Solatron™: Three-Phase Voltage Regulator —
100–200 kVA
Three-Phase Power Conditioner
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Page: 2
CONTENTS
Table of Contents. . . . . . . . . . . . . . . . . . . . . . . 2
Important Safety Instructions . . . . . . . . . . . . . . . .3
Receiving and Unpacking. . . . . . . . . . . . . . . . . . . 5
Moving and Lifting . . . . . . . . . . . . . . . . . . . . . . 5
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mechanical Considerations . . . . . . . . . . . . .6
Electrical Considerations . . . . . . . . . . . . . .8
To Maintain UL1012 Listing . . . . . . . . . . . . .8
Lug Size Tables . . . . . . . . . . . . . . . . . . .8
To Install the Solatron™ Unit . . . . . . . . . . . . . . . . . 9
Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Normal Operation . . . . . . . . . . . . . . . . . . . . . 10
Automatic Internal Bypass . . . . . . . . . . . . . . . . . 11
Circuit Breaker Operation . . . . . . . . . . . . . . . . . 12
Surge Suppression . . . . . . . . . . . . . . . . . . . . . 12
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Status Display . . . . . . . . . . . . . . . . . . . . . . . 13
Home Screen . . . . . . . . . . . . . . . . . . . 14
Main Menu . . . . . . . . . . . . . . . . . . . . 14
Events Log Menu . . . . . . . . . . . . . . . . . 15
Search Events . . . . . . . . . . . . . . . . . . . 15
Events Log . . . . . . . . . . . . . . . . . . . . 15
Set Date/Time Menu . . . . . . . . . . . . . . . 16
Set Date/Time . . . . . . . . . . . . . . . . . . 17
Adjust Output Target . . . . . . . . . . . . . . . 17
Serviceable Parts . . . . . . . . . . . . . . . . . . . . . . 18
Page: 3
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
CONTENTS
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 19
General Condition . . . . . . . . . . . . . . . . . 19
Maintenance Log . . . . . . . . . . . . . . . . . . . . . 20
Troubleshooting . . . . . . . . . . . . . . . . . . . . . 20
Troubleshooting Table . . . . . . . . . . . . . . . 21
Specifications . . . . . . . . . . . . . . . . . . . . . . . 22
Contact Information . . . . . . . . . . . . . . . . . . . 23
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . 23
FIGURES
Figure 1: Component Layout. . . . . . . . . . . . . 5
Figure 2: Overview . . . . . . . . . . . . . . . . .6
Figure 3: Status Display . . . . . . . . . . . . . . .6
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Page: 4
Important Safety Instructions
The Solatron™ unit and related equipment must be installed, operated, and maintained in accordance with
this manual. After complying with all of the information in this manual, it should be saved for future reference.
!
WARNING
Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
• Only properly qualied and trained personnel should be permitted to install, service, and operate this
equipment. Follow all safe electrical work practices. Use all applicable personal protective equipment (PPE).
• The unit is intended to be installed where it is not accessible to the general public. Access to this equipment
must be limited to properly qualied and trained personnel.
• Dangerous and potentially lethal voltages are present inside the enclosure of the unit; the hazard of electric
shock, arc ash, and explosion are present.
• Under no circumstances should anyone be permitted to operate or energize the unit without all covers in
place, doors closed, and all safeguards in place.
• Under no circumstances should anyone be permitted to reach into or perform any action within the
enclosure for maintenance, decommissioning, or other purposes without properly de-energizing and
grounding the unit. The transformer coils must be discharged of any potential static charge.
• The unit must be installed in accordance with all applicable federal, state, and local codes.
• The unit enclosure must be properly grounded using the provided ground connections.
• The unit must be installed a safe distance from any combustible material unless separated and shielded
by appropriate re resistance and heat dissipative barriers in accordance with the National Electrical Code
(NEC) and all applicable local codes.
• The unit must only be installed in locations suitable for the level of protection afforded by the enclosure
type.
• No claim is made that these instructions cover all possible details or variations in unit manufacture or
address all possible contingencies that might be encountered during the installation, operation, or
maintenance of the unit.
• All questions, concerns, informational needs, or problems that arise regarding receiving, unpacking,
moving, lifting, storing, installing, operating, or maintaining the unit which are not sufciently addressed
herein should be referred to SolaHD.
Page: 5
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Receiving and Unpacking
Prior to removing any shipping or packing material, the unit must be immediately inspected upon receipt for
any indication of damage sustained during shipping. During unpacking, inspect the inside and outside of the
unit for any dents, scrapes, bent or loose parts, water entry, moisture, or any other signs of damage. If there is
any reason to believe that the unit has been damaged:
• Note the damage on the shipping documentation and notify the carrier.
• Document and photograph any damage found.
• Contact the shipping company to le a claim if necessary or SolaHD Customer Service.
Moving and Lifting
The Solatron™ unit must be lifted by the base only using a pallet jack or forklift.
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
• The center of gravity may not be in the center of the unit.
• Use appropriate procedures for handling unbalanced loads.
• Do not lift the Solatron™ from the top.
• Ensure that the capacity of the lifting equipment is appropriately sized for lifting and moving the Solatron™.
• Contact SolaHD Technical Support if there are any questions or concerns regarding moving or lifting the
unit.
Storage
The Solatron™ unit must be lifted by the base only using a pallet jack or forklift.
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
• Prior to installation, the Solatron™ must be stored in a location which prohibits the entry of liquid or
moisture into the enclosure.
• Condensation must not be allowed to form on the internal components.
• Contact SolaHD Technical Support if there are any questions or concerns regarding storage.
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Page: 6
Installation
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
The Solatron™ unit must be installed in an area appropriate for industrial electrical equipment, which
includes but is not limited to the following characteristics.
• Concrete or other non-combustible, non-ammable oor adequate to support the weight of the unit.
• Adequate ventilation.
• Free from combustible or ammable materials, liquids, gases, or dust.
• Secure from unauthorized access by the general public.
• Consistent with the NEMA duty rating of the enclosure (NEMA 1).
• Contact SolaHD Technical Support if there are questions or concerns regarding installation.
Mechanical Considerations
Cable entry and exit must be made through the sides or top of the enclosure. Cable entry and exit
penetrations must be made by the end user. Debris from creating cable penetrations must not be allowed
on any component within the enclosure. The input and output connection locations and phase sequence are
shown in Figure 1.
The unit must be installed with the clearances shown in Figure 2.
Only the top, front, and rear enclosure panels are removable. The front panel can only be removed with the
input circuit breaker handle in the OFF (OPEN) position.
Figure 1: Component Layout
Output
Distribution
Blocks
Remote
Alarm
Contacts
Control
Board
Front View
Input
Circuit
Breaker
Auxiliary
Circuit
Breakers
A B C G
G N A B C
Page: 7
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Figure 2: Overview
Required Clearances:
Top - 36”
Front - 36”
Rear - 12”
Sides - 10”
Mounting Holes (4x):
3/8” Clearance
42” x 32.375”
Figure 3: Status Display
4 x 20 Character
3-Button Interface
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Page: 8
Electrical Considerations
The nominal input voltage applied to the Solatron™ unit shall be as listed on the unit nameplate. The nominal
operating frequency must match the nameplate frequency. The maximum continuous load must not exceed
the kVA nameplate rating. The unit must be grounded using the provided ground lugs.
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
The unit must be installed in a location appropriate for industrial electrical equipment, which includes
but is not limited to the following characteristics
• Compliance with IEEE 519.
• The input voltage waveform shall maintain 5% or less THD. If the THD percentage exceeds this value, the
unit’s performance may be adversely affected.
To Maintain UL1012 Listing:
Each AC output power circuit shall be provided with overcurrent protection for all ungrounded conductors.
The voltage rating of the overcurrent protection shall not be less than the rating of the circuit which with
which it is used. The overcurrent protection device shall be a circuit breaker or a fuse evaluated for use
as branch circuit protection. The rating of the overcurrent protection device must meet NEC Article 240
requirements.
The output overcurrent protection devices are not included with the unit and must be provided by the end user
or purchaser. Failure to install the output overcurrent protection devices voids the UL1012 listing for the unit.
Lug Size Tables
Input Circuit Breaker Lug Sizes — 480 V — Copper Wire Only
Cable Range Torque
100 Kva #10-250 mcm 14 Nm or 124 in/lb
125 Kva #10-250 mcm 14 Nm or 124 in/lb
150 Kva #10-250 mcm 14 Nm or 124 in/lb
200 Kva (2) 2/0-250 mcm 31 Nm or 274 in/lb
Output Distribution Block Sizes — 480 V — Copper Wire Only
Cable Range Torque
100 Kva #6-350 mcm 31 Nm or 275 in/lb
125 Kva #6-350 mcm 31 Nm or 275 in/lb
150 Kva #6-350 mcm 31 Nm or 275 in/lb
200 Kva #4-500 mcm 56 Nm or 500 in/lb
Page: 9
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
To Install the Solatron™ Unit:
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
• The following instructions must be followed. Contact SolaHD Technical Support with any questions or
concerns.
1. Ensure that all electrical circuits are properly de-energized and locked out.
2. Locate and access the input and output terminal blocks or lugs.
3. Ensure that cable entry points comply with the appropriate NEMA rating of the enclosure (NEMA 1). Cable
entry points should not be made through removable or panels.
4. Ensure that the enclosure and internal components are not damaged when installing source and load
cabling.
5. Route and restrain the source and load cabling within the enclosure such that it is not in contact with any
components, surface, or sharp corners.
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
• Note that all source and load wiring must be installed in accordance with all applicable federal, state, and
local codes.
6. If required, install appropriately rated remote alarm cabling. Refer to the Alarms section for details and
contact ratings.
7. After installation of the source and load wiring, inspect all wiring and internal components for any sign
of damage. Ensure that all connections are tight and wires are secure. Report any signs of damage to
components, connectors, or wiring insulation to SolaHD Technical Support prior to energizing the unit.
8. Ensure that the internal auxiliary circuit breakers (CB2, CB3 and CB4) are ON (CLOSED).
9. Replace all removable panels which were opened during installation.
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
• Ensure that all retaining bolts are reinstalled.
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Page: 10
Startup
When powering the Solatron™ unit for the rst time, please follow these instructions to ensure normal
operation. Note that the unit has been fully tested and calibrated and requires no user adjustments during
startup or during normal operation. If there are any questions or concerns, please contact SolaHD Technical
Support immediately. If any of the checks during startup are not satisfactory, do not continue to the next
step, and refer to the Troubleshooting section or contact SolaHD Technical Support.
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
• Ensure that all installation requirements have been met.
• All eld installed wiring must be complete and secure and the unit enclosure must be fully closed and
secured.
1. Ensure that the input breaker is OFF (OPEN).
2. Turn ON the upstream source to apply voltage to the Solatron™.
3. Turn the input circuit breaker handle to the ON (CLOSED) position. This energizes the control circuits and
the transformers. After several seconds, the status display indicates “Regulating” and no errors should be
present..
The Solatron™ is now in normal operation mode and is supplying regulated voltage to the load.
Normal Operation
The Solatron™ is considered to be in normal operation mode when the load is supplied with regulated
voltage. The unit is in normal operation mode when the following conditions are met:
• The input circuit breaker is ON (CLOSED).
• The status display indicates “Regulating”
If one or more of the normal conditions are not met, the load may not be supplied with power, or the power
supplied to the load may be unregulated.
While in normal operation, the Solatron™ automatically regulates the output voltage to within the output
voltage regulation range. The unit selects discrete transformer taps to regulate the output voltage.
Each phase of the Solatron™ is regulated independently to achieve optimum phase balance within the
regulation range.
When the unit changes taps, it is not unusual to see a change in output voltage equal to approximately the
total output regulation range. The output regulation range is +/-3%, so the output voltage may change up to
6% during a tap change. The resulting output voltage remains within the output regulation range.
Page: 11
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Automatic Internal Bypass
The unit has an automatic internal bypass mode included with the objective of protecting the switching
semiconductors in the event of failure modes which include but are not limited to:
• Semiconductor malfunction
• Severe over-currents
• Control board malfunction
• Power supply malfunction
The unit is in automatic internal bypass mode if either or both of the internal auxiliary circuit breakers (CB2 or
CB3) are tripped. In most cases, the power to the load is maintained, but the output voltage is not regulated.
The unit is in automatic internal bypass mode if all of the following conditions are met:
• The input circuit breaker is ON (CLOSED)
• The status display indicates “Auto-Bypass”.
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
• Note that while the automatic internal bypass mode protects the Solatron™ unit and maintains power to
the load, it does not cover all possible contingencies or failure modes.
• The output terminals of the unit remain energized when in automatic internal bypass mode.
To return the Solatron™ unit from automatic internal bypass mode to normal operation mode:
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
• The unit must be de-energized with the input breaker OFF (OPEN) before proceeding
Step 1 – Verify that there are no exposed voltages in the electronics compartment.
Step 2 – Determine which auxiliary circuit breaker(s) have tripped.
Step 3 – Reset each tripped breaker.
Step 4 – Once all auxiliary circuit breakers are ON (CLOSED), replace all access panels and close all access
doors, and follow the instructions for returning the unit to normal operation (See Startup Section).
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Page: 12
Circuit Breaker Operation
The input circuit breaker is mechanically operated by a handle on the front panel. To reset the input circuit
breaker, it must be turned OFF (OPEN) before it may be turned ON (CLOSED).
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
• Do not operate the input breaker by any operating mechanisms other than those on the front panel of the
Solatron™
Surge Suppression
The Solatron™ contains a transient voltage surge suppression device (SPD) unit which is wired to the input
circuit breaker load terminals.
Alarms
Remote Alarm Relay Dry Contacts
The Solatron™ unit provides dry relay contacts for remotely monitoring the operating condition. Note that
the dry relay contacts must be eld-wired, and no wire or cable is provided to make such connections.
The remote alarm contacts are one set of dry normally closed Form B contacts from a pilot relay available at
DIN terminal blocks labeled “Remote Alarm”. During normal operation, the relay is energized. The relay is
de-energized for conditions where the unit may require attention which includes:
• Automatic Internal Bypass mode (“Bypass” light is illuminated).
• High temperate (“Overtemp” light is illuminated).
• Input circuit breaker is OFF (OPEN).
• Loss of utility power.
• The unit is NOT in normal operation
Contact Rating
Maximun Switching Voltage 220 Vdc, 250 Vac
Rated Current 2 Amp
Switching Power 60 W, 62.5 VA
Minumun Switching Voltage 100 uV
UL Contact Ratings
30 Vdc, 2 Amp, 60 W (N.O. Only)
110 Vdc, 0.3 Amp, 33 W
220 Vdc, 0.27 Amp, 60 W
125 Vac, 0.5 Amp, 62.5 W
250 Vac, 0.25 Amp, 62.5 W
Page: 13
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Status Display
The Solatron™ is equipped with a Status Display to indicate the operating condition of the unit. This
also serves as the user interface for navigating logs and viewing and changing system settings with three
navigation keys located on the bezel. The navigation key functions are indicated on the screen, directly above
each key. The following key functions are used to navigate the screens:
Menu – Displays selectable menu items.
Back - Returns to the previous screen.
Scroll – Moves the curser arrow position one row down to the next menu selection.
Enter – Performs the selected menu action which is highlighted by the cursor arrow.
Save – Writes any changes made in settings into non-volatile memory, which is retained even after power loss.
View – Displays the selected event information.
Newer/Older – Navigates event information in chronological order (newer events happened more recently).
The screen navigation is outlined in the chart below:
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Page: 14
Splash Screen
When the unit is energized, the Status Display
backlight is illuminated and a short Splash Screen is
displayed while the unit initializes.
Home Screen
When the unit is in normal operation mode, the status display indicates the amount of voltage correction.
The amount of voltage correction applied to each output phase is represented as a boost number. There are
six boost numbers as follows:
• Boost -1: Input voltage is above nominal; the unit
is reducing the input voltage one tap
• Boost 0: Input is approximately nominal; the unit is
on the nominal tap
• Boost 1: Input is below nominal; the unit is
boosting the input voltage one tap
• Boost 2: Input is below nominal; the unit is
boosting the input voltage two taps
• Boost 3: Input is below nominal; the unit is
boosting the input voltage three taps
• Boost 4: Input is below nominal; the unit is
boosting the input voltage four taps.
The home screen also shows the current date in the bottom left corner. The date alternates between showing
the month and day in the format “MM-DD” and the year in the format “YYYY”. The current time is shown in
the bottom right corner of the home screen in the 24 hour format of “HH:MM”.
The third row of the home screen shows the current status of the unit, including whether the unit is
regulating, the current adjustable target setting, and whether there are errors present. The home screen
scrolls through any conditions that are currently present. The home screen updates approximately once per
second.
Selecting the “Menu” button from the home screen navigates to the main menu.
Page: 15
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Main Menu
From the main menu, the following options are
available:
1) View Logs (go to the event logs navigation menu)
2) Set Date/Time (update the current real-time clock
value)
3) Adjust Target (change the adjustable output
target value)
Event Logs Menu
There are two ways to navigate through the event log:
1) View the last event (go to the most recent event
chronologically)
2) Searching through the logs by event number (the
most recent event is event #1)
The “Back” button returns to the main menu.
The third line updates approximately every four
seconds, alternating between displaying the total
number of events and the total number of tap
changes.
Search Events
The search events screen provides the functionality to
jump to a specied event number in the logs.
The “Enter” button increments or decrements the
event number depending on the position of the cursor.
Holding down the enter button causes the event
number to increment or decrement faster. The “View”
button jumps to the event log page corresponding to
the indicated event number.
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Page: 16
Event Logs
The event log displays historic information for system events such as tap changes, power events, and error
events.
The “Back” button returns to the event logs menu. The “Newer” button decrements the event number to
display more recent events. The “Older” button increments the event number to display older events. Holding
down either of these buttons causes the event number to increment or decrement faster.
All events within the log have an event start time stamp in the format “YYYY-MM-DD HH:MM:SS” and an
event number. The only exception would be a Power Off event, which does not have a timestamp. The
events are indexed by an event number with event #1 corresponding to the most recent event to have been
logged. The event number is displayed on row one, preceding the event type in the format “event #) event
type”.
Tap Change – A tap change event indicates that the
unit has adjusted the output voltage to maintain
output regulation. The time stamp indicates
when the change was initiated. The old boost
levels prior to the tap change for phases A, B, and
C, respectively, are shown on the left side and the
new boost levels after the tap change for phases A,
B, and C, respectively, are shown to the right
Power Events – The Solatron™ records when the unit
is powered on as well as when the unit is powered
off.
Power On – A log event is created any time that the
control board is energized
Power Loss – A log event is created any time the
control board is de-energized. These cases may
be logged as a Power Loss event, Frequency Error
event, or Low Input Voltage event
Error Events – If any error conditions have occurred
that may affect the functionality of the unit, an
error event is created in the logs. For details on
error conditions, refer to the troubleshooting
section.
Page: 17
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Set Date/Time Menu
The set date/time menu allows the real-time clock
value to be updated in order to maintain an accurate
history of events. The on-board real-time clock utilizes
battery power to maintain programmed date/time
settings if utility power is lost.
Selecting the “Set Date” option allows adjustment of
the year, month, and day. Selecting the “Set Time”
option allows adjustment of the hour and minute.
Set Date/Time
Once selected from the set date/time menu, the year,
month, day, hour, and minute may be adjusted. The
current value is shown at the top of the screen.
Select “Increment” or “Decrement” to update the
displayed value. The “Save” button stores the value
currently displayed at the top of the screen and returns
to the previous menu. Note that daylight savings time
must be updated manually.
Adjustable Output Target
The adjustable output target allows the output range of the Solatron™ to be adjusted in increments of 0.5%
over a range of 90% to 110%. The default setting is 100%. This feature allows the unit to compensate for line
loss and other factors between the output of the Solatron™ and the load.
For example, if the output regulation range of a unit is +/-3% and the adjustable output target is set to 100%,
the regulated output voltage is between 97% and 103% of the nominal output voltage. For the same unit, if
the adjustable output target is set to 105%, the regulated output voltage is between approximately 102% and
108% of the nominal output voltage. The input regulation range of the unit is also be affected by the same
amount that the adjustable output target is incremented or decremented.
The target value can be changed by selecting the
“Adjust Target” option from the main menu. Select
“Increment” or “Decrement” to update the displayed
value. The “Save” button stores the value currently
displayed at the top of the screen and return to the
previous menu..
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Page: 18
Serviceable Parts
See troubleshooting section for details regarding when parts should be serviced.
Part Name Description Part Number
J20 or J2 (on control board) Clock battery, 3V CR2032
Page: 19
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Maintenance
The following items should be addressed at least annually as part of a responsible maintenance routine. If
there are any questions regarding the functionality of the unit during any maintenance procedures, please
contact SolaHD Technical Support.
The included log should be used to log and record maintenance activities.
General Condition
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
• The Solatron™ unit must be completely de-energized, including power on the line side of the input circuit
breaker and any remote alarm contact power.
• Failure to observe maintenance may degrade unit performance or cause load power interruption
The entirety of the enclosure should be thoroughly examined for any signs of damage, moisture, or liquids.
All wires and cables should be inspected for signs of damaged insulation or overheating. SolaHD Technical
Support should be contacted if any of these signs are present. The enclosure should be free from dust and
debris. The unit should be cleaned in accordance with good cleaning practices for industrial electronic
equipment.
Solatron™: Three-Phase Voltage Regulator — 100–200 kVA
Page: 20
Maintenance Log
Installation Date: _________________ Model Number: __________________ Serial Number: ___________________
Inspection/ Maintenance Date Personnel Inspections Performed/Actions Taken
Troubleshooting
!
WARNING
Failure to follow any instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty.
• Refer to the Important Safety Information section prior to troubleshooting.
• The Solatron™ unit must be completely de-energized and locked out prior to troubleshooting
In the event of alarm conditions or unexpected operation, please refer to the Troubleshooting Table on the
next page as a guide to return Solatron™ unit to normal operation. Note that while many conditions are
described, no claim is made that all possible contingencies are covered. If the Troubleshooting Table is unclear,
the condition is not listed, or the troubleshooting action does not remedy the condition, please contact
SolaHD Technical Support: 1-800-377-4384 Option #2 or email: solahd.technicalservices@emerson.com.
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