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FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA
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R 55DU HEATER,TAPE 153 30-71-00
R **ON A/C 001-049, 101-105,
R 3. Description___________
(Ref. Fig. 001, 002)
The drainage system of each cargo compartment has filters, filter housings,
drain funnels, elbows and flexible hoses. Short pieces of flexible hose also
make connection sleeves. The filter and filter housing are installed on the
drain outlets in the cargo compartments. The filter prevents a blockage of
the drain system. The drain funnels are installed beneath the drain outlets.
Flexible hoses connect the drain funnels to the elbows. From the elbows the
flexible hoses end at a mutual tee. The flexible hoses are secured in
position with straps.
R **ON A/C 051-051,
R 3. Description___________
R (Ref. Fig. 001A, 002, 003, 004, 005, 006)
R
R For the FWD and AFT Cargo Compartments
R The heated drain system for the FWD cargo compartment is installed between
R FR30 and FR34. The heated drain system for the AFT cargo compartment is
R installed between FR54 and FR59.
R The drain system of each cargo compartment has filters, filter housing,
R drain funnels, electrically heated drain pipes and an air-stop drain valve.
R The filters and filter housing are installed on the drain outlets in the
R cargo compartments. The filters prevent a blockage of the drain system. The
R drain funnels are installed below the drain outlets. Heated drain pipes are
R connected to the drain funnels and from there to a mutual junction. From the
R junction, a drain pipe section is attached to the inlet port of the air-stop
R drain valve.
R
R For the FWD Cargo Compartment
R The drain pipe section attached to the outlet port of the air-stop drain
R valve connects the drain system with the waste-water drain system of the FWD
R lavatory/galley.
R
R For the AFT Cargo Compartment
FWD Cargo Compartment - Drain System Figure 001
R EFF : 001-049, 101-105, 25-53-00 Page 3 May 01/05
CES
R R FWD Cargo Compartment - Drain System Figure 001A
EFF : 051-051, 25-53-00 Page 4 May 01/05
CES
AFT Cargo Compartment - Drain System
Figure 002
CES
R AFT Cargo Compartment - Drain Valve Insulation Box
R Figure 003
EFF : 051-051, 25-53-00 Page 6
May 01/05
CES
R FWD Cargo Compartment - Drain Valve Insulation Box
R Figure 004
EFF : 051-051, 25-53-00 Page 7
May 01/05
CES
R R AFT Cargo Compartment - Clamps Figure 005
EFF : 051-051, 25-53-00 Page 8 May 01/05
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R R FWD Cargo Compartment - Clamps Figure 006
EFF : 051-051, 25-53-00 Page 9 May 01/05
CES
R The drain pipe sections attached to the outlet port of the air-stop drain
R valve connects the drain system to the drain mast 24DU.
R
R For the FWD and AFT Cargo Compartments
R Electrical strip heating-elements heat the drain pipes and the lower part of
R the drain funnels. Adhesive tape retains the strip heating-elements in
R position on the drain pipes. The drain pipes and funnels are insulated and
R electrically heated to prevent ice formation on or around the pipes and
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