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Aqua-Hot 675-D Owner's Manual

Hydronic heating system
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Download this manual See also: Use and Care Manual, Installation Manual
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© 2008 Aqua-Hot Heating Systems Inc.

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Summary of Contents for Aqua-Hot 675-D

  • Page 1 ’ wner anual © 2008 Aqua-Hot Heating Systems Inc.
  • Page 2 TABLE OF CONTENTS Limited Warranty Statement Introduction Introduction to the Aqua-Hot Hydronic Heating System ������������������������������������������������������������������������������ Page 1 Operating Instructions Activating the Aqua-Hot Hydronic Heating System ���������������������������������������������������������������������������������������Page 6 Zone Thermostat Operation �������������������������������������������������������������������������������������������������������������������������������Page 7 Using the Domestic Water Heating System ������������������������������������������������������������������������������������������������������Page 8 Aqua-Hot Operational Flow-Chart ��������������������������������������������������������������������������������������������������������������������Page 9...
  • Page 3 Thus, problems due to improper specifications, improper installations, improper use, the use of accessory parts or parts not authorized by Aqua-Hot Heating Systems Inc�, repair by unauthorized persons, and damage or abuse of the heater are specifically excluded from warranty coverage.
  • Page 4 4500 Watt, 240 VAC electric heating element� The Aqua-Hot 675-D also includes an engine preheat feature� ndIcates that personal Injury Is lIkely or ImmInent This preheat feature provides an easy engine start-up whenever cool weather conditions are present�...
  • Page 5 INTRODUCTION Figure 1 Figure 2 — Page 2 — © 2008 Aqua-Hot 675-D Hydronic Heating System Owner’s Manual ®...
  • Page 6 Water Access Zone 1 Panel Circulation Pump Zone 3 Circulation Pump Diesel-Burner Drain Valve Zone 2 Circulation Pump Engine Preheat Circulation Diesel-Burner Pump Controller Figure 4 — Page 3 — © 2008 Aqua-Hot 675-D Hydronic Heating System Owner’s Manual ®...

  • Page 7: Operating Instructions

    3� This procedure will activate the 2000 Watt/120 VAC Electric Aqua-Hot’s boiler tank� Failure to do so will cause serious dam- Heating Element and the indicator lights located on both the age to the heater�...

  • Page 8: Zone Thermostat Operation

    Figure 6 water is automatically heated as it is being used� Because the Aqua-Hot does not store any hot water, simply open any hot water faucet, and a continuous supply of domestic hot water will be present within a few seconds� This hot water feature is con- tinuous and is accomplished by the Aqua-Hot’s domestic water...

  • Page 9: Aqua-Hot Operational Flow-Chart

    Boiler Tank to be within the Boiler Tank is reheated, as reheated. needed, and continues warming the engine’s coolant as it circulates through the Aqua-Hot’s internal Engine Preheat System. — Page 6 — © 2008 Aqua-Hot 675-D Hydronic Heating System Owner’s Manual ®...

  • Page 10: Maintenance Schedule

    Annual Maintenance: To keep the Aqua-Hot running smoothly, it is ideal to have the diesel-burner tuned-up annually� A tune-up should consist of a new fuel nozzle and fuel filter. Reference Figure 9. To ensure maximum diesel-burner performance, always use the recom- mended fuel nozzle and fuel filter when replacing these parts.

  • Page 11: Winterizing The Domestic Water Heating System

    Not winterizing the Aqua-Hot when freezing temperatures at a time, until only pure RV Antifreeze is present� Perform are present will result in serious damage to the Aqua-Hot’s this procedure for both the hot and cold faucets� domestic water heating system. Also, be sure to use an Remove the hose and reconnect the domestic water demand FDA approved, “GRAS”...

  • Page 12: Troubleshooting

    1) Verify that the Aqua-Hot’s access cover is securely installed� The Aqua-Hot system will not operate if the access cover is a) Check the Aqua-Hot’s electronic controller for any not fully installed�...
  • Page 13 When this indicator light is off, no heat is being supplied to the Aqua-Hot’s boiler tank by either of these two heat sources� — Page 10 —...
  • Page 14 Antifreeze Types...
  • Page 15 APPENDIx A: ANTIFREEZE TyPES it should never be used in the Aqua-Hot’s Hydronic The following information addresses the neces- Heating System� This type of antifreeze is not formu- sary usage of a propylene glycol based “boiler” type lated to transfer heat, which is essential to the Aqua- antifreeze in the Aqua-Hot�...
  • Page 16 Antifreeze Mixture Water Quality Recommendations...
  • Page 17 APPENDIx B: ANTIFREEZE MIxTURE WATER QUALITy RECOMMENDATIONS Hard water possesses a high-level of calcium and In order to ensure maximum performance and longev- ity of an Aqua-Hot Heating System’s boiler tank and magnesium ions, which deplete the propylene glycol antifreeze’s corrosion inhibitors� This, in turn, causes...
  • Page 18 Antifreeze Terms and Mixture Ratio...
  • Page 19 -28ºF and a boil point of approximately 222ºF� Boiling Point: The following information should be utilized for the The Aqua-Hot utilizes the antifreeze and water heat- purpose of clarifying some terms commonly associated ing solution as a transportation means for the heat with antifreeze�...
  • Page 20 Aqua-Hot from providing adequate domestic Summary: hot water and interior heating� Antifreeze has three basic functions: freeze protec-...
  • Page 21 APPENDIx C: ANTIFREEZE TERMS AND MIxTURE RATIO Freezing Point Temperature (In Degrees Fahrenheit) — Page C-3 — © 2008 Aqua-Hot 675-D Hydronic Heating System Owner’s Manual ®...
  • Page 22 OWNER’S SERVICE LOG: Date Service Performed Service Center...
  • Page 23 15549 East Highway 52 • Fort Lupton, Colorado 80621 1.800.685.4298 • Fax: 303.857.9000 • www.aqua-hot.com LTE-907-681...

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