Tecma S.r.l.
Via Flaminia | Loc. Castello delle Formiche
05030 Otricoli (TR)
ITALY
T +39 0744 709071
F +39 0744 719833
www.thetfordmarine.com
65
R
ev.
V
03
Design and Flexi Line | instructions for installation and use | ENG
Centralised System - Fresh Water
3.8.1.1
Hydraulic system
The TECMA's toilet flushing cycles use the tank fresh water.
The solenoid valve can be integrated in the toilet, directly connected to the inlet/nozzle via
the supplied black rubber pipe. Alternatively, it can be mounted in the fresh water system
(the one that serves sinks, showers, and other utilities). When the toilet is used, the control
panel opens the solenoid valve through the control unit. The water is supplied via the
autoclave, which pressurises the entire hydraulic system on board. Diagram in section A.3.5.
WARNING:
The recommended system operating pressure is equal to 3 bar
WARNING:
Keep the filters of every solenoid valve clean.
NOTE
: For the installation of the solenoid valve integrated in the WC, it is necessary
to cut 3 cm of black rubber hose connected to the nozzle (eliminating the hose
connector).
3.8.1.2
12V/24V Electrical system
Diagrams in section A.3.6.1/2/3/4. Every control unit is wired by connecting
Black/brown
bowl motor
Black/Blue
solenoid valve
Black/Grey
Tank sensor
Black/Red
Power supply (with fuse on positive)
The autoclave is always live regardless of the sanitary system used. The « BEFORE USE »
button opens the solenoid valve, whilst the « AFTER USE » button starts a program that
opens the solenoid valve, then it activates the pump and lastly activates the solenoid valve
again for the final rinse.
