Dometic MasterFlush MF 8140 User manual

1
8700 Series
MasterFlush™
Toilets
Macerator Toilet
Operation manual
EN
Mazerier-WC
Bedienungsanleitung............. 13
DE
WC dilacérateur
Mode d’emploi ................. 22
FR
Inodoro triturador
Manual de instrucciones . . . . . . . . . . 32
ES
Toilet met versnijdingspomp
Instructihandleiding.............. 42
NL
WC di macerazione
Manuale di istruzioni ............. 51
IT
Silppuripumppu-wc
Ohjekirja...................... 60
FI
Macerator-toalett
Bruksanvisning ................. 69
SV
Findelingstoilet
Instruktionsvejledning ............ 78
DA
Macerator-toalett
Brukerhåndbok................. 87
NO

2
Dometic 8700 Series MasterFlush Toilet
A
A
BC
D
E
F
B
CD
F
E
G I
J
K
H
N
L
M
1
2
3
12
4
5
6
7
8
9
11 10
3

3
1 Notes on using the manual .................................................3
2 General safety instructions ..............................................3 - 4
3 Intended use ............................................................4
4 Components ............................................................5
5 Specications ........................................................5 - 6
6 Operation............................................................7 - 8
7 Maintenance and winterizing............................................9 - 10
8 Troubleshooting .........................................................10
9 Warranty ..........................................................11 - 12
10 Customer service........................................................12
1 Notes on using the manual
Note
Supplementary information for operating the device.
fig. 1A, page 2 : This refers to an element in an illustration. In this example, item A in
gure 1 on page 2.
Caution!
Safety Instruction: Failure to observe this instruction can cause material damage and
impair the function of the device.
EN
Table of contents
2 General safety instructions
The manufacturer will not be held liable for claims for damage resulting from the following:
• Faulty assembly or connection
• Damage to the unit from mechanical inuences, misuse or abuse
• Alterations to the unit without express written permission from the manufacturer
• Use for purposes other than those described in the operating manual
Dometic 8700 Series MasterFlush Toilet Notes on using the manual
2.1 Warning – recreation vehicle applications
The following statement must be read and understood before installing, servicing and/or
operating this product on a recreation vehicle. Modification of this product may result in property
damage.
Dometic recommends that a qualied RV technician or electrician install or service this product with
regard to all applicable codes and regulations. Equipment damage, personal injury or death could
result from improper installation. DOMETIC ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR
DAMAGE TO EQUIPMENT, OR PERSONAL INJURY OR DEATH THAT MAY RESULT FROM IMPROPER
INSTALLATION, SERVICE OR OPERATION OF THIS PRODUCT.
2.2 Warnings – marine applications
The following statements must be read and understood before installing, servicing and/or
operating this product on a boat. Modification of this product may result in property damage.
Dometic recommends that a qualied 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 PERSONAL
INJURY OR DEATH THAT MAY RESULT FROM IMPROPER INSTALLATION, SERVICE OR OPERATION
OF THIS PRODUCT.

4
Caution! Hazard of Flooding
If the toilet uses fresh water for ushing and is connected directly or indirectly to a shore-
side municipal water system at ANY time, shoreside water connections MUST be discon-
nected 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!
Overlling 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 pos-
sibility, 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 8700 series MasterFlush toilet provides an electric-ush toilet that macerates waste
and pumps it to a holding tank or other efuent storage/disposal system. Operated by a wall-
mounted ush switch or electronic ush handle, the toilet allows the user to add water to the bowl
(before using or ushing) and to ush the toilet by pushing a button. The Dometic ush switch panel
includes lights to indicate when electric power to the toilet is activated, and when the holding tank (if
applicable) is full.
3.1 Benefits
Convenient electronic flush. Add water or ush with the touch of a button or electronic ush handle.
Choice of two water consumption settings. “Normal” ush uses 0.85 gal. (3.2 liters) per ush and adds
water to bowl after ush; “Dry Bowl” setting uses only 0.45 gal. (1.7 liters) per ush and does not add
water to the bowl.
Versatile installation. Powerful macerator pump allows toilet to be located up to 98 ft. (30 m) away and
9.8 ft. (3 m) below holding tank or other discharge line destination.
“Power on” and “full tank” indicator lights. Dometic or other ush switch panel indicates when
electrical power to toilet is activated, and when holding tank is full (when connected to holding tank level
indication system).
Automatic “full tank” shut-down. When connected to a holding tank level indication system, the 8700
series toilet control module will shut off electrical power to the toilet when the holding tank is full. This
safety features prevents overlling the holding tank, which may cause damage to the boat.
General safety instructions Dometic 8700 Series MasterFlush Toilet
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.

5
Dometic 8700 Series MasterFlush Toilet Intended use
5 Specifications
5.1 Materials
Toilet: vitreous ceramic
Macerator pump body: glass-lled polypropylene
Control module housing: ABS
Dometic switch panel frame: ABS
Dometic switch panel: polycarbonate resin
Flush handle: plated brass (on applicable toilet
models)
4 Components
(g. 1, page 2)
Ref. Description
A Macerator toilet
B Dometic ush switch/status panel
C Control module
D 4-wire cable to toilet
E Cable from Dometic ush switch
(RJ45 ethernet cable)
F 6-wire cable to ush switch/
status panel
G Incoming electrical power wires
H Power wires to raw water pump (opt.)
I Wire from “full tank” signal
J Floor mounting hardware kit
K Floor mounting template
L Flush handle (alternate model)
M Dometic status panel
(for ush handle model only)
N Cable for ush handle, status panel
(for ush handle model only)
Ref. Description
1 Anti-siphon valve
2 Vacuum breaker
3 Discharge loop outlet
4 Discharge adapter tting
5 Discharge hose tting
6 Macerator pump
7 Water valve
8 Water line - 0.5 in. NPT tting
9 4-pin cable connector
10 Flush handle (alternate model)
11 Flush handle cable connector
Refer to complete parts list (packed separately)
for additional information.
(g. 2, page 2)

6
Specifications Dometic 8700 Series MasterFlush Toilet
5.3 Dimensions (g. 3, page 2)
Models with wall-mounted
flush touchpad Models with flush handle
5.2 Minimum System Requirements
Ref. Dimension
A 19 in. / 483 mm
B 14 in. / 356 mm
C21.5 in. / 546 mm
D 17.5 in. / 445 mm - seat height
E 17 in. / 432 mm
F 33.5 in. / 851 mm - seat lid up
Ref. Dimension
A 19 in. / 483 mm
B 15.75 in. / 400 mm
C21.5 in. / 546 mm
D 17.5 in. / 445 mm - seat height
E 17 in. / 432 mm
F 33.5 in. / 851 mm - seat lid up
Electrical Circuit breaker 20 amps/12 V DC; 15 amps/24 V DC
Wiring* 12 ga. (up to 20 ft./6.1 m from breaker)
Water
Supply
Fitting 0.5 in. NPT
Flow rate 4 gpm/15 lpm
Maximum ow pressure 40 PSI / 276 kPa
Discharge
Inside diameter 1.5 in./38 mm or 1 in./25 mm
Horizontal run** 98 ft./30 m maximum
Vertical run** 9.8 ft./3 m maximum
* For RV installation, see Appendix on page 15.
** Horizontal and vertical run distances are not cumulative. Check for adequate discharge ow if installation nears one of these limits.
Specications are subject to change without notice.

7
Dometic 8700 Series MasterFlush Toilet Operation
6.1 Toilet system start-up
1. Turn on water supply to toilet.
2. Press “Flush” switch (g. 42) once. After nine seconds of water ow, macerator pump will start
and run for about six seconds to clear bowl. It will take about ve seconds to rell bowl.
3. Toss several sheets of toilet paper into bowl and repeat
cycle. The bowl should completely clear.
6.2.1 Normal toilet operation -
Dometic touchpad or other wall switch
ADDING WATER TO TOILET BOWL
Press “Add Water” switch (g. 41) until desired water level
is achieved. (Water ow will shut off automatically if switch
is pressed too long to avoid overow.) More water is usually
added only when ushing solids.
FLUSHING TOILET
Press “Flush” switch (g. 42), then release it. This activates a powerful
macerator pump that siphons water and waste from the bowl, macer-
ates, and propels the efuent through the discharge line to the holding
tank.
6 Operation
Caution – Do Not Flush Foreign Objects!
Flush only water, bodily wastes and rapid-dissolving toilet
tissue. Do not ush wet wipes, sanitary napkins, condoms,
diapers, paper cups, cotton swabs, food, hair or liquids
such as oils or solvents as clogging or damage to the toilet
or toilet system may occur.
Note
Make sure all guests understand toilet operation before use.
6.2.3 Indicator lights
“POWER ON” INDICATOR
On the Dometic ush switch panel, a steady green “Power On” light (g. 43) indicates when
electrical power to the toilet is activated. A momentary ashing green light indicates when ush
mode is changing.
“FULL TANK” INDICATOR
The Dometic ush switch panel includes a red “Full Tank” light (g. 44) to indicate when the holding
tank is full (if connected to a tank monitoring system) and should be pumped out. When the red light is
illuminated, electrical power to the toilet automatically shuts off to prevent overll of the holding tank.
6.2.2 Changing flush modes
Dometic 8700 series MasterFlush toilets offer two ush settings to help manage water consumption:
Normal flush – Uses 0.85 gal. (3.2 liters) per ush. Adds water to bowl after every ush.
Dry Bowl flush – Uses 0.45 gal. (1.7 liters) 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
“Power On” light (g. 43) begins ashing, release “Flush” switch. Flush mode has been changed to
Dry Bowl setting. Change mode to Normal ush by following the same procedure.
4
12
43

8
Maintenance, Winterizing Dometic 8700 Series MasterFlush Toilet
FLUSH
ADD WATER TO BOWL
6.3.1 Normal toilet operation -
Dometic flush handle and status panel
ADDING WATER TO TOILET BOWL
Lift ush handle until desired water level is achieved. (Water ow will shut off
automatically if switch is pressed too long to avoid overow.) More water is
usually added only when ushing solids.
FLUSHING TOILET
Press ush handle down, then release it. This activates a powerful macera-
tor pump that siphons water and waste from the bowl, macerates, and
propels the efuent through the discharge line to the holding tank.
Caution – Do Not Flush Foreign Objects!
Flush only water, bodily wastes and rapid-dissolving toilet
tissue. Do not ush wet wipes, sanitary napkins, condoms,
diapers, paper cups, cotton swabs, food, hair or liquids such
as oils or solvents as clogging or damage to the toilet or toilet
system may occur.
Note
Make sure all guests understand toilet operation before use.
6.3.2 Changing flush modes
Dometic 8700 series MasterFlush toilets offer two ush settings to help manage water consumption:
Normal flush – Uses 0.85 gal. (3.2 liters) per ush. Adds water to bowl
after every ush.
Dry Bowl flush – Uses 0.45 gal. (1.7 liters) per ush. Does not add water
to bowl after ush.
To change from Normal to Dry Bowl ush setting, press ush handle for
about ve seconds. When “Power On” light (g. 51) begins ashing,
release ush handle. Flush mode has been changed to Dry Bowl setting.
Change mode to Normal ush by following the same procedure.
5
12
6.3.3 Indicator lights
“POWER ON” INDICATOR
On the Dometic MasterFlush status panel, a steady green “Power On” light (g. 51) indicates
when electrical power to the toilet is activated. A momentary ashing green light indicates when
ush mode is changing.
“FULL TANK” INDICATOR
The Dometic MasterFlush status panel includes a red “Full Tank” light (g. 52) to indicate when
the holding tank is full (if connected to a tank monitoring system) and should be pumped out. When
the red light is illuminated, electrical power to the toilet automatically shuts off to prevent overll of the
holding tank.

9
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.
7.2 Routine maintenance
MONTHLY
1. Inspect toilet, plumbing, and plumbing connections, wires, and wire connections.
2. Open and close all plumbing valves, including seacocks.
3. Check in-line water lters and vented loops for blockage
YEARLY
Check water valve lter. Also check water valve lter if water ow into toilet becomes insufcient.
7.3 During extended periods of non-use
The macerator toilet and sanitation hoses should be protected if toilet will not be needed for an
extended period of time (more than two weeks, especially in hot weather).
1. Flush toilet in “Normal” mode and add 4 oz. (118 ml) of liquid biodegradable laundry detergent
(should NOT contain bleach or environmentally harmful substances). Note: If using sea water for
ushing, shut off power to sea water pump and add fresh water by pouring directly into the bowl
during the ush cycle.
2. Flush toilet at least ve times.
3. Turn off water supply to toilet.
4. Flush the toilet without water. Repeat three times. (This procedure will minimize any remaining
water in the macerator pump.)
5. Turn off power to the toilet.
If system will be subjected to freezing temperatures, please follow above procedure, and then
winterize system as described below.
7 Maintenance and winterizing
Caution
To avoid damaging internal seals, do not clean toilet with abrasive cleaners, caustic
chemicals, or lubricants and cleaners that contain alcohols or petroleum distillates.
PRESSURIZED FRESH WATER SYSTEM
1. Drain potable water tank and empty holding tank.
2. Add freshwater antifreeze to potable water tank.
3. Flush potable water antifreeze and water mixture through toilet(s) and into entire system,
including the waste holding tank, diverter valve connections, discharge pumps, etc. Turn off
power to toilet.
Each installation is different, so amounts may vary. User discretion is required to assure
adequate protection.
7.4 Winterizing
At the end of each season, the Dometic macerator toilet should be winterized for storage by using
potable water-safe antifreeze (if boat or vehicle will be exposed to freezing temperatures).
Caution
Never use automotive-type antifreeze in freshwater systems.
Note
Use nontoxic antifreeze designated for potable water systems. (See boat or vehicle
owner’s manual.)
Dometic 8700 Series MasterFlush Toilet Maintenance, Winterizing

10
8 Troubleshooting
Problem Possible Cause Service Instruction
1. Flush cycle operates correctly
but water in the bowl empties
slowly or not at all.
a. Discharge piping is pinched or
kinked.
b. Discharge piping is too high.
(Remember, all upward vertical
loops should not exceed a total
of 9.8 feet / 3 m in height.)
c. The macerator pump or
discharge piping is blocked.
a. Check discharge piping.
b. Reroute discharge piping.
c. Close seacocks and clear
blockage.
2. Macerator pump makes
unusually loud noise or
continually trips breaker.
a. Foreign material in pump
chamber.
a. Close seacocks and clear foreign
material.
3. Flush cycle is not activated
after pushing on ush switch or
handle.
a. Holding tank is full and signal
from tank has shut down
electrical power to toilet.
b. Electrical power to toilet is shut
off or disrupted.
c. Flush switch is malfunctioning.
d. Circuit board in control module is
malfunctioning.
a. Empty holding tank.
b. Check wiring and circuit
breakers (or fuses).
c. Replace ush switch.
d. Replace control module.
4. Insufcient or no water enters
the bowl.
a. Water supply line is pinched or
kinked.
b. Screen in water valve is blocked.
c. Intake water lters are blocked
(in raw water system).
d. Water valve is malfunctioning.
a. Check water supply line.
b. Clear blockage at water valve.
c. Clear water lters.
d. Replace water valve.
5. Insufcient water ow during
bidet operation.
a. Clogged inlet screen at hot or
cold connection at toilet/bidet
mixer valve.
b. Clogged aerator in bidet nozzle
inside toilet bowl.
c. Toilet/bidet mixer valve assembly
is not functioning properly.
a. Disconnect water lines from
mixer valve and clean screens.
b. Unthread aerator nozzle and
clean.
c. Replace mixer valve assembly.
Troubleshooting Dometic 8700 Series MasterFlush Toilet
RAW WATER SYSTEM
Parts required: • 1.5 in. (38 mm) ID hose, about 3 ft. (1 m) long
• 0.625 in. (16 mm) ID hose, about 3 ft. (1 m) long
• two containers
1. Close intake and discharge seacocks. See Hazard of Flooding risks in this manual.
2. Turn off power to toilet.
3. Disconnect and drain intake hose, discharge hose, and in-line lters.
4. Connect 0.625 in. (16 mm) ID hose to raw water pump intake and 1.5 in. (38 mm) ID hose to toilet
discharge.
5. Place one container under hose connected to toilet’s discharge.
6. Place hose connected to intake pump into bucket with antifreeze and pour antifreeze in other
container.
7. Turn on power to toilet and ush until antifreeze is removed from toilet.
8. Disconnect power to toilet and reconnect all intake and drain hoses.

11
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 WAR-
RANTIES, 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 limita-
tions may not apply to you. This warranty gives you specic 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.
9 Warranty and product liability
Dometic 8700 Series MasterFlush Toilet Warranty

12
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 modications 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 for a dealer near you.
There is a strong, worldwide network to assist
in servicing and maintaining your sanitation
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: [phone] U.S.A. and Canada
330-439-5550 International
Fax: [phone] U.S.A. and Canada
330-439-5567 International
Web site: http://www.Dometic.com
10 Customer service
Warranty Dometic 8700 Series MasterFlush Toilet
Dometic is a customer-driven, world-leading provider of leisure products for the RV, automotive, truck and
marine markets. We supply the industry and aftermarket with a complete range of air conditioners,
refrigerators, awnings, cookers, sanitation systems, lighting, mobile power equipment, comfort and safety
solutions, windows, doors and other equipment that make life more comfortable away from home.
Dometic supplies a wide range of workshop equipment for service and maintenance of built-in air
conditioners. Dometic also provides specially designed refrigerators for hotel rooms, offices, wine storage
and transport and storage of medical products.
Our products are sold in almost 100 countries and are produced mainly in wholly-owned production facilities
around the world.
Dometic Corporation, Sanitation Division
13128 State Rt. 226, P.O. Box 38
Big Prairie, OH 44611 USA
1-800-321-9886 • Fax: [phone]
www.Dometic.com
REVISION A
Form No. 600346367 8/17
©2017 Dometic Corporation