LifeSafety Power Helix RH150 Series User manual

LifeSafety Power, Inc. | PH 888.577.2898 | [e-mail]
RH Rackmount Installation Manual
P03-051 Rev A01

RH Series Rackmount Helix Installation Manual
ii iii
Notes and Warnings ......................................iii
Symbol Definitions ............................................................ iii
Warnings.................................................................... iii
Regulatory Information ......................................................... iii
Conventions Used Within this Manual.............................................. iii
Introduction............................................iv
Section 1 – Installation ....................................1
1.1 Mounting the Rack Mount Supply into a Standard 19" Rack ...........................1
1.2 HELIX RH Rackmount Field Wiring Connections....................................2
1.2 HELIX RH Rackmount Field Wiring Connections....................................4
1.2 HELIX RH Rackmount Field Wiring Connections - continued ..........................5
1.3 Internal Pre-Configuration.....................................................6
1.4 Making the Wiring Connections.................................................8
Section 2 – Configuration and Usage........................... 9
2.1 Removing the Faceplate of the Enclosure.........................................9
2.2 Disabling Faults ............................................................9
2.3 Status LEDs ...............................................................9
2.4 Remote Access via Ethernet ..................................................10
2.5 HELIX Audible Alarms .......................................................10
Section 3 – Specifications ................................. 11
3.1 Electrical Specifications .....................................................11
Table of Contents
The Helix RH rackmount series is factory preconfigured for
either 120VAC or 230VAC - verify the proper AC Input voltage
for the model being installed
i

RH Series Rackmount Helix Installation Manual
ii iii
Notes and Warnings
Symbol Definitions
The following symbols are used throughout this manual
hThis symbol is intended to alert the installer of shock
hazards within the enclosure. Service should only be
performed by qualified service personnel
iThis symbol is intended to alert the installer of im-
portant information intended to help the installer
avoid personal injury or property damage
Warnings
hInstallation and service should be performed only by
qualified service personnel and should conform to
all local codes
h
To reduce the risk of electric shock or fire, do not
expose this equipment to rain or moisture
i
This equipment shall be installed in a manner which
prevents unintentional operation by employees,
cleaning personnel, or others working in the prem-
ises, by falling objects, customers, building vibra-
tion, or similar causes
i
This equipment is not intended for use within the pa-
tient care areas of a Health Care Facility
h
Replace fuses only with the same type and rating as
indicated in the specifications section of this manual.
i
To prevent impaired operation, ensure that all wiring
is routed and secured to prevent accidental open or
short circuit conditions
i
The system and any batteries (if used) should be
tested at least once per year to ensure proper opera-
tion
Regulatory Information
The equipment discussed within this manual has been test-
ed to the following standards:
• UL294, UL603, UL864, UL1076, UL1481,
UL2044, UL2572
• ULC S318, ULC S319, ULC S527
• CSA C22.2 #107.1, CSA C22.2 #60950
FCC Information
Note: This equipment has been tested and found to comply
with the limits for a Class A digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when
the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio fre-
quency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interfer-
ence to radio communications. Operation of this equipment
in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interfer-
ence at his own expense
Conventions Used Within this Manual
Positional information (e.g. top, bottom, up, down, left,
right, etc.) is referenced with the board or enclosure in the
orientation shown in the illustrations in this manual

RH Series Rackmount Helix Installation Manual
iv 1
Installation and Operation
Introduction
DC Product Power Outputs Description
RH75 Series 75W 2 Single Voltage 6A @ 12VDC or 3A @ 24VDC / dual output
RH150 Series 150W 2 Single Voltage 12A @ 12VDC or 6A @ 24VDC / dual output
RH250 Series 250W 2 Single Voltage 20A @ 12VDC or 10A @ 24VDC / dual output
Remote monitoring
RH75-XN 75W 8, 16 Single Voltage / Network 6A @ 12VDC or 3A @ 24VDC / multiple outputs / network
RH150-XN 150W 8, 16 Single Voltage / Network 12A @ 12VDC or 6A @ 24VDC / multiple outputs / network
RH250-XN 250W 8, 16 Single Voltage / Network 20A @ 12VDC or 10A @ 24VDC / multiple outputs / network
The LifeSafety Power Helix RH rackmount power supplies are
a redundant power source for use in the Access Control indus-
try. Two identical FPO power supplies are combined in a single
enclosure with the Helix module to provide a single output
voltage. In the event of a failure of the main power source, the
Helix module will automatically switch the output to the back-
up FPO power supply. Designed to fit neatly into standard 19"
equipment racks, the streamlined cabinetry and exceptional
features combine to significantly reduce installation and ser-
vice costs. Features include removable terminal strips for field
wiring, input and output surge suppression, automotive blade
fuses for improved reliability, a front removable chassis face
plate for serviceability and is enclosed in a 16 gauge steel 2U
rack mount chassis.
The Helix RH Series of single voltage DC power supplies pro-
vide 12 or 24 VDC power at 75W, 150W and 250W of total
power. They are available with 8 or 16 outputs and the capabili-
ty of remote monitoring of the supply's parameters via internet
or intranet connection. Ideal for Access Control, CCTV, Burglar,
Fire, or Mass Notification applications. Helix provides added
system integrity by automatically switching to the backup
power supply in the event of a problem with the primary power
supply. Each output is fused at 3A, but may be increased up to
7.5A by the installer for powering high power devices.
i Due to the nature of this product and its intended ap-
plications, the limitations and conditions of installation of
the Helix power supply must be fully understood by the sys-
tem planner & installer. Please thoroughly read and under-
stand the following sections before using the Helix power
supply.
Redundancy
The Helix RH series of power supplies adds a layer of redun-
dancy over the typical FPO power supply. Only the FPO power
supply is redundant - any distribution in the system is not re-
dundant. Also, the Helix cannot overcome any problems in the
field wiring or load devices - if a short circuit shuts down the
main supply, the backup supply will also be shut down by this
short circuit.
Primary AC Connection
Both FPO power supplies must be powered from the same AC
branch circuit. Powering the two internal FPO power supplies
from different branch circuits could lead to possible improper
operation and loss of output voltage.
Backup Battery
FPO2 must have battery backup connected for proper opera-
tion. A battery should not be connected to FPO1 - this is to
prevent cycling between FPO1 and FPO2 during battery dis-
charge on loss of AC.
Fault Contacts
The fault contacts of BOTH FPO power supplies must be moni-
tored to annunciate failure of either power supply. The fault
contacts may either be monitored separately or series/paral-
leled as needed for a common fault indication. Use of a Netlink
network monitoring module is also highly recommended.
Product Description
HELIX RH Series
Limitations

RH Series Rackmount Helix Installation Manual
iv 1
Installation and Operation
Use the following procedure when mounting an RH series
supply into a standard EIA 19" equipment rack.
1. Ensure any internal configuration (voltage selection, fault
detection settings, etc) are complete before mounting.
See Section 1.3 of this manual for more information.
2. Securely mount the included ears to the enclosure sides
using the eight included 6-32 countersunk screws (four
per ear).
3. Locate the rack-mounting holes in the ears of the en-
closure. (Figure 1)
4. Slide the enclosure into an open 2U location in the rack
5. Center the enclosure in the rack and secure with the
four 10-32 x 3/4" screws provided.
NOTE: Use rails or other appropriate support for heavy
enclosures. Keep heavier components near the bottom of
the rack to reduce the risk of toppling of a top-heavy rack.
1.1 Mounting the Rack Mount Supply into a Standard 19" Rack
The following pages cover the installation of the Helix RH Series rack-mountable power supplies.
Section 1 – Installation
2 3 4 5 6 7 8 F F1 10 11 12 13 14 15 169
Figure 1 - The Enclosure Mounting Holes
The Helix RH rackmount series is factory preconfigured
for either 120VAC or 230VAC - verify the proper AC Input
voltage for the model being installed
i

RH Series Rackmount Helix Installation Manual
2 3
Installation and Operation
1.2 HELIX RH Rackmount Field Wiring Connections
IRH models are pre-configured for AC Input and DC Output voltage. All models are single voltage and, although FAI Inputs are
present, FAI control is not available.


  

RH Series Rackmount Helix Installation Manual
2 3
Installation and Operation
The following are basic descriptions. Refer to the appropriate section for more detailed information. Note that the front and
back panels may appear different based on the configuration of your system.
1Main AC Power Switch / Circuit Breaker - This is the
main AC power switch for the enclosure. This switch lights
when power is on and also has a built-in circuit breaker
rated at 8A. If the circuit breaker trips, reset it by cycling
the switch to off then back to on.
2AC Line Input - This is the connector for the AC line
cord. Plug the included computer-style line cord into this
connector. Connect the other end of the cord to the power
strip inside the rack or another suitable AC power receptacle.
IHelix RH models are preconfigured for either 120VAC
or 230VAC input - Verify the input voltage for the model
being installed prior to applying AC power.
3Ethernet Connection (Optional) - This is the RJ45 jack
for the network connection for the internal NetLink board (if
present). The ethernet cable is plugged into this jack. This
jack is only present on Helix series power supplies with a
model number ending in "N". See the corresponding Net-
Link manual for more information.
4Distributed Outputs - These are the redundant zone
outputs. The Helix Series is available with 8 or 16 outputs.
The output numbers correspond with the output zone num-
bers on the front panel. Bulk Output models without distri-
bution will not have these terminals.
IHelix RH models are preconfigured for either 12VDC
or 24VDC output - Verify the output voltage for the model
being installed prior to connecting field wiring.
5Power Supply Connections - These are the connections
to the internal FPO Power Supplies. Only the following con-
nections should be made - leave all other terminals discon-
nected:
Power Supply 1
ACF & SF - These are the AC and System Fault outputs for
FPO1. From the factory these are set to provide a closed
connection when there is no fault. These fault connections
must be monitored along with the fault outputs of FPO2 to
ensure notification of problems with either FPO power supply.
Power Supply 2
Bat (±) - This is where the battery connection is made. The
voltage of the battery set must match the voltage of the
Helix model being installed. Do not connect a battery to the
Bat +/- terminals of Power Supply 1.
ACF & SF -These are the AC and System Fault outputs for
FPO2. From the factory these are set to provide a closed
connection when there is no fault. These fault connections
must be monitored along with the fault outputs of FPO1
to ensure notification of problems with either FPO power
supply.

RH Series Rackmount Helix Installation Manual
4 5
Installation and Operation
1.2 HELIX RH Rackmount Field Wiring Connections
In order to monitor both FPO power supplies for problems, it is imperative that AC and System Fault contacts on both FPO power
supplies be monitored. They may either be monitored separately or commoned into one or two outputs.
For this application, simply wire all four
relay connections separately as needed
For this application, series connect the NO
fault contacts for the Sys Fault and also
for the AC Fault
SYS FLT AC FLTSYS FLT AC FLT
FPO1
SYS FLT
FPO1
SYS FLT
FPO1
AC FLT
FPO1
AC FLT
FPO1FPO1
CC NCNC CC NCNC
SYS FLT AC FLTSYS FLT AC FLT
FPO2
SYS FLT
FPO2
SYS FLT
FPO2
AC FLT
FPO2
AC FLT
FPO2FPO2
CC NCNC CC NCNC
AC FLTAC FLT
SYS FLT AC FLTSYS FLT AC FLT
FPO1FPO1
CC NONO CC NONO
SYS FLTSYS FLT
SYS FLT AC FLTSYS FLT AC FLT
FPO2FPO2
CC NONO CC NONO
Seperate outputs
Common System Fault, Common AC Fault (Contacts OPEN on fault)
For this application, series connect all NO
fault contacts
AC &
SYS FLT
AC &
SYS FLT
SYS FLT AC FLTSYS FLT AC FLT
FPO1FPO1
CC NONO CC NONO
SYS FLT AC FLTSYS FLT AC FLT
FPO2FPO2
CC NONO CC NONO
Single Fault Output (Contacts OPEN on fault)

RH Series Rackmount Helix Installation Manual
4 5
Installation and Operation
For this application, parallel the NC fault
contacts for the Sys Fault and also for the
AC Fault
I See section 1.3.4 for information on
changing to a NO Fault contact output.
SYS FLTSYS FLT AC FLTAC FLT
SYS FLT AC FLTSYS FLT AC FLT
FPO1FPO1
CC NCNC CC NCNC
SYS FLT AC FLTSYS FLT AC FLT
FPO2FPO2
CC NCNC CC NCNC
Common System Fault, Common AC Fault (Contacts CLOSE on fault)
For this application, parallel all NC fault
contacts
ISee section 1.3.4 for information on
changing to a NO Fault contact output.
1.2 HELIX RH Rackmount Field Wiring Connections - continued
AC &
SYS FLT
AC &
SYS FLT
SYS FLT AC FLTSYS FLT AC FLT
FPO1FPO1
CC NCNC CC NCNC
SYS FLT AC FLTSYS FLT AC FLT
FPO2FPO2
CC NCNC CC NCNC
Single Fault Output (Contacts CLOSE on fault)

RH Series Rackmount Helix Installation Manual
6 7
Installation and Operation
Configuration internal to the rack mount enclosure is re-
quired on RH series power supplies prior to installation into
a rack. Ensure all power is disconnected before performing
this initial configuration.
1.3.1 Removing the Top Cover of the Enclosure
Use the following steps to remove the top cover of the rack-
mount enclosure and gain access to the configurable settings.
(Figure 2)
1. Lay the enclosure flat on its bottom surface
2. Remove and retain the six philips head screws from
the top cover
3. Remove the top cover and set it aside in a safe location
When configuration is complete, reverse the removal pro-
cedure to replace the cover.
2 3 4 5 6 7 8 F F1 10 11 12 13 14 15 169
Figure 2 - The Top Cover Mounting Screws
1.3.2 Enabling or Disabling Battery Presence Detection
Each FPO power supply may be set to detect a missing bat-
tery set. If required, battery presence detection should only
be enabled on the secondary FPO, as the primary FPO does
not receive a battery set. To enable battery presence detec-
tion, place the BATDET jumper ON. To disable battery pres-
ence detection, remove the BATDET jumper, or place it on
only one pin. (See #2 in Figure 3)
1.3.3 Enabling or Disabling Earth Ground Detection
Each FPO power supply is able to detect earth ground
faults. To enable earth ground fault detection, place the
EARTH GND DET jumper ON. To disable earth ground fault
detection, remove the EARTH GND DET jumper or place it
on only one pin. (See #1 in Figure 3)
IOnly one device in a system should have earth ground
fault detection enabled or conflicts may occur. In addition,
only ONE FPO power supply in a HELIX RH system should
have earth ground fault detection enabled or a conflict may
occur.
1.3.4 Changing the Operation of the Fault Contact Output
From the factory, RH series supplies are shipped with a
normally open fault contact operation (relay contact closed
until a fault occurs).
This operation may be switched to a normally closed con-
tact (relay contact open until a fault occurs) by moving a
wire on each fault contact.
To switch from the default NO fault contact to a NC contact,
locate the fault output terminal strip on the FPO power sup-
ply. Identify the contact you want to change (SYS FLT or AC
FLT), loosen the terminal, remove the wire from the NO ter-
minal, move it to the NC terminal, and tighten the terminal.
IThis must be done on both HELIX FPO power supplies.
1.3 Internal Pre-Configuration

RH Series Rackmount Helix Installation Manual
6 7
Installation and Operation



RH150 or RH250
Earth GND
Battery DETECT
Voltage SELECT








Earth GND
Battery DETECT
Voltage SELECT



FPO75



Figure 3 - Configuring the Internal FPO Power Supplies in a HELIX RH Series Supply

RH Series Rackmount Helix Installation Manual
8 9
Configuration and Usage
Field wiring connections are made on the rear panel after in-
stalling the Helix enclosure into the rack. Field wiring connec-
tions are made to the removable terminal strips, which accept
AWG 12-22 wire. The back panel is also where the main AC
power and optional ethernet connections are made.
1.4.1 Helix RH Series Field Wiring
The RH series has terminals for various inputs and outputs
as follows:
Distributed Outputs
Helix Series models with distributed outputs provide DC
voltage on each output terminal pair on the rear of the en-
closure. Depending on model, there will be either 8 or 16
output zones. The output zone numbers will corrrespond
with the the numbering of the zones on the front panel. Bulk
output Helix Series models will not have these outputs.
Battery (Bat+, Bat–)
This pair of terminals is for connection to a backup battery
set, if required for the installation. Polarity is noted adjacent
to the terminals. These terminals also charge the battery set.
A battery set should only be connected to the secondary
power supply.
iObserve polarity or damage to the system will occur.
Ensure the voltage of the battery set matches the voltage
of the power supply.
iIt is the installer's responsibility to determine the
proper battery size for the installation. See the Specifica-
tions section for battery standby current requirements.
DC1+, DC1–
The main DC output of the FPO power supply. The full
current of the FPO is available on these terminals at all
times.
AC Fault (ACF)
These terminals provide the AC Fault relay output from the
FPO power supply. This relay signals when the internal FPO
power supply detects a low or missing AC input voltage.
From the factory this output is set to provide a CLOSED
connection when there is no fault. During a fault condi-
tion, the connection between these terminals will OPEN.
To reverse this operation, see Section 1.3.6 of this manual.
System Fault (SF)
These terminals provide the System Fault relay output
from the FPO power supply. This relay signals when any
of the following conditions occur:
• Missing Battery (If BAT DET jumper is ON)
• Earth Ground Fault (If EARTH GND DET jumper is ON)
• Battery voltage out of range
• DC output voltage out of range
• Ruptured fuse
• Accessory Board Fault
• Internal Fault
From the factory this output is set to provide a CLOSED
connection when there is no fault. During a fault condi-
tion, the connection between these terminals will OPEN.
To reverse this operation, see Section 1.3.6 of this manual.
1.4.2 Main AC Power Connection
Verify the proper AC input voltage for the model being in-
stalled prior to connecting the system to AC power.
i Connecting a 120VAC model to a 230V AC power
source will damage the system and void the warranty.
1.4.3 Ethernet Connection (Optional)
Helix RH models with a model number ending in "N" contain
a Netlink communication ethernet module. The Netlink al-
lows access to the Helix rackmount via the internet or local
intranet. See Section 2.5 for more information.
To make the ethernet connection, connect one end of a stan-
dard (RJ45) ethernet cable to the connector on the back of
the Helix rackmount chassis. Connect the other end of the
ethernet cable to a live network connection.
NOTE: The internal Netlink communication module must
be configured before connecting to a network. See the in-
cluded Netlink manual for more information.
1.4 Making the Wiring Connections

RH Series Rackmount Helix Installation Manual
8 9
Configuration and Usage
This section describes the final configuration as well as op-
eration details for the Helix RH series power supplies.
2.1 Removing the Faceplate of the Enclosure
Use the following steps to remove the faceplate of the rack-
mount enclosure and gain access to the front boards.
1. Remove and retain the five philips head 6-32 screws
from the faceplate. DO NOT remove the four 10-32
screws securing the enclosure to the rack.
2. Carefully remove the faceplate and set it aside in a
safe location
When configuration is complete, reverse the removal pro-
cedure to replace the cover, taking care to align the LEDs
with the holes in the faceplate. (See Figure 4)
2.2 Disabling Faults
Sometimes it is desirable to disable fuse fault detection for
individual zones. This allows removal of the fuse for spe-
cific unused zones or zones with unfinished wiring.
Faults can be disabled via the block of switches on the top
right of each front board (See Figure 5). Note that the color
of this switch block may vary. Switch numbers correspond
with zone numbers of the board (Switch 1 disables faults
for Zone 1, etc.). Switch settings are as follows:
• ON Fault Detection Enabled
• OFF Fault Detection Disabled
2.3 Status LEDs
Each front board has nine LEDs (See Figure 5). The eight
green LEDs give the voltage availability of the associated
zone. The yellow LED will light if a fault condition is detected.
Section 2 – Configuration and Usage
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
FLT
1 2 3 4 5 6 7 8
3 3 3 3 3 3 3 3
—
1
B1 B2
JP1
2 3
2 3 4 5 6 7 8 F F1 10 11 12 13 14 15 169
Figure 5 - The Front Board
Figure 4 - Removing the Faceplate

RH Series Rackmount Helix Installation Manual
10 11
Specifications
2.5 HELIX Audible Alarms
The Helix board has an audible alarm that will sound on various fault
conditions that require immediate attention to maintain redundancy.
(See Figure 7)
The fault conditions include:
• The two FPO boards connected are not set to the same output voltage
(i.e. one supply set for a 12V Output and the other set for 24V)
• The output voltage of the backup FPO power supply has gone out of
range (high or low)
• The output voltage of both FPO power supplies is abnormal
• Improper power up. One FPO power supply was powered before the other.
• Bad FPO power supply or other internal problem - Contact LifeSafety Power
2.4 Remote Access via Ethernet
Helix RH Series power supplies with model numbers end-
ing in "N" may be accessed over the internet or local intranet
via the ethernet port on the back of the enclosure (Figure
6). Functionality varies by model type. This section only
gives basic information. See the included Netlink manual
for more information.
The RH Series has full Netlink NL4 functionality. See the NL4
network communication module manual for information on
using and configuring the NL4.
Features available with the NL4 in an Helix product include
monitoring and email reporting of voltage, battery status,
AC and System Fault status and other parameters. Addition-
ally, a periodic status report can be emailed.
Figure 6 - Ethernet Network Connection
Figure 7 - Audible Alarm

RH Series Rackmount Helix Installation Manual
10 11
Specifications
Section 3 – Specifications
3.1 Electrical Specifications
Helix RH Series Power Supplies
Specifications RH75 Series RH150 Series RH250 Series
AC Input Voltage 120/230VAC
±15% at 50-60Hz
120/230VAC
±15% at 50-60Hz
120/230VAC
±15% at 50-60Hz
Power 100 Watts 200 Watts 300 Watts
Standby Current 100mA 100mA 100mA
Rated Current for UL603 Proprietary
Alarm Installations
Current 1.25A maximum from
all circuits in system
2.5A maximum from
all circuits in system
2.5A maximum from
all circuits in system
DC Output at 12V Setting Voltage 12.5V ±0.5V nominal 12.5V ±0.5V nominal 12.5V ±0.5V nominal
Max Current 6A 12A 20A
Ripple 120mV 120mV 120mV
Regulation ±2% ±2% ±2%
Efficiency 85% (120VAC
60Hz In, Full Load,
No Batt)
88% (120VAC
60Hz In, Full Load,
No Batt)
89% (120VAC
60Hz In, Full Load,
No Batt)
DC Output at 24V Setting Voltage 25.0V ±0.5V nominal 25.0V ±0.5V nominal 25.0V ±0.5V nominal
Max Current 3A 6A 10A
Ripple 120mV 120mV 120mV
Regulation ±2% ±2% ±2%
Efficiency 85% (120VAC
60Hz In, Full Load,
No Batt)
88% (120VAC
60Hz In, Full Load,
No Batt)
89% (120VAC
60Hz In, Full Load,
No Batt)
Battery Size & Type 4-40AH Lead Acid
or Gel Cell
4-80AH Lead Acid
or Gel Cell
4-80AH Lead Acid
or Gel Cell
Charge Current 1A (±10%) Maximum
(Adjustable via
PowerCom Software)
2A (±10%) Maximum
(Adjustable via
PowerCom Software)
2A (±10%) Maximum
(Adjustable via
PowerCom Software)
Fuse Ratings DC1 (Internal) ATM 7.5A ATM 15A ATM 30A
DC2 (Internal) ATM 7.5A ATM 15A ATM 30A
Battery (Internal) ATM 7.5A ATM 15A ATM 30A
Distributed Zones ATM 3A ATM 3A ATM 3A
BTU Output BTU 33 66 109
Fault Setpoints Low AC 95V (±6%) 95V (±6%) 95V (±6%)
Earth GND 2000 Ohms 2000 Ohms 2000 Ohms
Output Voltage ±10% of nominal ±10% of Nominal ±10% of Nominal
Batt Voltage ±10% of nominal ±10% of Nominal ±10% of Nominal
Batt Presence 6–15V (12V Setting),
11–29V (24V Setting)
6–15V (12V Setting),
11–29V (24V Setting)
6–15V (12V Setting),
11–29V (24V Setting)
Fault Relay Contacts AC FLT 1A at 24VDC 1A at 24VDC 1A at 24VDC
SYS FLT 1A at 24VDC 1A at 24VDC 1A at 24VDC
Distributed Outputs
Count 2, 8, or 16 2, 8, or 16 2, 8, or 16
Current 3A (7.5A max with
fuse change)
3A (7.5A max with
fuse change)
3A (7.5A max with
fuse change)

RH Series Rackmount Helix Installation Manual
12 PB
Section
P03-051 Rev A01 10/16
Important: All information, including illustrations, is believed to be reliable. Users, however, should independently
evaluate the suitability of each product for their particular application. LifeSafety Power makes no warranties as to the
accuracy or completeness of the information, and disclaims any liability regarding its use. LifeSafety Power’s only ob-
ligations are those in the LifeSafety Power Standard Terms and Conditions of Sale for this product, and in no case will
LifeSafety Power or its distributors be liable for any incidental, indirect, or consequential damages arising from the
sale, resale, use, or misuse of the product. Specifications are subject to change without notice. In addition, LifeSafety
Power reserves the right to make changes—without notification to Buyer—to processing or materials that do not affect
compliance with any applicable specification.
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© 2016 LifeSafety Power, Inc.All rights reserved
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