Table Of Contents; Constructive Features; Construction Versions - Galletti IWC32 Technical Manual

IWC
TABLE OF CONTENTS
1 Constructive features .............................................................2
2 Construction versions ............................................................2
3 Air range ............................................................................3
4 Ratings and technical data .....................................................4
5 Performance .........................................................................6
6 Sound levels ..........................................................................7
7 Water connections .................................................................7
8 Overall dimensions ................................................................8
9 Wiring diagrams ...................................................................10
10 Accessories .........................................................................21
1

CONSTRUCTIVE FEATURES

• The unit's bearing structure is made from galvanised steel sheet,
externally and internally insulated with heat and soundproofing material.
This structure houses the main components (heat exchanger, fan drive
assembly and condensate drainage pump) and is designed for letting
outdoor air in and distributing air to an adjacent room.
• Statically and dynamically balanced centrifugal fan with backward-
curving blades, mounted directly on the electric motor. The blades are
designed for very low-noise and efficient operation also at slow speed.
• 230V electric motor with thermal protection on the windings. It has
4 speeds to optimise unit performance in terms of noise and energy.
• High efficiency heat exchanger made with copper piping and aluminium
fins, complete with air vent valves.
• Plastic water drip tray moulded inside the polystyrene air directing
structure.
• Condensate drainage pump with a useful head of 250 mm, complete
with float and a level switch for controlling the level of condensate inside
the tray and alarm management.
Operating logic assures a lowering of fan speed when the drainage
pump is working (float switch trips, first level) to facilitate the flow of
condensate from the exchanger fins.
• Electrical components housed in an external box, consisting of the
electronic board that controls the unit and a relay for pump operation.
The box is located by the side of the water connections to reduce the
need for installation clearance.
• Plastic water drip tray moulded directly inside the polystyrene air
directing structure.
• Air intake and outlet polystyrene panel, RAL 9001 colour, preformed
high density polystyrene foam air passages complete with air suction
grid, a washable polypropylene filter and adjustable air outlet fins. The
panel differs between the version configured for a wired controller, where
the louver position is manually adjusted, and the version with infrared
remote control where adjustment is motorized. On the front there is also
a series of LEDs indicating the operating status of the unit.
The technical and dimensional data provided herein may undergo changes in connec-
tion with product improvements.
2
2
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• Water circuit
• Room air:
All copying, even partial, of this manual is strictly forbidden.

CONSTRUCTION VERSIONS:

Cassette fan coils (2 pipe systems), cable control (optional).
Cassette fan coils (4 pipe systems), cable control (optional).
OPERATING LIMITS
- Minimum temperature of water inlet: 4°C.
- Maximum temperature of water inlet:
- main heat exchanger: 70°C
- secondary heat exchanger: 80°C
Note: To ensure optimal comfort (homogeneous air temperature
in the room), it is recommended not to exceed an exchanger inlet
temperature of 55°C:
- Maximum operating pressure: 16 bar.
- Minimum temperature of room air intake: 5°C
- Maximum temperature of room air intake: 32°C
Warning: during a shutdown for installation, in the event of a
connection to a fresh air intake or an ambient temperature close
to 0°C there will be a risk of the pipes freezing. Provide drainage
for the plumbing circuit.
WC66000113 - Rev 04