WFCO WF-5110H User manual

WF-5100 Series
1000 Watt Pure Sine Wave
Power Inverter,
Users Manual
Distributed in the USA and Canada by CHENG USA, INC.
2021 Aeroplex Drive North. Elkhart, IN. 46514
Phone: [phone], Fax: [phone]
www.wfcoelectronics.com

1. Important Safety Instructions
WARNING !
be sure to read these safety instructions.
1-1. General Safety Precautions
1-1-1.Do not expose the WF-5100 series inverter to rain,snow,spray,bilge or
dust.To reduce risk of hazard, do not cover or obstruct the
ventilation openings. Do not install the WF- Inverter in a5100 series
zero-clearance compartment. Overheating may result.
1-1-2.To avoid arisk of fire and electric shock.Make sure that existing
wiring is in good electrical condition; and that wire size is not
under sized.Do not operate the WF- inverter with5100 series
damaged or substandard wiring.
1-1-3.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 generator, fuel tanks, or joints, fittings, or other
connection between components of the fuel system.
1-2. Precautions When Working with Batteries
1-2-1.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.
1-2-2.Never smoke or allow aspark or flame in vicinity of battery.
1-2-3.Do not drop ametal tool on the battery. The resulting spark or
short-circuit on the battery or other electrical part may cause an
explosion.
1-2-4.Remove personal metal items such as rings, bracelets, necklaces,
and watches when working with alead-acid battery.
Alead-acid battery produces ashort-circuit current high enough to
weld aring or the like to metal, causing asevere burn.
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Before you install and use Your WF-5100 series Inverter,

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2-1. General Information
Please read all instructions and cautionary marking on this manual
before using WF- series Inverter.5100
2. Functional Characteristics
The WF-5100 Series is a stand alone power inverter with AC run through and
is suitable for use in RV, Marine and other applications where clean 115Vac
voltage is required.
As long as 115Vac utility power is applied to the inverter,115Vac flow through
the inverter to appliances. Should 115Vac utility power be cut off, the inverter
automatically switches itself to the invert mode providing clean 115Vac.
Once the 115Vac utility power is reapplied the inverter switches itself back to
the run through mode. Note: Battery must be in place for run through function
to work.
The WF-5100 Series Inverter is available with
12Vdc input (WF-5110H, WF-5110G) or
24Vdc input (WF-5120H, WF-5120G). Both have 115Vac 60Hz output.
The WF-5100 Series Inverter is also available in two different versions of
output wiring:
Model: WF-5110H and WF-5120H are hard wired outputs.
Model: WF-5110G and WF-5120G have GFCI Receptacles for outputs.
This provides a safe and easy way to plug appliances directly into the inverter.

2-2. Features
Product:
1000 Watt continuous output for electronic appliances
Pure sine wave output (THD < 3%) to operate higher-end electronic Equipments.
Built in 2 milliseconds transfer time.
Built in advance microprocessor to make friendly interface with user.
Dual AC GFCI outlets or hard wire AC connection model options.
LCD display with all operation status
UL 458 approval and FCC class B.
Protection:
Battery over voltage and under voltage protections.
Over temperature protection.
Over load protection
Short Circuit protection
Ground fault protection by GFCI receptacle.
Reverse polarity protection .
AC Output Fuse(15A/600VAC)For Over-Current Protection.
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This allows the transfer from utility power to
invert power to be interruption free, protecting sensitive equipment.

2-3. Electrical Performance
Specification Model No. Model No.
Item WF-5110H.WF-5110G WF-5120H.WF-5120G
Continuous Output Power 1000W
Crest Factor 3:1
DC Input Voltage 12V 24V
115Vac
Output Voltage / Frequency
60Hz +/- 0.05%
Efficiency (full load) > %80 >80%
Output Waveform Pure Sine Wave (THD <3%)
Input Voltage Regulation 10-15
VDC
20-30
VDC
Battery Back Up Status Yellow LED
Protection
Overload, Short Circuit, Reverse Polarity (Fuse),
Over/Under Input Voltage,Over Temperature.
AC Output Fuse,GFCI.
AC Output Fuse 15Amp
Transfer switch 8.5Amp
Transfer Time <20 milliseconds
Safety UL458
EMC FCC Class B
Operating Temperature Range 0- 40 Degree C
Storage Temperature Range -30 to 70 Degree C
Cooling Loading controlled cooling fan
Dimensions 13.228 (L) x8.74 (W) x3.965 (H) Inch
Weight
4
AC Input Status
Yellow LED
Green LED
Red LED
Inverter Failure
11.5 LBS

3. Basically Descriptions
3-1Mechanical drawings
5
AIR FLOW
AC INPUT
(AC PASS THROUGH)
SJT 14AWG*3C CORD
HARDWIRE
GFCI
AC OUTPUT
RJ11 JACK
RJ11 JACK

3-2The Rear panel interface
3-2-1. AC Output Fuse:
3-2-3. Battery terminals:
Connect 12V/24V batteries or other 12V/24V power sources.
3-2-4.
Connect chassis ground terminal to earth.
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.Remote port: Connect RJ-11 wiring with remote control unit.
3-2-2
CAUTION: Do Not Remove Covers.
For Continued Fire Protection Replace Only With Specified Type And
Rate Fuse. Turns Off The Power Switch Before Replacing Fuse.
Refer Servicing To Qualified Personnel.
HARDWIRE
GFCI
AC OUTPUT
POS+ NEG-
AC OUTPUT
RJ11 JACK
RJ11 JACK
Fuse Information:
Manufacturer: LITTELFUSE INC
Model Number: KLDR15
Fuse Size: 10.3*38.1mm, Rating: 15A/600VAC
Chassis ground Lug
Chassis ground Lug

3-3The Front panel interface
3-3-1.Ventilation:
Do not obstruct, allows at least 2to 3inches of clearance for airflow.
3-3-2.AC input: Pass Through Voltage
Plug into AC source directly: 120Vac, 60Hz, 12 Amps Max.
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POWER
SWITCH
DISPLAY
SELETE
LCD DISPLAY
LED STATUS
Fuse

4. Installation
WARNING!
Shock Hazard. Before proceeding further, carefully
check to see if the Inverter is connected to the batteries,
and every electrical sources wiring is disconnected.
Do not connect output terminals of the Inverter
to incoming AC source.
4-1AC Safety Grounding:
During the AC wiring installation, AC input and output grounding are
connected to the inverter. The AC input grounding must connect to the
incoming grounding of your AC utility sources and the AC output grounding
should go to the grounding point for your loads. (for example, adistribution
panel ground bus ).
Neutral Grounding (GFCI):
The neutral conductor of the AC output circuit of the Inverter is
Automatically connected to the safety ground during inverter operation.
This conforms to National Electrical Code requirements that derived AC
sources separately (such as inverter and generators) have their neutral
conductors tied to ground in the same way that the neutral conductor from
the utility is tied to ground at the AC breaker panel.
For models configured with atransfer relay, while AC utility powers
presenting and the Inverter is in bypass mode, this connection
(neutral of the Inverter'sAC output to input safety ground ) is not
presented so that the utility neutral is only connected to ground at your
breaker panel,as required.
4-2Ground Fault Circuit Interrupters (GFCI):
Recreational Vehicles Installations (for North American approvals) will require
GFCI protection. All branch circuits connected to the AC output hard wire
should be GFCI protected. Additional electrical codes may require GFCI
protection of certain receptacles in residential installations.
While the pure sine wave output of the Inverter is equivalent to the
waveform provided by utilities, compliance with UL standards requires us to
test and recommend specific GFCI.
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Use only GENERAL PROTECHT GROUP INC,
Type DG15 ground-fault circuit-interrupter receptacles.
Or AMERICAN ELECTRIC DEPOT INC, Type G1501
ground-fault circuit-interrupter receptacles. Other types may fail
to operate properly when connected to this unit.

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4-3Hard-wire Installation
To make AC wiring connections:
4-3-1. The AC wiring compartment is located on the front panel of the
WF-5110H/WF-5120H.Remove the AC wiring compartment cover to
gain access to the AC output hard-wire(pigtails leads).
4-3-2. Connect to the AC output wiring of the WF-5110H/WF-5120H AC output
hard-wire(pigtails leads) by using wire connectors, refer to the following:
Wire length / gauge
Line (L) Black
Neutral (N) White
Ground Green or
Bare copper
Within 16 feet / AWG# 16~18
16 ~ 32 feet / AWG# 14~16
4-3-3.
After wiring, double check and review all connections to make sure
the wires are in correct position and all wires are secure.
4-4Making DC Wiring Connections :
Following recommendations for connections between the battery cables and the
DC input terminals on the Inverter. The cables should be made of high
quality copper wiring, also keep the cable length as short as possible.
If cables are not of adequate gauge (too small or too long), the
inverter performance will decrease.
Please refer to the above chart for proper cable length and gauges.
.
Battery cable fusing--- Afuse is required by the National Electrical Code
(NEC) to protect the battery and cables, AUL listed DC rated slow blow
fuse must be installed in positive battery cable, within 18 inches of the
battery.
AC output Wiring
Cables should be of adequate gauge for the length of cable being used.

WFCO recommends the following cables for an optimum inverter performance.
Model No Wire AWG Inline Fuse
WF-5110H,5110G # 4100A
WF-5120H,5120G # 650A
WARNING !
The installation of afuse must be on positive cable.
Failure to place afuse on “＋”cables running between the
Inverter and battery may cause damage to the inverter
and will void warranty.
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WF-5110G
INLINE FUSE
BATTERY

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5. Operation:
To operate the WF-5100 series Inverter, turn it on by using the ON/OFF
switch. The inverter is now ready to deliver AC power to your loads. If you
are loading several appliances, turn them on separately after the inverter
switch is on, this process is to avoid the power inverter from delivering the
starting current all at once to the loads.
5-1.Controls and indicators:
The ON/OFF switch turns on/off the control circuit of the power
inverter. The WF-5100 Inverter operates on
input voltage ranges as follows:
10 to 15.0VDC for 12V models
20 to 30.0VDC for 24V models
Yellow LED - indicates battery back up status.
Green LED - indicates AC input status.
Red LED - indicates inverter failure.
Note: Inverter will not operate on AC input only. A battery must be
connected to the inverter for inverter to operate.
LCD Display - indicates operation status.

6-1. WFCO Power Inverter :
WFCO extends, to the original owner, aLimited Power Inverter Warranty
commencing from the original date of purchase for aperiod of two (2) years.
This limited warranty is extended specifically for and is limited to Recreational
Vehicle application and is only valid in the continental United States, Alaska,
Hawaii and the Provinces of Canada. WFCO warrants, to the owner, that its
Power Inverter is free from defects in material and workmanship under normal
use and service based on its intended use and function and is limited to the repair
or replacement, at its discretion, of any defective part or defective assembly. Any
implied warranties of merchantability and fitness for intended use are limited in
duration unless applicable State Law provides otherwise. You may have other
right as specified by each individual state.
6-2. Exclusions and limitations :
The OEM warranty specifically does not apply to the following :
Any Power Inverter that has been repaired or altered by an
unauthorized person.
Any damage caused by misuse, faulty installation, testing, negligence or
accident or any Power Inverter installed in acommercial vehicle.
Any Power Inverter whose serial number has been defaced altered or
removed.
Any consequential damages arising from the loss of use of the product
including but not limited to : inconvenience, loss of service, loss of revenue,
loss or damage to personal property, cost of all services performed in
removing or replacing the WFCO Power Inverter.
6-3. Warranty:
Upon determination and validation by the OEM dealer that aWFCO Power
Inverter has adefect, the dealer shall contact the WFCO warranty service
number [phone] and obtain areturn goods authorization (RGA) number.
This number shall appear on all correspondence with warranty service.
Upon validation warranty service shall replace the Power Inverter with a
like product. The RGA number shall also be placed on the outside of the carton
used to return the product for ease of identification. Do not mark on the
Power Inverter.
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6. Warranty Information