Jayco 2015 PRECEPT, User Manual

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JAYCO CLASS A MOTOR HOMES SECTION 8 – PLUMBING SYSTEM
8-3
12-V
OLT
W
ATER
P
UMP
& S
WITCH
When you want to use water in your motor home and it is not hooked up to city
water, you will need sufficient 12-volt DC power to run the water pump
.
Fig 8.1 Water pump
Once activated, the water pump (also known as the demand pump) will self-prime,
and provide water. The water pump continues to run until approximately 45 lbs. of
pressure is achieved then shut off. The water pump will automatically re-start
when pressure drops. Some cycling may occur, depending on the volume of water
being released. The water pump has a built-in check valve to prevent water from
back flowing.
All water pump switches illuminate when the water pump is activated. Please be
aware the water pump must be shut OFF at the same switch used to turn it ON.
The water pump switch should be in the OFF position when the motor home is
unattended for any amount of time. If something would happen to the water
system, this may help limit water damage to a smaller area.
Fig. 8.2 Water pump strainer
Periodically check the in-line water pump strainer for accumulated debris. To
clean, shut off the water pump, unscrew the clear cap, remove the re-useable
metal strainer and clear any debris, then reinstall.
W
ATER
H
EATER
WARNING
Do not alter the operation or change the design/construction of your water
heater. For your safety, only factory authorized parts should be used on your
water heater. Accessories marketed for recreation vehicles, such as an “add-
on” electric heating elements, are not recommended by the manufacturer.
Such items are not approved to be installed and could create an unsafe
condition and will void all warranties