VacuFlush Installer’s Guide

VacuFlush Installer’s GuideThis book belongs to0

VacuFlush System ComponentsSeaLand recommends that theOEM label key sanitation systemcomponents: such as vacuumgenerators, wye valves anddirections, seacocks, etc.VacuFlush toilet systems are not difficult toinstall BUT certain steps are CRITICAL andmust be followed as described. These areasare highlighted throughout this guide in RED.1

VacuFlush Principles of Operation Uses pressure difference betweenatmosphere and vacuum in the tank. The vacuum pump is activated by theloss of vacuum in the vacuum tank. Vacuum is maintained at all times.The “leak-down” time period should beapproximately three hours. (Thepump should not come on within athree hour window of non-use.) Recharging vacuum takes less than aminute.2

Table of ContentsNote: Magnum Opus and VHT Installations are shown in other Installation GuidesVacuFlush System Components 1VacuFlush Principles of Operation 2Table of Contents . 3Section I: Toilet Installation . 4 Critical Mounting Clearances . Standard Discharge Configurations . Toilet Base & Through-floor FunnelInstallation Guidelines Solvent Bonding . Incoming Water Supply Keep Debris Out of the Toilet . CRITICAL GUIDELINES .56Vacuum Pump Locations .Supporting the Vacuum Hose .S-Series Pump .Sailboat Pump Mounting .Vacuum Tank Do’s and Don’ts Accessibility CRITICAL GUIDELINES .Arrow indicatesextremelycritical items Piping Runs to the Vacuum Source .Bend Limits .Hose Run Simplification .Avoiding Heat Sources .Routing Hose and Piping .Making Hose Connections .9–Hose Heaters & Assembly –Lubrication .11–Assembly Tips 12 AvoidingMalodors .13 SeaLandFitting Information .14 CRITICAL GUIDELINES .Section II: Vacuum Sources . 15 Section III:Hose and Piping Layout . 2616171819202125272930313234343536373942Section IV: Holding Tanks . 43 Simplified layout .Holding Tank Locations .Diptubes .Vent Filters .Discharge Pump .Level Indicators .CRITICAL GUIDELINES .44464849505152Section V: Electrical Guidelines 53Section VI: System Checkout . 54 Power On Check . 55Winterizing the System . 56System Leak Rates . 57Section VII:System Troubleshooting 58Water will not stay in the bowl Plastic flush ball will not close Plastic flush ball will not open Water doesn’t shut off in toilet .Water does not enter toilet properly .Cannot lift flush lever to add waterto the bowl .7. Water is leaking from the watervalve assembly .8. Water is leaking from the rear oftoilet 9. Water is leaking from the base/bowlConnection 10. Pump is running too often .11. Pump runs continuously .12. Pump will not run .13. Vacuum pump runs too slowly, veryhot, or blows fuses frequently .14. Toilet will not flush .15. Pump leaks water 1.2.3.4.5.6.585959606162626363646566676869 CRITICAL GUIDELINES . 533

Section I: Toilet InstallationsSeaLand toilets are available in many different outlet configurations.Please review a SeaLand brochure for current model information.HINT: If the ModelNumber has a zero inthe middle, the toiletdischarges through thefloor.For modelswith 147 or 148the connectionmust be a hoseconnection, nota glued joint.Section I4

Critical Toilet Mounting ClearancesREARSIDELocation of the floor holefor the toilet discharge5

Above the Floor Discharge - Side and RearThese joints requireSOLVENT BONDING perprocedure on page 11!Section I90 Elbow DetailCannot be used with modelsending in 147 or 148.6

Through Floor Funnel ComparisonStandard through the floor funnelQuick turn funnel2 3/4” (70mm)4” (102mm)8 1/2” (216mm)minimum bendradiusStandard below the floor discharge with hose7

Below the Floor Discharge-08 Model DetailThis joint requiresSOLVENT BONDING perprocedure on page 11!Section I8

Toilet Base & Through-floor Funnel Installation GuidelinesThrough-floor funnels must be mounted securely with 8screws (not provided). Mounted flush with floor Screw heads must be flush orlower than the top of the floorflange funnel.Through-floor funnelsare pre-assembledand can be positionedat 90 points from frontof toilet.Toilet base must besecurely fastened with 4fasteners (provided).Bottom of the toilet base andthe bottom of the throughfloor funnel must bemounted on the samesurface.No gaps allowedbetween funnel andfloor.Follow SOLVENTBONDING per procedureper page 11 forUse FULL scale template for cutting holesconnecting fitting to(available in the SuperTech Manual).bottom of the funnel!9

When there is NO room . Use this Quick Turn FunnelSpecial Quick Turn Funnel - must bespecial ordered - P/N 385310550(Can only be installed with models thatuse a separate floor flange funnel, likethe models ending in -06.)Limited spaceunder thedeck, despitethe size of theboat.Section IThis joint requires PROPERHOSE CONNECTION perprocedure on pages 34-36!10

Solvent Bonding For Rigid Pipe & Fittings1Cleaner2Cement3TwistThe most important steps:1.2.3.4.Use a PVC cleaner on both bonding surfaces.Use a PVC cement (must containTetraheyrofuran) on both bonding surfaces.Connect parts using a twist and hold motion untilthe glue is set.Let joint cure for at least four hours or perinstructions on the container. (Cold temperaturesrequire longer cure times.)11

Incoming Water SupplyThe incoming water line MUST Be cold water ONLY Be ½” (13mm) MINIMUM ID Provide a MINIMUM flow of 2gallons/min (7.6 liters/min) at thetoilet. This requires a 2.8 GPM(10.6 l/m) demand pump, orgreater depending on linerestrictions. Include a SHUT-OFF valve formaintenance purposesFresh water is highly recommended. If the choice is made to use salt orbrackish flush water, SeaLand requires the use of a primary and secondaryfilter. The secondary filter must be 100 mesh or less.Section I12

Keep Debris Out of the Toilet To prevent leaks, THE BALLSEAL MUST BE PROTECTEDFROM DEBRIS. Keep the toiletbowl covered. Lag bolts and/or T-bolts MUSTbe securely fastened in FOURlocations, or toilet wobble willresult. Should debris collect under theball seal, use the brush andcleaner samples to remove(provided with toilet).Leave thisprotective coverin place untilfinal delivery.Ball seal debris is THE MOSTCOMMON installationproblem!!13

Critical Guidelines – Toilet Installations1.Allow proper clearances from rear and side objects (bulkheads,partitions, etc).2.When installing a funnel, secure the funnel flat against the floorusing 8 fasteners.3.Fasten toilet securely to floor using 4 fasteners.4.When installing a funnel, the bottom of the toilet base and thebottom of the funnel flange must be mounted on the same surface.5.Follow proper solvent bonding procedure for rigid PVC on page 11when required.6.Assure minimum incoming water supply of 2 gallons per minute(7.6 liters/min) at the toilet.7.Keep debris out of the toilet bowl/funnel DURING INSTALLATION toavoid vacuum or water leakage through the ball seal.Section I14

Section II: Vacuum SourcesLow-Profile VacuumGeneratorVacuum Tank andPumpVacuum Generator15

Locating the Vacuum SourceEach toilet musthave a separatevacuum source(vacuumgenerator ortank/pump).A. Maximum height of vacuum piping from toilet outlet to vacuum source inlet is6 feet (1.8 meters).B. Maximum length of vacuum piping from toilet outlet to vacuum source inlet is30 feet (9.1 meters).Section II16

Supporting the Vacuum HoseThe inlet hose of the vacuumgenerator must not have a sideload (see picture below).Support the hose, as necessary.Do not let the hose gounsupported (up or down). Itwill pull the fitting out of theseal, creating a leak.X17

S-Series Vacuum PumpOptional straight or 90º swivel quickdisconnect fittings are available for suction &discharge sides of vacuum pump.To pump307341513 –hose connector Mount pump horizontally Mount pump at same level orlower than vacuum tank outlet.Do not mount the pump higherthan the vacuum tank outlet.307341425 –threaded fitting385310728 –swivel fittingassemblyTo pump307341161 –elbowSection II18

Sailboat Pump MountingMounted athwartship (atright angle to keel), need15 incline to beacceptable.Mounted parallelwith keel, no inclineis needed.When mounting S-Pump or Vacuum Generator athwartships (at right angle to keel) onsailing vessels, compensate with a 15º incline on the discharge side.19

Vacuum Tanks Do’s & Don’ts The outlet of thevacuum tank must beat the lowest level. The vacuum switchmust be on the topwhen mountedvertically. Proper clearancemust be allowed foraccess to thevacuum switch.Section IINever tamperwith thevacuumswitch!Vacuum levelscan ONLY beadjusted atfactory!20

Accessibility is Critical!Do NOT do this!! Insufficientaccess. EASY access is needed to service Pumps Vacuum Switches Tank inlet and outlet fittings Vent Filters All pumps and tanks must have access toreplace if necessary.XVacuum Generator is located behind anappliance, difficult to access and entire unit cannot be replaced.21

Vacuum Tank Critical Access AreasSection II22

VG Critical Access Areas23

Avoid locating pumps under sleeping areasXSection IIAvoid placing vacuum pumpsunder sleeping areas24

Critical Guidelines – Vacuum Sources1. Do not exceed the maximum length between toilet outlet and vacuumsource 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 eachtoilet.3. Support the hose coming from the vacuum generator.4. Mount pumps horizontally.5. Vacuum tanks–Locate the outlet of the vacuum tank at the lowest level.–When mounted vertically, the vacuum switch must be at the top.–Never tamper with the vacuum switch settings.6. All fittings and connections, pumps, vacuum switches, tank inlet and outletfittings and vent filters must be readily accessible.7. Avoid locating vacuum pumps under berths.25

III. Hose and Piping LayoutProblems to be AvoidedCrushed, pinched, kinkedhoses found on newboats.This could be avoided byusing a quick turn funnel.Hose is routed improperly.Section IIIHose forced beyond bend radius, routed too tightly.26

Piping Runs to the Vacuum Source27

Limit of TEN 45 and 90 bendsSection III28

Use Generous Bend RadiiPiping Material1.5” (38mm) SeaLand OdorSafe1.5” (38mm) Pipe FittingsMinimum Inside Bend Radius8.5” (220 mm)2.5” (64mm)Bend RadiusUse pipefittingelbow inthissituation29

Hose Run SimplificationBEFORE One-head system with 40 gallon holdingtank Excessive hose runs Difficult to reach wye valve Discharge hose from holding tank alwaysfilled with sewageAFTER Now a two-head system with 40-gallonholding tank on same footprint. Createdby matching a SeaLand holding tank withrigid pipe fittings.Section III30

Avoid Heat SourcesDo not locate in or around hot waterheater relief valves (they may leak).31

Avoid Binding Corners & Sharp BendsEXCELLENTDo 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 III32

Do Not Risk Affecting Structural Integrity33

Making Hose ConnectionsHow To Use The SeaLand Hose Heater1. Insert hose into pre-heated hose heater for1.5 - 2.0 minutes. Do not leave the hose inthe hose heater for longer than 10 minutes,hose degradation will occur.2. Remove hose from heater. Using liquiddishwashing soap, quickly lubricate fittingand inside hose end, then push hose ontofitting. For second end, twist hosecounterclockwise before placing onto fitting.This will ease installation due to natural twist(helix) of the hose.Never use an open flameor overheat hose end!XSection III3. Allow hose to cool to room temperature,then clamp hose to fitting with twoclamps. Make sure clamp mechanismsare 180º from each other when tightened.34

Making Hose Connections (cont’d)WHEN DOING THIS USE ONLY THIS AND REMEMBER THIS LITHIUM-BASEDGREASE has led tosmall cracks inadapters due tochemical reaction withcertain PVCformulations.SILICONE-BASEDLUBRICANThas resulted inhoses slipping off ofadapters.RTV (ROOMTEMPERATUREVULCANIZING)SEALANT inhibitsability to servicesystem easily at alater time if needed.PVC CEMENTprevents ability toservice system easilyat a later time ifneeded.35