SeaLand 8700 Series MasterFlush Toilet Installation - Manual (Page 7)

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Dometic 8700 Series MasterFlush Toilet Installation
5 Installation
5.1 Fresh water system layout - marine application
5.2 Raw water system layout - marine application (additional components required)
Note
Use cold water only. Include shut-off valve in water line for maintenance purposes.
Notes
Use cold water only. Include shut-off valve in water line for maintenance purposes.
Use primary and secondary raw water filters.
Raw water pump MUST NOT be demand-type. Pump is controlled by control module.
Install vented loop as shown. It must be equipped with integral check valve that permits air into line to
prevent siphoning .
Dometic macerator toilets can operate with an
onboard pressurized freshwater system with a
minimum flow rate of 2.5 gpm (9.5 lpm) at the
toilet. Onboard fresh-water demand systems
include a water pump that automatically draws
water from a water storage tank when a valve
Dometic macerator toilets can flush on seawater but require a separate pump for this purpose. The
pump is activated by the signal from the toilet’s electronic control module that would operate the
integral water valve in a fresh water system . If the raw water pump draws more than 18 amps of
current, a 12 or 24 V DC electrical relay must be installed.
anywhere in the piping system is opened .
Dometic toilets are equipped with an electrically
operated water valve and a backflow preventer
to prevent contamination of onboard potable
supplies .
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VENT
FITTING
SEACOCK
VENT
FILTER
DISCHARGE
PUMP
DECK
DISCHARGE
“FULL” LEVEL
PROBE (opt.)
CONTROL
MODULE
CONTROL
MODULE
MACERATOR
TOILET
MACERATOR
TOILET
FLUSH
SWITCH
PANEL
FLUSH
SWITCH
PANEL
0.5 in./13 mm
FRESH WATER
HOSE
0.5 in./13 mm
WATER HOSE
0.625 in./16 mm HOSE
1 in./25 mm HOSE
SEACOCK
TO SUCTION SIDE OF
RAW WATER PUMP
FINE WATER FILTER
(100 MESH)
SMALL ENGINE INTAKE STRAINER (COARSE)
RAW WATER
PUMP
WATER LINE
HOLDING TANK
(cut-away view)
VENTED LOOP/CHECK VALVE
Must be 8 in./203 mm above water
line during all conditions of heel,
trim or load