Kohler PW 1000/LT Series User manual

Kohler PW 1000/LT
(800–2200 VA)

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PDF ISSUE DATE REVISION SUMMARY
TS_602_00A 12/04/2018 First draft copy issued
TS_602_00 12/11/2018 First Issue
TS_602_01 20/03/2019 Kohler rebranding
www.kohler-ups.sg Kohler Uninterruptible Power web site
[e-mail] Service department – booking service, fault reporting etc.
[e-mail] Hardware sales

TS_602_01 PW1000/LT User Manual 20/3/19 1
1 Safety
This manual contains important safety instructions. Please read it thoroughly before you unpack, install or operate this
UPS and keep it close to hand for future reference. Ensure you follow carefully the installation and set-up instructions
when you install the product.
2 Introduction
Congratulations on your purchase of the Kohler PW 1000/LT UPS.
This line-interactive UPS system prevents your sensitive load equipment, such as a computer or other IT devices, from
being affected by power transients, dips and surges that regularly appear on the utility AC mains supply. It will even
maintain the supply to your load in the event of a complete AC mains supply failure (black-out) by operating on its internal
battery. The UPS will produce its nominal 220/230/240 VAC output voltage ±10% over an AC mains voltage range of
160~290 VAC. If the input supply should fall outside this range the UPS will switch to battery operation automatically and
the UPS output will be regulated at its nominal voltage.
The UPS is connected between your AC mains supply and load equipment and is simple to install and operate.
Kohler Uninterruptible Power specialises in the installation and maintenance of Uninterruptible Power Systems; and this
UPS is just one example of our wide range of state-of-the-art power protection devices that will provide your critical
equipment with a steady and reliable power supply for many years.
WARNING: Risk of electric shock:
• The UPS power outlets can be electrically live even when the UPS is disconnected from the AC mains.
• DO NOT remove the UPS cover. The unit does not contain any user-serviceable components and if you
remove the cover you will be exposed to potentially hazardous voltages.
• DO NOT insert any object into ventilation holes or other openings.
• The battery circuit is not isolated from the AC input and a hazardous voltage might exist between the
battery terminals and ground (earth). When replacing the batteries always use insulated tools and
check the terminal voltage.
WARNING: Battery safety:
• The UPS batteries contain lead and pose a hazard to the environment and human health if not disposed
of properly. If you replace the batteries you must dispose of the used batteries in accordance with local
environmental laws and regulations.
• Do not dispose of batteries in a fire as they might explode.
• Do not open or mutilate the batteries. They contain an electrolyte which is toxic and harmful to the skin
and eyes.
• If electrolyte comes into contact with the skin, the affected area should be washed immediately with
clean flowing water.
WARNING: General safety:
• To reduce the risk of fire, this equipment should be installed only in a temperature and humidity
controlled indoor area free of conductive contaminants.
• In case of fire only use a dry power fire extinguisher. If you use a liquid fire extinguisher it may lead to an
electric shock.
• All servicing must be performed by a qualified engineer approved by the manufacturer or its agent.
Do not attempt to service the UPS yourself.
• Kohler Uninterruptible Power will assume no responsibility or liability for accidents or injuries due to the
incorrect operation or manipulation of the UPS or peripheral equipment.

2TS_602_01 PW1000/LT User Manual 20/3/19
Figure 2.1 PW1000LT Standard assemblies
OUT I N
2
3
4
5
1
Symbol Led
Red
Green
Yellow
UPS ON/OFF Switch
ON: System malfunction
ON: Line mode
DIM: Abnormal input (V/Hz)
ON: Battery mode
Flashing: Battery Low
-
Description
Key
AC Input power connector (IEC)
Input fuse
UPS Power outlets (4 x IEC)
USB interface (standard) + RS232 interface (option)
Modem/network surge protection (option)
1
2
3
4
5
Description
Key
AC Input power connector (IEC)
Input fuse
UPS Power outlets (4 x IEC)
USB interface (standard) + RS232 interface (option)
Modem/network surge protection (option)
1
2
3
4
5
Fan6
Description
Symbol Led
Red
Green
Green
UPS ON/OFF Switch
ON: System malfunction
ON: Line mode
Flashing: Battery mode
Load % or Battery capacity % indicators
(Indicate the percentage load when the
UPS is operating on Line mode,
and percentage battery capacity when
operating on Battery mode)
Description
PW1000LT 650 / 1000VA Models
PW1000LT 1200 / 1600 / 2000VA Models
OUT I N
23
45
6
1

TS_602_01 PW1000/LT User Manual 20/3/19 3
Figure 2.2 PW1000LT LCD Display Panel (option)
3 Installation and set-up
3.1 Unpacking the UPS equipment
The manufacturer has designed robust packaging for your product to help ensure it reaches you in good order. However,
accidents and damage can sometimes occur during shipment so you should inspect the UPS carefully upon receipt and
inform the carrier and dealer immediately if there are signs of damage.
Save any recyclable packaging for re-use or dispose of it following local environmental practices.
1. Remove the UPS from the packing carton.
2. Check the package contents. The standard unit includes:
• 1x UPS Power Unit
• 1x IEC input power cable fitted with a suitable AC Mains plug
• 1x User Manual
3. Check the data plate on the rear of the UPS and verify that the unit’s voltage and power ratings comply with the
equipment order details. Contact the dealer immediately if this is incorrect.
3.2 Selecting a suitable installation location
To ensure optimum UPS operation and long service life, always install the UPS in a location that meets the following
environmental standards:
• The ambient temperature is between 0°C and +40°C. A temperature of 20°C is ideal for optimum battery lifespan
• The ambient humidity does not exceed 90% (non condensing)
• The installed location is clean, dry and free of excessive dust
• The UPS must not be installed in direct sunlight
• The UPS must not be installed near water or any other source of liquid
• The UPS must not be installed in a corrosive environment or in the vicinity of flammable items
• A minimum clearance of 2.5 cm (1 inch) must be provide around the UPS case to allow adequate heat dissipation
• The UPS must be installed within 2m of a utility AC mains power socket
WARNING: Under no circumstances should you connect electrical power to a damaged unit or attempt to
start it using its internal batteries.
Input VAC VDC Min
Alarm
A.V.R.
Output VAC
Normal Backup
1 52 3 4
678
Key
Line mode
Input / battery voltage metering
Fault: UPS abnormal condition
Output voltage metering
Battery mode
1
2
3
4
5
Load level (in 25% blocks)6
Description
Automatic Voltage Regulation (AVR) mode5
Battery capacity (in 25% blocks)6

4TS_602_01 PW1000/LT User Manual 20/3/19
3.3 Connecting the UPS
1. Connect the UPS AC Input power socket (1) to the utility mains supply using the supplied power cable (ensure the
mains supply is switched OFF).
2. Connect the load equipment (e.g. PC, monitor, data storage devices) to the UPS power outlets (3).
3. If required, connect the Modem/ Phone/ Network cables to the surge protection sockets (5) on the back of the UPS.
Connect the telephone line to the IN socket then connect the protected telephone/modem equipment to the OUT
socket, using suitable RJ11/RJ45 adapters where necessary.
4. If required, connect the optional UPS communication ports to a local PC using a standard USB or 9-pin RS232 cable.
Note: Appropriate communications software can be obtained from Kohler Uninterruptible Power.
This concludes the installation. You can now turn ON the UPS as described in the Operating Instructions below.
4 Operating instructions
4.1 Turning ON the UPS
1. Press the UPS ON/OFF button for approximately 3 seconds.
a) The buzzer will sound twice.
b) The UPS will start, and deliver power to the connected load.
4.2 Turning OFF the UPS
1. Press the UPS ON/OFF button for approximately 3 seconds.
a) The buzzer will sound twice.
b) The UPS will turn OFF, and disconnect the power to the load.
4.3 ‘Cold Start’ function
If the utility mains is not available you can start the UPS from its internal battery.
1. Press the UPS ON/OFF button until the buzzer beeps.
a) The UPS will start, and deliver power to the connected load.
Note: The UPS battery will begin to discharge and the utility mains supply must be restored before the battery
reaches its fully-discharged voltage, whereupon the UPS will shut down and disconnect the load power.
5 Maintenance
The UPS does not contain any user-serviceable parts, so it is essentially maintenance-free other than to ensure that the
UPS operating environment is kept cool and dust free. A clean, controlled operating environment will help maximise the
useful working life and reliability of both the UPS and its battery.
WARNING: Do not disconnect the mains power cable while the UPS is operating as it provides the UPS
protective earth connection.
CAUTION: The UPS is designed to be used with computer loads only. DO NOT connect a laser printer to the
UPS as it draws significantly more power than other types of equipment and may overload the UPS.
CAUTION: We recommend that when starting the UPS for the first time you should leave it operating for at
least 8 hours to fully charge the battery before connecting any critical load. This is to ensure that the UPS can
perform to its full specification in the event of a mains power failure.

TS_602_01 PW1000/LT User Manual 20/3/19 5
5.1 Battery replacement
Depending on usage, the battery capacity will reduce over time and may need replacing in order to maintain the specified
UPS backup performance.
Figure 5.1 PW1000/LT Battery Replacement
1. Turn OFF the UPS.
2. Disconnect the mains power cable.
3. Remove the four screws located at the base of the UPS (Fig A).
4. Remove the front panel and top cover by lifting it at the back and pulling forward (Fig B).
800VA Model only (Fig C)
5. Loosen and disconnect the cable from the battery negative terminal followed by the red battery positive terminal.
6. Carefully withdraw the battery from the case, taking care not to short circuit the battery terminals.
7. Fit the replacement battery using the above instructions in reverse order. (Note that it is normal to see a small spark
when connecting the new battery.)
8. Refit the front panel and top cover, and secure in place using the four screws located at the base of the UPS.
WARNING: If you remove a cover from the UPS case you will be exposed to potentially lethal voltages.
• The battery replacement procedure must be carried out by an electrically trained technician.
• If a battery is faulty ALWAYS seek assistance from Kohler Uninterruptible Power or one of its local
service agents.
(Fig B)
(Fig A)
(Fig D)
(Fig C)

6TS_602_01 PW1000/LT User Manual 20/3/19
1500/2200VA Model only (Fig D)
9. Using an insulated screwdriver, remove the two screws from the battery holding plate.
10. Loosen and disconnect the cable from the battery negative terminal followed by the red battery positive terminal.
11. Loosen and remove the link connecting the two batteries together (shown in green in the diagram)
12. Carefully withdraw the batteries from the case, taking care not to short circuit the battery terminals.
13. Fit the replacement batteries using the above instructions in reverse order. (Note that it is normal to see a small spark
when connecting the new battery.)
14. Refit the front panel and top cover, and secure in place using the four screws located at the base of the UPS.
5.2 Battery disposal
Batteries contain dangerous substances that can harm the environment if they are disposed of carelessly. ALWAYS
dispose unwanted batteries in accordance with regulations set by local environmental waste disposal organisations.
6 Troubleshooting
If the UPS fails to operate correctly, carry out the following simple checks before you seek trained assistance.
1. Check that the utility mains supply is available and turned ON.
2. Check that the UPS input mains power cable is connected securely.
3. Check that the utility mains supply is within the UPS specified operating range.
4. If the above checks are passed, and the UPS is still not operating, check the mains supply plug-top fuse and the input
fuse (2) on the back of the UPS and replace if found to be ruptured.
Seek trained assistance if the replacement fuse fails immediately the UPS is switched back ON.
5. If all of the above are satisfactory, disconnect the load from the UPS power outlet(s) and check if the unit operates off-
load. If so, then the cause of the problem is likely to be load related.
6. Check that the battery is not discharged or defective.
Symptom Possible cause Solution
No LEDs displayed on front panel Battery voltage is low Charge the UPS for at least 6 hours
Battery is defective Replace battery with one of the same capacity
The UPS is not turned ON Press the power switch again (3 seconds.)
Alarm beeps continuously when the
utility mains supply is normal
The UPS is overloaded Reduce the connected load until it is within the UPS
specified load capacity
UPS does not provide the expected
back-up time
The UPS is overloaded Reduce the connected load until it is within the UPS
specified load capacity
Battery voltage is low Charge the UPS for at least 6 hours
Battery is defective Replace battery with one of same capacity
Utility mains supply is normal but the
input LED is flashing
Mains power cable is loose. Reconnect the mains power cable correctly

TS_602_01 PW1000/LT User Manual 20/3/19 7
7 Specification
PW1000/ 800LT PW1000/ 1500LT PW1000/ 2200LT
Capacity 800VA 1500VA 2200VA
Input
Voltage 220/230/240 VAC
Voltage range 160~290 VAC
Output
Voltage regulation ±10%
Transfer time Typical 2-6ms, 10ms max.
Waveform Simulated sinewave
Battery
Type and number 12V/9Ah x 1 12V/9Ah x 2
Charging time 4-6 hours recover to 90% capacity
Physical
Dimensions (WxHxD, mm) 100 x 140 x 192 148 x 198 x 315
Net weight (kg) 5.5 11.0 12.0
Packing dimensions (WxHxD, mm) 137 x 226 x 321 229 x 302 x 411
Gross weight (kg) 6.0 12.0 13.0
Environment
Humidity 0-90% @0-40°C (non-condensing)
Noise level Less than 40 dBA at 1 metre from the front of the case.
Certification
Safety Standard EN62040-2
EMC/Surge standard EN61000-3-2, EN61000-3-3
Mark CE, RoHS, TISI