Zonit Z-PDS Series User manual

Version 2.3 - October 2019
Zonit Power Distribution System
Z-PDS™
User Guide

Version 2.3 - October 2019
Table of Contents

1
Overview 2
Cautions and Warnings 3
Specifications 4
Common Z-PDS Models 5
Installation 6
Pre-Installation Considerations 6
Shipped Items List 6
Mounting 7
Z-PDS Mounting 7
Electrical Connection & Power-Up 8
Option 1: Connect via supplied plugs 8
Option 2: Connect via hard-wire module 9
Electrical Connection of Output Loads 10
Operation 10
Output Circuit Configurations 11
Line to Neutral Voltage 11
Line to Line Voltage 11
Three Phase Wye 11
Three Phase Delta 11
Controls 12
Maintenance 13
Troubleshooting 13
Warranty 14
Waste Electrical & Electronic Equipment (WEEE) 16

2
Overview
The Zonit Power Distribution System (Z-PDS™) is an extremely
versatile and reliable power delivery solution for data centers and
tele-communication closets with many innovative patented and
patent pending features. It delivers 208V or 480V three phase A-B
redundant power directly at the rack and outputs a wide variety of
power configurations. Depending on the power density needed in
each rack a single Z-PDS can feed multiple plug strips or power IT
equipment such as blade servers. A typical deployment uses a Z-PDS
to provide A+B redundant power to multiple racks.
The Z-PDS has patented phase load balancing technology which
statistically distributes power loads evenly across all phases to
eliminate manual balancing of the per phase power loads on UPS
units and generators. It also has individual circuit breaker
protection for each hot phase of each output to minimize the
impact of any fault. While plug strips are typically attached to the
outputs of the Z-PDS it is possible to connect either plug strips or IT
equipment directly. All output connections are made via standard
plugs and receptacles so no electricians are needed to make
changes. A wide variety of standard and custom plug adapters for
the Z-PDS system are available from Zonit.
The Z-PDS system is the logical evolution of power distribution in
the data center. By moving three phase power to the rack and
tapping it via inexpensive plug adapters, the same result as running
a new whip from a three phase power panel or putting a new tap
box in an overhead busway can be achieved, easier, quicker and
cheaper.

3
Cautions and Warnings
Please read the instructions thoroughly as damage can occur to
people or equipment if the product is not handled correctly during
installation, operation, servicing, maintenance, and
decommissioning. The symbols below are used to highlight danger
indications, warnings or notices.
DANGER
DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
CAUTION
CAUTION indicates a potentially hazardous situation which,
if not avoided, can result in minor or moderate injury.
NOTICE
NOTICE indicates no immediate physical injury but can
include hazards, damages or loss of data

4
Specifications
ZPDS-
208V60A-
HW-6L21-20
ZPDS-
208V60A-
HW-4L21-30
ZPDS-
480V60A-
HW-4L22-30
ZPDS-
480V60A-HW-
6L22-20
ZPDS-208V30A-
L21-4L21-20
ZPDS-208V30A-
L21-4L21-20-CR
Electrical
Rated Input
Voltage
[3ø Wye]
208V
208V
480V
480V
208V
208V
Input Rated
Max. Amp
[Amp]
60
60
60
60
30
30
Rated Input
Frequency
[Hz]
50-60
50-60
50-60
50-60
50-60
50-60
Full Load
[kVA]
17.2
17.2
39.9
39.9
8.64
8.64
Standard
Input Cords
4AWG-5/C-SOOW-600V-90C-UL/CSA
10AWG-5/C-SJTW-600V-105C-
UL/CSA
Input Cord
Terminations
Hardwire enclosure
Nema L21-30P
Outputs
(6) L21-20R
(4) L21-30R
(4) L22-30R
(6) L22-30R
(4) L21-20R
(4) L21-20R
(3) 5-20R Duplex
Internal
Overload
Protection
(18) Circuit
Breakers
per phase
(12) Circuit
Breakers
per phase
(12) Circuit
Breakers
per phase
(18) Circuit
Breakers
per phase
(12) Circuit
Breakers per
phase
(12) Circuit
Breakers per
phase
Physical
Dimensions
(HxWxD)
3.57” x 17.619” x 13.5” Note: width across brackets 19.17”
Weight
67 Lbs
TBD
Shipping
Dimensions
22” x 24” x 20”
Shipping
Weight
72 Lbs
TBD
Environmental
Elevation
Operating
0 to 10,000 ft.
Elevation
Storage
0 to 50,000 ft.
Operating
Temperature
-13°F to 149°F
Operating
Humidity
0 –95% Non-condensing
Approvals
Safety
as appropriate
Note: All specifications are subject to change without notice.

5
Common Z-PDS Models
Model
No.
Circuit
Breakers
Voltage
Rating
Input
Connection
Output
Receptacle
Output
Amp
Rating
ZPDS-208V30A-
L21-4L21-20
12
208V
L21-30P
L21
20
ZPDS-208V30A-
L21-4L21-20-CR
12
208V
(120V)
L21-30P
L21
(5-20 Duplex)
20
ZPDS-208V60A-
HW-6L21-20
18
208V
Hard Wire
L21
20
ZPDS-208V60A-
HW-4L21-30
12
208V
Hard Wire
L21
30
ZPDS-480V60A-
HW-6L22-20
18
480V
Hard Wire
L22
20
ZPDS-480V60A-
HW-4L22-30
12
480V
Hard Wire
L22
30

6
Installation
Pre-Installation Considerations
Prior to deployment of the Z-PDS, the following site considerations
should be reviewed to ensure the Z-PDS will function properly in its
intended application.
Shipped Items List:
1. (1) Z-PDS w/ standard attached A-B labeled input 10 ft.
power cords
2. (2) Rack Mount Brackets
3. (8) Bracket Mounting Screws
4. (2) Input Connectors As Ordered (either a. or b.)
a. (2) Plugs on the A-B 10 foot input SJTW cords.
b. (2) Hard-Wire Assembly Modules attached to the A-B
10 ft. input SOOW cords.
5. (1) User Manual

7
Mounting
CAUTION
CAUTION indicates a potentially hazardous situation which,
if not avoided, can result in minor or moderate injury.
Z-PDS Mounting
1. Remove all items from the shipping box and confirm all
pieces in the “Shipped Items List” are present and are not
damaged.
2. Inspect all the components to ensure all parts are
fastened/installed correctly (e.g. ensure all screws are
fastened securely).
3. Locate appropriate hardware needed to mount Z-PDS unit.
4. Mount the Z-PDS in its intended location, for example the
rack, via the brackets provided (see fig 1 & fig 2). Use the
appropriate mounting hardware that can safely withstand
the load of the apparatus and torque the fasteners to the
manufacturer’s recommended values.
Note: If needed, the (2)
8-32 screws on each side
may be removed and
re-installed to move the
mounting brackets to
adjust the mounting
depth of the Z-PDS unit.

8
Electrical Connection and Power-up
DANGER
DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
Note: This operation must be performed by a
qualified technician or electrician in accordance with
your local electrical safety code.
Installation Option 1: Connect via supplied input plugs
1. Have appropriate power whips or busway tap boxes with
receptacles that match your Z-PDS model deployed and
tested.
2. Ensure all Z-PDS breakers are all in the “off” or “0” position
during installation.
3. Consider de-energizing the power input sources for both A
and B, if possible. Follow all applicable safety regulations.
4. Connect the input power to the Z-PDS using the supplied
input cord plugs.
5. Safely energize the input power whips or busway tap boxes
for the Z-PDS A & B inputs.
6. Toggle “1 / ON” for all circuit breakers to ensure all the LEDs
are illuminated. If any malfunctions occur at this point
please reference the troubleshooting section of this guide.

9
Installation Option 2: Connect inputs via hard-wire module
1. Insure that the supplied hardwire enclosure modules and the
connections described below are in compliance with your
local electrical safety codes.
2. Remove the cover plates of the hardwire enclosure modules.
3. Install the bushings in the input feed end by punching the
appropriate knockout size and installing the correct bushing
for your input cord diameter.
4. Strip the wires and then route the input cords through the
bushings and install the wires to the terminal block securely.
5. Ensure the hot and neutral wires from the site power inputs
are appropriately matched to the hot (Phase ‘X’ is Black;
Phase ’Y’ is Red; Phase ‘Z’ is Orange) and neutral wires from
the Z-PDS input cords using the provided terminal block.
6. Ensure the ground wire is mounted on the ground lug.
7. Securely fasten the input cord strain relief so that it is
properly attached to the hard-wire connection module.
8. Ensure all wire lug nuts and enclosure screws are securely
tightened and remove any debris from the enclosure.
9. Close the hardwire enclosure assembly with the cover plate.
Ensure all screws are securely tightened and place or mount
the hard wire assembly in a safe location away from any
environmental hazards.

10
Electrical Connection of output loads
1. Insure that the input load plugs and cords used are in
compliance with your local electrical safety codes and
appropriate for the intended application.
2. De-energize the Z-PDS output receptacle to be plugged into
via the front panel circuit breakers that control it. Follow all
applicable safety regulations.
3. Connect the appropriate plug to the chosen Z-PDS output
receptacle. Remember to use the NEMA twist-lock feature if
your Z-PDS model has that type of output receptacles.
4. Safely energize the Z-PDS output receptacle by closing the
circuit breakers that feed that receptacle on the front panel
of the Z-PDS unit.
5. Check that all the LEDs on the front panel for the receptacle
being energized illuminate to indicate proper function.
6. If any malfunction occurs at this point please reference the
troubleshooting section of this guide.
Operation
The Z-PDS will distribute power through multiple branch circuits,
depending on the model ordered. The number of branch circuits and
the amperage rating for each is pre-determined by the model
ordered. The Z-PDS can be configured to deliver several common
power configurations that vary the output voltage. This is done using
the appropriate plug adapters which tap the three-phase power as
required and deliver it in a chosen receptacle type. This is equivalent
to and much less expensive than having an electrician run a new
power whip from a power panel or installing a new tap box in a
busway. The Z-PDS system can be configured to output line-to-line
(usually 208V), line-to-neutral (120V or 230/240V) or three-phase
wye or delta power.

11
Note: Examples are implemented via Zonit plug adapters where needed.
Output Branch Circuit Configurations

12
Controls
Individual Branch Circuit Output Control Circuit Breakers
Note: All Z-PDS models have either 18 or 12 (not shown) circuit breakers.
Output Receptacles
Note: Output receptacles will vary by model
DANGER
DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
Connectivity Status LED
Indicators
Front Panel Leg
Designation
Front Panel Phase
Designation
Individual Power Phase Circuit Breakers
Rear Panel Phase Input
Power Designation
Output Receptacles
A and B Input Power
Rear Panel Leg Input Power Designation

13
Maintenance
There is no required maintenance schedule for the Z-PDS; however,
toggling on/off all the output circuit breakers to ensure all the LEDs
illuminate during general maintenance windows or when the Z-PDS is
not in use will help ensure all output branch circuits are working
correctly.
Troubleshooting
The Z-PDS is designed and tested for the highest reliability possible.
Problems encountered with improper voltages or in-active circuits
will generally be attributed to an abnormal condition of the branch
circuit delivering the source power to the Z-PDS. If any condition
exists that would indicate a problem, follow this process:
1. Check the source power whip or busway tap box circuit
breakers. Check that the 3-pole circuit breakers feeding the
Z-PDS are fully closed. Toggle to ensure position and check
the LED indicators on the Z-PDS to ensure that input power
is being delivered.
2. Use a suitable voltmeter and test for the following. This test
should only be done by a qualified electrician or qualified
technician.
a. Verify inter-phase voltage (X-Y, X-Z, Y-Z)
b. Verify phase to neutral voltages
c. Verify 0.0 Volts from neutral to ground
d. Verify less than 1ohm from neutral to ground
3. If any fault is located with the A-B feed circuits to the Z-PDS,
have a certified electrician correct it.

14
Warranty
The Z-PDS made by Zonit Structured Solutions, LLC in the U.S.A. is
warranted to be free of defects in materials and workmanship for a
period of 3 years from date of purchase. If the product becomes
defective during the warranty period, we will elect to either repair or
replace it free of charge. After contacting Zonit Structured Solutions
for a return authorization, send the product (with the original proof
of purchase and freight prepaid) to Zonit Structured Solutions, LLC,
1790 30th St. #140, Boulder, Colorado, 80301.
This warranty does not include repair or replacement of any
connected equipment. This warranty excludes damage to a Zonit
product if a surge or spike reaches the product through an
unprotected source connected to it. It does not apply to any product
which has been repaired or altered in any manner by anyone other
than Zonit Structured Solutions, LLC or to any product which has
been installed, connected, used, or otherwise adjusted other than in
accordance with written instructions furnished by Zonit Structured
Solutions, LLC. Zonit Structured Solutions, LLC shall also not be
obligated to repair or replace product which is found to be in need
of repair because of damage resulting from accident or misuse.
Zonit Structured Solutions, LLC makes no other express warranty
for the product. No agent, representative, dealer, or employee of
Zonit Structured Solutions has the authority to increase or alter the
obligations or limitations of this warranty.

15
THIS WARRANTY IS IN LIEU OF ALL OTHER EXPRESS OR IMPLIED
WARRANTIES INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE,
WHETHER ARISING BY LAW, CUSTOM, OR CONDUCT, AND THE
RIGHTS AND REMEDIES PROVIDED UNDER THIS WARRANTY ARE
EXCLUSIVE AND IN LIEU OF ANY OTHER RIGHTS OR REMEDIES.
IN NO EVENT SHALL ZONIT STRUCTURED SOLUTIONS LLC BE LIABLE,
WHETHER IN CONTRACT, UNDER ANY WARRANTY, IN TORT
(INCLUDING NEGLIGENCE), IN STRICT LIABILITY OR OTHERWISE, FOR
SPECIAL, INCIDENTAL, CONSEQUENTIAL, INDIRECT OR OTHER
SIMILAR DAMAGES, INCLUDING, BUT NOT LIMITED TO, PERSONAL
INJURY, PROPERTY DAMAGE, DAMAGE TO OR LOSS OF EQUIPMENT,
LOST PROFITS OR REVENUE, COSTS OF RENTING REPLACEMENTS
AND OTHER ADDITIONAL EXPENSES. ZONIT STRUCTURED
SOLUTIONS LLC’S LIABILITY SHALL NOT IN ANY EVENT EXCEED THE
AMOUNT OF THE PURCHASE PRICE OF THE PRODUCT.
Some jurisdictions do not allow limitations on how long an implied
warranty lasts, and some jurisdictions do not allow the exclusion or
limitation of incidental or consequential damages, so the above
limitation and exclusion may not apply to you. This warranty gives
you specific legal rights and you may also have other rights which
vary from jurisdiction to jurisdiction.

16
Waste Electrical and Electronic
Equipment (WEEE)
Within the European Union this symbol indicates
that this product should not be disposed in
household waste. It should be deposited at an
appropriate facility to enable recovery and recycling. For
information on how to recycle this product, please check with the
reseller that sold you this product to determine proper waste
disposal procedures.
For assistance contact

17
suppo[email protected]
See our website at www.zonit.com
for the latest version of manuals.
Zonit Structured Solutions LLC
1790 30th Street, Suite 140
Boulder, Colorado 80301
USA

18
Copyright © 2019 Zonit Structured Solutions LLC
All Rights Reserved