Hitachi YUTAKI H Combi HWD-WE-220S Manual De Instrucciones página 13

UNIT INSTALLATION
5. UNIT INSTALLATION
5.1 General notes
5.1.1 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 indoor unit is prepared to be floor mounted,
so make sure that selected floor is flat and is made
of a non-combustible surface, strong enough for
supporting the indoor weight and also the DHW
tank's weight completely water filled.
• Be sure to maintain the recommended servicing
space for future unit servicing and guarantee enough
air circulation around the unit.
• Take into account that two shut-down valves (factory
supplied) must be installed at the indoor unit inlet/
outlet connections.
• Take into account the space needed to install a
necessary pressure and temperature relief valve,
which must be installed at the DHW inlet connection
of the tank (as close as possible to the tank). 1 shut-
down valve (field supplied) must be also installed at
the DHW outlet connection.
• Keep water draining provisions. The safety valve and
the air purge are provided with a drain pipe which are
located at the bottom side of the unit.
• For UK market models is strongly adviced that a safe
place is needed for discharging of high temperature
and high pressure water and steam from the pressure
and temperature relief valve. Refer to UK Building
Requirements for a correct safe drain.
• If the event of installing the "Cooling kit" accessory,
the installer is responsible for proper installation and
draining.
• Protect the indoor unit against the entry of small
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.
• Install it in a no-frost environment.
• Do not install the indoor unit in a location with very
high humidity.
• Do not install the indoor unit where electromagnetic
waves are directly radiated to the electrical box.
• Install the unit in a place where in case of water
leakage, any damage to the installation space cannot
be produced.
• Install noise filter when the power supply emits
harmful noises.
• To avoid fire or explosion, do not install the unit in a
flammable environment.
PMML0596 rev.0 - 04/2022
• The air to water heat pump must be installed by a
service technician. The installation must comply with
local and European regulations.
• Try to avoid to put any objects or tools above the
indoor unit.
5.1.2 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
tapes.
2. Remove the carton cap and then the plastic bag
around the unit. Afterwards, remove the rest of
carton parts.
Strapping bands
Carton cap
Carton parts
5
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