Maruson 850 User manual

Power Home Inverter
850/1.5K
V. 2.1
1. Introduction
This robust inverter is designed to power your home appliances or precious electronics. It also
can accept wide input voltage to generate stable and pure power source to power downstream
AC loads. Based on different types of loads, this inverter can provide pure and stable power
either to house appliances or to sensitive personal computers via selectable operation modes.
It is a brilliant choice for home owners or small office users in the unstable power area.
2. Product Overview
Front View:
Model with LED panel: Model with LCD panel:
Power Switch
Display indication (please see the Operation section for the details)
Back View：
Universal Type:
Model with input power cord Model with AC terminal
South Africa Type
Model with input power cord Model with AC terminal
Maruson Technology Corporation
18557 East Gale Avenue
City of Industry, California 91748, U.S.A.
Tel: [phone] Fax: [phone] Toll Free: 1-888-MARUSON
E-Mail: [e-mail]
Website: www.MarusonUSA.com

Schuko Type
Model with input power cord Model with AC terminal
Input voltage range selector External battery connector
AC input Charge current selector (10A or 20A)
Input breaker Output receptacles
3. Important Safety Warning (SAVE THESE INSTRUCTIONS)
Before using the inverter, please read all instructions and cautionary markings
on the unit, this manual and the batteries.
General Precaution-
CAUTION! The unit is designed for indoor use. Do not expose this unit to rain, snow or
liquids of any type.
CAUTION! To reduce risk of injury, only use qualified batteries from qualified distributors or
manufacturers. Any unqualified batteries may cause damage and injury. Do NOT use old or
overdue batteries. Please check the battery type and date code before installation to avoid
damage and injury.
WARNING! It's very important for system safety and efficient operation to use appropriate
external battery cable. To reduce risk of injury, external battery cables should be UL certified
and rated for 75°C or higher. And do not use copper cables less than 8AWG.
WARNING! It's very important for system safety. AC input cable should be UL certified and
rated for 105°C or higher. And do not use copper cables less than 18AWG.
CAUTION! Do not disassemble the inverter. Contact with the qualified service center when
service or repair is required.
WARNING! Provide ventilation to outdoors from the battery compartment. The battery
enclosure should be designed to prevent accumulation and concentration of hydrogen gas at
the top of the compartment.
CAUTION! Use insulated tools to reduce the chance of short-circuit when installing or
working with the inverter, the batteries, or other equipments attached to this unit.
CAUTION! For battery installation and maintenance, read the battery manufacturer's
installation and maintenance instructions prior to operating.
Personnel Precaution -
CAUTION! Careful to reduce the risk or dropping a metal tool on the batteries. It could spark
or short circuit the batteries and could cause an explosion.
CAUTION! Remove personal metal items such as rings, bracelets, necklaces, and watches
when working with batteries. Batteries can produce a short circuit current high enough to
make metal melt, and could cause severe burns.
CAUTION! Avoid touching eyes while working near batteries.
CAUTION! Have plenty of fresh water and soap nearby in case battery acid contacts skin,
clothing, or eyes.
CAUTION! NEVER smoke or allow a spark or flame in vicinity of a battery.
CAUTION! If a remote or automatic generator start system is used, disable the automatic
starting circuit or disconnect the generator to prevent accident during servicing.
4. Specifications
MODEL
850
1.5K
CAPACITY
850VA/600W
1500VA/1050W
INPUT
Voltage
230VAC
Voltage Range
180-260 VAC (For personal computer)
100-300 VAC (For home appliances)
OUTPUT
Voltage Regulation (Batt. Mode)
230VAC ± 10 %
Transfer Time
20 ms typical
Waveform
Simulated Sine Wave
BATTERY
Battery Voltage
12 VDC
24 VDC
Floating Charge Voltage
13.7 VDC ± 2%
27.4 VDC ± 2%
Maximum Charge Current
10 A or 20 A
Recommended Battery Capacity
100 Ah –200 Ah
PHYSICAL
Dimension (DxWxH) mm
289 x 290 x 127
Net Weight (kgs)
9
12
5.Installation
NOTE: Before installation, please inspect the unit. Be sure that nothing inside the package is
damaged.
Assemble AC Input Cable (Only available for the unit with AC terminal)
Step 1- Take away the cover of AC input connector.
Step 2- Connect an input power cord to AC input terminal. Following AC input polarity (L, N,
GND) guide printed near the terminal! (Refer to below chart)
Conventions used:
WARNING! Warnings identify conditions or practices that could result in personal injury;
CAUTION! Caution identify conditions or practices that could result in damaged to the
unit or other equipment connected.

WARNING! Please use the appropriate AC input cable. Please refer to Important Safety
Warnings Section for the details.
Step 3- Screw tightly the AC input power cord.
Connect External Battery
Step 1- Install a DC Breaker in a positive battery line. The rating of the DC Breaker must be at
least 60Amp to guarantee safe operation without interruption. Keep the DC breaker off. (see
Fig. 1)
Step 2- Connect battery cables to the external batteries. To have better performance, the
recommended battery capacity is 100Ah –200 Ah.
Following battery polarity guide printed near the battery terminal to connect external batteries!
RED cable to the positive terminal (+);
BLACK cable to the negative terminal (-)
Note: For the user operation safety, we strongly recommend that you should use tapes to
isolate the battery terminals before you start to operate the unit. When connecting to external
batteries, do not cause any short circuits.
1) Single battery connection (Refer to Fig. 1): When using a single battery, its voltage
must be equal to the Nominal DC Voltage of the unit (see below Table 1).
2) Multiple batteries in series connection (Refer to Fig. 2): All batteries must be equal
in voltage and amp hour capacity. The sum of their voltages must be equal to the nominal DC
Voltage of the unit.
Fig 2
Note: when connecting batteries in series connection, it’s necessary to use battery wires at #8
or above.
3) Multiple batteries in parallel connection (Refer to Fig. 3): Each battery's voltage
must be equal to the Nominal DC Voltage of the unit.
Fig 3
Note: when connecting batteries in parallel connection, it’s necessary to use battery wires at
#10 or above.
Step 3- Make sure to connect the polarity of battery side and the unit correctly.
Positive pole (Red) of battery to the positive terminal (+)of the unit.
Negative pole (Black) of battery to the negative terminal (-) of the unit.
Step 4- Take the DC breaker on.
Connect to Utility and Charge
Plug in the AC input cord to the wall outlet. The unit will automatically charge the connected
external battery even though the unit is off.
6. Operation
Power On/Off
Once the inverter has been properly installed, press the power switch to turn on the unit. The
unit will work automatically. When press the power switch again, the unit will be turned off.
WARNING! The unit may have output power when connected to the utility, even though it is
powered off. To completely cut off the output power, please switch off the unit and disconnect
the unit from the utility.
Input Voltage Range Selector
a). 180V-260V: setting for precious electronic devices
If you select this mode, the unit's input utility range will be 180~260VAC as normal home
UPS. If the utility is higher or lower than this range, the unit will transfer to inverter mode
automatically. And you can connect the computer systems or other precision home
equipment when you select this operation mode.
b). 100V-300V: setting for home appliances
If you select this mode, the unit's input utility range will be extended to 100~300VAC. If the
utility is higher or lower than this range, the unit will transfer to inverter mode automatically.
So, you can connect the home equipments, such as light bulb, fluorescent tube, fan, or TV
on this mode.
Caution!! If you select the home appliance mode and connect the computer to the output of
the unit, the computer may reboot if the input voltage is too low to be accepted.
Charging Current Selector
a) High: setting battery charging current at 20A
b) Low: setting battery charging current at 10A
Fig. 1
Table 1
Model
Nominal Battery DC
Voltage
850
12 VDC
1.5K
24 VDC
DC breaker

Model with LED Indicator & Audible Alarm
There are three indicators (Green/Red/Yellow) in the front panel of the unit.
Status
LED Indicator
Alarm
The unit is in Line mode.
Green LED on.
Off
The unit is in Line mode and
charging battery.
Green LED on and yellow LED
flashes every 3 seconds.
Battery mode
Yellow LED flashes every 10
seconds.
Off
Off-mode charging.
Yellow LED flashes every 3
seconds.
Off
Overload warning
Yellow LED flashes every 0.5
second
Sounding every 0.5
second
Battery low warning
Yellow LED flashes every 0.5
second
Sounding every second
Output is short circuited.
Yellow LED and red LED are
on.
Continuously sounding.
The unit will shut down
after it’s in fault mode
for 15 seconds.
Overload fault
Output voltage is too low or
too high.
Battery bad
Red LED is on and Green LED
flashes every 0.5 seconds.
Battery is overcharging.
Red LED and Green LED are
on.
Battery weak.
Red LED flashes every 0.5
second.
Model with LCD Display & Audible Alarm
Status
LCD Display
Alarm
Line mode
Off
Line mode with charging
battery.
and flashes
Off
Battery mode
Off
Off-mode charging
and flashes
Off
Fault mode
Fault code will be displayed.
Output fault: F0
Overload: F1
Over-charging: F2
Battery bad: F3
High output voltage: F4
Low output voltage: F5
Battery weak: F6
Continuously sounding.
The unit will shut down
after it’s in fault mode for
15 seconds.
The unit is overload.
The mark will flash
every second.
Battery weak at battery
mode.
The mark will flash every
second.
Load level indicator: Battery capacity indicator:
Display
Load Level
Display
Battery Capacity
75%~100%
battery voltage ≥12.5V (25V)
50%~75%
12.5V (25V)> battery voltage ≥
11.5V (23V)
25%~50%
11.5V (23V)> battery voltage ≥
11.0V (22V)
0%~25%
battery voltage < 11.0V (22V)
7. Trouble Shooting
Use the table below to solve minor problems.
Problem
Possible Cause
Solutions
Utility power is normal
but the unit is in
battery mode.
AC input power cord is not
connected well.
Check AC input power connection.
Input breaker is activated.
Reset the input breaker.
When power fails, the
backup time is
shorten.
The unit is overload.
Remove some non-critical loads.
Battery voltage is too low.
Charge the unit at least 8 hours.
Battery capacity is not full
even after charge the unit for
at least 8 hours.
Check the date code of the battery. If
the batteries are too old, replace the
batteries.
Nothing display on the
front panel when the
utility power is
normal.
The unit is not turned on.
Press power switch to turn on the
unit.
Battery is not connected well.
Check the external battery cable and
terminal. Make sure all the battery
connections to the unit are all correct.
Battery defect.
Replace the batteries.
Battery voltage is too low.
Charge the unit at least 8 hours.
The unit is in fault and
restart circularly.
The unit is overload.
Verify that the load matches the
capability specified in the
specification.
Output is short circuited.
Check the loads and remove loads
which cause short circuit.
If there is any abnormal situations occur, which doesn't list above, please call the service
people immediately for professional examine.