mjm yachts 50z Downeast, Owner'S Manual

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7.3
7.4
FRESHWATER SYSTEM
INDEL ISOTEMP 20 GALLON HOT WATER TANK
Water in the 20-gallon hot water tank is located in
the port pilothouse settee locker. Water in the
tank is heated in one of 2 ways (1) whenever the
engine is operating or (2) when the engine is not
running, by turning on the “Water Heater” breaker
on the 240v AC Panel. It is part of the freshwater
system and does not need to be filled separately.
There is virtually no need for maintenance, but the
connections at the tank should be visually inspected
occasionally.
The coolant lines from the engine to the tank have
shut-off valves. These need to be OPEN in
order for the engine to heat the water in the tank.
For service, or in case or a ruptured line, these
valves can be closed to stop this water loop.
GENERAL ECOLOGY SEAGULL WATER PURIFIER
[ See also Seagull owner’s manual ]
The galley is fitted with the best available water
purifier in the world that probably produces better
water than obtained in supermarket bottled
water. It is used on 85 airlines.and by the military
where the water supply is contaminated by
chemical warfare agents. This purifier has a
cartridge (in stainless pressure vessel under
sink) that should be replaced annually or when
either reduced water flow indicates that it has
become plugged with sediment or the taste is
odd.
It is best to clear the pressure water system of any winter anti-freeze before
running water through the cartridge. The filter is rated for 1000 gallons, which is approximately 15
water tanks’ worth. Replace it at least once per year.
CHAPTER 7