advertisement
P
OWER
A
VAILABILITY
Maintenance Bypass Cabinet for Nfinity
U
SER
M
ANUAL
TABLE OF CONTENTS
FRONT VIEW (WITH TRANSFORMER). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REAR VIEW (WITHOUT TRANSFORMER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Transferring System from UPS to Maintenance Bypass Operation. . . . . . . . . . . . . . . . . . . 18
Transfer of the System from Maintenance Bypass to UPS Operation. . . . . . . . . . . . . . . . . 18
i
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE
INSTRUCTIONS
This manual contains important instructions that should be closely followed during installation and maintenance of this Maintenance Bypass Cabinet.
This product is designed for commercial/industrial use only. this product is not intended for use with life support and other designated “critical” devices.
Maximum load must not exceed that shown on the
UPS and the Maintenance Bypass Cabinet rating label.
!
WARNING
LETHAL VOLTAGES MAY BE
PRESENT WITHIN THIS UNIT
EVEN WHEN IT IS APPARENTLY
NOT OPERATING. OBSERVE ALL
CAUTIONS AND WARNINGS IN
THIS MANUAL. FAILURE TO DO
SO MAY RESULT IN SERIOUS
INJURY OR DEATH. NEVER
WORK ALONE.
The Nfinity Maintenance Bypass Cabinet is designed for use on properly grounded (earthed)
208/240 VAC 60Hz supply, for installation by qualified personnel. This UPS equipment is intended to be installed by a qualified / certified electrician who must review and approve customer supplied wiring, circuit breakers, intended loads and verify correct input, output and grounded
(earthed) connections to ensure compliance with technical standards and national and local electrical codes. Installation instructions and warning notices are located in the Installation section of this manual.
!
CAUTION
To reduce the risk of fire:
• The NMB1x and NMB4x models must be connected to a circuit provided with 100 amperes maximum branch circuit overcurrent protection in accordance with applicable national and local electrical codes.
• The NMB5x and NMB8x models must be connected to a circuit provided with 125 amperes maximum branch circuit overcurrent protection in accordance with applicable national and local electrical codes.
Operate the UPS equipment in an indoor environment only in an ambient temperature range of 32°F to 104°F (0°C to 40°C). Install it in a clean environment, free from conductive contaminants, moisture, flammable liquids, gases, or corrosive substances.
Never block or insert any object into the ventilation holes or other openings.
1
GLOSSARY OF SYMBOLS
Risk of Electrical Shock
Indicates Warning or Caution Followed by Important
Instructions
AC Input
AC Output i
Requests the user to consult the manual
Equipment Grounding Conductor
ON
OFF
2
GENERAL DESCRIPTION
Congratulations on your purchase of Liebert’s
Nfinity™ Maintenance Bypass Cabinet with
Configurable Output Distribution. As with every
Liebert product, we stand behind our quality. If you have any questions concerning this Maintenance
Bypass Cabinet, please feel free to contact your local dealer, Liebert representative, or call the appropriate Technical Support number listed on the back of this manual.
To ensure proper installation and operation of this unit, please read this manual thoroughly.
Installation must be done by a qualified/certified electrician, but general operation may be performed without special training.
S
YSTEM
D
ESCRIPTION
The Liebert Nfinity Maintenance Bypass Cabinet is intended for use with the Nfinity UPS. Typical applications include supporting workstations, servers, network, telecom or other sensitive electronic equipment.
The Nfinity Maintenance Bypass Cabinet was designed to provide maximum system availability to business critical equipment. The Nfinity
Maintenance Bypass Cabinet allows for transfer of connected loads to an alternate power path allowing full isolation of the UPS. The UPS can then be turned “OFF” and removed from service with no interruption of power to connected loads.
Features
• Supports up to 20 kVA loads
• High speed transfer switch
• Compact design
• Highly configurable
• Multiple power path indicators
Standard Components
• Casters and leveling feet
• Easily accessible terminal blocks
• Supports Lockout/Tagout Program
• Support/mounting brackets for additional stability
• Provisions for hardwire output
• Dual-source compatible for increased availability
Options
• Output transformer for isolation
• Field installable output distribution
3
Bypass availability indicator (amber)
Bypass switch (SW1)
UPS input power present (amber)
FRONT VIEW
4
Output breaker (CB1)
UPS output availability indicator (green)
UPS input switch (SW2)
Cooling fans
(transformer models only)
Support bracket
REAR VIEW (WITHOUT TRANSFORMER)
Configurable output distribution (optional)
Hardwire output
(standard)
UPS input (TB3)
Maintenance bypass input (TB1)
Hardwire output terminal block (TB5)
UPS output (TB4)
Maintenance bypass input (TB2)
Support bracket
5
REAR VIEW (WITH TRANSFORMER)
Configurable output distribution (optional)
Hardwire output
(standard)
Tap selector (TB4)
Maintenance bypass input (TB1) (TB2)
6
Hardwire output terminal block (TB6)
UPS output (TB5)
UPS input (TB3)
Support bracket
MODES OF OPERATION
The Nfinity Maintenance Bypass Cabinet is designed to operate in the following modes:
UPS M
ODE
While the Nfinity Maintenance Bypass Cabinet is in the UPS Mode, the UPS is supplying the connected load with continuous high quality AC power. In this mode of operation, the load is protected by the UPS. The Bypass Switch rotated toward the green lamp indicates this mode.
B
YPASS
M
ODE
When the Nfinity Maintenance Bypass Cabinet is in the Bypass mode it provides an alternate path for power to the connected equipment. Should the
UPS need to be taken out of service for limited maintenance or repair, manual activation of the bypass will cause an immediate transfer of the equipment from the UPS inverter to the bypass source. The amber lamp illuminated in the
Maintenance Bypass Switch compartment indicates bypass is available. In this mode of operation the load is NOT protected by the UPS.
The Bypass Switch rotated toward the amber lamp
indicates this mode. See OPERATING
PROCEDURES on page 18 for instructions on
use.
UPS ouput available
(green)
Bypass available
(amber)
7
Bypass mode
UPS Input source (amber)
ON = AC power supplied to UPS input
OFF = AC power removed from UPS input
The following is a general description of each component and its functions. Please review this section carefully, as it will give you a better understanding as to how the Nfinity Maintenance
Bypass Cabinet operates.
B
YPASS
S
WITCH
The Bypass Switch allows easy and rapid transfer of connected loads between the UPS and Bypass source.
User Selectable Output Distribution
Several receptacle and hardwire options are available as user selectable output distribution.
These are factory configured when ordered and also allow for field upgrades. Common receptacle and hardwire options include:
15 Amp Options
5-15R2
L5-15R2
6-15R2-208
6-15R2-240
L6-15R2-208
L6-15R2-240
15A,120V, 1 pole breaker w/ 1/2" & 3/4" knockouts
15A,208V, 2 pole breaker w/ 1/2" & 3/4" knockouts
15A,240V, 2 pole breaker w/ 1/2" & 3/4" knockouts
20 Amp Options
5-20R2 (T-slot)
L5-20R
L6-20R-208
L6-20R-240
L14-20R-240
20A,120V, 1 pole breaker w/ 1/2" & 3/4" knockouts
20A,208V, 2 pole breaker w/ 1/2" & 3/4" knockouts
20A,240V, 2 pole breaker w/ 1/2" & 3/4" knockouts
MAJOR COMPONENTS
30 Amp Options
L5-30R
L6-30R-208
L6-30R-240
L14-30R-240
30A,120V, 1 pole breaker w/ 1/2" & 3/4" knockouts
30A,208V, 2 pole breaker w/ 1/2" & 3/4" knockouts
30A,240V, 2 pole breaker w/ 1/2" & 3/4" knockouts
Other Options
Single Position Blanking Plate
Hardwire Option
Optional Transformer
Models offering a transformer are designed to accept the same input voltage as the UPS and provide 240 / 208 / 120 / 120 output. Models with transformers are provided with redundant cooling fans and user serviceable fan filters. The fans only operate when in Bypass mode.
8
These installation instructions provide all the information needed for positioning the Nfinity
Maintenance Bypass Cabinet (including environmental requirements) and for connecting the input and output power cables.
I
NSPECTION
Upon receiving the Nfinity Maintenance Bypass
Cabinet, examine the packaging for any signs of mishandling or damage. If any damage is noted, contact your local dealer or Liebert representative and notify your carrier.
E
NVIRONMENT
The Maintenance Bypass Cabinet environment must be free of conductive contaminants and excessive moisture (water condensation), flammable vapors, chemical fumes, or corrosive gases and liquids.
R
EQUIRED
S
ETUP
E
QUIPMENT
The tools below are required in order to properly setup your maintenance bypass cabinet:
• pallet jack
• 1/2" (13 mm) wrench
• torque wrench
• flat-head screwdriver
• #2 Phillips screwdriver
• 3/16" (5 mm) Allen wrench
PREPARATION
S
ITE
P
REPARATION
When deciding where to locate your Maintenance
Bypass Cabinet, consider the weight and size of the unit. Make sure that the structural integrity of the floor can withstand the weight. Refer to the table below for dimensional considerations:
Model
W x D x H
In (mm)
Weight
Dimensions w/Transformer w/oTransformer
9.5 x 26.5 x 30.4
(241.3 x 673.1 x 772.16)
287 lbs (130 kg) 85 lbs (38 kg)
Check to make sure that your Maintenance
Bypass Cabinet will be located in a well-ventilated area with at least 12 inches in front of and behind it. Transformer based models are forced air cooled with the aid of two internal cooling fans.
12" (304mm)
9
12" (304mm)
The unit frame is bolted to the shipping pallet to ensure safety. It is recommended that a pallet jack be used to transport the unit to its operating location (prior to unbolting the unit).
UNLOADING
U
NLOADING THE
M
AINTENANCE
B
YPASS
C
ABINET
!
CAUTION
This Maintenance Bypass Cabinet
is heavy (see weight in Dimensions table on page 9). At least two
people should assist to unload it from the pallet.
1. Once the Maintenance Bypass Cabinet is near the desired operating location, remove the cardboard cover.
3. Remove the metal ramp from the bottom of the pallet, rotating it 180°. Fit ramp onto opposite side of pallet (in slot) as shown below.
2. Use a 1/2" (13mm) wrench to remove the eight mounting bolts (four per bracket) from the pallet brackets. Remove mounting brackets from the pallet and Maintenance Bypass
Cabinet. Keep brackets and bolts for future transportation of the Maintenance Bypass
Cabinet or for securing the cabinet to the floor.
4. Using two people, slowly roll the Maintenance
Bypass Cabinet down the ramp until the
Maintenance Bypass Cabinet is on a level surface.
10
5. Once the Maintenance Bypass Cabinet is in the desired location, adjust the leveling feet to secure its position.
S
TATIONARY
M
OUNTING
Additional stability can be added by bolting the mounting brackets (used in shipping) to the floor.
For greater stability, use a higher-grade bolt. Refer to the dimensions below when drilling holes for stationary mounting.
4-3/4"
(120 mm)
4-3/4"
(120 mm)
28"
(711 mm)
5/16" diameter
6 places
11
CABLE INSTALLATION
W
IRING
!
P
REPARATION
WARNING
PLEASE READ THIS SECTION
THOROUGHLY BEFORE
ATTEMPTING TO INSTALL
WIRING TO THIS UNIT.
Be sure that the unit is not connected to any AC mains power source or UPS before installing any wiring to this unit. This Maintenance Bypass
Cabinet should be installed by a qualified / certified electrician.
Dual Source Configuration
Modifying the wiring consists of removing the jumpers between TB1 and TB2 as described below:
1. Remove cover plates.
2. Identify TB1 and TB2.
3. Using a 3/16" Allen wrench, loosen terminal mounting jumpers between TB1 and TB2.
4. Remove jumpers and retighten terminals to
22-26 in-lb (2.5 to 3.0 Nm).
5. Connect primary source to TB2 and secondary source to TB1.
Preparing Internal Wiring
The Maintenance Bypass Cabinet is factoryconfigured for single-source installations. If your installation requires dual-source capabilities, the
Maintenance Bypass Cabinet’s wiring must be modified.
TRANSFORMER MODELS
TB1 TB2
Cables to be removed
NON-TRANSFORMER MODELS
TB3
TB1
Cables to be removed
12
TB2
R
EMOVING THE
C
OVER
P
LATES
On the back of the Maintenance Bypass Cabinet, cover plates are over the input and output terminals. Remove these using a phillips screwdriver. Keep screws and plates to one side.
P
OWER
C
ABLE
I
NSTALLATION
Refer to the chart below when selecting cables:
Power Cable and Protection Ratings
Models NMB1x & NMB4x
Max Input Current
Input Protection
Max Output Current
Input/ Output Terminal
Details
100 A
100 A
100 A
Max: 2/0 (70 mm 2 )
Min: 6 AWG (16 mm 2 )
Models NMB5x & NMB8x
Max Input Current
Input Protection
Max Output Current
Input/ Output Terminal
Details
125 A
125 A
125 A
Max: 2/0 (70 mm 2 )
Min: 6 AWG (16 mm 2 )
NOTES: If an output transformer is fitted, the
Nfinity Maintenance Bypass has a five-cycle inrush current that is 10 times the rated output current.
This must be taken into account when selecting the overload protection device at the AC input supply distribution point. To avoid random tripping on start up, it is recommended that the AC input supply be protected with a circuit breaker capable of withstanding this initial inrush.
Transient and steady state earth leakage currents may occur when starting the equipment. This should be taken into account when selecting ground current detection devices, as these will carry the earth leakage currents of both the UPS equipment and the load.
REPO C
ONNECTION
Refer to the Nfinity user manual for connection details.
13
I
NPUT
W
IRING
(TB1)
Connect the input wiring as stated in the following steps:
NOTE
Input wiring must be installed using conduit.
208 input voltage jumper—if only the connections for 208 VAC are made between the UPS and theNfinity
Maintenance Bypass, the 208 input voltage jumper must be installed for proper operation. To install this jumper, place the jumper wire provided in the accessory kit between Pin 1 and Pin 2 on
TB4.
1. Locate the input wiring access, remove the knockout and pull the three/four input wires through it, allowing some slack for installation.
2. Secure the conduit to the rear panel of the
Maintenance Bypass Cabinet.
3. Input power cables connect to hex terminals on the input terminal block.
4. Insert the ground (earth) wire through the earth lug and tighten it to the proper torque value (22-26 in-lb). Then connect the wires to the block connections as shown below. Using a torque wrench, turn the screws clockwise until tightened to the proper torque value
(22-26 in-lb).
RIGHT HAND OPTION
( LOOKING FROM FRONT OF UNIT )
LEFT HAND OPTION
( LOOKING FROM FRONT OF UNIT )
REAR VIEW REAR VIEW
Input
Conduit
14
Maintenance Bypass Cabinet With Transformer
Input 2
TB2
Input 1
TB1
Single input jumper
(remove for dual input feeds)
TB4
208/240V
Tap Selector
SW2
UPS Input
Switch
Transformer
CB1
Output
Breaker
Output
SW1
Bypass
Switch
TB6
TB3
UPS Input
Maintenance Bypass Cabinet Without Transformer
TB5
UPS Output
Input 2
TB2
Input 1
TB1
Single input jumper
(remove for dual input feeds)
SW1
Bypass
Switch
SW2
UPS Input
Switch
CB1
Output
Breaker
TB5
Output
TB3
UPS Input
TB4
UPS Output
15
UPS to Maintenance Bypass With Transformer
TB6
1
2
3
4
120
208
120
240
Input 2
Input 1
TB2
L1
L2
G
TB1
L1
L2
G
NFINITY MAINTENANCE BYPASS CABINET
WITH TRANSFORMER
Remove these two wires for dual source
G
TB3
L1 L2 G
TB4
1 2 3
TB5
1 2 3 4
208 240
Flexible conduit
L1 L2
TB1
Ensure that both tap selectors are set to the correct input voltage
G 1 2 3
TB2
NFINITY UPS
1 2 3 4 5
TB3
G
G
GEC
See Nfinity user manual for details on connecting
GEC.
NOTES
1. If feeding the Maintenance Bypass Cabinet from a single source, the input connection may be made to either TB1 or TB2.
2. If feeding the Maintenance Bypass Cabinet from a dual source, the UPS input supply connection must be made to TB1 and the bypass input supply connection must be made to TB2. The link between TB1 and TB2 must be removed.
16
UPS to Maintenance Bypass Without Transformer
Input 2
Input 1
TB2
L1
L2
N
G
TB1
L1
L2
N
G
NFINITY MAINTENANCE BYPASS CABINET
WITHOUT TRANSFORMER
Remove these three wires for dual source
G
TB5
1
2
3
4
120
208
120
240
TB3
L1 L2 G
TB4
1 2 3 4
G
G
Flexible conduit
L1 L2 G 1 2 3
TB2
NFINITY UPS
1 2 3 4 5
GEC
See Nfinity user manual for details on connecting
GEC.
Ensure that the tap selector is set to the correct input voltage
TB1 TB3
NOTES
1. If feeding the Maintenance Bypass Cabinet from a single source, the input connection may be made to either TB1 or TB2.
2. If feeding the Maintenance Bypass Cabinet from a dual source, the UPS input supply connection must be made to TB1 and the bypass input supply connection must be made to TB2. The link between TB1 and TB2 must be removed.
17
OPERATING PROCEDURES
S
TART
-U
P AND
I
NITIALIZATION
Follow these steps in order to start up the Nfinity
UPS while connected to the Nfinity Maintenance
Bypass.
1. Set Maintenance Bypass switch (SW1) to UPS position on Maintenance Bypass Cabinet.
2. Close UPS source switch (SW2).
3. Close output circuit breaker (CB1).
4. Close input circuit breaker (CB1).
5. On UPS, close control enable switch (SW2).
6. After UPS has initialized, turn UPS output on by pushing the standby button.
T
RANSFERRING
S
YSTEM FROM
UPS
TO
M
AINTENANCE
O
PERATION
B
YPASS
1. Verify that the amber bypass lamp is illuminated
2. Turn the bypass switch (SW1) to the bypass position on the Maintenance Bypass Cabinet.
The connected equipment is now powered from the bypass source and is not protected.
S
HUTTING
D
OWN THE
UPS
Use the following procedure to power down the system.
1. Turn UPS output off by pushing the Standby button.
2. Open the control enable switch (SW2) on the
UPS.
3. Open the input circuit breaker (CB1) on the
UPS.
4. Open the UPS source switch (SW2) on the
Maintenance Bypass Cabinet.
5. Open the output circuit breaker (CB1) on the
Maintenance Bypass Cabinet.
T
RANSFER OF THE
S
YSTEM FROM
M
AINTENANCE
B
YPASS TO
UPS
O
PERATION
1. Close the UPS source switch (SW2) on the
Maintenance Bypass Cabinet.
2. Close the input circuit breaker (CB1) on the
UPS.
3. Close the control enable switch (SW2) on the
UPS.
4. Turn the UPS output on by pushing the standby button on the UPS. Verify the Green
UPS lamp is illuminated.
5. Turn the bypass switch to the bypass position on the Maintenance Bypass Cabinet.
18
P
ROPER
C
ARE
Keeping your Liebert Nfinity Maintenance Bypass
Cabinet operating properly is imperative to optimal performance and life of the unit. It is recommended that a certified technician perform preventive and corrective maintenance. Liebert
Global Services (LGS) is dedicated to ensuring the highest level of performance and unmatched support for your Nfinity Maintenance Bypass
Cabinet. Contact an LGS representative for services to guarantee maximum reliability and system availability.
S
CHEDULED
M
AINTENANCE
It is recommended that the following maintenance be performed at least monthly:
• Check, clean and replace filters.
• Verify that airflow is not obstructed.
It is recommended that the following maintenance be performed annually:
• Verify all power connections.
• Verify that all output distribution modules are operating properly.
MAINTENANCE
R
EPLACING
F
AN
F
ILTERS
Transformer Models Only
The Maintenance Bypass Cabinet intake fans contain filters that will need to be replaced or cleaned periodically, depending on the surrounding environment. Check by noting the condition of the two filters. If filters are dirty, replace or wash them. The filters may be taken out of the UPS for replacement or cleaning by removing the plastic cover over the filter frame.
Use caution when replacing filters when fans are running.
Fan Filters
The fan filters are washable and can be reused.
To wash these filters, place them under a running faucet (with the dirt side down) to remove dirt and dust. Blot dry with a towel and allow air-drying before reusing.
19
SPECIFICATIONS
General & Environmental Rating
Unit Rating
Compliant Safety Standards kVA
Amps
Models NMB1x and NMB4x = 18
Models NMB5x and NMB8x = 20
Models NMB1x and NMB4x = 100 max
Models NMB5x and NMB8x = 125 max
UL 1778, c-UL
Mechanical
Dimensions
Width
Depth
Height
Weight
In (mm) lb (kg)
287 (130) transformer model
9.5 (241)
26.5 (700)
30.4 (775)
85 (39) transformerless model
Environmental
Operating Temperature (max)
Relative Humidity
F (C)
%
Maximum Operating Altitude Ft (M)
Input Data
Nominal Input Voltage
Input Frequency (nominal)
Input Frequency Range
Output Data
VAC
Hz
Hz
208/240
32º - 104º (0º - 40º)
0-95% non-condensing
10,000 (3000)
208 or 240
60
55-65
240 208
Output Voltage
Transfer Time
Output Frequency
VAC msec
Hz
* Transformerless model requires neutral input
120/120/208/240 120/120/240* 120/120/208*
<4 msec typical
60
20
P
OWER
A
VAILABILITY
Maintenance Bypass Cabinet for Nfinity
U
SER
M
ANUAL
The Company Behind the Products
With over a million installations around the globe,
Liebert is the world leader in computer protection systems. Since its founding in 1965, Liebert has developed a complete range of support and protection systems for sensitive electronics:
• Environmental systems—close-control air conditioning from 1 to 60 tons
• Power conditioning and UPS with power ranges from 300 VA to more than 1000 kVA
• Integrated systems that provide both environmental and power protection in a single, flexible package
• Monitoring and control—from systems of any size or location, on-site or remote
• Service and support through more than 100 service centers around the world and a 24/7
Customer Response Center
While every precaution has been taken to ensure the accuracy and completeness of this literature,
Liebert Corporation assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions.
© 2002 Liebert Corporation
All rights reserved throughout the world.
Specifications subject to change without notice.
® Liebert and the Liebert logo are registered trademarks of Liebert Corporation. All names referred to are trademarks or registered trademarks of their respective owners.
SL-23960 (7/02) Rev. 2
Technical Support/Service
Web Site www.liebert.com
Monitoring
800-222-5877 [email protected]
Outside the US: 614-841-6755
Single-Phase UPS
800-222-5877 [email protected]
Outside the US: 614-841-6755
Three-Phase UPS
800-543-2378 [email protected]
Environmental Systems
800-543-2778
Outside the United States
614-888-0246
Locations
United States
1050 Dearborn Drive
P.O. Box 29186
Columbus, OH 43229
Italy
Via Leonardo Da Vinci 8
Zona Industriale Tognana
35028 Piove Di Sacco (PD)
+39 049 9719 111
Fax: +39 049 5841 257
Asia
23F, Allied Kajima Bldg.
138 Gloucester Road
Wanchai
Hong Kong
+852 2 572 2201
Fax: +852 2 831 0114
advertisement
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project