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SECTION 8
PLUMBING SYSTEMS
will form in the tank by design; however, it will
be reduced over time by the everyday use of
your water heater. To replenish this air
pocket:
12. Turn off the water heater.
13. Turn off the cold water supply line.
14. Open a faucet in the RV.
15. Pull out the handle of the pressure relief
(P&T) valve and allow water to flow from
the valve until it stops.
16. Release the handle on the P&T valve - it
should snap closed.
Close the faucet and turn on the cold water
supply. As the tank fills, the air pocket will
develop. Repeat this procedure as often as
needed to reduce the frequency of the
weeping P&T valve.
Anode rod protection
The tank in the Suburban water heater is
protected by a magnesium or aluminum
anode to prolong the life of the tank by
absorbing the corrosive action of hot water.
Under normal use, the anode rod will
deteriorate and because of this, the water
heater OEM recommends the anode rod be
replaced yearly. Water with high levels of iron
and/or sulfate will increase the rate of
deterioration; therefore, more frequent
replacements may be required.
If an anode rod is mostly eaten away, replace
it with a new one. The water heater
manufacturer recommends replacement of
the anode rod when consumption or weight
loss is greater then 75 percent.
Fig. 8.7 Suburban anode rod replacement chart
To prevent a water leak when replacing the
anode rod, a pipe thread sealant approved for
potable water (such as Teflon Tape) must be
applied to the threads of the anode rod.
Proper application of a thread sealant will not
interfere with the anode’s tank protection.
Operating the water heater without the proper
anode rod protection will decrease tank life
and will void the vendor warranty on the tank.
Maintenance
Do not allow the burner to burn with a yellow
flame, because sooting will occur. Do not
continue operating the water heater with an
improper burner flame. Periodically, inspect
the water heater for soot. If soot is present
anywhere on your water heater, immediately
shut the unit down and contact your dealer or
a qualified service agency. Soot is a sign of
incomplete combustion and must be corrected
before operating the water heater.
Draining the water heater
The Suburban water heater tank is drained by
removing the anode rod (an Atwood water
heater is manufactured differently and it does
not have an anode rod). To extend anode life,
drain water from the water heater tank
whenever the RV is not being used. Avoid any
extended time of non-use with water in the
water heater tank. The water heater should be
drained and bypassed during the winterization
process particularly if introducing RV
antifreeze into the plumbing system.
Water heater bypass
The water heater bypass is a three-valve
system located in the universal docking
center. The water heater bypass valves must
be in the NORMAL position (open the hot and
Do not replace the anode rod or any other
component 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.
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Summary of Contents for Recon ZX 2011
Page 30: ...SECTION 3 PRE TRAVEL INFORMATION 26 THIS PAGE IS INTENTIONALLY BLANK ...
Page 36: ...SECTION 4 TOWING HANDLING 32 THIS PAGE IS INTENTIONALLY BLANK ...
Page 40: ...SECTION 5 RV TIRES 36 THIS PAGE IS INTENTIONALLY BLANK ...
Page 50: ...SECTION 7 FUEL SYSTEM 46 THIS PAGE IS INTENTIONALLY BLANK ...
Page 66: ...SECTION 8 PLUMBING SYSTEMS 62 THIS PAGE IS INTENTIONALLY BLANK ...
Page 74: ...SECTION 9 PROPANE SYSTEM 70 THIS PAGE IS INTENTIONALLY BLANK ...
Page 100: ...SECTION 13 SPECIFICATIONS GLOSSARY OEM WHEEL LUG TORQUE CHART 96 ...