Dometic VacuFlush 4828, VacuFlush 4806, VacuFlush 4829, VacuFlush 4826, VacuFlush 4609 Instruction Manual
...Page 1
1
4800 and 4600
Series
VacuFlush®
Toilets
Vacuum toilet system
Instruction manual
EN
4800
Series
4600
Series
Page 2
2
Dometic VacuFlush Toilet
2
A
B C
D
E
F
G
3
4
1
2
4
5
6
7
8
9
10
3
1
4
7
2
5
3
6
1
A
B
Page 3
3
Dometic VacuFlush Toilet Notes on using the manual
Table of contents
1 Notes on using the manual .................................................3
2 General safety instructions ..............................................3 - 4
3 Intended use ............................................................4
4 Components ............................................................5
5 Specications ........................................................5 - 6
6 Operation............................................................7 - 8
7 Maintenance/winterizing/service .........................................9 - 15
8 Warranty ..........................................................16 - 17
9 Customer service........................................................17
1 Notes on using the manual
Caution!
Safety Instruction: Failure to observe this instruction can cause material damage and impair
the function of the device.
Note
Supplementary information for operating the device.
g. 1 2, page 2 : This refers to an element in an illustration. In this example, item 2 in gure
1 on page 2.
2 General safety instructions
The manufacturer will not be held liable for claims for damage resulting from the following:
• Faulty installation or connection
• Damage to the unit from mechanical inuences, misuse or abuse
• Alterations to the unit without express written permission from the manufacturer
• Use for purposes other than those described in this manual
2.1 Warnings – marine applications
The following statements must be read and understood before installing, servicing and/or
operating this product on a boat. Modication of this product may result in property damage.
Dometic recommends that a qualied marine technician or electrician install or service this product.
Equipment damage, injury to personnel or death could result from improper installation. DOMETIC
ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR DAMAGE TO EQUIPMENT, OR INJURY OR
DEATH TO PERSONNEL THAT MAY RESULT FROM IMPROPER INSTALLATION, SERVICE OR
OPERATION OF THIS PRODUCT.
Caution! Hazard of Flooding
If toilet is connected to ANY through-the-hull ttings, ALWAYS close seacocks when
toilet is not in use (even if boat is unattended for a brief period). All passengers MUST be
instructed on how to close valves when the toilet is not in use. Failure to do so can result in
ooding which can cause loss of property and life.
EN
Page 4
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Dometic VacuFlush ToiletGeneral safety instructions
Caution! Hazard of Flooding
If the toilet uses fresh water for ushing and is connected directly or indirectly to a shoreside municipal water system at ANY time, shoreside water connections MUST be disconnected if the boat is unattended (even if boat is unattended for a brief period). Failure to do
so can result in ooding which can cause loss of property and life.
Caution! Hazard of Flooding
Before beginning any work on this product, be sure that all electrical power to the unit has
been turned off and that seacocks are in the CLOSED or OFF position. Failure to do so can
result in ooding which can cause loss of property and life.
Caution!
Overlling the holding tank can create serious damage to the sanitation system, such as
rupturing the holding tank and releasing tank contents into the bilge. To prevent this possibility, Dometic recommends using the “full” tank shut-down relay in the toilet’s electronic
control module. The “full” signal from the holding tank can be generated by an optional
Dometic DTM01C tank monitor or DTM04 four-level tank monitor system.
3 Intended use
The Dometic VacuFlush toilet provides an electric-ush toilet that vacuums waste from the bowl and
pumps it to a holding tank or other efuent storage/disposal system. Operated by a wall-mounted
ush switch, the toilet allows the user to add water to the bowl (before using or ushing) and to ush
the toilet by pushing a button. An integrated status panel activates lights to indicate when the toilet
is activated, when the toilet is ready to ush, and when the toilet is not ready to ush due to
recharging vacuum.
3.1 Benefits
Convenient electronic flush. Add water or ush with the touch of a button.
Choice of two water consumption settings. “Normal” ush uses 1 quart (0.95 liter) per ush and
adds water to bowl after ush; “Dry Bowl” setting uses only 1 pint (0.5 liter) per ush and does not
add water to the bowl – ideal for marine applications when boat is underway.
“OK to Flush” and “Do Not Flush” indicator lights. Green light indicates when proper vacuum is
achieved and toilet is ready to ush. Red light indicates when vacuum level is too low for a ush to
occur. Vacuum recharges in about one minute after ushing.
Integrated fuse. Toilet circuitry includes built-in resettable fuse. If toilet fuse ever trips, just turn
off electrical power to toilet for about 60 seconds, then turn electrical power on.
Automatic “full tank” shut-down. When connected to a holding tank level indication system and
the tank reaches full level, the VacuFlush toilet will shut its electrical power off. This safety feature
prevents overlling the holding tank, which may cause damage to the boat.
Three-second “rough seas” shut-down delay. If motion of rough sea causes “full tank” indicator
to activate toilet shut-down, a three-second signal delay occurs to allow tank contents to settle
before completing shut-down process.
Service Mode. Service switch behind toilet seat, when activated, keeps ush ball open for easier
toilet cleaning or other service function.
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5
Dometic VacuFlush Toilet Components
4 Components
4.1 VacuFlush all-ceramic toilet
(g. 1 , page 2) (g. 2 , page 2)
Ref. Description
1 Service mode switch
2 Water supply check valve
3 Electric water valve
4 Water supply line
5 Plug-in discharge tting
6 Circuit board
7 Flush ball motor/drive linkage
Refer to complete parts list (packed separately) for
additional information.
Ref. Description
A VacuFlush switch panel
B VacuFlush status panel
(for toilet with ush handle only)
VacuFlush switch panel can be tted with generic frame
or one of several popular Vimar and Gewiss frames.
4.2 Typical VacuFlush toilet system (marine)
(g. 4 , page 2)
Ref. Description
1 VacuFlush all-ceramic toilet
2 VacuFlush switch/status panel
3 Vacuum generator
4 Holding tank status panel
5 Holding tank (waste)
Ref. Description
6 Vent lter
7 Discharge pump
8 Overboard discharge tting
9 Air vent tting
10 Dockside discharge tting
Some VacuFlush toilet systems combine the vacuum generator (3) and holding tank (5) into one unit (VacuFlush holding tank system).
Contact boat or vehicle manufacturer for complete information on your toilet system.
5 Specifications
5.1 Materials
Toilet body: vitreous ceramic Discharge fitting: polypropylene
Toilet seat: thermoset plastic resin or wood (seats vary according to toilet model)
5.2 Approvals
CE and ROHS compliant components
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Dometic VacuFlush ToiletSpecifications
5.3 Toilet installation specifications
Electrical
Amp draw (average) 2 amps at 12 V DC; 1 amp at 24 V DC
Fuse 2-amp internal fuse (resettable) *
Water
Supply
Fitting 0.5 in. NPT
Flow rate 2.0 gpm/7.6 lpm minimum required at toilet
Discharge
Size 1.5 in./38 mm ID PVC pipe or sanitation hose
Horizontal run 50 ft./15 m maximum to vacuum source
Vertical run 6 ft./1.8 m maximum to vacuum source
Required
components
Electric ush switch Dometic VFS or VFP switch (purchased separately)
Vacuum source
VacuFlush vacuum generator or
VacuFlush holding tank system (purchased separately)
* Circuit board fuse resets by turning toilet’s electrical power off, then back on.
Specications subject to change without notice.
5.4 Dimensions (g.
3
, page 2) All dimensions may vary ± 0.375 in. / 10 mm
Ref. Dimension
A 18.125 in. / 460 mm
B 14.75 in. / 375 mm
C 18.625 in. / 473 mm
D 17 in. / 432 mm - seat height
E 15.75 in. / 400 mm
F 8.625 in. / 219 mm - rough-in (4809)
G 33.5 in. / 851 mm - seat lid up
Ref. Dimension
A 14.75 in. / 375 mm
B 14.75 in. / 375 mm
C 18.25 in. / 464 mm
D 13.625 in. / 346 mm - seat height
E 14.875 in. / 378 mm
F 8.375 in. / 213 mm - rough-in (4806)
G 30.25 in. / 768 mm - seat lid up
Models 4809, 4848, 4828, 4829 Model 4806, 4826
Ref. Dimension
A 18 in. / 457 mm
B 14.75 in. / 375 mm
C 19.75 in. / 502 mm
D 17 in. / 432 mm - seat height
E 16 in. / 406 mm
F 10.5 in. / 267 mm - rough-in (4609)
G 33.5 in. / 851 mm - seat lid up
Ref. Dimension
A 15 in. / 381 mm
B 14.75 in. / 375 mm
C 19.75 in. / 502 mm
D 14 in. / 356 mm - seat height
E 15.375 in. / 391 mm
F 10.375 in. / 264 mm - rough-in (4606)
G 30.5 in. / 775 mm - seat lid up
Models 4609, 4648 Model 4606
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Dometic VacuFlush Toilet Operation
6 Operation
6.1 Toilet system start-up
1. Turn on electrical power and water supply to toilet.
2. Flush water through entire toilet system by ushing toilet ve times (press “Flush” switch and
allow each ush cycle to complete until green light indicates system is ready for next ush).
Each cycle takes about one minute.
6.2 Normal toilet operation
ADD WATER TO TOILET BOWL (and panel backlighting function)
Press “Add Water” switch until desired water level is achieved. More water is usually
added only when ushing solids. (If switch is pressed too long, water ow will shut
off automatically to avoid overow.)
BACKLIGHTING: To turn switch backlighting effect off or on, push “Add Water”
switch twice very quickly.
FLUSH TOILET
Press “Flush” switch down for a moment, then release it. Flush only when the green
“OK to Flush” light is on. Toilet will not ush until the green “OK to Flush” light is on.
It takes about one minute for vacuum to recharge for the next ush.
If the red “Do Not Flush” light is on, the system is either recharging the vacuum, or
the holding tank is full. Do not attempt to ush the toilet during these conditions, or a
clog may occur in the toilet system.
DO NOT FLUSH FOREIGN OBJECTS
CAUTION! Flush only water, bodily wastes and rapid-dissolving tissue paper. Do not
ush wet wipes, sanitary napkins, condoms, diapers, razor blades paper cups,
cotton swabs food, hair or liquids such as oils or solvents. Clogging or damage to
the toilet system may occur.
Note
Make sure all guests understand toilet operation before use.
6.3 Changing flush modes
Dometic VacuFlush all-ceramic toilets offer two ush settings to help manage water consumption:
Normal flush – Uses 1 quart (0.95 liter) per ush. Adds water to bowl after every ush.
Dry Bowl flush – Uses 1 pint (0.5 liter) per ush. Does not add water to bowl after ush.
To change from Normal to Dry Bowl ush setting, press “Flush” switch for about ve seconds. When
green “OK to Flush” light on status panel begins ashing, release “Flush” switch. Flush mode has
been changed to Dry Bowl setting. Change mode to Normal ush by following the same procedure.
(continued on next page)
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Dometic VacuFlush ToiletOperation
6.4 Indicator lights
“OK TO FLUSH” INDICATOR
A steady green “OK to Flush” light indicates when the toilet is ready to ush. A
momentary ashing green light indicates when ush mode is changing.
“DO NOT FLUSH” INDICATOR
A red “Do Not Flush” light indicates two possible toilet system conditions:
1. vacuum level in toilet system is not sufcient for complete ush.
2. holding tank is full and should be pumped out. When the red light is on,
electrical power to the toilet automatically shuts off to prevent possible overlling of
the holding tank.
6.5 Service mode
To clean the toilet bowl or perform other service that requires keeping the ush ball
open without running water, use the Service switch.
1. Push the Service button for three seconds. The steady backlight will change to
a ashing light while the toilet is in Service mode.
2. Perform the service operation. After the Service operation is complete, press
the Service button for three seconds to change back to normal toilet operation.
6.6 Bidet operation
5 6
Applies to VacuFlush toilet/bidet
combination models only.
1. Turn on bidet faucet by turning
handle away from toilet (g. 5 ).
2. Adjust water temperature by turning
handle up for warm water and down
for cool water (g. 6 ).
3. Use electronic “Flush” switch to clear
toilet bowl during and after bidet use.
Caution! Hazard of Flooding
Be sure to shut bidet faucet off completely after use.
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Dometic VacuFlush Toilet Maintenance/Winterizing/Service
7 Maintenance / Winterizing / Service
7.1 Cleaning the toilet
To maintain the toilet’s original, lustrous appearance, use Dometic® Toilet Bowl Cleaner or
other non-abrasive bathroom and toilet bowl cleaners. Please follow label directions.
Caution
To avoid damaging the toilet system’s seals and
valves, do not clean toilet with abrasive cleaners,
caustic chemicals, or lubricants and cleaners that
contain alcohols or petroleum distillates.
7.2 VacuFlush system maintenance
Maintenance procedures vary widely and depend on factors such as frequency of use, quality of
ushing water, etc. The chart provides a general guideline for keeping your toilet system ready for
use at any time.
Maintenance procedure Service interval Notes
ROUTINE
Check all clamped hose joints
below water line for leaks.
Monthly —
Check lter screen in water valve. After rst year of service, then as
needed if water ow is noticeably
slower.
Screen is located inside water
valve inlet.
Replace vent lter (if installed in
holding tank vent line).
Annually —
MAJOR SYSTEM MAINTENANCE
Replace duckbill valves in vacuum
generator or vacuum pump.
Every three years See vacuum generator or
vacuum pump parts list for
replacement kit part number.
Replace ush ball seal and ush
ball (if required).
Every three years See toilet parts list for replace-
ment kit part number.
7.3 Recommended spare parts
When operating boat or other vehicle in remote areas, keep the following spare parts on hand to
assure continuous toilet system operation.
Description Where used
Flush ball seal VacuFlush toilet. See parts list.
Flush ball VacuFlush toilet. See parts list.
Electric water valve VacuFlush toilet. See parts list.
Vacuum switch kit Vacuum tank or vacuum generator. See parts list.
Duckbill valves Vacuum tank or vacuum generator. See parts list.
To order spare parts, refer to Customer Service section.
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Dometic VacuFlush ToiletMaintenance/Winterizing/Service
7.4 During extended periods of non-use
Toilet system 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 liquid biodegradable laundry detergent
(should NOT contain bleach).
2. Open ush ball in Service Mode (see directions in Section 6.5). Hold the Add Water switch down
for about two minutes. Release the Add Water switch and return the Service Mode switch to the
Normal position.
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 procedure 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.
TURN OFF ELECTRICITY AND WATER TO TOILET IF IDLE FOR LONG PERIODS OF TIME
If people will not be using the boat for a long time (vacation, maintenance, off-season, etc.), or in
the event of a long electrical power interruption, electrical power and water supply to the toilet and
vacuum generator should be shut off.
7.5 Clearing blockage in toilet base
1. Turn off water to the toilet.
2. Open the ush ball in Service Mode.
3. Pull the foreign material from the 1-inch diameter orice at the bottom of the base or, using a
small diameter blunt rod, attempt to push the blockage through the orice.
7.6 Locating potential vacuum leaks in base assembly
The VacuFlush toilet is part of a vacuum system that includes a vacuum pump and vacuum tank, or
a vacuum generator and discharge plumbing lines. If a vacuum leak is suspected, special equipment
will isolate the source of the leak. If the toilet is determined to be the source of the leak, there are
three possible areas to investigate:
1. Flush ball and ush ball seal. See Problem 12 in Troubleshooting Guide.
2. O-rings on the rotor shaft.
3. O-rings around bottom of toilet base assembly.
Sources 1 and 2 will require the base assembly to be removed from the toilet and partially
disassembled.
7.7 Winterizing
At the end of each season, the VacuFlush toilet system should be winterized for storage. The
following procedure should be used:
1. Pump out holding tank.
2. Thoroughly ush system with fresh water.
3. Drain freshwater tank.
4. Add freshwater antifreeze to freshwater tank.
5. Flush freshwater water antifreeze and water mixture through toilet and into the waste holding
tank. Each installation is different, so amounts may vary. User discretion is required to assure
adequate protection.
6. Empty holding tank.
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Dometic VacuFlush Toilet Maintenance/Winterizing/Service
Note
Use nontoxic antifreeze designated for potable water systems. (See boat or vehicle
owner’s manual.)
Caution
Never use automotive-type antifreeze in freshwater systems.
7.8 Troubleshooting guide
Problem Possible Cause Service Instruction
1. Water does not enter bowl
and toilet does not ush.
a. Toilet fuse or circuit breaker is
tripped.
b. Loose wire connections.
c. Incorrect wiring of toilet to
incoming power.
d. Defective circuit board.
a. To check toilet fuse, turn off
electrical power to toilet, wait
60 seconds, then turn on power
to toilet. Check circuit breaker at
main distribution panel.
b. Check for loose or defective wire
at circuit board pins 9 and 10.
c. Check for reverse polarity of
incoming power.
d. Replace circuit board.
Toilet base assembly
Sealing
Grommet
Check Valve
Electric Water
Valve
Filter
Screen
Drive Arm
Linkage
Flush
Spring
Circuit Board
Cam Switch
Rotor Shaft Cam
Flush Ball
Retaining Ring
Flush Ball Seal
Bowl Seal
Motor
SERVICE MODE
Toggle Switch
(alternate location
on some models)
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Dometic VacuFlush ToiletMaintenance/Winterizing/Service
Problem Possible Cause Service Instruction
2. Water enters toilet bowl, but
toilet does not ush.
a. “OK to Flush” light is not lit on
status panel.
b. Electrical failure from ush
switch to toilet.
c. Flush switch may be defective.
d. Loose ush ball motor wires.
e. Defective ush ball motor.
f. Flush ball motor drive arm
failure.
g. Drive linkage failure.
a. Check for loose/defective wires
between vacuum switch (on
vacuum generator) and wire 6 of
circuit board.
b. Check for loose/defective wires
between ush switch and wires
2 and 4 of circuit board.
c. Replace if necessary
d. Check wires between motor and
circuit board wires 17 and 18.
e. Replace if necessary.
f. See page 15 for replacement
instructions.
g. See page 15 for replacement
instructions.
3. Water does not enter toilet bowl,
but toilet ushes.
a. Blocked water supply.
b. Loose/defective wires.
c. Defective water valve.
d. Defective circuit board.
a. Clear blockage in water line or
lter screen at water valve inlet.
b. Check wires between water
valve and toilet circuit board
wires 15 and 16.
c. Replace water valve.
d. Replace circuit board.
4. Water does not enter toilet when
pressing “Add Water” switch.
a. Electrical failure.
b. Defective ush switch.
a. Check wires between “Add
Water” switch and circuit board
wires 1 and 4.
b. Replace ush switch.
5. Water does not shut off and
toilet bowl overows.
a. Debris inside water valve or
defective water valve.
a. Replace water valve.
6. Flush ball opens slowly. a. Excessive drag between ush
ball and seal.
b. Defective spring assembly.
c. Electrical short circuit.
d. Cam switch needs adjusted to
align ush ball.
e. Defective cam switch.
f. Defective drive linkage.
a. Clean surface of ush ball and
under edge of seal. Lubricate
with alcohol-free cooking spray.
b. Replace spring.
c. Check wires between “Flush”
switch and circuit board wires 2
and 4.
d. See page 14 for adjustment
instructions.
e. Replace cam switch. See page
14 for instructions.
f. Replace drive linkage. See page
15 for instructions.
7. Flush switch must be held in
“Flush” position to close ush
ball.
a. Service Mode switch is in
“Service” position.
b. Loose/defective wires.
c. Defective cam switch.
a. Return Service Mode switch to
“Normal” position.
b. Check wires between cam
switch and circuit board wires 11
and 12.
c. Replace cam switch. See page
14 for instructions.
8. Flush ball does not close
completely.
a. Cam switch needs adjustment/
ush ball alignment or
replacement.
b. Rotor cam shaft is loose or
defective.
a. See adjustment/alignment or
replacement details on page 14.
b. See replacement instructions on
page 15.
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Dometic VacuFlush Toilet
Maintenance/Winterizing/Service
Problem Possible Cause Service Instruction
9. Flush ball does not open
completely.
a. Rotor cam shaft is loose or
defective.
b. Weak or defective spring
assembly.
c. Excessive drag between ush
ball and seal.
a. See instructions for repair or
replacement on page 15.
b. Replace spring.
c. Clean surface of ush ball and
under edge of seal. Lubricate
with alcohol-free cooking spray.
10. Squeaky noise occurs during
ush cycle.
a. Lubrication needed between
ush ball and seal.
b. Lubrication needed between
drive arm/linkage joint.
a. Lubricate with alcohol-free
cooking spray.
b. Lubricate joint with silicone
grease.
11. Water does not stay in toilet
bowl (leaks between ush ball
and seal).
a. Flush ball seal is worn and
needs replaced.
b. Flush ball is scratched or worn
and needs replaced.
c. Cam switch/ush ball alignment
needs adjustment.
d. Bolts that hold base to toilet
need tightened to 20-25 in.-lbs.
a. See instructions on page 14 for
replacement.
b. See instructions on page 15 for
replacement.
c. See instructions on page 14 for
adjustment.
d. DO NOT OVERTIGHTEN or
damage to toilet may occur.
12. Toilet ushes in both “Add
Water” and “Flush” positions.
a. Defective circuit board. a. Replace circuit board.
13. Water leaks from toilet onto
oor.
a. Loose water line connection.
b. Defective water valve.
c. Toilet bowl seal is defective.
d. Mounting bolts holding base to
toilet need tightened to 20-25
in.-lbs.
a. Tighten water line connections.
b. Replace water valve.
c. Replace bowl seal. See
instructions on page 14.
d. DO NOT OVERTIGHTEN or
damage to toilet may occur.
14. Green “OK to Flush” light does
not illuminate.
a. Loose wire at circuit board.
b. Loose wire at “Flush” switch.
c. Loose or defective wire between
vacuum switch and toilet.
d. Defective green light.
a. Check wires 3 and 6 of circuit
board.
b. Check green wire at “Flush”
switch.
c. Repair or replace wires.
d. Replace status panel.
15. Red “Do Not Flush” light does
not illuminate.
a. Loose wire at circuit board.
b. Loose wire at “Flush” switch.
c. Loose or defective wire between
vacuum switch and toilet.
d. Loose or defective wire between
“Full Tank” relay and toilet circuit
board pin 8.
e. Defective red light.
a. Check wires 5 and 7 of circuit
board.
b. Check red wire at “Flush” switch.
c. Repair or replace wires.
d. Repair or replace wire.
e. Replace status panel.
16. Flush ball opens and closes,
but waste does not leave
bowl (no vacuum).
a. No electrical power to vacuum
pump.
b. “Full Tank” shut-down relay
prevents vacuum pump from
operating.
c. Blockage inside bottom of toilet
base.
a. Check power wires, fuse or
circuit breaker to vacuum pump.
b. Pump out holding tank.
c. See instructions to clear
blockage (page 10).
Page 14
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Dometic VacuFlush ToiletMaintenance/Winterizing/Service
7.9 Servicing toilet base components
ALIGNING CAM SWITCH/FLUSH BALL
The ush ball should be properly positioned so that
the “A” and “B” distances are equal (see illustration at
right). If the ush ball becomes misaligned (resulting in
water leaking from bowl or other ushing problems),
follow instructions below to resolve problem.
REMOVING TOILET FROM FLOOR
1. Turn off water and electrical power to
toilet.
2. Remove water inlet hose from toilet.
3. Remove toilet from oor and turn it upside down.
MAKE SURE POWER WIRES REMAIN SECURE.
TO CORRECT PROBLEMS 6b, 9a and 12c:
4. Loosen cam switch mounting screws with 3/32inch hex tool and 1/4-inch box-end wrench. Slide
cam switch up or down (see illustrations below)
depending on ush ball position.
5. Tighten cam switch mounting screws, apply
electrical power and check adjustment. Repeat as
necessary.
6. After cam switch and ush ball are properly
positioned, connect water line and reinstall toilet.
Over-travel
condition
Slide
cam switch
DOWN
Slide
cam switch
UP
Under-travel
condition
REPLACING THE FLUSH BALL SEAL
1. Turn off water and electrical power to toilet.
2. Remove water inlet hose from toilet.
3. Remove toilet from oor and turn it upside down. Disconnect Service Switch wires at in-line connectors.
4. Remove three nuts and at washers securing base assembly to toilet bowl using a 1/4-inch drive ratchet
wrench, 7/16-inch deep-well socket and extension.
5. Pull check valve out of the sealing grommet located in rear of toilet bowl.
6. Lift base assembly from toilet.
7. Replace old seals with a complete seal kit.
8. Reconnect base assembly to toilet with new mounting bolts (L-shaped) included with seal kit. Tighten nuts to
20-25 in.-lbs. torque.
9. Reconnect Service Switch wires. Reattach water inlet hose to toilet.
10. Reinstall toilet to oor.
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Dometic VacuFlush Toilet Maintenance/Winterizing/Service
REPLACING THE FLUSH BALL
1. Turn off water to toilet.
2. Open ush ball in Service Mode, then turn off
power to toilet.
3. Disconnect water inlet hose.
4. Remove toilet from oor and turn upside down,
and disconnect Service Switch wires at in-line
connectors.
5. Pull check valve out of sealing grommet located in
rear of toilet bowl.
6. Remove three nuts and at washers securing base
assembly to ceramic toilet bowl using a 1/4-inch
drive ratchet wrench, 7/16-inch deep-well socket
and extension.
7. Lift base assembly from toilet.
8. Remove bowl seal, ush ball seal, and retainer
plate to expose ush ball.
9. Loosen set screw in the rotor shaft cam using
a 1/8-inch hex tool.
10. Remove the #8 x 1/4-inch long screw and at
washer from linkage slot.
11. Remove the four screws securing the mounting
bracket to base.
12. Pull mounting bracket and rotor cam off base.
13. Rotate ush ball forward and remove ush ball
retaining screw.
14. Replace ush ball and reverse disassembly
through step 10.
15. Push rotor cam all the way onto rotor shaft.
Tighten set screw.
16. Lubricate moving parts with silicone grease.
17. Before reassembling entire toilet, the cam switch
may require adjustment. See “Aligning The Cam
Switch” on page 14.
REPLACING THE ROTOR SHAFT
1. Follow disassembly steps 1 through 14 under
“Replacing the Flush Ball”.
2. Pull rotor shaft out from inside of the base.
3. Lubricate O-rings on new shaft with silicone
grease.
4. Align at section on rotor shaft with at section in
cam during assembly. Push rotor shaft cam fully
onto rotor shaft. Tighten set screw.
5. Lubricate moving parts with silicone grease.
6. Reverse the disassembly procedure.
7. Before attaching base to toilet, the cam
switch may require adjustment. See
“Aligning The Cam Switch” on page 14.
REPLACING THE ROTOR SHAFT CAM
1. Follow disassembly steps 1 through 14 under
“Replacing the Flush Ball”.
2. Remove linkage pin clip and pin.
3. Attach new rotor shaft cam to linkage using
pin and clip.
4. Lubricate moving parts with silicone grease.
5. Reverse the disassembly procedure.
6. Before attaching base to toilet, the cam
switch may require adjustment. See
“Aligning The Cam Switch” on page 14.
REPLACING THE MOTOR DRIVE ARM
1. Follow disassembly steps 1 through 11 under
“Replacing the Flush Ball”.
2. Remove the four motor mounting screws.
3. Remove the motor from the mounting bracket.
4. Loosen the Drive Arm set screw using a 3/32-inch
hex tool, then remove old Drive Arm.
5. Install new Drive Arm and push onto motor shaft
as far as possible. Tighten the set screw.
6. Lubricate moving parts with silicone grease.
7. Reverse disassembly procedure.
8. Before attaching base to toilet, the cam
switch may require adjustment. See
“Aligning The Cam Switch” on page 14.
REPLACING THE DRIVE LINKAGE
1. Follow disassembly steps 1 through 13 under
“Replacing The Flush Ball”.
2. Remove linkage pin clip and pin at rotor shaft cam.
3. Remove the ush spring retaining screw and
washer from the retaining post.
4. Remove the ush spring from the old linkage.
5. Insert the ush spring into the new linkage
and reattach the spring to the retaining post.
6. Attach linkage to rotor shaft cam using pin
and clip.
7. Lubricate moving parts with silicone grease.
8. Reverse the disassembly procedure.
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Dometic VacuFlush ToiletWarranty
8 Warranty and product liability
North America and Rest of the World:
Manufacturer’s One-Year Limited Warranty
Dometic Corporation, Sanitation Division warrants to the original purchaser only that this product, if
used for personal, family or household purposes, is free from defects in material and workmanship
for a period of one year from the date of purchase.
If this Dometic product is placed in commercial or business use, it will be warranted to the original
purchaser only to be free of defects in material and workmanship for a period of ninety (90) days
from the date of purchase.
Dometic reserves the right to replace or repair any part of this product that proves, upon inspection
by Dometic, to be defective in material or workmanship. All labor and transportation costs or
charges incidental to warranty service are to be borne by the purchaser-user.
EXCLUSIONS
IN NO EVENT SHALL DOMETIC BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, FOR
DAMAGES RESULTING FROM IMPROPER INSTALLATION, OR FOR DAMAGES CAUSED BY NEGLECT,
ABUSE, ALTERATION OR USE OF UNAUTHORIZED COMPONENTS. ALL IMPLIED WARRANTIES,
INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR
PURPOSE, ARE LIMITED TO A PERIOD OF ONE YEAR FROM DATE OF PURCHASE.
IMPLIED WARRANTIES
No person is authorized to change, add to, or create any warranty or obligation other than that
set forth herein. Implied warranties, including those of merchantability and tness for a particular
purpose, are limited to one (1) year from the date of purchase for products used for personal, family
or household purposes, and ninety (90) days from the date of purchase for products placed in commercial or business use.
OTHER RIGHTS
Some states do not allow limitations on the duration of an implied warranty and some states do not
allow exclusions or limitations regarding incidental or consequential damages; so, the above limitations may not apply to you. This warranty gives you specic legal rights, and you may have other
rights which vary from state to state.
To obtain warranty service, rst contact your local dealer from whom you purchased this product or
go to http://www.dometic.com to locate a dealer near you.
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17
Dometic VacuFlush Toilet Warranty/ Customer Service
Europe:
Warranty and Customer Service
Warranty arrangements are in accordance with EC Directive 44/1999/CE and the normal conditions
applicable for the country concerned. For warranty or other service, please contact our Dometic
Customer Service department. Any damage due to improper use is not covered by the warranty.
The warranty does not cover any modications to the product or the use of non-original Dometic
parts; the warranty does not apply if the installation and operating instructions are not adhered to
and no liability shall be entertained.
Product Liability
Product liability of Dometic Group and its subsidiary companies does not include damages which may
arise from: faulty operation; improper alterations or intervention in the equipment; adverse
effects from the environment which may impact the equipment itself or the direct vicinity of the equipment or persons in the area.
To obtain warranty service, rst contact your local dealer from whom you purchased this product or
go to http://www.dometic.com to locate a dealer near you.
9 Customer service
There is a strong, worldwide network to assist in servicing and maintaining your toilet system. For
the Authorized Service Center near you, please call from 8:00 a.m. to 5:00 p.m. (ET)
Monday through Friday.
You may also contact or have your local dealer contact the Parts Distributor nearest you for quick
response to your replacement parts needs. They carry a complete inventory for the Dometic product
line.
Telephone: 1 800-321-9886 U.S.A. and Canada
330-439-5550 International
Fax: 330-496-3097 U.S.A. and Canada
330-439-5567 International
Web site: http://www.Dometic.com
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Dometic VacuFlush Toilet
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19
Dometic VacuFlush Toilet
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20
Dometic VacuFlush Toilet
Dometic Corporation, Sanitation Division
13128 State Rt. 226, P.O. Box 38
Big Prairie, OH 44611 USA
1-800-321-9886 • Fax: 330-496-3097
www.Dometic.com
REVISION A
Form No. 600345371 9/17
©2017 Dometic Corporation
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