IRIS Power Supply QP 1800 User Manual

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  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 1  
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1
Important Safety Instructions  
Item Identification  
The QuietPower Inverter System, PN 287A107, consists of four (4) items:  
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QuietPower Inverter QP-1800 (PN 287A101) [Qty 1]  
QuietPower Inverter NATO SLAVE Cable (PN 287A106) [Qty 1]  
QuietPower Inverter Vibration Isolators (Neoprene, Cylindrical) with mounting hardware [Qty 4]  
QuietPower Inverter Operator’s Manual [Qty 1]  
General Safety Precautions  
1.  
Save these instructions. This Owner's Manual contains important safety and operating  
information for the QuietPower Inverter.  
2.  
The QuietPower Inverter has a Ground Fault Circuit Interrupter (GFCI) and a Circuit Breaker for  
your safety. These features are critical to the safe operation of this system and must not be disabled.  
3.  
Do not expose the QuietPower Inverter to rain, snow, spray, bilge or dust. To reduce risk of fire  
hazard, do not cover or obstruct the ventilation openings. Do not install the QuietPower Inverter in a  
zero-clearance compartment. Overheating may result.  
4.  
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.  
5.  
The QuietPower Inverter (PN 287A101) is designed to connect to a military vehicle 24 VDC  
power system through the supplied NATO SLAVE Cable (PN 287A106).  
6.  
To avoid a risk of fire and electric shock, make sure that existing wiring is in good electrical  
condition. Do not operate the QuietPower Inverter with damaged wiring.  
7.  
Do not operate the QuietPower Inverter if it has received a sharp blow, been dropped, or  
otherwise damaged in any way. If the QuietPower Inverter has been damaged, please refer to Section  
8.0 of this manual: Warranty Service.  
8.  
Do not disassemble the QuietPower Inverter; see the Service section of this manual for  
instructions on obtaining service for the QuietPower Inverter. Attempting to service the unit yourself may  
result in a risk of electrical shock or fire.  
9.  
To reduce risk of electrical shock, disconnect the DC power from the QuietPower Inverter before  
attempting any maintenance or cleaning or working on any equipment and circuits connected to the  
QuietPower Inverter. Turning off controls will not reduce this risk.  
Explosive Gas Precautions  
1.  
This equipment contains components which can produce arcs or sparks. To prevent fire or  
explosion do not install in compartments containing batteries or flammable materials or in locations which  
require ignition protected equipment. This includes any space containing gasoline-powered machinery,  
fuel tanks, or joints, fittings, or other connection between components of the fuel system.  
2.  
Working in the vicinity of a lead-acid battery is dangerous. Batteries generate explosive gases  
during normal battery operation.  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 3  
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3.  
To reduce the risk of battery explosion, follow these instructions and those published by the  
battery manufacturer and the manufacturer of the equipment in which the battery is installed.  
Precautions When Working With Batteries  
1.  
Someone should be within range of your voice or close enough to come to your aid when you  
work near a lead-acid battery.  
2.  
3.  
Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing, or eyes.  
Wear complete eye protection and clothing protection. Avoid touching eyes while working near  
batteries.  
4.  
Clean battery terminals before making connections. Wear eye protection to keep corrosion from  
coming in contact with eyes.  
5.  
If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters  
eye, immediately flood eye with running cold water for at least 20 minutes and get medical attention  
immediately.  
6.  
NEVER smoke or allow a spark or flame in vicinity of battery or engine.  
7.  
Do not drop a metal tool on the battery. The resulting spark or short-circuit on the battery or other  
electrical part may cause an explosion.  
8. Remove personal metal items such as rings, bracelets, necklaces, and watches when working  
with a lead-acid battery. A lead-acid battery produces a short-circuit current high enough to weld a ring or  
the like to metal, causing a severe burn.  
FCC INFORMATION  
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,  
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against  
harmful interference in a residential installation. This equipment generates, uses, and can radiate radio  
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful  
interference to radio communications. However, there is no guarantee that the interference will not occur  
in a particular installation. If this equipment does cause harmful interference to radio or television  
reception, which can be determined by turning the equipment off and on, the user is encouraged to try to  
correct the interference by one or more of the following measures:  
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Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and receiver.  
Connect the equipment into an outlet on a circuit different from that to which the receiver is  
connected.  
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Consult the dealer or an experienced radio/TV technician for help.  
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).  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 4  
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2
Introduction  
Thank you for your purchase of this QuietPower Inverter. As a high quality, true sine wave output  
inverter, you can expect the QuietPower to deliver exceptional performance and give you years of  
dependable operation. The true sine wave AC output from the QuietPower Inverter ensures all AC loads  
operating from the unit perform efficiently and correctly. Since these loads were designed to operate from  
true sine wave voltage, you can expect these loads to operate the same as if operating from grid/utility  
supplied power. In some cases, the true sine wave output from the QuietPower Inverter is even superior  
to the power supplied by your utility company.  
To get the most out of your QuietPower Inverter, please carefully read and follow the instructions in this  
guide. Pay special attention to the Important Safety Instructions in this guide and to the CAUTION and  
WARNING statements found throughout the guide and on the product. Please retain all packaging.  
Should you have any questions before, during, or after installation, please call Iris Technology's Customer  
Service Department for help.  
Customer Service Toll Free:  
Customer Service Phone:  
Customer Service Fax:  
(866)240-9540  
(949)975-8410  
(949)975-8498  
Customer Service Email:  
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:  
___________________________  
___________________________  
___________________________  
___________________________  
Date of purchase:  
Contract reference  
2.1  
QuietPower Inverter Key Features  
The QuietPower Inverter utilizes advanced high frequency switching technology in the power conversion  
process. The circuits are similar to those used in power supplies for computers and other electronic  
equipment. This technology offers several benefits:  
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Light weight: for easy installation  
Totally silent: for quiet operation  
High surge capability: for ‘hard-to-start” AC loads  
See Section 10 Specifications, for complete product specifications.  
2.1.1. Inverter Function  
When connected properly and the power switch is turned to the ‘|’ position, the QuietPower Inverter  
draws power from a battery and delivers a true sine wave AC output voltage that is similar to the voltage  
supplied by your local utility. As long as the battery voltage is within the operating range of the unit, the  
QuietPower will continue to deliver AC power to the loads connected. High and low battery shutdowns  
will engage if the battery voltage falls out of the specified range of operation (20-32 VDC).  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 5  
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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.  
3
Installation  
This section contains instructions for installing the QuietPower Inverter. After securing the unit and  
making wiring connections, do not turn the unit on.  
Proceed to the next section of the manual which provides operating instructions.  
3.1  
Requirements for Installation  
What You Need to Install the QuietPower Inverter  
You need the following tools and hardware to properly install the QuietPower Inverter:  
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Wrench for DC terminals (½” or 13 mm)  
Wrench for Vibration Isolators (optional use)  
DC cables (supplied as PN 287A106)  
3.2  
Locating the QuietPower Inverter  
The QuietPower Inverter utilizes complex electronic circuits and although design precautions have been  
made for protection of these circuits, they can be susceptible to damage from use in extreme  
environments. The QuietPower Inverter should only be installed in a location that meets the following  
requirements:  
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Dry: do not allow water or other fluids to drip or splash on the QuietPower Inverter. Do not mount the  
QuietPower Inverter in an area subject to splashing or dripping water or bilge.  
Cool: normal ambient air temperature should be between 0°C (32°F) and 25°C (77°F) - the cooler the  
better within this range. Refer to the operating temperature information in the specifications section  
of this manual.  
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Ventilated: allow at least 5 inches (13 cm) of clearance all around the unit. Ensure that the ventilation  
openings on the unit are not obstructed. If mounting in a compartment, ventilate with louvers or cut-  
outs.  
Safe: do not install the QuietPower Inverter in the same compartment as batteries or in any  
compartment capable of storing flammable liquids such as gasoline. Do not install the QuietPower  
Inverter in an engine compartment or other location where ignition protected equipment is required.  
Dust-free: do not install the QuietPower Inverter in a dusty environment where either dust, wood  
particles or other filings/shavings are present. These can be pulled into the unit when the cooling fan  
is operating.  
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Close to AC junction box: avoid the use of extended wire lengths if possible.  
Close to battery/batteries: Avoid excessive cable lengths but do not install the QuietPower Inverter in  
the same compartment as batteries. Use the recommended wire lengths and sizes (see section  
3.4.4). Also do not mount the QuietPower Inverter where it will be exposed to the gases produced by  
the battery. These gases are very corrosive and prolonged exposure will damage the QuietPower  
Inverter.  
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Protected from battery acid: Never allow battery acid to drip on the QuietPower Inverter or its wiring  
when reading specific gravity or filling the battery.  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 6  
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3.3  
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). The more clearance for ventilation  
around the unit, the better the performance. At a minimum, have 5” of free space on all sides of the  
inverter. For your convenience, four (4) Neoprene Cylindrical Sandwich Mount Vibration Isolators and  
attachment hardware are provided for shock mounting.  
To mount the QuietPower Inverter  
Mount the QuietPower Inverter on either a horizontal or vertical surface (such as a bulkhead) using the  
mounting holes provided. For secure, permanent mounting, use all eight mounting holes. Optionally, use  
four shock mounts provided. To meet regulatory requirements, the QuietPower Inverter must be mounted  
in one of the three orientations shown in Figure 1 below.  
Remove and re-attach the front panel depending on  
the orientation of the base unit itself. For example, if  
the unit is mounted on a vertical surface, you may  
want to remove the panel and attach it so it is again  
readable horizontally. This can be done as depicted  
in Figure 2, below, by removing the 4 screws, taking  
the panel out of the housing, rotating the panel and  
reattaching the panel to the base unit. Be sure to re-  
install all four screws.  
Figure 1. Approved Orientations for  
Inverter Mounting.  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 7  
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3.4  
Wiring the QuietPower Inverter  
Once your DC connections and ground wiring connection  
are complete, the unit is ready to deliver AC power via the  
front outlet.  
3.4.1 Making DC Wiring Connections  
The cables supplied with the QuietPower Inverter System  
are approximately 12 feet long and are fabricated from 2/0  
AWG multi-strand flexible cables. They are terminated with  
a NATO SLAVE Plug at one end and two (2) lug terminals  
which connect to the Inverter.  
Before making connections, route the positive and negative  
battery cables directly to the DC connection terminals on  
the QuietPower Inverter.  
Slide the plastic terminal  
connector covers (boots) over the positive and negative  
cables (the red boot slides on the positive cable and the  
black boot slides on the negative cable). Do not route the  
cables through a distribution panel, battery isolator, or other  
device that will add additional voltage drops.  
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.  
4
QuietPower Inverter Operation  
This section details how the unit functions as an inverter, provides information on the control panel, and  
describes operating limits for inverter operation.  
4.1. Principles of Operation  
The QuietPower Inverter converts power from the batteries in two stages. The first stage is a DC-to-DC  
converter, used to raise the low voltage DC input to high voltage DC. The second stage is the actual  
inverter stage, taking the high voltage DC and converting it to a precise, true sine wave AC output.  
The DC-to-DC converter stage uses modern high frequency power conversion technology that eliminates  
the bulky, low frequency (50/60 Hz) based transformers found in inverters using older technology. The  
inverter stage uses advanced power semiconductors that provide excellent overload capabilities.  
4.2  
Output Waveform  
The AC output waveform of the QuietPower Inverter is a “true sine wave” with typically 1% Total  
Harmonic Distortion (THD). Figure 3 illustrates the output waveform from the QuietPower Inverter. This  
waveform is nearly identical to your utility-supplied power and in some cases where utility power is poor,  
the QuietPower Inverter delivers cleaner, more precise AC power.  
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200  
150  
100  
50  
There are many advantages of true sine  
wave over other wave forms delivered by  
other inverters:  
169.7 V Peak  
AC powered equipment is  
designed to operate with true sine wave.  
Many loads will perform better when  
connected to the QuietPower Inverter.  
0
-50  
motor loads start easier  
reduced stress on  
-100  
-150  
-200  
surge  
protection circuitry within the equipment  
means potentially longer equipment life  
0
5
10  
15  
20  
25  
30  
35  
40  
Many advantages of true sine wave are  
also due to the absence of the sharp-  
rising edges of waveforms prevalent in  
either modified sine wave or square wave  
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  
motor loads generally operate cooler and quieter without the extra harmonic distortion generated  
by a modified sine wave  
4.3  
Control Panel  
Once the QuietPower Inverter is properly installed and connected to batteries, it is ready to begin  
delivering AC power to your loads. The control panel is the interface between you and the inverter. This  
section describes the features of this panel and is followed by other sections that contain inverter  
operating information.  
1.  
INVERTER 0/|: this switch turns the QuietPower Inverter ON (‘|’). It is also used to enable or  
disable POWERSAVE mode during the power-up sequence.  
2.  
LIQUID CRYSTAL DISPLAY (LCD)  
DISPLAY: displays input current from the battery and battery voltage numerically. A multi-segment bar  
graph displays actual output power in watts from the inverter when a load is being operated  
3.  
MULTI-POSITION MOUNT: the control panel is designed so it can be removed and re-attached  
to the chassis in 90 degree increments depending on the mounting orientation of the inverter itself. The  
panel can also be removed entirely from the unit and mounted remotely, with the purchase of the optional  
QuietPower Interface Panel.  
4.  
FAULT CONDITION DISPLAY: should a fault occur, the error will immediately be displayed. An  
audible alarm sounds and the back-lighting of the display will flash to draw attention to the fault condition  
(see Section 6.1)  
To operate the QuietPower Inverter:  
Turn the unit ON by moving the rocker switch on the control panel to ‘|’ position. The following  
information will be displayed (upon each power-up), identifying the type and configuration of your  
QuietPower:  
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Rev 15 OCT 01 Page 9  
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QuietPower model number (1800 watt)  
Input Voltage, Output Voltage and Frequency configuration  
POWERSAVE mode OFF (factory set default)  
Following the display of this information, the control panel then defaults to the standard display  
information of input voltage, input current and output power. When a load is connected, the output power  
(watts) is displayed in bar-graph form.  
Once the standard display screen is shown, the QuietPower Inverter is ready to deliver AC power to your  
loads. You can now plug in a load to the front outlet of the unit. The loads should operate from the  
inverter as they would from utility power. Section 4.5 explains the operating limits for the QuietPower  
Inverter.  
4.4  
QuietPower POWERSAVE Mode  
Your QuietPower Inverter has a function mode called POWERSAVE. This “sleep” mode shuts off much  
of the power control circuitry of the QuietPower Inverter as well as the display back-lighting, reducing the  
standby current draw considerably. With this mode enabled, the unit draws approximately 1.5 watts while  
powered up but with no load on the inverter. The QuietPower Inverter detects the presence of a load by  
sending out pulses approximately once every 2.5 seconds. Full output power is available with the  
detection of a load. The unit will remain in POWERSAVE mode if the load it detects is less than 10W for  
the QuietPower 1000 and less than 20W for the QuietPower 1800. This is a factory set search mode  
setting and cannot be changed.  
You would want to enable POWERSAVE mode if the inverter is only being used periodically to power  
loads. This allows the inverter to draw less power from the batteries during non-use periods. If the  
inverter is being used frequently and your batteries are being recharged during inverter use (e.g. vehicle  
alternator), or soon after inverter use, you can leave POWERSAVE disabled.  
Your QuietPower is factory default set to POWERSAVE OFF. To enable the POWERSAVE mode, follow  
these steps:  
I)  
Turn the Control Panel switch to ‘0’ position  
2)  
Switch the unit back to ‘|’ position. You will see the power-up information being displayed as  
described previously (model number and voltage/frequency configuration)  
3) When the Control Panel displays “POWERSAVE OFF” turn the switch to ‘0’ position, wait for  
approximately 3 seconds, and then turn the switch back to ‘|’ position again. “POWERSAVE ON” will  
now be displayed during the start-up sequence and when the normal state display appears, a small  
pointer will be visible, indicating POWERSAVE mode is enabled. Follow the same procedure for  
disabling POWERSAVE mode.  
4.5  
Inverter Operating Limits and Protection Features  
Power Output: The QuietPower 1800 delivers 1800 watts continuously. The following table displays the  
continuous and peak current ratings as well as surge rating:  
Table 1. Operating Limitations.  
Model  
Continuous AC Output  
Current Rating  
15A  
Peak AC Output Current  
Surge Rating (max. watts delivered  
for 5 seconds)  
Rating  
45A  
QP-1800  
2900W  
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.  
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If you have problems with certain loads, ensure that battery connections are solid, your DC cables are  
appropriately sized, and that the battery is of sufficient capacity and fully charged.  
Input Voltage: The QuietPower Inverter operates from an input voltage ranging from 20 to 32 VDC.  
Peak performance for these inverters occurs when DC input voltage is in the range of 24 volts to 30 volts  
for 24V models. The QuietPower Inverter will indicate high and low DC voltage conditions as follows:  
Table 2. System Trip Voltages.  
Model  
DC Input  
DC Input  
DC Input  
DC Input  
Over Voltage Over Voltage Under Voltage Under Voltage  
Alarm  
Shut-down  
32.0 VDC  
Alarm  
Shut-down  
20.0 VDC  
QP-1800  
31.6 VDC  
21.0 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). Low input voltage shutdown protects your battery from being over-discharged. The  
QuietPower Inverter requires a manual reset to re-start after shutdown from either high or low input  
voltage. Turn the power switch to ‘0’ and then back to ‘|’ to re-start the unit.  
Output Overload Protection: A short circuit may be applied to the output continuously without damage to  
any internal components. The QuietPower Inverter will shutdown in less than five seconds when the  
output falls 10% below the nominal voltage as a result of current limiting.  
Input Reverse Polarity Protection: the internal circuitry of the QuietPower Inverter is protected by an  
internal, 32V, fast-blow fuse. This fuse is only replaceable by qualified service personnel. In many  
reverse polarity conditions, this fuse will protect internal circuits, however, certain high voltage/current  
situations may cause internal damage.  
5
Testing  
The following simple test procedure should ensure that the QuietPower Inverter is connected and  
installed properly.  
To test the QuietPower Inverter:  
1. Double check all wiring terminals on the inverter to observe correct polarity and secure connections.  
2. Turn rocker switch to ‘I’ position.  
3. Observe the power-up sequence on the display. The normal-state inverter display of input current  
and input voltage should come up.  
4. Plug a test load (e.g. a light bulb) into the outlet of the QuietPower Inverter. The load should function  
normally. Observe the output power bar graph - it should increase with load demand,  
5. Repeat Test 4 with the QuietPower in “Powersave” mode.  
6. The QuietPower Inverter is now ready for operation  
QuietPower 1800 Inverter Owner’s Manual  
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6
Troubleshooting Guide  
This section describes potential installation and configuration problems and solutions, including fault  
conditions and indicators. More information is found in the Technical Addendum and on our web site.  
6.1  
Fault Conditions and Indicators  
The following fault conditions are displayed on the control panel along with an alarm sound and blinking  
LCD back-light.  
Table 3. Fault Indicators.  
Control Panel Indication Fault Condition  
Solution  
HIGH BATT SHUTDOWN Battery voltage too high  
Check for fault with battery charging  
system. Manually reset inverter by  
turning switch to ‘0’ then to ‘|’ again.  
LOW BATT SHUTDOWN  
Battery voltage too low  
Charge battery. Manually reset  
inverter by turning switch to ‘0’ then  
to ‘|’ again.  
OVERLOAD SHUTDOWN Battery current too high, probable AC Reduce load on the inverter.  
overload  
OVERTEMP SHUTDOWN System over-temperature  
Improve ventilation and cooling  
and/or reduce load on the inverter.  
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.  
SYSTEM SHUTDOWN  
PS_FAULT SHUTDOWN  
DC-DC SHUTDOWN  
Overload or system hardware fault  
The table below provides some troubleshooting tips:  
Table 4. Troubleshooting Tips.  
Problem and symptoms  
No output voltage and control  
panel reading 20.4 VDC or lower  
No output voltage, no voltage  
indication.  
Possible Cause  
Low input voltage shutdown  
Solution  
Recharge battery, check  
connections and cable  
Turn Inverter power switch to ‘I’  
Check wiring to inverter.  
Inverter switched to ‘0’  
No battery power to inverter  
Reverse DC polarity connection -  
internal fuse open  
No output voltage and control  
panel reading 32.0 VDC or higher  
High input voltage shutdown  
Make sure that the inverter is  
connected to correct battery  
voltage, check regulation of  
charging system.  
Low battery warning on all the  
time, voltage indicator below 22.0 condition  
VDC  
Poor DC wiring, poor battery  
Use proper cable and make solid  
connections.  
Charge battery or use new  
battery.  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 12  
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7
Warranty  
Iris Technology manufactures its products from parts and components that are new or equivalent to new  
in accordance with industry-standard practices. Iris Technology warrants the QuietPower Inverter to be  
free from defects in workmanship or materials for 24 months from the date of purchase. Proof of  
purchase is required for warranty service. During the warranty period, Iris Technology will, at its option,  
repair or replace the defective product free of charge. This warranty will be considered void if the unit has  
suffered any physical damage or alteration, either internally or externally, and does not cover damage  
arising from improper use or from use in an unsuitable environment. This warranty will be considered  
void where the product has been misused, neglected, improperly installed, or repaired or modified by  
anyone other than Iris Technology , without prior authorization by Iris Technology.  
Repair or replacement are your sole remedies and Iris Technology shall not be liable for damages,  
whether direct, incidental, special, or consequential, even though caused by negligence or fault.  
Iris Technology owns all parts removed from repaired products. Iris Technology uses new and  
reconditioned parts made by various manufacturers in performing warranty repairs and building  
replacement products. If Iris Technology repairs or replaces a product, its warranty term is 90 days or the  
balance of the original warranty, whichever is longer.  
This is Iris Technology’s only warranty, and the Company makes no warranties, express or implied,  
including warranties of merchantability and fitness for a particular purpose.  
8
Warranty Service  
If your QuietPower Inverter requires service, please return it Iris Technology directly:  
Phone:  
Toll Free  
Fax:  
(949)975-8410  
(866)240-9540  
(949)975-8435  
Email  
Iris Technology Corporation  
17175 Von Karman Avenue, Suite 104  
Irvine, CA 92614-0904, USA  
You must obtain a Return Authorization Number from Iris Technology before returning the QuietPower  
Inverter directly to Iris Technology. Do not return the QuietPower Inverter to Iris Technology without first  
obtaining a Return Authorization Number. When you contact Iris Technology to obtain service, be  
prepared to supply the serial number of your QuietPower Inverter.  
If you are returning the unit from the USA, follow this procedure:  
1. Obtain a Return Authorization Number from Iris Technology.  
2. Package the unit safely, preferably using the original box and packing materials. Include the Return  
Authorization Number, a return address where the repaired unit can be shipped, a contact telephone  
number, and a brief description of the problem.  
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.  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 13  
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9
Battery Information  
Battery Type  
9.1  
This appendix explains some of the differences between the different lead-acid batteries to help you  
choose a battery which best suits your needs.  
The lead-acid battery which is probably most common is the starting battery in your automobile. An  
automotive starting battery is designed to deliver a large amount of current for a short period of time (so it  
can start your engine). Only a small portion of the battery’s capacity is used when starting the engine and  
it is quickly recharged by the running engine. It is not designed for repeated charge-discharge cycles  
where the battery is almost completely discharged and then recharged. Starting batteries used in this  
kind of deep discharge service will wear out rapidly.  
Your QuietPower Inverter is designed to be used with DEEP CYCLE lead acid batteries. These batteries  
are designed for deep discharge service where they will be repeatedly charged and discharged. 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.  
The many different types of deep cycle lead acid batteries can be grouped into four categories: flooded  
(or wet), sealed flooded (“maintenance free”), recombinant flooded (often “starved electrolyte”), and gel  
batteries. The table that follows summarizes these battery types, identifying features, advantages and  
disadvantages.  
Note – for the following list:  
SUPERIOR™, PACER™ are registered trademarks of TROJAN BATTERY COMPANY  
SEAVOLT™, SEAGEL™ are registered trademarks of WEST MARINE PRODUCTS  
VOYAGER™ is a registered trademark of DELCO-REMY.  
GENESIS™ is a registered trademark of GATES ENERGY PRODUCTS (HAWKER ENERGY)  
EVOLYTE™, SUNLYTE™, STOWAWAY™, ACTIONPAC™ are registered trademarks of GNB  
INDUSTRIAL BATTERY COMPANY  
PREVAILER™ is a registered trademark of SONNENSCHEIN  
DYNASTY™ is a registered trademark of JOHNSON CONTROLS, INC. BATTERY DIVISION  
FLOODED BATTERIES:  
TROJAN:  
Golf Cart, SUPERIOR™, PACER™  
WEST MARINE:  
MOTOMASTER:  
SEAVOLT™  
Nautilus  
IDENTIFYING FEATURES:  
Vents which can be removed to fill the battery with water. Low  
price and higher maintenance.  
ADVANTAGES:  
More resistant to over-charging since they can be filled with  
water. Cheaper than other batteries.  
Must be filled with distilled water and usually require  
equalization. Maintenance required.  
DISADVANTAGES:  
SEALED FLOODED BATTERIES:  
DELCO:  
VOYAGER™  
IDENTIFYING FEATURES:  
Vents which look like they are removable but are not. Sold as  
“Maintenance Free” at attractive prices.  
Less maintenance required than Flooded. No need to fill with  
water. Less expensive.  
ADVANTAGES:  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 14  
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DISADVANTAGES:  
Less resistant to over-charging because they consume water but  
cannot be refilled.  
RECOMBINANT FLOODED (SEALED) BATTERIES:  
HAWKER ENERGY:  
OPTIMA:  
GENESIS™  
Yellow Top  
GNB INDUSTRIAL:  
IDENTIFYING FEATURES:  
EVOLYTE™  
Vents are often concealed. Sold using the following phrases:  
Recombinant, Valve Regulated, Maintenance Free, Starved  
Electrolyte.  
ADVANTAGES:  
DISADVANTAGES:  
Require no maintenance. Non-spillable.  
Can be damaged by equalization. Generally more expensive.  
GEL SEALED BATTERIES:  
SONNENSCHEIN:  
WEST MARINE:  
PREVAILER™  
SEAGEL™  
IDENTIFYING FEATURES:  
ADVANTAGES:  
Sold as either “Gel” or “Gelled Electrolyte” batteries.  
Require no maintenance. Often can be used on their side. Non-  
spillable. Low self-discharge. Less damage from being left  
discharged.  
DISADVANTAGES:  
Damaged by equalization. Generally more expensive.  
9.2. Battery Size  
Just as important as the type of battery selected for use with your QuietPower Inverter is the subject of  
battery size or capacity. Unfortunately, there are a number of different standards for rating battery energy  
storage capacity. Automotive starting batteries are normally rated by cranking amps. This is not a  
relevant rating for continuous use. Deep cycle batteries are rated either by reserve capacity in minutes or  
by amp-hours. Battery reserve capacity is a measure of how long a battery can deliver a certain amount  
of current - usually 25 amps. For example, a battery with a reserve capacity of 180 minutes can deliver  
25 amps for 180 minutes before it is completely discharged. Amp-hour capacity is a measure of how  
many amps a battery can deliver for a specified length of time - usually 20 hours. For example, a typical  
marine or RV battery rated for 100 amp-hours can deliver 5 amps for 20 hours. (5 amps * 20 hours = 100  
amp-hours).  
The batteries are a very important part of your system, so we recommend you purchase as much battery  
capacity as possible. A large battery will extend running time and ensure your QuietPower Inverter  
delivers full rated surge.  
You can expect performance from the inverter to suffer with the use of a small, low amp-hour rated  
battery (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.  
To determine how large a battery or battery bank you require for equipment running from the inverter,  
simply add together the power requirements for all electrical devices that you will be running multiplied by  
their approximate running times in hours between battery recharges. Each device will be rated in either  
watts, volts and amps, or VA. For this calculation, all three of these ratings are equivalent (i.e. volts *  
amps = watts = VA). The following example, based on battery recharging every three days, illustrates the  
calculation:  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Table 5. Sample Operating Time Calculation.  
Load  
Power  
Consumption  
Operating time (cumulative  
usage between recharges)  
3 hours (1 hour per day)  
1 hour (20 min per day)  
Watt-hours (power  
consumption * operating time)  
TV & VCR  
115 watts  
750 watts  
800 watts  
345  
750  
400  
Coffee Maker  
Microwave Oven  
TOTAL  
0.5 hour(10 min per day)  
1495  
Convert the watt-hours to amp-hours by dividing total watt-hours by 10: 30°C (86°F)  
1495 watt hours / 10 = 149.5 amp-hours  
A 150 amp-hour battery is required to supply enough power for the above loads, and become completely  
discharged. Ideally, you normally want to discharge your battery to only 50% capacity, so for the above  
loads, you would require 300 amp-hours of battery capacity.  
When sizing your battery, be generous. More capacity is better since you will have more reserve  
capacity, and your battery won’t be discharged as deeply. Battery life is directly dependent on how  
deeply the battery is discharged. The deeper the discharge, the shorter the battery life.  
As your power requirements increase, to obtain sufficient battery capacity, you may need to use more  
than one battery. Two identical batteries can be connected positive to positive and negative to negative  
in a parallel system that doubles the capacity and maintains the voltage of a single battery. It is not  
recommended to connect batteries from different manufacturers or with different amp-hour ratings or with  
different battery electrolytes in parallel. Decreased battery life may result.  
10.  
Performance Graphs and Specifications  
10.1. Power Derating Curve  
As with all inverters, the amount of continuous power that the QuietPower Inverters can deliver without  
overheating is limited by ambient (surrounding air) temperature. The nominal temperature for the power  
ratings specified for the QuietPower Inverters is 25°C (77°F). They will operate and deliver their  
continuous power ratings at higher temperatures, but the extent to which they can do this is limited by the  
ambient temperature as well as the input voltage from battery. The following “Power Derating Curve vs.  
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.  
Operating the unit in conditions outside the power and temperature limits (“above” and “to-the-right” of the  
derating curves) will result in thermal shutdown and/or significantly decreased performance. In addition,  
operation in this range is outside of the ratings covered by the product’s regulatory approvals.  
These curves are published for information purposes only to let you know what may happen while  
operating in high ambient temperature conditions. Under normal battery voltage conditions and non-  
extreme temperatures, inverter operation will be within the derating curve.  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Output Power (W)  
2000  
1800  
1600  
1400  
1200  
1000  
800  
600  
400  
200  
0
0
10  
20  
30  
40  
50  
60  
Ambient Temperature (C)  
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. QuietPower Inverters have an extremely flat efficiency curve over much  
of their operating range so less battery power is wasted, whether operating at low power levels or higher  
power levels.  
Efficiency (%) and Heat Dissipation (W)  
90  
89  
88  
87  
86  
85  
84  
83  
82  
81  
80  
300  
250  
200  
150  
100  
50  
0
0
200  
400  
600  
800  
1000  
1200  
1400  
1600  
1800  
Output Power (W)  
Figure 5. Efficiency (%) and Heat Dissipation (W).  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11  
System Components  
PN 287A107  
QuietPower 1800 Inverter System  
Includes:  
PN 287A101  
QuietPower 1800 Inverter  
1800 Watts (115 VAC, 60 Hz)  
PN 287A106  
NATO SLAVE Cable  
2/0 AWG Flexible  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 18  
Download from Www.Somanuals.com. All Manuals Search And Download.  
QP-1800  
QuietPower  
Inverter System  
Product  
QP-1800 System  
System 287.A107  
Inverter 287.A101  
Cabling 287.A106  
Iris Part Number(s)  
Continuous Power  
Surge Power  
1800 W  
2900 W  
90 %  
Peak Efficiency  
No Load Current Draw  
< 0.92 A  
60 Hz M 0.05 %  
crystal controlled  
Output Frequency  
Output Waveform  
True Sine Wave  
< 3 % THD  
Input Voltage Range  
Output Voltage  
20 - 32 VDC  
120 VAC RMS -10 / +4 %  
Two 5/16" Posts  
for Ring Lugs  
Input DC Connection  
Output AC Connection  
Supplied Cabling  
Dual Receptacles with GFCI  
2/0 AWG Flexible  
with NATO SLAVE Plug  
Inverter 16.5 lbs (7500 g)  
Cabling 18.0 lbs (8200 g)  
Weight  
15.4 x 11.0 x 4.5 in  
(390 x 280 x 115 mm)  
Length x Width x Height  
Operating Temperature  
0 / +60 LC  
(+32 / +140 LF)  
-30 / +70 LC  
(-22 / +158 LF)  
Storage Temperature  
Warranty  
12 Months  
17175 Von Karman Avenue  
Suite 104, Irvine, CA 92614-0904  
949.975.8410 tel / 949.975.8498 fax  
CAGE 78535  
Iris Technology Corporation  
Revised 20 SEP 01  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.  
Appendix A. Technical Addendum.  
Equipment Runtime  
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). A  
high conversion efficiency means that it is not the cause for wasted energy.  
We then inspected the HMMWV vehicle batteries and observed loose and corroded battery connections,  
measured batteries to be “weak” or “dead”, and have seen low outputs from vehicle alternators. It is not  
adequate to measure the voltage across the vehicle batteries in an unloaded condition. Lead acid  
batteries recover to relatively high voltages even if they are weak or damaged. It is important to measure  
the holding voltage across these batteries while loaded and typical battery testers do that.  
To operate effectively, all connections within the vehicle electrical system must be clean and very secure.  
The battery health is critical, too. In speaking with Exide, the manufacturer of the 6TL and 6TMF  
batteries, the rated value is 100 Ampere-Hours (AH). That is to say that a 20 Ampere load should run for  
5 hours (20 A x 5 H = 100 AH). This is a temperature dependent parameter, too, and Runtime v Load  
data is provided below for varying temperatures.  
Exide 6TL & 6TMF Runtime to Cutoff @ 10 VDC  
100  
10  
+80F  
+32F  
0F  
-25F  
-40F  
-65F  
1
0.1  
1
10  
100  
1000  
Amps  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 20  
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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. A separate, but  
related issue, deals with the Ground Fault Circuit Interrupter (GFCI) discussed next.  
Operation with Downstream EMC Components  
The QuietPower 1800 is delivered with a Ground Fault Circuit Interrupter (GFCI) type duplex outlet.  
Occasionally, when operated with certain types of electronics, the GFCI would trip for no apparent  
reason. The following discussion provided a basic understanding of the operational issues.  
Ground Fault Circuit Interrupters (GFCIs) are important for minimizing shock hazards in outdoor and  
potentially wet areas. They are now generally required by the National Electronic Code (NEC) in these  
locations. However, what the GFCI detects to protect people - an imbalance in the currents between the  
Hot and Neutral wires caused, possibly, by someone touching a live conductor – may exist safely by  
design in three (3) wire grounded electronic equipment and consequently result in the false tripping of the  
GFCI. The reason is that there are usually small filter capacitors between all three wires (Hot, Neutral,  
and Ground) in the EMC line filters of many computer and military electronic systems. At power-on and  
often while operating there may be enough leakage current through the capacitors, between Hot and  
Ground especially, to falsely trip the GFCI. Even for ungrounded two (2) wire devices, the power-on  
surge into inductive or capacitive loads as presented by switching power supplies may falsely trip the  
GFCI. This is more likely to happen with multiple devices plugged into the same GFCI protected outlet  
especially if they are controlled by a common power switch.  
Ground fault currents can properly result from deteriorating wiring; contact contamination due to moisture,  
oil or dust; insulation breakdown; or other conditions which are indicators that repairs need to be made.  
We have verified the operation of the QuietPower 1800 for compatibility with the PAC-216/U adapter for  
SINCGARS, laptop and desktop computer systems (including monitors and laser printers), cellular  
telephone rechargers, fluorescent lamps, and Uninterruptable Power Supplies manufactured by APS.  
This system is also compatible with personal electronics (radios) and, importantly, most coffee makers.  
Visit our Web Site for FAQs  
We appreciate your input very much. You, best, know how this equipment is used operationally and can  
provide invaluable feedback. Please visit our web site at www.iristechnology.org for updates to the  
Operator's Manual and Product Data Sheets. We will be establishing a Frequently Asked Questions  
(FAQs) section specific to our military inverter line. If you take a few moments to register online, we will  
notify you of any relevant data releases.  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 21  
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Energy Flow  
The only energy source put into  
your military vehicle enters in the  
form of diesel fuel  
3) A fraction of this electrical  
energy is stored in the batteries for  
future use (such as starting)  
4) Some of this energy  
can be converted by the  
QuietPower from 24  
VDC to 115 VAC  
(with ~ 90% efficiency)  
1) Some of this energy is  
converted by the engine to  
mechanical energy for motion  
2) Some of this mechanical  
energy is converted by the  
alternator to electrical energy  
Energy Storage  
1) When the vehicle is running, the  
alternator provides most of the  
current demanded by the  
connected electrical systems  
2) The excess current flows into the  
storage batteries to:  
a) deliver electrical power when the  
vehicle is not running  
b) supply surge currents exceeding the  
nominal output of the alternator  
QuietPower 1800 Inverter Owner’s Manual  
Rev 15 OCT 01 Page 22  
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