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USE & CARE GUIDE
400
SERIES
400-D

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Summary of Contents for Aqua-Hot 400 series

  • Page 1 USE & CARE GUIDE SERIES 400-D...
  • Page 2 Thank you for equipping your RV with an Aqua-Hot hydronic heating system! We value your business and are grateful for the trust you have placed with Aqua-Hot Heating Systems Inc. Our customers are top priority and we are committed to providing best-in-class products, service, and support.
  • Page 3 Comfort Zone #5: Over 160 Factory-Trained Service Centers You won’t need to service your Aqua-Hot often, but when you do, you can be confident in our Certified Service Centers that are close by and trained to assist you with all of your Aqua-Hot specific needs.
  • Page 4: Table Of Contents

    Contents Caution Notes Safety Instructions & Precautions --------------------------------------- 5 As you read this Information, take particular note Aqua-Hot Heating System Features of the NOTICE, CAUTION, WARNING and DANGER symbols when they appear. This infor- 400-D ------------------------------------------------------------------------------- 6 mation is important for safe and efficient use of Cut-Away Diagrams ----------------------------------------------------------- 7 the Aqua-Hot equipment.
  • Page 5: Safety Instructions & Precautions

     The hot water temperature is set at the mixing valve to  Read this Use & Care Guide before using your Aqua-Hot 120°F/ 48.9°C at the factory. Heating System to reduce the risk of injury to persons ...
  • Page 6: Aqua-Hot Heating System Features

    2. The Diesel Burner: This is the Aqua-Hot’s most powerful heat source and provides all of heating and hot water needs in cold temperatures or dry camping.
  • Page 7: Cut-Away Diagrams

    18. Zone 1 Circulation Pump 19. Zone 1 Inlet Port 20. Zone 2 Circulation Pump 21. Zone 2 Inlet Port NOTE: Service parts and accessories are available through Aqua-Hot Factory Authorized Service Center or at www.aquahot.com. 400-D Use & Care Guide © Aqua-Hot®...
  • Page 8: Controls Overview

    The fresh water thermostat Aqua-Hot’s boiler tank. Failure to do so will cause serious controls the bay heating area and should NOT be set below damage to the heater.
  • Page 9: Using The Water Heating System

    Instead, when the burner and/or elec- torhome. If you are unable to locate the switch panel, con- tric element switch is ON and the Aqua-Hot is at operating tact your dealer to guide you in the location and operation temperature, the water is automatically heated as it is be- of all switch operations.
  • Page 10: Operational Flowchart

    Hydronic Heat- ing System transferring heat to the heat exchanger, which is then transferred to the surrounding zone. The cooled antifreeze and water heating solution is returned to the boiler tank to be reheated. 400-D Use & Care Guide © Aqua-Hot®...
  • Page 11: Care And Maintenance

    Overview: Annual : The Aqua-Hot system requires minimal maintenance if In order to keep the Aqua-Hot running at its full potential, it’s monthly, annual, and proper winterization procedures are highly recommended to have the diesel-burner tuned up an- followed accurately. It is extremely important to follow the nually.
  • Page 12: Fluids

    Types: Due to the significant impact of various types of anti- freeze on the Aqua-Hot system, it is necessary to provide a thorough explanation regarding what should and should not be used. It’s very important use the correct type of anti- freeze for adequate operation and condition of the Aqua-Hot System.
  • Page 13: Mixture Ratios

    70% propylene Boiling Point: glycol, the freezing point is actually increase, resulting in The Aqua-Hot utilizes the propylene glycol based (PPG) less freeze protection. A perfect 50/50 mixture of water to antifreeze and water heating solution as a transportation propylene glycol, “GRAS”...
  • Page 14: Using A Refractometer

    Use extreme caution in gathering your antifreeze sample. scale. Make sure you are reading the scale When draining the Aqua-Hot heating system, extremely hot marked “Propylene” for measuring the antifreeze liquid may be in the boiler tank and could cause personal solution in the Aqua-Hot System.
  • Page 15: Troubleshooting Guide

    12 Volt-DC power supply circuitry. NOTE: An interlock switch prevents the Aqua-Hot from op- 2. The Aqua-Hot is off due to a combination of high electri- erating when the cover is not installed and properly in cal 12 Volt-DC power loads and a high surface tempera- place.
  • Page 16: Tempering Valve

    This that an electrical overload condition (i.e., short) has oc- valve is located in the back of the Aqua-Hot unit. Reference curred in a particular heating zone's circuitry. page 7 (part #15).
  • Page 17: Owner's Service Log

    Section #: Title Owner’s Service Log DATE SERVICE PERFORMED SERVICE CENTER 400-D Use & Care Guide © Aqua-Hot®...
  • Page 18: Owner's Service Log

    Section #: Title Owner’s Service Log DATE SERVICE PERFORMED SERVICE CENTER 400-D Use & Care Guide © Aqua-Hot®...
  • Page 19: Aqua-Hot Warranty

    2-YEAR LIMITED WARRANTY AQUA-HOT® HYDRONIC HEATING SYSTEM Aqua-Hot Heating Systems Inc. warrants the Aqua-Hot Heater to be free from defects in material and workmanship under normal use and service for a period of two years on both parts and labor commencing upon the original date of registration of the vehicle. Replacement parts are warranted for the remainder of the Heater’s standard warranty coverage or for six months,...
  • Page 20 LTE-907-607 Rev. B 7501 Miller Drive, Frederick, CO 80504 Visit us on line at www.aquahot.com Call us at 1(800) 685-4298 or (303) 651-5500 ©2013 Aqua-Hot Heating Systems Inc. Printed In U.S.A.

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