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Aqua-Hot™ Hydronic Heating System Owner’s Manual  07/04

is operating.  Please note that this light will only be active if the Engine Preheat

switch is 

ON

 in conjunction with either the Diesel and/or the Electric switch.  If

this indicator light illuminates RED, it indicates an electrical overload condition

(i.e., short) has occurred in this particular component’s circuitry.

Heating Status Indicator Light:

This indicator light will illuminate GREEN whenever the Aqua-Hot’s VDC / VAC

Control Thermostat is calling for heat, allowing the water and antifreeze

solution in the Aqua-Hot’s Boiler Tank to be heated by either the Diesel-Burner

and/or the Electric Heating Element(s).  When this indicator light is off, no

heat is being supplied to the Aqua-Hot’s Boiler Tank.

NOTE:

The Aqua-Hot’s VDC / VAC Control Thermostat will automatically

activate the Diesel-Burner and/or the Electric Heating Element(s), 

only

 if

the Diesel and/or Electric switch is in the 

ON

 position.  Therefore, to heat 

your motorhome / domestic hot water, simply choose the desired heat

source(s) and leave the switch(s) (i.e., Diesel and/or Electric)

ON.

Electric Heating Element Status Indicator Light:

This indicator light will illuminate GREEN whenever the Aqua-Hot’s Electric

Heating Element(s) is operating and providing heat to the Aqua-Hot’s Boiler

Tank.  Please note that this light will only be active if the Electric switch is in

the

ON

position.  If this indicator light illuminates RED, it indicates an electrical

overload condition (i.e., short) has occurred in the Electric Heating Element’s

VDC powered circuitry.

Electronic

Controller

,

continued

SECTION  6: TROUBLESHOOTING

Page  11

Summary of Contents for AHE-120-04X

Page 1: ...Aqua Hot Hydronic Heating System Owner s Manual 07 04 OWNER S MANUAL Model Number AHE 120 04X 12 VDC...

Page 2: ...l Address Motorhome Model Date of Purchase Motorhome Aqua Hot Model No reference Figure 1 Marking Plate Aqua Hot Serial No reference Figure 1 Marking Plate Vehicle Systems Warranty Department 15549 Ea...

Page 3: ...em 4 3 4 Diesel Burner Component Overview 5 3 5 Diesel Burner Operational Flow Chart 5 3 6 Precautions 6 Section 4 Maintenance 4 1 Maintenance Schedule 7 Section 5 Winterization 5 1 Domestic Hot Water...

Page 4: ...FDA For additional information regarding this GRAS antifreeze product please contact the Technical Support Department at 1 800 685 4298 or visit the website at www vehiclesys com SECTION 1 OVERVIEW Aq...

Page 5: ...1 800 685 4298 By Vehicle Systems Inc Ft Lupton CO 80621 Manufactured Date Box Serial Number Box Model Number Box SECTION 1 OVERVIEW Figure 2 2 1 Activating the Aqua Hot Heating System Diesel Burner T...

Page 6: ...rner and the Electric Heating Element s are thermostatically controlled Either or both heating sources will automatically maintain the temperature fo the Aqua Hot s water and antifreeze solution betwe...

Page 7: ...procedure will activate the Engine Preheat Circulation Pump and circulate the engine s coolant through the Engine Preheat System This feature will adequately warm the engine for easy start ups on coo...

Page 8: ...lling for heat will the Motor 2 begin to operate Operation sequence once the Aqua Hot s Diesel switch is turned ON NOTE The Diesel switch s Indicator Light will illuminate reference Figure 3 while the...

Page 9: ...esel Burner will automatically turn back ON once the coolant temperature reaches the preset temperature of approximately 160 5 degrees Fahrenheit The Motor 2 will continue to run for approximately thr...

Page 10: ...plenishing fill the Aqua Hot s Expansion Tank to the FULL HOT level mark Be sure to use a 50 50 mixture of water and P G antifreeze Annually WARNING Before cleaning or servicing disconnect all power s...

Page 11: ...quate piece of hose onto the suction side of the domestic water demand pump D Place the opposite end of the hose into an adequate supply of FDA approved RV Antifreeze E Open close all interior and ext...

Page 12: ...te by unscrewing the four cover screws C Remove the Aqua Hot s Access Cover and check for loose plug connec tors on the Diesel Burner s Control Unit located on the under side reference Figure 1 D Chec...

Page 13: ...each particular zone is calling for heat The GREEN indicator lights also indicate that VDC power is being supplied to the particular interior heating zone s Heat Exchangers i e fan motors If any of th...

Page 14: ...ng supplied to the Aqua Hot s Boiler Tank NOTE The Aqua Hot s VDC VAC Control Thermostat will automatically activate the Diesel Burner and or the Electric Heating Element s only if the Diesel and or E...

Page 15: ...the Heater by the end user 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...

Page 16: ...Aqua Hot Hydronic Heating System Owner s Manual 07 04 Date Service Performed Service Center OWNER S SERVICE LOG Date Service Performed Service Center OWNER S SERVICE LOG Continued...

Page 17: ...Aqua Hot Hydronic Heating System Owner s Manual 07 04 MEMO...

Page 18: ...s Manual 07 04 Aqua Hot Motor Coach Heating System Owner s Manual 08 03 15549 East Highway 52 Fort Lupton Colorado 80621 1 800 685 4298 Fax 303 857 9000 Copyright 2003 Vehicle Systems Inc All rights r...

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