Perfect power systems WM.20A01OP User manual

Perfect Power System
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❖FAX no: (800)-246-2346
❖Technical Assistance: [e-mail]
Document No.: 700-MAN, Rev. A
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Due to continuous product improvement, this document is subject to change without prior notice
Power-Lite Wall Mountable 200-490W
Indoor Lighting Inverter

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Notice of Rights
This document contains proprietary and confidential information of the Perfect Power Systems. No
part of this manual may be reproduced, copied, translated or transmitted, in any form or by any
means, without the prior written permission of the company.
Notice of Liability
Information provided in this manual is intended to be accurate and reliable. However, manufacturer.
assumes no responsibility for its use, nor for any infringement of rights of third parties which may
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MANUAFACTURER
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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THE POSSIBILITY OF SUCH DAMAGE.
Trademarks
All trademarks and registered trademarks are the property of their respective owners.
Emergency Lighting Inverter Installation and Operation Manual
Document No.: 700-MAN, Rev. A
September 28, 2023

Table of Contents
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Table of Contents
TABLE OF CONTENTS 3
INTRODUCTION 5
Scope and Audience 5
Safety and Warnings 5
Warranty Registration and Warranty Certificate Request 6
Service 6
CHAPTER 1. SAFETY 7
CHAPTER 2. OVERVIEW 11
2.1 Product Description 12
2.2 Product Features 14
CHAPTER 3. HARDWARE OVERVIEW 17
3.1 Key Components 18
CHAPTER 4. INSTALLATION 20
4.1 Delivery Space Requirements 21
4.2 Site Considerations 22
CHAPTER 5. OPERATION 29
5.1 Starting the Unit 30
5.2 Turning ON the Unit 31
CHAPTER 6. MAINTENANCE 37
6.1 Maintenance 38
6.2 Preventative Maintenance 39
6.3 FRU Replacement 42
CHAPTER 7. TROUBLESHOOTING 43
CHAPTER 8. SPECIFICATIONS 46
APPENDIX A –OPTIONS 48
A.1 Auxiliary Transient Voltage Surge-Suppressor (TVSS) 49

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A.2 Auxiliary Output Circuit Breaker 10 amp (max. 3) 49
A.3 Simple Network Management Protocol 49
A.4 Communication interface, RS232 50
A.5 Floor mount brackets 50
A.6 Remote Status 50
A.7 Facility Interface (Dry Contacts) 50

Introduction
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Introduction
Congratulations on selecting one of the fine products from the leader in power-protection technology. Our wide
product offering includes Uninterruptible Power Systems (UPS), power conditioners, automatic voltage
regulators, and specialty transformers (e.g., computer-grade, medical-grade). Since 1972, the manufacturer has
shipped many of these fine products to discerning customers around the world for use on sensitive equipment
and critical applications.
The Single-Phase Lighting Inverter is a self-contained unit that provides backup power for fluorescent and
incandescent lighting sources such as overhead fixtures and exit signs. If a brownout or power outage occurs,
the inverter provides 90 minutes of lighting power to ensure a safe building evacuation. On line pulse-width
modulation (PWM) handles the switchover from utility power to battery power automatically, without
interruption or manual intervention. Convection cooling allows the inverter to operate virtually silently.
Scope and Audience
This guide is intended to be used as a reference for users responsible for installing, operating, and maintaining
this equipment.
Safety and Warnings
This guide uses the following symbols to draw your attention to certain information
Symbol
Meaning
Description
Note
Notes emphasize or supplement important points of the main text.
Tip
Tips provide helpful information, guidelines, or suggestions for
performing tasks more effectively.
Caution
Cautions indicate that failure to take a specified action could result
in damage to the hardware.
DANGER
The Danger symbol warns users of possible injury or death if
instructions are not followed.
Hazardous
voltage
Hazardous voltage inside. Only authorized personnel may service
this equipment.
Electrostatic
sensitive
Components are Electrostatic Discharge Susceptible (ESDS)
Use a grounded ESD wrist strap.

Introduction
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Warranty Registration and Warranty Certificate Request
Web: www.800pwrsrvc.com under download tab.
Service
If you require assistance, fill out a Service Report Form at www.800pwrsrvc.com, email us at
[e-mail], or call our 24-hour toll free hot line (800-797-7782). Please have the unit’s SERIAL
NO. from the Start-Up label located on the top right front door for speed assistance.
Serial Number:
KVA/Power Rating:
Input Voltage:
Output Voltage:
Manufacturer Date:

Safety
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Chapter 1. Safety
This chapter contains safety precautions to observe when operating or servicing electrical
equipment. The symbols shown are used extensively throughout this manual. Always heed these
precautions because they are essential to the safe operation and servicing of this product.

Safety
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DANGER: This Equipment is intended to be permanently connected. Only factory-trained
or authorized personnel should attempt to install or repair the unit or its battery system.
Improper installation has proven to be the single most significant cause of start-up
problems. High AC and DC electrical voltages are present throughout the unit(s) and
incorrect installation, or servicing could result in electrocution, fire, explosion, or
equipment failure.
DANGER: Read this manual in its entirety before performing the installation, start-up,
operation, or maintenance of the UPS unit or battery systems. Failure to do so could
result in electrocution, fire, explosion, or equipment failure.
DANGER: All power connections must be completed by a licensed electrician who is
experienced in wiring this type of equipment. Wiring must be installed in accordance with
all applicable national and local electrical codes. Improper wiring may cause damage to
the equipment, injury or death of personnel. Verify that all high and low voltage input
power circuits are de-energized and locked out before installing cables or making any
electrical connections.
DANGER: Exercise extreme care when handling unit and batteries to avoid equipment damage or injury to
personnel. Cabinets weigh several hundred pounds.
DANGER: Test lift and balance the cabinets before moving. Maintain minimum tilt from vertical at all times.
The bottom structure will support the unit only if the forklift forks are completely underneath the unit.
DANGER: Observe all battery safety precautions during installation or service of the unit or
batteries. Even with the battery circuit breaker in the off position, the danger of
electrocution may still be present. The battery power to the unit must be locked and
tagged “off” before performing any service or work on the unit. The battery
manufacturer’s safety information and material safety data sheet are located in a pocket
attached to inside the front door of each unit. Failure to follow those instructions and the
instruction listed above and elsewhere in this manual could result in an explosion, fire,
equipment failure, or electrocution.

Safety
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DANGER: All power to the unit must be locked and tagged "off" before performing any
service or work on the unit. failure to do so could result in electrocution.
DANGER: In case of fire involving electrical equipment, only carbon dioxide fire
extinguishers, or those approved for use on electrical equipment, should be used. Use of
water on fires involving live high voltage electrical circuits could present an electrocution
hazard.
DANGER: Extreme caution is required when performing maintenance. Lethal voltages
exist within the equipment during operation. Observe all warnings and cautions in this
manual. Failure to comply may result in serious injury or death. Obtain qualified service
for this equipment as instructed.
DANGER: Be constantly aware that the unit system contains high DC as well as AC
voltages. With input power off and the battery disconnected, high voltage at the filter
capacitors and power circuits should discharge within 30 seconds. However, power circuit
failures can occur, so you should always assume that high voltage might still exist after
shutdown. Verify that power is off using AC and DC voltmeters before making contact.
DANGER: Some components within the cabinets are not connected to chassis ground. Any
contact between floating circuits and the chassis is a lethal shock hazard.
DANGER: Internal battery strapping must be verified by the customer prior to moving this
unit.
This unit contains non-spillable batteries. Keep the unit upright. Do not stack. Do not tip.
Always follow the battery manufacturer’s safety information, located in a pocket attached
to the inside of the door of your unit, to prevent an accident that could result in injury or
death.

Safety
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DANGER: Lead-acid batteries contain hazardous materials. Batteries must be handled,
transported, and recycled or discarded in accordance with federal, state, and local
regulations. Because lead is a toxic substance, lead-acid batteries should be recycled
rather than discarded.
Do not dispose of batteries in a fire, the batteries may explode.
Do not open or mutilate the batteries. Released electrolytes are harmful to the skin and
eyes and may be toxic.
A battery can have a high short circuit current and present a risk of electrical shock. The
following precautions should be observed when working on batteries:
1. Remove watches, rings, or other metal objects.
2. Use tools with insulated handles.
3. Wear rubber gloves and boots.
4. Do not lay tools or metal parts on top of batteries.
5. Disconnect charging source prior to connecting or disconnecting battery terminals.
6. Determine whether battery is inadvertently grounded. if so, remove the source of
the ground. Contact with any part of a grounded battery can result in electrical
shock. The likelihood of such shock will be reduced if such grounds are removed
during installation and maintenance.
7. Lead-acid batteries can present a risk of fire because they generate hydrogen gas.
The following procedures should be followed:
Do not smoke when near batteries.
Do not cause flame or spark in battery area.
8. Discharge static electricity from your body before touching batteries by first
touching a grounded surface.

Overview
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Chapter 2. Overview
This chapter provides an overview of the Single-Phase Lighting Inverter Standard Series. It includes
the system’s theory of operation & features.

Overview
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2.1 Product Description
The Single-Phase Lighting Inverter is manufactured to provide critical power for lighting during a
power outage. The Lighting Inverter meets or exceeds the life safety codes of UL924 and UL1778.
These codes were established to allow emergency lighting inverters to provide critical power to the
lighting circuits during a power failure.
If input power to the inverter is lost during a power outage, the system draws clean sine wave
power automatically from its internal battery supply without any interruption. Power is provided for
90 minutes, sufficient time for safe and orderly evacuation from the facility.
An optional Input or output or both transformer(s) allows a 277V input or output voltage unit. The
internal valve regulated lead-acid (VRLA) maintenance-free batteries provide 90 minutes of backup
power. When input power is restored, the Lighting Inverter resumes normal operation automatically
and begins recharging the batteries immediately.
An optional internal bypass circuit maintains power to the load in case an internal unit failure
occurs. Comprehensive monitoring capabilities include a Liquid Crystal Display (LCD) panel and five
dry relay contacts for remote monitoring.
Table 0-1. Power-Lite Cabinet

Overview
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Note: Customer to supply hardware and to ensure the wall structure and material is proper
for the load handling of the unit
Table 2-2. Model Numbers, Wall/Floor Mountable Lighting Inverter
90 minute battery backup (Batt. 24 VDC)
Watts
Model
Numbers
Input/Output
BTU/HR*
Cabinet
Dimension
(W”xH”xD”)
200W
WM.20A01OP
120V/120V
216
24 X 17 X 9.5
WM.20R01OP
277V/120V
233
WM.20R25OP
277V/277V
233
WM.20A25OP
120V/277V
233
300W
WM.30A01OP
120V/120V
305
“
WM.30R01OP
277V/120V
353
WM.30R25OP
277V/277V
353
WM.30A25OP
120V/277V
353
490W
WM.49A01OP
120V/120V
499
“
WM.49R01OP
277V/120V
543
WM.49R25OP
277V/277V
543
WM.49A25OP
120V/277V
543
(NOTE) * BTU/HR ARE APROX. NUMBER WITH TOLERANCE ± 15% FOR ALL MODELS

Overview
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2.2 Product Features
The Single-Phase double conversion on-line Emergency Lighting Inverter uninterruptable,
clean, Single-Phase power to your critical systems while keeping batteries continuously
charged and provide a back-up in the event of a utility power failure.
If a power failure lasts longer than the rated UPS backup time, your UPS will shut
down systematically, avoiding battery discharge. As soon as utility power is restored,
the UPS will automatically switch to utility power and start recharging the batteries.
As shown in the Single Line diagram, Figure 2-1
❖An input filter reduces transients on the mains
❖To maintain full battery charge, AC-power is rectified and regulated in the rectifier feeding power
to the inverter and battery converter.
❖DC power is converted to AC in the inverter passing it on to the load.
❖Power is maintained from the battery during powerfailure. The converter increases voltage to the
inverter.
Figure 0-1. Power-Lite Single line Diagram (typical)

Overview
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2.2.1 Efficiency Optimizer function
The Efficiency Optimizer Function is a new feature of your UPS that adds cost effectiveness, provides
minimal power loss and reduced power consumption. Alternating between bypass and on-line
modes is achieved automatically and in accordance with the conditions of the utility power to obtain
greatest efficiency, on-line mode may function during times of intermittent utility power availability
and bypass mode when power flows smoothly. Irregularities can be detected in less than a second,
and on-line mode reactivated immediately. Switching back to online mode occurs when the input
voltage exceeds ±10% of nominal (±15% selectable), when the input frequency exceeds ±4Hz of
nominal or when no input line voltage is detected.
An available option allows default operation in the on-line mode. Bypass can be activated from the
LCD panel, though on-line mode can be run permanently if preferred.
2.2.2 Free Run Mode
The UPS operates in free run mode when input frequency is outside of the selected input frequency
range. Free run mode is when output frequency does not match input frequency. When starting the
UPS, the frequency regulation detected is 50 or 60 Hz ±0.25Hz.
2.2.3 Diagnostic tests
When you start the UPS, a diagnostic test is automatically executed that checks
electronics, battery, and reports any problems on the LCD display.
An advanced battery management system always monitors the conditions of the batteries
sends any forewarnings if replacement is needed. Otherwise, every 30 days of normal
mode operation, a battery discharge test is performed, and any problems reported on the
LCD display.
Except during the first 24 hours after startup while the UPS is in charging mode (see 2.2.6),
diagnostic tests can be performed manually from the front panel at any time.

Overview
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2.2.4 Bypass Enable:
Under the Following Conditions, the bypass will be enabled:
1. Overload
2. Inverter failure
3. Over temperature
4. DC bus failure

Hardware Overview
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Chapter 3. Hardware Overview
This chapter provides an overview of the system hardware.
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Hardware Overview
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3.1 Key Components
Figure 3-1 shows the key system components and describes them.
Figure 3-1. Power-Lite Key Components
BATTERY
PLUG
BATTERY VENT
SHOULD BE
NEAREST TO
LOUVERS ON
BOTH SIDES
1
3
2
4

Hardware Overview
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Table 3-1. Key Components description
Callout
Components
Function
1
Input / Output / DC Connection
Conveniently located close to knock outs terminal blocks
for Input, Output and Battery connection.
2
Optional Aux. Output Breaker(s) Connection
Auxiliary Norm ON C.B options,1pole, 20amp (maximum
of 3 each).
3
LCD Panel
Refer to Section 5.2 for detail.
4
Fan and Fan grill
This fan works as exhaust air and should not be
abstracted by objects for free air flow.
5
Batteries
Each system includes 2 batteries, for a 24VDC power.

Installation
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Chapter 4. Installation
This chapter describes how to install the system. It includes pre-installation information along with
guidelines for storing the system for future use.
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