Enel X JuicePump User manual

175 kW DC
RT
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Maintenance Manual
TRI125-175-S (USA)

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TRI125.INS.033.3 - 29 April 2021
Important safety instructions.....................................................................................................1
Block diagram.............................................................................................................................2
Maintenance intervals.................................................................................................................3
User unit maintenance................................................................................................................4
User unit maintenance checks.....................................................................................................5
Isolated power unit maintenance...............................................................................................7
Isolated power unit maintenance checks...................................................................................8
Electrical safety checks..............................................................................................................9
Contents

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TRI125.INS.033.3 - 29 April 2021
Important safety instructions
This manual contains information about
maintenance for the JuicePump DC charger
model:
TRI125-175-01, 175 kW DC
The purpose of this document is to guide the
manufacturer-certied service agent through
a series of preventative maintenance checks
for the JuicePump DC charger system.
The scope of this document covers the
maintenance interval schedule to be carried
across all the subsystems of the JuicePump
DC charger system. The subsystems include:
• User unit: The user unit provides an in-
terface for the user (the electric vehicle
driver/owner) and uses the CHAdeMO or
Combo 2 (CCS2) connector to connect one
electric vehicle to the power supply.
• Isolated power unit: The IPU outputs
regulated 750 – 950 VDC to the user unit.
It also provides galvanic isolation of the
charging system from the AC grid
interface through the isolation
transformer, as well as charge control and
communication to back-oce services.
CRITICAL
Service and maintenance must be performed
by a manufacturer-certied service agent
only. In the absence of a certied service
agent, the actions recommended in this man-
ual should not be completed.
All maintenance work should be conducted
ONLY when the site is completely
de-energized.
For assistance with maintenance of the
charger, contact your supplier, or ENEL X
Customer Support.
Identifying symbols
CAUTION
RISK OF ELECTRIC SHOCK
CRITICAL
CAUTION
In the event of a circuit breaker trip, the
charger must be inspected by a
manufacturer-certied service agent
before the charger is re-energized.
Operating temperature:
-30° to 50°C / -22° to 122°F
Weather rating:
User unit
IP65 Electronics Enclosure
NEMA Type A4
IPU
IP55
NEMA Type 3R
SAVE THESE INSTRUCTIONS

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Block diagram
Simplied
Detailed (excluding LV board)

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Maintenance intervals
Key
C = Check, R = Replace
User unit
Part Test Action 1 yr 2 yr
Liquid cooling
system
Inspect coolant level If too low, top up C
Charge plug/
cable
Inspect cable
and plug
Inspect cable and
plug
C
Coolant pump (front) Check for
operation
Periodic
replacement
C R
Radiator fans (x2) Inspect and
clean
Clean/replace as
required (1)
C R
Isolated power unit
Part Test Action 1 yr 2 yr 10 yr
Front door lters Check lter Clean/replace as
required (1)
C R
Primary transformer Inspect electrical
connections for
signs of heat or
corrosion
Ensure connec-
tions are tight and
rm
C
Rear door fans +
lter (x2)
• Check lter
• Check for airow
Clean/replace as
required (1)
C R
UPS battery Check battery
controller for alerts/
alarms
Check and
replace batteries
as required
C R
• Filter cleaning/replacement is environment dependent. Perform more frequently in higher
pollution environments.
• Used batteries must not be thrown away with regular waste, they should be disposed of in
accordance with applicable national regulations. They can also be returned to the manufac-
turer.
All units
Part Test Action 1 yr
Tilt sensor/door
switches
Verify correct oper-
ation
If it does not
operate correctly,
troubleshoot
C
Electrical safety
checks
See section
Electrical Safety
Checks
C

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General exterior maintenance
Regular cleaning is recommended to
avoid accumulation of debris/dust/dirt on
or around the unit. Wipe surfaces with a
soft cloth dampened with water, or use an
alcohol-based cleaner for marks harder to
remove.
Do not spray with high-pressure cleaning
hoses or use abrasive chemicals.
Snowfall areas
Regularly remove snow build up if
present in front of the radiator panels.
This should be checked daily in areas
with high snowfall.
The following maintenance can be
performed by the owner/user. All other
servicing must be conducted by qualied
service personnel.
If there is any damage to the charger,
contact your supplier.
It is recommended to perform general
maintenance at least every 6 months, de-
pending on the environment. In harsher
environments, you should perform gener-
al maintenance more often.
User unit maintenance
The following image shows the features and components of the JuicePump user unit.

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General external checks
1. Surfaces
Check for cuts, damage, and debris.
If debris is present, remove it.
If you nd damage, contact your supplier.
2. Metalwork
Check for damage and corrosion.
If present, contact your supplier.
3. Interface panel
• Check the Human Machine Interface
(HMI) for damage/signs of faded col-
or/pixels that are clearly visible.
• Press each button and check if they
work.
4. Plug holders
Ensure that there is no debris or damage
inside or around the plug holders and
plug holder hinges.
If present, remove debris/notify the
supplier.
5. Cable Management system
Pull on the cables to check the retraction
system of the cables.
If blocked, contact your supplier.
Coolant level and radiator fans
check
1. Coolant level inspection
• Check if the coolant is at the correct
level.
Note: The coolant should be above
the level indicated by the arrows in
the following image.
• If the coolant level is below the half-
way arrow mark of the hose, inform
the supplier.
2. Radiator fans
• Periodically check for debris/damage.
• Clean fans to ensure free airow.
CAUTION
Clean with water and soft-bristled brush-
es and/or low-pressure hoses to avoid
bending or damaging the fans. Allow to
air dry before operating.
User unit maintenance checks

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User unit maintenance checks
Charge cable checks
1. Inspect both cables and plugs.
2. Check for cuts, holes, cracks, sharp
edges, and exposed copper.
3. If you observe any cuts, holes, cracks
etc., contact your supplier.
4. Check the contact pins for signs of
corrosion.
5. If corrosion is present, contact your
supplier.

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Isolated power unit maintenance
The following image shows the features and components of the JuicePump RT 175-S.
The following maintenance can be
performed by the owner/user. All other
servicing must be conducted by a quali-
ed service personnel.
If there is any damage to the unit,
contact your supplier.
It is recommended to perform gener-
al maintenance at least once a year,
depending on the environment.
In harsher environments, you should
perform general maintenance more often.
General exterior maintenance
Regular cleaning is recommended to
avoid accumulation of debris/dust/dirt on
or around the unit. Wipe surfaces with a
soft cloth dampened with water, or use an
alcohol-based cleaner for marks harder to
remove.
Do not spray with high-pressure cleaning
hoses or use abrasive chemicals.
Snowfall areas
Regularly remove snow build up if
present around the inlet fans.
This should be checked daily in areas with
high snowfall.
1. IPU Main Disconnect Switch
2. UPS Batteries
3. Escutcheon Panel
4. IPU Rear Fans & Filters
5. Door Switch (top)
6. Door Switch (bottom)
7. Isolation Transformer
8. Control Shelf
9. Rectier Racks
10. Data Module
11. IPU Front Filters

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Door fans and lters
1. Inspect the four lters located on the
Isolated power unit (IPU) front door
for accumulated dust.
2. Clean or replace as required.
UPS battery
1. Check the Uninterruptable Power
Supply (UPS) controller for errors or
warning lights.
2. The Lithium-ion UPS batteries should
last 7-10 years; however it may be
necessary to replace the batteries
periodically as part of continuous
maintenance.
Doors
1. Check hinges for ease of movement
and spray with a suitable water-free
lubricant.
2. Check the lock for ease of movement
and spray with a suitable water-free
lubricant.
Seals
1. Check the seals for damage around
the contact areas.
2. If there is any damage, replace the
seal.
Metalwork/enclosure
1. Check for signs of corrosion or
damage such as scratches.
2. For minor corrosion or damage, use
a polish or a light sand and paint to
repair.
3. For major damage, contact your
supplier.
Isolated power unit maintenance checks

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It is recommended to compete the following checklist annually.
1. Check the protective earth connections around enclosure for:
• Breakage or loss
• Signs of corrosion
2. Measure the resistance of the main protective earth connection.
3. Inspect connections to buried earth electrode for signs of:
• Corrosion
• Breakage
• Loss
4. Inspect all buried site cables interconnecting the equipment for signs of insulation
degradation.
5. Check any insulating supporters and insulators for condition and tment.
6. Check all connections and visible components for signs of overheating (especially
IPU contactors and main power connections).
7. Check cable support/strain relief structures.
8. Re-torque any screw terminals (especially contact).
9. Inspect the retention of rectier module screw terminals (these cannot be re-
torqued).
10. Check the resistance of 50 ohm discharge resistor and 25 ohm discharge resistor
(can be done with a digital multimeter with the power o).
11. Re-torque and check Insulation Monitoring Device (IMD) connections and termi-
nals.
12. Check AC contactors in the IPU are in the released/open position when de-ener-
gized (this can be visually checked with the power o).
13. Visual inspection of Surge Protection Device (SPD) devices and associated fuses in
the IPU.
14. Evaluate the amount of deposited pollution visible in the enclosure. Consider
cleaning as necessary.
15. Manually engage all 10 power unit contacts and listen for chatter or intermittent
operation.
16. Check isolation transformer primary/secondary connections for corrosion or heat-
ing.
Electrical safety checks