Dometic ASCDU15HV 1161 Installation And Operation Manual Download Page 15

15

EN

Universal Air Conditioning Unit 

Operation

Check Parameters

L1 to L2/N Volts

V

Have the indoor unit fan settings been checked? (Y/N)
Has the outdoor unit fan operation been checked? (Y/N)
Entering indoor unit air temperature

°F   or   °C

Leaving indoor unit air temperature

°F   or   °C

Outside air temperature

°F   or   °C

Total unit amperage in Cool Mode

A

7  Operation

This section contains the necessary information in 
order to properly operate the air conditioner and the 
Q3 control once the initial startup sequence has been 
completed.

 

WARNING: FIRE AND/OR EXPLOSION 
HAZARD . 

R-410A refrigerant systems operate at higher 
pressures than standard R-22 systems. Do 

not

 use 

R-22 to service the equipment or components on 
R-410A refrigerant equipment. Failure to obey this 
warning could result in death or serious injury.

 

WARNING: BREATHING HAZARD . Failure to 
obey these warnings could result in death or 
serious injury .

•  Refrigerants are heavier than air. They can “push out” 

the oxygen in your lungs in an enclosed space. To 
avoid possible death or difficulty breathing:

 

Never

 sniff a refrigerant.

 

Never

 purge refrigerant into an enclosed room or 

space. All refrigerants must, by law, be reclaimed.

 

– If an indoor leak is suspected, thoroughly ventilate 

the area before beginning work.

•  Never

 burn refrigerant as poisonous gas will be 

produced.

•  Always follow EPA guidelines.

 

WARNING: BURN HAZARD . 

Liquid refrigerant can be very cold. To avoid 
possible frostbite or blindness, avoid contact 
and wear gloves and goggles. If liquid refrigerant 
does contact your skin or eyes, get medical help 
immediately. Failure to obey this warning could 
result in death or serious injury.

 

I

This unit is factory charged with the required 
amount of refrigerant. If refrigerant recharging is 
required, call Dometic for the proper amount of 
refrigerant required for this system.

 

I

The electrical power source must agree with the 
units’ data plate rating. Check the tightness of all of 
the electrical connections. Ensure all barriers and 
covers are in place at this point.

7 .1  Understanding Button 
Functions

 

I

For the button locations and Q3 control functions, 
refer to “Q3 Control” on page 6.

The following list contains the button functions for the 
Q3 control.

•  Mode button –

 Press and release to toggle between 

the Off and all other modes of operation.

•  Up button –

 Press and release to display the set 

point. Press and hold the Up button to increase the 
set point. The set point increases one degree each 
time the button is pressed.

Summary of Contents for ASCDU15HV 1161

Page 1: ...S AIR CONDITIONER L 5005 Form No 340813 20200305 2020 Dometic Corporation AUTO DEHUMIDIFY ASCDU15HV 1161 Q3 Control EN Universal Self Contained Air Conditioning Unit and Q3 Control Installation and Op...

Page 2: ...9 Installing the Optional Outside Air Temperature Sensor 13 6 10 Start Up Checklist 14 7 Operation 15 7 1 Understanding Button Functions 15 7 2 Normal Heating or Cooling Cycle 16 7 3 Modes and Progra...

Page 3: ...tand these instructions before installing or operating this product The installation must comply with all applicable local or national codes including the latest edition of the following standards U S...

Page 4: ...luorocarbon HFC refrigerant R 410A refrigerant operates at a higher pressure than R 22 Ensure that the servicing equipment and replacement components used are designed to operate with R 410A I IRefer...

Page 5: ...ressor Start Capacitor yHigh Pressure Switch HPS 1 Compressor Run Capacitor uLow Pressure Switch LPS 1 Evaporator Blower Capacitor i10 ft 3 m Interconnect Cable 2 Condenser Blower Capacitor oElectrica...

Page 6: ...able Functions Ranges and Factory Defaults on page 18 12 Off Mode Indicator Lights when the system is off Note that the Data Display remains on You can continue to adjust the set point display reading...

Page 7: ...esulting from mechanical influences and excess voltage Alterations to the product without express permission from the manufacturer Use for purposes other than those described above Dometic Corporation...

Page 8: ...4 18 38 in 46 cm 5 20 37 in 51 cm 6 20 13 in 51 cm Evaporator Side View 7 17 75 in 45 cm 8 14 88 in 38 cm 4 3 Electrical Box Dimensions i t u y r e w q d f o s a Top Front Side 5 Electrical Box Dimen...

Page 9: ...udes the drill and cut template P N 086812 4 5 Cable Lengths Description Size Display Cable 15 ft 5 m Typical Indoor Air Sensor 15 ft 5 m Standard on Self Contained Systems Outside Air Sensor optional...

Page 10: ...9 7 2 10 18 19 11 3 1 6 17 16 5 4 12 13 15 14 8 19 2 7 18 10 9 17 6 1 3 11 12 4 5 16 15 13 14 2 IF PRESENT ON BOARD JUMPER CSNB MUST BE CUT WHEN USING A CONTACTOR OR SOLID STATE RELAY ON THE COMPRESS...

Page 11: ...icing Dometic equipment to prevent any loss of refrigerant Failure to obey this caution could result in minor or moderate injury NOTICE This product contains R 410A fluorinated greenhouse gas in seale...

Page 12: ...oper use and may cause damage to the electrical components I IConnect the wiring as per the wiring diagram located on the unit 1 Connect the vehicle s power supply to the unit 2 Install a ground fault...

Page 13: ...lug the cable into the port labeled INSIDE on the circuit board located in the electrical box 6 8 Installing the Q3 Control 1 Plan the location of the display using the drill and cut template P N 0868...

Page 14: ...including the main power supply tight Y N 6 10 2 Starting the Unit 1 Turn the circuit breaker for the air conditioner to the On position 2 Turn the control on 3 Use the Q3 control to set the system f...

Page 15: ...refrigerants must by law be reclaimed If an indoor leak is suspected thoroughly ventilate the area before beginning work Never burn refrigerant as poisonous gas will be produced Always follow EPA gui...

Page 16: ...n operation When in Auto fan mode the fan speed will return to low speed once the set point temperature has been satisfied and the cooling or heating cycle has ended 7 3 Modes and Programmable Functio...

Page 17: ...inside temperature If inside temperature is greater than 99 F 37 C or less then 0 F 17 C the display shows either 99 F 37 C or 0 F 17 C respectively as the maximum or minimum inside temperature 7 3 7...

Page 18: ...C 2 31 4 Fan Response Differential 8 8 8 1 F 0 6 C 2 31 5 Low Fan Speed 38 2 57 6 High Fan Speed 85 41 99 7 Fan Mode C Continuous C Continuous I Intermittent 8 AC Line Voltage Calibration Plus or min...

Page 19: ...e delay before the display shows readings If an attempt is made to change the five minute time delay the changes will not be recognized by the system 2 Fahrenheit Celsius or Auto Selection Select F fo...

Page 20: ...antly The high fan speed adjustment allows you to set the maximum high speed voltage to the threshold of the blower high speed response The Q3 control system divides the fan speed voltage steps into f...

Page 21: ...boats For very humid climates shorten the overall time period and extend the dehumidification time In dry climates select a longer overall time period between cycles and a shorter dehumidification ti...

Page 22: ...and the display will show OA closed circuit if the high pressure switch circuit is OK or FA open circuit if the high pressure switch circuit has a fault or system is overcharged or has loss of condens...

Page 23: ...in aux heat heat mode I IWhen you enable the aux heat heat function h1 the fan will delay turning off for 30 seconds to allow the auxiliary heater to cool down The delay occurs when the auxiliary heat...

Page 24: ...faults on page 18 3 Press the Mode button to access the programmable value of the displayed function number The function s current value flashes on the display 4 Press the Up or Down buttons to change...

Page 25: ...reduced There is low airflow through the system The airflow through the evaporator is blocked Inspect for and remove any obstructions in the return air stream Clean the return air filter and grille C...

Page 26: ...oad is open due to lack of air flow though the condenser Allow the compressor to cool Turn the system off for a while it may take up to three hours to reset the thermal overload 10 2 Digital Controls...

Page 27: ...before reprogramming the Q3 control Change Programmable Function 21 to increase the duration of the Anti Icing Routine If the anti icing cycle does not melt the ice switch the air conditioning unit t...

Page 28: ...ntrol board The low pressure switch opens when the suction pressure drops below a preset minimum limit If the low pressure switch opens the unit will first run for two minutes and then shut down for 5...

Page 29: ...conds the Q3 control shows a constant Cool or Heat Mode may be selected for emergency operation and the display will show a constant Emergency Operation Ar FL The Q3 control flashes Ar FL for 15 secon...

Page 30: ...aning the Return Air Filter Check the Return Air Filter once a month or more often if local conditions and usage patterns dictate and replace or clean as necessary To clean the filter Remove the filte...

Page 31: ...coils may result in reduced performance Avoid the use of the following Coil brighteners High pressure washers Poor quality water for cleaning Use of non recommended coil cleaners is strongly discoura...

Page 32: ...Mobile living made easy dometic com YOUR LOCAL DEALER dometic com dealer YOUR LOCAL SUPPORT dometic com contact YOUR LOCAL SALES OFFICE dometic com sales offices...

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