Description Of The Unit; Main Components - Modine ECO IDN Serie Handbuch Für Gebrauch Und Wartung

4 - Description of the unit

The IDN units are unit coolers, i.e. components of a refrigeration system as defined in Standard EN 378-1.
The IDN range of dual discharge unit coolers has been specifically designed for applications in large cold rooms and
refrigerated storerooms with limited height, suitable for the preservation of fresh and frozen products.
The units use ammonia (NH3) as coolant.
Depending on the temperature of the cold storage room, the following models are available:
- IDN 4 for high temperatures (≥ +2 ° C) with 4.0 mm fin spacing;
- IDN 7 for medium and low temperatures (≥ –25 ° C) with 7.0 mm fin spacing (a defrost system version is
recommended);
- IDN 10 for low temperatures (≥ -35 ° C) with 10.0 mm fin spacing (a defrost system version is recommended);
- IDN 12 for low temperatures (≥ -40 ° C) with 12.0 mm fin spacing (a defrost system version is recommended);
!
The capacities have been calculated considering three recirculations
with pump operating from below.
The standard fan motors used have the following features:
- diameter 450 and 560 mm, three-phase elecric power 400V/3/50 Hz, dual speed, with external rotor and steel
protection grid treated with epoxy paint.
- protection rating IP 54;
- insulation class THCL155 (F);
- inner thermal contact protection
- maximum operating temperature: +40 °C.
The units are predisposed for ground wiring connection (class I electrical appliances).
!
The unit installer and/or plant operator must ensure the presence of an efficient earthing
connection to protect against indirect electric contacts.
The electric heating elements eventually used for defrosting are housed in junction boxes made of thermoplastic material
(class II protection against direct electrical contact), with protection rating IP 54.
Upon request, models can be supplied with coils, defrosting units and fan motors different from the standard ones.

4.1 - Main components

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Brackets
Drip tray
Side panel
Fan shroud