SeaLand VHT 4500 Holding Tank - 140 Series VacuFlush Toilet - Manual (Page 5)

5
insTallaTion
component location checklist
Vacuum toilet Bathroom
compartment
1. Check dimensions of mounting space.
2. Determine best toilet discharge connection: right, left or rear
discharge (above floor only).
3. Allow at least 1½-inch (38 mm) clearance between toilet rear
and wall.
4. Make sure compartment, shower and vanity doors will clear
toilet bowl.
5. Check location nearest cold water line.
6. Water line must be at least ½-inch ID and provide a minimum
flow of 2 gallons per minute (7.6 liters per minute).
7. Check clearances to side wall for installation of flush lever
cover and back wall for best clearance.
Vacuum holding
tank (VHT)
Any space that
permits access
to remove entire
unit
1. The vacuum holding tank inlet must be located no more than
20 feet (6.1 m) from the toilet discharge.
2. The VHT inlet must not be located more than 3 feet (0.9 m)
above the outlet of the toilet. (NOTE: The lower the tank, the
better the system efficiency.)
3. The VHT must be mounted in a horizontal position.
4. The VHT must not be exposed to temperatures over 120°F
(49°C). Do not place near heat sources such as engine
manifolds, water heaters, generators, etc. Mounting space
must provide for free air flow.
Vacuum hose
and fittings
Follow routing
instructions
1. OdorSafe Plus Sanitation Hose should be used; it is sized to
use SeaLand fittings in the system, minimizing vacuum
leakage.
2. It is important that restrictions in the vacuum hose be kept to
a minimum. Where a bend must occur in a hose run, the ra-
dius of the bend must not be less than 8.5 inches (216 mm).
If a tighter radius is required, use a SeaLand 90° bend kit to
assure a clog-free transition.
locaTinG ThE coMPonEnTs
insTallinG VacuuM ToilET
1. Toilet must be installed on a horizontal surface, and
located so that the toilet seat can be lifted and the
foot pedal operated without interference from other
fixtures.
2. Place toilet in desired location at least 1.5 inches
(38 mm) from back wall.
3. Use screws included to fasten toilet to floor. Cover
screw heads with caps provided.
4. Attach 1/2” ID water supply pipe or hose from water
system to 1/2” NPT connection on back of water valve.
5. Connect sanitation hose to toilet discharge fitting by following same instructions for attaching
hose to vacuum holding tank (see page 7).