mjm yachts 3z, Manual

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INDEL ISOTEMP 8-gallon HOT WATER
TANK
6
WATER SYSTEMS
6.1 F
RESH
W
ATER
BREAKER PANEL
settings:
FRESH WATER PUMP
breaker on.
Fresh water is supplied from two interconnected 25-galllon water tanks
under pilothouse settees, which are filled through a fitting on the starboard
side deck.
No freshwater gauge is needed as you can readily see the level in the tanks.
Fresh Water Pump
A JABSCO 42755-0092 12V
FRESH WATER PUMP
provides freshwater
pressure. The pump is in the pilothouse port settee locker. It runs when a
faucet, the head, anchor chain wash, wiper wash, showers, etc., are
used. It has two switches to maintain pressure in a useable range so the
pump doesn’t switch on every time fresh water is used. When pressure
drops below the minimum, the pressure switches turn the pumps on and
build pressure to the maximum. The pumps have outlet check valves
that maintain pressure when pumps are off. The pump is protected from
sediment by an in-line strainer mounted adjacent to the pump. Check
and clean the strainer periodically.
If the pump runs continuously, a faucet might be open. The transom
shower valve is a frequent culprit. If nothing is on, check that the
FRESH
WATER TANK
has water. Then look for leaks in the lines. An air bubble in
the line may defeat a pressure switch and cause the pump to fail to
operate. Opening a faucet and turning the FRESH WATER breaker off for a
moment and on may fix it. If that doesn’t work, attach a hose to the
DOCKSIDE HOSE INLET
and run water through various fresh water outlets.
6.2 H
OT
W
ATER
The 750w 8-gallon
HOT WATER TANK
is under
the port pilothouse settee. It’s part of the
freshwater system and doesn’t need separate
filling.
If you want hot water and haven’t run the
engine, turn on the
WATER HEATER
breaker on
the right side of
120V AC panel
. The
WATER
HEATER
is a high-load appliance and will require
the
GENERATOR
or
SHORE POWER
to be on.
There is no specified periodic maintenance, but
it’s wise to Inspect connections and clamps
periodically.
If you don’t get hot water from the immersion
heater, press the reset button under the white
cover at the right side of tank. See sidebar and
the Indel Isotemp Owner’s Manual in the
binders.