Hitachi RWM-(H)FSN3E, Service Manual

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2 Unit installation
SMGB0070 rev. 1 - 08/2011
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2.2 Indoor unit installation
2.2.1 Selection of the installation location
The indoor unit of the split-type air to water must be installed following these basic requirements:
• Install the unit in a no-frost enviroment.
• 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.
• 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.
• If the event of a cooling installation, a drain pan (supplied as an accessory) will be installed. The installer is responsible
for proper installation and draining.
C A U T I O N
• Do not install the indoor units where electromagnetic waves are directly radiated to the electrical box.
• Install the indoor units and components as far as possible (at least 3 meters) from all sources of electromag
-
netic wave radiation.
• Install noise filter when the power supply emits harmful noises.
• To avoid fire or explosion, do not install the indoor unit in a flammable environment.
• The air to water heat pump must be installed by a service technician. The installation must comply with local
and European regulations.
Handling of the indoor unit
• Place the packaged unit as close as possible to its final installation location in order to prevent any damage during
transportation.
• The indoor unit is supplied in a cardboard box fixed to the wood base by straps. Cut the straps and remove the card -
board box in an upward motion.
• The indoor unit is fixed to the wood base by bolts. Before accessing those bolts, the front cover of the unit must be
removed. Open the user’s interface cover, unscrew two fixing screws (check the figure below) and remove the front
cover of the unit following the instructions.
RWM-(2.0-6.0)FSN3E RWM-(8.0/10.0)FSN3E
• Two persons are required to carry and mount the unit to its final location. Check the figure above for proper handling
when lifting the unit to the wall.