CAUTION – System may contain vacuum after shut-down.
Read and understand the complete contents of this manual before operating or servicing the sanitation
system. Failure to follow any precautions may result in damage to the sanitation system.
TOILET MODEL IDENTIFICATION
The model identication label is located on the inside wall of the toilet under
the tank access cover. It will show the model number and serial number.
DOMETIC CORPORATION
P.O. BOX 38, 13128 STATE RT 226 (800) 321-9886
BIG PRAIRIE, OH 44611 USA
MODEL NO. 000
SERIAL NUMBER
000000
IMPORTANT INFORMATION BEFORE OPERATION
1. Fill freshwater tank and add deodorant to holding tank through toilet bowl.
2. Make sure all guests understand toilet operation and that the ushing instruction label is easy for guests to read.
This label (see below) is located under the seat, and is easily seen when the seat is raised.
3. Remember, the vacuum pump starts automatically. Shut off the toilet system before servicing and do not leave the
boat with toilet system breaker on.
4. Never use drain openers, alcohol, solvents, etc. in the system.
5. If the system does not function properly, refer to the Troubleshooting section of this manual and repair as
necessary. If problem persists, contact your local SeaLand dealer or see the Customer Service section of this
manual.
1. To a dd wa ter to bowl before
using (if necessary), raise ush
handle until desired water
level is reached. (Water
ow will stop automatically
after a period of time).
To ush, press ush handle down. Water
2.
will ow into bowl for two seconds, then
ush ball will open. Toilet will not ush
again until “OK to Flush” light is on.
3. Do not di spose of s anita ry
napkins or other non-dissolving
items in toilet, such as facial
tissue or paper towels.
These items can cause
plugging of the sanitation
system.
2
OPERATING INSTRUCTIONS
1. Adding More Water To Toilet Bowl
Raise ush handle or press “Add Water” switch until desired
water level is attained. To prevent toilet overow, the control
module limits the amount of water that can be added.
2. Flushing The Toilet
FLUSH HANDLE
ADD WATER
TO BOWL
OFF
REMOTE
SWITCH
STATUS
PANEL
When the vacuum status panel’s green “OK to Flush” light is
on, and the red “Do Not Flush” light is off, press the handle
or “Flush” switch down for a moment, then release it. Holding
OFF
the handle down will not prolong the ush cycle nor start a
new ush cycle. The handle must be allowed to return to the
FLUSH
See page 6 for all VacuFlush wall switches.
“off” position and the vacuum must be allowed to recharge
before another ush cycle can be initiated. A full holding tank will also prevent the toilet from ushing.
3. Selecting Automatic Water Rell Levels:
The Water Level switch is located under the access cover. Carefully lift up on the front of the cover to access the
Water Level switch. There are three water rell levels available. The microprocessor-controlled water valve will
rell the toilet bowl according to your water level selection.
To reinstall the access cover, set the cover on top of the
ACCESS COVER
toilet and press down. This will lock the cover in place
and prevent it from coming loose during travel.
LOW Level
CONTROL SWITCHES
Use this setting to conserve water. This position
reduces the chance of water splashing out of the bowl
during rough travel. If more water is needed for ushing,
lift up on the ush handle. Water ow will stop after
nine seconds to prevent overow.
MID Level
Use this position to keep the toilet bowl clean, especially when family and friends may be using the toilet.
If more water is needed for ushing, raising the ush handle will provide up to six seconds of rell time.
HIGH Level
Use this position if the MID level does not provide a clean toilet bowl. This position is not recommended while
underway. If more water is still desirable for ushing, raising the ush handle will provide up to three seconds
of additional water rell time.
4. Mode Switch
The Mode switch is located on the right side of the control module. It switches between three function settings:
NORMAL
Use this setting for ushing the toilet.
SERVICE
Use this position for cleaning the toilet bowl and ush ball seal. The ush ball will open automatically and remain
open in this position. Lifting up the ush handle provides water.
MANUAL OVERRIDE
Use this position to ush the toilet manually in the event of power or battery failure. This switch disconnects the
electronic brake in the ush valve motor, and allows manual ushing via the override access hole in the side
of the vitreous china base.
Note: The control module allows 15 seconds of water for cleaning. If more water is required, return
the switch to the NORMAL position then back to the SERVICE position.
A safety circuit in the control module monitors ush ball operation. If foreign objects or low voltage prevent
the ush ball from closing, this circuit prevents personal injury or damage to the ush valve motor. If this
condition occurs, reset the control module by placing the Mode switch into the SERVICE position temporarily,
then returning it to the NORMAL position.
3
CLEARING DISCHARGE LINES
Sanitation hoses should be cleared if toilet will not be needed for an extended period of time (more than two weeks).
1. Fill toilet bowl with water and add 4 oz. (120 ml) of biodegradable laundry detergent (should
NOT contain bleach).
2. Flush toilet, holding pedal down for about two minutes. Close ush ball.
3. Turn off water supply to toilet.
4. Flush the toilet without water, allowing the vacuum pump to shut off after the ush. Repeat three times. (This proce
-
dure will minimize any remaining water in the sanitation hoses.)
5. Turn off power to the vacuum pump.
6. Completely pump out holding tank.
If system will be subjected to freezing temperatures, please follow above procedure, then winterize system as described
in this manual.
MAINTENANCE SCHEDULE
Maintenance intervals and normal parts replacement vary widely depending on numerous factors such as frequency
of system use, quality of ushing water, etc. The following chart is intended strictly as a general guide in keeping
the sanitation system 100% ready for any conditions of use.
Maintenance Procedure
Recommended
Date of Service
ROUTINE MAINTENANCE
Toilet ush ball seal cleaning
Tighten toilet seat mounting
hardware
Monthly
Monthly (or as needed)
MAJOR SYSTEM MAINTENANCE
Replace duckbill valves in Vacuum
Pump or Vacuum Generator
Replace ush ball seal and ush
ball (if needed)
Every three years
Every three years
SPARE PARTS
The following parts should be kept available at all times:
Description
Flush Ball Seal
Flush Ball
Water Valve
Vacuum Breaker Kit
Vacuum Switch Kit
1.5-inch Duckbill Valve Kit
(2 ea. per kit)
Part Number
see parts list
see parts list
see parts list
see parts list
see parts list
see parts list
Parts Required
SeaLand Bowl and Seal Cleaner
N/A
Duckbill Valve Kit
Flush Ball Seal
Flush Ball
QuantityWhere Used
1
1
1
1
1
1
All-ceramic toilet
Vacuum generating system
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 the Parts Distributor list in the Customer Service section (page 22).
1. Toilet Model Number
2. Serial Number
3. Part Number, Description and Quantity (see parts list insert)
5
SANITATION SYSTEM COMPONENTS
Vacuum Toilet: VacuFlush all-ceramic vacuum toilets with
Flush and Forget® technology operate differently compared
to other toilets. The vacuum system uses a small amount of
water (a little more than a pint or .5 liter) per ush in addition
to a simple vacuum. The toilet is connected to a pressurized
freshwater system. Fresh water is the key to an odor-free
bat hroom co mpar tment . Most VacuFlush toilets are
equipped with an integral vacuum breaker which prevents
the possible contamination of the freshwater supply.
Flush/Add Water Switches (3100, 3400 models only):
Wall-mounted push-button switches provide electronic
operation of ushing and adding water to the toilet bowl.
Models include two-light vacuum status panel indicating the
toilet is “OK to Flush” or “Do Not Flush”. Models vary.
Vacuum Generator: The vacuum generator combines
the vacuum tank and vacuum pump in one unit. It greatly
reduces installation time and eliminates the hose run
between the tank and pump. Their compact size makes them
especially well-suited to smaller installation spaces.
Vacuum Tank: The vacuum tank stores vacuum energy.
System vacuum level is monitored by a vacuum switch
located on the vacuum tank. When this switch senses
a drop in vacuum in the system, it automatically signals
the pump to energize and bring the vacuum to operating
level. This process is normally completed in less than one
minute.
Vacuum Toilets
VimarGewiss
Marine Flush/Add Water Switches
RV Flush/Add Water
Switch
Vacuum
Generators
Vacuum Pump: The vacuum pump is an electric,
straight-through bellows type. It is manufactured of longlasting polypropylene and draws only 4 to 6 amps of current
at 12 VDC. This unique pump design is both an efcient air
and liquid pump that handles solids without a problem. It
has two duckbill valves on each side of the pump chamber
to maintain vacuum and prevent backow of waste.
“Tank Full” Shut-Down Switches (RV option only):
These “Tank Full” micro-oat switches shut down the
vacuum generator when the waste holding tank is full.
We offer three styles to accommodate various installation
requirements.
Sealing grommet style – Item number 900101
MPT style – Item number 900100
Vent style – Item number 900102
(NOTE: Requires relay mounted on vacuum generator.)
Vacuum Tank and
Vacuum Pump
RV “Tank Full” Shut-Down Switches
Sealing
grommet
style
MPT
style
Vent style
6
SANITATION SYSTEM COMPONENTS (cont’d)
Tank Watc h
®
Level Indicator (marine option only):
The TankWatch unit utilizes micro-oat switches which
activate an indicator panel. The micro-oat switches are
installed in the top of the holding tank. The adjustable
probe assemblies are exible polybutylene tubing and are
designed to ex when tank contents move.
VacuStat™ Indi cat or Pa nel: Co nti nuously mo ni-
tors v a cuum s t atus fo r prope r t oilet o p erati o n .
Brus h e d meta l l ic fini s h compl e m ents b a t hroom
decor. Item number 700112 (12VDC).
Vacuum Status Panel (optional): A two-light status panel
indicates the system is “OK to Flush” or “Do Not Flush”.
The green “OK to Flush” light is illuminated when there is
adequate vacuum pressure available and when the holding
tank is less than full. Item number 710012.
VacuFlush Status Panel (optional): Includes two-light
status panel indicating the system is “OK to Flush” or “Do
Not Flush”, and circuit breaker to shut down system at night.
Item number 500012 (12 VDC) or 500024 (24 VDC).
Vacuum Generator Shut-down Relay (standard on RVs;
marine option): This relay can automatically shut down
power to the VacuFlush toilet system to prevent overlling of the holding tank. Item number 310289 (12 VDC) or
310290 (24 VDC).
Vacuum Tester (optional): This tool assists in identifying
the location of vacuum leaks. The vacuum tester consists
of a vacuum gauge and a cone-shaped plug. Inserting the
plug in the inlet of the vacuum tank or vacuum generator
isolates the toilet from the system. In this way, a vacuum
leak can easily be located in either system. Item number
530002.
In-Line Vent Filter (marine option only): The SaniGardTM
vent lter has special odor-removing lter materials to help
keep your vehicle smelling clean and pleasant. Heavierthan-air malodors accumulate in the holding tank. This vent
lter has a special type of activated lter media to remove
these odors before they offend. Each cartridge is good for
an entire season, and is easily replaced for a fresh start.
Replacement cartridges are available.
Holding Tanks (marine option only – not shown):
SeaLand holding tanks are made of super-strong, 3/8”
(10mm) thick polyethylene — 50% thicker than most other
holding tanks. Each features solid, one-piece construction
with no seams for unmatched durability. A deodorant additive is recommended to keep the holding tank odor-free.
See Deodorants and Special Tissue section for further
information (page 8).
TankWatch
Panel and
Probes
VacuStat Indicator Panel
Vacuum
Status Panel
VacuFlush
Status Panel
Vacuum Tester
Vent Filter
7
MARINE SANITATION REGULATIONS
All boats with xed toilets in U.S. waters and in the waters of some other countries are required to be equipped with an operable
marine sanitation device (MSD). The VacuFlush vacuum sanitation system, when installed in a boat, is a holding tank or Type
III system as dened by the U.S. Coast Guard. Type III systems are designed to permit operation of the toilet without the direct
discharge of untreated waste after every ush. This means onboard toilet facilities can be used when the boat is near swimmers,
beaches or shellsh beds.
Type III systems can be discharged at marina dockside pump-out stations or, if in coastal waters, a minimum of three miles
offshore. Overboard discharge capability must remain secured while within the three-mile limit. The overboard discharge
pump is activated Mswicd ocated in0thetoiletcumxamtmenu.
8
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