Kitchen, laundry)
Tempered
water 50°C
(Bathrooms)
Drain
line
Drain
line
Pressure
Limiting
Valve
(560 kPa)
Line
Strainer
Cold water
main supply
Non-return and
isolating valve

- 11 -
Air connections.
Your heat pump water heater can be fitted with ducting accessories that are not supplied with the water
heater.
If the volume of the room in which the thermodynamic water heater is installed is insufficient, it can be
connected to 160 diameter air ducts. If the air ducts are not insulated, condensation may appear on them
during operation. Therefore, it is essential to choose insulated air ducts.
Poor ducting (crushed ducts, ducts that are too short or too many corners, etc.) may have a negative
impact on performance. Therefore, you are strongly advised to use rigid ducts.
When connected to ducts, the regulation must be adjusted accordingly (see Setting the
regulation section, page 15).
The total head loss in the ducts and accessories of the air inlet and outlet must not exceed
150 Pa. The head losses must be calculated using the measuring tools supplied by the
manufacturer and on the basis of the proposed ducting accessories.
Number of bends
Total duct length* with
the wall-mounted air
inlet and outlet in the
catalogue
0 bends 8 m
1 x 90°bend 7 m
2 x 90°bends 5 m
(*) semi-rigid aluminium duct
Installing the coupling accessory for duct ref. 900366
Refer to the installation instructions supplied with the kit.
If the ceiling is too low to screw the
accessory from the top, remove the
cover by undoing the 6 clips with a
screwdriver
Then return the cover and clip into
place once the accessory has been
installed. The ducts can now be
connected.

- 12 -
Electric connections
Caution: the water heater must be filled with water first, before making the electric
connections (see Getting started section, page 14).
The HPWH must remain connected to the main power supply at all times so that the
operation of the (ACI) anti-corrosion protection of the water heater is ensured.
Electrical work must be carried out by a licensed tradesperson and in accordance with Electrical Wiring
Rules of Aus/NZ. Circuit Isolation and fixed appliance regulations of the Wiring rules shall be complied in
regard to connection to supply, circuit isolation, and protection.
The appliance must be earthed.
Never power the heating element directly.
The safety thermostat fitted to the electric backup must only be repaired in our factory. Failure to obey
this clause will cancel the warranty.
Electric connection using a timer
FOR TIME CLOCK – TIME OF USE TARIFF:
240 volt supply with 2 amp protection connected to the black auxiliary wire and the time clock programmed
in accordance with the time of use tariff hours. Set HCHP parameter to ON, see page 15 setting the
regulation.
Electric
panel
16A 2A
3x1.5 mm²
2x0.75 mm²
Active – red or brown
Neutral – white or blue
M
Timer (*)
(*) This assembly is not universal. Refer to the assembly
instructions of your timer, depending on the model.

- 13 -
Electric connections
FOR RIPPLE CONTROL: NEW ZEALAND ONLY
240 volt supply with 2 amp protection connected to the black auxiliary wire. Set HCHP parameter to ON,
see page 15 setting the regulation.
The diagram shown is only the functional configuration. Wiring details (ie. switching, fusing, method of
isolation, neutrals and their locations must comply with statutory regulations and codes of practice.)
FOR CONTROLLED TARIFF: NEW ZEALAND ONLY

- 14 -
Getting started
1. Filling the water heater.
Fill the water heater by opening all hot water taps and opening the cold water inlet to allow
the water heater to fill and air in the system to be expelled. Close each hot water tap, as the
flow becomes free of air. Check all piping for leaks.
Check that water flows freely by gently operating the lever on the Pressure Temperature
Relief valve.
Power should not be turned on until the water heater is completely filled with water.
2. Checking good working order
Switch on the water heater. Check the screen for errors. If an error appears, refer to the
system diagnostic section. The temperature setting appears. After 3 minutes the
compressor and the fan start.
Select the "FAN" setting and configure according to the recommendations in Setting the
regulation.
After the compressor has been working for about 10 minutes, the temperature at the air
outlet is at least 3 to 4°C below that of the incoming air. The water drips out of the drain of
the pressure limiting valve. This drain must be connected as described in Hydraulic
connection, page 9. This is completely normal, the water is expanding due to the heat.
Check that the connections are watertight again.
If the check is OK, your appliance is ready. It is now working according to the factory
settings, in AUTO mode.
Refer to the settings section in this manual to optimise the operation of your appliance.
NOTE
When heating up with the electric backup and depending on the quality of water, the water
heater may make a slight kettle-like noise. This noise is normal and is not a sign of a faulty
appliance.
The relief of partial vacuum.
A vacuum would be relieved from the system whenever a tap is opened as the outlet is at
atmospheric pressure and the tank is at mains pressure.

- 15 -
3. Setting the regulation
Adjusting the temperature set point
The temperature setting of your appliance is adjusted to 55°C in the factory. It can be adjusted simply by
pressing & directly on the default display. The lower the temperature setting of the heat pump,
the better the coefficient of performance (COP).
Possible values: 45 to 62
Settings to be adjusted
To open or close the setting menu, press + at the same time.
In this menu, all the adjustable settings can be checked and changed, if necessary. The default values in
the factory settings guarantee optimal operation.
Once the menu is open, press to choose a setting,
then press & to change the value of the settings.
Time clock control function for time of use tariff
If the HPWH is controlled by a time clock or with a ripple relay connected to
the 2x0.75 cable then move the parameter to ON.
If 2x0.75 cable is not connected, then the parameter must be OFF.
Default value: OFF
Connecting to ducts
0 corresponds to water heaters without ducts. The regulation then adjusts
the noise level of the fan. In this configuration, the heat pump stops working
if the room freezes.
1 corresponds to semi-ducting, with a single duct installed, usually to
evacuate the cold air out of the room.
2 corresponds to ducts on both the inlet and the outlet.
In these two positions, the regulation adjusts the fan so that it can withstand
additional head losses.
Default value: 0
Possible values: 0, 1 or 2
Avoid Legionella
This parameter is used to activate the legionnaires disease protection
mode: Once every 7 days, all domestic hot water is heated to 60C.
Default value: OFF
Electric only mode
This setting is used in the event of heat pump failure in AUTO, BOOST and
ABSENCE modes in order to guarantee a minimum hot water supply before
the technician intervenes.
Note: In this mode as only the element is heating the unit, approximately
one half of the volume of hot water is immediately available.
Default value: OFF
The value of a setting is validated by proceeding to the next setting.

- 16 -
Use
Control panel
Description of the pictograms:
Symbol Name Description
Compressor Status of the compressor:
Compressor working Flashes slowly
Fan Status of the fan:
Low speed →Flashes slowly
High speed →Flashes quickly
Sensor Indication of the physical position of the sensors
Sensor associated with the temperature on display →Flashes
slowly
Electric backup Status of the electric resistor:
Electric backup working Flashes slowly
Time of use hours
or
Peak hours
In TOU / peak hours mode, the symbol corresponding to the mode
is displayed.
Risk of shortage of
hot water In ECO mode, shows that the air temperature may result in a shortage of hot water.
Minimum Indicates that the value on display is the minimum detected by the
sensor.
MAXIMUM! Indicates that the value on display is the maximum detected by the
sensor.
Information Indicates that you are in the information menu.
Navigation buttons in
the modes
Mode selection button
Back-lit display

- 17 -
Incoming air
temperature Air temperature sensor in the flow of ambient air
Evaporator
temperature Temperature sensor on a cross in the evaporator
Water temperature Water temperature sensor in the pocket
Heat pump time Shows the working time of the water heater heat pump in hours
Elec time Shows the working time of the water heater electric backup in hours
Description of the modes
Graphical icons Description Indicator
Optimised management of the heat pump and the
electrics for guaranteed comfort
Heat pump only working
Forced operation with electrics + heat pump when
heating
Long absence: water heating set to anti-freezing
mode and restart on the last day of absence
Indication of the various sensor temperatures and the
operating time of the heat pump or the electric
backup
This mode is selected
when the cursor is
positioned above the icon.
AUTO mode
This mode automatically selects the energy source for maximum savings, while guaranteeing that the
water is sufficiently hot.
The water heater always selects the heat pump first. If the air temperatures are not in the operating range,
or if a fault is detected in the heat pump, the electric backup is automatically selected to guarantee a
sufficient volume of hot water.
Examples:
Severe winters
Use of 3/4 of the available volume
of hot water
Air temperature about 1°C
Winter
Use of 3/4 of the available volume
of hot water
Air temperature about 7°C
Summer
Use of 2/3 of the available volume
of hot water Air temperature about
18°C
Selection by the regulation:
Heat pump plus electric backup Selection by the regulation: Heat pump only, with authorisation
to continue even in case time clock
signal is off (“HP” on the screen)
Selection by the regulation:
Heat pump only and only when
time clock signal is on
(“HC” on the screen)

- 18 -
ECO mode
This mode uses the heat pump only to produce hot water. Under certain conditions, this mode may
result in shortages of hot water (mainly due to air temperatures outside the operating range).
BOOST mode
BOOST mode can be used to force the heat pump and the electric backup to work at the same time in the
event of high demand.
The regulation automatically returns to the previous mode at the end of the cycle.
ABSENCE mode
This mode helps to protect the tank when the user is absent. The tank is protected against corrosion and
the regulation heats the water to above 7°C. Use the arrows to select the number of days during which you
will be absent. The length of the absence can be set to between 1 and 99 days. If a number of days is not
selected, the water heater remains in ABSENCE mode permanently.
On the last day of the period of absence, the water heater performs a cycle to avoid Legionella. The
regulation automatically returns to the previous mode at the end of the ABSENCE mode.
INFO mode
In this mode, it is possible to view the temperatures measured by the various sensors, the maximum and
minimum values measured and the time for which the heat pump or the electric backup has been working.
Values can be reset by pressing +at the same time.
Automatic defrost
The water heater is fitted with a defrost function. In negative temperatures, the water heater is
automatically defrosted by opening a solenoid, which sends the hot gas from the compressor directly to the
evaporator, where the frost melts. In positive temperatures, only the fan is used to defrost the heat
exchanger.
The defrost mode is activated by the temperature sensor in the evaporator. This temperature sensor can
detect the formation of frost, irrespective of the air temperature or the configuration of the system.
The defrost cycle lasts a maximum of 15 minutes.
Fan controls
When FAN is set to 0 (FAN 0), the water heater draws the air in from the room. The fan permanently works
at low speed in order to reduce the noise level, while producing a sufficient volume of hot water. Do not
use ducts and the FAN 0 setting at the same time.
The FAN 1 setting is used when a single duct is installed, usually on the air outlet. This configuration
evacuates the cold and dry air from the room.
The FAN 2 setting is used when exterior ducts are installed on the air inlet and outlet.
In the positions FAN 1 or FAN2, the fan operates at high speed to compensate for the head loss caused by
the ducts.
In the positions FAN 0 or FAN 1, the lower limit for operation with the heat pump is an air temperature of
3°C, in order to prevent the water heater from freezing (-5°C in FAN 2).