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Place the utility center valves in the "NORMAL" position (Fig A).
2.
Turn the water pump ON (make sure you have sufficient 12-volt power).
3.
4.
Water will be pumped from the fresh water tank to all faucets.
The tank (storage) water heater will fill first, followed by the supply lines and faucets.
5.
6.
Enter the motor home and open the cold water supply faucets to bleed air from the
water lines. When the water lines are nearly full, you may experience some "air
pockets." Allow these to escape before closing the cold water supply faucets.
7.
Turn the appropriate (12-volt GAS or 120-volt ELECTRIC) storage water heater power
switch ON. For a tankless water heater (if so equipped) turn the water heater power
switch ON (switch is located outside the RV at the water heater panel). Water will be
heated on demand.
Sanitize Tank: This setting is used to sanitize the fresh water tank. When the fresh water
tank drain and the low point drains are closed, a siphon is created in the water lines allowing
sanitizer to be pulled into the fresh water tank from an external container (see Sanitization
section).
Sanitize / Winterize Lines: This setting is typically used for drawing RV antifreeze into
the water lines of the motor home. When the fresh water tank drain and the low point drains
are closed, a siphon is created in the water lines allowing antifreeze to be pulled into the
water lines. This setting will not allow antifreeze into the fresh water tank (see Winterization
section).
Water Heater Bypass – 3 Valves/No Utility Center (If So Equipped)
Most models have a factory installed water heater bypass that enables you to avoid filling the
water heater with RV antifreeze. The 3-Valve Bypass is typically located in close proximity
to the water heater.
NOTE: In the 3-valve bypass diagram, valve D is the fresh water
tank shutoff. Valve E is used to introduce RV antifreeze into the lines
when winterizing the system and has a clear hose attached to it. See
Winterizing the Plumbing System. Valves D & E are typically located
near the water pump, which may be under a dinette bench, kitchen
island, or bed.
Maintenance Record
Section 8: Plumbing System
Table of Contents
109
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