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Vehicle Systems Aqua-Hot AHE-100-04S, Owner'S Manual, Page: 10 / 19

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Vehicle Systems Aqua-Hot AHE-100-04S Owner'S Manual Download Page 10

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

Page  7

SECTION 3:   OPERATING INSTRUCTIONS

Diesel-

Burner

Operational

Flow-Chart

NOTE:

If the Aqua-Hot’s coolant 

temperature is 

approximately 190 (+/- 5) 

degrees Fahrenheit, or 

higher, the 

Motor (#2)

will not operate. Only 

when the coolant 

temperature has 

dropped below 160 

(+/- 5) degrees 

Fahrenheit, and the 

VDC

/ VAC Control 

Thermostat

 is calling 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 

Heating Status

 and 

Diesel-Burner Status 

lights illuminate on the 

Electronic Controller

,

reference Figure 6

.

The

Motor (#2)

, which 

turns the 

Combustion

Air Blower (#5)

 and 

drives the 

Fuel Pump

(#14)

, will begin to 

operate.

After approximately 10 - 25 

seconds, the 

Fuel

Solenoid (#6)

 opens and 

fuel is sprayed into the 

Combustion Chamber 

(#11)

 through the 

Fuel

Nozzle (#9)

.

Once the ignited air-fuel 

mixture (FLAME) is 

observed by the 

Flame

Sensor (#13)

, the 

Ignition

Coil (#3)

 will automatically 

switch

OFF

. The 

combustion process now 

continues to operate 

unassisted.

Simultaneously the 

Ignition Coil (#3)

produces a high voltage 

spark across the 

Ignition

Electrodes (#8),

 which 

ignites the incoming

 air-fuel mixture

.

3.5 Diesel-Burner Operational Flow-Chart

Reference Figure 3 for all numbers indicated inside parentheses. (e.g., #8).

SECTION 3:  OPERATING INSTRUCTIONS

The combustion process will 

continue to operate in this 

manner until one of the following

occurs:

A.)

 The 

VDC / VAC Control 

Thermostat

, which senses 

coolant temperature, reaches the 

preset temperature of 

approximately 190 (+/- 5) 

degrees Fahrenheit

.

NOTE:

If process "A" occurs, the 

Heating Status

 and 

Diesel-

Burner Status

 lights on the 

Electronic Controller

 will go 

OFF

, reference Figure 6.

B.)

 The Aqua-Hot’s 

Diesel

 switch 

is turned 

OFF

.

NOTE:

If process "B" occurs, the 

Diesel

switch’s

Indicator Light

, on the 

Switch Panel

 (reference Figure 

3), will go 

OFF

 along with the 

Heating Status 

and

Diesel-

Burner Status

 lights on the 

Electronic Controller

, reference 

Figure 6.

SUMMARY:

The Aqua-Hot’s 

Diesel-

Burner

 is in stand-by 

mode anytime the operator 

moves the 

Diesel

 switch 

(reference Figure 3) to the 

ON

 position. The 

Diesel-

Burner

 will then 

automatically ignite and 

maintain the coolant 

temperature in the Aqua-

Hot’s Boiler Tank without 

additional involvement 

from the operator.

1.)

 The 

Motor (#2)

 will 

shut-off once the three (3) 

minute

purge-cycle

 has 

expired.

-THEN-

2.)

 The Aqua-Hot’s 

Diesel-

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 three (3) 

additional minutes. This 

process is referred to as 

the

purge-cycle

, which 

cools down the heater’s 

internal components 

and purges the 

Combustion Chamber 

(#11)

 of any residual 

exhaust gases.

Once the heater switches 

OFF

, thermostatically or 

manually, the 

Fuel

Solenoid (#6)

 closes, 

which interrupts the supply 

of diesel fuel to the 

Fuel

Nozzle (#9)

.

NOTE:

When the Aqua-Hot’s 

Diesel-Burner

 is switched 

OFF

, by the 

VDC / VAC 

Control Thermostat

, the 

following process will take 

place:

3.5  Diesel-Burner Operational Flow-Chart

, continued

Diesel-

Burner

Operational

Flow-Chart

,

continued

SECTION 3:  OPERATING INSTRUCTIONS

Summary of Contents for Aqua-Hot AHE-100-04S

Page 1: ...Aqua Hot Hydronic Heating System Owner s Manual 07 04 Aqua Hot Motor Coach Heating System Owner s Manual 08 03 OWNER S MANUAL Model Number AHE 100 04S 12 VDC AHE 130 04X 12 VDC...

Page 2: ...l To OWNER S INFORMATION Owner s Name Address City State Zip Code Telephone E mail Address Motorhome Model Date of Purchase Motorhome Aqua Hot Model No reference Figure 1 Marking Plate Aqua Hot Serial...

Page 3: ...ot Water System 6 3 3 Using the Engine Preheat System 6 3 4 Diesel Burner Component Overview 7 3 5 Diesel Burner Operational Flow Chart 7 3 6 Precautions 8 Section 4 Maintenance 4 1 Maintenance Schedu...

Page 4: ...heating with hot water that provides a continuous on demand supply of domestic hot water as well as interior zone heating where and when it is needed Both heating features are accomplished by a uniqu...

Page 5: ...Serial Number Electric Heating Element AC Power Manufactured Date Fuel Type Firing Rate 02 637 120 VAC 60 Hz 1 65 kW 06 02 DIESEL 50 000 BTU R Testing Engineers International Listing No 02L02 Complie...

Page 6: ...ments Reference page 8 for operating instructions SECTION 2 ACTIVATING THE AQUA HOT S HEAT SOURCES Diesel Burner Operation 2 1 Activating the Diesel Burner Diesel Burner Turn the Diesel switch ON refe...

Page 7: ...the switch s i e Diesel and or Electric ON 2 3 Activating the Electric Heating Element s for the AHE 130 04X Model SECTION 2 ACTIVATING THE AQUA HOT S HEAT SOURCES Electric Element Operation AHE 130...

Page 8: ...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...

Page 9: ...Turn OFF the Aqua Hot s Engine Preheat switch whenever engine preheating is not desired NOTE The Aqua Hot s Engine Preheating System acts as a supple mental heating source in addition to the Diesel Bu...

Page 10: ...tat which senses coolant temperature reaches the preset temperature of approximately 190 5 degrees Fahrenheit NOTE If process A occurs the Heating Status and Diesel Burner Status lights on the Electro...

Page 11: ...it is at the proper level Do this by visually checking the coolant level in the Aqua Hot s Expansion Tank reference Figure 1 Please note that the coolant level should be checked only when the Aqua Hot...

Page 12: ...the Aqua Hot s Boiler Tank Failure to do so will cause serious damage to the Heater Upkeep continued Fuel Nozzle 0 35 GPH Combustion Chamber Fuel Filter 10 Micron Figure 5 SECTION 5 WINTERIZATION 5 1...

Page 13: ...RVIA Standard write to Recreation Vehicle Industry Association 1896 Preston White Drive P O Box 2999 Reston VA 20195 0999 or visit the RVIA website at www rvia com Storage continued SECTION 6 TROUBLE...

Page 14: ...ator Light This indicator light will illuminate RED whenever the VDC voltage level is too low for the Aqua Hot to operate properly This fault must be manually reset after the voltage level has been re...

Page 15: ...ease 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 a...

Page 16: ...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 17: ...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 18: ...Aqua Hot Hydronic Heating System Owner s Manual 07 04 MEMO MEMO...

Page 19: ...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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