WFCO WF-5110RS Operator’s Manual
Operator’s Manual
WF-5110RS True Sine Wave Inverter
WF-9900 Series
WF-5110RS
( The Inverter model number is located on the label on top of the enclosure)
Distributed in the U.S.A. and Canada by
ARTERRA DISTRIBUTION
(877) 294-8997
Warranty: warranty@wfcoelectronics.com
Fax (574) 294-8698
www.wfcoelectronics.com
Power PROs Technical Support
(877) 294-8997
TABLE OF CONTENTS
GENERAL INFORMATION ...................................................................................................... 3
WF-5110RS PRODUCT FEATURES .................................................................................... 4
WF-5110RS SAFETY FEATURES ......................................................................................... 4
OPERATIONAL FEATURES
Front Panel Interface ..................................................................................................................... 6
Rear Panel Interface ...................................................................................................................... 6
AC Pass-rough Mode .............................................................................................................. 6
Inverter Power Mode ................................................................................................................... 7
Diagnostic Display Panel ............................................................................................................. 7
Remote Switch Pannel .................................................................................................................. 7
TROUBLESHOOTING INSTRUCTIONS
Reverse Polarity Protection .......................................................................................................... 8
DC Input Voltage ........................................................................................................................... 8
Pass-rough ................................................................................................................................. 8
Remote Switch ................................................................................................................................ 8
No Generated Power Output ....................................................................................................... 8
Troubleshooting Flow Chart - No Pass-rough ...................................................................... 9
Troubleshooting Flow Chart - No Generated Ouptut ............................................................ 10
GENERAL COMPLIANCE INFORMATION
Agency Listings ............................................................................................................................. 11
INSTALLATION INSTRUCTIONS
Mounting the Enclosure ............................................................................................................. 11
AC Ground Bonding ................................................................................................................... 11
Neutral Bonding ........................................................................................................................... 11
AC System Wiring......................................................................................................................... 12
DC Wiring Connections .............................................................................................................. 12
Other Connections ....................................................................................................................... 13
SPECIFICATIONS .......................................................................................................................... 14
WARRANTY INFORMATION ................................................................................................... 15
DIMENSIONAL DRAWINGS .................................................................................................... 16
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GENERAL INFORMATION
e WF-5110RS is a 1000 Watt standalone power inverter with AC run-through suitable for use
in RV and other applications where clean 120 VAC voltage is required.
When 115 VAC utility power is applied to the WF-5110R Inverter through the Shore cord, 120
VAC will pass through the WF-5110RS Inverter to appliances. Should utility power be cut o,
the WF-5110RS automatically switches to invert mode, providing clean 120 VAC to the
appliances. When utility power is reapplied, the WF-5110R switches back to the run-through
mode.
e WF-5110RS Inverter requires 12 VDC input from the house battery to operate in the invert
mode. A convenient 120 VAC power cord is attached to the WF-5110RS for pass-through use.
Simply plug the power cord into any standard (non-GFCI) 120 VAC receptacle.
Please read all instructions and cautionary statements in this manual before installation and use
of the WF-5110RS Inverter.
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WF-5110RS INVERTER PRODUCT FEATURES
• Pure Sine Wave Output (THD less than 3%)
• 1000 Watt Continuous Output Power
• 2000 Watt Surge Capability to Handle Compressor/Motor Startup
• 16 Amp Resettable Circuit Breaker on AC Output
• Greater than 86% Eciency at Full Load
• Automatically Resettable Reverse Polarity Protection
• Cooling Fans Enhance Eciency; Fans Run when Unit is ON
• Remote Switch and 20 Foot Cable are Included as Standard Equipment
• Remote Switch Allows Manual On/O Control and Displays Operation Mode
• Direct AC Pass-rough When Shore or Generator Power Present
• LED Indicators on Front Panel Show System Status
• Front Panel Digital Display Shows System Parameters
• Internal Transfer Switch Can Switch Up to a 20 Amp AC Load
• Less than 50 Millisecond Transfer Time on WF-5110RS Startup/Shutdown
• Protected Against Overload, Short Circuit, Reverse Battery Polarity, Over/Under
Input Voltage, and Over Temperature
• Listings Include UL 458 and FCC Class B
• 2-Year Limited Warranty
WF-5110RS INVERTER SAFETY FEATURES
DC Reverse-Polarity Battery Protection
e WF-5110RS Inverter is protected from a reverse battery connection by an automatically
resettable Reverse Polarity circuit. is feature prevents permanent damage to the inverter
from a battery connected into the circuit backwards. Once the battery connections are
corrected, the unit will operate normally.
Over-Temperature Protection
If the internal temperature of the inverter exceeds a critical point, it will shut down. is
protects the unit from excessive heat that may damage sensitive components. Remove or
reduce the AC load and cycle the power button to restart the unit.
Electronic Current Limiting
When the WF-5110RS Inverter is in the inverting mode, should the AC output current
exceed the maximum rating, the unit will shut down. If this occurs, remove or reduce the
connected load. Cycle the power button on the front panel to restart the inverter.
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Short-Circuit Protection
Should a short circuit occur in the inverter circuit when in Pass-rough mode, the circuit
breaker supplying AC power to the inverter, or the circuit breaker located on the back panel
of the inverter, may trip. If the inverter is in inverting mode, the inverter’s internal protection
circuitry will shut the unit down.
Remove the connected load and check the wiring for a possible short circuit. If the WF-5110RS
Inverter is in Pass-rough mode, reset the circuit breaker(s). If the inverter was in invert mode,
the inverter will automatically reset. When the short-circuit condition has been removed,
reconnect the load and cycle the ON-OFF pushbutton located on the front panel. Shortcircuit conditions are dangerous and may require an inspection of the RV by a certied service
technician.
Over/Under Input Protection
e WF-5110RS Inverter has a DC input range of 10.75-16 VDC (nominal). If the battery input
should fall outside this range, the inverter will shut down to protect the circuitry.
AC Circuit Breaker
e AC output of the WF-5110RS Inverter, when in Pass-rough mode, is protected by
a resettable circuit breaker (see Figure 1 below). A 16A/120 VAC breaker is located on the
upper right on the unit’s rear panel. e breaker will trip in a high current situation. Should a
breaker trip, reduce or remove the connected AC load and reset the circuit breaker. Re-start
the inverter and check for proper operation.
Figure 1
Internal Cooling Fan
e WF-5110RS Inverter is equipped with two DC brushless fans to provide cooling for the
circuitry when the Power Pushbutton is in the ON position. e fan will run continuously.
e WF-5110RS Inverter has two fans, one located behind the front panel and the other
located at the rear panel.
CIRCUIT PROTECTION
WF-8500 Series Fuses and Breakers
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OPERATIONAL FEATURES
Front Panel Interface
Figure 2
Rear Panel Interface
Figure 3
Inverter Operation
e WF-5110RS Inverter is equipped with an internal transfer switch to automatically
route either the incoming AC power or inverter produced AC voltage through to the
output.
AC Pass-rough Mode
When incoming AC power or inverter produced power is available, the transfer switch
is designed to pass this voltage straight through to the inverter output. e WF-5110RS
Inverter power switch does not have to be in the ON position for Pass- rough to work.
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is mode will also work with or without a battery attached. NOTE: if the power switch
is in the ON position and incoming power is lost, the WF-5110RS Inverter will switch to
invert mode to provide AC voltage to connected loads.
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