2
3. Make a periodic visual check for leaks at the base
of the toilet and at hose connections.
4. Check semiannually to ensure all wire terminals
and junctions are corrosion-free.
5. When boat is not in use, flushing the system with
fresh water will help minimize odors and reduce
mineral buildup.
WINTERIZING
WARNING: If connected to a Lectra/San or
Purasan treatment system there should not be
any antifreeze in the system when activating the
Lectra/San or Purasan. Injury to personnel or
damage to property could result if the Lectra/San
or Purasan is activated with antifreeze in the
system.
Improper winter lay up is a major cause of marine
toilet failures.
1. Close the intake and discharge seacock.
Disconnect and drain the intake and discharge
hoses. Winterize seacocks and hoses.
2. You will need two buckets, three feet of 3/4"
(19mm) hose, three feet of 1 1/2" (38mm) hose
and a quart (.95 liter) of non-toxic antifreeze.
NOTE: Use only non-toxic antifreeze in this unit.
3. Pour about one quart (.95 liter) of non-toxic
antifreeze into one of the buckets. Place intake
hose in this bucket. Place empty bucket under
discharge hose. To ensure antifreeze has
circulation through the entire toilet, flush until
antifreeze is discharged.
4. Antifreeze should remain in the toilet until
recommissioning. This will protect both intake
and discharge sides of the pump. Pouring
antifreeze into the bowl will only protect the
discharge side of the pump, allowing the intake
side to possibly freeze.
NOTE: Holding tanks, seacocks and treatment
systems need to be independently winterized,
stored and recommissioned (see manufacturer’s
instructions).
RECOMMISSIONING
1. Using the buckets, hoses and a gallon of clean
water, flush the antifreeze out of the toilet. Dispose
of antifreeze properly, in accordance with local
and federal regulations.
2. Reconnect the hoses and open both seacocks.
3. Check all connections for leaks with several test
flushes.
SYSTEM COMPONENTS
Before starting installation please be sure that all
parts that were ordered with your model have
been included:
The complete Crown Head unit
includes: bowl, seat and cover, motor assembly,
shroud assembly, siphon and check valve assembly,
Concentrate tank, 2 oz. (59ml) of Concentrate, two
mounting strips and an owner’s manual.
Crown Head units purchased for use with 120/240
volt AC power will also include a rectified
transformer unit (#RTCH24D), with instructions.
INSTALLATION
Read This Entire Section Before Beginning
Installation.
Below water line installations must include vented
loops. The top of the loop must be above the
waterline at maximum heel to prevent siphoning.
(See Fig. #3.)
Additional parts required:
Stainless steel fasteners,
a single pole push button switch (#PBS) and a
continuous duty solenoid (#CDS*) relay
or
Raritime
timer (#RTC*), 1 1/2” (38 mm) I.D. discharge hose
(#SH) and a reinforced 3/4” (19mm) I.D. intake hose,
hose clamps, wire, fuse or circuit breaker (see Crown
Head Specification chart).
Mounting the Crown Head:
Be sure Crown Head
is on solid deck construction in a dry location.
Never
mount the Crown Head where it may be subject
to shower spray or other sources of external water.
Place the supplied rubber mounting strips between
the base plate of the Crown Head and the deck,
allowing air to circulate under the motor to prevent
moisture from accumulating. Use stainless steel
fasteners with a minimum size of 1/4” (6 mm). Allow
sufficient space at the side and rear to connect hoses.
* Specify Voltage
