Jayco 2016 JAY FLIGHT, Owner'S Manual

Page: 83 / 136

JAYCO CAMPING TRAILERS SECTION 8 - PLUMBING SYSTEM
8-5
Make sure the water heater is filled with water before use; even momentary
operation of the water heater without water in it may result in damage to the tank
heating element and/or controls. Double check the bypass valves, make sure
they are set properly.
Always open both the hot and cold water faucets, along with outside shower
faucets (if so equipped) when filling fresh water tank to allow air pockets to be
forced out of the water heater.
Draining and winterization:
If the RV is to be stored over the winter months, the water heater must be drained
to prevent damage from freezing. It is recommended the water heater be
drained
and bypassed during the winterization process, particularly if introducing RV
antifreeze into the plumbing system .
W
ATER
H
EATER
B
YPASS
V
ALVES
(I
F
S
O
E
QUIPPED
)
Use the factory installed water heater bypass, available in most floor plans, to
avoid filling the water heater with RV antifreeze. Bypass valves are normally
located in close proximity to the water heater.

NOTE: In Fig 8.6a-c , valve D is the fresh water tank shutoff, and valve E is
used to introduce RV antifreeze into the lines to Winterize the system. (See
section on
Winterizing the Plumbing System ) Valve D is normally open to
supply fresh water to the supply lines. Valve E is normally closed.
Valves D & E are located near the water pump under a bed or dinette bench.
Normal Camping Usage: Valves A&B Open
Valve C is Closed
Bypass Mode: Valves A&B Closed
Valve C is Open
Fig 8.6 Water Heater Bypass Diagram
Fig. 8.5 Water Heater
pilot ignition (Robert
Shaw control)
Pilot Reset
Button
Gas valve
Temp.
P&T valve
Fig. 8.6a Valves D & E
located under the bed
Fig. 8.6b Valve E
(winterizing)
Valve E
Valve D
Fig. 8.6c Valve D
(tank shutoff)