Systec D-45 - Position and Function; Maintenance Tasks; Drain Cooling (X and E Series)

V/D S ERIES
M ECHANICAL ASSEMBLIES
Revision: 2.1 3-79
3.15 Drain cooling (X and E series)
3.15.1 Position and function
The temperature sensor (TS4) in the autoclave drain monitors the
temperature of the waste water or the escaping steam.
If the measured drain temperature exceeds the set temperature in
parameter 52 (DrnCoolTemp), then cooling water is mixed with the drain
through the valve (Y4).
Fig. 42: Drain cooling: Position on pipe connection diagram
Y4 Drain cooling valve (solenoid valve)
TS 4 Drain temperature sensor
R 3 No-return valve for cooling water
PR2 Pressure reducer for cooling water
C3 Cooling water
C4 Waste water
3.15.2 Maintenance tasks
Check that the drain cooling is working properly to avoid damages to the
customer's drain pipes:
• Connect the PT-100 simulator to the E-Box instead of the temperature
sensor (TS4).
• Use the simulator to switch above and below the switching point for the
cooling water mixture (default = 70 °C, see parameter 52
(DrnCoolTemp)).
• Test the function of the drain cooling valve (Y4).
• Check the temperature sensor (TS4).