3
If space is limited, the bowl can be rotated 90 degrees
(a longer hose [#CH42] is required, contact Raritan
Technical Support).
PLUMBING
WARNING:
If the toilet is mounted at or below
the waterline, install a vented loop in the discharge
line and between the pump and back of the bowl.
The top of the loop (see loop manufacture
specifications) should be at least 4” (10 cm) above
the waterline when the boat is at the greatest angle
of heel (see Fig. #3).
Whenever possible hose connections should be
secured using two all-stainless steel hose clamps.
Integrity of clamps, hoses and fittings should be
checked periodically. Fittings and 90 degree bends
should be kept to a minimum to maintain proper
performance.
1. Intake Lines:
A 3/4” (19mm) thru-hull fitting
Connect a 3/4” (19 mm) I.D. reinforced suction
hose between the seacock and intake pump.
NOTE: An intake In-Line strainer (#163000) is
recommended to help avoid the accumulation of
debris in the intake pump.
2.
Discharge Lines:
Connect quality sanitation rated
1 1/2” (38 mm) I.D. hose (#SH) to the discharge
fitting on the toilet and connect to the treatment
system, holding tank, or discharge thru-hull
fitting, as appropriate.
TIP: To retain water in the bowl
install a vented
loop in the discharge line.
NOTE: Discharge of raw untreated sewage is
restricted in all U. S. waters inside the three-mile
limit. “Y” Valves, if installed, must direct toilet
discharge to a USCG approved treatment system
or holding tank and must be secured in that
position while inside the three-mile limit.
WIRING
WARNING:
RISK OF FIRE - The Crown Head
must be wired to a separately fused circuit with
no other electrical appliances on the circuit.
1. Measure wire distance from power source to
toilet and back, refer to Specification Table for
proper wire gauge and circuit breaker/fuse sizes.
12, 24 and 32 VDC Crown Head Units:
Wire as
per Fig. #4. (For momentary push button switch
operation.)
Crown Head with Lectra/San
®
MC
and Vented Loops
Crown Head with LECTRA/SAN
®
MC,
Holding Tank and "Y" Valve
Fig. #2 Above Waterline Installation Shown
Lectra/San EC
Treatment Unit
To
Deck
Pumpout
Lectra/San EC
Treatment Unit
Crown Head
Holding Tank
Discharge
Thru-Hull
and Seacock
Crown Head
Intake
Thru-Hull and
Seacock
Discharge
Thru-Hull
And Seacock
Intake
Thru-Hull
and Seacock
Vented Loop
Pushbutton
Switch
(PBS)
3 Amp Fuse or
Circuit Breaker
Main Fuse or
Circuit Breaker
(See Specification Chart)
Pos Voltage from
Battery or DC Power
Panel
Battery
Lug
Solenoid Relay
(CDS)
#14 Awg
Wire
Ground
-
(Neg)
Crown Head
+
(Pos)
“Y” Valve
Vented
Loop
Drawing Not to Scale
Fig. #3 At or Below Waterline Installation Shown
Drawing Not to Scale
Fig. #4 Wiring the Crown Head (DC Unit
with Momentary Pushbutton Switch
and seacock located in an accessible area is
required to supply flush water to the bowl.
