Single Aisle 
 TECHNICAL TRAINING MANUAL 
 CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl
2&3) 
 ICE & RAIN PROTECTION 
 This document must be used for training purposes only

Under no circumstances should this document be used as a reference

It will not be updated.

All rights reserved

No part of this manual may be reproduced in any form,
by photostat, microfilm, retrieval system, or any other means,
without the prior written permission of AIRBUS S.A.S.
 Single Aisle TECHNICAL TRAINING MANUAL

ICE & RAIN PROTECTION

GENERAL
Ice and Rain Protection Level 2 (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DRAIN MAST ICE PROTECTION
System Presentation (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
POTABLE/WASTE WATER LINES ANTI-ICE
System Presentation (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
U5F07351 - u1PT1TO

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  TABLE OF CONTENTS Sep 12, 2007
30 - ICE & RAIN PROTECTION Page 1
 Single Aisle TECHNICAL TRAINING MANUAL

ICE AND RAIN PROTECTION LEVEL 2 (2)

sensors, pitot probes, static ports, and Total Air Temperature (TAT)
SYSTEM OVERVIEW probes is achieved by electrical heating. The PROBE/WINDOW
HEAT pushbutton switch (normally in the AUTO position) may be
The ice and rain protection system enables unrestricted operation in icing
used to select the probe heating ON with the engines shut down.
conditions and heavy rain.
For anti-icing, hot air or electrical heating protects critical areas of the WINDSHIELD ANTI ICE PROTECTION
aircraft. Electrical heating is provided for windshield anti-icing and cockpit
The different subsystems of the ice and rain protection system are: side window de-fogging. The front windshields and side windows are
- wing ice protection, heated AUTOMATICALLY when at least one engine is running. The
- engine air intake ice protection, PROBE/WINDOW HEAT pushbutton switch (normally in the AUTO
- probe ice protection, position) may be used to select the window heating ON with the
- windshield ice and rain protection, engines shut down.
- drain mast ice protection,
- ice detection system (optional), DRAIN MAST ICE PROTECTION
- water and waste system ice protection (some are optional). When the electrical system is powered, the waste water Drain Masts
are also electrically heated. The Drain Mast Heating is switched ON
WING ANTI ICE PROTECTION
when the temperature is below a specific value. It is not always in
Hot air from the pneumatic system is provided for the anti-icing of operation. There are two Drain Masts located on the lower fuselage
the three outboard leading edge slats (3, 4 and 5) of each wing. Bleed forward and aft sections. Two Control Units, located in the cargo
air from the engines or the APU is supplied to each wing through a compartments, control the Heating of the FWD and AFT Drain Masts.
pressure regulating and shut off valve. Wing anti-ice supply to both
wings is controlled by a single pushbutton switch on the overhead
ANTI ICE panel.
U5F07351 - u1PT1TO - UM30BA000000002

ENGINE AIR INTAKE ANTI ICE PROTECTION

Each engine air intake is protected from ice by an independent air
bleed supply from the high-pressure compressor of that engine. The
air is supplied through the engine air intake anti-ice valve. Engine
anti-ice is manually selected by the crew and is available in flight or
on the ground with the engine running.
PROBE ICE PROTECTION
In order to provide reliable information for the air data systems, the
air data probes are heated AUTOMATICALLY when at least one
engine is running. Ice protection of the Angle Of Attack (AOA)
CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  ICE AND RAIN PROTECTION LEVEL 2 (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 2
 Single Aisle TECHNICAL TRAINING MANUAL
U5F07351 - u1PT1TO - UM30BA000000002

SYSTEM OVERVIEW - WING ANTI ICE PROTECTION ... DRAIN MAST ICE PROTECTION

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  ICE AND RAIN PROTECTION LEVEL 2 (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 3
 Single Aisle TECHNICAL TRAINING MANUAL

ICE AND RAIN PROTECTION LEVEL 2 (2)

MEL/DEACTIVATION
WING ICE PROTECTION
In case of failure, the aircraft may be dispatched per Minimum
Equipment List with the RH WING anti-ice valve deactivated in the
OPEN position or either valve in the CLOSED position. If the valve
is deactivated OPEN, the associated engine bleed switch must be
selected OFF until after takeoff. A flight manual performance penalty
is applied (fuel consumption is increased by   1%). If the valve is
deactivated CLOSED, the aircraft may not be flown into icing
conditions.
Procedure:
- Install zero-locking tool on slat/flap lever to prevent movement,
- Depressurize bleed air system,
- Remove access panel on wing lower surface,
- Move the valve indicator to the required position and install the
locking screw OR,
- Move the valve indicator to the required position and install the
locking plate.
U5F07351 - u1PT1TO - UM30BA000000002

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  ICE AND RAIN PROTECTION LEVEL 2 (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 4
 Single Aisle TECHNICAL TRAINING MANUAL
U5F07351 - u1PT1TO - UM30BA000000002

MEL/DEACTIVATION - WING ICE PROTECTION

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  ICE AND RAIN PROTECTION LEVEL 2 (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 5
 Single Aisle TECHNICAL TRAINING MANUAL

ICE AND RAIN PROTECTION LEVEL 2 (2)

MEL/DEACTIVATION (continued)
ENGINE AIR INTAKE ICE PROTECTION
In case of failure, the aircraft may be dispatched per Minimum
Equipment List with one ENGINE anti-ice valve deactivated in the
OPEN or CLOSED position. If the valve is deactivated OPEN, a Flight
Manual performance penalty must be applied. Based on temperature
and altitude, the maximum weight, takeoff speeds and fuel
consumption will be adjusted. If the valve is deactivated CLOSED,
the aircraft may not be flown into icing conditions.
Procedure:
- Full Authority Digital Engine Control (FADEC) ground power OFF,
- open RH fan cowl,
- move the manual override to the required position.
Lock in place with the locking pin, for CFM and V2500 engines. For
PW6000 engines, the air intake anti-ice valve is locked manually with
the locking lever in the OPEN position or the CLOSED position.
U5F07351 - u1PT1TO - UM30BA000000002

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  ICE AND RAIN PROTECTION LEVEL 2 (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 6
 Single Aisle TECHNICAL TRAINING MANUAL
U5F07351 - u1PT1TO - UM30BA000000002

MEL/DEACTIVATION - ENGINE AIR INTAKE ICE PROTECTION

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  ICE AND RAIN PROTECTION LEVEL 2 (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 7
 Single Aisle TECHNICAL TRAINING MANUAL

ICE AND RAIN PROTECTION LEVEL 2 (2)

MEL/DEACTIVATION (continued)
DRAIN MAST ICE PROTECTION
In case of a failure of a drain mast heater, the fault will be displayed
on the Flight Attendant Panel (FAP) of the Cabin Intercommunication
Data System (CIDS). The aircraft may be dispatched per Minimum
Equipment List with the drain mast heater inoperative. The water
supply to the LAVatory(ies) (LAV(s)) and galley which use the failed
drain mast must be shut off. As a result, the LAV(s). will not be usable
and must be secured closed and locked.
U5F07351 - u1PT1TO - UM30BA000000002

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  ICE AND RAIN PROTECTION LEVEL 2 (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 8
 Single Aisle TECHNICAL TRAINING MANUAL
U5F07351 - u1PT1TO - UM30BA000000002

MEL/DEACTIVATION - DRAIN MAST ICE PROTECTION

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  ICE AND RAIN PROTECTION LEVEL 2 (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 9
 Single Aisle TECHNICAL TRAINING MANUAL

ICE AND RAIN PROTECTION LEVEL 2 (2)

MAINTENANCE TIPS
When the aircraft is parked, it is recommended to install protective covers
on the air data probes (static ports, pitot probes, AOA probes, TAT
probes). The protective covers help protect the probes from contamination.
The covers should be marked with REMOVE BEFORE FLIGHT. Ground
personnel must insure that the covers are removed before flight or before
power is applied to the probes (engine start or ground test).
The probe heat system operates automatically to power the air data probe
heaters when at least one engine is running. It is also designed to operate
automatically when the aircraft is in flight. During the troubleshooting
and the on ground operations, observe the following precautions:
- if the Probe Heat Computer (PHC) power supply C/B is pulled, the
PHC internal relay will relax and the related probes will be heated. Make
sure to pull ALL of the associated probe heat C/B's (Static supply
(28VDC), AOA supply, Pitot supply & TAT supply (all 115 VAC)).
- if the Engine Interface Unit (EIU) power supply C/B is pulled, the PHC
will sense an "engine running" condition and the probes will be heated.
Make sure to pull ALL of the probe heat C/B's (Static supply (28VDC),
AOA supply, Pitot supply & TAT supply (all 115 VAC)).
- if the C/B of the LGCIU is pulled, it simulates FLIGHT situation. So
the probe heating is also switched ON.
U5F07351 - u1PT1TO - UM30BA000000002

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  ICE AND RAIN PROTECTION LEVEL 2 (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 10
 Single Aisle TECHNICAL TRAINING MANUAL
U5F07351 - u1PT1TO - UM30BA000000002

MAINTENANCE TIPS

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  ICE AND RAIN PROTECTION LEVEL 2 (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 11
 Single Aisle TECHNICAL TRAINING MANUAL

SYSTEM PRESENTATION (2)

GENERAL TEST
The wastewater from the galley and lavatory compartment washbasins To perform a complete test of the drain mast system, two tests must be
is dumped overboard through drain masts. carried out, one from the MCDU, and the second one on each CU. If the
test is satisfactory:
CONTROL SUPPLY - on the MCDU, the message "TEST OK" is displayed,
- on the front face of the CU, the HTR and CU lights are ON as long as
To protect drain masts against ice formation, electrical heating, through
the associated TEST P/BSW is pressed in.
an automatically controlled system, is supplied when the A/C is
If we have a fault on that system, the information is indicated by a CAUT
electrically supplied.
light on the FAP and can be seen on the SYSTEM INFO, on page
USERS "DRAINMAST FAIL>CHECH WASTE WATER OVERFLOW FWD
(AFT)".
The flexible heater foil, bonded on the drain mast tube, is temperature
regulated via a sensor and powered by the drain mast heating Control
Unit (CU). The AC power supply line, within the drain mast, is installed
with a thermal switch opening at 120°C (250°F). It will regulate the
temperature in case of normal temperature control failure.

CONTROL UNIT
The CU regulates the temperature of the drain mast tube. The correct
operation of the system is monitored by the BITE function of the CU.
Each CU regulates the heating temperature of the associated drain mast
U5F07351 - u1PT1TO - UM30P6000000002

tube between 6°C (43°F) and 10°C (50°F).

MONITORING
The system status is sent to the Cabin Intercommunication Data System
(CIDS) for indication on the Flight Attendant Panel (FAP). The failure
of the Heater (HTR) or CU is indicated on the FAP by a CIDS CAUTion
light, and on the front face of the CU by HTR and CU lights. The drain
mast data is stored in the Centralized Fault Display Interface Unit
(CFDIU).

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  SYSTEM PRESENTATION (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 12
 Single Aisle TECHNICAL TRAINING MANUAL
U5F07351 - u1PT1TO - UM30P6000000002

GENERAL ... TEST

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  SYSTEM PRESENTATION (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 13
 Single Aisle TECHNICAL TRAINING MANUAL

SYSTEM PRESENTATION (2)

GENERAL
The potable and waste water lines in sections 13 and 14 are insulated and
electrically heated to prevent ice formation in or around the water lines.
The system comprises a control unit and heater assemblies associated to
two sensors.

CONTROL SUPPLY
Each system operates as soon as the A/C is electrically supplied.

CONTROL UNIT
Each control unit regulates the temperature range of each group of heater
assemblies via their respective sensor.

TEST
A manual test of the system is available via a P/B located on the control
unit. On the front face of the control unit, two green "OK" LEDs come
on if the test is satisfactory.
U5F07351 - u1PT1TO - UM30P7000000001

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  SYSTEM PRESENTATION (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 14
 Single Aisle TECHNICAL TRAINING MANUAL
U5F07351 - u1PT1TO - UM30P7000000001

GENERAL ... TEST

CMQ A330/A340 to A319/320/321 (IAE V2500/ME) T1 (Lvl 2&3)  SYSTEM PRESENTATION (2) Sep 17, 2007
30 - ICE & RAIN PROTECTION Page 15
 AIRBUS S.A.S.
31707 BLAGNAC cedex, FRANCE
STM
REFERENCE U5F07351
SEPTEMBER 2007
PRINTED IN FRANCE
AIRBUS S.A.S. 2007
ALL RIGHTS RESERVED

AN EADS JOINT COMPANY

WITH BAE SYSTEMS