Do you have a question about the QP-1800 and is the answer not in the manual?
Questions and answers
Steve Luna
April 7, 2025
My QP turns on but the screen only says 24V 120V 60Hz, is not able to charge anything.
1 comments:
Mr. Anderson
April 9, 2025
The QP-1800 may only display 24V 120V 60Hz and not charge anything due to one or more of the following reasons:
1. Weak or Dead Batteries: The inverter needs strong, fully charged batteries to operate. Weak or damaged batteries may not supply enough power.
2. Loose or Corroded Battery Connections: Poor connections can prevent the system from delivering adequate current.
3. Inadequate Battery Capacity: The battery must have sufficient Ampere-Hours (AH) to support the inverter load.
4. DC Input Voltage Out of Range: The inverter operates between 20 to 32 VDC, with peak performance between 24 to 30 VDC. If voltage is outside this range, the inverter may not function properly.
5. High Surge Loads: Some equipment with high startup currents may not start if the inverter-battery system cannot provide the required surge.
6. Improper DC Cable Sizing: Undersized cables can limit current flow, affecting performance.
Check battery condition, cable connections, voltage levels, and load compatibility to resolve the issue.
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Summary of Contents for Iris Technology Corporation QP-1800
Page 1
QuietPower 1800 (QP-1800) DC to AC Power Inverter Model QP-1800 / PN 287A107 (System) Owner’s Manual Revised 15 OCT 01 Iris Technology Corporation [CAGE 78535] 17175 Von Karman Avenue, Suite 104, Irvine, CA 92614-0904 www.iristechnology.org QuietPower 1800 Inverter Owner’s Manual...
Do not install the QuietPower Inverter in a zero-clearance compartment. Overheating may result. Do not use attachments not recommended or sold by Iris Technology. Doing so may result in a risk of fire, electric shock, or injury to persons.
Page 4
Department of the Navy Product Evaluation This equipment has been tested by SPAWAR (Department of the Navy) for MARCORSYSCOM and is recommended for use in wheeled military vehicles. Contact Iris Technology for details about obtaining a copy of this evaluation (Restricted Distribution, FOUO).
Customer Service Phone: (949)975-8410 Customer Service Fax: (949)975-8498 Customer Service Email: support@iristechnology.org Please record the following information for use if you need to contact Iris Technology for servicing of the unit. QuietPower Inverter Serial #: ___________________________ Place of purchase: ___________________________...
2.1.2 Control Panel The Control Panel provides ‘0/|’(Off/On) control and displays operating information so you can monitor the status of the Inverter and your batteries. This panel can be removed and re-attached in different orientations so the display information is directed at you in the most convenient fashion, for all recommended mounting configurations.
Mounting the QuietPower Inverter Before mounting the QuietPower Inverter, test the chosen location for adequate space around the unit to allow for connections and ventilation. Mounting hardware should be corrosion resistant and ¼” or 6 mm diameter screws. Your mounting system should be able to support three times the weight of the QuietPower Inverter, which weighs approximately 16 pounds (7.3Kg).
Figure 2. Control Panel Attachment. 3.4.2 DC Grounding The QuietPower Inverter has a lug on the rear panel labeled Chassis Ground. This lug is used to connect the chassis of the QuietPower Inverter to your DC ground as is required by regulations for some installations.
-100 -150 -200 Time (ms) Figure 3. QuietPower Inverter True Sine Wave Output. inverters. Some of these advantages are: • reduced interference in audio or electronic equipment, especially those that use less complex internal power supplies • significantly reduced in-rush current into capacitive loads and reduced stress on the output devices of the inverter, potentially lengthening equipment life •...
Continuous AC Output Current Rating QP-1800 The unit above will be able to operate all AC loads rated at or below these power ratings. Some high horsepower induction motors used in pumps and other motor-operated equipment require very high surge currents to start and the QuietPower Inverter battery combination may have difficulty starting these loads.
DC Input Over Voltage Alarm QP-1800 31.6 VDC The over-voltage protection and shutdown protects the inverter against excessive in put voltage, should the unit be connected to a higher voltage than it is designed for (up to 35 VDC - higher voltages may cause damage).
Ensure all loads are disconnected. Try to reset the unit by switching to ‘0’ and then to ‘|’. If unit still does not operate, Contact Iris Technology for service warranty replacement. Table 4. Troubleshooting Tips. Possible Cause Low input voltage shutdown Inverter switched to ‘0’...
3. Ship the unit to Iris Technology, freight prepaid: If you are returning the unit from outside the USA, please contact the place of purchase or the local Iris Technology dealer in your country.
This type of battery is often labeled as a marine, recreational vehicle, or golf cart battery. Iris Technology recommends you use one or more of these batteries separated from the starting battery of your vehicle or boat with a battery isolator.
(e.g. 5O Ah). Even if your battery is in excellent shape and fully charged you will likely experience poor surge power performance and unsatisfactory operating time with anything but a small AC load. Iris Technology recommends a minimum battery size of 200 Ah for moderate loads (< 1000 W) and greater than 400 Ah for heavy loads.
Temperature” illustrates the relationship between power output and ambient temperature. The rated power output of the QP-1800 inverter is 1800W up to 25°C ( 77°F). Operating the unit above this temperature will result in thermal shutdown or decreased performance. At input voltages less than 24V, the unit runs warmer which will cause thermal shutdowns at temperatures below these ambient temperature guidelines.
2000 1800 1600 1400 1200 1000 Figure 4. Output Power (W) Derating Curve. 10.2. Efficiency Curve The efficiency rating of the QuietPower inverter indicates what percentage of DC power is converted to usable AC power at given power output levels. The higher the rating, the less power is lost in the way of heat from the inverting process.
System Components QuietPower 1800 Inverter 1800 Watts (115 VAC, 60 Hz) NATO SLAVE Cable 2/0 AWG Flexible QuietPower 1800 Inverter Owner’s Manual PN 287A107 QuietPower 1800 Inverter System Includes: PN 287A101 PN 287A106 Rev 15 OCT 01 Page...
Page 19
QP-1800 QuietPower Inverter System Product Iris Part Number(s) Continuous Power Surge Power Peak Efficiency No Load Current Draw Output Frequency Output Waveform Input Voltage Range Output Voltage Input DC Connection Output AC Connection Supplied Cabling Weight Length x Width x Height...
We have heard questions about a “short” operating runtime with this equipment. In field tests at Camp Pendleton, we measured and verified conversion efficiency of the QP-1800 to be approximately 90%, well within specifications. The QuietPower 1800 equipment, by its very design, can demand a large current drain from the vehicle electrical system (75 to 90 Amperes depending upon battery voltage and load).
Page 21
Operation with Power Strips We see an occasional compatibility issue with power strips having integral surge suppressor components (MOVs). The QuietPower 1800 provides surge suppression at the output and no additional suppressors are typically needed. In fact, the use of additional surge suppressors is not recommended. We have evaluated alternate power strips with this equipment and have not seen this issue recur.
Energy Flow The only energy source put into your military vehicle enters in the form of diesel fuel Some of this energy is converted by the engine to mechanical energy for motion Some of this mechanical energy is converted by the alternator to electrical energy Energy Storage QuietPower 1800 Inverter Owner’s Manual...
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Do you have a question about the QP-1800 and is the answer not in the manual?
Questions and answers
My QP turns on but the screen only says 24V 120V 60Hz, is not able to charge anything.
The QP-1800 may only display 24V 120V 60Hz and not charge anything due to one or more of the following reasons:
1. Weak or Dead Batteries: The inverter needs strong, fully charged batteries to operate. Weak or damaged batteries may not supply enough power.
2. Loose or Corroded Battery Connections: Poor connections can prevent the system from delivering adequate current.
3. Inadequate Battery Capacity: The battery must have sufficient Ampere-Hours (AH) to support the inverter load.
4. DC Input Voltage Out of Range: The inverter operates between 20 to 32 VDC, with peak performance between 24 to 30 VDC. If voltage is outside this range, the inverter may not function properly.
5. High Surge Loads: Some equipment with high startup currents may not start if the inverter-battery system cannot provide the required surge.
6. Improper DC Cable Sizing: Undersized cables can limit current flow, affecting performance.
Check battery condition, cable connections, voltage levels, and load compatibility to resolve the issue.
This answer is automatically generated