(5) Disconnect the water supply line: WARNING : MAKE SURE THAT THE POTABLE WATER SYSTEM IS DEPRESSURIZED. A
_______ PRESSURIZED SYSTEM CAN CAUSE INJURY TO PERSONS WHEN THEY DO WORK ON IT.
 (a) Disconnect the water supply line (2).
 (6)
 Remove the water-heater (4) from the galley.

 (7)
 Put PLUG - BLANKING on the disconnected line ends.

 (8)
 Put CAP - BLANKING on the disconnected electrical connectors.

R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299,
 TASK 25-35-27-400-001
 Installation of the Water Boiler/Heater
 1. Reason for the Job__________________
 Self Explanatory
 2. Job Set-up Information______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
20-21-11-911-001 24-41-00-861-002 24-41-00-862-002 24-42-00-861-001 25-35-00-710-023 38-10-00-614-001 38-10-00-614-002  Tightening Torques for Standard Threaded FastenersEnergize the Aircraft Electrical Circuits from the External PowerDe-energize the Aircraft Electrical Circuits Supplied from the External PowerEnergize the Ground Service Network from the External PowerOperational Test of the Water-Heater/BoilerPressurization of the Potable Water System from a Ground Air SupplyDepressurization of the Potable Water System 
R  **ON A/C 001-049, 101-105,
 25-35-27-991-001-B  Fig. 401 
R  **ON A/C 051-099, 
R  25-35-27-991-001-D  Fig. 401A 
R  **ON A/C 106-149, 151-199, 201-299, 
R  25-35-27-991-001-C  Fig. 401B 

 CES

R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299,
 3. Job Set-up
__________
 Subtask 25-35-27-861-051

 A. Make sure that the ground service network is energized (Ref. TASK 24-42-00-861-001).
 Subtask 25-35-27-865-051
 B. Preparation of the Installation of the Water Heater
 (1)
 On the circuit breaker panel at the related galley:

 (a) Make sure that the related circuit breaker(s) is (are) opened, safetied and tagged.

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

 4. Procedure
_________ R **ON A/C 001-049, 101-105,
 Subtask 25-35-27-420-050-B
 A. Installation of the Water-Heater WARNING : SUPPORT THE UNIT/ASSEMBLY OR IT WILL FALL AND BECOME DAMAGED OR
_______ INJURE PERSONNEL. THE UNIT/ASSEMBLY IS HEAVY.
 (Ref. Fig. 401/TASK 25-35-27-991-001-B)
 (1)
 Remove the blanking caps from the electrical connectors.

 (2)
 Make sure that the electrical connectors are clean and in the correct condition.

 (3)
 Remove the blanking plugs from the disconnected line ends.

 (4)
 Do an inspection of the component interface and/or the adjacent area.

 (5)
 Prevent damage to the component interface and the adjacent area.

R  EFF : 001-049, 051-099, 101-149, 151-199, 25-35-27Page 409 201-299, May 01/05
 CES

 (6) Put the water-heater (4) in position. (7) Connect the electrical connector (3). (8) Connect the water supply line: WARNING : MAKE SURE THAT THE POTABLE WATER SYSTEM IS DEPRESSURIZED. A_______ PRESSURIZED SYSTEM CAN CAUSE INJURY TO PERSONS WHEN THEY DO WORK ON IT.
R  (a) Connect the water supply line (2). (9) Carefully push the water-heater (4) into the galley. (10) Install the screws (1) (Ref. TASK 20-21-11-911-001). **ON A/C 051-099, 106-149, 151-199, 201-299,
 Subtask 25-35-27-420-050-C
 A. Installation of the Water-Heater 
R  **ON A/C 051-099, 
R R  (Ref. Fig. 401A/TASK 25-35-27-991-001-D) **ON A/C 106-149, 151-199, 201-299, 
R R  (Ref. Fig. 401B/TASK 25-35-27-991-001-C) **ON A/C 051-099, 106-149, 151-199, 201-299,
 (1) Remove the blanking caps from the electrical connectors. (2) Make sure that the electrical connectors are clean and in the correct condition.
 (3) Remove the blanking plugs from the disconnected line ends. (4) Do an inspection of the component interface and/or the adjacent area. (5) Prevent damage to the component interface and the adjacent area.

 (6)
 Put the water-heater (4) in position.

 (7)
 Connect the electrical connector (3).

 (8)
 Connect the water supply line: WARNING : MAKE SURE THAT THE POTABLE WATER SYSTEM IS DEPRESSURIZED. A
　
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