WARNING : DO NOT TOUCH THE WATER HEATER UNTIL IT IS SUFFICIENTLY COOL TO
_______
 PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).

 Subtask 38-12-16-020-052
 A. Removal of the Water Heater (1)
 (1)
 Put a CONTAINER 1 L (1/4 USGAL) below the water heater to collect the unwanted water.

 (2)
 Disconnect the electrical connector (8).

 (3)
 Put blanking caps on the disconnected electrical connectors.

 (4)
 Remove the nut (5) and disconnect the bonding strap (6).

 (5)
 Disconnect the pipes (3) and (4) from the water heater (1).

 (6)
 Remove the clamps (2).

 (7)
 Remove the water heater (1).

 (8)
 Put blanking plugs on the disconnected line ends.

 (9)
 Dry the area with a lint free cloth MISCELLANEOUS (Material No. 19-003).

 Water Heater
 Figure 401/TASK 38-12-16-991-001

R 1EFF : 001-003, 051-052, 1 38-12-16Page 405 1 1 May 01/05 1 1 1CES 1

 Water Heater
 Figure 401A/TASK 38-12-16-991-001-A

R 1EFF : 004-049, 053-099, 101-149, 151-199, 1 38-12-16Page 406 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1 TASK 38-12-16-400-001

 Installation of the Water Heater
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE  QTY DESIGNATION
 -------------------------------------------------------------------------------
R No specific  Torque Wrench : range 0.00 to 1.20 m.daN
R (0.00 to 9.00 lbf.ft) No specific Torque Wrench : range 0.20 to 3.60 m.daN
 (2.00 to 26.00 lbf.ft)
 B. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
12-15-38-613-001  Fill the Potable Water Tank System (Aircraft
 Electrical Power Available)

 20-28-00-912-004  Electrical Bonding of Components With Conductive Bolts and Screws and Bonding Straps in the Fuselage and in the Wings (this does not include the tanks)-
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 38-10-00-614-001 Pressurization of the Potable Water System from a
 Ground Air Supply
 38-10-00-614-002 Depressurization of the Potable Water System
 38-12-00-710-004 Operational Test of a Potable Water Heater

R **ON A/C 001-003, 051-052,
 38-12-16-991-001  Fig. 401

 -------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------

R **ON A/C 004-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
 38-12-16-991-001-A Fig. 401A
 **ON A/C ALL
 3. Job Set-up
__________
 Subtask 38-12-16-860-051
 A. Aircraft Maintenance Configuration
 (1)
 Make that the electrical circuits are energized (Ref. TASK 24-41-00-861-002).

 (2)
 Make sure that the potable water system is depressurized (Ref. TASK 38-10-00-614-002).

 **ON A/C 001-049, 051-099, 101-105,
 Subtask 38-12-16-865-059-B
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and
 tagged -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------2000VU LAV FWD - HOT WATER 1MB F02 2001VU LAVATORY AFT HOT WATER 2MB B02 2001VU LAVATORY AFT HOT WATER 9MB B03
 **ON A/C 106-149, 201-299,
 Subtask 38-12-16-865-059-A
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged

 -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------2000VU LAV FWD - HOT WATER A 1MB F02 2001VU LAVATORY AFT HOT WATER D 2MB B02 2001VU LAVATORY AFT HOT WATER E 9MB B03

R **ON A/C 151-199, 401-499,
 Subtask 38-12-16-865-059
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and
 tagged -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------2000VU LAV FWD - HOT WATER 1MB F02 2001VU LAVATORY AFT HOT WATER D 2MB B02 2001VU LAVATORY AFT HOT WATER E 9MB B03
　
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