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SeaLand Dometic VacuFlush Series Installer's Manual

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Summary of Contents for SeaLand Dometic VacuFlush Series

  • Page 1 Installer’s Guide ® VacuFlush This book belongs to ________________...

  • Page 2: Vacuflush® System Components

    ® VacuFlush System Components SeaLand recommends that the OEM label key sanitation system components: such as vacuum generators, wye valves and directions, seacocks, etc. VacuFlush® toilet systems are not difficult to install BUT certain steps are CRITICAL must be followed as described. These areas...

  • Page 3: Vacuflush Principles Of Operation

    VacuFlush Principles of Operation ® • Uses pressure difference between atmosphere and vacuum in the tank. • The vacuum pump is activated by the loss of vacuum in the vacuum tank. • Vacuum is maintained at all times. The “leak-down” time period should be approximately three hours.

  • Page 4: Table Of Contents

    6. Cannot lift flush lever to add water • Avoiding Malodors …………………….. • Keep Debris Out of the Toilet ……….. to the bowl ……………………………. • SeaLand Fitting Information ………….. • CRITICAL GUIDELINES ……………. 7. Water is leaking from the water • CRITICAL GUIDELINES ……………..

  • Page 5: Section I: Toilet Installation

    Section I: Toilet Installations SeaLand toilets are available in many different outlet configurations. Please review a SeaLand brochure for current model information. HINT: If the Model Number has a zero in the middle, the toilet discharges through the floor. For models...

  • Page 6: Critical Mounting Clearances

    Critical Toilet Mounting Clearances REAR SIDE Location of the floor hole for the toilet discharge...

  • Page 7: Standard Discharge Configurations

    Above the Floor Discharge - Side and Rear These joints require 90 Elbow Detail SOLVENT BONDING per Cannot be used with models procedure on page 11! ending in 147 or 148. Section I...
  • Page 8 Through Floor Funnel Comparison Standard through the floor funnel Quick turn funnel 2 3/4” (70mm) 4” (102mm) 8 1/2” (216mm) minimum bend radius Standard below the floor discharge with hose...
  • Page 9 Below the Floor Discharge -08 Model Detail This joint requires SOLVENT BONDING per procedure on page 11! Section I...

  • Page 10: Toilet Base & Through-Floor Funnel Installation Guidelines

    Toilet Base & Through-floor Funnel Installation Guidelines Toilet base must be Through-floor funnels must… securely fastened with 4 • be mounted securely with 8 fasteners (provided). screws (not provided). • Mounted flush with floor Bottom of the toilet base and the bottom of the through- •...
  • Page 11 When there is NO room…. Use this Quick Turn Funnel Special Quick Turn Funnel - must be special ordered - P/N 385310550 (Can only be installed with models that use a separate floor flange funnel, like the models ending in -06.) This joint requires PROPER HOSE CONNECTION per procedure on pages 34-36!

  • Page 12: Solvent Bonding

    Solvent Bonding For Rigid Pipe & Fittings Cement Twist Cleaner The most important steps: Use a PVC cleaner on both bonding surfaces. Use a PVC cement (must contain Tetraheyrofuran) on both bonding surfaces. Connect parts using a twist and hold motion until the glue is set.

  • Page 13: Incoming Water Supply

    Fresh water is highly recommended. If the choice is made to use salt or brackish flush water, SeaLand requires the use of a primary and secondary filter. The secondary filter must be 100 mesh or less. Section I...

  • Page 14: Keep Debris Out Of The Toilet

    Keep Debris Out of the Toilet • To prevent leaks, THE BALL Leave this SEAL MUST BE PROTECTED protective cover FROM DEBRIS. Keep the toilet in place until bowl covered. final delivery. • Lag bolts and/or T-bolts MUST be securely fastened in FOUR locations, or toilet wobble will result.

  • Page 15: Critical Guidelines

    Critical Guidelines – Toilet Installations Allow proper clearances from rear and side objects (bulkheads, partitions, etc). When installing a funnel, secure the funnel flat against the floor using 8 fasteners. Fasten toilet securely to floor using 4 fasteners. When installing a funnel, the bottom of the toilet base and the bottom of the funnel flange must be mounted on the same surface.

  • Page 16: Section Ii: Vacuum Sources

    Section II: Vacuum Sources Low-Profile Vacuum Generator Vacuum Tank and Pump Vacuum Generator...

  • Page 17: Vacuum Pump Locations

    Locating the Vacuum Source Each toilet must have a separate vacuum source (vacuum generator or tank/pump). A. Maximum height of vacuum piping from toilet outlet to vacuum source inlet is 6 feet (1.8 meters). B. Maximum length of vacuum piping from toilet outlet to vacuum source inlet is 30 feet (9.1 meters).

  • Page 18: Supporting The Vacuum Hose

    Supporting the Vacuum Hose The inlet hose of the vacuum generator must not have a side load (see picture below). Support the hose, as necessary. Do not let the hose go unsupported (up or down). It will pull the fitting out of the seal, creating a leak.

  • Page 19: S-Series Pump

    S-Series Vacuum Pump Optional straight or 90º swivel quick- disconnect fittings are available for suction & discharge sides of vacuum pump. To pump 307341513 – hose connector 307341425 – 385310728 – • Mount pump horizontally threaded fitting swivel fitting • Mount pump at same level or assembly lower than vacuum tank outlet.

  • Page 20: Sailboat Pump Mounting

    Sailboat Pump Mounting Mounted athwartship (at right angle to keel), need 15 incline to be acceptable. Mounted parallel with keel, no incline is needed. When mounting S-Pump or Vacuum Generator athwartships (at right angle to keel) on sailing vessels, compensate with a 15º incline on the discharge side.

  • Page 21: Vacuum Tank Do's And Don'ts

    Vacuum Tanks Do’s & Don’ts • The outlet of the vacuum tank must be at the lowest level. • The vacuum switch must be on the top when mounted vertically. Never tamper with the vacuum switch! Vacuum levels • Proper clearance can ONLY be must be allowed for adjusted at...

  • Page 22: Accessibility

    Accessibility is Critical! Do NOT do this!! Insufficient access. • EASY access is needed to service • Pumps • Vacuum Switches • Tank inlet and outlet fittings • Vent Filters • All pumps and tanks must have access to replace if necessary. Vacuum Generator is located behind an appliance, difficult to access and entire unit can not be replaced.
  • Page 23 Vacuum Tank Critical Access Areas Section II...
  • Page 24 VG Critical Access Areas...
  • Page 25 Avoid locating pumps under sleeping areas Avoid placing vacuum pumps under sleeping areas Section II...

  • Page 26: Critical Guidelines

    Critical Guidelines – Vacuum Sources 1. Do not exceed the maximum length between toilet outlet and vacuum source of 30 feet (9.1 meters) or the maximum height of 6 feet (1.8 meters). 2. There must be a separate vacuum source (vacuum generator) for each toilet.

  • Page 27: Hose And Piping Layout

    III. Hose and Piping Layout Problems to be Avoided Crushed, pinched, kinked hoses found on new boats. This could be avoided by using a quick turn funnel. Hose is routed improperly. Hose forced beyond bend radius, routed too tightly. Section III...

  • Page 28: Piping Runs To The Vacuum Source

    Piping Runs to the Vacuum Source...
  • Page 29 Limit of TEN 45 and 90 bends Section III...

  • Page 30: Bend Limits

    Use Generous Bend Radii Piping Material Minimum Inside Bend Radius 1.5” (38mm) SeaLand OdorSafe 8.5” (220 mm) 1.5” (38mm) Pipe Fittings 2.5” (64mm) Bend Radius Use pipe fitting elbow in this situation...

  • Page 31: Hose Run Simplification

    • Difficult to reach wye valve • Discharge hose from holding tank always filled with sewage AFTER • Now a two-head system with 40-gallon holding tank on same footprint. Created by matching a SeaLand holding tank with rigid pipe fittings. Section III...

  • Page 32: Avoiding Heat Sources

    Avoid Heat Sources Do not locate in or around hot water heater relief valves (they may leak).

  • Page 33: Routing Hose And Piping

    Avoid Binding Corners & Sharp Bends EXCELLENT Do not restrict the ability to pull the hose or pipe. Do not use wire ties to secure the hose or pipe. Support flexible hose every 1 foot (0.3 m) and rigid pipe every 5 feet (1.5 m). Section III...
  • Page 34 Do Not Risk Affecting Structural Integrity...

  • Page 35: Making Hose Connections

    Making Hose Connections How To Use The SeaLand Hose Heater 1. Insert hose into pre-heated hose heater for 1.5 - 2.0 minutes. Do not leave the hose in the hose heater for longer than 10 minutes, hose degradation will occur.

  • Page 36: Lubrication

    Making Hose Connections (cont’d) WHEN DOING THIS… USE ONLY THIS… AND REMEMBER THIS… LITHIUM-BASED SILICONE-BASED RTV (ROOM- PVC CEMENT GREASE has led to LUBRICANT TEMPERATURE prevents ability to small cracks in has resulted in VULCANIZING) service system easily adapters due to hoses slipping off of SEALANT inhibits at a later time if...

  • Page 37: Assembly Tips

    All hose connections should be double Clamps clamped with screw mechanisms 180º apart and reversed. apart • Use ONLY liquid soap and SeaLand hose heaters as aids for installing sanitation hoses. • Do not use • Connect hose only to barbless fittings...

  • Page 38: Avoiding Malodors

    Avoid Common Hose/Piping Problems in Conventional Layouts Acceptable material for rigid piping is PVC. Wye valves create odor permeation problems by trapping waste in unused hose runs. To avoid odor permeation problems, eliminate unnecessary runs that can trap liquids. Use RIGID pipe for any locations of standing sewage.
  • Page 39 Hose….Avoiding Malodors Use rigid piping for standing sewage! After: replaced with rigid standpipe Before: failed hose Section III...

  • Page 40: Sealand Fitting Information

    SeaLand Fitting Information PVC Rigid Pipe 1½-inch (38mm) PVC pipe cut in 5-foot (1.5m) length for easy handling. For use with all fittings shown on next two pages. Product No. Description Length 307001540 1½-inch (38mm) 5-foot (1.5m)
  • Page 41 SeaLand RIGID Pipe Fittings Product No. Description 307341085 Pipe Coupling Connects 1½-inch (38mm) PVC pipe sections. 307341143 90º Bend 90º Ell for connecting 1½-inch (38mm) PVC pipe sections. 307341425 Threaded Male Adapter Adapts 1½-inch (38mm) PVC pipe to 1½-inch (38mm) NPT thread.
  • Page 42 SeaLand FLEXIBLE Hose Fittings Product No. Description 307230310 Hose Mender Kit: Connects 1½-inch (38mm) for maintenance purposes. 307230311 90º Bend Kit: Provides smooth sweep bend. Eliminates hose kinking in sharp bends. 307230312 Hose Adapter Kit Connects 1½-inch (38mm) hose to 1½-inch (38mm) NPT thread.

  • Page 43: Critical Guidelines

    3. Do not run hose or piping close to heat sources. 4. Avoid sharp edges where hose or pipe pass through bulkheads or panels. 5. Pre-heat hose using SeaLand Hose Heaters. 6. Follow the hose connection procedure on pages 34-36. 7. Double clamp all hose connections, rotating clamps 180 .

  • Page 44: Section Iv: Holding Tanks

    Section IV: Holding Tanks SeaLand holding tanks available in MANY configurations Rotationally molded, polyethylene holding tanks, which have thick walls and are resistant to corrosion, are recommended.
  • Page 45 Conventional Layout Wye valves create odor permeation problems by trapping waste in unused hose runs. To avoid odor permeation problems, eliminate unnecessary runs that can trap liquids. Use RIGID PVC pipe for any locations of standing sewage. Section IV...

  • Page 46: Simplified Layout

    SeaLand Simplified Holding Tank Layout Using vacuum to lift Use rigid sewage, not pump. pipe here. Simplified hose layout • Vacuum flushing action keeps sewage from accumulating between toilet and vacuum generator. • Sewage collects in the holding tank only.

  • Page 47: Holding Tank Locations

    Holding Tank Locations 1. The BEST location for a holding tank is at an elevation lower than the vacuum pump.  Allow room above the tank for attaching inlet and outlet fittings, vent fittings and level indicator cap. 2. Do not pump UP, if ...
  • Page 48 Enter the holding This stand pipe must tank from the top be rigid PVC Include a maintenance valve. SeaLand does not recommend locating the holding tank above the vacuum generator, but in layouts with no alternatives, follow the above guidelines.

  • Page 49: Diptubes

    Use Diptubes Conventional Discharge • Diptubes can be added to existing SeaLand or any holding tank. • The engineered angle on diptubes will reduce the possibility of plugging. • Angled suction fitting also lowers Recommended Discharge the tank contents to provide maximum liquid pumpout.

  • Page 50: Vent Filters

    Use Vent Filters 1. Always use reinforced vent hose to prevent kinking. 2. Do not allow a low spot in Vent filter is located hose, this will allow below top of holding condensation to build up tank. and block the hose – trapping odors.

  • Page 51: Discharge Pump

    Discharge Pumps The maximum vertical distance recommended on the discharge side is feet 13. To calculate the pump discharge head, take the following two measurements and add them together: X. The vertical height from the discharge outlet of the pump to the highest point in the discharge line Y.

  • Page 52: Level Indicators

    Level Indicators for Holding Tanks It is important for the probe lengths and float switches to be positioned properly at installation. See TankWatch® Owner’s Manual, for specific instructions. RECESSED SHOULDER RECESSED SHOULDER DOWN...

  • Page 53: Critical Guidelines

    Critical Guidelines – Holding Tanks 1. Do not pump to the holding tank if possible, use vacuum to lift sewage. 2. Rigid pipe must be used for runs where standing sewage may collect. 3. Hose runs into and out of the holding tank should be made through the top of the tank.

  • Page 54: Section V: Electrical Guidelines

    Section V: Critical Guidelines – Electrical System 1. Each pump (or vacuum generator) must have its own circuit breaker or fuse. 12v pump draws 6 amps, recommend 10 amp fuse and 12-14 gage wire (2.1-3.3mm) 24v pump draws 3 amps, recommend 5 amp fuse and 14-16 gage wire (1.3-2.1mm) 2.

  • Page 55: Section Vi: System Checkout

    Section VI: System Checkout Before energizing the system, check the following:  Key system components (vacuum generators, wye valves, seacocks, etc.) are labeled appropriately (port, starboard, forward, aft, guest, etc.).  Toilet(s) mounted securely.  Vacuum tank(s) mounted securely.  Pump(s) mounted securely. ...

  • Page 56: Power On Check

    Power On Check  Pressurize water system.  Energize vacuum system.  Hold flush valve open on each toilet for 30 seconds to charge vacuum pump with water. Assure that sufficient water has circulated through the system to wet pump valves before proceeding with the following test procedure.

  • Page 57: Winterizing The System

    Winterizing the System 1. Thoroughly flush the system with fresh water. Flushing 2. Empty the holding tank. with 3. Shut off the water supply to the toilet and remove the inlet waterline. antifreeze 4. Push the flush lever until all water is drained from the toilet and water valve. 5.

  • Page 58: System Leak Rates

    Determine the System Leak Rate Digital gauge measures vacuum in 1/100 Hg in. Use SeaLand’s Digital Vacuum Reads 8-hour leak rate in 15 Gauge (P/N 318530003) to minutes! confirm the system leak rate and find the leak. 1. Be sure that water has circulated through the system and the duckbill valves are wet.

  • Page 59: System Troubleshooting

    Section VII: System Troubleshooting 1. Water will not stay in the bowl. Is the plastic flush ball closed completely? See Problem number 2. The bowl-to-base clamp ring may be An improper seal develops around flush ball loose. from dirt or debris collecting on underside of Check the bowl-to-base clamp ring by the ball seal.

  • Page 60: Plastic Flush Ball Will Not Close

    2. Plastic flush ball will not close completely. The flush ball may be catching on the edge of ball seal. Frictional drag may exist between flush ball and ball Be sure that the ball seals are centered over the flush ball and seal.

  • Page 61: Water Doesn't Shut Off In Toilet

    4. Water does not shut off in toilet (toilet overflows). The water valve screws or cartridge screw Does the foot pedal return to normal may be over tightened. position when activated? Loosen the screws slightly. Has the water shut off? Is the flush lever a plastic shroud over a metal lever? There may be insufficient clearance between There is insufficient clearance between the cam...

  • Page 62: Water Does Not Enter Toilet Properly

    5. Water does not enter toilet bowl properly. The water line must be ½” (12.7mm) the entire The water flow rate at the toilet may be distance from the demand water pump. insufficient. Check the water lines and replace where needed. Check the flow rate at the waterline from the back Is the flow rate acceptable? of the toilet, it needs to be 2 gpm (7.6 lpm).

  • Page 63: Cannot Lift Flush Lever To Add Water To The Bowl

    6. Cannot lift flush lever to add water to the bowl. There is excessive clearance between the cam strap and water valve assembly. Is the flush lever a plastic shroud over a metal lever? Adjust the cam strap clearance so it is .02”-.06” (0.5 - 1.5mm). The flush lever should now add water.

  • Page 64: Water Is Leaking From The Rear Of

    8. Water is leaking from the rear of the toilet bowl. The vacuum breaker assembly may not fully insert into The vacuum breaker may be leaking. the uniseal. Remove the white cap from the vacuum breaker and flush the toilet. If water leaks while flushing, this is the problem. Secure the vacuum breaker connection.

  • Page 65: Pump Is Running Too Often

    10. Pump is running too often between flushes (more than once every 3 hours). Determine the system leak rate before starting per Digital Gauge Instructions. The flush ball may be leaking. See problems 1 & 2. Leave a small amount of water in the toilet. Was this the problem? Is water being sucked from the bowl? Check for a leak at the vacuum generator.
  • Page 66 11. Pump will not shut off. Determine the system leak rate before starting per Digital Gauge Instructions. Is the vacuum level greater than 10” of mercury? Check the vacuum switch. Compress the vacuum switch spring several times. Problem could be at the pump. Does the pump shut off? Turn power off to the pump.

  • Page 67: Pump Runs Continuously

    12. Pump will not run. The pump may not have power. Check circuit breaker on the main breaker. Is it tripped? Reset the circuit breaker. Operate the pump by flushing the toilet. Does the breaker trip again? Be sure that the leads are Repair the open circuit between connected to the “B”...

  • Page 68: Vacuum Pump Runs Too Slowly, Very Hot, Or Blows Fuses Frequently

    13. Vacuum pump runs too slowly, very hot, or blows fuses frequently. The pump motor may be worn or defective. The voltage to the pump may be incorrect. Isolate the motor from the pump and check it with a known Check the input power for proper voltage.

  • Page 69: Toilet Will Not Flush

    2. Flushing foreign objects down the toilet. NOT flush any non-dissolving items (I.e. sanitary napkins, facial tissue, paper towels, etc.) or excessive toilet tissue down toilet. Rapid-dissolving SeaLand® brand toilet tissue is best. Section VII...

  • Page 70: Pump Leaks Water

    15. Pump leaks water internally or externally (may emit an odor). Is the leak external? Tighten connections or replace hose and make Check for old style bellows clamp without ribs. new connections. Replace with new style that has ribs. Is water still leaking? Is water still leaking? Tighten intake or discharge fittings.
  • Page 71 Notes:...

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