Jayco 2016 Jay Series Owner's Manual page 84

SECTION 8 - PLUMBING SYSTEM
Water heater switches:
The water heater is gas only with a pilot ignition (Fig 8.5). The water heater
controls are located in an outside compartment and is ignited manually outside of
the trailer. Refer to the water heater manufacturer's manual for lighting
instructions. Hot water is available in approximately 30 minutes.
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. Refer to
the water heater manufacturer's owners manual for details on eliminating the odor
from sulfur water. Odor from sulfur water is not a service problem.
Do not replace anode rod or any other component (such as an "add-on"
electric heating element) with an accessory part that is not authorized by the
water heater manufacturer. Such items are not approved to be installed and
could create an unsafe condition and will void all warranties
NOTE:
There is no replaceable anode rod in the gas pilot ignition water
heaters used on camping trailers.
High altitude deration:
Operation of the water heater at high altitudes may require derating. If the water
heater is not properly derated, lack of sufficient oxygen for combustion may
produce improper burner operation. Pilot outage caused by burner lift-off or
sooting from a yellow burner may occur, indicating the possibility of carbon
monoxide. You may also notice a lack of efficiency in heating the water because of
incomplete combustion of the burner at these higher altitudes.
Consult with the local propane company, your dealer or the water heater
manufacturer for proper derating of the water heater. Change out of the orifice
(derating) should be done by the dealer or a qualified service agency.
NOTE: It is important that once the RV has returned to lower elevation (below
4500 feet) any high altitude deration or other adjustments be reversed for proper
operation of the water heater.
Pressure & temperature (P&T) 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 (Fig 8.5) 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 frequency of the water weeping
or dripping from the P&T relief valve is to maintain an air pocket at the top of the
water heater. This air pocket will form in the tank by design; however, it will be
reduced over time by the everyday use of your water heater (refer to the
manufacturer's manual); If the weeping persists, consult your dealer or a service
agency authorized by the water heater manufacturer.
8-6
WARNING
JAYCO CAMPING TRAILERS