YUEQING 5000W 24V Pure Sine Wave Inverter Instruction Manual

YUEQING 5000W 24V Pure Sine Wave Inverter

Read this guide before installing or using the inverter and save it for future reference.

Safety First
Incorrect installation or misuse of the inverter may result in danger to the user or hazardous conditions. We urge you to pay special attention to all CAUTION and WARNING statements.

CAUTION
statements identify conditions or practices that may result in damage to other equipment.

WARNING
statements identify conditions that may result in personal injury or loss of life.

WARNING!
Shock hazard. Keep away from children.

• The inverter generates the same potentially lethal AC power as a normal household wall outlet. Treat it with the same respect that you should have for any AC outlet.
• Do not insert foreign objects into the inverter’s AC outlets, fan or vent openings.
• Do not expose the inverter to water, rain, snow or spray.
• Do not, under any circumstances, connect the inverter to utility power AC distribution wiring.

WARNING! Heated surface.

• The inverter’s housing may become uncomfortably warm, reaching 140℉ (60℃) under extended high-power operation.
• Ensure that at least 2 inches (5cm) of air, space is maintained on all sides of the inverter. During operation, keep away from materials that may be affected by high temperatures.

WARNING! Explosion hazard.

• Do not use the inverter in the presence of flammable fumes or gases, such as in the bilge of a gasoline-powered boat, or near propane tanks.
• Do not use the inverter in an enclosure containing automotive-type lead acid batteries. These batteries, unlike sealed batteries, vent explosive hydrogen gas, which can be ignited by sparks from electrical connections.
• When working on electrical equipment, always ensure someone is nearby to help you in an emergency. It is recommended that the installation should be undertaken by a qualified, licensed electrician.

CAUTION!

• Do not connect live AC power (City power/ Grid Electricity) to the inverter’s AC outlets. The inverter will be damaged even if it is switched OFF.
• Do not connect any AC load, which has its neutral conductor connected to the ground, to the inverter. Note that the red is for hot, the black is for neutral, and the yellow is for ground, if the breaker ground line is combined with neutral, please connect it to the black wire on the inverter. It CANNOT connect the red and yellow or black and yellow line to power the load.
• Do not expose the inverter to temperatures exceeding 104℉ (40 ℃).

CAUTION!
SAFETY INSTRUCTIONS – INVERTER RELATED

• Preventing Reverse Polarity on the DC Input Side
• When making battery connections on the input side, make sure that the polarity of battery connections is correct (Connect the Positive of the battery to the Positive terminal of the unit and the Negative of the battery to the Negative terminal of the unit). If the input is connected in reverse polarity, DC fuse(s) inside the inverter will blow and may also cause permanent damage to the inverter.

NOTE
Damage caused by reverse polarity is not covered by warranty!

• Preventing connection of the inverter AC side together. Unstackable. No stack use of several off-grid inverters.
• Connecting the inverter AC side will cause the failure of the inverter immediately. No AC output connection in series or parallel. The AC output of the inverter can not be synchronized with another AC source.
• No connection to any electrical breaker panel/load center which is also from utility power or generator.
• The AC power back to the inverter will instantly damage the output section of the inverter, and may also cause a fire or safety hazard.
• Connection from Batteries to the DC Input Side – Sizing of Cables and Fuses
• The cable for connecting the battery and the inverter will affect the inverter output performance, please use all of the cables supplied in the pack or larger cable.
• The fuse between the battery and the inverter will also affect the output power. Please calculate the fuse or breaker amper with this formula inverter power/input voltage * 2.
• Do not overload. Do not use equipment with exceeding power capacity than the power inverter’s rated power.
• Better to use 80% of the rated power of the power inverter for the longevity of the power inverter. Pay attention to the inductive load with 5-10 times higher.

Product Introduction

The SPF series pure sine wave inverter is a high-frequency inverter with a split phase output. It can supply both 120vac and 240vac at the same time. Its wire terminal can connect to the circuit panel in the house directly.

Inverter Specification

• Rated Continuous Power: 3000W/6000W/9000W
• Surge output power: 2 times higher than the rated power
• Standby input power: 3000W<30W, 6000W <40W, 9000W<45W
• DC Input Voltage: 24V/36V/48V
• DC input voltage range:20~30VDC/30~45VDC/40~60VDC
• High battery shutdown range: 30V/45V/60V
• AC output voltage (nominal): 120VAC and 240VAC
• AC output frequency: 50±2Hz/60±2Hz
• AC output waveform: Pure sine wave
• Conversion efficiency: ≧90%
• Ambient operating temperature range: 32℉-104℉/0℃-70℃
• Cooling method: Intelligent temperature-controlled fan or the load power reaches half of the inverter power
• Protection: Input low voltage protection, Input high voltage protection, overload protection, temperature protection, short circuit protection, and battery reverse protection.
• Packing: inverter, cable, fuse, manual, warranty card.

NOTE
The fuse is for the replacement of the fuse inside of the inverter as a backup. No need for usage change the first time.

Insulation performance
Dielectric voltage withstand

Inverter Operation
Working Environment: Indoor use only. Choose a cool, clean, dry and well- ventilated place. Close the battery bank to prevent the voltage drop in the battery cables. Make enough room to access the AC receptacles and DC wiring terminal and connections.

Mounting Orientation
The inverter can be mounted horizontally on a vertical surface like a wall. Mount on a non-combustible material. The mounting surface can support the weight of the unit.

DC Side Connection

• Preventing DC input Over voltage. Do not connect the inverter to a battery system with a voltage higher than the rated battery input voltage.
• Do not use a solar panel or solar charge controller to connect to the inverter. Only connect the inverter with well well-charged battery or battery bank with stable voltage.

Recommended Size of battery cables and fuses

• Length:50cm/ 19.7inches

Operation instructions for LCD

Instructions for the main interface

1. Display of battery status: display the voltage of the battery and battery capacity

2. Inverter status: Normal or Fault
   Fault includes:

   • Over Hot: The temperature inside of the inverter is higher than 70℃
   • Bat Over V: battery high voltage protection mode
   • Bat Low V: battery low voltage protection mode
   • Short Cur Af: short circuit on the AC output side
   • Over Load: overload on the AC side

3. Working temperature: display the temperature inside of the inverter

4. Output voltage and current: show AC1/AC2 for 120VAC

5. Support Contacts display: click the area, show the manufacturer information

6. Output voltage and frequency for 240VAC
   Notes: The screen may suspend work in white due to insufficient memory that is caused by rapid and frequent screen touch operations. In such a case, please wait for a few seconds patiently and the screen will restart and resume work.

Inverter Output Layout （3000w for example）

1. 15A standard industrial US sockets for 120VAC
   Note: 1500w is highest for one double US socket (AC1 / AC2), AC1 and AC2 can support the 1500W output at the same time. There will be 3000w in total from AC1 and AC2. (if just use one 120vac, with just AC1 or AC2, the output voltage will decrease 0-8v according to the load.)

2. ON/OFF switch

3. Grounding screwNote: The G line on the terminal is connected to the grounding screw as long as one of them is grounded, the inside of the inverter and the inverter shell will be grounded.

4. Socket type for 240VAC output,3000W MAX

5. Wire terminal for AC output: L1 for live, N for neutral, L2 for live, G for ground.

6. Wiring instructions for your house panel

NOTE

1. The total amper cannot be higher than 12.5A for all the connections. if you use both of the 120vac and 220vac, the highest current is 12.5A. for example, there is 1000w 220v equipment, its current is 1000/220=4.55A. for the 120v, its total current cannot be higher than 7.45A in total.
2. If the house neutral wire is combined with the ground, connect the N line with it, leave the G line alone, Do not connect the inverter’s G line with the N line together.

DC Side Connection

1. Red binding post for the positive, black binding post for the negative.
   Step 1: Connect Negative Cable: After connecting the cable to the battery, connect the black cable to the black binding post
   Step 2: Contacting Spark-Proof nut: contact the red cable to the Spark- Proof nut and wait for 3-5 second
   Step 3: Connect positive Cable: connect the red cable to the red binding post to finish the wiring.

2. Use the cable we send in the package to connect the battery and inverter, otherwise, the full output power will not be guaranteed.

3. It is recommended the inverter connect after the battery directly. Do not connect it to the solar controller.

4. For 24/7/365 long-time usage, it is recommended 70% of the rated power usage.

5. The battery voltage must be the same as the inverter input voltage.

AC Side Connection
Make sure the inverter power switch is in the OFF position. Connect the inverter to a fully charged battery or battery bank. Connect the electric appliance to the AC output socket of the inverter. Turn the inverter “ON” – the LCD light up. Turn on the Appliance. When finished, turn off the appliance first, then turn the inverter power switch to The “OFF” position, which will shut down the inverter.
IMPORTANT: Vehicle batteries are designed to provide brief periods of very high current needed for engine starting. They are not intended for constant deep discharge. Regularly operating the inverter shortens the life of the battery. Consider connecting the inverter to a separate deep discharge type battery if you will be frequently running electrical products for extended periods.

Inverter Load Reference

Rated Continuous Power
This rating may be specified as “Active Power” in Watts (W) or “Apparent Power” in Volt Amps (VA). It is normally specified in“Active Power (P)” in Watts for Resistive type of loads that have Power factor =1. Reactive types of loads will draw a higher value of “Apparent Power” which is the sum of “Active and Reactive Powers”. Thus, the AC power source should be sized based on the higher“Apparent Power” Rating in (VA) for all Reactive Types of AC loads. If the AC power source is sized based on the lower “Active Power” Rating in Watts (W), the AC power source may be subjected to overload conditions when powering reactive-type loads.

Surge Power Rating
During start-up, certain loads require a considerably higher surge of power for a short duration (lasting from tens of milliseconds to a few seconds) as compared to their Maximum Continuous Running Power Rating. The inverter’s continuous power should be higher than the surge power rating of these appliances. Some  examples of such loads are given below:

Electric Motors: At the moment when an electric motor is powered ON, the the rotor is stationary (equivalent to being “Locked”), there is no “Back EMF” and the windings draw a very heavy surge of starting current (Amperes) called “Locked Rotor Amperes”(LRA) due to low DC resistance of the windings. For example, in motor-driven loads like Air-conditioning and Refrigeration Compressors Well Pumps (using a Pressure Tank), the Starting Surge Current / LRA may be as high as 10 times its rated Full Load Amps (FLA) / Maximum Continuous Running Power Rating.

The value and duration of the starting Surge Current / LRA of the motor depends upon the winding design of the motor and the inertia/resistance to movement of mechanical load being driven by the motor. As the motor speed rises to its rated RPM, “Back EMF” proportional to the RPM is generated in the windings and the current draw reduces proportionately till it draws the running FLA / Maximum Continuous Running Power Rating at the rated RPM.

Transformers (e.g. Isolation Transformers, Step-up / Step-down Transformers, Power Transformers in Microwave Ovens etc.): At the moment when AC power is supplied to a transformer, the transformer draws a very heavy surge of “Magnetization Inrush Current” for a few milliseconds that can reach up to 10 times the Maximum Continuous Rating of the Transformer. Devices like Infrared Quartz Halogen Heaters (also used in Laser Printers) / Quartz Halogen Lights / Incandescent Light Bulbs using Tungsten heating elements: Tungsten has a very high Positive Temperature Coefficient of Resistance i.e. it has lower resistance when cold and higher resistance when hot. As the Tungsten heating element will be cold at the time of powering ON, its resistance will be low and hence, the device will draw a very heavy surge of current with a consequent very heavy surge of power with a value of up to 8 times the Maximum Continuous Running AC Power.

AC to DC Switched Mode Power Supplies (SMPS): This type of power supply is used as a stand-alone power supply or as a front end in all electronic devices powered from Utility/ Grid e.g. in audio/video/ computing devices and battery chargers. When this power supply is switched ON, its internal input side capacitors start charging resulting in a very high surge of Inrush Current for a few milliseconds. This surge of inrush current/power may reach up to 15 times the Continuous Maximum Running Power Rating. The surge of inrush current/power will, however, be limited by the Surge Power Rating of the AC source.

Applicable Scope
Vehicle/RV/Ship/Household/Office/Camping/Field Use/Laboratory/Fleet/Heavy duty trucks/work vehicles/buses/coaches. etc Electronic devices are an integral part of our lives. When travelling in a car, RV or boat, during camping or other outdoor events, we need a mobile power solution for electronic equipment. The pure sine wave inverter is an ideal power backup for emergency or home power outages.

Applicable AC appliances
Energy-saving lamps, LED bulbs, LED lamps, hair dryers, TVs, Computer, washing machines, household fans, cookers, microwave ovens, irons, soybean milk machines, juicers, blenders, kitchen electronics,  shavers, digital products, phones, printers, projector, audio, video, electric drill, hand tool, air conditioner, water pump, motor, packing machine, refrigerator, etc. Note: Please pay attention to the inductive load, for which the user should choose a power inverter with 5-10 times higher rated power. If not sure, please consult the manufacturer.

Parallel Connection
When two or more batteries are connected in parallel, the voltage will remain the same but their Ah capacity will add up. Please see the chart. When the 4 pcs of 12V, 100Ah batteries are connected in parallel, a battery bank of 12v with a capacity of 400Ah will be made.

Series Parallel Connection The following chart shows a series-parallel connection consisting of four 6V, 200AH batteries to get a 12V, 400Ah battery bank. For string 1, two 6v, 200ah batteries are connected in series to get a 12v, 200Ah battery. Do the same to have string 2. The 2 strings are connected in parallel to have a 12v,400Ah bank.

Warranty

One-year warranty that commences from the date of purchase, under the following conditions:

• That all defects are attributable to material or production defects/errors and not improper use (warranty is void if the unit is improperly used, improperly installed or damaged through negligence)
• The warranty claim is made within the warranty period (proof of purchase required)
• Any unit covered under warranty will be repaired or replaced at the discretion of the distributor, after being assessed by the distributor and deemed a defect covered by warranty
• The warranty does not cover parts such as external cases, fuses, connectors, input leads, etc.

FAQ, Frequently Asked Question

What is the difference between a pure sine wave inverter and a modified sine wave inverter.

Modified sine wave inverter use less elaborate switching and filtering circuitry? There would be electrical noises or interference that can prevent this inverter from properly powering certain loads. The frequency and voltage of their outputs may vary and contain some noise and distortion. It can run some resistive loads like light bulbs etc. But it is not good for many appliances and affects the use life of the appliances. Pure sine wave inverter produces the pure sine wave power which is as good as the grid power. With today’s technological advancements, more electronics require true sine wave power to operate correctly. Pure sine wave inverters are designed to emulate the power. Some appliances require pure sine wave, including computers, digital clocks, battery chargers, light dimmers, auto and visual equipment, variable speed motors, pumps, air conditioners, precision machines, induction cookers, microwave ovens, compressors, water pumps, etc.Pure sine wave inverters have a distinct advantage over modified sine wave inverters in terms of performance, and power consumption. Choose a pure sine wave inverter for the goodness and longevity of your appliances.

How to choose a suitable power of inverter?

It depends on the power of the appliances. Choose the power inverter based on the maximum power of the AC load. For resistive load such as a cooker for 800w, choose 1000W an inverter. For inductive loads such as refrigerators, A/C, pumps, motors, compressors etc., the surge power can be 5-10 times higher. Please choose the power inverter with the power of 5-10 times or higher.

How long can the power inverter last to power up my appliances?

It depends on the power of the AC appliances and the capacity of the batteries. For example, for a 12V,100Ah battery to power up an appliance of 300W. Theoretically, the working time=12V100AH0.8*0.9/300w=2.88 hours. Note: 0.8 is the battery discharge coefficient,0.9 is the inverter’s conversion efficiency)

How to connect the batteries?

When two or more batteries are connected in series, the voltages will add up but their Ah capacity remains the same. Please see the chart. When the 4 pcs of 6V, 200Ah batteries connected in series, a battery bank of 24v with a capacity of 200Ah will be made.

YUEQING RELIABLE ELECTRIC CO., LTD
Email: info@powerreliable.com
Skype: goreliablepower
Tel: +86-577-62079177
Whatsapp: +86-135-1577-5816
Facebook: www.facebook.com/wzrelb
Online store: http://www.reliableinverters.com
Add: No.3 Qitou Industrial Zone, Huanghua Town, Yueqing City, 325600,
Zhejiang, China

References

• Pure Sine Wave Inverter

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