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Appendix

System Schematics

©Aqua-Hot®

125-DN1 Service Manual

REV 220421

©Aqua-Hot®

125-DN1 Service Manual

REV 220421

p. 55

p. 54

Parts

ELX-232-948

AC Relay

SME-102-080

Cover, AC Element Cover for 125DN & 100DE

PLE-125-FL1

Kit, Fuel Line, 125DN

PLX-125-HA1

Kit, High Altitude Assembly, 125DN

ELE-100-111

Kit, Coach-Side Controller Components

Properly Apply Antifreeze to the Prism Assembly

Use the guide below to properly apply the ethylene glycol

mixture to the prism assembly of the refractometer. Once that

is complete, peer through the eyeglass of the refractometer to

continue to the next step.

Adjust the Boundary Line

Once the glycol solution has been properly applied, adjust the

calibration screw until the boundary line labeled “Ethylene

Glycol” is set to 32°F. The graphic to the right has been designed

as an aid, but note that it may differ from what is shown in the

refractometer sight glass.

Measuring Antifreeze Using a Refractometer

Eye Piece

Prism Assembly

Daylight Plate

Assembly

Calibration Screw

Refractometer Sight Glass

Boundary Line

Adjust to 32°F

Upper Blue

Field

Lower White

Field

Poor

Good

Application of Propylene Glycol

Poor

Good

Application of Ethylene Glycol

Содержание Aqua-Hot 100 Series

Страница 1: ...Service Manual 100Series AHE 125 DN1...

Страница 2: ...ed by transfer from the heated antifreeze and distilled water solution The heated domestic water then flows through the tempering valve to be mixed with cool water from the fresh water tank to achieve...

Страница 3: ...a Hot please contact our Technical Service Department at 574 AIR XCEL 574 247 9235 from 7 00am to 4 00pm MST Monday through Friday As with any appliance allow the Aqua Hot to completely shut down BEFO...

Страница 4: ...cing disconnect all power supplies DO NOT operate the diesel burner and or electric heating element without antifreeze and distilled water heating solution present in the Aqua Hot s boiler tank Doing...

Страница 5: ...2 Tempering Valve 3 Aqua Hot Controller 4 Antifreeze and Water Heating Solution Tank 5 AC Electric Element 6 AC Activation Relay 7 Plate to plate Heat Exchanger 8 Three Way Valve 9 Zone Air Bleed Val...

Страница 6: ...LCD screen From here the end user will select their interior temperature set points activate or deactivate the diesel burner and the electric element Zone Control 1 Precise zone control display will d...

Страница 7: ...utilized with the Aqua Hot 5in display Using the Aqua Hot with this new display will ensure that you can take advantage of all of the tools and features of this controller Features This new controller...

Страница 8: ...dicates that heat is either not needed or not requested by the zone thermostat 71 This indicates the set point of the coach thermostats The example in Figure 18 is showing the coach thermostat is requ...

Страница 9: ...ones have been directly wired to the Aqua Hot as described in the installation manual Heating sub systems can be activated independent of their control circuits and other control sensors as a means of...

Страница 10: ...ate Ensure the controller is properly oriented reference Figure 32 10 Using the 4 nuts previously removed fasten the controller to the mounting plate 11 Insert the controller and mounting plate into t...

Страница 11: ...to the INPUTS FROM AQUA HOT section HOME Aqua Hot Diagnostics DIAG Locate LLCO Does LLCO display TANK FULL Yes No This fluid level sensor is functioning as intended Replace the controller Troubleshoo...

Страница 12: ...this thermostat Yes No Depress the red button in the center of the high limit thermostat Figure 40 Re test for continuity Does the thermostat now have continuity Yes No This thermostat is functioning...

Страница 13: ...inue troubleshooting to the right Open a hot water faucet within the coach 1 1 2 2 Figure 47 Continue trouble shooting here Low Temperature Cutoff Thermostat Introduction The Low Temperature Cutoff Th...

Страница 14: ...s of the Three Way Valve to ensure it is out of the way 6 On the top of the Three Way Valve move the two 2 constant tension clamps AWAY from the tee fitting so that they are as far from the barb as po...

Страница 15: ...the Aqua Hot and slide the red and blue PEX through their ports in the front face of the Aqua Hot Use soapy water as necessary to lubricate the PEX going through the rubber grommets in the ports DO NO...

Страница 16: ...Figure 60 If no functionality replace the AC electric relay Figure 59 If tank temperature is not 180 F check element for 11 2 13 amps Replace the Electric element This AC Electric system is operating...

Страница 17: ...switch the electric heating element on and off in conjunction with the interior switch panel and ETS module even though the electric element is on a separate circuit Troubleshooting Procedure Trouble...

Страница 18: ...ely the same Yes This ETS module is functioning as intended Disconnect the ETS module from its leads on the wire harness Navigate back to the INPUTS FROM AQUA HOT section of the LCD screen No Yes No D...

Страница 19: ...Requirements Parts needed PLX 125 HA1 High Altitude Kit Potential other parts needed PLE 125 FL1 Kit 100 Series Fuel Line only if fuel lines are damaged PLX 125 003 Fuel Filter 100 Series only if fue...

Страница 20: ...Pins Figure 79 1 2 Ground goes to Pin 1 Power goes to Pin 2 If you would rather use a plug instead of the wire and gator clips the mating part numbers needed for the connector are Housing 1 967644 1 T...

Страница 21: ...uction A lack of interior heat or hot water when provided with adequate heat from either the electric element and or the diesel burner can be attributed to an overheat thermostat the Aqua Hot controll...

Страница 22: ...rner Troubleshooting This section will cover any issues with the external diesel burner The diesel burner is the primary heat source to the 125DN The troubleshooting procedures listed below are arrang...

Страница 23: ...or damage Check plumbing lines and circulation pump to make sure they are properly secured and free of any damage Check the fuel pump and circulation pump for any damage Run the burner for 20 minutes...

Страница 24: ...System Schematics System Schematics Aqua Hot 125 DN1 Service Manual REV 220421 Aqua Hot 125 DN1 Service Manual REV 220421 p 47 p 46 ZONE THERMOSTATS ZONE HEAT EXCHANGERS...

Страница 25: ...System Schematics System Schematics Aqua Hot 125 DN1 Service Manual REV 220421 Aqua Hot 125 DN1 Service Manual REV 220421 p 49 p 48 EXTERNAL DIESEL BURNER ELECTRIC ELEMENT...

Страница 26: ...de Connectors ELE 014 711 Thermistor Tank Temperature Sensor ELE 102 201 Aqua Hot AC Harness ELE 102 211 Burner DC Harness ELE 400 900 Harness Buehler C20 Pump ELX THM 309 Thermistor 10K NTC Room Temp...

Страница 27: ...00 Low Temperature Cutoff Thermostat w Spade Terminals ELX 2E7 102 125DN Element 1 NPSM 120 VAC 1500W Heating MSX 907 162 Refractometer EXE 103 0EX Heat Exchanger Cozy III PLX CTB 290 Clamp Hose Const...

Страница 28: ...that is complete peer through the eyeglass of the refractometer to continue to the next step Adjust the Boundary Line Once the glycol solution has been properly applied adjust the calibration screw u...

Страница 29: ...Heating Systems LLC 7501 Miller Drive Frederick CO 80504 Visit us online at www aquahot com Call us at 574 AIR XCEL 574 247 9235 2022 Aqua Hot Heating Systems LLC Printed in the USA Service Manual 10...

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