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Frequently Asked Questions
Table of Content
Solar Energy System
 
What is a solar energy system?
What components make a solar system?
Will a solar system operate when the utility has an outage?
Does a solar system use software?
Can I add a solar system to my house?
Should I worry about roof safety with solar system?
Can I install a solar system myself?
What is the lifetime of a solar system?
How much does a solar system cost?
Should solar panels be cleaned periodically?
UPS (Uninterruptible Power System)
 
Why do I need a UPS?
What is a "Smart" UPS?
How do I determine what size UPS to get?
Should I put a UPS at each workstation?
Is there any equipment I should not connect to my UPS?
Why do I need UPSMON?
How does my UPS conflict with other devices?
The charge light (Yellow) on my King Office UPS is always illuminated. Is this unit bad?
I plugged the UPS into wall outlet, but there is no power from the UPS. Why?
What should I do with my non working UPS. The company I bought the unit from is closed?

If your question is not listed above, please call our Technical Support at (714)526-5888 or Send Email to: Custsrv@powercom-usa.com

What is a solar energy system?
  Exposed to sunlight, some semiconducting materials can emit electrons. Solar energy systems use photovoltaic panels (PV modules) to convert light energy to electricity. This electricity can then be used to provide power for homes and businesses.
What components make a solar system?
  There are different varieties of solar systems. Powercom solar systems consist of a PV panel array, inverter, and battery group, charger, logger (containing system operation data), and monitor software.
Will a solar system operate when the utility has an outage?
  Normally solar systems stop producing power when the electric grid is down and resume automatically when the grid comes back up. If a solar system has batteries, battery backup will be available during a power outage.
Does a solar system use software?
  With the software, the status of your solar system can be monitored via computer or mobile phone. However, you may choose to not use software if that isn't your cup of tea.
Can I add a solar system to my house?
  Yes. In fact, you're encouraged to do so. There are a number of state and federal financing incentives that offer sizable rebates and credits to those who go solar. Solar systems have also been shown to significantly improve property value.
The most effective systems are on homes with a south-facing roof and no shade from other buildings or trees. East and west orientations also provide significant solar energy. If roof space is limited or shaded, ground mounts offer an excellent alternative.
Should I worry about roof safety with solar system?
 

Professional installers have been installing solar panels for 30 years. They can prepare plans to ensure that PV will have no negative impact on your home's ability to withstand adverse weather and that the solar system will be as resilient as the rest of your home. You would ideally replace your shingles before you put in solar panel mounts, although this is not absolutely necessary.
Also, your insurance companies will be obligated to insure your system, just as they insure the rest of your household items.

Can I install a solar system myself?
  DIY is very attractive option for many people. However solar systems are very sophisticated. Experience shows that most problems with solar systems are the result of poor installation. Hiring a professional contractor experienced with solar technology will help you avoid these problems.
What is the lifetime of a solar system?
  PV panels can last about 30 years if they are installed and maintained properly. However, after 10 years, the power output will drop to 90%, and 80% after 25 years.
How much does a solar system cost?
  The total cost includes the solar system components and installation. The cost of the solar components depends primarily on the size and rating of the system. For details, please contact our sales representatives.
Should solar panels be cleaned periodically?
  Normally, rain is sufficient to clean the panels. However, if the panels are located in an especially dusty area, spraying them with a hose while cool will keep them in good condition.
Why do I need a UPS (uninterruptible power supply)?
  If you need optimum performance and longevity from your electronic equipment and if you need a reliable short-term backup power source in the event of a blackout, then you need a UPS to protect your equipment.
What is a "Smart" UPS?
  The real meaning of “smart” UPS is one, which has a built-in microprocessor and an RS-232 interface port. In addition to automatic shutdown capability, a "Smart" UPS is able to monitor more operating parameters, such as: Input & Output Voltage and frequency, Load Level, Battery level, and more.
How do I determine what size UPS to get?
  UPSs are sized by their volt-amp (VA) load. To calculate the VA load of your system check the UL label for the operating voltage and amperage drawn. Add the amperages of each component to be powered by the UPS and multiply the number by the voltage (120V for US applications). This number is your VA load and the minimum size required. It is good idea to size your UPS at least 30% larger than the minimum VA load to leave room for future needs.
Should I put a UPS at each workstation?
  Yes, it is a good idea because this is where the most recent work is being done, and this data is most vulnerable to loss or corruption in the event of power outage.
Is there any equipment I should not connect to my UPS?
  In general, you shouldn't connect a laser printer to your UPS because a laser printer draws a tremendous amount of power and will likely overload your UPS and cause the UPS fuse to blow. Most of the office equipment, such as computers, monitors, fax machines, and networking equipment, should work fine with most UPSs. Do bear in mind that larger size monitors consume much more power than smaller monitors and will likely reduce battery runtime significantly. Also you should not connect a surge suppressor at the output of UPS, in case the surge suppressor creates a short circuit and damages your UPS.
Why do I need UPSMON (the power monitoring and automatic shutdown software)?
 

During a power interruption, a decision must be made when and if to gracefully shutdown the computer system. On a computer system that always has someone within earshot and eyeshot, this is usually done manually – when the UPS kicks on during a power failure, the administrator decides whether to ride it out on battery power or to save files and close programs. However, on an unattended computer system, nobody is around to make that decision. In that case, during a power failure, the UPS will kick on and run the computer system, but only until its battery is depleted. Therefore, it is important to have automatic shutdown software that will safely shut down the computer system after a pre-configured time period of when the computer receives a low battery signal from the UPS. UPS monitoring and automatic shutdown software also can broadcast power fail messages to network workstations, keep an historical log of abnormal power conditions, and alert the system to page the administrator.

How does my UPS conflict with other devices?
  If your mouse uses COM1 and your UPS uses COM2, the default hardware interrupt (IRQ) settings for COM1 and COM2 are IRQ4 and IRQ3 respectively. If your modem on COM3 is also using IRQ3 there will be a conflict with the UPS on COM2. Since serial devices can not share a communication port or its hardware interrupt, the interrupt for the modem must be altered. Check with the modem manual to find out how to change the IRQ setting. Suggested IRQ includes 5 and 10. If these two IRQs are not free in your system, you can use IRQ7 since LPT1 is capable of sharing it.
The charge light (Yellow) on my King Office UPS is always illuminated. Is this unit bad?
  The charging light indicator is normally illuminated on the King Office Models (KOF-280, KOF-300S, KOF-500S).
I plugged the UPS into wall outlet, but there is no power from the UPS. Why?
  You have not turned your UPS on. The power switch on King Office Series UPS have button switch located on the top of the unit and labeled "on/test". To turn the UPS on, depress the button and hold it down until the green LED light " Line OK" turns on and stay on. When the unit is activated, it performs a self test for short period of time. During this process, the Line OK light will turn off momentarily and the Backup LED will turn on. After approximately 2 seconds, the Backup LED turns off and the LINE OK LED will turn on and remain steady on.
What should I do with my non working UPS. The company I bought the unit from is closed?
  You can call the RMA Department at Powercom at (714)526-5888 to obtain an RMA number. You need to provide the technician information regarding your device and a copy of the invoice.
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