The crown head was basically just laying in the bathroom....The previous owner started a remodel, got bored and sold it.....The head is porcelin, with a macerator built into the base....one large outlet coming out of the base, and a smaller one out of the top side of the bowl,,,,,4 wires coming out of the motor base....my ? is where do the wires go ???? This is in a 73 Gibson......

Thanks, Daron

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New to houseboating.....but not boating........
1973 Gibson 30ft (The Mothership)

1996 Rinker Festiva 212...(Dazed and Confused)

Enjoying the Three Rivers of Pittsburgh PA....

I suggest you start by reading the installation instructions. If you don't have any, you can download and print 'em from the Raritan website: http://www.raritaneng.com/pdf_files/crown_head/L91crownheadv1002.pdf

Read ALL of 'em before starting ANY work. If you have ANY questions, or there's ANY part of 'em you don't understand, get the answers before doing any work. It's not rocket science, but it is important to follow the directions if you want to end up with a trouble-free system.Wiring it correctly is the most important part of the installation...critical, in fact.

You'll prob'ly have to run a new electrical circuit, with it's own breaker, 'cuz electric marine toilets should never be on the same circuit as anything else that can reduce the voltage to it...low voltage will damage the motor. If you've never done any boat wiring before, I suggest you pay the boatyard to install the new circuit for you.

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Peggie Hall, Moderator
Specializing in marine sanitation since 1987, Author: "Get Rid of Boat Odors--A Guide to Marine Sanitation Systems and Other Sources of Aggravation and Odor."
[L=http://shop.sailboatowners.com/books/detail-books.htm?sku=66438&cat=1304[/L]

Daron, I'm speculating here. You mentioned a large hose connection on the side of the toilet base - that is where the discharge hose connects - to go to your holding tank. You also mentioned a fitting at the toilet bowl - that's where the rinse water comes into the toilet bowl. But what you DIDN'T mention is whether or not there is a small pump with two hose barb connections at the other end (rear) of the motor/pump assembly. In a regular Crown Head, there should have been one. If there isn't one there, I suspect that a previous owner may have converted the head to flush with pressurized fresh water from the ship's pressure water system. That would explain the 4 wires connected to the toilet motor - normally, there are only two. Getting back to the wires, I'm guessing that there are two heavy gauge wires and two lighter gauge wires - one of each connected to each motor terminal. The two large ones would be the power supply from the battery. Generally speaking, the battery wire goes to a solenoid relay, which is activated via a pushbutton switch. The solenoid relay switches the heavy battery amperage so that the full power doesn't have to be run through the push button switch. Then from the solenoid relay, the heavy wire goes to the toilet's motor (+). The other heavy wire from the other terminal on the toilet goes to ground (-).

The other two, lighter gauge wires likely go to a solenoid valve (different from the solenoid relay). This is a water valve that is electrically operated - sort of an electric faucet, which supplies rinse water to the toilet bowl from the ship's pressure water system. The solenoid valve is also activated by pressing the push button switch, so that when you press the push button, the solenoid valve opens to allow rinse water to come into the toilet. At the same time, the macerator and discharge pump are running, to grind up the contents of the bowl and pump them off to your holding tank. Let go of the button and everything stops. This is the likely scenario, but don't hold me to it...

For those who don't already know, I'm Vic Willman, with Raritan Engineering's Tech support Group. Come the first of October, I'll have been here for 36 years. Being that Peggie Hall has been calling herself the "Head Mistress" for years, I started using the screen name "Head Master", just to needle her a little. We're good friends, we've known each other for about 10 years now.

Edited: 09/13/2007 at 02:56:37 PM by Head Master

Daron,
Listen to Peggie, trust me.

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Riverliver