8812 8818, 8848 8819 8800 series MASTERFlush™ MACERATOR Toilets INSTRUCTION MANUAL ! WARNING IMPORTANT NOTICE Dometic® sanitation systems must be installed according to Dometic’s recommended procedures. This manual must be read and understood before adjustment, maintenance, or service is performed. Modification of this product can result in property damage.
Table of Contents Proper Cleaning and Maintenance............. 14 Extended Periods of Non-use.................... 15 Winterizing.................................................. 15 Troubleshooting.......................................... 16 Deodorants and Special Tissue . ............... 17 Replacement Parts ...............................18-19 Customer Service and Warranty................ 20 MasterFlush Technology Features............... 2 Installation Specifications ............................
Toilet Specifications Model Description Weight 8812 All-ceramic, low-profile macerator toilet with full-size seat and bowl. 38.6 lbs. (17.5 Kg) 8818 All-ceramic, standard height macerator toilet with full-size seat and bowl. Sloped back. 46.3 lbs. (21 Kg) 8819 All-ceramic, standard height macerator toilet with full-size seat and bowl. 56 lbs. (25.4 Kg) 8848 All-ceramic, standard height macerator toilet with full-size seat and bowl. Sloped back. Above-floor discharge. 46.3 lbs.
Toilet Model Identification The model identification label is located on the right side of the toilet. frequently for integrity. Failure to comply can result in flooding which can cause loss of property and life.
Toilet Start-up 3. Toss several sheets of toilet paper into bowl and repeat the cycle. The bowl should completely clear. 1. Turn on water supply line to toilet. 2. NORMAL Flush – Press NORMAL button once. After about 9 seconds of water flow, macerator pump will start and run for about 6 seconds to clear bowl. It then takes 4 seconds to refill the bowl. 4. LOW Flush – Press LOW button. After 3 seconds of water flow, the macerator will complete the discharge within 6 seconds.
INSTALLATION – System Diagrams Flush Water Options an electrically operated water valve that opens during Normal and Low flushing modes. SeaLand toilets are equipped with an in-line check valve or air gap to prevent contamination of onboard potable supplies. See later sections for specific information on connecting the water line to the toilet. FRESH WATER SYSTEM – All SeaLand macerator toilets can operate with an onboard pressurized freshwater system with a minimum flow rate of 2.5 gpm (9.
INSTALLATION – SYstem Diagrams (cont’d) Discharge piping SeaLand macerator toilets can be connected to 1-1/2-inch (38mm) ID flexible sanitation hose or adapted to 1-inch (25mm) ID hose with a 1-1/2” x 1” adapter available from a SeaLand product dealer. Connections can be made either through the floor or out the rear of the toilet above the floor. permeates through the wall of the hose.
INSTALLATION – System Diagrams (cont’d) Holding Tanks Seacocks SeaLand macerator toilets operate with most holding tank or treatment systems. If installed with a holding tank, however, the capacity of the tank should be sufficient to avoid the inconvenience of discharging it too frequently. The average flush volume is .96 gallons (3.6 liters) including flushwater and waste. A 30-gallon tank (114-liter) will become full in about 30 flushes. Seacocks are required by various marine regulations.
INSTALLATION – Toilet Components Major toilet system components The connections from the electronic control module to the toilet and to the flush touchpad include cables with pre-wired connectors. Main power leads are brought to the electronic control module. Connections to remote level monitors and raw water pumps are also made here. In addition, the Flush Control Touchpad must be mounted in a user-friendly location.
INSTALLATION – Toilet Components (cont’d) Wiring schematic (from medium-delay circuit breaker) system components (included with toilet) A B C F D E A. Macerator Toilet B. Flush Control Touchpad Kit C. Electronic Control Module D. Straight Discharge Adapter E. Toilet Floor Bracket Kit F.
INSTALLATION – Toilet Components (cont’d) TOOLS REQUIRED • Phillips head screwdriver • 3/8” (10 mm) socket wrench • Hole saws – 1” (25 mm), 1.25” (32 mm), 2” (51 mm), 2.25” (57 mm) diameters • Drill bit – 3/16” (4.8 mm) Through-the-Floor Connections 1 Place template in desired location. 2 Center-punch holes and mounting bracket corners. 3 6 4 With long hex-head screws from toilet floor bracket kit, fasten floor brackets with 3/8” (10 mm) socket wrench using corner marks as guides.
INSTALLATION – Toilet Components 9 12 14 Connect ribbon cables from touchpad panel and control module. 10 (cont’d) Place toilet into position, making sure to see the floor brackets through holes at bottom of toilet. Clamp discharge hose from toilet to discharge fitting. Insert plastic adapters from Toilet Floor Bracket Kit into holes at bottom of toilet. Fasten toilet to floor brackets with screws. 15 13 Route power control cable from control module to toilet.
INSTALLATION – Toilet Components (cont’d) Through-the-Wall Connections To route wiring and plumbing connections through the wall, use floor template to locate vertical centerline of each hole, then put toilet in proper position and mark horizontal centerlines. Drill hole sizes as indicated on template. Route wiring and plumbing through holes, and then install toilet. 8819 water line Connection OPtions Gray water line has both a 90-degree and straight connector at its ends.
Proper Bowl Cleaning For stubborn bowl stains, use SeaLand® Toilet Bowl Cleaner (Fig. A). It’s manufactured especially for use with SeaLand macerator toilets. In certain locations where water is hard, a build-up of lime may dull the toilet bowl finish. Restore the shine with this SeaLand cleaner. If you cannot find it in your area, contact Dometic for your nearest dealer.
Extended periods of non-use – Laying up toilet The macerator pump and sanitation hoses should be treated if toilet will not be needed for an extended period of time (more than two weeks and especially in hotter 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).
Troubleshooting Problem Possible Cause Service Instructions 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 9.8 feet (3 m) in height.) c. The macerator pump or discharge piping is blocked. a. Check discharge piping. 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.
Deodorants and Special Tissue Your SeaLand MasterFlush toilet requires the regular addition of a deodorant product to reduce malodors and to help break down holding tank contents. Several factors should be considered in selecting a deodorant product. Liquid or Granulated. Liquid products work more quickly by readily going into solution. Granulated powder formulations have the advantage of requiring less storage space and are less likely to leak if the package is inadvertently damaged.
Replacement parts Description Item Number Seat assembly - white 385880001 Seat assembly - bone 385880002 Macerator Motor Ass’y- 12 VDC 385880009 Macerator Motor Ass’y - 24 VDC 385880010 Discharge loop kit – models 8812, 8819 385880062 Discharge loop kit – model 8818 385880064 Discharge loop kit – model 8848 385880063 Bowl-to-macerator adapter – models 8818, 8819, 8848 385880014 Bowl-to-macerator adapter – model 8812 385880015 Water line adapter kit 385880016 Water valve assembly, 12 VD
Replacement parts (cont’d) Description Item Number Elbow fitting/hose adapter kit (not glued) 385320008 Electronic control module – 12/ 24 VDC 385880050 Tank “Full” float assembly, grommet-style 313900101 Tank “Full” float assembly, MPT 313900100 TankWatch “Full” level monitor kit for 12 or 24 VDC systems 313000312 Raw water adaption kit, 12 VDC 385880059 Raw water adaption kit, 24 VDC 385880060 Straight discharge adapter 385880039 19
Customer Service 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. Telephone: Fax: Web site: 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 SeaLand product line. 1 800-321-9886 U.S.A.
8800 series MASTERFlush™ MACERATOR Toilets RV INSTALLATION APPENDIX When installing a SeaLand macerator toilet in a recreation vehicle, please use the following Wiring information. Refer to SeaLand 8800 series owner’s manual (600345326), page 10, for complete SeaLand macerator toilet wiring diagram. wiring / electronic control Module connections WARNING! HAZARD OF SHOCK OR FIRE – Always use recommended fuse, circuit breaker and wire size.
