Grizzl-E DUO GCD-14-24-P Installation and operating instructions

User Manual & Installation Guide
™
EV charger
GRIZZL E
DUO

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Model Numbers:
GCD-14-24-P
GCD-6-24-P
Grizzl-E Duo Manual v.3.1

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Grizzl-E Duo Home EV Charging Station
The Grizzl-E Duo is the dual Electric Vehicle Charging Station solution built from the proven
Grizzl-E design. Grizzl-E Duo has intelligent power sharing capability to provide up to 10kW of
power to two vehicles simultaneously.
The Grizzl-E Duo comes exclusively with two 24ft Premium output cables. Internal design and
components of the charger have been selected to provide maximum operational life of the
device and be able to withstand the elements.
IMPORTANT SAFETY INSTRUCTIONS
This document contains instructions and warnings that must be followed when installing and
using the Grizzl-E Duo Electric Vehicle Supply Equipment (EVSE). Before installing or using the
EVSE, read this document including any WARNING and CAUTION symbols.
Warning: risk of personal injury
Warning: risk of electric shock
Warning: risk of fire
Caution: risk of damage to equipment
• This document provides instructions for the charging station and should not be used for
any other product. Before installation or use of this product, review this manual carefully
and consult with a licensed contractor, licensed electrician, or trained installation expert to
ensure compliance with local building codes and safety standards.
• Consult a licensed electrician to ensure that you can safely install and use this product.
• Ensure that the materials used, and the installation procedures, follow local building codes
and safety standards.
• The information provided in this manual in no way exempts the user of responsibility to
follow all applicable codes or safety standards.
The Symbols Used Have the Following Meanings

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Repair and Maintenance Clause
• All United Chargers products do not require routine maintenance however, periodic
inspections should be conducted to ensure that all parts remain in good working order
and no damage exists.
• Do not attempt to disassemble, repair, tamper with, or modify any components of the
products. Contact United Chargers for any repairs.
• Read all the instructions before using this product.
• Children should not use this device.
• Do not put fingers into the EV connector.
• Do not touch live electrical parts.
• Do not use this product if the flexible power cord or EV cable is ragged, has broken
insulation, or any other signs of damage.
• Do not use this product if the enclosure or the EV connector is broken, cracked, open,
or shows any other indication of damage.
• Improper connection of the equipment grounding conductor can result in a risk of electric
shock. Check with a licensed electrician if you are in doubt as to whether the product is
properly connected and grounded.
Basic precautions should always be followed when using electrical products,
including the following:
WARNING: This equipment is intended only for charging vehicles
that do not require ventilation during charging. Please refer to your
vehicle’s owner’s manual to determine ventilation requirements.

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Product Features
GRIZZL-E™ Duo Electric Vehicle Charging Station (EVSE)
• J1772 AC Level 2 (208-240 VAC),
• Two charging connectors. Can charge two vehicles at the same time.
• Adjustable Maximum Current Output (40A, 32A, 24A, 16A) to Support Multiple Circuit
Ratings (50A, 40A, 30A, 20A)
• Extreme Duty, Rigid & Compact Design:
• Robust and heavy-duty aluminum cast case; airtight enclosure for indoor or outdoor use
• EasyEvPlug™ Holster or Tesla EasyEVPlug™ Holster with cable Management System.
• Plug-in Configuration for easy portability.
• Wall Mount with security features (including single stud mount), Pedestal, Bollard/Pole
(Single & Dual Port) available from United Chargers.
Adjustable Maximum Current Output to Support Multiple Circuit Ratings
The GRIZZL-E™ Electric Vehicle Charging Station features the ability to adjust the maximum
charging station current output to allow the use of a 50A, 40A, 30A, or 20A Dedicated Circuit
as follows:
50A Circuit Rating To support 40A (9.60kW) Maximum Charging Station Output
40A Circuit Rating: To support 32A (7.68kW) Maximum Charging Station Output
30A Circuit Rating: To support 24A (5.76kW) Maximum Charging Station Output
20A Circuit Rating: To support 16A (3.84kW) Maximum Charging Station Output
The Default Factory Setting is 40A (9.6kW). To change the maximum current output, refer to
Chapter 3.1 Adjust Maximum Current Output on page 10. If you are unsure of the circuit
ratings in your home consult a licensed electrician.
Grizzl-E Duo Intelligent Power Sharing
Grizzl-E Duo features intelligent power sharing to charge two electric vehicles at the same
time.
Grizzl-E Duo can provide up to 40A (9.6kW) to one vehicle. If two vehicles are connected and
taking maximum power Grizzl-E Duo will supply 50% of the available current to each vehicle.
For more information on Power Sharing between two vehicles see «7.2 Grizzl-E Duo
Intelligent Power Sharing» on page 20.

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Product Specifications
United Chargers GRIZZL-E™ DUO Electric Vehicle Charging Station (EVSE)
Description Specifications
EVSE Level
Max Output
Rating
Charge Cable
Length
Electrical Circuit
/ Input Power
Requirements
Input Power
Connection
Charging Station
Color
Installation Rating
Operational Ratings
SAE J1772; AC Level 2
40A Power Sharing; 9.6 kW Maximum Output – For use with 50A
Circuit Rating
24 ft. (x2)
Circuit Requirement: Dedicated Single Phase 208-240VAC, 50/60 Hz.;
Branch Breaker: Double pole;
Circuit Conductors: Line 1, Line 2, Earth / Ground
Plug-in NEMA 14-50 or Plug-in NEMA 6-50
Standard: Black
NEMA 4, Indoor/Outdoor Rated
Temperature: -22⁰F to 122⁰F (-30⁰C to 50⁰C); Humidity: 95% RH
non-condensing
Mounting Wall or Pedestal Installation
Overall Dimensions
Display & Indicators
EVSE: 10.25L x 6.25W x 6.75H inches (26.0 x 16.0 x 17.1 cm)
LED Charge Status Indicators (Power/Ready, Charging, Fault)
Cable Management EasyEvPlug™with cable management
Alternate
Adjustable Output
Ratings
32A; 7.68 kW Maximum Output – For use with 40A Circuit Rating
24A; 5.76 kW Maximum Output – For use with 30A Circuit Rating
16A; 3.84 kW Maximum Output – For use with 20A Circuit Rating

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INSTRUCTIONS Manual
United Chargers GRIZZL-E™ Duo Electric Vehicle Charging Station (EVSE)
Table of Contents
1. Introduction & Unpacking ............................................................................... 8
2. Installation Planning and Service Wiring: ...................................................... 9
2.1 Electrical Source Requirements ................................................................. 9
2.2 Grounding Instructions ............................................................................... 9
3 Adjustable Maximum Current......................................................................... 10
3.1 Adjust Maximum Current Output............................................................. 10
4. Installation ....................................................................................................... 13
4.1 Tools & Parts Required for Installation ................................................... 13
4.2 Install the Charging Station ...................................................................... 14
5. EasyEvPlug Holster and Cable Management System................................... 17
6. Charging Status Indicators and Buzzers ....................................................... 18
6.1 Indicator Lights ........................................................................................... 18
6.2 Grizzl-E Duo Alternating Indicator Light .................................................. 18
6.3 LED Fault Indicator ..................................................................................... 19
6.4 Reset Charger.............................................................................................. 19
7. Operation.......................................................................................................... 20
7.1 Connect and Charge .................................................................................. 20
7.2 Grizzl-E Duo Intelligent Power Sharing .................................................... 20
7.3 Stop Charging ............................................................................................. 20
8. General Product Care and Use Information ................................................ 21
9. Warranty .......................................................................................................... 22

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This user manual applies to the GRIZZL-E Duo EVSE for Plug-in Hybrid Electric Vehicles
(PHEVs) and Electric Vehicles (EVs).
Charging Station with input and
2 output cables
Mounting Bracket (x1)
Security Pin (x1)
Phillips-head
Screws (x8)
Holster (x2)
Robertson Head
Screws (x2)
1. Introduction & Unpacking
Socket Cap Screw (x2)
Anchor (x8)
Made in Canada
DUO

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WARNING: Disconnect the power supply to the charging station
before installing, adjusting, or repairing the charging. Failure to do so
may result in physical injury or damage to the power supply system
and the charging station.
2. Installation Planning and Service Wiring:
• Prior to mounting, locate an available electrical source that can support the following
Input Requirements for the Charging Station Per local Electrical Safety Code requirements:
»40A Maximum Output Setting (Default Factory Setting): a DEDICATED CIRCUIT rated
for 50A; 208-240 VAC, 50-60 Hz, Single Phase must be used.
»32A Maximum Output Setting (Optional Setting): a DEDICATED CIRCUIT rated for 40A;
208-240 VAC, 50-60 Hz, Single Phase must be used.
»24A Maximum Output Setting (Optional Setting): a DEDICATED CIRCUIT rated for 30A;
208-240 VAC, 50-60 Hz, Single Phase must be used.
»16A Maximum Output Setting (Optional Setting): a DEDICATED CIRCUIT rated for 20A;
208-240 VAC, 50-60 Hz, Single Phase must be used.
• A Double Pole Circuit Breaker of the circuit rating must be used.
• The Charging Unit has a built in GFCI protection; Additional downstream GFCI is not
required. In locations where GFCI at the outlet is mandated by code, the charger will not
experience negative effects.
• The Charging Stations can connect a Standard NEMA 6-50 or 14-50 Receptacle. The unit is
not able to be hardwired.
2.2 Grounding Instructions
The charging station must be implemented equipment grounding through a permanent
wiring system or an equipment grounding conductor. Use a cable with a dedicated grounding
conductor connected to the equipment ground terminal block.
CAUTION: To reduce the risk of fire, connect only to a circuit
provided with the minimum branch circuit overcurrent protection
requirements in accordance with the National Electrical Code ANSI/
NFPA 7- and the Canadian Electrical Safety Code, Part 1, C22.1. If
you are unsure if your circuit meets these requirements consult a
licensed electrician.
2.1 Electrical Source Requirements

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3 Adjustable Maximum Current
Circuit Rating Maximum Charging Station Output
50A 40A (9.6 kW)
40A 32A (7.68 kW)
30A 24A (5.76 kW)
20A 16A (3.84 kW)
The GRIZZL-E ™ charging station features the ability to adjust the maximum Charging Station
current output to support 50A, 40A, 30A, or 20A Dedicated Circuit ratings as follows:
3.1 Adjust Maximum Current Output
• The Charging Station Default Factory Maximum Current Output Setting is 40A (9.6 kW) for
use with a 50A Circuit Rating.
• The Circuit must be a DEDICATED CIRCUIT 208-240 VAC, 50-60 Hz, Single Phase.
• Requirements govern that only 80% of the circuit rated load may be utilized, hence the
higher Circuit Ratings Requirement relative to maximum Charging Station output.
To adjust the Maximum Current Output Setting:
1. Ensure unit is unplugged. Place the Charging Station on a flat surface with the front cover
facing up.
2. Remove the front cover by removing the 4 screws at each corner of the charging station.

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CAUTION: The LED pipe is attached to the front cover. When the
front cover is removed, place it on a flat surface facing down to avoid
damage to the LED pipe.
3. With the front cover placed to the side, locate the DIP switch on the charging station circuit
board. The DIP switch is a 4-position switch on the main circuit board, located directly to
the left of the LED.
WARNING: Do not touch live electrical parts. Disconnect the power
supply to the charging station before adjusting the DIP Switches.
Failure to do so may result in physical injury or damage to the power
supply system and the charging station.
UP DOWNUP UP

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40A Maximum Current Output
32A Maximum Current Output
24A Maximum Current Output
16A Maximum Current Output
UP DOWN UP UP
UP DOWN DOWN
DOWN DOWN
DOWN DOWN DOWN
UP
UP UP
UP
Switch 1 Switch 2 Switch 3 Switch 4
4. Adjust the Maximum Current Output to either 40A, 32A, 24A or 16A, using the following
combination of DIP switch settings:
5. Once the DIP Switch Setting is adjusted, reassemble the charging station. Reinstall the top
cover to the charging station using the following torque force to secure the (4) socket cap
screw:
Screw Torque
M6 16 kgf-cm 13.88 lb-in

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4.1 Tools & Parts Required for Installation
Tool Size Source of Supply Remark
Mounting Bracket
Robertson-Head Screw
(x2)
Phillips-Head Screw
(x8)
Anchors
(x8)
Holster/Tesla Holster
Socket cap screw
(x2)
Allen key
Philips Screwdriver
255 x148 x 36 mm
#14
#8
#8
5/16”
PH3
M4
Included with Product
Included with Product
Included with Product
Included with Product
Included with Product
Included with Product
Commercially Available
Commercially Available
For mounting the charging
station to the wall/structure
For installing the Mounting
Bracket to the wall/structure
For installing the
EasyEvPlug™to the wall/
structure
For installing the EasyEvPlug™
to the wall/structure
To store the EV charging Plug
and Cable
For securing the charging
station to the Mounting
Bracket
For Charging Station Cover
Screws
For Holder Installation and
Optional Hardwire Install
Allen key 3/16” Commercially Available For installing the enclosure
plate to the back of the
station body.
4. Installation
Prior to mounting, determine the location of an acceptable mounting support. All charging
station products must be anchored into a mounting support such as a 2” x 4” stud or a solid
concrete wall. DO NOT mount this unit directly to a stucco/drywall/wall board.

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4.2 Install the Charging Station
1. Separate the front and back piece of the mounting bracket by pushing down on the
notch.
2. Attach the front piece of the mounting bracket to the back of the charging station
using the Socket-cap screws. Ensure the top of the mounting bracket is matched with
the top of the charging station.
Back Piece
Front Piece
TOP

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The back piece of the mounting bracket has 3 holes to support attachment to various
surfaces. Use the top two holes to attach the mounting bracket to a wall stud.
Mounting Screw Recommendations:
• For finished walls supported by wood studs, use #14 or M6 tapping screws. (Included).
• For masonry walls, use M6 mechanical screws. (Commercially available)
• Use following torque force:
Screw Torque
M6
1/4”
50 kgf-cm
50 kgf-cm
43.4 lb-in
43.4 lb-in
3. Secure the back piece of the mounting bracket to the wall or other suitable structure
using the Robertson-head screws.
Mount the unit between 24 inches (0.6 m) and 48 inches (1.2 m) from the ground. The NEMA
outlet should be located no less than 20~26” from the ground or as defined by applicable,
local electrical safety codes and standards.

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4. Mount the charger on the wall by securing the front piece of the mounting bracket to the
back piece of the mounting bracket.
5. Secure the charger in place by inserting either the security pin or the outdoor security lock
into the mounting bracket.
6. Plug in Charger to NEMA 14-50 or NEMA 6-50 outlet.

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5. EasyEvPlug Holster and Cable Management System
The EasyEVPlug™ Holster or Tesla EasyEVPlug™ Holster is the new innovative method to pro-
tect your plug and manage your cord. It has the following features:
• No need to aim – awless plug even in the dark.
• Your EV holster will always be in a convenient location.
• Saves space – special angle for less wall clearance.
• Integrated cable management – holds up to 25 feet of cable.
The EasyEvPlug holster can be installed at any location near the charging station.
(x4)
1. Hold back of holster against the mounting
surface. Fasten Phillips head screws through
back holes. Use anchors if attaching directly to
drywall.
2. Insert charging connector into holster.
3. Wrap cable on top of EasyEvPlug.

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6. Charging Status Indicators and Buzzers
6.2 Grizzl-E Duo Alternating Indicator Light
Grizzl-E Duo Features an Alternating LED Indicator Light to give the status of both
chargers. The primary and secondary charger will display their status in the following
sequence:
Primary Charger
Secondary Charger
Transition
Solid Colour or slow flashing indicates
the status of the primary charger.
LED Indicator Buzzer Description Definition
No buzzer
No buzzer
No buzzer
No buzzer
No buzzer
No buzzer
Buzzer beeps
Not illuminated
Red Steady
Blue Steady
Blue Flashing
Green Flashing
Green Steady
Red Flashing
Power Off
Initialization
Ready
Vehicle detected
Charging in progress
Charging complete or no
current consumed by the car
Fault (See Chapter 6.3 LED
Fault Indicator on page 19)
White LED indicates transition of the
status Indicator between Primary and
Secondary Charger
Modulating or rapid flashing indicates
the status of the second charger.
6.1 Indicator Lights
No buzzer White Transition (See «6.2 Grizzl-E
Duo Alternating Indicator
Light» on page 18)
Color: Blue/
Green/Red
Color: White
Color: Blue/
Green/Red

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6.3 LED Fault Indicator
In the instance of a fault remains, it is recommended that you:
1. Unplug the charging Connector from your EV
2. Turn off the power to the Charging Station by switching the upstream circuit breaker to
the “OFF” position
3. With the circuit breaker in the “OFF” position, wait 1-2 minutes and then switch the
upstream circuit breaker back to the “ON” position
4. Confirm the Fault light is no longer present. If the Fault light remains, please contact
United Chargers.
# of Flashes Error Description Primary Secondary
1 Lost ground - AC Solid Red Modulated Red
2 GFCI High Solid Red Modulated Red
3 Relay is stuck Solid Red Modulated Red
4 GFCI Low Solid Red Modulated Red
5 High temperature of
the module
Solid Red Modulated Red
6 High temperature of
the relay-
Solid Red Modulated Red
7 Pilot state is Status E Solid Red Modulated Red
8 x Pilot state is Status
F
Solid Red Modulated Red
9 Diode error Solid Red Modulated Red
11 No connection with
secondary module
Solid Red N/A
12 Application error Solid Red Modulated Red
6.4 Reset Charger
The number of Red Flashes indicates the charger error:

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7. Operation
7.1 Connect and Charge
7.3 Stop Charging
Insert one of the charging connectors into the EV and ensure the connector is fully seated/
locked in place. Once complete, the charging session will begin.
1. Unplug the charging station by pressing the connector button and removing the Charger
Connector from the EV (once the connector button is depressed, the charging session
terminates immediately).
2. Return the connector to the holster.
7.2 Grizzl-E Duo Intelligent Power Sharing
Grizzl-E Duo features intelligent power sharing to charge two electric vehicles at the same time.
Grizzl-E Duo’s power sharing algorithm shares amperage between two vehicles in the following
manner:
1. If one vehicle is connected to Duo, then the maximum amperage (40A,32A, 24A,16A based
on DIP Switch settings) is available for this vehicle.
2. If two vehicles are connected, then the maximum available amperage is divided evenly
between the two vehicles (Example: 40A / 2 = 20A for each vehicle).
3. If two vehicles are connected and one vehicle goes to state ‘Charging Complete’, then 8A
is dedicated to the completed vehicle. The remainder of the amperage is available for the
other vehicle (Example: 40A – 8A = 32A). If the completed vehicle goes to a Charging state
again, then only 8A will be available for this vehicle.