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Troubleshooting
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Summary of Contents for Dometic ASCDU15HV 1161
- Page 1 Universal Self-Contained Air Conditioning Unit and Q3 Control Installation and Operation Manual . . . . . . . .3 L – 5005 | Form No. 340813 20200305 | ©2020 Dometic Corporation...
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Page 2: Table Of Contents
For more product information: Installing the Optional Outside Air Visit: www.dometic.com Temperature Sensor ....13 6.10 Start Up Checklist ..... 14 Read these instructions carefully. -
Page 3: Explanation Of Symbols And Safety
DANGER! serious injury: Indicates a hazardous situation that, if not avoided, • Use only Dometic replacement parts and will result in death or serious injury. components that are specifically approved for use with the appliance. -
Page 4: General Information
This list provides the functions that are standard for the serious injury . Q3 control when used with the ASCDU15HV 1161. • Avoid puncturing or breaking the unit or any of the • 115 Volt, 60 Hz AC power supply unit’s tubing. -
Page 5: Component Identification
Universal Air Conditioning Unit General Information 2 .4 Component Identification 2 ASCDU15HV 1161 Air Conditioning Unit Component Locations Q3 Control Unity Control Board Evaporator Blower Assembly Compressor Contactor (30 A, 115 V) Condenser Blower Assembly Circuit Breaker (25 A, 250 V) -
Page 6: Controls Description
General Information Universal Air Conditioning Unit 2 .5 Controls Description AUTO COOL HEAT AUTO DEHUMIDIFY MODE 3 Q3 Control Ref . Description Ref . Description Data Display – Large LED readout displays Auto Mode Indicator – Illuminates when Auto Mode is current temperature, set point, programmed selected. -
Page 7: Intended Use
99% Non-Condensing the proper installation, operation, and maintenance of Weight 136 lbs (62 kg) your ASCDU15HV 1161 System. If you have questions or Length 30.12 in. (76 cm) require assistance with your unit, call your Dometic RV Service Department at +1 574-264-2131. -
Page 8: Air Conditioner Dimensions
4 .2 Air Conditioner Dimensions 4 .3 Electrical Box Dimensions (Front) (Condenser Side) (Evaporator Discharge Side) (Top) (Side) (Evaporator Side) 4 ASCDU15HV 1161 Dimensions 5 Electrical Box Dimensions Ref . Dimension Ref . Dimension Ref . Dimension Condenser Side View... -
Page 9: Q3 Control Dimensions
Universal Air Conditioning Unit Specifications 4 .4 Q3 Control Dimensions AUTO COOL HEAT AUTO DEHUMIDIFY MODE 7 Cut Out Dimensions Dimension Size 1 in. (25 mm) Hole in Bulkhead (for CXP Cable Connection) 0.1 in. (2 mm) Mounting Holes The Q3 Control package includes the drill and cut template (P/N 086812). -
Page 10: Wiring Diagram
Wiring Diagram Universal Air Conditioning Unit 5 Wiring Diagram *NOTES: 1. JUMPER #2 (JP2) MUST BE REMOVED WHEN USING LOW PRESSURE SWITCH OPTION. 2. IF PRESENT ON BOARD, JUMPER (CSNB) MUST BE CUT WHEN USING A CONTACTOR OR SOLID STATE RELAY ON THE COMPRESSOR OUTPUT. 8 19 8 System Wiring Diagram... -
Page 11: Installation
This includes the conditioning system. Special care must be taken clearance to combustible surfaces, airflow clearances, when installing, charging, and servicing Dometic wiring, and service access below, around, and above the equipment to prevent any loss of refrigerant. -
Page 12: Unpacking And Inspection
Installation Universal Air Conditioning Unit 6 .2 Unpacking and Inspection 6 .4 Mounting the Unit Units are securely packed. Upon arrival, carefully check 1. Use an appropriate tool to cut the required clearance all of the items against the packing list to ensure all of the to mount the unit into the planned location. -
Page 13: Installing The Required Ambient Temperature Sensor
Universal Air Conditioning Unit Installation Check all factory and field electrical connections for 6. Connect the other end of the display cable into the tightness. Field-supplied wiring shall conform with the port labeled “CA” on the circuit board located in the limitations of 63 °F (17 °C) rise. -
Page 14: Start Up Checklist
Installation Universal Air Conditioning Unit 6 .10 Start Up Checklist Refer to this checklist before starting the unit after the initial installation of the air conditioning system. 6 .10 .1 Pre-Start-Up Unit Is there any shipping damage? (Y/N) If so, where? Will this damage prevent unit start-up? (Y/N) Does the power supply agree with the unit? (Y/N) Has the ground wire been connected? (Y/N) -
Page 15: Operation
R-410A refrigerant systems operate at higher amount of refrigerant. If refrigerant recharging is pressures than standard R-22 systems. Do not use required, call Dometic for the proper amount of R-22 to service the equipment or components on refrigerant required for this system. -
Page 16: Normal Heating Or Cooling Cycle
Operation Universal Air Conditioning Unit 7 .3 .1 Power On and Basic Modes • Down button – Press and release to display the set point. Press and hold the Down button to decrease Press the Mode button to turn the system on. In three the set point. - Page 17 Universal Air Conditioning Unit Operation 7 .3 .3 Adjusting the Set Point 7 .3 .7 Dimming the Display To view the set point, press and release the Up or Down Press the Mode and Up buttons simultaneously and button. To adjust the set point, press the Up or Down repeatedly to select the brightness setting for the Q3 buttons to set the desired room temperature (press control.
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Page 18: Programmable Functions, Ranges, And Factory Defaults
Programmable Functions, Ranges, and Factory Defaults Universal Air Conditioning Unit 8 Programmable Functions, 8 .1 Quick Reference Table Ranges, and Factory Defaults Refer to the following table for the programmable functions, ranges, and factory defaults for the Universal This section provides a quick reference table for the Air Conditioning Unit. -
Page 19: Description Of Functions
Universal Air Conditioning Unit Programmable Functions, Ranges, and Factory Defaults Function Number Description Factory Default Required Settings Function Range 3 = 3 speeds Fan-Speed Divisions – 5 = 5 speeds - - = Aux Heat/Heat The Q3 control MUST Disabled Aux Heat/Heat be set to “h1”... - Page 20 5: Low Fan Speed average room temperature. Check with your dealer or call Dometic for more information. You can adjust the lowest fan speed to suit individual preferences. For instance, you may wish to decrease the 8: AC Line Voltage Calibration low fan speed setting to minimize fan noise.
- Page 21 Universal Air Conditioning Unit Programmable Functions, Ranges, and Factory Defaults 9: Temperature Calibration Programmable function 10 governs the pre-circulation cycle time and should not be changed. This feature calibrates the ambient sensor within a range of ±1%. The temperature sensor should be within one or 11: Dehumidification Time two degrees of the actual room temperature.
- Page 22 Programmable Functions, Ranges, and Factory Defaults Universal Air Conditioning Unit 15: Low-Pressure Switch Test 17: LED Segment Test Press the Mode button to test the display. All LED WARNING: EXPLOSION HAZARD . segments should display. Press the Fan button to exit this During this test, low- and high-pressure faults are test.
- Page 23 100 hours. Function values are between 1 minute intervals. You may adjust the conditioned space (100 hours) and 25 (2500 hours). Dometic recommends temperature at which the anti-icing routine is initiated. The range of adjustment is 65 °F–80 °F (18 °C–26 °C).
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Page 24: Programming The Q3 Control
Programming the Q3 Control Universal Air Conditioning Unit 32: Fan Speed Medium 5. Press the Fan button to save the new setting and return to program mode. Scroll to another function You can adjust the medium fan speed to suit individual number and continue programming, or press Fan preferences. -
Page 25: Troubleshooting
Before you call for service, review this list. It may save you time and expense. If you need service after trying these This list contains common occurrences that are not a procedures, call your nearest Dometic dealer. result of defective workmanship or materials. Problem... -
Page 26: Digital-Controls Troubleshooting
• Refer to “Digital-Controls Troubleshooting” on page 26. The fan is not running. • Check the capacitor, connections, and motor. • Call a qualified Dometic service technician. The control is in fan-only mode. Set the system for Cool Mode or for Aux Heat/Heat Mode. - Page 27 Adjust Programmable Voltage is improperly calibrated. Function 8 if necessary. Refer to “Programmable Functions, Ranges, and Factory Defaults” on page 18. Contact an authorized Dometic servicing dealer if the problem continues or for replacement parts.
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Page 28: Faults And Error Messages
Faults and Error Messages Universal Air Conditioning Unit 11 Faults and Error Messages If after eight attempted compressor starts, the low- pressure switch does not stay closed, the unit will go To protect the equipment, certain fault conditions into a sustained shutdown and the Q3 control alternates trigger a shutdown, and the system will not restart until flashing “LO”... -
Page 29: Fault Codes And Indicator Codes
Universal Air Conditioning Unit Faults and Error Messages 11 .4 Fault Codes and Indicator Codes Refer to the table if the Q3 control is displaying a fault code or an indicator code. Code Description Result Operating voltage remained below the acceptable time limit for three minutes LO / AC Shutdown or more (90 volts for a 100V system, 100 volts for a 115 V system). -
Page 30: Maintenance
Maintenance Universal Air Conditioning Unit 12 Maintenance 12 .2 Cleaning the Return-Air Filter Check the Return-Air Filter once a month (or more often if WARNING: ELECTRICAL SHOCK HAZARD . local conditions and usage patterns dictate) and replace Ensure the power to the unit is shut off before or clean as necessary. -
Page 31: Checking The Compressor Overload
The force of the water or air jet will bend the CONTACT: fin edges and increase air side pressure drop. DOMETIC CORPORATION Periodic cleaning with an environmentally sound coil CUSTOMER SUPPORT CENTER cleaner is essential to extend the life of the coils. Coil 1120 NORTH MAIN STREET cleaning should be part of the unit’s regularly scheduled... - Page 32 Mobile living made easy. dometic .com YOUR LOCAL YOUR LOCAL YOUR LOCAL DEALER SUPPORT SALES OFFICE dometic .com/dealer dometic .com/contact dometic .com/sales-offices...
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