enphase HCS-40 User manual

• • • • • • •
HCS EVSE
User Manual

HCS EVSE User Manual
2
To view latest version of the product warranty, please visit
https://enphase.com/warranty/us
To view the latest version of this manual, please visit
https://enphase.com/installers/resources/documentation/ev-chargers
© 2023 Enphase Energy. All rights reserved. Enphase, the e and CC logos, IQ, and
certain other marks listed at https://enphase.com/trademark-usage-guidelines are trade-
marks of Enphase Energy, Inc. in the US and other countries. Data subject to change.
Rev02/04-18-2023.
PLEASE NOTE
This user manual includes the latest information at the time of
printing. Enphase Energy, Inc. reserves the right to make changes

this product by other than an authorized service facility may void the
product warranty.
Contact a Customer Service Representative with any questions about
the use of this product. 877-797-4743
WARNING: This product can expose you
to chemicals, including Carbon Black, which
is known to the State of California to cause
cancer. For more information go to:
www.P65Warnings.ca.gov

HCS EVSE User Manual
3
CONTENTS
IMPORTANT SAFETY INSTRUCTIONS...............................................5
Instructions Pertaining to a Risk of Fire or Electric Shock 6
Additional Safety Instructions 8
FCC INFORMATION.................................................................................9
OPERATION..............................................................................................10
Front Panel 11
CHARGE CABLE WRAP GUIDELINES ..............................................12
INSTALLATION - SERVICE CONNECTIONS....................................13
WIRING INSTRUCTIONS (Hardwired)................................................18
RECEPTACLE INSTRUCTIONS (Plug-In EVSE)...............................19
RECEPTACLE INSTRUCTIONS ( 240V PlugType EVSE) 20
GROUNDING INSTRUCTIONS.............................................................21
Hardwired EVSE Grounding 21
Plug-In EVSE Grounding 21
MOUNTING PROCEDURES ..................................................................22
EVSE Mounting for Hollow-Wall Construction 23
EVSE Mounting for Solid-Wall Construction 24
MOUNTING THE  CONNECTOR HOLSTER ...................25
USING THE PADLOCK (if applicable) ..................................................27
MOVING & STORAGE INSTRUCTIONS............................................28
OPTIONAL FEATURES FOR HCS........................................................29
MAINTENANCE ......................................................................................30
CUSTOMER SUPPORT...........................................................................31
SPECIFICATIONS....................................................................................32

HCS EVSE User Manual
4
ILLUSTRATIONS
Figures
1. Front Panel ....................................................................................................11
2. Drape the Charge Cable Loosely Around the HCS Enclosure......................12
3. 220/240V Single Phase .................................................................................15
4. 208V 3-Phase, Wye-Connected.....................................................................16
5. 240V 3-Phase, Delta-Connected, with Center-Tap on One Leg....................16
6. Wiring the EVSE in a Junction Box..............................................................18
7. Preferred Orientation of the NEMA Receptacles Below the Plug-in HCS ...19
8. Mounting the EVSE to a Hollow-Wall..........................................................23
9. Mounting the EVSE to a Solid-Wall .............................................................24
10. Mounting the SAE J1772 Connector Holster Using the Exterior
Wood Screws and Washers............................................................................26
11. Locking the SAE J1772 Connector with Padlock Included..........................27
12. Charge Connector Secured with Padlock which Cannot be Removed
from Vehicle without Key .............................................................................27
13. Padlock Used in Combination with Connector Holster After Charging .......27
14. Enclosure Dimensions...................................................................................33
Tables
1. Front Panel LED Information........................................................................11
2. Service Connections for HCS by Model.......................................................13

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HCS EVSE User Manual
IMPORTANT SAFETY INSTRUCTIONS
Carefully read these instructions and the charging instructions in
your vehicle owner’s handbook before charging your electric vehicle.
The following symbols may be found in this manual or on labels

NOTE:
This means pay particular attention. Notes contain
helpful suggestions.
CAUTION: This symbol means be careful. There is
potential to do something that may result in damage to the
equipment.
WARNING: This symbol means danger. You are in a
situation that could cause bodily injury. Before you work
on any electrical equipment, be aware of the hazards
involved with electrical circuitry and standard practices for
preventing accidents.

HCS EVSE User Manual
6
Instructions Pertaining to a Risk of Fire or Electric Shock
When using the HCS, basic electrical safety precautions should be
followed:
• Use this EVSE to charge electric vehicles equipped with an
SAE J1772 charge port only. Consult the vehicle’s owner
manual to determine if the vehicle is equipped with the
correct charge port.
• Make certain the EVSE SAE J1772 charge cable is
positioned so it will not be stepped on, tripped over, or
otherwise subjected to damage or stress.
• This product contains no user serviceable parts. Consult
the Customer Support section in this manual for service
information. Do not attempt to repair or service the EVSE
yourself.
• Do not operate your EVSE if it or the SAE J1772 charge
cable is physically open, cracked, frayed, or otherwise
visibly damaged. Contact a Service Representative for
service immediately. Consult the Customer Support
section in this manual for information on the Service
Representative in your area.
• Not for use in commercial garages where a

portion thereof) used for the repair of internal combustion


 
SAE J1772 charge cable.
• Do not allow children to operate this device. Adult
supervision is mandatory when children are in proximity to
an EVSE that is in use.

7
HCS EVSE User Manual

•
occasional
relocation, such as moving from one home to another home
.
•
 
prior to plugging in AND/OR unplugging 240V appliances
(including this EVSE).
• The high-quality industrial grade dedicated NEMA outlet
receptacle listed to UL 498 (US) and C22.2 No. 182.3-16
(Canada) standards must be used with your plug type EVSE
if supplied with the product.
 
• Do not use this EVSE with an extension cord or wall plug
adapter. Plug this EVSE directly into the receptacle. We
recommend that plug-in EVSEs remain plugged into the
receptacle.
• Have an electrician verify all wiring to the outlet is correct
and in compliance with local code requirements before
connecting the EVSE.
• A worn or defective receptacle can cause the plug to overheat

during charge session to see if it is hot to touch. If so, we
recommend an electrician check the connection tightness and
replace the receptacle .
• Ensure that the EVSE is mounted to the wall or placed on a
support so it does not hang from the receptacle . Receptacle s
are not designed to support the weight of the EVSE.
• The EVSE shall be installed so that the power supply cord


HCS EVSE User Manual
8
Additional Safety Instructions
WARNING:  
breaker panel before moving, servicing or cleaning the unit.
WARNING:
at the circuit breaker panel prior to plugging into or
unplugging from a wall socket.
NOTE: VENTILATION - Some electric vehicles require
an external ventilation system to prevent the accumulation
of hazardous or explosive gases when charging indoors.
Consult the vehicle owner’s manual to determine if your
vehicle requires ventilation during indoor charging.
NOTE: Vehicles which conform to the SAE J1772
standard for communication can inform the charge station
that they require an exhaust fan. The EVSE is not equipped
to control ventilation fans. Do not charge the vehicle with
the EVSE if ventilation is required.
CAUTION: DO NOT CHARGE a vehicle indoors if it
requires ventilation. Contact a Service Representative for
information.
Save these instructions for future reference.

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HCS EVSE User Manual
FCC INFORMATION
This device complies with Part 15 of the FCC rules. Operation
is subject to the following two conditions: (1) This device may
not cause harmful interference, and (2) This device must accept
any interference received, including interference that may cause
undesired operation.

approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
This product has been designed to protect against Radio Frequency
Interference (RFI). However, there are some instances where high
powered radio signals or nearby RF-producing equipment (such as

operation.
If interference to the EVSE is suspected, the following steps
should be taken before consulting a Enphase Sales or Service
Representative for assistance:
1. Reorient or relocate nearby electrical appliances or
equipment during charging.
   
during charging.
CAUTION 
by other than an authorized service facility may void
FCC compliance.

HCS EVSE User Manual
10
OPERATION
The HCS is a compact wall or pedestal-mounted EVSE that
provides the Plug-in Hybrid or Battery Electric Vehicle (together
Plug-In Electric Vehicles, or “PEV”) user with a safe and
manageable link between the power grid and the PEV. Both
hardwired and plug-in HCS versions are available.
To use the HCS simply unwrap the charge cable and plug the SAE

Normally, the vehicle will immediately request a charge using a
special communication line in the cable. Within a few seconds the
Green “Charging” light on the face of the HCS will turn on and the
charging cycle will begin. After an average driving day the vehicle
battery pack will require several hours to recharge completely.
Charging overnight is the most convenient way to maintain healthy
batteries and ensure the vehicle’s full range will be available for
the next day.
When the vehicle has stopped charging the Green “Charging” light

charge cycle has completed (or to interrupt a charge in progress)
press and hold down the latch release lever on the connector handle
then unplug the connector from the vehicle charge port.

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HCS EVSE User Manual
Front panel LED indications
The front panel on the HCS/ has four
indicator lights, as shown in Figure 1.
POWER (Amber), indicates that
power is available to the EVSE.
CHARGING (Green), indicates that the
vehicle is requesting a charge and AC
power is currently applied to the vehicle.
POWER FAULT (Red), indicates that
the EVSE is not wired correctly. The
problem can be due to improper ground-
ing or a missing Earth Ground. The
wiring should be examined by a

CHARGING FAULT (Red), indicates
that the EVSE is unable to communicate
with the vehicle correctly, or a safety
fault condition has been detected by the
unit.
Figure 1: Front Panel
Table 1: Front Panel LED Information
No power to EVSE. Check
circuit breaker.
Not plugged into the EV or the
EV is not ready to charge.
Charging enabled, power is
applied to the vehicle.
Improper grounding or ground is
not present.
Problem with EV communications.
Disconnect and restart.
EV ground fault trip. Check
vehicle connection.
Internal EVSE fault.
Call for service.
    
    
    
    
   
    
     
ON - not
blinking
ON - not
blinking
Amber
Power
LED
Green
Charging
LED
Red
Charging
Fault LED Fault Condition
#Red
Power
Fault LED

HCS EVSE User Manual
12
CHARGE CABLE WRAP GUIDELINES
The HCS enclosure body is sculpted to allow the charge cable to
be wrapped around it for convenient storage as well as to keep

charge cable is comprised of a number of wires, coiling the charge
cable too tightly around the enclosure will result in the charge
cable feeling warmer to the touch than would ordinarily be the
case.

loosely draped around the enclosure body with larger loops. This

loops if a longer charge cable reach is desired.
Figure 2: Drape the Charge Cable Loosely Around the
Enclosure

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HCS EVSE User Manual
HCS-40 Hardwired 40A
HCS-40P NEMA 6-50R 40A/50A
HCS-40P NEMA 14-50R 40A/50A
HCS-50 Hardwired 50A
HCS-50P NEMA 6-50R 50A
HCS-50P NEMA 14-50R 50A
HCS-60 Hardwired 60A
HCS-80 Hardwired 80A
HCS Model Connection/Receptacle Type Circuit Breaker Rating
Table 2: Service Connections for HCS by Model
INSTALLATION - SERVICE CONNECTIONS
CAUTION: 
circuit provided with the appropriate maximum branch
circuit overcurrent protection in accordance with the
National Electrical Code, ANSI/NFPA 70 (US) or the
Canadian Electric Code C22.1 (Canada).

HCS EVSE User Manual
14
CAUTION: This is a single-phase device. Do not connect
all three phases of a 3-phase feed! You may use any two
phases of a three phase wye-transformer feed. The
centerpoint of the three phases (usually used as Neutral)
must be grounded somewhere in the system. A Neutral
connection is not required by the EVSE. Only Line 1, Line
2, and Ground are required, as shown in Figure 3.
CAUTION: The two phases used must each measure 120V
to Neutral. Earth Ground must be connected to Neutral at
only one point, usually at the service entry breaker panel.
CAUTION: If a 240V 3-phase feed is from a Delta-
connected secondary, the leg used must have a center-tap.
That tap must be Grounded. Only the two phases on either
side of the center-tapped leg can be used. See Figure 4.
CAUTION: Warranty is void if this unit is not wired
properly.
WARNING:
the installation. The installation must be performed in
accordance with all local electrical codes and ordinances.
Only 3 wires are connected, but care must be taken that the service
transformer secondary connection is  known, and the
3 wires from the main circuit breaker panel are connected and
labeled correctly. Figures 2, 3, and 4show the most common
service transformer secondary wiring formats.
Notice that L1, L2, & Ground are labeled on each diagram. Those
transformer outputs correspond to the same inputs on the HCS.
Also, each of the two 3-phase diagrams shows an L3 output, which
is not used. Do not connect all three phases of a 3-phase secondary
to the EVSE. This is a single-phase device.

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HCS EVSE User Manual
The Neutral at the service panel must be connected to Earth
Ground somewhere in the system on any of the three connection
arrangements. Ground-fault protection is not possible unless the
Neutral (center-tap on the service transformer) is connected to an
Earth Ground. If no Ground is provided by the electrical service, a
grounding stake must be driven into the Ground nearby, following
local electrical codes. The grounding stake must be connected to
the ground bar in the main breaker panel, and Neutral connected to
Ground at that point.
WARNING: Local electrical codes must always be
followed when installing the grounding stake.
The following diagrams illustrate the three service transformer
secondary connections most common in North America.
L1
L2
NEUTRAL
120V
120V
GROUND
(NOT USED)
240V
Figure 3: 220/240V Single Phase

HCS EVSE User Manual
16
Figure 4: 208V 3-Phase, Wye-Connected
L3 (NOT USED)
L2
L1
GROUND
NEUTRAL
(NOT USED)
120V208V
120V
NOTE: With a wye-connected secondary, any two of the
legs can be used to provide 208V to the HCS. For example,
L1 & L2, or L1 & L3, or L2 & L3. Leave the unused leg
open. Do not connect it to a Neutral bar, or to Ground. Be
sure the center point is grounded to Earth somewhere in the
system.
Figure 5: 240V 3-Phase, Delta-Connected, with Center-Tap on
One Leg
120V
120V
240V
NEUTRAL
(NOT USED)
L1
L2
GROUND
L3 (DO NOT USE!)

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HCS EVSE User Manual
CAUTION: With the delta connection, one leg must be
center-tapped. Only the two phases on either side of the
center tap can be used. The two phases must both measure
120V to Neutral. The third line (L3) of the delta is 208V,
with respect to Neutral, and is sometimes referred to
as a “stinger.” Do not use this third line! Consult the
transformer manufacturer’s literature to be sure the single
leg can supply the required power.
CAUTION: A 3-phase delta-connected transformer
secondary without a center-tap on one leg cannot be
used with the EVSE. No “Neutral” point is available
to be connected to ground for ground-fault protection.
The EVSE will not allow the contactor to close if it does
not sense the presence of a Ground wire connected to a
“Neutral” point on the transformer secondary.

HCS EVSE User Manual
18
WIRING INSTRUCTIONS (Hardwired)
Route the HCS conduit to a nearby junction box. Use the included


and the junction box. If necessary, drill a  diameter hole to

the junction box is fully sealed using appropriate electrical grade
silicone sealant.
Before connecting the service
conductors, please carefully read the
section of this manual titled Installation -
Service Connections. If unsure of the type
of power provided at the service panel,
please consult with the local utility or
call a Service Representative for
assistance.
The three supplied HCS-40 service
conductors use stranded 10 AWG 90ºC
copper wire.
The three supplied HCS-50, HCS-60, and
HCS-80 service conductors use stranded 8
AWG, 90ºC copper wire.
The insulation of each conductor is color
coded for standard 240V AC installation:
Green: Ground
Black: Line 1 (120V AC to Ground)
Red: Line 2 (120V AC to Ground)
Figure 6: Wiring the
EVSE in a Junction
Box

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HCS EVSE User Manual
RECEPTACLE INSTRUCTIONS (Plug-In
EVSE)

extending from the bottom of the enclosure. Regulations limit this
plug to a maximum of 6 feet (1.8 m) in length, including the plug
head. For this reason, the plug-in EVSE must be mounted above
the NEMA receptacle and must also be located within 6 feet (1.8
m) of it.

located at the furthest point on the plug. It is recommended that a
NEMA 14-50R or 6-50R receptacle be oriented accordingly, such
that the ground socket is at the lowest point.
Figure 7: Preferred Orientation of the NEMA Receptacles
Below the Plug-in EVSE
Plug type EVSEs must
be installed with the
provided 14-50R or
6-50R receptacle if
supplied with your
product. Installation
must be performed by
an Enphase installer or a


HCS EVSE User Manual
20
Receptacle Safety Instructions for 240V Plug-Type EVSE
An EV Supply Equipment (EVSE) draws substantially more power
than any average home load. As a result, it is crucial to select an ap-
propriate receptacle that can support these products. Plug type EVSEs
must be installed with the provided 14-50R or 6-50R receptacle if
supplied with your product. Improper selection of receptacles at the
installation site puts the EVSE at risk of overheating and may result in


the EVSE is to check the metal contacts visible on the front face. It is
strongly recommended to select a high-quality industrial grade outlet
that has two full contacts in both receptacle slots.
As can be seen in Figures 1 & 4 above, a good receptacle has a contact
surface area that occupies the entire slot and makes full contact with the
blade of the plug. In contrast Figures 2 & 5 show how bad receptacles
have contacts that occupy only half the slot. Figures 3 & 6 are provided
to demonstrate the contact that would be made as the NEMA plugs are
inserted into the respective receptacles.

premise wire connections on the back of a pre-existing NEMA out-
let before using it. Wire connection points behind the receptacle may
become loose or oxidized if they were installed many years ago and
may cause the outlet to fail. Ensure that the receptacles are free of any
physical damage or defects prior to the installation of the EVSE.