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NOTE
• The data corresponding to DHW tank heater is calculated
in combination with the domestic hot water tank accessory
"DHWT-(200/300)S-3.0H2E".
• Electric fuses can be used instead of magnetic Circuit Breakers
(CB). In that case, select fuses with similar rated values as the CB.
• The Earth Leakage Breaker (ELB) mentioned on this manual
is also commonly known as Residual Current Device (RCD) or
Residual Current Circuit Breaker (RCCB).
• The Circuit Breakers (CB) are also known as Thermal-Magnetic
Circuit Breakers or just Magnetic Circuit Breakers (MCB).
5.4 Transmission wiring between outdoor and
indoor unit
• The transmission is wired to terminals 1-2.
• The H-LINK II wiring system requires only two
transmission cables that connect the indoor unit and
the outdoor unit.
Indoor unit
1
2
Outdoor unit
1
2
• Use twist pair wires (0.75 mm²) for operation wiring
between outdoor unit and indoor unit. The wiring
must consist of 2-core wires (Do not use wire with
more than 3 cores).
• Use shielded wires for intermediate wiring to protect
the units from noise interference, with a length of less
than 300 m and a size in compliance with local codes.
• In the event that a conduit tube for field-wiring is not
used, fix rubber bushes to the panel with adhesive.
!
CAUTION
Ensure that the transmission wiring is not wrongly connected to any
live part that could be damaged the PCB.
6. UNIT INSTALLATION
6.1 General notes
6.1.1 Selection of the installation location
The indoor unit of the split system with air to water
heat pump must be installed following these basic
requirements:
• The indoor unit is intended to be installed in an indoor
place and for ambient temperatures ranging 5~30 °C.
The ambient temperature around the indoor unit must
be >5 °C to prevent water from freezing.
• The unit is prepared to be wall mounted (wall bracket
is factory supplied), so make sure that selected wall is
flat and is made of a non-combustible surface, strong
enough for supporting the indoor unit weight.
• Be sure to maintain the recommended servicing space
for future unit servicing and guarantee enough air
circulation around the unit (See
section).
for R32 units"
• Take into account that two shut-off valves (factory
supplied) must be installed at the indoor unit inlet/
outlet connections.
PMML0666 rev.0 - 09/2024 - 1000017439
• Keep water draining provisions. The safety valve and
• In the event of installing the "Cooling kit" accessory,
• Protect the indoor unit against the entry of small
• Install it in a no-frost environment.
• Do not install the indoor unit in a location with very
• Do not install the indoor unit where electromagnetic
• Install the unit in a place where in case of water
• Install noise filter when the power supply emits
• To avoid fire or explosion, do not install the unit in a
• The air to water heat pump must be installed by a
• Try to avoid to put any objects or tools above the
6.2 Unpacking
All units are supplied with a wooden base, packed by a
cardboard box and plastic bag.
Firstly to unpack it, place the unit on the assembly area as
close as possible to its final installation location, to avoid
damages in transport. Two persons are required.
1. Cut the strapping bands and remove the adhesive
2. Remove the carton assembly and then the plastic bag
3. Unscrew the 4 screws which fix the unit to the
4. Remove the indoor unit from the wooden base and
!
"3.1 Minimum floor area
• Be careful with the Instruction manual and the factory-supplied
• Two people are required when lifting because of the weight of
the air purge are provided with a drain pipe which are
located at the bottom side of the unit.
the installer is responsible for proper installation and
draining.
animals (like rats) which could making contact with the
wires, the drain pipe, electrical parts and may damage
unprotected parts, and at the worst, a fire will occur.
high humidity.
waves are directly radiated to the electrical box.
leakage, any damage to the installation space cannot
be produced.
harmful noises.
flammable environment.
service technician. The installation must comply with
local and European regulations.
indoor unit.
tapes.
around the unit.
wooden base.
place it carefully on the floor, as near as possible to its
final location.
Carton assembly
Wooden base
CAUTION
accessories box located besides the unit.
the unit.
Strapping bands
EN
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