Dometic MasterFlush 7120 User manual

1
Macerator Toilet
Operation manual
EN
MasterFlush®Series
Toilets with
ORBIT Base
Applies to toilet models
7120, 7160, 7220, 7260
7200 Series
7100 Series

2
A
B1-B2
1
2
1
2
3 4 5 6 7
Dometic MasterFlush Series Toilet / ORBIT Base

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2.1 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 INJURY OR DEATH
TO PERSONNEL THAT MAY RESULT FROM IMPROPER INSTALLATION, SERVICE OR OPERATION
OF THIS PRODUCT.
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 Operation............................................................6 - 8
7 Maintenance and winterizing.............................................8 - 9
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
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.
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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!
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
possibility, Dometic recommends using a “full” tank shut-down relay. 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
DometicMasterFlushseriesmaceratortoiletprovidesanelectric-ushtoiletthatmacerateswaste
andpumpsiteithertoaholdingtankorotherefuentstorage/disposalsystem,oroverboard(follow
localregulationsforwastetankdischarge).Operatedbyaremoteushswitch,thetoiletallowsthe
usertoaddwatertothebowl(beforeorafterushing)andtoushthetoiletbypushingabutton.
3.1 Benefits
Convenient electronic flush. Addwater(freshwaterversiononly)orushwiththetouchofabutton.
Versatile installation. Several features enhance the installation possibilities of 7100 and 7200 series
macerator toilets:
• Adjustable toilet base. Toilet base can be positioned so that macerator pump housing
extends in any direction from the center of the toilet.
• Floorplan flexibility. Macerator pump allows toilet to be located up to 40 ft. (12.2 m) away or
up to 4 ft. (1.2 m) below holding tank or other discharge line destination.
• Self-priming raw water pump (raw water flush version only).Integralpumpforrawush
water is self-priming with a maximum lift of 4 ft. (1.2 m).
Automatic “full tank” shut-down (optional installation - tank level monitor and shut-down relay
required. Available separately). When the shutdown relay is connected to a holding tank level indica-
tion system, electrical power to the toilet shuts off when the holding tank is full. This safety feature
prevents overlling the holding tank, which may cause damage to the boat.
Dometic MasterFlush Series Toilet / ORBIT Base

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4 Components
Installed toilet (g. 1, page 2) Toilet components (g. 2, page 2)
5.2 Minimum System Requirements
5 Specifications
5.1 Materials
Toilet: vitreous ceramic
Toilet base: polypropylene
Dometic flush switch panel: polystyrene (DFS-1F or DFS-2F); or powder-coated aluminum
(DFST)
Electrical
Power draw 20amps/12VDC;10amps/24VDC
Circuit breaker 25amps/12VDC;15amps/24VDC
Wiring 12ga.(upto25ft./7.6mtotalcircuit)
Consult ABYC guidelines for additional information.
Water
Supply
Fitting size
Supply hose ID
0.5in.NPT–freshwaterushtoilet
0.75in.ID–rawwaterushtoilet
Flow rate 2.0gpm/7.6lpmminimum–freshwaterush
Discharge
Inside diameter 1.5in./38mmor1in./25mm
Horizontal run* 40ft./12.2mmaximum
Vertical run* 4ft./1.2mmaximum
*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.
Ref. Description
A Macerator toilet
B1 DFS-2Fushswitch(standard-
freshwaterushtoilet)
B2 DFS-1Fushswitch(standard-
rawwaterushtoilet)
NS DFSTushswitch(optional)
NOT SHOWN - see page 6
Ref. Description
1Rimushcheckvalve(freshwater
toilet) or adapter (raw water model)
2 Water supply hose
3 Macerator pump (under plastic cover)
4 Electric water valve
5 Product ID label location
6 Stainless steel compression band
7 Discharge tting
Refer to complete parts list (packed separately)
for additional information.
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6.2.1 Toilet system start-up
1. Turn on fresh water supply to toilet.
2. Press “Flush” switch (2) and hold for at least 10 seconds.
3. Toss several sheets of toilet paper into bowl and repeat
cycle. The bowl should completely clear.
6.2.2 Normal toilet operation
ADDING WATER TO TOILET BOWL
Press “Add Water” switch (1) and hold until desired water level
is achieved. (Do not press “Add Water” switch too long or
overowmayoccur.)
FLUSHING TOILET
Press “Flush” switch (2) down and hold until waste drains from
toilet bowl (about 10-20 seconds). This switch activates a macerator pump that siphons water and
wastefromthebowl,macerates,andpropelstheefuenttothedischargeline/holdingtank.Touse
lesswaterforliquid-onlyushes,press“Flush”switchforshorterperiodoftime.
“DRY BOWL” OPERATION
During periods of rough travel, water in a toilet bowl can splash out and into the bathroom area. To
avoid this situation, press “Dry Bowl” switch (3) to drain water completely from toilet bowl. Water is not
added to bowl during or after pressing the “Dry Bowl” switch.
6 Toilet Operation
1
2
3
6.1 Freshwater Flush (with DFS-2F switch)
6.1.1 Toilet system start-up
1. Turn on fresh water supply to toilet.
2. Press “Flush” switch (2) and hold for at least 10 seconds.
3. Toss several sheets of toilet paper into bowl and repeat cycle.
The bowl should completely clear.
6.1.2 Normal flushing
ADDING WATER TO TOILET BOWL
Press “Add Water” switch (1) until desired water level is achieved. (Do not press “Add Water” switch
toolongoroverowmayoccur.)Morewaterisusuallyaddedonlywhenushingsolids.
FLUSHING TOILET
Press “Flush” switch (2) down and hold until waste drains from toilet bowl (about 10-20 seconds).
This switch activates a macerator pump that siphons water and waste from the bowl, macerates,
andpropelstheefuenttothedischargeline/holdingtank.
Touselesswaterforliquid-onlyushes,press“Flush”switchforshorterperiodoftime.
2
1
6.2 Freshwater Flush (toilet with DFST switch)
Caution
Do not operate toilet without water supply turned on. Damage to internal components
may occur.
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6.3 Toilet operation when connected to “full tank” shut-down relay
and tank monitor system
When a Dometic macerator toilet system uses a “full tank” shut-down relay, electrical power to the
toilet is shut off when the holding tank level reaches “full”. To restore electrical power to the toilet for
ushing,holdingtankcontentsmustbeemptiedordischargeduntilthe“full”tankindicatoris
not activated.
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.
Caution – Do Not Flush Waste with “Dry Bowl” Switch!
To maintain proper cleanliness and operation of the toilet and macerator pump, water
shouldbeusedwitheveryush.
6.4.1 Toilet system start-up (toilet with DFS-1F switch)
1. Open raw water inlet and toilet discharge outlet
seacocks.
2. Press “Flush” switch (1) and hold for at least 10 seconds.
3. Toss several sheets of toilet paper into bowl and repeat cycle.
The bowl should completely clear.
6.4.2 Normal toilet operation
FLUSHING TOILET
Press “Flush” switch (1) down and hold until waste drains from toilet bowl (about 10-20 seconds).
This switch activates a macerator pump that siphons water and waste from the bowl, macerates,
andpropelstheefuenttothedischargeline.
Touselesswaterforliquid-onlyushes,press“Flush”switchforshorterperiodoftime.
If toilet bowl does not completely flush andllsupwithrawwaterduringush,partiallycloseinlet
valveuntilbowlclearsandcompletelydischargesefuent.Then,withinletanddischargevalves
completelyopen,ushtoiletforafewsecondstocleartoiletanddischargesystem.
6.4 Raw Water Flush
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.
1
Dometic MasterFlush Series Toilet / ORBIT Base

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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 and add 4 oz. (118 ml) of liquid biodegradable laundry detergent (should NOT con-
tainbleachorenvironmentallyharmfulsubstances).Note:Ifusingrawwaterforushing,shut
offpowertorawwaterpumpandaddfreshwater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verybrieytoevacuateallwater.(Thisprocedurewillminimize
any remaining water in the macerator pump.)
Caution
During water evacuation process, do not operate raw water pump very long without water.
Pump impeller may become damaged.
5. Turn off power to the toilet.
6. After extended periods of non-use, toilet and pump may dry. For easier re-start of toilet
system, add one quart of water to bowl and let it stand for a few minutes before use.
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.
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.
Dometic MasterFlush Series Toilet / ORBIT Base

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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.
RAW WATER SYSTEM
Partsrequired: •Hosethattsrawwaterpump,about3ft.(1m)long
  •onecontainer
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 and in-line lters.
4. Connect hose to raw water pump intake.
5. Place hose connected to pump intake into bucket with antifreeze in it.
6. Turnonpowertotoiletandushuntilantifreezeisremovedfromtoilet.
7. Disconnect power to toilet and reconnect all intake and drain hoses.
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).
If system will be subjected to freezing temperatures, please follow procedures in section 7.3,
“During extended periods of non-use”, and then winterize system as described here.
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 MasterFlush Series Toilet / ORBIT Base

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8 Troubleshooting
Problem Possible Cause Service Instruction
1. Flush function works, but water
in 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 and should not exceed a
total of 4 feet (1.2 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.
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.
a. Empty holding tank.
b. Check wiring and circuit
breakers (or fuses).
c.Replaceushswitch.
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.
Dometic MasterFlush Series Toilet / ORBIT Base

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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 or private 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 or
private purposes, and ninety (90) days from the date of purchase for products placed in commer-
cial 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 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foradealernearyou.
9 Warranty and product liability
Dometic MasterFlush Series Toilet / ORBIT Base

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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
Service department listed elsewhere in this manual. 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 Sanitation 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
  http://www.DometicSanitation.com
10 Customer service
DOMETIC CORPORATION
SANITATION DIVISION
13128 SR 226 | PO BOX 38
BIG PRAIRIE, OHIO 44611 USA
www.Dometic.com
© 2014 Dometic Corporation
All rights reserved.
60034700110/13
Dometic MasterFlush Series Toilet / ORBIT Base