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Owner's Manual
Model Numbers
Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02
AHE-100-02S -12 VDC
AHE-200-02S - 24 VDC
Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02

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Table of Contents
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Summary of Contents for Aqua-Hot AHE-100-02S -12 VDC

  • Page 1 Owner’s Manual Model Numbers Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02 AHE-100-02S -12 VDC AHE-200-02S - 24 VDC Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02...
  • Page 2 Aqua-Hot Serial No: Please Mail To: Vehicle Systems Warranty Department 15549 East Highway 52 Ft. Lupton, CO 80621 Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02 Vehicle Systems, Inc. Warranty Department 15549 East Highway 52 Ft. Lupton, CO 80621 Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02...
  • Page 3: Table Of Contents

    Burner and an AC powered Electric Heating Element (120 VAC). These two heating sources maintain the temperature of the Aqua-Hot's solution of water and antifreeze. In addition, the Aqua-Hot has been designed to preheat the vehicle's engine prior to starting. This feature provides easy engine start-up whenever cool weather conditions are present.
  • Page 4 Figure 1 Hot Water (Domestic Water) Outlet (Domestic Water) Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02 Page 1-2 SECTION 2: OPERATING INSTRUCTIONS Heat Please read the complete Owner’s Manual prior to operating your Aqua- Hot Heating System. Also, be sure to fill out and mail in your Owner’s Source Information Card located at the front of this manual.
  • Page 5 Hot Water When the Aqua-Hot is at operating temperature, the domestic 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 continuous and is accomplished by the Aqua-Hot’s Mixer...
  • Page 6: Overview

    SECTION 2: OPERATING INSTRUCTIONS Engine B. Turn OFF the Aqua-Hot's Engine Preheat Switch whenever engine preheating is not desired. Preheat, continued NOTE: The Aqua-Hot's Engine Preheating System acts as a supple- mental heating source, in addition to the Diesel-Burner and the 120 VAC Electric Heating Element.
  • Page 7: Operating Instructions

    "FUEL SOLENOID VALVE" (#6) opens and fuel is sprayed into the "COMBUSTION CHAMBER" (#10) through the "FUEL NOZZLE" (#9). Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02 Page 2-6 SECTION 2: OPERATING INSTRUCTIONS Diesel- 2.5 Diesel-Burner Operational Flow-Chart Burner B.) The Aqua-Hot's Diesel-...
  • Page 8: Precautions

    3.1 Maintenance Schedule Monthly Check the Aqua-Hot's solution of water and antifreeze to ensure that it is at the proper level. Do this by visually checking the coolant level in the Aqua-Hot's Expansion Tank, see Figure 1. This should be checked only when the Aqua-Hot is at operating temperature, “HOT.”...
  • Page 9: Winterization

    Aqua-Hot's domestic hot water system. NOTE: The Aqua-Hot can still be used for interior zone heating even if the domestic hot water system has been drained and winterized. Follow the instructions listed below when winterizing the Aqua-Hot’s domestic water system: A.
  • Page 10: Troubleshooting

    SECTION 5: TROUBLESHOOTING Prior to troubleshooting your Aqua-Hot, be sure to reference Figure 1 for a complete overview of the heating system, and Figure 2 for a complete component overview of the Diesel-Burner. Also, please review Section 2.5 of this manual for details on the Diesel-Burner’s operation. Use the following chart when troubleshooting your Diesel-Burner only.
  • Page 11: Warranty Policy

    WARRANTY POLICY - FOR AQUA-HOT MODELS - Vehicle Systems Inc. warrants the AQUA-HOT Heater, to the original owner, to be free from defects in material and workmanship under design usage and service conditions for a period of two (2) years on parts and labor beginning on the date of purchase of the vehicle. Replacement parts are covered for the remainder of the heating systems warranty or for six months (180 days) which ever is greater.
  • Page 12 OWNER’S SERVICE LOG: (Continued) Date Scheduled Service Service Center Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02 OWNER’S SERVICE LOG: (Continued) Date Scheduled Service Service Center Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02...
  • Page 13 Aqua-Hot™ Motor Coach Heating System Owner's Manual 05/02 Motor Coach Heating Specialists Motor Coach Heating Specialists Motor Coach Heating Specialists · · · · · Manufacturers and Distributors Motor Coach Heating Specialists Motor Coach Heating Specialists Manufacturers and Distributors Manufacturers and Distributors...
  • Page 14 AQUA-HOT PARTS MANUAL Parts Manual Model Numbers AHE-100-02S -12 VDC AHE-200-02S - 24 VDC * Asterick denotes 24 volt model Aqua-Hot Motor Coach Heating System Parts Manual 06/02...
  • Page 15 WPX-425-060 Motor, Combustion Air/Fuel Pump, 12 VDC, DBW-2010, AH/HH/WH WPX-425-079 Motor, Combustion Air/Fuel Pump, 24 VDC, DBW-2010, AH/HH/WH WPX-350-516 Clutch Half, 6mm, DBW-2010, AH/HH/WH * Asterick denotes 24 volt model Page 1-1 Aqua-Hot Motor Coach Heating System Parts Manual 06/02...
  • Page 16 AQUA-HOT PARTS MANUAL Diesel Burner Parts, continued * Asterick denotes 24 volt model Page 1-2 Aqua-Hot Motor Coach Heating System Parts Manual 06/02...
  • Page 17 O-Ring, Blower Casing, DBW-2010, AH/HH/WH WPX-225-67A Casing, Blower, DBW-2010, AH/HH/WH WPX-298-964 Grommet, Blower Casing, Left, DBW-2010, AH/HH/WH WPX-299-995 Grommet, Blower Casing, Right, DBW-2010, AH/HH/WH Diesel Burner Parts, continued * Asterick denotes 24 volt model Page 1-3 Aqua-Hot Motor Coach Heating System Parts Manual 06/02...
  • Page 18 AQUA-HOT PARTS MANUAL See page 1-6 for part number details on items 104 through109. Diesel Burner Parts, continued * Asterick denotes 24 volt model Page 1-4 Aqua-Hot Motor Coach Heating System Parts Manual 06/02...
  • Page 19 Screw, Nozzle Stand Plate, DBW 2010-300, AH/HH/WH WPX-102-861 Plate, Nozzle Stand, DBW-2010, AH/HH/WH WPX-371-289 Gear, Drive, Nylon, DBW 2010-300, AH/HH/WH WPX-152-390 Snap Ring, Gear, DBW 2010-300, AH/HH/WH * Asterick denotes 24 volt model Page 1-5 Aqua-Hot Motor Coach Heating System Parts Manual 06/02...
  • Page 20 Fitting, Elbow 90°, 1/4 X 1/4 (F)NPT, Brass, AH FLX-038-204 Fitting, Steel, #6 (M)JIC X 1/4 (M)NPT, AH FLE-FUL-200 Fuel Kit, w/Fuel Line & Clamps, AH FLE-FUL-100 Fuel Kit, Steel Fittings, AH/HH * Asterick denotes 24 volt model Page 1-6 Aqua-Hot Motor Coach Heating System Parts Manual 06/02...
  • Page 21 PLX-105-810 Fitting, Bulkhead, 1/2 X 1/2 (F)NPT, Brass, AH/HH FLX-120-VS1 Filter, Fuel, System, 10 Micron, AH/HH FLX-R12-TRA Filter, Fuel, Spin-On Element, 10 Micron, AH/HH * Asterick denotes 24 volt model Page 1-7 Aqua-Hot Motor Coach Heating System Parts Manual 06/02...
  • Page 22 Fuse, 10 Amp, Spade Type, AH ELX-SR3-B05 Socket, Relay, Grey, AH ELX-W1A-486 Relay, 12 VDC, AH 136* ELX-W1A-487 Relay, 24 VDC, AH ELX-9P3-500 Clip, Support, Relay, AH * Asterick denotes 24 volt model Page 1-8 Aqua-Hot Motor Coach Heating System Parts Manual 06/02...
  • Page 23 15549 East Highway 52 • • • • • Fort Lupton, Colorado 80621 • • • • • 1-800-685-4298 • • • • • Fax: 303-857-9000      Copyright 2002 Vehicle Systems, Inc. All rights reserved www.aqua-hot.com * Asterick denotes 24 volt model Aqua-Hot Motor Coach Heating System Parts Manual 06/02 LTE-LMA-003...
  • Page 24 Shop Manual Model Numbers AHE-100-02S -12 VDC AHE-200-02S - 24 VDC Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 25 Diesel-Burner Service, Maintenance, and Repair Information General Maintenance Detaching the Diesel-Burner Head Flame Detection Photocell Ignition Electrodes Fuel Nozzle Fuel Solenoid Valve Fuel Pump Troubleshooting Troubleshooting Flow-Chart Aqua-Hot Warranty Information Parts List Special Tools Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 26 Element Access Diesel Fuel Panel Supply Diesel-Burner Control Diesel Fuel Unit Mixer Return Engine Valve Coolant Return Pressure-Relief Cold Water Valve Inlet Hot Water (Domestic Water) Outlet (Domestic Water) Figure 1 Page 1 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 27 I.D. Plate is located inside the heating unit to the right of the Electric Heating Element Access Panel, see Figure 1. MODEL No. AHE-100-02S SERIAL No. 02-637 Serial Number Model Number Figure 2 Page 2 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 28: Wiring Diagram

    Fresh Water Tank Diesel-Burner / Bay Whisper B-Plug (6 Pin) Heat Exchanger Figure 3 Orange Black Fresh Water Tank STAT Blue / Bay Thermostat (B-Zone ) For Technical Support call 1-800-685-4298 Page 3 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 29: Thermostat Wiring

    Thermostat, Black Wire 230˚F, Black Purple Wire "120 VAC POWER SUPPLY" Black ROMEX Wire to "LOAD" Black Wire White Wire 120 VAC / 1650 Watt Electric Heating Element Figure 4 Page 4 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 30 5. Combustion Air Fan Fuel Pump 6. Fuel Solenoid Valve Fuel Ports (Supply / Return) 7. Electrode Holder Combustion Air Port (Intake) 8. Ignition Electrodes with Adjustable Shutter 9. Fuel Nozzle Figure 5 Page 5 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 31 "COMBUSTION closes, which interrupts the without any additional CHAMBER" (#10) through supply of diesel fuel to the involvement from the operator. the "FUEL NOZZLE" (#9). "FUEL NOZZLE" (#9). Page 6 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 32 Betriebsuberdruck 2 bar Prufzeichen Serial Number (230410) Fabriknummer 1B230410 Inbetriebnahmejahr 2001 2002 2003 Diesel-Burner I.D. Plate is located on the left side of the Diesel-Burner Head Diesel-Burner Head Figure 6 Page 7 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 33 ( + ) Battery (Red) VDC Control Thermostat (White) ( - ) Indicator Light (Green) ( + ) Flame Detector (Green) ( - ) For All Heater Components (Brown) Figure 7 Page 8 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 34 General Maintenance Monthly Check the Aqua-Hot's solution of water and antifreeze to ensure that it is at the proper level. Do this by visually checking the coolant level in the Aqua-Hot's Expansion Tank, see Figure 1. This should be checked only when the Aqua-Hot is at full operating temperature, “HOT.”...
  • Page 35 Diesel Fuel Supply Fuel Return Figure 9 Instructions For Detaching the Diesel-Burner Head from the Aqua-Hot CAUTION: Before detaching the Diesel-Burner Head, disconnect all power supplies. 1. Loosen the two Eye-Bolt Nuts and swing the Eye-Bolts out of the way.
  • Page 36 Note: Once adjustment is Burner on the lefthand side. complete, remove Electrode Adjustment Gauge and reat- Electrode Adjustment Gauge tach to Diesel-Burner. Ignition Electrodes Figure 11 Adjustment gauge properly positioned Page 11 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 37 1/4 turn and firmly retighten. This will establish a seated Figure 12 fit and avoid any leaks. Fuel Solenoid Valve Solenoid Valve Electrical Terminals Fuel Solenoid Valve Fuel Solenoid Figure 13 Page 12 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 38: Fuel Pump

    (+) Clockwise rotation increases fuel pressure. (-) Counter Clockwise rotation decreases fuel pressure. Fuel Pressure Gauge Note: Fuel Pressure gauge replaces the Fuel Nozzle when adjusting fuel pressure. Figure 14 Page 13 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 39 Fahrenheit 1. Replace the Thermostat. Is there continuity when checking the across the "VDC CONTROL 2. Attempt heater restart. Thermostat? THERMOSTAT" for continuity, see Figure 4. 2. Attempt heater restart Page 14 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 40 After approx. 20 seconds WARNINGS: of operation a bright blue arc (spark) should appear 1. DO NOT attempt to restart the Aqua-Hot when the "DIESEL- across the "IGNITION BURNER HEAD" is detached. An open flame can result and ELECTRODES" (#8), see cause serious personal injury.
  • Page 41 "FUEL SOLENOID VALVE" HEAD" (see Figure 9) and (#6) (see Figure 13) wire and C-plug. attempt heater restart. 3. Reattach "DIESEL-BURNER HEAD" (see Figure 9) and attempt heater restart. Page 16 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 42 VDC power (+) and port? (click)? ground(-) to the Solenoid Valve electrical terminals. "FUEL SOLENOID VALVE" (#6) (see Figure 13) should click when VDC power is applied. Page 17 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 43 Burner's "FUEL PUMP" (#14) (see Figure 14) should be calibrated for the proper fuel pressure setting. End of Troubleshooting Flow- Chart. For additional troubleshooting information please contact: Vehicle System's Service Dept. at 303-857-2901 Page 18 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 44 (180 days) whichever is greater. This warranty does not apply to damage or failure of the AQUA-HOT Heater or the vehicle into which it was installed due to improper installation, assembly, maintenance, abuse, neglect, accident, or the use of parts not supplied by Vehicle Systems Inc.
  • Page 45 ELE-010-198 Thermostat, VAC Control, 198° F, Red Dot, AH FLX-120-VS1 Filter, Fuel, System, 10 Micron, AH/HH FLX-R12-TRA Filter, Fuel, Spin-On Element, 10 Micron, AH/HH * Asterick denotes 24 volt model Page 20 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 46 Gauge Kit, Fuel Pressure, DBW 2010-300, AH/HH/WH **************** Tester, CO-2, DBW 2010-300, AH/HH/WH Order item #140 from a Grainger Industrial Supply Store near you or visit the Grainger website at www.grainger.com. (Grainger Part# 6 153) Page 21 Aqua-Hot™ Hydronic Heating System Shop Manual REV-A 03/02...
  • Page 47 15549 East Highway 52 • • • • • Fort Lupton, Colorado 80621 • • • • • 1-800-685-4298 • • • • • Fax: 303-857-9000      Copyright 2002 Vehicle Systems, Inc. All rights reserved www.aqua-hot.com LTE-LMA-004...

This manual is also suitable for:

Ahe-200-02s - 24 vdc

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