Atlantic Loria Duo 6000 R32 User manual

For professionals
To be kept by the user for future reference
EN
INSTALLATION
Loria Duo 6000 R32
Air/water heat pump split, 2 services
U0710290_2257_EN_1
20/09/2021
Outdoor unit
WOYA060KLT
WOYA080KLT
WOYA100KLT
Hydraulic unit
023017
023018
023019
024159

■Installation and maintenance rules
The appliance must be installed and maintained
by an approved professional in accordance with
the prevailing regulations and code of practice, in
particular:
- General regulations for electrical installations.
• Do not use any means to accelerate the defrosting
process or to clean the appliance, other than those
recommended by the manufacturer.
• The appliance must be stored in a room that
does not contain continuously operating ignition
sources (for example: open flames, gas appliance
or operating electric heater).
• Do not pierce or burn.
• Be careful, refrigerants can be odorless.
■Handling
The outdoor unit must not be in a horizontal position
during transport. Transport in a horizontal position
may damage the appliance by moving the refrigerant
and damaging the compressor's suspensions.
Damage caused by transportation in a horizontal
position is not covered by the warranty.
If necessary, the outdoor unit may be tilted during
manual handling (to go through a door or use a
staircase).
This operation must be conducted very carefully
and the appliance must be immediately restored to
the upright position.
■Installation
The heat pump installation must meet the
requirements related to the location of the heat
pump.
The heat pump is designed to be installed at less
than 2000 m altitude.
In accordance with IEC 60-335-2-40 standard, the
hydraulic module of the heat pump as well as all
the refrigerant connections that cross the inhabited
area must be installed in rooms respecting the
minimum surface.
• Warning, hydraulic unit should not be installed in
an air current.
■Refrigerant
The maximum R32 fluid load after refilling must not
exceed 1.84 kg.
■Containment of refrigeration circuits
All refrigeration circuits are sensitive to dust and
moisture contamination. If any such pollutants
penetrate the refrigeration circuit, they can affect
the reliability of the heat pump.
• Make sure that the connections and refrigeration
circuits (hydraulic unit, outdoor unit) are protected
correctly.
• In the event of a subsequent failure and following
an inspection, the presence of moisture or foreign
bodies in the compressor oil would automatically
void the warranty.
- Check upon receipt that the fittings and refrigeration
circuit caps mounted on hydraulic unit and outdoor
unit are properly seated and secured (cannot be
loosened with bare hands). If this is not the case,
tighten them using a C spanner.
- Check also that the refrigeration connections are
sealed (plastic caps or tubes crimped at the ends
and brazed). If the caps must be removed during
the installation (tubes to be re-cut for example),
put them back as soon as possible.
■Hydraulic connections
The connection must comply with good engineering
practices according to the regulations in force.
Reminder: Make the assembly seals according to
good engineering practices in force for plumbing
work:
- Use suitable seals (fibre seals, O rings).
- Use Teflon or hemp tape.
- Use sealant (synthetic as required).
Reminder: The presence on the installation of a CB
disconnection function (IEC 61770), designed to
avoid heating water from returning to the drinking
water network, is required by articles 16.7 and 16.8
of the Standard Departmental Sanitation Rules.
Glycol must be used if the initial temperature
is less than 10°C (cooling on the fan-coil
heater). If water containing glycol is used,
carry out an annual check of the quality of
the glycol. Use monopropylene glycol only.
Never use monoethylene glycol.
• In certain installations, the presence of different
metals can cause corrosion problems; in this case,
the formation of metal particles and sludge in the
hydraulic circuit is seen. Use a corrosion inhibitor in
the proportions recommended by its manufacturer.
• It is also necessary to ensure that the treated
water does not become aggressive.
The dielectric function is produced using polyamide
wire hoses (dielectric connections are not needed).
Place on the cold water supply a security unit with
calibrated valve 7 to 10 bar max. (depending on
local regulations), which will be connected to the
sewer vent. Operate the safety unit according to the
manufacturer's specifications.
The pressure relief
valve must be operated regularly to remove scale
deposits and to ensure that it is not blocked.
The domestic hot water tank must be supplied with
cold water through a safety group. There should be
no valve between the safety unit and the tank.
Connect the safety valve evacuation to the drain.
The discharge pipe connected to the pressure relief
valve must be installed in an environment kept frost-
free and continuously sloping downwards.

■Characteristics of the electrical power supply
Always check that the electric power supply is
switched offbefore works.
The electrical installation must be conducted in
accordance with the regulations in effect and in
particular:
The electrical connections will only be made when
all of the other assembly operations (attachment,
assembly,...) have been carried out.
Warning!
The contract taken out with the energy supplier
must be sufficient to cover the power of the heat
pump as well as the sum of the power requirements
of all of the appliances likely to be operated at the
same time. When the power is too low, check with
the energy provider the value subscribed to in your
contract.
Never use a socket for the power supply.
The heat pump must be directly powered (without
external switch) by dedicated lines that are protected
from the electrical housing by bipolar circuit breakers
dedicated to the heat pump, curve C for the outdoor
unit, curve C for the electrical DHW* back-ups.
The electrical installation must be equipped with a
differential protection of 30 mA.
This appliance is designed to operate under a
nominal voltage of 230 V +/- 10%, 50 Hz.
Type 60245 IEC 57 or 60245 IEC 88 outside power
supply cables must be used.
• General remarks on electrical connections
It is essential to maintain the phase-neutral polarity
when making the electrical connections.
Rigid wires are preferable for fixed installations,
particularly in a building.
Clamp the cables using cable clamps to avoid any
accidental disconnection of the conductive wires.
Tightening torque:
0.4 to 0.6 N.m
Ø 15 max.
1
24
3
Connection to Earth and Earth bonding continuity
are essential.
The earth wire must be longer than the other wires.
• Connecting to screw terminals
Use of ring terminals or tips is prohibited.
- Always choose a rigid wire that complies with
current standards.
- Strip the end of the wire over a length of around
25 mm.
- With round nosed pliers, make a loop with a
diameter that corresponds to the terminal's
tightening screws.
- Tighten the terminal screw on the loop very firmly.
Insufficient tightening can cause overheating,
leading to breakdown or even a fire.
Rigid wires
Loop
25 mm
Special screw
and washer
Terminal
block
Lug on
flexible
wires
prohibited
• Connecting to spring terminals
- Strip the end of the wire over a length of around
12 mm.
- Push the spring with a screwdriver so that the wire
enters the cage.
- Slide the wire into the opening provided for this
purpose.
- Remove the screwdriver and then check that the
wire is jammed in the cage by pulling on it.
2
1
3
(* depending on option)

- 4 -
Contents
 Description of the equipment 6
Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Optional equipment . . . . . . . . . . . . . . . . . . . . . . . . 6
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operating principle . . . . . . . . . . . . . . . . . . . . . . . 14
Layout 16
Positioning the refrigerant connections . . . . . . . . 16
Installing the outdoor unit . . . . . . . . . . . . . . . . . . 17
Installation of the hydraulic unit . . . . . . . . . . . . . . 20
Refrigeration connections 26
Rules and precautions. . . . . . . . . . . . . . . . . . . . . 26
Shaping the refrigeration pipes . . . . . . . . . . . . . . 27
Checks and connection . . . . . . . . . . . . . . . . . . . . 29
 Hydraulic connections 32
Heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Connecting to the DHW circuit . . . . . . . . . . . . . .33
Electrical connections 34
Electrical power connections (LV) . . . . . . . . . . . . 35 Electrical connections - SELV . . . . . . . . . . . . . . . 42
Controller Interface 44
User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Display Description . . . . . . . . . . . . . . . . . . . . . . . 45
Temperature control 46
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Room influence . . . . . . . . . . . . . . . . . . . . . . . . . 46
Room control . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Commissioning 48
Checks before commissioning . . . . . . . . . . . . . . 48
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Cleaning the sediment trap . . . . . . . . . . . . . . . . . 49
Circulation pump operation . . . . . . . . . . . . . . . . . 49
Floor drying mode . . . . . . . . . . . . . . . . . . . . . . . . 49
Controller Menu 50
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Setting parameters . . . . . . . . . . . . . . . . . . . . . . . 50
List of parameters . . . . . . . . . . . . . . . . . . . . . . . . 51
Displaying information . . . . . . . . . . . . . . . . . . . . . 56
This device must be installed by qualified personnel with a certificate of capacity for the handling of
refrigerants.
Any modification or work on the device not authorised by the manufacturer will automatically void the
warranty.
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN

- 5 -
Troubleshooting 58
Hydraulic unit errors . . . . . . . . . . . . . . . . . . . . . . 58
Outdoor unit errors . . . . . . . . . . . . . . . . . . . . . . . 60
Safety thermostat . . . . . . . . . . . . . . . . . . . . . . . . 62
 Maintaining the installation 64
Accessing the components of the appliance . . . . 64
Hydraulic checks . . . . . . . . . . . . . . . . . . . . . . . . . 64
Maintenance of the domestic hot water tank. . . . 65
Checking the outdoor unit . . . . . . . . . . . . . . . . . . 65
Electrical checks . . . . . . . . . . . . . . . . . . . . . . . . . 65
 Maintenance 66
Accessing the electric box. . . . . . . . . . . . . . . . . . 66
Replacing fuses. . . . . . . . . . . . . . . . . . . . . . . . . . 66
Draining the hydraulic unit. . . . . . . . . . . . . . . . . . 66
Appendices 68
Filling the installation with gas. . . . . . . . . . . . . . . 68
Overall hydraulic layout . . . . . . . . . . . . . . . . . . . . 70
Electrical wiring diagrams . . . . . . . . . . . . . . . . . . 72
 Quick-start procedure 76
Commissioning check-list . . . . . . . . . . . . . . . . . . 76
Settings sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Start-up data sheet . . . . . . . . . . . . . . . . . . . . . . . 79
Instructions for the user 79
►
Symbols and definitions
Warning. Risk of serious injury to the person and
/ or risk of damage to the machine. Observe the
warning.
Important information that must always be kept in
mind.
Tips and advice
Bad practice
Warning : Electricity hazard
Warning : Slightly flammable refrigerant.
Read the installation manual
Read the operating manual
Read the installation and operating manuals
This document was written in French and translated.
Read the document comprising the precautions for use (regulation installation and maintenance
conditions) before installation and/or use.
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN

- 6 -
►
Packaging
• 1 package: Outdoor unit
• 1 package: Hydraulic unit.
 Description of the equipment
►
Definitions
- Split: The heat pump is formed by two elements (an
outdoor unit to be installed outdoors and a hydraulic
unit to be installed indoors).
- Air/water: The outdoor air is the energy source. This
energy is transmitted to the heating water by the heat
pump.
- Inverter: The speeds of the fan and the compressor
are modulated to suit the heat requirements. This
technology saves energy and permits operation with
a single phase power supply, regardless of the power
rating of the heat pump, by avoiding high current
demands on start-up.
- COP (coefficient of performance): this is the ratio
between the energy transmitted to the heating circuit
and the electrical energy consumed.
►
Scope
This heat pump provides:
- Heating in winter,
- Control of two heating circuits*,
- Production of domestic hot water,
- Cooling in summer* (for floor heating/cooling system
or fan-coil unit).
*: These options require the use of additional kits (see §
"Optional equipment").
Accessories (Only models 10)
Adapter 5/8” - 1/2” and 3/8” - 1/4”
Nut 5/8” and 3/8”
Elbow
Plug X 3
Cable grommet X2
►
Optional equipment
• Room thermostat Navilink 105 (ref. 074 511 ) /
Navilink 128 (ref. 074 513 )
for correcting the ambient temperature.
• HP Pack (ref. 602 231)
for reporting consumption per use (Heating / DHW).
• Dual circuit kit (ref. 076446)
for connecting 2 heating circuits.
• Cooling kit (ref. 076 313).
• Anti-vibration pads (ref. 523 574).
• White PVC floor support (ref. 809 532) or
Black rubber floor support (ref. 809 536).
• Condensate drain pan
(models 3, 4, 6, 8 - ref. 074 049).
• Container bottom tracer (ref. 809 644).
• Outdoor temperature sensor (ref. 074 203).
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN
Packing list
Heat pump Outdoor unit Hydraulic unit
Model Code (export) Code (NL) Model Code Model Code
Loria duo 6003 R32 526121 924042
WOYA060KLT 700227
Loria Duo 3 R32 023017
Loria duo 6004 R32 526122 924043 Loria Duo 4 R32 023018
Loria duo 6006 R32 526123 924044
Loria Duo 6-8 R32 023019
Loria duo 6008 R32 526124 924044 WOYA080KLT 700228
Loria duo 6010 R32 526125 924051 WOYA0100KLT 7002229 Loria Duo 10 R32 024159

- 7 -
1Min. circulating water volume required for each circuit excl. HP volume: see
additional information "Connections", page 32.
2Water volume to be complied with, installation of a buffer required.
3Sound pressure level at (x) m from the appliance, 1.5 m from the ground, free field,
directivity 2.
4The acoustic power is a measurement made in the laboratory of the power of
the noise emitted but contrary to the noise level, it does not correspond to the
measurement of what is felt.
5Refrigerant R32 in compliance with standard NF EN 378.1.
6Factory charge of refrigerant R32.
7Taking into account the potential additional charge of refrigerant R32 (see
"Additional filling", page 30.
8The announced thermal and acoustic performances are measured with 7,5m length
refrigerant lines.
►
Specifications
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN
Model name Loria duo... 6003 6004 6006 6008 6010
Nominal heating performances (outdoor temperature/ initial temperature)
Heat output
+7 °C/+35°C - floor heating system kW 3.3 4.6 5.60 7.50 9.80
+7 °C / +55 °C - Radiator kW 3.10 4.50 5.60 7.2 9.50
Power absorbed
+7 °C/+35°C - floor heating system kW 0.65 0.95 1.16 1.66 2.16
+7 °C / +55 °C - Radiator kW 1.22 1.66 2.02 2.60 3.33
Coefficient of performance (COP) (+7°C/+ 35°C) 5.07 4.83 4.81 4.52 4.53
Electrical characteristics
Voltage (50 HZ) V 230
Stand-by consumption W 5
Heating electrical back-up power kW 3
DHW electrical back-up power kW 1.6
Power absorbed by the circulation pump (max.) W 70
Maximum power absorbed by the outdoor unit W 3260 3260 3260 4510 4760
Hydraulic circuit
Maximum pressure for heating / DHW MPa (bar) 0.3 (3) / 1 (10)
Minimum allowed hydraulic flow rate l/h 420 420 600 600 600
Flow rate of the hydraulic circuit for Δt=4°C (rated conditions) l/h 860 860 1300 1620 2020
Flow rate of the hydraulic circuit for Δt=8°C (rated conditions) l/h 540 540 720 810 1010
Minimum recommended water volume per circuit (excl. HP)...
1
- Floor heating-cooling system
- Cast iron / steel radiators
- Dynamic radiator 2
l
l
l
2
12
23 (2)
2
12
23 (2)
2
12
23 (2)
15
33
44 (2)
22
44
49 (2)
Expansion vessel / DHW tank volume l 8 / 190
Miscellaneous
Weight of hydraulic unit (empty/full of water) Kg 135 / 330
Weight of the outdoor unit Kg 39 39 39 42 62
Noise level at 1 metre 3(hydraulic unit) dB (A) 36
Sound power level as per EN 12102 4(hydraulic unit) dB (A) 44
Noise level at 5 metres 3(outdoor unit) dB (A) 35 35 35 38 40
Sound power level as per EN 12102 4(outdoor unit) dB (A) 57 57 57 60 62
Heating system operating limits
Min./max. outdoor temperature °C -20 / +35
Max. water temperature for heating outgoing circuit °C 55
Min. water temperature for heating return circuit (heating mode) °C 17
Refrigerant circuit
Diameters of the gas / liquid pipes Inches 1/2 / 1/4 1/2 / 1/4 1/2 / 1/4 1/2 / 1/4 5/8 / 3/8
Factory charge of refrigerating fluid R32 5g 970 970 970 1020 1630
Maximum operating pressure MPa (bar) 4.2 (42)
Min. / max. length of pipes 6 / 8 / max. length with additional charge 7 m 3 / 15 / 30 3 / 20 / 30
Maximum level difference m 20

- 8 -
590
1777
1710 1750 1768
648
91 75
52
154
234
318
406
458
545
525
88
124
183
239
Vue de dessusVue de dessus
Vue de côtéVue de face
Ø 20x27 3/4”
Ø 20x27 3/4”
Z2 Ø 26x34 1”
Z1 Ø 26x34 1”
Z1 Ø 26x34 1”
Z2 Ø 26x34 1”
Ø 1/2”
Ø 1/4”
fig. 1 - Dimensions of the hydraulic unit in mm
■Hydraulic unit
Front view
Overhead view Overhead view
Dimensions of the hydraulic unit, see § page 20
Side view
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN

- 9 -
■Outdoor Unit, models 3, 4, 6 ■Outdoor Unit, model 8
886324
353
180
580
330
632
120
184
Air
907
349
353
194
600
330
716
119
184
Air
AIR
AIR
998
940 365
390
650
355
Air
■Outdoor Unit, model 10
AIR
fig. 2 - Dimensions of the outdoor unit in mm
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN

- 10 -
fig. 3 - Ohmic value of the sensors (outdoor unit)
fig. 4 - Hydraulic pressures and
flow rates available
fig. 5 - Ohmic value of the sensors
(hydraulic unit - Outdoor sensor)
°C
0
5000
10000
15000
20000
25000
30000
35000
0 102030405060708090100
B3977
10 kΩ, 25°C
HP return sensor.
HP outgoing sensor.
Outdoor sensor QAC2030 NTC.
-20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
10000
1000
100
10
1
- Compressor.
- Discharge.
- Condensation.
- Outdoors.
Temperature °C
Ohmic value (kΩ)
- Evaporator outlet.
- Evaporator centre.
- Compressor casing.
00 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
1
2
3
4
5
6
7
8
m3/h
mCE
4
3
2
1
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN



- 12 -
►
Description
fig. 6 - Components (outdoor units)
Key :
1. High performance and low noise impeller.
2. Electrical motor with variable "Inverter" operation.
3. "Inverter" control unit.
4. Connection terminal blocks
(power supply and interconnection).
6. 4-way valve.
7. Anti-corrosion treated bodywork.
8. Main circuit electronic expansion valve.
9. Noise and thermally insulated "Inverter" compressor.
10. Refrigeration connection valves (flared connectors) with
protective caps (a: liquid; b: gas).
11. Holding tank with condensate drain hole.
12. High-performance exchange surface evaporator; anti-
corrosion treated hydrophilic aluminium fins and grooved
copper tubes.
13. Pressure Switch.
14. Pressure sensor.
■Outdoor unit Model 3, 4 & 6 ■Outdoor unit Model 8
213
4
6
8
10a
10b
912117
13
14
21313
4
6
8
14
10a
10b
912117
■Outdoor unit Model 10
12313
4
6
8
14
10a
10b
9
12
117
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN

- 13 -
fig. 7 - Components (hydraulic unit)
Front view Side view
Key:
1. Electric box.
2. Controller / User interface
(description, see page 44).
3. Hydraulic system (circulation
pump and distribution valve)
4. Return heating flow.
5. Outgoing heating flow.
6. Outgoing heating flow
(combined circuit - Z 2)*.
7. Return heating flow
(combined circuit - Z 2)*.
8. Domestic Cold Water inlet
9. Domestic Hot Water outlet
10. "Gas" refrigeration connection.
11. "Liquid" refrigeration connection.
12. Safety valve.
13. Automatic air bleeder.
14. Removable expansion vessel.
15. Condenser (exchanger).
16. Electrical back-up.
17. Sediment trap with filter
18. Valves
19. Pressure gauge
20. Bleed tap.
21. Flow meter.
22. DHW electrical backup
23. Anode
24. Reset button
(overheating safety device).
Sensors
25. HP outgoing sensor.
26. HP return sensor.
27. Condensation sensor.
28. DHW sensor.
* Optional
20
20
3
13
13
19
4 5 6* 7* 8 9 10 11 12 13 17
18 18
26
21
25
14
1
2
24
13
15
16
28
23
22
27
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN

- 14 -
►
Operating principle
The heat pump transmits the energy contained in the
surrounding air into the residence to be heated.
The heat pump consists of four main elements, in which
a refrigerant (R32) circulates.
- In the evaporator (reference 12, fig. 6, page 12):
The energy is taken from the surrounding air and is
transmitted to the refrigerant. Because it has a low
boiling point, it changes from liquid state to vapour
state, even in cold weather (down to -15°C outdoor
temperature).
- In the compressor (reference 9, fig. 6, page 12):
The vaporised refrigerant is brought to high pressure
and takes on more calories.
- In the condenser (reference 23, fig. 6, page 12): The
energy in the refrigerant is transmitted to the heating
circuit. The refrigerant returns to its liquid state.
- In the expansion valve (reference 8, fig. 6, page 12):
The liquefied refrigerant is brought back to low pressure
and returns to its initial temperature and pressure.
The heat pump has a regulator that controls the indoor
temperature based on the measurement of the outdoor
temperature, known as weather-dependent control.
The room thermostat (optional) corrects the weather-
dependent setpoint.
The hydraulic unit is equipped with an electrical back-up
system, which is designed to provide additional heat
during the coldest periods.
• Regulation functions
- The initial temperature of the heating circuit is
controlled by the weather-dependent setpoint.
- The power of the outdoor unit is modulated according
to the need via the "inverter" compressor.
- Control of the electrical back-up.
Additional heating when the HP alone is insufficient.
Assist mode.
- Switching between summer/winter operation is
automatic.
- Room thermostat*: The room thermostat corrects the
weather-dependent setpoint.
- Domestic hot water.
• Protection functions
- Compressor protection via heating back-up.
- Heat exchanger protection via heating back-up.
- Legionella cycle for domestic hot water.
- Minimum flow detection.
- Sediment trap to protect the HP heating circuit
- Frost protection.
- Safety thermostats for electrical back-ups.
*When the heat pump is equipped with options and associated kits.
fig. 8 - Operating principle of a heat pump
Ev
Dt
Cn
Cp
1kW
COP 4
4kW
20 °C
PAC
PAC -Heat pump
Ev - Evaporator
Cp - Compressor
Cn - Condenser
Dt - Expansion valve
Air energy
Heat produced
Electric
energy
consumed
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN

- 15 -
• Domestic hot water (DHW) operating principle.
Two domestic hot water (DHW) temperatures can be
set:
- Comfort temperature ( ) and
- Reduced temperature ( )
(See user interface description page 44 or room
thermostat):
The DHW programme ( ) is set by default
to a comfort temperature ( ) according to 2 pre-set
phases (see "DHW time programme", page 52) and
a reduced temperature ( ) for the rest of the day,
which optimises electricity consumption while ensuring
comfortable levels of hot water and heating.
The production of domestic hot water (DHW) is triggered
when the temperature in the tank falls 7°C below the
temperature setpoint.
The heat pump produces domestic hot water (DHW),
which is then heated further, if required, by the electrical
back-up system inside the tank.
To ensure that the DHW setpoint is reached, the
electrical back-up system must be left on.
DHW production takes priority over heating;
nevertheless the production of DHW is controlled by
cycles that control the times assigned to the heating
and the production of DHW in the event of simultaneous
demand.
A DHW boost function is available (on the user interface:
user level , setting "95", page 55) or on the room
thermostat. This DHW boost is used to heat the DHW to
the comfort temperature at any time of day. The boost
function is cancelled automatically when the demand
for hot water has been met.
Legionella cycles may be authorised (see parameter:
Legionella function No. "73", page 53).
• Dynamic radiators or fan-coil heaters with integrated
control system
Do not use a room thermostat in the zone concerned.
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN

- 16 -
►
Positioning the refrigerant
connections
Manipulate the pipes and pass through slabs
or walls with protective plugs in place or after
brazing.
Keep the protective caps or brazed ends until
commissioning the product.
The outdoor unit must be connected to the
hydraulic unit ONLY with brand new separately
insulated copper connections (refrigerant quality).
Comply with with the pipe diameters (fig. 28, page 28).
Observe the maximum and minimum distances
between the hydraulic unit and the outdoor unit (fig. 28,
page 28); the guarantee of the performances and the
system's service life depend on this.
The minimum length of the cooling connections
is 3 m for correct operation.
The appliance's warranty will become void if it is applied
with cooling connections that are shorter than 3 m
(tolerance +/-10%).
If the refrigeration connections are exposed to
weathering or UV rays and the insulation is not UV-
resistant, protection must be provided.
 Layout
fig. 9 - Recommended example of refrigerant
connections layout
fig. 10 - Open the outdoor unit model 3, 4, 6 & 8
X3
Trou Crochets
Holes Hooks
fig. 11 - Open the outdoor unit model 10
fig. 12 - Transport of the outdoor unit model 10
X2
Poignées
handles
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN

- 17 -
►
Installing the outdoor unit
▼
Installation precautions
The outdoor unit must only be installed
outside. If a shelter is required, it must have
broad openings on all 4 sides and installation
clearances must be observed.
• Choose the location of the appliance after discussion
with the client.
• We recommend choosing a site that is sunny but
sheltered from strong cold prevailing winds.
• The unit must be easily accessible for future installation
and maintenance work.
• Ensure that connections to the hydraulic unit can be
made easily.
• The outdoor unit is able to withstand bad weather but
avoid installing it in a position where it is likely to be
exposed to significant dirt or flowing water (e.g. under
a broken gutter).
• During normal operation, condensation is common.
Ensure that the unit is installed in a well drained
location (e.g. Gravel, sand). If installation is carried out
in an area where the temperature stays below 0°C for
long periods, check that the presence of ice does not
present any danger. A drain pipe can be connected to
the condensate drain tray (option) (fig. 15).
• Caution should be taken to ensure that there is no
obstruction to air circulating through the outdoor unit.
• Keep the outdoor unit away from heat sources and
flammable products.
• Make sure that the unit does not disturb the
surrounding area or inhabitants (noise level, draught,
low temperature of the ejected air freezing the plants
in its path).
fig. 13 - Minimum installation clearances around the outdoor unit (model 3, 4, 6 & 8)
A
C
A
A
G
G
A
A
L
G
G
C
A
L
A
B
C
H
C
B
H
C
J
B
C
C
M
J
A
B
F
HB
E
H
C
K
C
B
H
B
C
A100 mm
B200 mm
C250 mm
D300 mm
E400 mm
F500 mm
G600 mm
H1000 mm
J1500 mm
K2000 mm
L= 200 mm max
M= 300 mm max
■Outdoor Unit, models 3, 4, 6, 8
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN

- 18 -
fig. 14 - Minimum installation clearances around the outdoor unit (model 10)
A
D
A
A
FF
A
E
N
H
H
D
F
N
C
E
D
J
D
F
J
D
J
F
D
D
M
J
B
G
J
KF
G
J
D
L
D
A100 mm
B150 mm
C200 mm
D250 mm
E300 mm
F500 mm
G600 mm
H1000 mm
J1500 mm
K3000 mm
L3500 mm
M= 300 mm max
N= 500 mm max
■Outdoor Unit, model 10
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN

- 19 -
• The surface on which the appliance is installed must:
- Be permeable (soil, gravel, etc.).
- Be perfectly flat,
- Support its weight easily.
- Allow a solid fastening base,
- Not transmit any vibration to the dwelling. Anti-vibration
blocks are available as an option.
• The wall bracket cannot be used where it is likely to
transmit vibrations. Installing the unit on the ground is
preferred.
▼
Positioning Outdoor Unit
The outdoor unit must be raised at least 50 mm above
ground level. In areas prone to snow, this height should
be increased but should not exceed 1.5 m (fig. 15).
- Fasten the outdoor unit by means of screws and
rubber tightening or toothed lock washers to prevent
them from coming loose.
In areas with heavy snowfall, if the inlet and
outlet of the outdoor unit are blocked with
snow, heating may become difficult and a
failure is likely to occur.
Construct a canopy or place the unit on a high stand
(local configuration).
- Place the unit on a solid stand in order to minimise
impacts and vibrations.
- Do not place the unit directly on the ground as this will
cause problems.
▼
Condensate drain pipe
The outdoor unit can generate a large volume
of water (called condensate).
If the use of a drain pipe is necessary (e.g., superposition
of the outdoor units) :
- Install the condensate drain tray (optional) for
models 3, 4, 6 and 8 only. Use the elbow provided C
and connect a 16 mm-diameter hose / pipe for draining
the condensate.
- Use the stopper or stoppers provided Bto block the
opening of the condensate tank.
Allow for the condensate to flow away under the force of
gravity (waste water, rain water, gravel bed).
If installation is carried out in an area where the
temperature stays below 0°C for long periods,
equip the drain pipe with trace heating to
avoid it icing up. Trace heating must heat not
only the drain pipe but also the bottom of the
appliance's condensate collection tank.
fig. 15 - Positioning the outdoor unit,
discharging condensates
H
HC
* In areas with heavy snowfall,
(H) must be higher than the average snow layer
C
■Only model 10
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN

- 20 -
►
Installation of the hydraulic unit
Heat sources such as :
- Open flame,
- High temperature surface >700°C (filament),
- > 5 kVA unsealed contactor
Avoid using sources of heat inside the room where
the heat pump is installed. If this is not possible,
see page 24
▼
Installation precautions
• Choose the location of the appliance after discussion
with the client.
• The installation space should comply with current
regulations.
• To facilitate maintenance and to allow access to the
various components, we recommend that you provide
sufficient space all around the hydraulic unit (fig. 16).
• Fix the hydraulic module to the ground (attachment
not supplied) (fig. 18).
Other precautions
Be careful not to bring flammable gas
near the heat pump during installation,
in particular when brazing is required.
The appliances are not fireproof and should
not therefore be installed in an explosive
environment.
To prevent risks of humidity in the exchanger,
it is pressurized with nitrogen.
- To avoid condensation inside the condenser, remove
the refrigeration circuit caps only when making the
refrigeration connections.
If the refrigeration connection is only performed at the
end of the installation, make sure that the refrigeration
circuit caps* remain in place and tight throughout the
installation.
* (Hydraulic unit side and outdoor unit side)
- After each maintenance operation on the refrigeration
circuit and before the final connection, take care to
put the caps back in position to avoid any pollution
of the refrigeration circuit (sealing with adhesive is
prohibited).
fig. 16 - Minimum installation clearances
around the hydraulic unit
600 mm mini
650 mm
mini
300 mm
mini
1000 mm
mini
Loria Duo 6000 R32 / INSTALLATION / 2257 - EN