Related Manuals for Dometic MasterFlush 7220
Summarization of Contents
Notes on Using the Manual
Safety Instruction
Failure to observe this instruction can cause material damage and impair the function of the device.
Supplementary Information
Supplementary information for operating the device.
Illustration Reference
Refers to an element in an illustration, e.g., item A in figure 1 on page 2.
General Safety Instructions
Manufacturer Liability and Use Restrictions
Manufacturer not liable for claims from faulty assembly, misuse, alterations, or non-manual use.
Marine Application Warnings
Statements for boat installation/service. Modification may cause property damage.
Hazard of Flooding: Seacock Management
Always close seacocks when toilet is not in use to prevent flooding. Instruct passengers.
General Safety Instructions
Hazard of Flooding: Shoreside Water Connection
Disconnect shoreside water connections when boat is unattended to prevent flooding.
Hazard of Flooding: Power and Seacock Safety
Turn off power and close seacocks before work to prevent flooding.
Holding Tank Overfilling Prevention
Overfilling tank can cause damage. Use 'full' tank shut-down relay to prevent.
Intended Use and Benefits
Product Function and Operation
Macerates waste, pumps to tank/overboard. Operated by remote switch for flush/water add.
Installation Flexibility Features
Adjustable base, floorplan flexibility, self-priming raw water pump, optional full tank shut-down.
Components Overview
Installed Toilet Identification
Identifies the main macerator toilet unit (Ref A) and flush switches (Ref B1, B2, NS).
Toilet System Part Identification
Lists components like rim flush valve, hoses, pump, electric valve, and fittings.
Specifications
Materials Used
Specifies materials for toilet, base, and flush switch panel.
System Requirements
Details electrical, water supply, and discharge requirements for proper operation.
Toilet Operation
Freshwater Flush Operation (DFS-2F Switch)
Instructions for system start-up, adding water, and flushing with the DFS-2F switch.
Freshwater Flush Operation (DFST Switch)
Instructions for start-up, adding water, flushing, and 'dry bowl' with DFST switch.
Toilet Operation
Important Flushing Precautions
Avoid 'Dry Bowl' misuse for waste; do not flush foreign objects. Ensure guest understanding.
Full Tank Shut-down Relay Function
Explains how the 'full tank' shut-down relay affects toilet operation.
Raw Water Flush Operation
Raw Water Flush Start-up (DFS-1F)
Instructions for opening seacocks and starting up the raw water flush system.
Raw Water Flush Normal Use
How to flush, adjust inlet valve for clearing, and flush to clear system.
Raw Water Hazard of Flooding
Close seacocks when toilet is not in use to prevent flooding. Instruct passengers.
Maintenance and Winterizing Procedures
Toilet Cleaning Guidelines
Use non-abrasive cleaners like Dometic Toilet Bowl Cleaner for cleaning.
Cleaning Chemical Restrictions
Avoid abrasive cleaners, caustic chemicals, alcohol, or petroleum distillates.
Routine Maintenance Schedule
Monthly checks of connections, valves, filters. Yearly check of water valve filter.
Preparation for Extended Non-Use
Procedure for protecting the toilet during periods of inactivity, especially in heat.
Water Evacuation Process Caution
Do not operate raw water pump long without water during evacuation to prevent damage.
Winterizing Procedures
Antifreeze Type Recommendations
Use nontoxic antifreeze designated for potable water systems.
Antifreeze Type Warning
Never use automotive-type antifreeze in freshwater systems.
Winterizing Pressurized Freshwater System
Drain system, add antifreeze, flush through toilet and entire system.
Winterizing Raw Water System
Close seacocks, disconnect hoses, use antifreeze in intake hose and pump.
Troubleshooting Common Issues
Slow or No Water Emptying
Check for pinched/kinked piping, high discharge, or blocked pump/piping.
Loud Noise or Breaker Tripping
Foreign material in pump chamber; close seacocks and clear foreign material.
Flush Cycle Not Activated
Check holding tank full signal, electrical power, or flush switch malfunction.
Insufficient or No Water Entry
Check water supply line, blocked valve screen, intake filters, or water valve.
Warranty and Product Liability
One-Year Limited Warranty
Product warranty for defects in material/workmanship for one year (90 days commercial).
Warranty Exclusions and Limitations
Excludes consequential damages, improper installation, neglect, abuse, or unauthorized components.
Implied Warranties and Rights
Implied warranties limited to one year (90 days commercial); state-specific rights apply.
Obtaining Warranty Service
Contact dealer or Dometic website for service; warranty terms may vary by state.
Customer Service and Support
European Warranty and Service
Warranty in accordance with EC Directive; covers service, use, and modifications.
Product Liability Limitations
Dometic liability excludes damages from faulty operation or improper alterations.
Contact Information for Support
Provides telephone, fax, and website for service and parts inquiries.
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