Diamond DA 42 NG, Maintenance Manual

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AIRCRAFT
DA 42 NG Series
AMM
Ice Protection System
Doc # 7.02.15
Rev. 4
30-00-00
Page 7
15 Mar 2018
Figures 3 and 4 show the schematic diagram for the electrical parts of the fluid based ice protection
system on the DA 42 NG. The electrical part of the ice protection system consists of:
)
De-ice control box.
)
De-ice control panel.
)
Low level sensor.
)
De-ice fluid level gauge.
)
Low pressure sensor.
)
High pressure sensor.
)
Main pumps.
)
Windshield pumps.
)
Solenoid valves.
)
Ice lights.
The ice protection system is electrically operated. It is supplied with power via the XFR PUMP/DE-ICE
circuit breaker. Refer to Chapter 92 for wiring diagrams.
A. De-Icing Fluid Tank
The de-icing fluid tank is installed in the nose baggage compartment of the airplane on the RH side.
It consists of a single polyamide chamber with a usable capacity of 30 liter (7.9 US gal). If
OÄM 42-203 is installed, the de-icing fluid tank is installed behind the baggage compartment and
the optional short baggage extension. The tank filler is located in the fuselage nose on the RH side,
aft of the nose baggage door. If OÄM 42-203 is installed, the tank filler is located on the LH side of
the fuselage, aft of the passenger door.
A fluid level sensor provides the signal for the fluid level indication on the G1000. A level switch in
the tank provides indication of the minimum quantity for dispatch (45 minutes) via a caution
message on the G1000.
The tank has an inlet with an integrated strainer. From the outlet, nylon tubing feeds the fluid to the
inlet of the main pump assembly.