WhisperPower Supreme Combi 230V Series User manual

24 VDC - 3000 VA | 24 VDC - 2000 VA | 230 VAC - 50 Hz
Enjoy Green Energy
Inverter/ Charger
Supreme Combi
whisperpower.com
User Manual

WhisperPower Inverter / Battery Charger
Inverter-Charger
230V Series
24V-2000W-40A (61242040)
24V-3000W-50A (61243050)
User Manual
Manual edition 2022.02.04

4 WhisperPower Inverter / Battery Charger
For safe and optimum performance, the Inverter-Charger must be used properly. Carefully
read and follow all instructions and guidelines in this manual and give special attention to the
CAUTION and WARNING statements.
PLEASE KEEP THIS MANUAL FOR FUTURE REFERENCE
Disclaimer
While every precaution has been taken to ensure the accuracy of the contents of this
guide, Whisper Power assumes no responsibility for errors or omissions. Note as well that
specications and product functionality may change without notice.
Important
Please be sure to read and save the entire manual before using your Whisper Power
Sinewave Inverter-Charger. Misuse may result in damage to the unit and/or cause harm
or serious injury. Read manual in its entirety before using the unit and save manual for
future reference.
Model Numbers
230VAC Series:
61242040 - EU Inverter-Charger 24V / 2000W / 40A - 230VAC (Schuko Socket - CEE 7/4)
61243050 - EU Inverter-Charger 24V / 3000W / 50A - 230VAC (Schuko Socket - CEE 7/4)
Service Contact Information
Email: [e-mail]
Web: www.whisperpower.com

WhisperPower Inverter / Battery Charger 5
IMPORTANT SAFETY INFORMATION
This section contains important safety information for the Sinewave Inverter-Charger. Before
using the unit, READ ALL instructions and cautionary markings on or provided with the unit,
and all appropriate sections of this guide.
The Sinewave Inverter-Charger contains no user-serviceable parts. See Warranty section for
how to handle product issues.
DANGER: Fire and/or Chemical Burn Hazard
Do not cover or obstruct any air vent openings and/
or install in a zero-clearance compartment.
DANGER: Failure to follow these instructions can result in death or serious injury
• When working with electrical equipment or lead-acid batteries, have someone
nearby in case of an emergency.
• Study and follow all the battery manufacturer’s specic precautions when
installing, using and servicing the battery connected to the inverter.
• Wear eye protection and gloves.
• Avoid touching your eyes while using this unit.
• Keep fresh water and soap on hand in the event battery acid comes in contact
with eyes. If this occurs, cleanse right away with soap and water for a minimum
of 15 minutes and seek medical attention.
• Batteries produce explosive gases. DO NOT smoke or have an open spark or re near
the system.
• Keep unit away from moist or damp areas.
• Avoid dropping any metal tool or object on the battery. Doing so could create a
spark or short circuit which goes through the battery or another electrical tool
that may create an explosion.
WARNING: Shock Hazard. Keep away from children!
• Avoid moisture. Never expose unit to snow, water, etc.
• Unit provides high voltage AC; treat the AC output socket the same as regular wall
AC sockets at home.
WARNING: Explosion hazard!
• DO NOT install the unit near ammable fumes or gases (such as propane tanks
or large engines).
• AVOID covering the ventilation openings. Always operate unit in an open area.

6 WhisperPower Inverter / Battery Charger
• Prolonged exposure to high heat or freezing temperatures will decrease the working life
of the unit.
• DO NOT connect AC power sources like utility power or generator to the AC outputs of
the unit. It will damage the unit and may cause re. Feeding AC to the AC output of the unit
is not covered by warranty.
• The 12V DC unit is designed for use on 12V House Battery System only. Use on a higher
house battery system will damage the unit and lead to unit explosion.
• The 24V DC unit is designed for use on 24V House Battery System only. Use on a lower
house battery system will damage the unit and lead to battery explosion
FCC and EMC INFORMATION
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules (for 120V models) and comply with the CE EMC Standard
on 230V models. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by turning the equipment o and
on, the user is encouraged to try to correct the interference by one or more of the following
measures:
• Re-orient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Consult the dealer or an experienced radio/TV technician for help.
LIMITATIONS ON USE
Do not use in connection with life support systems or other medical equipment or devices.

WhisperPower Inverter / Battery Charger 7
TABLE OF CONTENTS
1. INTRODUCTION 8
2. PRODUCT DESCRIPTION 8
3. UNDERSTANDING THE UNIT 9
4. INSTALLING THE UNIT 14
5. UNIT OPERATION 17
6. TROUBLESHOOTING 29
7. SPECIFICATIONS 30
8. WARRANTY 32

8 WhisperPower Inverter / Battery Charger
1. INTRODUCTION
Thank you for purchasing the Whisper Power Sinewave Inverter-Charger. With our state of the
art, easy to use design, this product will oer you reliable service by providing True Sinewave AC
power for your home, cabin, boat, RV or trailer and recharge your battery automatically when
utility AC is available. The Sinewave Inverter-Charger can run many AC-powered appliances
when you need AC power anywhere. The multi-stage battery charger will charge dierent types
of batteries. The built-in transfer switch will automatically switch the load to the battery power
when the utility power is interrupted.
This manual will explain how to use this unit safely and eectively. Please read and follow these
instructions and precautions carefully.
2. PRODUCT DESCRIPTION
The Sinewave Inverter-Charger includes the items listed below.
• Inverter-Charger base unit
• Multi-Function Display
• 7.5m (25’) RJ12 Display Cable
• Owner’s manual
Series Model No. Rating AC Output Types
Inverter Charger By-Pass
24V
230VAC
61242040 2000W 24V-40A 16A • EU: Schuko-CEE 7/4)
• Hardwire
61243050 3000W 24V-50A 16A

WhisperPower Inverter / Battery Charger 9
3. UNDERSTANDING THE UNIT
WARNING: It is recommended that all wiring be done by a certied technician or elec-
trician to ensure adherence to the applicable electrical safety wiring regulations and
installation codes. Failure to follow these instructions can damage the unit and could
also result in personal injury or loss of life.
CAUTION: Before beginning unit installation, please consider the following:
• The unit should be used or stored in an indoor area away from direct sunlight, heat, moisture or
conductive contaminants.
• When placing the unit, allow a minimum of 7.5cm (three inches) of space around it for optimal
ventilation.
Main Unit Front
Main Unit Rear
Digital Input Port
(120V Model)

10 WhisperPower Inverter / Battery Charger
2
1
3
4 5 6 7 8
Item
① Power indicator
② AC Output indicator
③ Status indicator
④
⑤
⑥
⑦
⑧
⑨
⑨
Display Panel socket
⑩
⑩⑩
BTS port
Multi-Function Display
Typical Wiring Block Diagram of Inverter-Charger:
A Battery Bank
• The use of deep cycle, lithium ion battery is highly recommended for power inverter
application
• For battery size, you need to identify how much and for how long the inverter has
to provide AC power to the loads (based on Amps x hour energy consumption). It is
recommended to purchase as much battery capacity as possible.
AC Load
Estimated run time on 24V Battery bank on 24V Input Models
24V/60AH 24V/120AH
50 W 22 hrs. 44 hrs.
100 W 11.5 hrs. 23 hrs.
200 W 5 hrs. 11 hrs.
500 W 2 hrs. 4 hrs.
1000 W 49 mins 2 hrs.
1500 W 27 mins 1 hr.
2000 W 15 mins 49 mins
2500 W N.R. 37 mins
3000 W N.R. 27 mins
N.R. - Not Recommended. Based on more than 2C discharged on battery capacity.
Estimated run times are for reference use only. Actual run times may vary on battery type used.
2
1
3

WhisperPower Inverter / Battery Charger 11
B DC Fuse or Circuit Breaker
• DC-rated fuse or DC-rated circuit breaker connected along the DC positive line is required.
Fuse/Circuit Breaker
Rating
24V 2000W System 24V 3000W System
150Adc 200Adc
• Based on the size of the Battery Bank, determine the overall short circuit current rating of
the battery bank from the battery manufacturer. The fuse or circuit breaker has to be able
to withstand the short circuit current that can be supplied by the battery bank.
• For battery banks with total capacity under 500Ah the most aordable ANL fuse type can
be used. Otherwise use Class-T type.
C DC Disconnect Switch
• A DC Disconnect Switch connected along the DC positive line is recommended. The
rating of the switch is with the same or higher rating of the selected fuse or circuit breaker.
Use ignition protected switches when required by local codes.
• This switch is used to disconnect the positive of the battery bank to the unit’s positive
terminal during maintenance/repair service, when not in use, or when troubleshooting.
It could also be an A/B/A+B/OFF type switch to select either one of the two or both
(paralleling) battery banks (if available).
D DC Input Cable
• All DC Input Wires should be insulated multi-strand low resistance wires.
• The DC wires must be copper and with minimum 105orating.
Model
Thinnest DC Input Wires Gauge Used
≤ 1.5 m / ≤ 5 feet
(Recommended)
≤ 2.25 m / ≤ 7.5 feet ≤ 3 m / ≤ 10 feet
24V 2000W series 55 mm2/
AWG # 1/0
70 mm2/
AWG # 2/0
95 mm2/
AWG # 3/0
24V 3000W series 70 mm2/
AWG # 2/0
95 mm2/
AWG # 3/0
120 mm2/
AWG # 4/0
The typically recommended wire length is limited to 5 feet or less for each of the positive and the nega-
tive. For longer wires, a proportionally thicker gauge is required to compensate for additional voltage drop
CAUTION: These guidelines assume you are using the DC supplied cable
and fuse sizes recommended in this manual. The use of a thinner gauge
in the DC wires may cause the inverter to trigger the under-voltage shut
down under heavy load conditions. It may also melt the wire insulation
and catch re, resulting in death or serious injury. The choice of the wire
gauge should also match or exceed the ampacity rating of the DC fuse
and holder being used.

12 WhisperPower Inverter / Battery Charger
E Chassis Ground
DANGER: The unit chassis has to be grounded properly before use. Never operate
the unit without proper grounding. Failure to do so will result in death or serious
injury.
Model Thinnest Wire Gauge Used
Recreation Vehicle Marine
24V 2000W series 10 mm2 / AWG # 8 35 mm2/ AWG # 2
24V 3000W series 55 mm2/ AWG # 1/0
- These guidelines assume you are using the DC supplied cable and fuse sizes recommended in this manual.
If you are using dierent sizes, refer to the applicable installation code for the DC grounding detail.
- In marine applications, the main AC-DC ground bonding may require galvanic isolators to avoid
galvanic corrosion. Check your local electrical codes (i.e. NEC, UL, ABYC).
F AC Input Source
An AC source is usually grid power or an AC Generator. The acceptable AC Input voltage
range and frequency are as shown:
Model Acceptable AC Input Voltage
Range
Acceptable AC Input Frequency
Range
230VAC series 180 - 260 VAC 30 - 100 Hz
An automatic or manual AC source selector switch can be used to switch between
the multiple sources of shore power to the unit. Usually, the AC Main Panel includes
a main circuit breaker that serves as over-current protection and as a disconnect
for the AC shore power supply line. Additional AC circuit breakers serve individual
circuits and one of the AC circuit breakers will serve the unit. During By-Pass mode,
the AC Input source will serve the AC Output Load and also the AC Input current for
the charger when it is used to charge the battery.
Model AC Input Circuit Breaker to
serve the unit AC Input Wire
230VAC series 16A (maximum) 2.5 mm2/ #14 AWG (minimum)
- Follow the electrical and/or building code when you choose AC Branch Breaker and AC Input wire Size.
Connect the unit to any AC Input Source
- Smaller size AC Input wire can be used when a lower amperage rated AC Input Circuit Breaker is used
from upstream to feed the unit.
The unit is designed to accept non-Sinewave AC Input Source supplied by a
generator.
G AC Hardwire Output
An AC Sub-Panel is recommended to incorporate an AC output circuit breaker and breakers
for individual load circuits. Use the same wire size as used for the AC Input Wire.

WhisperPower Inverter / Battery Charger 13
H AC Output Socket and I AC Output Thermal Breaker:
A single AC Output socket is provided for direct AC output from the unit. An overcurrent
protective device (thermal breaker) is connected in series with the AC Output Socket to
avoid excessive current being drawn from it.
Model AC Output Socket Type AC Output Thermal Breaker
230VAC series EU: Schuko-CEE 7/4) 16A
Model
By-Pass Mode Current (Maximum) Inverter Mode Current (Maximum)
Total AC
Output
AC
Output
Hardwire
AC
Output
Socket
Total AC
Output
AC
Output
Hardwire
AC
Output
Socket
2000W/230VAC 16A 16A EU: 16A* 8.7A 8.7A EU: 8.7A**
3000W/230VAC 16A 16A EU: 16A* 13A 13A EU: 13A**
* Limited by AC Output Thermal Breaker connected in series with the AC Output Socket.
** Limited by Inverter maximum AC Output Current during inverter mode.
J Display Port
The port is used to connect to the Multi-Function Display of the unit.
K Multi-Function Display
The display is used to provide unit information and for unit setting.
L BTS Port
The port is used for connecting to the optional Battery Temperature Sensor. The thermistor
installed inside the ring terminal is used to measure the battery terminal temperature and the
unit will make compensation on battery charging voltage for battery charging.
M Digital Input Port, Program Port, Can-BUS Port
• Digital Input Port
This port is used for connecting to a slave contact of an external Transfer Switch or Relay
to control the charger input current limit.
• Program Port
This USB port is for system rmware upgrade use only. This CANNOT be used for
charging Smartphones or USB powered devices. Mis-use of this port can potentially
damage the unit and is not covered by the warranty. This USB type A port is located on
the Inverter-Charger and an extra port that shares the same function is also located on
the side of the Multi-Function Display.
• CAN-BUS Port
This is for unit communication through the CAN interface. Mis-use on this port can
potentially damage the unit and is not covered by the warranty.

14 WhisperPower Inverter / Battery Charger
4. INSTALLING THE UNIT
WARNING: Explosion hazard!
• DO NOT install the unit near ammable fumes or gases (such as propane tanks or
large engines).
• AVOID covering the ventilation openings. Always operate unit in an open area.
Choosing the location:
The unit should only be installed in locations that meet the following requirements:
• Do not allow water or other uids to drip or splash on the unit.
• Environment temperature should be between -20 °C and 40 °C (-4 °F and 104 °F)
• Allow at least 7.5cm (three inches) of clearance around the unit. The more clearance for
ventilation around the unit, the better the performance.
Mounting the Unit:
• Choose an appropriate mounting location.
• The unit can be mounted in any direction.
• Use the mounting template below to mark the positions of the mounting screws.
• Drill the 4 mounting holes and place the unit in position and fasten the unit to the
mounting surface.
DC Input Connection:
WARNING: Electrical Shock Hazard
The unit ‘On/O’ switch does not disconnect the DC power from the battery. Use the DC
Disconnect Switch or disconnect the DC input cables to disconnect the DC power from the
battery before working on any circuits connected to the unit. Failure to follow these instructions
can result in death or serious injury.
CAUTION: Reversing the DC Input terminals will damage the unit and it cannot be
repaired. Damage caused by reverse polarity connection is not covered by the warranty.

WhisperPower Inverter / Battery Charger 15
IMPORTANT: Field wiring DC terminals tightening torque 12-13 Nm
• Connect a negative DC input cable between the unit DC negative terminal and battery
negative terminal.
• Make sure the Disconnect Switch is in the OFF position. Connect a positive DC input cable
between the unit DC positive terminal and one terminal of the Disconnect Switch.
• Connect another DC input cable between the other terminals of the Disconnect Switch
to one side of the terminal of the fuse holder or DC rated circuit breaker (OFF position).
• Connect another DC input cable between the other terminal of the fuse holder or DC
rated circuit breaker to the battery positive terminal.
• Note: For Marine application, either the DC fuse or DC rated circuit breaker needs to be
installed within 7 inches (17.8cm) from the battery positive terminals.
• Install the selected fuse to the fuse holder.
Chassis DC Ground Connection:
• Connect the grounding wire to the unit’s Chassis DC Ground Lug located near the DC
Input terminal and the other side of the cable to the common grounding point.
• For a Recreation Vehicle, the common ground point is usually the vehicle chassis or a
dedicated DC ground bus.
• For Marine, the common ground point is usually the DC ground bus or engine negative bus .
Note: Do not use the Chassis DC Ground Lug for your AC Grounding, For AC Grounding,
see AC Wiring instructions for more details.
AC Input and AC Output Hardwire Connections:
WARNING:
Before making any AC Input and AC Output Hardwire connection, please be sure the
AC Input Source is not energized and the DC disconnect switch is switched OFF.
Please double check the location of the AC input connector located inside the
wiring compartment. Misconnecting to the AC output connector inside the same
compartment will damage the unit and may cause re.
Remove the AC compartment cover by unscrewing the four screws located at the front of the
AC compartment cover.
For AC Input Connections:
• Insert the AC Input cable through the AC Input Strain relief aon the unit.
• Connect the AC Main Panel AC Ground wire to the AC Input Ground terminal son the unit.
If a solid ground wire is used, the wire can be connected directly under the screw head. If a
stranded ground wire is used, ring terminals must be used
• Connect the AC Main Panel AC Live or Hot wire to unit’s AC Input ‘L’ Live or ‘H’ Hot’ terminal t .
• Connect the AC Main Panel AC Neutral wire to unit’s AC Input Neutral ‘N’ terminal u.
• Tighten the strain relief to secure the AC Input wire.

16 WhisperPower Inverter / Battery Charger
For AC Output Hardwire Connections:
• Insert the AC Input cable through the AC Output Strain relief bon the unit.
• Connect the AC Sub-Panel AC Ground wire to the AC Output Ground terminal xon the unit.
If a solid ground wire is used, the wire can be connected directly under the screw head. If a
stranded ground wire is used, ring terminals must be used
• Connect the AC Sub-Panel AC Live or Hot wire to unit’s AC Output ‘L’ Live or ‘H’ Hot terminal w .
• Connect the AC Sub-Panel AC Neutral wire to unit’s AC Output Neutral ‘N’ terminal v.
• Tighten the strain relief to secure the AC Input wire.
IMPORTANT: (For 230VAC models only)
The unit’s AC Output Hardwire connector is congured for use with external RCD
(Residual Current Device) or GFCI (Ground Fault Circuit Interrupter) connected to the AC
Output of the unit. The AC output neutral pin from the Inverter section before the transfer
switch is bonded to the unit’s chassis through the Ground Screw as shown. This Neutral
bonding is required in order to have the external RCD/GFCI to work properly.
Safety standards in the USA and elsewhere demand this Neutral-to-Ground bonding.
If RCD/GFCI is not required for your installation, the Ground Screw can be removed, and
this will un-bond the AC output neutral pin of the inverter section to the unit’s chassis.
Note: This Ground Screw (either in used or not) will not have any eect between unit’s
AC Input Neutral and chassis.
Multi-Function Display Connection:
• Route the RJ12 cable from the unit to your desired location for the Multi-Function Display and
connect one end of the cable to the main unit Display Port and the other end of the cable to
the Display Panel socket located at the rear panel of the Multi-Function Display.
BTS (Battery Temperature Sensor) Connection (optional):
To provide more accuracy and precision on battery voltage charging against battery temperature,
a BTS (sold separately) can be used.
• Connect the RJ12 end of the BTS cable to the BTS Port on the main unit.
• Install the ring terminal end of the BTS cable to the negative terminal of the battery bank.
Digital Input Port Connection (optional):
If a power selection switch or relay is present, the auxiliary contact may be used to provide a
dierently programmed current limit when in generator mode. Connect the Faston wired
connection through the auxiliary contact to a fused 12 V connection at the battery

WhisperPower Inverter / Battery Charger 17
5. UNIT OPERATION
The unit is preset with factory default settings and will fulll the basic needs for inverter-
charger operation. The display is used to provide information about the unit status and the
unit function can be customized through the Display.
Once the unit function is customized, the display can be removed if desired, as the unit can
run without it.
Understanding the Indicator/Push Button/Unit Functions
Power AC Out Status
On/Off
BTS
Remote
d
hi
p
j
k
g
ef
2
1
3
4 5 6 7 8
Item
① d Power indicator
② e AC Output indicator
③ f Status indicator
④ g
⑤
⑥
⑦
⑧
hDisplay port
iBTS port
jDigital input port
k Program port
p CAN BUS port
Indicator Status Function
Power ON Unit is power ON
AC Output ON AC Output Switch is turned ON and AC is available at the
Output Socket
OFF AC Output Switch is turned OFF and AC is not available at
the Output Socket
Status Green AC Output is running from Utility
Green (Flash) AC Output is running from utility and battery charger is
charging the battery
Amber AC Output is running from Inverter
Amber (Flash)
Utility is detected and is under verication. AC Output is still
running from Inverter and will switch to Utility in about 10
seconds.
Red Error/Warning occurs. Display will show Error or Warning code
Normal Operation
When unit is On, the Multi-Function display shows Battery Voltage ‘V’.
Pressing any button will illuminate the backlighting of the display for about 10 seconds.
‘Power’ button (Same function as the green ‘On/O’ push button on the main unit):
- To turn the inverter ON: press and hold until hearing the beep (in about 1 sec.).
Display turns on and shows ‘-- -- --‘, all icons turn ON, followed by the revision levels

18 WhisperPower Inverter / Battery Charger
of the main unit ‘Rx.x’ and then the Display revision levels ‘rx.x’ (where x = any number).
- To turn the inverter OFF: press and hold until hearing the beep (in about 1 sec.). Display
turns o and the unit cannot be turned on again but after about 3 sec (when hearing the
deactivation of the internal relays).
Note: When AC Input is available, this ‘Power’ button cannot be used to turn OFF the unit.
‘Menu/Set’ button:
- Press once to view unit setting on display. See more details on
Viewing and Change Unit Setting section.
and button:
- The or button can be used to scroll through DC Current ‘A’,
AC Output Power ‘KW’ and Battery Voltage ‘V’.
- Press and hold and buttons together for 2 seconds to show
rmware revision numbers.
‘Escape’ button:
Press and hold for 5 seconds to turn OFF or ON the AC Output Switch
(use this button as an AC Output ON/OFF function for the Output Socket).
Viewing and Change Unit Setting
- When unit is in normal operation mode, Press ‘Menu/Set’ button once to view unit setting
as listed on the Unit Setting Function Chart.
- Theor button can be used to scroll through each unit setting. If a particular setting
needs to be modied, press and hold the ‘Menu/Set’ button for 5 seconds and the set
parameter will ash on the display. Use theor button to scroll through the available
settings. Once the desired setting is chosen, press and hold the ‘Menu/Set’ button until a
beeping sound occur and the new setting is saved.
- Press ‘Escape’ button once to return back to Normal Operation. (If none of the button is
triggered for about 5 seconds, display will also return back to Normal Operation.
Unit Setting Function Chart
Unit Setting Display Description and Available Setting
AC Input
Shore Power
8
230 Vac WP Models: Range: 4,6,8,10,12,13,14,16A. (Default 8 A).
SPW= Shore Power (AC in Display)*
Inverter : Use as Inverter only. No By-Pass functions.
(Default): Auto Backup. Inverter automatically turns ON when AC
Blackout.
: Manual Backup. When AC Blackout occurs, Inverter has to be
manually turned ON by using the ‘Power’ button’ on either the
Display panel or the ‘Power’ button on the Main unit
: Inverter function is disabled. No AC backup when AC Blackout.

WhisperPower Inverter / Battery Charger 19
Load Sense (Default):Continuous AC Output when inverter is ON
10 : Continuous AC Output when inverter is ON and AC load is > 10W
15 : Continuous AC Output when inverter is ON and AC load is > 15W
20 : Continuous AC Output when inverter is ON and AC load is > 20W
25 : Continuous AC Output when inverter is ON and AC load is > 25W
Battery Low
Disconnect 21.0
Battery Low Disconnect Voltage selectable ranges is 21.0 - 24.0V (0.2V steps)
(Default voltage is set to 21.0V)
Battery Low
Warning 22.0
Battery Low Warning Voltage selectable ranges is 22.0 – 25.0V (0.2V steps)
(Default voltage is set to 22.0V)
Battery Low
Recovery 24.0
Battery Low Recovery Voltage selectable ranges is 23.0 - 26.0V (0.2V steps)
(Default voltage is set to 24.0V)
Audible
Buzzer (Default):Buzzer is enabled. Unit buzzes when Warning or Error
occurs.
: Buzzer is disabled. Unit does not buzz when Warning and Error occur.
AC Charger (Default):AC Charger is enabled. Charge battery when AC Input is
available.
: AC Charger is disabled. No battery charging when AC Input is available.
Battery Type (Default): GEL Battery, default Bulk Charge/Float Voltage is 28.4V/27.6V
: AGM Battery, default Bulk Charge/Float Voltage is 28.6V/26.8V
: Flooded Battery, default Bulk Charge/Float Voltage is 28.8V/27.0V
: Lithium Battery, default Bulk Charge/Float Voltage is 27.8V/27.0V
: Program, default Bulk Charge/Float Voltage is 27.6V/26.4V
: Power Supply Mode, Default Power Supply Voltage 27.6V
Bulk Current
50
24V/3000W Models: Selectable Ranges 50A, 40A, 30A, 20A, 10A (Default 50A)
24V/2000W Models: Selectable Ranges 40A, 30A, 20A, 10A, 5A (Default 40A).
Bulk/Absorp-
tion Voltage 28.4
Bulk/Absorption voltage is based on the battery type chosen. All battery
types have selectable ranges of 27.6 – 29.6V. (Default on GEL Battery is
28.4V)
Absorption to
Float Current 5
12V/3000W Models: Selectable Range: 8A, 6A, 5A, 3A, 2A (Default 5A).
12V/2000W Models: Selectable Range: 6A, 5A, 4A, 3A, 2A (Default 4A).
Float Voltage
27.6
Float voltage is based on the battery type chosen. All battery types have
selectable ranges of 26.0 – 28.0V. (Default on GEL Battery is 27.6V)
Recharge
Voltage 25.6
Battery Recharge Voltage Selectable Range: 25.6 to 28.0V (0.2V step)
(Default on GEL, AGM, Flooded, PGM battery setting is 25.6V and Li
setting is 26.4V).

20 WhisperPower Inverter / Battery Charger
Battery
Temperature : High > 35 °C
(Default): Normal 15 - 35°C
: Low < 15°C
AC Input
Generator
Power
16
230 Vac Models: Range: 4,6,8,10,12,13,14,16A (Default 16A)
GPW= Generator Power (AUX in Display)*
Factory
Default Select to reset all settings to default.
* Circuit Breaker setting representation: SPW (Shore Power Wattage) for AC input power when
no signal on Digital Input.
GPW (Generator Power Wattage) for AUX input, when +12V on
Digital Input
Understanding the Display Icons during Unit Operation
Icons Meaning
Solid: Unit is running in Battery Charger mode and is charging the battery. Input current limit
set under SPW is applicable when on generator, symbol changes to AUX solid, and current
limit set under GPW is applicable.
Solid: Unit is running in By-Pass mode. (The transfer switch is switched to AC Input Source).
- AC Output power is running from AC Input Source.
- AC Output is available at both the AC Output socket and the AC Output Hardwire terminal
if AC Output switch is turned On (indicated by AC Output indicator located on the left side
of the Display and also the Main unit being On).
Note: Press and hold the ‘Escape’ button on the Display panel for 5 seconds to toggle AC
Output switch On/O.
Solid: AC Input is available and is in the operating range.
Flashing: AC Input is detected and is under verication before switching to By-Pass mode.
This normally takes about 10 seconds.
Solid: Unit is running in Battery Mode (The transfer switch is switched to Inverter)
- AC Output power is running from the inverter
- AC Output is available at both the AC Output socket and the AC Output Hardwire terminal
if AC Output switch is turned On (indicated by AC Output indicator located on the left side
of the Display and also the Main unit being On).
Note: Press and hold the ‘Escape’ button on the Display panel for 5 seconds to toggle AC
Output switch On/O.