Comm Net Systems H2 Zero Quick start guide

H2 Zero™
VRLA BATTERY ROOM HYDROGEN VENTILATION SYSTEM
RETURN AIR DAMPER ASSEMBLY KIT
SETUP & OPERATIONAL MANUAL
INSTALLATION & OPERATIONAL MANUAL

Comm/net Systems, Inc.
4237 – 24th Avenue West
Seattle, WA 98199
TEL: [phone]
FAX: [phone]
www.commnetsystems.com
24/7 Sales & Service
To purchase Comm/net Systems solutions, contact your
Comm/net Systems representative at: [phone]
or e-mail: [email protected]
About Comm/net Systems
Comm/net Systems, Inc. (CSI) is the leader in high power density communications power systems. Comm/net oers
comprehensive power and communications site systems integration and deployment services via a national footprint of
regional branch oces. Additional information can be found at www.commnetsystems.com.
© 2012 Comm/net Systems, Inc. All rights reserved. Comm/net Systems, and the Comm/net Systems logo are registered
trademarks of Comm/net Systems, Inc. in the United States and other countries. All other trademarks, service marks,
registered marks, or registered service marks are the property of their respective owners. Comm/net Systems assumes no
responsibility for any inaccuracies in this document. Comm/net Systems reserves the right to change, modify, transfer, or
otherwise revise this publication without notice.
Document Number: 048-695-30
Revision Level: r01
Published: December 2012

H2 Zero™
VRLA BATTERY ROOM HYDROGEN VENTILATION SYSTEM
RETURN AIR DAMPER ASSEMBLY KIT
SETUP & OPERATIONAL MANUAL

Table of Contents
Appendix C: Return Air Damper Assembly Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
C.1 Box Content. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
C.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
C.3 Return Damper Assembly and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
C.4 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
C.5 Damper Controller Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
C.6 Power and Control Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
C.7 Power-On and Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
C.8 Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
C.9 Detail Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Appendix C: Return Air Damper Assembly Kit
C.1 Box Content
The H2 Zero Return Air Damper box contains:
Return Air Damper Assembly Kit (P/N 016-556-10).
Unistrut Mounting Kit (P/N 016-555-10).
8” Diameter Galvanized Steel Collar (643-506-10).
C.2 Installation
Before installing the H2 Zero Return Air Damper, you need to plan where you will place the unit.
If possible, to simplify ductwork, it is recommended that this be an outside wall such that a straight 8”
diameter duct can be installed.
The wall must have sucient strength to support 30 lbs.
Clearance around the unit should be 18”on all sides except the mounting surface.
C.3 Return Air Damper Assembly and Installation
The Return Air Damper Assembly Kit was shipped in a separate box to protect it during shipping.
C.4 Mounting
IMPORTANT: The wall and anchor system must be capable of supporting 30 lbs.!
Step 1. Attach the two pieces of unistrut to wall such that the unistrut runs vertically, and the centers are
27” apart.
Step 2. Using the six U-nuts, 3/8-16 screws, fender washers, and split lock washers provided, mount
the Return Air Damper Assembly to the unistrut.
See “Figure 1. Wall mount illustration with unistrut” on Page 2
PAGE 1 H2 ZERO: VRLA BATTERY ROOM HYDROGEN VENTILATION SYSTEM
INSTALLATION & OPERATIONAL MANUAL

Figure 1. Wall mount illustration with unistrut
C.5 Damper Controller Connection
Step 1. Loosen the four captive thumbscrews and remove the front panel of the Return Air Damper unit.
Step 2. See wiring diagram to what scheme is ideal.
RETURN DAMPER ASSEMBLY UNIT
MOUNTING HARDWARE
UNITSTRUT
SPRING NUT
PAGE 2 H2 ZERO: VRLA BATTERY ROOM HYDROGEN VENTILATION SYSTEM
8p POWER/CONTROL INPUT (J3)
C.6 Power and Control Connection
PIN 1 PIN 2 PIN 3 PIN 4 PIN 5 PIN 6 PIN 7 PIN 8
RUN IN OPEN FAULT IN GRND TXD RXD PWR + PWR -
Jumper J3 is used to connect between H2 Zero Main Controller using the 8p position connector.
See “Figure 2. Scheme 2 Wiring Diagram” on page 4
INSTALLATION & OPERATIONAL MANUAL

C.7 Wiring Diagram
See “Figure 2-4. Wiring Diagram” on page 4-6
A AUXILIARY POWER INPUTS (J4)
PIN 2 PIN 1
B AUXILIARY POWER INPUTS (J5)
PIN 2 PIN 1
POS (+) NEG (-) POS (+) NEG (-)
PAGE 3 H2 ZERO: VRLA BATTERY ROOM HYDROGEN VENTILATION SYSTEM
FORM C PINOUT (J6)
PIN 2 PIN 1
OPEN OPEN
COM NC/NO
Jumper J4 and J5 (auxiliary power inputs) is necessary when connecting between H2 Zero Main Controller using the minor alarm
dry contact.
Jumper J6 is used to select whether the re suppression signal is normally open or normally closed.
See “Figure 4. Scheme 4 Wiring Diagram” on page 6
C.8 Power-On and Test
Before powering on the system, ensure that:
The damper unit is securely mounted on the wall.
There is no obstruction of the damper door.
The POWER ON switch on the controller I/O board is in the OFF position.
Turn OFF all the breaker feeding system.
Power on the system as follows:
Step 1. Turn OFF all the breaker feeding system and the controller I/O board before installing the Return Air
Damper Unit.
Step 2. After installing the Return Air Damper Unit turn the POWER switch on the controller I/O board to ON
position.
Step 3. The BLUE Power LED on the Return Air Damper unit should turn ON, within one minute.
When the Return Air Damper unit is powered up for the rst time, it will perform an automatic test an will cycle the Return Air
Damper once.
During the cycle all four LED will illuminate for a few seconds and the green LED will ash. The amber LED will illuminate if the
damper door is in the OPEN stage. The red FAULT LED will illuminate if any malfunction or obstruction. Once the automatic test
is complete the damper will be in a closed position with the green READY LED on steady.
C.9 Detail Drawing
See “Figure 5 Detail Drawing”on page 7
INSTALLATION & OPERATIONAL MANUAL

H2 Zero Damper Wiring Diagram
Scheme 1: Connection Between H2 Zero Main
Controller, Damper Unit (using 8 position Fan
Unit connector) and Fan Unit
Figure 2. Scheme 1 Wiring Diagram
PAGE 4 H2 ZERO: VRLA BATTERY ROOM HYDROGEN VENTILATION SYSTEM
I/O BOARD
FAN UNIT
GROUND
POWER LANDING BOARD
CAT-5 Patch (Straight) Cable
#18-24 AWG Alarm Wire 60-Position Ribbon Cable
CONTROLLER
DAMPER CONTROL
BOARD
DAMPER UNIT
GROUND
INSTALLATION & OPERATIONAL MANUAL

H2 Zero Damper Wiring Diagram
Scheme 2: Connection Between H2 Zero
Main Controller, Damper Unit and Fan Unit
Figure 3. Scheme 2 Wiring Diagram
PAGE 5 H2 ZERO: VRLA BATTERY ROOM HYDROGEN VENTILATION SYSTEM
I/O BOARD
FAN UNIT
GROUND
POWER LANDING BOARD
CAT-5 Patch (Straight) Cable
#18-24 AWG Alarm Wire 60-Position Ribbon Cable
CONTROLLER
DAMPER CONTROL
BOARD
DAMPER UNIT
GROUND
INSTALLATION & OPERATIONAL MANUAL

H2 Zero Damper Wiring Diagram
Scheme 3: Connection Between H2
Zero Main Controller, Damper Unit
(using Minor Alarm dry contact), and
Fan Unit
Figure 4. Scheme 3 Wiring Diagram
PAGE 6 H2 ZERO: VRLA BATTERY ROOM HYDROGEN VENTILATION SYSTEM
I/O BOARD
FAN UNIT
GROUND
POWER LANDING BOARD
#18 AWG (minimum) DC Cable CAT-5 Patch (Straight) Cable #18-24 AWG Alarm Wire 60-Position Ribbon Cable
CONTROLLER
DAMPER CONTROL
BOARD
DAMPER UNIT
-42 to -60 VDC 1/2A Max
+
-
+
-
GROUND
#18 AWG (minimum) DC Cable
NOTE: AUX POWER INPUTS REQUIRED.
INSTALLATION & OPERATIONAL MANUAL

Figure 5. Detail Drawing
PAGE 7 H2 ZERO: VRLA BATTERY ROOM HYDROGEN VENTILATION SYSTEM
INSTALLATION & OPERATIONAL MANUAL

About Comm/net Systems
Comm/net Systems, Inc. (CSI) is the leader in high power
density communications power systems. Comm/net
oers comprehensive power and communications site
systems integration and deployment services via a
national footprint of regional branch oces. Additional
informatioin can be found at www.commnetsystems.com
Corporate Headquarters
Comm/net Systems, Inc.
4237-24th Avenue West
Seattle, WA 98199
TEL: [phone]
FAX: [phone]
www.commnetsystems.com
24/7 Sales & Services
To purchase Comm/net Systems solutions, contact your
Comm/net Systems representative at: [phone] or
e-mail: [email protected]
Order Information
Shipping box packaging for UPS or FedEx shipment and
includes an instruction manual and accessories.
© 2012 Comm/net Systems, Inc. All right reserved. Comm/net Systems, and the logo are registered trademark of Comm/net Systems, Inc. In the United States and other countries. All
other trademarks, service marks, registered marks, or registered service marks are property of their respective owners. Comm/net Systems assumes no responsibility for any inaccuracies in
this document. Comm/net Systems reserves the right to change, modify, transfer, or otherwise revise this publication without notice.
DOCUMENT NUMBER: 048-695-30, REVISION LEVEL: r01, PUBLISHED: DECEMBER 2012