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4800 SERIES VACUFLUSH TOILETS
ORDERING PARTS
Dometic is ready to assist you in the event service is required. Before calling, please have the following information
available. Your cooperation in having this information ready is appreciated and allows us to better meet your needs.
Please refer to Customer Service section in this manual.
1. Toilet Model Number (See Toilet Model Identication section, page 3.)
2. Serial Number
3. Part Number, Description and Quantity (see separate parts list sheet.)
INSTALLATION – GENERAL INFORMATION
Special Installation Notes
1. Each 4800 series toilet installation must include a separate vacuum generator or vacuum pump/tank
combination (available separately).
2. See WARNINGS on page 3 for additional toilet system installation and operation information.
Discharge Piping (see System Layout, page 4)
HORIZONTAL AND VERTICAL RUNS – All discharge piping and seacocks (including seacocks) must be 1.5-inch
(38 mm) ID nominal pipe size. Maximum vertical piping from toilet outlet to vacuum source inlet is 6 feet (1.8
meters). Maximum horizontal length of vacuum piping from toilet outlet to vacuum source is 50 feet (15 meters).
Other restrictions on discharge piping apply. Contact your nearest VacuFlush dealer, distributor, or Dometic
Sanitation customer service for more information.
INSTALLATION NOTES
• Use cold water only.
• Water supply line: 1/2-in. (13mm) ID; toilet inlet
tting is 1/2-in. (13mm), 14 TPI.
• Requires 2.0 GPM (7.6 LPM) ow rate at toilet
water valve.
• Include shut-off valve in water line for maintenance
purposes.
Flush Water Options
FRESH WATER SYSTEM – VacuFlush vacuum toilets
can ush with fresh water or sea water. Fresh water
is highly recommended because it reduces odors
often associated with sea water and reduces system
maintenance.
INSTALLATION NOTES
• See Notes from Freshwater System (above).
• Seacock must be full-ow, marine quality valve
(not screw-to-close type).
• Use primary and secondary raw water lters (see
illustration).
• Position vented loop between discharge side of
water pump and toilet. Must be equipped with
integral check valve that permits air into line to
prevent siphoning.
RAW WATER SYSTEM – VacuFlush vacuum toilets can ush with sea water but require a separate pump and
water ltration for this purpose. Please contact your nearest VacuFlush dealer, distributor, or Dometic Sanitation
sales ofce for complete information.
Vented loop must be at
least 8 inches [203mm]
above water line in toilet
during all conditions of
heel, trim or load.
Water Line
Raw Water
Pump
5/8-in. [16mm] Hose
To Suction Side of Raw
Water Pump
Water Filter (Fine)
100 Mesh
1-inch [25mm] Hose
Seacock
Small Engine Intake Strainer (Coarse)
1/2-in. [13mm] Water
Hose
Vacuum
Toilet
Flush
Switch