FED 401-405,407-414,423-436,443,445-452 TOILET SYSTEM - DESCRIPTION FED 431-435 1. General The toilet system is provided for the convenience of the passengers and crew. It comprises three individual subsystems - FWD, MID and AFT. Each subsystem contains toilet units, lines, valves and service panels, and has a waste tank flushing facility. 1. FED 401-405,407-414,423-430,436,443,445-452 General The toilet system is provided for the convenience of the passengers and crew. It comprises two individual subsystems - FWD and AFT. Each subsystem contains toilet units, lines, valves and service panels, and has a waste tank flushing facility. 2. FED 401-405,407-414,423-436,443,445-452 Component Location FIN FUNCTIONAL DESIGNATION PANEL ZONE ACCESS DOOR ATA REF. Lavatory A 3MV 5MG1 6MG1 19MG5 383689 TRANSMITTER MOTOR-FLUSH TIMER-TOILET SWITCH-FLUSH TOILET ASSY 221 221 221 221 221 (Ref. 38-33-11 ) (Ref. 38-31-15 ) (Ref. 38-31-13 ) (Ref. 38-31-11 ) Lavatory C Not applicable FED 425-430,443,445 Lavatory J 12MV 5MG2 6MG2 19MG6 TRANSMITTER MOTOR-FLUSH TIMER-TOILET SWITCH-FLUSH TOILET ASSY (Ref. 38-33-11 ) (Ref. 38-31-15 ) (Ref. 38-31-13 ) (Ref. 38-31-11 ) Page 1 of 17
FIN 383698 FUNCTIONAL DESIGNATION PANEL ZONE ACCESS DOOR ATA REF. Lavatory H 15MV TRANSMITTER 5MG3 MOTOR-FLUSH 6MG3 TIMER-TOILET 19MG7 SWITCH-FLUSH 383703 TOILET ASSY Lavatory K 16MV TRANSMITTER 5MG4 MOTOR-FLUSH 6MG4 TIMER-TOILET 19MG8 SWITCH-FLUSH 383699 TOILET ASSY FED 401-405,407-414,423-430,443,445-452 Lavatory D 7MV 16MG1 17MG1 19MG1 383616 Lavatory D Not applicable TRANSMITTER MOTOR-FLUSH TIMER-TOILET SWITCH-FLUSH TOILET ASSY FED 401-405,407-414,423-436,443,445-452 Lavatory E 7MV TRANSMITTER 16MG2 MOTOR-FLUSH 17MG2 TIMER-TOILET 19MG2 SWITCH-FLUSH 383616 TOILET ASSY Lavatory F 9MV TRANSMITTER 16MG3 MOTOR-FLUSH 17MG3 TIMER-TOILET 232 232 232 232 232 (Ref. 38-33-11 ) (Ref. 38-31-15 ) (Ref. 38-31-13 ) (Ref. 38-31-11 ) (Ref. 38-33-11 ) (Ref. 38-31-15 ) (Ref. 38-31-13 ) (Ref. 38-31-11 ) (Ref. 38-33-11 ) (Ref. 38-31-15 ) (Ref. 38-31-13 ) (Ref. 38-31-11 ) (Ref. 38-33-11 ) (Ref. 38-31-15 ) (Ref. 38-31-13 ) (Ref. 38-31-11 ) (Ref. 38-33-11 ) (Ref. 38-31-15 ) (Ref. 38-31-13 ) Page 2 of 17
FIN FUNCTIONAL DESIGNATION PANEL ZONE ACCESS DOOR ATA REF. 19MG3 SWITCH-FLUSH 383617 TOILET ASSY Lavatory G 9MV TRANSMITTER 16MG4 MOTOR-FLUSH 17MG4 TIMER-TOILET 19MG4 SWITCH-FLUSH 383617 TOILET ASSY (Ref. 38-31-11 ) (Ref. 38-33-11 ) (Ref. 38-31-15 ) (Ref. 38-31-13 ) (Ref. 38-31-11 ) FED 401-405,407-414,423,446-452 (Ref. Fig. 001 ) FED 425-430,443,445 (Ref. Fig. 002 ) (Ref. Fig. 003 ) A. FED 401-405,407-414,423-436,443,445-452 Each lavatory contains a toilet unit which consists basically of a waste tank with quick-disconnect toilet bowl, separator, flush motor and timer, check valve, vent fitting, control cables and toilet drain valve. The single toilet units are secured with hold-down rods to the lavatory floor. The double toilet units are secured with bolts to hard points in the floor beam. The waste tanks are installed in a sealed structure as a corrosion preventive measure. A toilet shroud is installed in each lavatory to cover the waste tank. B. Leading Particulars, Toilet Unit Electrical power rating: 115/200 V, 400 Hz 3-Phase, 2.3 Amp/ Phase (max.) Operation current 1.0 Amp/Phase Flush Cycle: Delay between cycles: 10 sec. 6 sec. Flush pump capacity: 8 l (2 US gal.)/flush cycle Page 3 of 17
Single toilet prime charge: Double toilet prime charge: 9.5 l max. (2.5 US gal.) 19 l max. (5 US gal.) FED 401-405,407-409,423-426,428,431-435,443,445-452 Single toilet waste tank capacity: 50 l (13.2 US gal.) nominal 58.7 l (15.5 US gal.) FED 410-414,427,429-430,436 Single toilet waste tank capacity: 47 l (12.4 US gal).) nominal 51.0 l (13.4 US gal.) FED 401-405,407-414,423-436,443,445-452 Double toilet waste tank capacity: 100 l (26.5 US gal.) nominal 120 l (13.6 US gal.) FED 401-405,407-409,423-426,428,431-435,443,445-452 NOTE : To ensure proper flushing during climb with aircraft in a 3- nose up attitude, prime level may be increased to 12.5 l (3.3 US gal.) single toilet and 24 l (6.4 US gal.) double toilet. FED 401-405,407-414,423-436,443,445-452 (Ref. Fig. 004 ) 3. Component Description A. Waste Tank The tank assembly consists of a carbon fiber tank with moldedin structural reinforcement and a top. B. Toilet Bowl The toilet bowl is made of polished stainless steel. A stainless steel flapper type separator assembly is hinged at the bottom of the bowl. The separator assembly provides an effective seal against tank odors and fluid splash from the tank in the bowl. The bowl is V-clamp mounted on top of the tank. C. Flush Motor The flush motor is mounted by a V-clamp on the tank with the filter and the pump submerged in the flushing fluid. Page 4 of 17
D. Toilet Drain Valve A spring-loaded, cable-actuated drain valve seals the tank to prevent leakage of fluid and waste, and permits draining and cleaning of the toilet unit during ground servicing. The drain valve is encased in a cone shaped, collapsible boot of molded elastomer. E. Toilet Timer A timer, which controls the operation of the flush motor, is located on the top of the tank. F. Control Cable The control cable is connected with the toilet service panel and the toilet drain valve. G. Prime Level Indicating System For servicing, the toilet system is provided with a prime level indicating system. Indication lights come on when prime level has been attained. H. FED 401-405,407-414,425-436,443,445-452 Waste Dump Valve The manually operated waste dump valve prevents leakage from waste drain line outlet. 4. FED 401-405,407-414,423-436,443,445-452 Operation A. Flush Cycle FED 401-405,407-414,423,446-452 (Ref. Fig. 005 ) FED 425-430,443,445 (Ref. Fig. 006 ) (Ref. Fig. 007 ) FED 401-405,407-414,423-430,443,445-452 (Ref. Fig. 008 ) (Ref. Fig. 009 ) FED 423 Each toilet subsystem is equipped with a service panel. The service panels are equipped with the following: Page 5 of 17
- Flush/Fill Connection - Leakage Drain - Lavatory (Toilet) Drain Connection - Cable Control Handle (for toilet drain valve) Placards are installed on each service panel stating primingprecharge quantities, max. pressure fill and drain procedures. To close the service panel doors, the cable control handles and caps must be closed and locked in position. FED 401-405,407-414,425-436,443,445-452 Each toilet subsystem is equipped with a service panel. The service panels are equipped with the following: - Flush/Fill Connection - Leakage Drain - Lavatory (Toilet) Drain Connection - Cable Control Handle (for toilet drain valve) - Cable Control Handle (for waste dump valve) Placards are installed on each service panel stating primingprecharge quantities, max. pressure fill and drain procedures. To close the service panel doors, the cable control handles and caps must be closed and locked in position. A. FED 401-405,407-414,423-426,428-435,443,445-452 Flush Cycle The flush cycle is initiated by pressing the flush switch in the lavatory compartment. The pump, begins to pump the fluid through a spray channel, located under the upper rim of the toilet bowl, and a vigorous flushing of the toilet bowl takes place. The static filter basket prevents clogging of the pump. The automatic reset timer regulates the duration of the flush cycle. B. Waste Tank Draining and Rinsing During servicing, the flush/fill and drain connections are connected to the toilet service vehicle and the spring-loaded toilet drain valve is opened. After completion of drainage, the tank is rinsed by water with a max. pressure of 35 psi (2.42 bar). The drain valve of the toilet unit is closed again when the rinsing procedure is completed and the toilet tank is precharged with the prescribed amount of flush fluid. Page 6 of 17
C. Waste Tank Ventilation The waste tank vent fitting is connected to the air extraction duct of the galley and lavatory ventilation system by a pipe. Extracted air is discharged overboard. D. Prime Level Indicating System (Ref. 38-33-00 ) With power supply on, and the prime flushing fluid served, the prime level sensor in the waste tank gives signal and the indicator light illuminates in the service panel when the required level is attained. A. FED 401-405,407-414,423-430,436,443,445-450 POST SB 21-2029 for A/C 401-405,407-414,423-426,428-430,443,445-450 Flush Cycle The flush cycle is initiated by pressing the flush switch in the lavatory compartment. The pump, begins to pump the fluid through a spray channel, located under the upper rim of the toilet bowl, and a vigorous flushing of the toilet bowl takes place. The static filter basket prevents clogging of the pump. The automatic reset timer regulates the duration of the flush cycle. B. Waste Tank Draining and Rinsing During servicing, the flush/fill and drain connections are connected to the toilet service vehicle and the spring-loaded toilet drain valve is opened. After completion of drainage, the tank is rinsed by water with a max. pressure of 35 psi (2.42 bar). The drain valve of the toilet unit is closed again when the rinsing procedure is completed and the toilet tank is precharged with the prescribed amount of flush fluid. C. Toilet Bowl Ventilation The toilet bowl vent is connected to the air extraction duct of the galley and lavatory ventilation system by a pipe. Extracted air is discharged overboard. D. Prime Level Indicating System (Ref. 38-33-00 ) With power supply on, and the prime flushing fluid served, the prime level sensor in the waste tank gives signal and the indicator light illuminates in the service panel when the required level is attained. FED 436,451-452 POST SB 21-2040 for A/C 436,451-452 A. Flush Cycle The flush cycle is initiated by pressing the flush switch in the lavatory compartment. The pump, begins to pump the fluid Page 7 of 17
through a spray channel, located under the upper rim of the toilet bowl, and a vigorous flushing of the toilet bowl takes place. The static filter basket prevents clogging of the pump. The automatic reset timer regulates the duration of the flush cycle. B. Waste Tank Draining and Rinsing During servicing, the flush/fill and drain connections are connected to the toilet service vehicle and the spring-loaded toilet drain valve is opened. After completion of drainage, the tank is rinsed by water with a max. pressure of 35 psi (2.42 bar). The drain valve of the toilet unit is closed again when the rinsing procedure is completed and the toilet tank is precharged with the prescribed amount of flush fluid. D. Prime Level Indicating System (Ref. 38-33-00 ) With power supply on, and the prime flushing fluid served, the prime level sensor in the waste tank gives signal and the indicator light illuminates in the service panel when the required level is attained. Page 8 of 17
FED 401-405,407-414,423,446-452 Figure 001 Figure 001. Component Location (Sheet 1) Page 9 of 17
FED 425-430,443,445 Figure 002 Figure 002. Component Location (Sheet 1) Page 10 of 17
Figure 003 Figure 003. Component Location (Sheet 1) Page 11 of 17
FED 401-405,407-414,423-436,443,445-452 Figure 004 Figure 004. Toilet System - Block Diagram (Sheet 1) Page 12 of 17
FED 401-405,407-414,423,446-452 Figure 005 Figure 005. Electrical - Schematic (Sheet 1) Page 13 of 17
FED 425-430,443,445 Figure 006 Figure 006. Electrical - Schematic (Sheet 1) Page 14 of 17
Figure 007 Figure 007. Electrical - Schematic (Sheet 1) Page 15 of 17
FED 401-405,407-414,423-430,443,445-452 Figure 008 Figure 008. Electrical - Schematic (Sheet 1) Page 16 of 17
Figure 009 Figure 009. Electrical - Schematic (Sheet 1) Page 17 of 17