Domestic Water System Requirements; Plumbing The Domestic Water System - Aqua-Hot 200 Series Installation Manual

Wiring Heat Exchangers Heat Exchanger Install
p. 16 ©Aqua-Hot® 250-D02 Diesel Series Installation Manual REV 220503

Domestic Water System Requirements

• Reference A119.2/NFPA 501C Standard on Recreational
Vehicles 1993 Edition for relevant regulatory information
regarding the design of Domestic Water Systems.
• The Aqua-Hot is equipped with a pressure relief valve and a
tempering valve in order to provide safe hot water without
chance of scalding or an over-pressurized system.
• Plumb the domestic water system according to Figure 27.
NOTE: Extended exposure to household bleach will corrode
the components of the Aqua-Hot that will potentially
dramatically shorten the operational lifetime of the Aqua-
Hot. Under no circumstances is the Aqua-Hot to be exposed
to household bleach for extended periods of time. This type
of damage is not covered by the Aqua-Hot warranty.
Figure 25
Demand Pump
Fresh Water
Storage Tank
Figure 26

Plumbing the Domestic Water System

The Aqua-Hot is also able to provide domestic hot water
while the boiler tank is up at operating temperature. Activate
the diesel burner to provide adequate heat for hot water needs.
The electric element will only provide light duty hot water.
The tempering valve is integrated into the cabinet of the
Aqua-Hot, and is set upon departure from the Aqua-Hot factory.
So long as the tempering valve is not modified, it will provide
hot, non-scalding water.
Instructions
1. Locate the domestic cold water inlet (blue PEX tube) and
connect it to the vehicle's domestic cold water system.
2. Locate the domestic hot water outlet (red PEX tube) and
connect it to the vehicle's domestic hot water system.
To Cold Water
Faucets
©Aqua-Hot® 250-D02 Diesel Series Installation Manual REV 220503
Domestic Water System
To Hot Water
Faucets
Tempered
Domestic Hot Water
Figure 27
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