-
the interface connector.
 You start the BITE test when you push the TEST pushbutton, located on the
 top of the control unit 3DW.
 Two Light Emmiting Diodes (LED) show the correct status of the system.

 POTABLE WATER ICE PROTECTION - ADJUSTMENT/TEST
______________________________________________
 TASK 30-73-00-740-001
 BITE Test of the Potable Water Ice-Protection

 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
 from the External Power FOR FIN 3DW 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the
 Yellow Electric Pump
 3. Job Set-up
__________ R **ON A/C 001-049, 051-099, 101-105,
 Subtask 30-73-00-865-052
R A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION FIN LOCATION -------------------------------------------------------------------------------2000VU WATER SYSTEM ICE PROT - HTR 1DW D07 2000VU WATER SYSTEM ICE PROT - CTL 2DW D08 **ON A/C 106-149, 211-299,

 Subtask 30-73-00-865-052-D
R A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------
PANEL DESIGNATION FIN LOCATION
 -------------------------------------------------------------------------------
2000VU POT/WASTE WIP - HEATER CTL 2DW A01
 2000VU POT/WASTE WIP - HEATER LINE 1DW A02
 **ON A/C 151-199,
 Subtask 30-73-00-865-052-C
R A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------
PANEL DESIGNATION FIN LOCATION
 -------------------------------------------------------------------------------
2000VU POT/WASTE WIP - HEATER CTL 2DW D07
 2000VU POT/WASTE WIP - HEATER LINE 1DW A01
 **ON A/C 201-210,
 Subtask 30-73-00-865-052-A
R A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------
PANEL DESIGNATION FIN LOCATION
 -------------------------------------------------------------------------------
2000VU POT/WASTE WIP - HEATER CTL 2DW A02
 2000VU POT/WASTE WIP - HEATER LINE 1DW A03

 **ON A/C 301-399,
 Subtask 30-73-00-865-052-E 
R  A. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION FIN LOCATION -------------------------------------------------------------------------------2000VU POT WATER ICE PROT - CTL 2DW A02 2000VU POT WATER ICE PROT - LINE 1DW A03 
R  **ON A/C 401-499, 
R  Subtask 30-73-00-865-052-B 
R  A. Make sure that this(these) circuit breaker(s) is(are) closed: 
R R R R R  -------------------------------------------------------------------------------PANEL DESIGNATION FIN LOCATION -------------------------------------------------------------------------------2000VU POT WATER ICE PROT - CTL 2DW A01 2000VU POT WATER ICE PROT - LINE 1DW A02
 **ON A/C ALL
 Subtask 30-73-00-010-051 
R  B. Get Access
 (1) FOR 3DW - Open the FWD cargo-compartment door (Ref. TASK 52-30-00-860-001). - Remove the sidewall panel 132JW.

 4. Procedure
_________

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 Subtask 30-73-00-740-050
 A. Do this test.
 NOTE : The control unit 3DW controls and monitors heaters of the
____ potable-water ice protection system (HTR I/II) and of the waste-water ice protection system (HTR III/IV). The result of HTR III/IV is indicated in parentheses, because the principal interest of this test is the potable-water ice protection.
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the control unit 3DW:  On the control unit 3DW:
 -Push and hold the TEST  - The green LED I/II (III/IV) comes on. pushbutton switch.
　
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