Jayco Select Jay Series, Owner'S Manual

Page: 42 / 101

Water pump switch (optional)
When the water pump switch is ON the water
pump runs until 45 pounds of pressure has
been achieved. The red light will stay ON. Turn
the water pump switch OFF when it is not in
use.
The water pump switch should be in the
OFF position when the RV is left
unattended for any amount of time. If
something would happen to the water
system, this may help limit water damage
to a smaller area.
Dry camping
When you want to use water in your RV and
the RV is not hooked up to city water, you will
need sufficient 12-volt DC power to run the
water pump. Depending on your trailer model,
the pump will be located under the bed, in a
cupboard, under the unit or under the sink. The
switch to operate the water pump is located on
the monitor panel or an interior wall.
For more information
Read the OEM operator’s manual.
W
ATER
H
EATER
(I
F
S
O
E
QUIPPED
)
The water heater is designed to heat water
quickly and efficiently. The water heater
manufacturer has preset the sensing limit to
maintain the water temperature when the
water heater is activated. Hydrogen gas in the
water lines may result if you have not used the
water heater for two weeks or more. To reduce
the risk of injury under these conditions, open
the hot water faucet for several minutes at the
kitchen sink before you use any electrical
appliance connected to the hot water system.
If hydrogen is present, you probably will hear
an unusual sound such as air escaping
through the pipe as the water begins to flow.
Hydrogen gas may be present even after
water has been drained from the tank. Open
faucet at the sink and allow system to vent for
five to ten minutes (or as needed).
Odor from the hot water system
Many water supplies contain sufficient
amounts of sulfur to produce an odor, often
called “sulfur water.” Sulfur water can be
caused by a chemical action or by bacteria.
Generally, sulfur water is not harmful, only
unpleasant to smell. To eliminate sulfur water
sanitize the water heater. Odor from sulfur
water is not a service problem.
High altitude deration
Operation of the water heater at high altitudes
may require derating. Consult with your local
propane gas company, RV dealer or the water
heater manufacturer for proper derating of the
water heater. Change out of the orifice
(derating) should be done by your RV dealer or
a service agency authorized by the water
heater manufacturer. It is important that once
the RV has returned to lower elevation any
high altitude deration or other adjustments be
reversed for proper operation of the water
heater.
Pressure & temperature relief valve
When cold water is heated in the water heater
tank, the water pressure will rise. For this
reason, a pressure and temperature (P&T)
relief valve is required for safety in all water
heaters. It is normal for the P&T relief valve to
release a small quantity of water during the
heating cycle and does not indicate a defective
P&T relief valve. One way to reduce the
37
SECTION 5
PLUMBING SYSTEM
WARNING
Do not replace any component part with an
accessory part that is not authorized by the
water heater manufacturer, such as an
“add-on” electric heating element. Such
items are not approved to be installed and
could create an unsafe condition and will
void all warranties.
WARNING
HYDROGEN GAS IS EXTREMELY
FLAMMABLE.
Do not smoke or have any
open flame near the open faucet. On DSI
water heater models make sure the interior
control switch is OFF during the above
listed procedure.