SK Series Pure Sine Wave Inverter User`s Manual

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SK Series Pure Sine Wave Inverter User`s Manual | Manualzz

SK Series

Pure Sine Wave Inverter

User’s Manual

Table of Contents

1. Important Safety Information.………………………………………………

1-1 General Safety Precautions……………………………………………

1-2 Battery Precautions………………………..…………………………..

2. Features………………………………………………………………………...

2-1 Application……………………………………………………………….

2-2 Electrical Performance…………………………………………………

2-3 Mechanical Drawings…………………………………………………..

2

3~7

8~9

3. Introduction…………………………………………………………………… 10

3-1 Front Panel operation….……………………………………………... 10~13

1

2

1

1

3-2 Rear Panel operation.………………………………………………… 14~15

3-3 Protections Features…………………………………………………… 15

3-4 Installation……………………………………………………………….

16

3-5 Making DC Wiring Connections ……………………………………... 17~19

3-6 AC Safety Grounding…………………………………………………..

3-7 Inverter Operation………………………………………………………

4. Troubleshooting guide………………………………………………………

5. Maintenance……………………………………………………………………

6. Warranty………………………………………………………………………..

20

21

22

23

23

1. Important Safety Instructions

WARNING!

Before using the Inverter, read and save the safety instructions.

1-1. General Safety Precautions

1-1-1. Do not expose the 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 Inverter in a zero-clearance compartment.

Overheating may result.

1-1-2. To avoid a risk of fire and electronic shock, make sure that existing wiring is in good electrical condition and not undersized.

Do not operate the Inverter with damaged or substandard Wiring.

1-1-3. There are some components in the inverter can cause arcs and sparks.

To prevent from fire or explosion, do not put batteries, flammable materials, or anything should be ignition–protected around the inverter.

1-2. Precautions When Working with Batteries

1-2-1. If battery acid contacts skin or clothing, you shall wash it out with soap and water immediately. If battery acid contacts your eyes, you shall wash it out with cold running water for at least 20 minutes and get medical attention immediately.

1-2-2. Never smoke or make a spark or flame in the vicinity of the battery or the engine.

1-2-3. Do not drop a metal tool on the battery. The resulting spark or short-circuit on the battery of other electrical part may cause an explosion.

1-2-4. Remove personal metal items such as rings, bracelets, necklaces, and watches when operating with a lead-acid batteries.

Doing so may cause short circuit and very high temperature, which can melt metal items and even burn you.

1

2. Features

Pure sine wave output (THD < 3%)

Output frequency:50 / 60Hz switch selections

Input & output fully isolated design

Power Saving Mode to conserve energy

High efficiency 89~94%

Driving highly reactive & capacitive loads at start moment

Tri-Color indicators show input voltage & output load level

Loading controlled cooling fan

Advanced microprocessor

Protection:Input low voltage Overload Short circuit

Low battery alarm Input over voltage Over temperature

2-1. Application

2-1-1. Power tools – circular saws, drills, grinders, sanders, buffers, weed and hedge trimmers, air compressors, etc.

2-1-2. Office equipment – computers, printers, monitors, facsimile machines, scanner, etc.

2-1-3. Household appliances – vacuum cleaners, fans, fluorescent and incandescent lights, shavers, sewing machines.

2-1-4. Kitchen appliances – coffee makers, blenders, ice markers, toasters, etc.

2-1-5. Industrial equipment – metal halide lamp, high – pressure sodium lamp, etc.

2-1-6. Home entertainment electronics – television, VCRs, video games, stereos, musical instruments, satellite equipment, etc.

2

3

2-2. Electrical Performance

Specification Model No.

C o n

Item it n u o u s O u t p u t P o w e r

M a x i m u m O u t p u t P o w e r

S u r g e R a it n g ( M a x .

)

SK700-112 SK700-124 SK700-148 SK700-212 SK700-224 SK700-248

7 0 0 W

7 7 0 W

1 4 0 0 W

Input voltage

Output Voltage

Frequency

(Switch Selections)

O u t p u t W a v e f o r m

Efficiency (full load) Max. *1

No Load Current Draw (Max.)

12V

89.0%

1.25A

Stand-By Current Draw (Max.) 0.25A

Input Voltage Regulation

10.5-15

VDC

Input Level Indicator

24V

P

91.0%

0.64A

0.15A

21.0-30

VDC u r e S i

48V

100 / 110 / 120V +/- 5%

12V 24V 48V

220 / 230 / 240V +/- 3%

50 / 60Hz +/- 0.05% n e W

92.0%

0.31A

0.08A

42-60

VDC a v e ( T H D

91.0%

1.20A

0.25A

10.5-15

VDC

< 3 % )

93.0%

0.60A

0.15A

21.0-30

Red / Orange / Green LED

VDC

94.0%

0.28A

0.08A

42-60

VDC

Load Level Indicator

F a li u r e I n d i c a t o r

Protection

R e d L E D

Overload, Short Circuit, Reverse Polarity (Fuse),

Over / Under Input Voltage, Over Temperature.

R e m o t e C o n t r o l U n i t

Safety Cert.

C R 6 / C R 8 O p it o n a l

Meet UL458 EN60950-1

E M C F C C C l a s s A

EN55022: 1997

EN55024: 1997

EN61000-3-2: 1998

EN61000-3-3: 1995 e-mark e13 022986

Operating Temperature Range

Storage Temperature Range

C o o il n g

Dimensions

W e i g h t

0 - 40

L o a d i n g c o n t r o ll e d c o o il n g f a n

273(L)*179(W)*71.5(H)mm / 10.75(L)*7.05(W)*2.81(H) Inch

2 .

7 k g / 5 .

4 L b s .

Note: The specifications are subject to change without notice.

Specification Model No.

C o n

Item it n u o u s O u t p u t P o w e r

M a x i m u m O u t p u t P o w e r

S u r g e R a it n g ( M a x )

SK1000-112 SK1000-124 SK1000-148 SK1000-212 SK1000-224 SK1000-248

1 0 0 0 W

1 1 0 0 W

2 0 0 0 W

Input voltage

Output Voltage

Frequency

(Switch Selectable)

O u t p u t W a v e f o r m

Efficiency (full load) Max. *1

No Load Current Draw (Max.)

12V

89.0%

1.43A

Stand-By Current Draw (Max.) 0.25A

Input Voltage Regulation

10.5-15

VDC

Input Level Indicator

24V

P

92.0%

0.75A

0.15A

21.0-30

VDC u r e S i

48V

100 / 110 / 120V +/- 5%

12V 24V 48V

220 / 230 / 240V +/- 3%

50 / 60Hz +/- 0.05% n e W

93.0%

0.38A

0.09A

42-60

VDC a v e ( T H D

91.0%

1.25A

0.25A

10.5-15

VDC

< 3 % )

94.0%

0.65A

0.15A

21.0-30

Red / Orange / Green LED

VDC

95.0%

0.35A

0.09A

42-60

VDC

Load Level Indicator

F a li u r e I n d i c a t o r

Protection

R e d L E D

Overload, Short Circuit, Reverse Polarity (Fuse),

Over / Under Input Voltage, Over Temperature.

R e m o t e C o n t r o l U n i t

S a f e t y C e r it if c a it o n

C R 6 / C R 8 O p it o n a l

U L 4 5 8 E N 6 0 9 5 0 1

E M C F C C C l a s s A

EN55022: 1997

EN55024: 1997

EN61000-3-2: 1998

EN61000-3-3: 1995 e-mark e13 022694

Operating Temperature Range

Storage Temperature Range

C o o il n g

Dimensions

W e i g h t

0 - 40 ℃

L o a d i n g c o n t r o ll e d c o o il n g f a n

340(L)*182(W)*88(H)mm / 13.39(L)*7.17(W)*3.46(H) Inch

4 k g / 8 .

8 L b s .

Note: The specifications are subject to change without notice.

4

5

Specification

C o n

Item it n u o u s O u t p u t P o w e r

M a x i m u m O u t p u t P o w e r

S u r g e R a it n g ( M a x )

Input voltage

Output Voltage

Frequency

(Switch Selectable)

O u t p u t W a v e f o r m

Efficiency (full load) Max. *1

No Load Current Draw (Max)

Stand-By Current Draw (Max)

Input Voltage Regulation

Model No.

SK1500-112 SK1500-124 SK1500-148 SK1500-212 SK1500-224 SK1500-248

1 5 0 0 W

12V 24V 48V

100 / 110 / 120V +/- 5%

1 6 5 0 W

3 0 0 0 W

12V 24V 48V

220 / 230 / 240V +/- 3%

88.0%

1.45A

0.28A

10.5-15

VDC

50 / 60Hz +/- 0.05%

P u r e S i n e W a v e ( T H D < 3 % )

91.0%

0.75A

0.15A

21.0-30

VDC

92.0%

0.40A

0.09A

42-60

VDC

90.0%

1.40A

0.28A

10.5-15

VDC

93.0%

0.70A

0.15A

21.0-30

VDC

94.0%

0.40A

0.09A

42-60

VDC

Input Level Indicator

Load Level Indicator

F a li u r e I n d i c a t o r

Red / Orange / Green LED

Protection

R e m o t e C o n t r o l U n i t

Safety Certification

E M C

Operating Temperature Range

Storage Temperature Range

C o o il n g

Dimensions

W e i g h t

R e d L E D

Overload, Short Circuit, Reverse Polarity (Fuse),

Over / Under Input Voltage, Over Temperature.

C R 6 / C R 8 O p it o n a l

Meet UL458

F C C C l a s s A

EN55022: 1997

EN55024: 1997

EN61000-3-2: 1998

EN61000-3-3: 1995

0 - 40

EN60950-1 e-mark e13 22876

-30 to 70

L o a d i n g c o n t r o ll e d c o o il n g f a n

370(L)*191(W)*88(H)mm / 14.57(L)*7.52(W)*3.46(H) Inch

4 .

8 k g / 1 0 .

5 6 L b s .

Note: The specifications are subject to change without notice.

Specification

C o n

Item it n u o u s O u t p u t P o w e r

M a x i m u m O u t p u t P o w e r

S u r g e R a it n g ( M a x )

Input voltage

Output Voltage

Frequency

(Switch Selectable)

O u t p u t W a v e f o r m

Efficiency (full load) Max. *1

No Load Current Draw (Max)

Stand-By Current Draw (Max)

Input Voltage Regulation

Model No.

SK2000-112 SK2000-124 SK2000-148 SK2000-212 SK2000-224 SK2000-248

2 0 0 0 W

12V 24V 48V

100 / 110 / 120V +/- 5%

2 2 0 0 W

4 0 0 0 W

12V 24V 48V

220 / 230 / 240V +/- 3%

89.0%

2.8A

0.60A

10.5-15

VDC

50 / 60Hz +/- 0.05%

P u r e S i n e W a v e ( T H D < 3 % )

92.0%

1.5A

0.30A

21.0-30

VDC

93.0%

0.7A

0.15A

42-60

VDC

91.0%

2.64A

0.60A

10.5-15

VDC

94.0%

1.32A

0.25A

21.0-30

VDC

95.0%

0.65A

0.15A

42-60

VDC

Input Level Indicator

Load Level Indicator

F a li u r e I n d i c a t o r

Red / Orange / Green LED

Protection

R e m o t e C o n t r o l U n i t

Safety Certification

E M C

Operating Temperature Range

Storage Temperature Range

Cooling

Dimensions

W e i g h t

R e d L E D

Overload, Short Circuit, Reverse Polarity (Fuse),

Over / Under Input Voltage, Over Temperature.

C R 6 / C R 8 O p it o n a l

Meet UL458

F C C C l a s s A

EN55022: 1997

EN55024: 1997

EN61000-3-2: 1998

EN61000-3-3: 1995

0 - 40

EN60950-1

e-mark e13 22846

-30 to 70

Loading controlled cooling fan ( 65 ON , 45 OFF)

368(L)*209(W)*166(H)mm / 14.49(L)*8.23(W)*6.53(H) Inch

9 k g / 1 9 .

8 L b s .

Note: The specifications are subject to change without notice.

6

Specification

C o n

Item it n u o u s O u t p u t P o w e r

M a x i m u m O u t p u t P o w e r

S u r g e R a it n g ( M a x )

Input voltage

Output Voltage

Frequency

(Switch Selectable)

O u t p u t W a v e f o r m

Efficiency (full load) Max. *1

No Load Current Draw (Max)

Stand-By Current Draw (Max)

Input Voltage Regulation

Model No.

SK3000-112 SK3000-124 SK3000-148 SK3000-212 SK3000-224 SK3000-248

3 0 0 0 W

12V 24V 48V

100 / 110 / 120V +/- 5%

3 3 0 0 W

6 0 0 0 W

12V 24V 48V

220 / 230 / 240V +/- 3%

88.0%

3.0A

0.55A

10.5-15

VDC

50 / 60Hz +/- 0.05%

P u r e S i n e W a v e ( T H D < 3 % )

91.0% 92.0% 90.0% 93.0%

1.6A

0.35A

21.0-30

VDC

0.8A

0.19A

42-60

VDC

2.8A

0.55A

10.5-15

VDC

1.5A

0.35A

21.0-30

VDC

94.0%

0.7A

0.19A

42-60

VDC

Input Level Indicator

Load Level Indicator

F a li u r e I n d i c a t o r

Red / Orange / Green LED

Protection

R e m o t e C o n t r o l U n i t

Safety Cert.

E M C

Operating Temperature Range

Storage Temperature Range

C o o il n g

Dimensions

W e i g h t

R e d L E D

Overload, Short Circuit, Reverse Polarity (Fuse),

Over / Under Input Voltage, Over Temperature.

C R 6 / C R 8 O p it o n a l

Meet UL458

F C C C l a s s A

EN55022: 1997

EN55024: 1997

EN61000-3-2: 1998

EN61000-3-3: 1995

0 - 40

EN60950-1 e-mark e13 22845

-30 to 70

L o a d i n g c o n t r o ll e d c o o il n g f a n

398(L)*209(W)*166(H)mm / 15.67(L)*8.23(W)*6.53(H) Inch

9 .

8 k g / 2 2 L b s .

Note: The specifications are subject to change without notice.

*1 : This test condition is normal DC input (13.5V) and Temperature 25

.

7

2-3. Mechanical Drawings

Y

NIT E U

AR

AG

OL

AM

E P RS

L D

VE

WIL

RE

) NEG(-

UT NP DC I

) POS(+

D

SIS

OUN

AS

GR

CH

E

RT PO

MOT RE

SK700 151.00[5 94]

SK1000 154.00 [6.06]

SK1500 163.00[6.42]

I

0

OFF

REMOTE

PURE SINE WAVE INVERTER 1000W

INPUT

LEVEL

LOAD

LEVEL

STATUS

FREQ.

PWR.

SAV.

O I

S4

S3

S2

S1

AC OUTPUT

SK700 179.00[7.05]

SK1000 182.00[7.17]

SK1500 191.00[7.52]

8

9

177.00 [6.97]

PURE SINE WAVE INVERTER

I

0

ON

OFF

REMO.

S4

S3

S2

S1

O I

INPUT

LEVEL

LOAD

LEVEL

STATUS

FREQ.

PWR.

SAV.

AC OUTPUT

209.00 [8.23]

3. Introduction

This power inverter series is one of the most advanced line of mobile AC power systems.

To get the most effective power inverter, it must be installed and used properly.

Please read the instructions of this manual before you install and operate this model.

3-1. Front Panel Operations

3-1-1. Front view:

0

I

ON

OFF

REMOTE

PURE SINE WAVE INVERTER

INPUT

LEVEL

LOAD

LEVEL

STATUS

FREQ.

PWR.

SAV.

O I

S4

S3

S2

S1

AC OUTPUT

SK700

SK1000

SK1500

I

0

ON

OFF

REMO.

S4

S3

S2

S1

O I

INPUT

LEVEL

LOAD

LEVEL

STATUS

FREQ.

PWR.

SAV.

PURE SINE WAVE INVERTER

AC OUTPUT

SK2000

SK3000

3-1-2. ON / OFF/ REMOTE (Main) switch: a. Before installing the inverter, you need to ensure the main switch must be “OFF”. b. Before using the remote unit, you need to ensure the main switch must be “ REMOTE”.

10

11

3-1-3. Input Level:Display Input Voltages

LED Status

RED Slow Blink

RED

ORANGE

GREEN

ORANGE Blink

OVER RED Blink

DC 12V

10.3~10.6

10.6~11.0

11.0~12.1

12.1~14.2

14.2~15.0

15.0

3-1-4. Load Level:Display AC Loads (Watts)

DC 24V

20.5~21.2

21.2~21.8

21.8~24.1

24.1~28.6

28.6~30.0

30.0

DC 48V

40.8~42.4

42.4~43.5

43.5~48.1

48.1~56.3

56.3~59.6

59.6

LED status DARK

SK700

SK1000

SK1500

SK2000

SK3000

0 ~ 56W

0 ~ 80W

0 ~ 120W

0 ~ 160W

0 ~ 240W

GREEN ORANGE RED RED BLINK

56 ~ 230W 230 ~ 525W 525 ~ 672W Over 672W

80 ~ 330W 330 ~ 750W 750 ~ 960W Over 960W

120 ~ 495W 495 ~ 1125W 1125 ~ 1450W Over 1450W

160 ~ 660W 660 ~ 1500W 1500 ~ 1920W Over 1920W

240 ~ 990W 990 ~ 2250W 2250 ~ 2880W Over 2880W

3-1-5. AC Frequency:Selected by “S4” Dip Switch

Frequency

5 0 H Z

6 0 H Z

S4

O F F

O N

3-1-6. Status:Display Power & Fault Status

Green LED

Solid

Slow Blink

Red LED

F a s t B il n k

S l o w B il n k

Intermittent Blink

S o il d

LED Signal

LED Signal

Status

Power OK

Power Saving

Status

O V P

U V P

OTP

O L P

3-1-7. Power Saving Mode: Power Saving Mode is adjustable and set by the Dip Switches, S1, S2 and S3 on the front panel.

Example: With the watt setting at 15W, a 15W↑ load will make the inverter operate normally, a 15W↓ load will enter into the Power saving mode.

SK700

SK1000

SK1500

SK2000

SK3000

DISABLE DISABLE DISABLE

15W

25W

20W

40W

40W

80W

40W

50W

65W

75W

85W

55W

75W

95W

115W

135W

125W

170W

210W

245W

280W

S1

OFF

ON

OFF

ON

OFF

ON

OFF

ON

S2

OFF

OFF

ON

ON

OFF

OFF

ON

ON

S3

OFF

OFF

OFF

OFF

ON

ON

ON

ON

12

13

3-1-8. AC outlets (available):

North America (GFCI) NEMA 5-20R

NEMA 5-15R Continental European

Australia / New Zealand United Kingldom

Universal

IEC-2

IEC-1

HARD WIRE

3-2. Rear Panel Operations

CHASSIS

GROUND

DC INPUT

POS(+) NEG(-)

SK700

SK1000

SK1500

REVERSE POLARITY

WILL DAMAGE UNIT

SK2000

SK3000

DC INPUT

WARNING:

REVERSE POLARITY

WILL DAMAGE UNIT

SHOCK HAZARD.

DO NOT OPEN. NO

USER SERVICEABLE

PARTS INSIDE.

POS(+)

NEG(-)

REMOTE

PORT

CHASSIS

GROUND

3-2-1. Remote Port:

The SK Series Inverter is compatible with any of the remote controllers,

CR-6, CR-7 or CR-8.

Before using the remote unit, you need to ensure the main switch is in the “ REMOTE” position and the input voltage of the power inverter is the same as it of the remote unit.

3-2-2. Fan Ventilation:

Be sure to keep it a distance (at least 1 inch) form surrounding things.

14

3-2-3. DC Input Terminal:

Connect DC input terminal to 12V / 24V / 48V battery or the other power sources.

【+】 represents positive, and【-】represents negative. Reverse polarity connection will blow the internal fuse and may damage the inverter permanently.

Model

12 V

DC Input Voltage

Minimum Maximum

10.5 15.0

24 V

48 V

21.0

42.0

30.0

60.0

3-2-4. Use wire # 8 AWG to connect Chassis ground with vehicle chassis.

WARNING!

Operating the inverter without a proper ground

Connection may cause an electrical hazard.

3-3. Protections Features:

15

Model

12 V

24 V

48V

DC Input (VDC)

Over Voltage

Shutdown

Restart

Under

Voltage

Alarm

Under

Voltage

Shutdown

Restart

15.3V 14.3V 11.0V 10.2V

12.7V

Over Temperature Protection

INTERIOR

Shutdown

Restart

HEAT SINK

Shutdown

Restart

30.6V 28.6V

61.0V 57.2V

22.0V 20.3V

25.2V

44.0V 40.8V

49.7V

70 4590 60

3-4. Installation

The power inverter should be installed in an environment that meets the following requirements:

3-4-1. Dry – Do not allow water to drip on or enter into the inverter.

3-4-2. Cool – Ambient air temperature should be between 0℃ and 40℃, the cooler the better.

3-4-3. Safe – Do not install the inverter in a battery compartment or other areas where flammable fumes may exist, such as fuel storage areas or engine compartments.

3-4-4. Ventilated –Keep the inverter a distance (as least 1 inch) away from surrounding things. Ensure the ventilation shafts on the rear and the bottom of the unit are not obstructed.

3-4-5. Dust – Do not install the Inverter in a dusty environments

The dust can be inhaled into the unit when the cooling fan is working.

3-4-6. Close to batteries – Avoid excessive cable lengths. Do not install the

Inverter in the same compartment as batteries.

Use the recommended wire lengths and sizes (see section 3-5).

Do not mount the Inverter where it will be exposed to the gases produced by the battery. These gases are very corrosive, and prolonged exposure will damage the Inverter.

WARNING!

Shock Hazard. Before proceeding further, carefully check that the Inverter is NOT connected to any batteries, and that all wiring is disconnected from any electrical sources. Do not connect the output terminals of the Inverter to an incoming AC source.

16

17

3-5. DC Wiring Connections

Follow this procedure to connect the battery cables to the DC input terminals of the Inverter. The cables should be as short as possible (less than 10 feet

/ 3 meters ideally) and large enough to handle the required current in accordance with the electrical codes or regulations applicable to the installation.

Cables that are not an adequate gauge (too narrow) or too long will deteriorate inverter performance such as poor surge capability and frequent low-input voltage warnings and shutdowns.

These low input voltage warnings are due to DC voltage drop across the cables from the inverter to the batteries.

The longer and narrower the cables, the greater the voltage drop.

Increasing DC cable size helps improve the situation.

COTEK recommends the following cables for optimum inverter performance.

(Apply both 120V and 230V versions )

Model No

SK700-112 / 212

SK700-124 / 224

S K 7 0 0 1 4 8 / 2 4 8

SK1000-112 / 212

S K 1 0 0 0 1 2 4 / 2 2 4

SK1000-148 / 248

SK1500-112 / 212

SK1500-124 / 224

S K 1 5 0 0 1 4 8 / 2 4 8

SK2000-112 / 212

SK2000-124 / 224

SK2000-148 / 248

SK3000-112 / 212

SK3000-124 / 224

SK3000-148 / 248

Wire AWG

# 4

# 6

# 8

# 2

# 4

# 6

# 2

# 4

# 6

# 2/0

# 1/0

# 2

# 4/0

# 2/0

# 1/0

Inline Fuse

100 A

50 A

3 0 A

150 A

8 0 A

40 A

200 A

100 A

5 0 A

250 A

125 A

70 A

400 A

200 A

100 A

3-5-1. Connect the cables to the power input terminals on the rear panel of the inverter. The red terminal is represents positive (+) and black terminal represents negative (-). Insert the cables into the terminals and tighten the screw to clamp the wires securely.

WARNING!

Ensure all the DC connections are tight (torque to 9 – 10 ft-lbs, 11.7 – 13 Nm). Loose connections may cause overheat and fire.

WARNING!

The installation of a fuse must be on a positive cable.

Failure to place a fuse on “+” cables running between the inverter and battery may cause damage to the inverter and will void warranty.

Also, use only high quality copper wire and keep cable length short, a maximum of 3 - 6 feet.

Battery to inverter cable connection

M8 SCREW

PVC WIRE

AWG#2-#6

RING TERMINAL

Do not place anything between battery cable lug and terminal surface.

Assemble exactly as shown.

18

19

INLINE FUSE

DC INPUT

WARNING:

REVERSE POLARITY

WILL DAMAGE UNIT

DO NOT OPEN. NO

PARTS INSIDE.

POS(+)

NEG(-)

REMOTE

PORT

CHASSIS

GROUND

BATTERY

SK700

SK1000

SK1500

CHASSIS

GROUND

DC INPUT

POS(+) NEG(-)

SK2000

SK3000

INLINE FUSE

BATTERY

Battery to inverter cable connection

WASHER

M8 NUT

SPRING WASHER

RING TERMINAL

PVC WIRE

PLASTIC COVER

(RED)

Do not place anything between battery cable lug and terminal surface.

Assemble exactly as shown.

PLASTIC COVER

(BLACK)

3-6. AC Safety Grounding

The AC output ground wire should go to the grounding point for your loads

( for example, a distribution panel ground bus ).

3-6-1. Neutral Grounding (GFCI’S):

3-6-1-1.

120V models: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 separately derived from AC sources (such as inverters and generators) which have their neutral conductors tied to ground in the same way as the neutral conductors from the utility tied to ground at the AC breaker panel. For models configured with a transfer relay, while AC utility power is present and the Inverter is in bypass mode, this connection (the neutral of the Inverter’s AC output to input safety ground) is not present so that the utility neutral is only connected to ground at your breaker panel, as required.

Ground Fault Circuit Interrupters (GFCI)

Installations in Recreational Vehicles (for North American approvals) will require GFCI protection of all branch circuit connected to the AC output of the hardwire terminal equipped with Inverter. In addition, electrical codes 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.

Cotek has tested the following GFCI – protected 20A receptacles and found that they functioned properly when connected to the output of the Inverter.

20

21

3-7. Inverter Operation

To operate the power inverter, use the ON / OFF switch on the Front panel to turn the power on. Then the power inverter is ready to deliver AC power to your loads. If there is several loads use, turn them on separately after the inverter is “ON” in order to prevent OVP resulted from the surge power.

3-7-1. Set the power switch to “ON” position and the buzzer will send out

“Beep” sounds at the moment. Then the inverter will make selfdiagnosis, and the LED’s indicators will also appear various colors.

Finally the buzzer will “Beep” again and the Input Level and Status

LED indicators will turn to “Green” color, then the inverter starts to work successfully.

3-7-2. Set the power switch to the OFF position, then the inverter stops and all the lights go Off.

3-7-3. Set the power inverter switch to ON position and turn the test load On.

The inverter should supply power to the load. If you plan to accurately measure the true output r.m.s. voltage of the inverter, a meter such as FLUKE 45 BECKMAN 4410 or TRIPLETT 4200 must be used.

4. Troubleshooting

WARNING!

Do not open or disassemble the Inverter.

Attempting to service the unit yourself may cause the risk of electrical shock or fire.

Problems and Symptoms

“No AC Power Output”

STATUS illuminates the red LED a. Blinking fast b. Blinking slowly. c. Blinking Intermittently. d. Solid ON.

Possible Cause Solutions

Over input voltage.

( OVP )

Low input voltage.

( UVP )

Check input voltage.

Reduce input voltage.

Recharge battery.

Check connections and the cable.

Thermal shutdown.

( OTP )

Short circuit or Wiring error.

Overload.(OLP)

Improve ventilation.

Make sure ventilation shafts in the inverter are not obstructed.

Lower ambient temperature.

Check AC wiring for short circuit.

Reduce the load.

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5. Maintenance

To keep your inverter operating properly, there is very little maintenance required.

You should clean the exterior periodically with a damp cloth to prevent accumulation of dust and dirt. At the same time, tighten the screws on the DC input terminals.

6. Warranty

We guarantee this product against defects in materials and workmanship for a period of 24 months from the date of purchase and will repair or replace any defective power inverters if you directly returned them to us with postage paid.

Please note that Cotek is only responsible for ensuring our products are operational before delivering. This warranty will be considered void if the unit has been misused, altered, or accidentally damaged. Cotek is not liable for anything that occurs as a result of the user’s fault.

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2010.11 A0

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