Vanner IQ12-2600 User manual

VANNER POWER GROUPVANNER POWER GROUP IQ SERIESIQ SERIES
IQ SERIES OWNERS MANUAL - 1-

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IQ SERIES OWNERS MANUAL - 3-
TABLE OF CONTENTS
1INTRODUCTION..........................................................................................................................................5
1.1 MODEL LISTING.......................................................................................................................................5
1.2 SPECIFICATIONS.......................................................................................................................................6
1.3 STANDARD FEATURES..............................................................................................................................6
1.4 ACCESSORIES ..........................................................................................................................................8
1.5 DEFINITIONS............................................................................................................................................8
1.6 IMPORTANT SAFETY INSTRUCTIONS..........................................................................................................9
1.7 GENERAL PRECAUTIONS ........................................................................................................................10
1.8 EXPLOSIVE GAS PRECAUTIONS...............................................................................................................10
1.9 PRECAUTIONS WHEN WORKING WITH BATTERIES...................................................................................11
2COMPONENT IDENTIFICATION AND DESCRIPTION OF OPERATION...........................................12
2.1 (1) INVERTER INDICATOR LIGHT........................................................................................................13
2.2 (2) ON/OFF SWITCH ............................................................................................................................13
2.3 (3) BATTERTY LOW INDICATOR LIGHT .............................................................................................14
2.4 (4) OVERTEMPERATURE INDICATOR LIGHT.....................................................................................14
2.5 (5) OVERLOAD INDICATOR LIGHT......................................................................................................14
2.6 (6) BULK CHARGE INDICATOR LIGHT................................................................................................15
2.7 (7) FLOAT CHARGE INDICATOR LIGHT..............................................................................................15
2.8 (8) AC CIRCUIT BREAKER................................................................................................................15
2.9 (9) AC CIRCUIT BREAKER................................................................................................................15
2.10 (10) AC CIRCUIT BREAKER..............................................................................................................15
2.11 (11) AC OUTPUT RECEPTACLE.......................................................................................................16
2.12 (12) FRONT COVER...........................................................................................................................16
2.13 (13) AUTOMATIC POWER TRANSFER SWITCH ............................................................................16
2.14 (14) AUTOMATIC THROTTLE CONTROL TERMINAL J31............................................................16
2.15 (15) REMOTE CONTROL JACK J9....................................................................................................16
2.16 (16) BATTERY TEMPERATURE COMPENSATION CONTROL JACK J1.......................................17
2.17 (17) AUTOMATIC POWER MANAGEMENT (APM) PANEL JACK J8 ..............................................17
2.18 (18) PROGRAMMING CONTROL SWITCHES .................................................................................18
2.19 (19) 120 VOLT AC WIRING TERMINAL STRIP...............................................................................18
2.20 (20) DC INPUT WIRING COMPARTMENT ......................................................................................20
2.21 (21) GROUND WIRING LUG.............................................................................................................20
2.22 (22) MOUNTING BRACKETS............................................................................................................21
2.23 (23) COOLING FAN ...........................................................................................................................21
3INSTALLATION.........................................................................................................................................22
3.1 UNPACKING THE INVERTER ....................................................................................................................22
3.2 INVERTER INSTALLATION CONSIDERATIONS ...........................................................................................22
3.3 DC WIRING CONSIDERATIONS ...............................................................................................................22
3.4 DC WIRING INSTALLATION PROCEDURE.................................................................................................24
3.5 AC WIRING INSTALLATION PROCEDURE.................................................................................................24
3.6 REMOTE MONITOR AND CONTROL PANEL INSTALLATION........................................................................25
3.7 AUTOMATIC POWER MANAGEMENT (APM) PANEL INSTALLATION..........................................................25
4SYSTEM START-UP AND TESTING PROCEDURES ..........................................................................26
4.1 INVERTER START-UP AND TESTING.........................................................................................................26
4.2 PROCEDURE TO CHECK BATTERY CHARGER OPERATION.........................................................................27

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5THEORY OF OPERATION....................................................................................................................... 29
5.1 BATTERY CHARGER OPERATION............................................................................................................ 29
5.2 AUTOMATIC POWER TRANSFER SWITCH THEORY OF OPERATION ............................................................ 30
5.3 AUTOMATIC POWER MANAGEMENT (APM) THEORY OF OPERATION....................................................... 32
5.4 AUTOMATIC THROTTLE CONTROL TERMINAL J31 THEORY OF OPERATION.............................................. 32
6PREVENTIVE MAINTENANCE ............................................................................................................... 33
6.1 MAINTENANCE ITEMS............................................................................................................................ 33
6.2 TROUBLESHOOTING PROCEDURES.......................................................................................................... 33
6.3 GFCI TEST RECORD.............................................................................................................................. 35
7APPENDICES............................................................................................................................................ 36
7.1 INVERTER OVERVIEW............................................................................................................................ 36
7.2 PROBLEM LOADS................................................................................................................................... 36
7.3 BATTERY TYPES AND RATINGS .............................................................................................................. 37
7.4 INVERTER SIZING .................................................................................................................................. 38
7.5 DC POWER CONSUMPTION .................................................................................................................... 38
7.6 OVERALL SYSTEM DESIGN CONSIDERATIONS......................................................................................... 38
8NORTH AMERICAN LIMITED WARRANTY........................................................................................... 42
LIST of FIGURES
FIGURE 1SPECIFICATIONS ................................................................................................................................. 6
FIGURE 2IQ SERIES ILLUSTRATION.................................................................................................................. 12
FIGURE 3PROGRAMMING SWITCH INSTRUCTION LABEL ................................................................................... 17
FIGURE 4DC CABLE AND FUSE SIZING CHART................................................................................................ 23
FIGURE 5BATTERY CHARGING GRAPH............................................................................................................. 30
FIGURE 6AC POWER TRANSFER SWITCH........................................................................................................ 31

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1INTRODUCTION
Thank you for purchasing a Vanner Power Group IQ Series Inverter or Inverter/Charger. We are confident
that you will be satisfied with its performance and its many features. With proper installation and care, you
can look forward to years of service from this high performance product.
IQ stands for Industrial Quasi-sine wave.
The IQ Series is a family of dependable inverters (IQ models) and inverter/chargers (IQC models)
designed to meet the severe service requirements of the industrial market. All models of the IQ Series
produce quasi-sine wave AC output power.
This document will describe the operation, technical specifications and installation procedures of the
various models and accessories offered in this product family. We suggest that you familiarize yourself
with the model numbers of the inverter and optional accessories you have purchased before proceeding
with this manual. If you require additional information please contact your dealer, or contact us directly at
the location shown on this inside cover of this manual.
WARNING: Before you install and use your IQ Series Inverter or Inverter/Charger
be sure to read and save these safety instructions.
1.1 Model Listing
The IQ Series product line is designed to meet the requirements of a variety of applications. In order to
meet these requirements we offer the following product models:
IQ Models (Inverter Only)
12 volt 24 volt
IQ12-2600 IQ24-2600
IQ12-3600 IQ24-3600
IQC Models (Inverter/Charger)
12 volt 24 volt
IQC12-2600
IQC12-3600 IQC24-3600
NOTICE: All models of the IQ Series use the same front panel and therefore look identical. To
identify the model number of your particular unit it is necessary to refer to the
Specification Label located on the right side of the unit or to the Identification Label
located on the inside of the unit’s front cover.
PLEASE NOTE YOUR MODEL AND SERIAL NUMBER HERE FOR FUTURE REFERENCE
Model Number ____________ Serial Number ______________ Date of Installation ______________

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1.2 Specifications
Figure 1Specifications
Model Number
SPECIFICATIONS IQ12-2600 IQ24-2600 IQ12-3600 IQ24-3600
IQC12-2600 IQC24-2600 IQC12-3600 IQC24-3600
AC Output Power
Continuous 2600 Watts 2600 Watts 3600 Watts 3600 Watts
Surge (3 sec ) amps 65 Amps 65 Amps 80 Amps 80 Amps
Output Voltage - All Models 120 Volts +/- 5%
Output Frequency - All Models 60 Hz +/- 0.1 Hz
Output Waveform - All Models Modified Sine Wave
DC Input Voltage Range 10.5 - 16.0 VDC 21.0 - 32.0 VDC 10.5 - 16.0 VDC 21.0 - 32.0 VDC
DC Input Current Draw at no load
Inverter OFF 60 ma 60 ma 60 ma 60 ma
Inverter ON in Load Demand Mode 160 ma 160 ma 160 ma 160 ma
Inverter ON - Load Demand OFF 1.8 amps 1.8 amps
AC Output Wiring Method
All IQ Models (inverter only) 1 GFCI Duplex Receptacle
All circuits are breaker protected 1 - 15 amp output terminal
1 - 20 amp output terminal
1 - 30 amp output terminal
All IQC Models (inverter/charger) 1 GFCI Duplex Receptacle
All circuits are breaker protected 1 - 30 amp output terminal
AC Input Wiring Method
All IQC Models (inverter/charger) 1 - 30 amp input terminal for charging and feedthrough
All circuits are breaker protected 1 - 30 amp input terminal for optional feedthrough only
Battery Charger (IQC Models)
Charging Output Current 120 amps 60 amps 120 amps 60 amps
AC Input current Proportional to 30 amps 120VAC input @ 120 amps 12 volt output
WET Bulk Charge Voltage 14.4 vdc 28.8 vdc 14.4 vdc 28.8 vdc
WET Float Charge Voltage 13.2 vdc 26.4 vdc 13.2 vdc 26.4 vdc
GEL Bulk Charge Voltage 14.1 vdc 28.2 vdc 14.1 vdc 28.2 vdc
GEL Float Charge Voltage 13.6 vdc 27.2 vdc 13.6 vdc 27.2 vdc
AC Input Voltage Tolerance for Transfer Switch
Low Input Voltage Switchover Value 90VAC or 77VAC (Selectable)
AC Input Voltage 120 VAC + 12 volts / - 30 or -43 volts (selectable)
AC Input Frequency 60 Hz +/- 5 Hz
Transfer Switch transfer time 30 ms
System
Ambient Temperature Continuous output at -40 to +105 degrees F (-40 to +40 degrees C)
Cooling Air Thermostatically controlled exhaust fan
Enclosure White painted aluminum with noncorrosive hardware
Dimensions All Models 8.4"H x 17.5"W x 14.0"D
Unit Weight 60 Ibs 60 lbs 75 lbs 75 lbs

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1.3 Standard Features
1.3.1 Standard Features furnished on All Models in the IQ Series
1. 120 volt AC 60 Hz Quasi-sine wave output
2. Output Short circuit / overload protection through electronic sensing
3. Output circuit breakers
4. Automatic shutoff for Low Battery
5. Automatic shutoff for Overload
6. Automatic momentary shutoff/restart for Over temperature
7. All controls and AC connections accessible at the front of the inverter
8. AC input/output terminal strip
9. Load Demand including Automatic Throttle Control (1 amp ground signal)
10. Load Demand enable/disable switch
11. Built-in GFCI duplex receptacle protected by a 15 amp circuit breaker.
12. Jack to accept optional Remote Switch or Remote Operating Panel
1.3.2 Additional Standard Features furnished only on IQ Models -(inverter only)
1. Three output circuits with 15 amp, 20 amp and 30 amp output circuit breakers
1.3.3 Additional Standard Features furnished only on IQC Models -
(inverter/charger)
1. Three Stage Battery Charger
2. Manually initiated Equalize Charging Cycle
3. Adjustable charge rate
4. Charging voltage settings for gel or wet batteries
5. No minimum battery voltage required for charging (will charge a Dead Battery)
6. Jack for optional Battery Temperature Compensation Sensor
7. Automatic Power Management (charger input power control)
8. Jack for optional Automatic Power Management Panel
9. Automatic Transfer Switch with 5 second acceptance time delay
10. Accepts one or two AC input circuits up to 30 amps each
11. Automatic acceptance of second AC input circuit
12. Inverter Disable switch to allow passthrough and battery charging only
13. Charger Disable switch to allow passthrough only
14. Passthrough capability while battery is disconnected
15. AC input voltage tolerance selector switch (90vac or 77vac switchover)
Please note: The Battery Charger, Automatic Transfer Switch and Automatic Power
Management are operational only when AC input power (shore power) is present.

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1.4 Accessories
Part Number Name Description
D07869 Remote Operating Panel Remote ON/OFF Switch and Indicator Light
Display Panel with 25ft modular cord.
D07905 Universal Remote Adapter Screw terminal phone jack adapter and 2ft
modular cord. Allows use of customer supplied
SPDT center OFF momentary switch.
D07917 Remote ON/OFF Switch SPDT center OFF momentary toggle switch, 25ft
cord and includes D07905.
D07934 APM Panel Auxiliary Power Management Panel with 25ft
modular cord.
D07924 30 Amp AC Output Cord 30 amp Twist Lock receptacle mounted to 1ft
long 10/3 cable with forked connectors.
D07923-03 Quick Connect DC Input for 3/0 For use with customer supplied 3/0 DC input
cable. Includes 18" long 4/0 DC Input Cable with
polarized 350 amp Quick Connector, and mating
connector for 3/0 cable.
D07923-04 Quick Connect DC Input for 4/0 For use with customer supplied 4/0 DC input
cable. Includes 18" long 4/0 DC Input Cable with
polarized 350 amp Quick Connector, and mating
connector for 4/0 cable.
1.5 Definitions
1.5.1 Quasi Sine Wave:
Quasi Sine Wave Inverters are sometimes called "modified sine wave inverters" or "modified
square wave inverters." Quasi sine wave inverters produce an AC output wave different from the
power produced by the electric utility companies and rotating generators. Although this wave form
has a higher peak voltage than do square wave inverters, its peak voltage is not as high as a
pure sine wave. Therefore, AC loads containing power supplies might not always operate
properly on the quasi sine wave inverters.
1.5.2 Load Demand Feature and Load Demand Mode:
The Load Demand Feature is an energy conserving feature which allows the inverter to enter the
‘Load Demand Mode’ whenever the inverter is ON and the AC load has been less than 5 watts for
approximately 5 seconds. While in the ‘Load Demand Mode’ the inverter does not produce 120
volts AC but instead produces pulses of reduced AC voltage which the inverter uses to look for a
load. When an AC load greater than 5 watts is sensed, the inverter will turn fully ON to produce
120 Volts AC. The ‘Load Demand Mode’ is often also described as ‘stand-by mode’ or ‘sleep
mode’. While in the ‘Load Demand Mode’ the inverter consumes approximately 140 milliamps of
12 volt DC power.

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The Load Demand Feature can be turned OFF by setting Selector Switch 2 to the OFF position.
This will cause the inverter to remain fully ON, producing 120 Volts AC, whenever the inverter
switch is ON and regardless of AC load. It is desirable to do this when the device being powered
draws less than 5 watts. An example of such a device is a plastic pipe fusion machine which
draws less than 5 watts during the ‘coupling cooling time’. With the Load Demand Feature turned
OFF and operating no AC load the inverter consumes approximately 1.8 amps of 12 volt DC
power.
1.5.3 Automatic Transfer Switch:
The Transfer Switch is a standard feature provided on all IQC models. The Transfer Switch
automatically allows input power, from an external AC power source such as shore power or a
generator, to pass through the inverter output circuit and be used to operate inverter loads.
1.5.4 Automatic Power Management:
The optional Automatic Power Management (APM) Panel, part number D07934, may be used
with IQC Models only. The APM Panel allows the operator to set the maximum AC amps (10
amps, 15 amps, 20 amps or 30 amps) the battery charger may draw from shore power input AC1.
The APM Panel is useful in preventing nuisance tripping of the shore power circuit breaker in
motor home or similar applications, where the size of the shore power circuit breaker varies from
campground to campground and occasionally be rated less than 30 amps. If the AMP Panel is
not used the default setting is 30 amps.
1.5.5 Inverter Mode and Charger Mode
The following applies only to IQC Models. IQ Models do not have charger mode.
The IQC is in ‘Inverter Mode’ when it is functioning as an inverter. The unit is in ‘Charger Mode’
when it is functioning as a battery charger.
For all IQC models, the factor that determines whether the unit is in ‘Inverter Mode’ or ‘Battery
Charger Mode’ is the presence or absence of ‘in-tolerance’ AC input power. Whenever ‘in-
tolerance’ AC input power becomes available the IQC automatically switches from inverter mode
to charger mode.
1.6 Important Safety Instructions
This manual contains important safety and operating instructions for the Vanner Power Group “IQ Series”
Power Inverter and Inverter/Charger System as prescribed by Underwriters Laboratory (UL). The IQ
Series Inverter and Inverter/Charger Family is listed as compliant with UL 458 (only if the UL/CUL symbol
is on the front of the unit), Power Converters/Inverters and Power Converter/Inverter Systems for Land
Vehicles (12 and 24 volt models only), and UL 1741 Power Conditioning Units for use in Residential
Photovoltaic Power Systems. The Vanner Power Group “IQ Series” also is listed to the Canadian National
Standard CSA – C22.2 No. 107.1 – 1951.
SAVE THESE INSTRUCTIONS
WARNING This equipment employs components that tend to produce arcs and sparks. To prevent
fire or explosion, DO NOT install in confined areas or compartments that contain batteries
or flammable materials.

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WARNING Risk of electrical shock. Use only the ground fault circuit interrupter (GFCI) receptacle(s)
or circuit breaker(s) specified in the installation and operating instructions supplied with
this inverter. Other types may fail to operate properly when connected to this equipment.
CAUTION Read owners manual BEFORE wiring or powering up.
CAUTION DO NOT cover or obstruct ventilation openings. DO NOT mount in zero-clearance
compartments. Overheating may result.
NOTICE The output of this device in not sinusoidal. The IQ SERIES inverter has a total harmonic
distortion of 34.6 percent and maximum single harmonic of 24 percent.
1.7 General Precautions
1. Do not expose the Vanner IQ series Inverter to direct water spray or snow.
2. To reduce the risk of a fire hazard, do not cover or obstruct the ventilation openings.
3. Do not install this unit in a zero clearance compartment the result may be overheating or diminished
performance.
4. To avoid the risk of fire, electric shock, or injury to persons, do not use attachments not
recommended or sold by the Vanner Power Group
5. Vanner recommends that all DC and AC electrical wiring be performed by a certified electrician or
technician to ensure compliance with all proper national and local wiring regulations.
6. To avoid a risk of fire and/or electric shock, always verify wiring connections are in good electrical
condition. All external conductors must use proper wire size to avoid dangerous overheating or
diminished performance.
7. If the Vanner inverter system has been dropped or damaged in any way, do not operate until its
operation has been verified to be safe by a qualified technician.
8. To reduce the risk of electric shock always disconnect the AC and DC connections to the Vanner
Inverter system before attempting any maintenance. Simply turning the unit off does not prevent
electric shock.
9. The Vanner “IQ Series” inverter system must be properly grounded in accordance with local and
national codes and ordinances before operation. For most installations the negative (ground)
conductor should be bonded to the grounding system at one and only one point in the system.
10. Do not disassemble the IQ Series Inverter/Charger; see the service section of this manual for
instructions on obtaining service for the IQ Series Inverter/Charger. Attempting to service the unit
yourself may result in a risk of electrical shock or fire
1.8 Explosive Gas Precautions
1. This equipment contains components, which tend to 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. 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.

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1.9 Precautions When Working with Batteries
1. Always have someone within range of your voice to come to your aid when you work near a lead-acid
battery.
2. Have access to plenty of fresh water and soap nearby in case battery acid contacts skin, clothing, or
eyes.
3. Always wear complete eye protection and clothing protection. Avoid touching eyes while working near
batteries.
4. 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.
5. NEVER smoke or allow a spark of flame in the vicinity of batteries. Gases produced by batteries are
explosive.
6. Be careful when working with metal tools around batteries. Potential for spark exists or short-circuit
of the battery or other electrical part that may cause an explosion.
7. Never charge a frozen battery. Attempt to warm battery above 32 degrees F before charging.

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2COMPONENT IDENTIFICATION and DESCRIPTION of OPERATION
Numbered paragraphs in this section correspond with Figure 1 – Inverter Illustration
Figure 2IQ Series Illustration

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2.1 (1) INVERTER Indicator Light
All Models
Light Action Description
Green Light is OFF Inverter circuit is OFF
Solid Green Inverter is ON (producing AC power)
Fast Blinking Light Inverter is in Load Demand Mode
(2 blinks per second)
IQC Models (Inverter/Charger) in Charger Mode (shore power is ON)
Slow Blinking Light Inverter is standing by while shore power is
(1 blink per second) supplying AC power to loads.
2.2 (2) ON/OFF Switch
All Models
The ON/OFF switch is a three-position rocker switch whose function is similar to the ignition
switch on a vehicle. The low position is OFF/RESET. The middle position is ON (RUN). The high
position is START, which is a momentary position.
IQ Models and IQC Models in Inverter Mode (shore power is OFF)
OFF: In the OFF position the inverter is locked OFF. The indicator lights do not
function and the inverter cannot be started from a remote switch. (Please note
that this does not disconnect power from the inverter system.) Approximately
50ma is being drawn from the battery.
ON (RUN): The switch must be in the ON(RUN) position for the inverter to be operational
and for remote switch capability to be enabled.
START: Press the switch to the START position to start inverter operation.
RESET: If the inverter has turned itself OFF due to overload or low battery, the switch
must be moved to OFF/RESET before the inverter can be restarted.
IQC Models (Inverter/Charger) in Charger Mode ( shore power is ON)
OFF: In the OFF position the charger is locked OFF. The indicator lights do not
function and the charger cannot be started from a remote switch. (Please note
that this does not disconnect power from the inverter system.) No power is being
drawn from the battery.
Power on AC1 input is being monitored for proper voltage and frequency but
power on AC1 will not be accepted for charging or passthrough.

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If both input AC1 and AC2 have power then power on AC2 will pass through. No
power is drawn from the battery. The battery does not need to be connected for
the power on AC2 to pass through,.
ON (RUN): The switch must be in the ON(RUN) position for the charger to be operational
and for remote switch capability to be enabled.
START: Press the switch to the START position to initiate acceptance of AC1 input for
charger/transfer switch function and to start charger operation.
2.3 (3) BATTERTY LOW Indicator Light
All Models
Light Action Description
Solid Red Inverter is On and battery voltage has decayed to 11 or
22 volts DC warning imminent inverter shutdown unless
battery voltage is increased by charging.
Blinking Red Battery has decayed to 10.5 or 21.0 volts DC causing
inverter shutdown. Battery must be recharged. Then,
Inverter On/Off switch must be reset to activate.
2.4 (4) OVERTEMPERATURE Indicator Light
All Models
Light Action Description
Solid Red Inverter or Charger has shutdown due to over
temperature. Shutdown may be caused by high ambient
temperature or restricted cooling air flow to the inverter.
Shutdown sensor will automatically reset when the unit
has cooled.
2.5 (5) OVERLOAD Indicator Light
All Models
Light Action Description
Solid Red The inverter is ON and the inverter’s AC output circuitry is
sensing an overload condition. If the AC load is not reduced the
inverter will shut itself OFF.
Blinking Red The inverter is Off. An overload has occurred and the inverter
has shut off to protect itself. Once shut off, the inverter On/Off
switch must be cycled to reset the unit.

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2.6 (6) BULK CHARGE Indicator Light
IQC Models
The light is present on all models but is functional only on IQC Models.
(See ‘Battery Charger Theory of Operation’ for charger performance details.)
Light Action Description
Blinking Yellow The unit is in Charger Mode (shore power is ON) and the
charger is in either the BULK STAGE or ABSORPTION STAGE
of the battery charging cycle.
Solid Yellow The unit is in Charger Mode (shore power is ON) and the
charger is in the EQUALIZATION CYCLE.
2.7 (7) FLOAT CHARGE Indicator Light
The light is present on all models but is functional only on IQC Models.
(See ‘Battery Charger Theory of Operation’ for charger performance details.)
IQC Models
Light Action Description
Solid Green The unit is in Charger Mode (shore power is ON) and the
charger is in the FLOAT STAGE of the battery charging cycle.
Blinking Green Both the Battery Charger and Inverter functions have been
turned OFF by turning Program Switches 5 and 4 to the left
position. Shore power is ON. (See PROGRAM SWITCH
description.)
2.8 (8) AC CIRCUIT BREAKER
2.9 (9) AC CIRCUIT BREAKER
2.10 (10) AC CIRCUIT BREAKER
IQ Models (Inverter Only)
(8) CB1 20 amp Protects output circuit AC1.
(9) CB2 15 amp Protects output circuit AC2 and built-in GFCI receptacle.
(10) CB3 30 amp Protects output circuit AC3.
IQC Models (Inverter/Charger)
(8) CB1 30 amp Protects input circuit AC1.
(9) CB2 15 amp Protects built-in GFCI receptacle.
(10) CB3 30 amp Protects output circuit AC3.

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2.11 (11) AC OUTPUT RECEPTACLE
All Models
GFCI convenience receptacle, 120vac 1800 watt maximum output, protected by 15 amp circuit
breaker CB2. (The GFCI is a 20 amp T-Slot receptacle but is protected by a 15 amp breaker in
order to meet Canada’s CSA requirements. If CB2 is changed to a 20 amp breaker the unit no
longer meets CSA.)
2.12 (12) FRONT COVER
All Models
The Front Cover must be removed to access the AC Wiring Terminal Strip, the Program Switches
and remote control connections located on the control circuit board. BE SURE THE INVERTER
IS TURNED OFF AND ALL EXTERNAL SOURCES OF POWER ARE TURNED OFF BEFORE
REMOVING THE FRONT COVER to access the AC Wiring Terminal Strip.
2.13 (13) AUTOMATIC POWER TRANSFER SWITCH
IQC Models only
The Automatic Power Transfer Switch is furnished only on IQC Models and consists of a circuit
board containing two relays. (IQ Models do not have the transfer switch but instead have a
terminal strip in this location.) See Automatic Power Transfer Switch Theory of Operation for
performance details.
2.14 (14) AUTOMATIC THROTTLE CONTROL TERMINAL J31
All Models
Terminal J31 is provided to be used on utility vehicles where the inverter needs to operate
continuous heavy AC loads and the vehicle is equipped with an Automatic Throttle. Use J31 to
turn ON the Auto Throttle to insure that the vehicle alternator is producing maximum output
whenever the inverter is powering a load.
J31 is controlled by the Load Demand circuit therefore Programming Switch 2 must be in the ON
position when Terminal J31 is used.
J31 is a 1/4" spade terminal located in the lower right midsection of the control circuit board. The
terminal is designed to provide ground control for a Bosch relay, Vanner part number 05235 or
equal. Install a 1 amp fuse in line near the inverter.
2.15 (15) REMOTE CONTROL JACK J9
All Models
Jack J9 is an 8 wire modular jack for use with optional Remote Control Switch, Remote Control
Adapter or Remote Operating Panel.

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2.16 (16) BATTERY TEMPERATURE COMPENSATION CONTROL JACK J1
(Jack J1 is present on all models but is functional on IQC Models only.)
IQC Models
Jack J1 is a 4 wire modular jack for use with optional Battery Temperature Compensation
Control, Vanner part no. D00000, to reduce charging voltage at higher battery temperatures.
2.17 (17) AUTOMATIC POWER MANAGEMENT (APM) Panel JACK J8
(Jack J8 is present on all models but is functional on IQC Models only.)
IQC Models
Jack J8 is a 4 wire modular jack for use with optional Automatic Power Management (APM)
Panel, Vanner part no. D07934. The optional APM Panel allows the 30 amp (default) APM
Current Setting to be adjusted to match the circuit breaker at the shore power source (10 amps,
15 amps, 20 amps, or 30 amps). See Theory of Operation for performance details.
Figure 3Programming Switch Instruction Label

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2.18 (18) PROGRAMMING CONTROL SWITCHES
Located on the top right corner of the control circuit board is a 10 position DIP switch containing
the 10 individually numbered slide-type Programming Switches in one housing. All switch
functions are described below and on the label inside the front cover.
IQ Models (Inverter only)
Only Switch 2 of the Programming Switch is functional on IQ Models and is used to enable or
disable the Load Demand Feature.
IQC Models (Inverter/Charger)
All positions of the Programming Switch are functional on IQC Models.
Item Switch Number Left / Right Position Function
2.18.10 10 Add 64 (32) amps / 0 12Volt (24V) Bulk charge rate
2.18.9 9Add 32 (16) amps / 0 12Volt (24V) Bulk charge rate
2.18.8 8Add 16 (8) amps / 0 12Volt (24V) Bulk charge rate
2.18.7 7Add 8 (4) amps / 0 12Volt (24V) Bulk charge rate
2.18.6 690VAC / 77VAC Low AC Input Voltage switchover
tolerance value.
2.18.5 5Disable / Enable Disable Inverter operation. While the
inverter is disabled the battery charger
and transfer switch remain operational.
2.18.4 4Disable / Enable Disable Charger operation. The charger
will be disabled only if the inverter is
also disabled at dip switch 5. The
transfer switch remains operational.
2.18.3 3Start / Off Equalize Start
2.18.2 2Enable / Disable Load Demand
2.18.1 1Gel / Wet Battery Type
2.19 (19) 120 VOLT AC WIRING TERMINAL STRIP
CAUTION: BE SURE THE INVERTER IS TURNED OFF AND ALL EXTERNAL SOURCES
OF POWER ARE TURNED OFF BEFORE ACCESSING THE AC
INPUT/OUTPUT WIRING TERMINAL STRIP.
General
AC output and input wires will enter through the three (3) strain relief cable clamps located on the
right side of the unit.
The installer should verify that all AC circuits connected to the unit output are an insulated neutral
type as required by the National Electrical Code (NEC) article 551.

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IQ SERIES OWNERS MANUAL - 19 -
Vanner has designed the AC terminal block to accommodate spade or ring wire terminals and
wire size up to 10 gauge. Refer to local codes for correct AC wire size appropriate for your
inverter system and loads.
Ground Fault Circuit Interruption
Some installations require the installation of Ground Fault Circuit Interrupter (GFCI) type circuit
breakers in the AC distribution system. Because the output waveform of the inverter is not the
same as that supplied by a generator or the utility, some GFCI devices do not function properly.
The following list of GFCI circuit breakers have been tested and function properly with this
inverter system.
Table 6 - Approved Ground Fault Current Interrupters (GFCI Recommendations)
Manufacturer Manufacturer Part Number
Pass & Seymour 2091-S, 2091-SI, 1591-R, 1591-SI
Hubbell GF53521A
Bryant GFR53FTI
Goldstar GSM15SB
Square D Q0230GFI
General Electric THQL-1115GF
Electric Center (Siemens) ECB120GF
Westinghouse GFCB130
Murray (Siemens) MP120GF
IQ Models (Inverter only)
General AC1, AC2 and AC3 are all output circuits.
AC1 AC output circuit protected by 20 amp circuit breaker CB1.
AC2 AC output circuit protected by 15 amp circuit breaker CB2. (The built-in GFCI
receptacle receives its power from AC2.)
AC3 AC output circuit protected by 30 amp circuit breaker CB3.
IQC Models (Inverter/Charger)
General AC1 and AC2 are input circuits. AC3 is the only output circuit.
The purpose of having two separate 30 amp AC inputs is to allow full 30 amp AC
feed through capability while also allowing full battery charging capability. (The
charger can draw 27.5 amps when set to the maximum charge settings.)
When the external source has less than 60 amps of input power available be
careful that the battery charging power requirement combined with the AC loads
do not overload the AC source. See Automatic Power Management (APM) Panel
p/n D06791 to control the amount of input power used by the battery charger.
AC1 Primary AC input circuit protected by 30 amp circuit breaker CB1. Input voltage
and frequency are monitored for proper tolerance at all times on AC1. Input
power supplied to AC1 is used for battery charging and, when power is not
applied to AC2, for passthrough to AC3.

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AC2 Optional AC input circuit used only for passthrough. Input power supplied to AC2
will pass through only while input power is supplied to AC1. When input power is
supplied to both AC1 and AC2 then AC1 is used only for battery charging and
AC2 is used only for passthrough.
The passthrough circuit automatically switches away from AC1 when input power
is applied to AC2. The passthrough circuit automatically switches back to AC1
when input power is removed from AC2.
AC3 AC output circuit protected by 30 amp circuit breaker CB3. (The built-in GFCI
receptacle receives its power from AC3 via CB2.)
Notice:1. When the inverter/charger is connected to an external power source, the internal circuit
breakers (CB1, CB2 and CB3) are considered supplemental and do not qualify as “branch rated”
circuit breakers. External AC circuits carrying power to and from the unit must conform to
National Electric Code and any other applicable codes.
2. The Automatic Power Transfer Switch switches both hot and neutral. For safety purposes the
inverter output neutral (terminal #8) is connected to the inverter chassis ground only when the
unit is in inverter mode. This is a requirement of the National Electric Code for all systems of this
type that neutral should be connected to ground only at the source of AC power, which is the
inverter when in inverter mode. When an external AC input (shore power, generator) is available,
the IQC Transfer Switch system breaks the connection between neutral and inverter chassis
ground. The neutral-to-ground connection for passthrough power is then provided by the AC input
source.
2.20 (20) DC INPUT WIRING COMPARTMENT
All Models
The DC wiring enclosure is located on the top right side of the inverter and contains 5/16 “
diameter studs to permit connection of two cables from the battery.
BE AWARE that, as a large number of capacitors become charged upon completion of the DC
circuit, THERE WILL BE A LARGE SPARK when the last battery connection is made. The spark
is normal and will occur every time the batteries are connected.
2.21 (21) GROUND WIRING LUG
All Models
This is a compression type terminal requiring only a flat blade screwdriver to make the
connection. This terminal has been provided for safety to prevent possible shock hazards.
Connect a #8 AWG minimum size wire to this terminal and then to the vehicle chassis ground or
to earth ground.