Installation Instruction Manual

7
SeaLand 9300-9400 Series RushFlush Toilets Installation
5 Installation
5.1 General guidelines
For optimum toilet system preformance, follow these guidelines. Make sure to also follow any
governing codes or standards that apply to your installation.
Fresh Water Supply System Plumbing (g.
2
, page 2) DO NOT USE RAW WATER SUPPLY
1. All water supply system plumbing should be 1 in. ID, with working pressure ratings above the
maximum water pump pressure. (100 PSI minimum recommended).
2. Water inlet strainer: 1 in. ID, 40 mesh
3. Pressure gauge: 0-100 PSI
4. Water pump: Grundfos
®
MQ3-35 or equivalent is recommended.
• 1 in. NPT connections
• Internal pressure switch: 50 PSI cut-out, 30 PSI cut-in
• Pump current draw is 8 amps @ 110V, 4 amps @ 220V, other pump manufacturers may vary.
• 15 GPM needed; pump actually rated at 22 GPM max. ow with no restrictions
• Depending on pump installation parameters, a pump of adequate suction lift capability
should be considered. The MQ3 pump has 25 feet of suction lift capability, but it varies
depending on horizontal suction run.
5. Potable water pressure (accumulator) tank: AMTROL
®
Well-X-Trol
®
WX-105-PS or equivalent
is recommended.
• 3/4 in. NPT, or larger, connection
• 5 gallon total volume, 1.8 gallon drawdown @ 30/50 PSI
• Air pressure charge should be set to 2-4 PSI below pump cut-in pressure.
• One 5-gal. accumulator tank recommended for up to 6 heads.
6. Pressure relief valve:
• Installation recommended by accumulator tank manufacturer
• Should be installed near accumulator tank and pump, and set to open at excessive water
system pressures. This protects fresh water system in case of pressure switch malfunction.
7. Check valve: will isolate the toilet system from the rest of the onboard freshwater system;
spring check, 1 in.
8. Rim wash valve inside toilet:
• 1/2 in. NPT connection
• This water supply line can intersect from main 1 in. distribution line prior to high-ow water
jet valve using 1/2 in. plumbing to toilet.
9. Electric high-flow water jet valve and maintenance ball valve, supplied with every toilet:
• 1 in. NPT connections
• Water jet valve should be closest to toilet. Maintenance ball
valve should be farthest from toilet – refer to direction arrow on
top of water jet valve inlet port.
• An in-line strainer is installed into the water jet valve inlet at the
factory. The cone shape protrudes out and against the direc-
tion of water ow away from the center of the valve, pointing
towards the maintenance ball valve.
• The water jet valve features a small white manual override lever
located next to the solenoid. This must be vertical for correct electrical operation. However,
it can be turned to the horizontal position to manually test the water system. Be sure to
return it back to vertical when testing is nished.
Electric water
jet valve