Removal of the Inner Line Heater

TASK 30-73-54-000-002-A
Removal of the Inner Line Heater

FIN: 24DW ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Referenced Information

REFERENCE	DESIGNATION
TASK 12-24-38-680-001-A	Draining of the Potable Water System (with Electrical Power)
TASK 12-24-38-680-002-A	Draining of the Potable Water System (without Electrical Power)
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
Heater-Inner Line

3. Job Set-up
Subtask 30-73-54-680-051-A ** ON A/C NOT FOR ALL

A. Drain the potable water system (Ref. AMM TASK 12-24-38-680-001) or (Ref. AMM TASK 12-24-38-680-002).

Subtask 30-73-54-861-051-A ** ON A/C NOT FOR ALL

B. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 30-73-54-865-053-A ** ON A/C NOT FOR ALL

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
2000VU	POT/WASTE WIP-HEATER-LINE	21DW	A03
2000VU	POT/WASTE WIP-HEATER-LINE	1DW	A02
2000VU	POT/WASTE WIP-HEATER-CTL	2DW	A01
** ON A/C NOT FOR ALL
2000VU	POT WIP-HEATER-LINE	21DW	A03
2000VU	POT WIP-HEATER-LINE	1DW	A02
2000VU	POT WIP-HEATER-CTL	2DW	A01

Subtask 30-73-54-010-051-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Open the door of the lavatory.
(2) Remove the two screws under the toilet bowl, then remove the toilet shroud.

4. Procedure
Subtask 30-73-54-020-051-A ** ON A/C NOT FOR ALL

A. Removal of the Inner Line Heater
(1) Disconnect the electrical connector (1).
(2) Put CAP - BLANKING on the electrical connector and the electrical receptacle.
(3) Remove the adhesive tape (5) that holds the sleeve (4).
(4) Remove the sleeve (4).
(5) Loosen the nut (3) and remove the inner line heater (2).

[Rev.10 from 2021] 2026.04.01 00:32:56 UTC