Bacharach MZ-RD Specifications

Bacharach MZ-RD Specifications
MZ-RD
Remote Display
Instruction 3015-5157
Installation / Operation / Maintenance
Rev. 6 – December 2011
UL 61010-1
CAN/CSA 22.2 No.61010.1
Product Leadership • Training • Service • Reliability
MZ-RD – Multi-Zone Remote Display
NOTICE
Product improvements and enhancements are continuous; therefore the specifications and information contained in
this document may change without notice.
Bacharach, Inc. shall not be liable for errors contained herein or for incidental or consequential damages in
connection with the furnishing, performance, or use of this material.
No part of this document may be photocopied, reproduced, or translated to another language without the prior written
consent of Bacharach, Inc.
Copyright © 2000–2011, Bacharach, Inc., All Rights Reserved
®
BACHARACH is a registered trademark of Bacharach, Inc. All other trademarks, trade names,
service marks and logos referenced herein belong to their respective owners.
WARRANTY
Bacharach, Inc. warrants to Buyer that at the time of delivery this Product will be free from defects in material and
manufacture and will conform substantially to Bacharach Inc.'s applicable specifications. Bacharach's liability and
Buyer's remedy under this warranty are limited to the repair or replacement, at Bacharach's option, of this Product or
parts thereof returned to Seller at the factory of manufacture and shown to Bacharach Inc.'s reasonable satisfaction
to have been defective; provided that written notice of the defect shall have been given by Buyer to Bacharach Inc.
within two (2) years after the date of delivery of this Product by Bacharach, Inc.
Bacharach, Inc. warrants to Buyer that it will convey good title to this Product. Bacharach's liability and Buyer's
remedy under this warranty of title are limited to the removal of any title defects or, at the election of Bacharach, to
the replacement of this Product or parts thereof that are defective in title.
The warranty set forth in Paragraph 1 does not apply to parts the Operating Instructions designate as having a limited
shelf-life or as being expended in normal use (e.g., filters).
THE FOREGOING WARRANTIES ARE EXCLUSIVE AND ARE GIVEN AND ACCEPTED IN LIEU OF (I) ANY AND
ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE: AND (II) ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN CONTRACT OR TORT, WHETHER OR NOT ARISING FROM
BACHARACH'S NEGLIGENCE, ACTUAL OR IMPLIED. The remedies of the Buyer shall be limited to those provided
herein to the exclusion of any and all other remedies including, without limitation incidental or consequential
damages. No agreement varying or extending the foregoing warranties, remedies or this limitation will be binding
upon Bacharach, Inc. unless in writing, signed by a duly authorized officer of Bacharach.
Register your warranty by visiting
www.mybacharach.com
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Table of Contents
Chapter 1.
Introduction ............................................................................................................. 1
1.1. How to Use This Manual .................................................................................................................. 1
1.2. 1
Warnings and Caution Labels .................................................................................................................... 1
Hazard Symbols on the Monitor ....................................................... Error! Bookmark not defined.
1.3. Safety Precautions ........................................................................................................................... 1
Altitude Limit .................................................................................... Error! Bookmark not defined.
1.4. 2
Communications Options .......................................................................................................................... 2
Chapter 2. ......................................................................................................................................... 3
Installation ....................................................................................................................................... 3
2.1.
2.2.
2.3.
2.4.
2.5.
2.6.
2.7.
Warnings and Cautions .................................................................................................................... 3
Preliminary Inspection ..................................................................................................................... 3
Location of the Remote Display ....................................................................................................... 3
Mounting Instructions ..................................................................................................................... 4
Interior Components........................................................................................................................ 6
Electrical Wiring ............................................................................................................................... 7
Communications Connections ......................................................................................................... 8
2.7.1 MZ-RD Network .................................................................................................................. 8
2.7.2 Integration with Building Management System ................................................................. 8
2.8. 9
Connecting External Alarms....................................................................................................................... 9
2.8.1 Overview ............................................................................................................................. 9
2.8.2 Connection .......................................................................................................................... 9
Chapter 3.
Overview ................................................................................................................ 10
3.1. General........................................................................................................................................... 10
3.2. System Programming ..................................................................................................................... 11
3.2.1. Setup Parameters ............................................................................................................. 11
3.2.2. Password Protection ......................................................................................................... 11
3.3. Setup Programming ....................................................................................................................... 12
3.3.1. Setting the Clock ............................................................................................................... 12
3.3.2. Navigating to the 1st MZ-RD Setup Screen........................................................................ 12
3.3.3. Num Monitors on Net ....................................................................................................... 13
3.3.4. Monitor Baud .................................................................................................................... 13
3.3.5. Audible Alarm ................................................................................................................... 13
3.3.6. BMS ................................................................................................................................... 14
3.3.7. BMS Baud Rate ................................................................................................................. 14
3.3.8. Password ........................................................................................................................... 14
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3.3.9. Navigating to the 2nd MZ-RD Setup Screen ....................................................................... 14
3.3.10. Setting Relay Parameters .................................................................................................. 14
3.3.11. Node Address .................................................................................................................... 14
3.3.12. Navigating to the 1st and then 2nd Monitor Setup Screen .............................................. 15
3.3.13. Navigating to the 3rd Monitor Setup Screen ..................................................................... 16
3.4. Zone Setup Programming .............................................................................................................. 17
3.4.1. Navigating to the 1st Zone Setup Screen ............................................................................. 17
3.4.2. Navigating to the 2nd Zone Setup Screen ............................................................................ 18
3.4.3. Navigating to the Trend Screen .......................................................................................... 18
Chapter 4.
General Operation .................................................................................................. 20
4.1. Functional Overview ...................................................................................................................... 20
4.2. The Zone Screen............................................................................................................................. 20
4.3. 21
Alarm Conditions ..................................................................................................................................... 21
4.4. Fault Conditions ............................................................................................................................. 21
4.5. The System Screen ......................................................................................................................... 22
4.5.1. Alarm Conditions................................................................................................................. 22
4.5.2. 23
Alarm Log ....................................................................................................................................... 23
4.5.3. Fault Conditions .................................................................................................................. 24
4.6. Alarms ............................................................................................................................................ 25
4.6.1. Functional Overview ........................................................................................................... 25
4.6.2. Responding to Alarms ......................................................................................................... 25
4.6.3. Alarm Detail Screen............................................................................................................. 26
4.6.4. Acknowledging Alarms ........................................................................................................ 26
4.7. The Trend Screen ........................................................................................................................... 27
4.7.1. Overview - Log Interval ....................................................................................................... 27
4.7.2. Navigating to the Trend Screen .......................................................................................... 27
4.8. System Faults ................................................................................................................................. 28
4.8.1. Functional Overview ........................................................................................................... 28
4.8.2. Navigating to the Fault Screen ............................................................................................ 29
4.8.3. Critical Faults ....................................................................................................................... 29
4.8.4. Non Critical Faults ............................................................................................................... 30
4.8.5. Reset to Factory Default Settings........................................................................................ 30
4.8.6. Clearing System Faults ........................................................................................................ 31
4.8.7. Viewing Fault Log ................................................................................................................ 31
4.9. The Calibration Screen ................................................................................................................... 32
4.9.1. Overview ............................................................................................................................. 32
4.9.2. Navigating to the Calibration Screen .................................................................................. 32
4.9.3. Adjusting Calibration Factor................................................................................................ 33
4.10. The Diagnostic Screen .................................................................................................................... 33
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4.10.1. Overview ........................................................................................................................... 33
4.10.2. Navigating to the Diagnostic Screen ................................................................................. 33
4.10.3. Diagnostic Screen Overview.............................................................................................. 34
4.11. 35
Service Mode ........................................................................................................................................... 35
Appendix A. Logic Diagram ............................................................................................................. 38
Appendix B. Specifications ............................................................................................................. 40
Appendix C. Agency Approvals ....................................................................................................... 42
Appendix D. Service Centers ........................................................................................................... 44
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CHAPTER 1.
INTRODUCTION
1.1. How to Use This Manual
Thank you for investing in a Bacharach MZ-RD Remote Display. To assure operator safety and the proper
use of the MZ-RD please read, understand, and follow the contents of this manual, which provides
important information on the installation, operation, and maintenance of the monitor.
If you have a working knowledge of refrigerant monitors, you will find this manual useful as a reference
tool. If you are new to the use of refrigerant monitors, you can educate yourself about the principles of
refrigerant gas detection and the proper operation of this device by reading this manual thoroughly. This
manual provides important information on how to install, operate, and service the Remote Display.
1.2. Warnings and Caution Labels
When used in this manual or as labeled on the MZ-RD, the following hazard symbols and/or associated
words are defined as follows.
WARNING: This symbol and/or the use of the word WARNING indicates a potential
hazard associated with the use of this equipment. It calls attention to a procedure,
practice, condition, or the like, which if not correctly performed or adhered to, could
result in death or serious injury.
WARNING: This symbol and/or the use of the word WARNING indicates a potential
hazard from electrical shock. It calls attention to a procedure, practice, condition, or the
like, which if not correctly performed or adhered to, could result in death or serious
injury.
CAUTION: This symbol and/or the use of the word CAUTION indicates a potential hazard
associated with the use of this equipment. It calls attention to a procedure, practice,
condition, or the like, which if not correctly performed or adhered to, could result in
minor or moderate injury.
IMPORTANT: The use of the word IMPORTANT in this manual calls attention to a
procedure, practice, condition, or the like, which if not correctly performed or adhered to,
could result in incorrect performance of or damage to the equipment and may void the
warranty.
1.3. Safety Precautions
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WARNING: This instrument has not been designed to be intrinsically safe for use in areas
classified as hazardous locations. For your safety, DO NOT use it in hazardous (classified)
locations.
WARNING: Under no circumstances should the MZ-RD be operated without connection
to a protective ground. Doing so poses a potential shock hazard and is also a violation of
electrical safety standards applicable to this type of equipment.
WARNING: Do not operate this equipment in the presence of flammable liquids, vapors
or aerosols. Operation of any electrical instrument in such an environment constitutes a
safety hazard.
WARNING: Extreme care should be exercised when accessing the interior of the remote
display. Only qualified electrical maintenance personnel should perform connections and
adjustments. Always remove AC power before working inside the remote display’s
enclosure.
IMPORTANT: The protection provided by the remote display may be impaired if the
remote display is used in a manner not specified by Bacharach, Inc. Modifications to this
remote display, not expressly approved, will void the warranty.
IMPORTANT: In case of malfunction, do not continue to use this equipment if there are
any symptoms of malfunction or failure. In the case of such occurrence, de-energize the
power supply and contact a qualified repair technician or the nearest Bacharach Service
Center. Use ONLY the provided knockouts for electrical and communication wiring.
Drilling into the box will void the warranty.
WARNING: To clean the outside of the case use a DRY CLOTH. DO NOT use soap and
water.
IMPORTANT: This device is designed for operation at or below an altitude of 6,562 ft
(2,000 m). Do not operate this device above this altitude limit.
1.4. Communications Options
The MZ-RD features full two-way communications via an RS-485 interface. MODBUS RTU is the
communication protocol standard. The instrument (P/N 3015-5138) can be connected to a Building
Management System or it may be operated as a stand-alone system with Bacharach’s gas monitors.
Please refer to the Appendix for a more complete discussion of communication protocols.
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CHAPTER 2.
INSTALLATION
2.1. Warnings and Cautions
WARNING: Explosion hazard! Do not mount the MZ-RD in an area that may contain
flammable liquids, vapors or aerosols. Operation of any electrical equipment in such an
environment constitutes a safety hazard.
WARNING: Electrical installation should be performed by a certified electrician, and
should comply with all applicable NEC/CEC and local electrical safety codes.
WARNING: The AC power ground wire must first be connected to the monitor’s ground
stud. Under no circumstances should this monitor be operated without a protective
ground. Doing so poses a potential shock hazard, and is also a violation of electrical safety
standards applicable to this type of equipment.
WARNING: Shock hazard! Always disconnect AC power before working inside the
monitor.
CAUTION: Drilling holes in the MZ-RD enclosure may damage the unit and will void the
warranty. Please use provided knockouts for electrical connections.
CAUTION: The MZ-RD contains sensitive electronic components that can be easily
damaged. Be careful not to touch or disturb any of these components.
2.2. Preliminary Inspection
The MZ-RD has been thoroughly inspected and tested prior to shipment from the factory. Nevertheless,
it is recommended that the instrument be re-checked prior to installation. Inspect the outside of the
enclosure to make sure there are no obvious signs of shipping damage. Loosen the four screws on the
sides of the enclosure and remove the front panel. Visually inspect the interior of the display for loose
components that may have become dislodged during shipment. If damage is discovered, please contact
the nearest Bacharach Service Center for assistance.
2.3. Location of the Remote Display
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The MZ-RD should be centrally located in the facility (preferably outside of the mechanical room) and
should be easily accessible for visual monitoring and servicing. This is the “split architecture design” for
safety of the operator.
Dirt, grease, and oils can adversely affect the operation of the MZ-RD. The MZ-RD should be installed
out of direct sunlight in a clean, dry area that is not subject to temperature or humidity extremes.
Installation in a mechanical room is acceptable provided reasonable environmental conditions exist. If
there is a question, consider installing the unit outside of the mechanical room in a cleaner area of the
facility.
The MZ-RD can be located up to 4500 feet (1372 m) from the furthest gas monitor. The MZ-RD is the
main machine interface by which you can program the gas monitor, acknowledge alarms, and observe
conditions inside the mechanical room. Note that there are two additional alarm relay contacts in the
MZ-RD that can be programmed to alarm with “leak, spill, evacuate, fault or monitor on”.
2.4. Mounting Instructions
The MZ-RD should be installed plumb and level and securely fastened to a rigid mounting surface.
The enclosure utilizes
keyhole mounting
brackets designed for
¼ inch fasteners.
Locate the four
screws as shown in
the diagram below or
by using the provided
mounting template.
Allow the screw
heads to protrude
approximately 1/4"
(6 mm).
MZ-RD Mounting Specs
Hold the unit flat
against the mounting
surface and allow it
to slide down
engaging the screw
heads in the keyhole
slots of the mounting
brackets. Adjust the
screws as necessary
to hold the unit
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securely against the
mounting surface.
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2.5. Interior Components
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2.6. Electrical Wiring
Locate a convenient service knockout and install electrical conduit in the typical manner.
Locate the AC Input Terminals and Ground Stud on the inside of the unit. Secure the incoming
AC power neutral (white/blue) and live (black/brown) wires to the LINE 1 and LINE 2 terminals.
Using the supplied crimp-on ring terminals, washers, and nuts, connect the incoming AC power
ground wire (green w/ yellow stripe) to the unit’s AC Input Ground Stud, and then install a
separate wire between the ground stud and the GND terminal.
WARNING: Electrical installation should be performed by a certified electrician, and
should comply with all applicable NEC/CEC and local electrical safety codes.
WARNING: Copper conductors for connection to supply mains must be made in
accordance with NEC/CEC and local codes.
WARNING: The AC power ground wire must first be connected to the unit’s ground stud.
Under no circumstances should this monitor be operated without a protective ground.
Doing so poses a potential shock hazard, and is also a violation of electrical safety
standards applicable to this type of equipment.
CAUTION: Drilling holes in the MZ-RD enclosure may damage the unit and will void the
warranty. Please use knockouts provided for electrical connections.
MZ-RD AC Input Power and Ground Connections
GROUND WIRE
TO ENCLOSURE DOOR
GREEN
Use supplied crimp-on
ring terminal, washers,
and nuts to connect AC
input ground wire to
Ground Stud as shown
to meet approval
agency requirements.
AC INPUT
GROUND WIRE
GREEN W/ YELLOW STRIPE
IMPORTANT!
AC input ground
wire must be
positioned on
bottom of Ground
Stud
GROUND STUD
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A switch or circuit breaker rated 1.0 A, 250 VAC must be attached to the unit’s AC power leads.
This switch must also be located in close proximity to the monitor, and be in easy reach of the
operator. This switch should also be clearly marked as the monitor’s main AC disconnect
device.
2.7. Communications Connections
2.7.1 MZ-RD Network
The MZ-RD is connected to the gas monitor using a shielded twisted pair instrument cable. The
maximum distance between the furthest gas monitor and MZ-RD is 4500 feet (1372 m).
Use any of the remaining service knockouts to gain access to the interior of the unit. The RS-485
communication wiring between the gas monitor and MZ-RD must be connected in the following
manner:
1. Locate the RS-485 connector in the gas monitor (See appropriate gas monitor manual).
2. Connect one lead of a twisted shielded pair to the “B” connection point; note the wire
color.
3. Connect the second wire to the “A” connection point; note the wire color.
4. Connect the ground to the “GND” connection point
Locate the RS-485 connector marked “TO MONITORS” in the MZ-RD. This connector is located
on the bottom of the MZ-RD PC board, second from the right. Run the wire to the MZ-RD and
connect the twisted shielded pair to the RS-485 TO MONITORS connector using the same color
code as used on the gas monitor.
RS-485 to HOST Connector
2.7.2 Integration with Building Management
System
A second RS-485 connector allows a Building
Management System to “talk” to the gas monitor
network through the MZ-RD. The connection is
established using a shielded twisted pair cable.
Use any of the remaining service knockouts to gain
access to the interior of the MZ-RD. Locate the RS-485
connector marked “TO HOST” and remove it from the
circuit board. Secure the wire leads to the connector in
the orientation as displayed on the board. Check to
make sure the polarity matches the wiring to the
Building Management System. When connections are
secured, carefully plug the connector back onto the
circuit board.
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2.8. Connecting External Alarms
2.8.1 Overview
Two SPDT relays are available for the connection of external alarm devices. These alarms are
useful for alerting the user to global conditions anywhere on the network. Each relay can be
programmed to respond to alarm, fault, or ready conditions.
2.8.2 Connection
Use the AC conduit or any of the remaining service knockouts to gain access to the interior of the
MZ-RD. Locate the relay connectors and remove them from the circuit board. Secure the wire
leads to the connectors orienting them as shown in the diagram below. After connections are
secured, carefully plug the connectors back onto the circuit board.
MZ-RD Relay Connector
NOTE: Each relay can be connected as normally open (NO), or normally closed (NC).
NOTE: Power for the external alarms can be tapped off the AC IN connector.
NOTE: The relay contacts are rated 2A at 250VAC (inductive) and 5A at 250VAC
(resistive).
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CHAPTER 3.
OVERVIEW
3.1. General
The MZ-RD displays comprehensive information about the gas monitor network status and
enables complete programming control of all system operations.
When first powered up, a splash screen appears indicating the firmware revision number. After a
brief moment the System Screen is displayed.
The System Screen
LOCATION
ZONE 01 LOC
After the System screen is displayed, press the ENTER key.
The Monitor 1 location block on the screen will highlight and
begin to flash.
With Monitor 1 selected,
1. Press ENTER to access other screens that contain
information and setup criteria for Monitor 1.
2. Use the Arrow keys to make data entry selections on each
screen.
3. Press the ENTER key to accept the entries or use ESC to
cancel and return to the previous screen.
4. When programming is completed, use the ESC key to return to the System screen.
To access Monitors 2, 3 or 4, use the down Arrow key. Access information for these monitors in
the same manner as described above for Monitor 1.
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In like fashion, use the Arrow keys to navigate through the screens and the ENTER key to make
selections for ALARMS, FAULTS, ZONES, the date/time or MZ-RD SETUP.
Some of the screens you will access will require data entry, such as the date/time setup. These
screens will appear with a character selected, as displayed below. Use the up/down Arrow keys
to scroll through the characters provided for that character’s place. Use the left/right Arrow keys to
move the cursor on the text line. When all character selections for the screen are completed,
press ENTER to accept the entries.
3.2. System Programming
3.2.1. Setup Parameters
Before working with the gas monitor network, several global parameters must be defined. Most of
these are entered in the MZ-RD Setup Screens or via the PC software. Parameters must also
be defined for each gas monitor connected to the network. These settings serve to identify each
monitor and define how they operate. These are entered in the Setup Screens. Finally,
parameters must be defined for each individual monitoring zone. These are entered in the Zone
Setup Screens.
3.2.2. Password Protection
The MZ-RD can be password protected to prevent the unauthorized editing of setup parameters.
When password protection is enabled, an operator may still navigate between screens to observe
settings or monitor network status. The password can be alpha-numeric.
The unit is shipped with password protection OFF. Entering a password in the MZ-RD Setup
Screen #1 enables password protection. After protection is enabled, the user will be prompted to
enter the password when an attempt is made to edit a setup parameter.
After entering the password, a 30 minute time period will be allowed for entries, after which the
user will again be prompted to re-enter the password.
IMPORTANT: Make note of your password and save it.
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3.3. Setup Programming
3.3.1. Setting the Clock
On the System Screen, access the Clock setup screen.
Clock Setup Screen
Use the cursor keypad to modify the field value and accept your entries. When editing is
complete, do one of the following:
•
Select the SET RD CLOCK option to synchronize all gas monitors to the current date/time
setting.
•
Select the ESC option to cancel all edits and revert to the previous setting.
•
Press ENTER to accept the current date/time setting.
3.3.2. Navigating to the 1st MZ-RD Setup Screen
On the System Screen, select MZ-RD SETUP to access the MZ-RD Setup Screen #1.
MZ-RD Setup Screen #1
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3.3.3. Num Monitors on Net
This is the number of gas monitors connected to the MZ-RD.
NOTE: When first powered up, the MZ-RD will automatically detect all gas monitors
on the network with unique node addresses. Refer to Gas Monitor Node Address.
3.3.4. Monitor Baud
This is the baud rate of all gas monitors connected to the network. The default valve is 19200.
NOTE: All gas monitors on the network must have the same baud rate.
3.3.5. Audible Alarm
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This parameter selects the function of the MZ-RD’s internal audible alarm. Select Unused, Monitor
on, Evacuate, Spill, Leak, Fault, or Alarm.
3.3.6. BMS
This enables or disables the connection to a Building Management System. When selected, use
the UP/DOWN cursor keys to toggle the setting.
3.3.7. BMS Baud Rate
This is the baud rate of the Building Management System.
3.3.8. Password
This field is used to define a system password. The default setting is 000, which provides no
password protection.
3.3.9. Navigating to the 2nd MZ-RD Setup Screen
On MZ-RD Setup Screen #1, select MORE to access MZ-RD Setup Screen #2. Select BACK to
return to MZ-RD Setup Screen #1.
MZ-RD Setup Screen #1
MZ-RD Setup Screen #2
3.3.10. Setting Relay Parameters
This setting determines the function of relays 1 and 2 mounted inside the MZ-RD unit. Select
Unused, Monitor On, Evacuate, Spill, Leak, Fault, or Alarm.
NOTE: “Monitor On” means that the RD responds only to critical faults (i.e., any fault that
stops the units from monitoring, which includes lost communications with the MZ).
3.3.11. Node Address
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This value is the node address from 1 to 15 assigned to each gas monitor which is on the
network. These values must match the settings on each gas monitor.
3.3.12. Navigating to the 1st and then 2nd Monitor Setup Screen
From the System Screen, select the Multi-Zone unit you wish to set up to access that unit’s
Monitor Setup Screen #1.
System Screen
Monitor Setup Screen #1
On Monitor Setup Screen #1, select the SETUP option to go to Monitor Setup Screen #2. To
return to the System Screen, press ESC.
Monitor Setup Screen #2
NOTE: For description or information on changing these settings please refer to the
appropriate gas monitor instruction manual.
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3.3.13. Navigating to the 3rd Monitor Setup Screen
From Monitor Setup Screen #2, select the MORE option to go to Monitor Setup Screen #3.
Select the BACK option to return to Monitor Setup Screen #2. To return to the System Screen,
press ESC.
Monitor Setup Screen #2
Monitor Setup Screen #3
NOTE: For description or information on changing these settings please refer to the
appropriate gas monitor instruction manual.
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3.4. Zone Setup Programming
3.4.1. Navigating to the 1st Zone Setup Screen
From the System Screen, access the Monitor screen for the selected zone. On the Monitor
Screen, select ZONES.
System Screen
Monitor Screen
The Zone Setup screen will be displayed. To return to the System Screen, press ESC.
Zone Setup Screen #1
NOTE: For description or information on changing these settings please refer to the
appropriate gas monitor instruction manual.
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3.4.2. Navigating to the 2nd Zone Setup Screen
On Zone Setup Screen #1, select MORE to access Zone Setup Screen #2. Select BACK to
return to Zone Setup Screen #1. To return to the System Screen, press ESC.
Zone Setup Screen #1
Zone Setup Screen #2
NOTE: For description or information on changing these settings please refer to the
appropriate gas monitor instruction manual.
3.4.3. Navigating to the Trend Screen
On Zone Setup Screen #2, select the Trend option on the bottom left side to access the Trend
screen.
Zone Setup Screen #2
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Trend Screen
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The trend graph opens with the cursor located over the most recent data point. Use the
LEFT/RIGHT cursor keys to move the cursor to different data points. Holding a key down will
cause the cursor to move rapidly across the screen. As you move the cursor position, the date
and time of that reading, along with the ppm value, are displayed at the top of the screen above
the graph. The trend graph is automatically scaled to accommodate the largest ppm value
displayed. The ZOOM OUT and ZOOM IN options allow you to adjust the vertical scale of the
graph.
The trend data is stored on a first-in, first-out basis. After 100 trend values have been stored the
101st value will replace the first value stored. Therefore, in normal operation, when entering trend
mode the cursor will be located at the most recent data point. The data points to the left of the
initial cursor location will be the next most recent. The data point to the right will be the oldest
data point in the buffer and will be over written by the next data point.
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CHAPTER 4.
GENERAL OPERATION
4.1. Functional Overview
Normally each gas monitor will sequentially perform measurements on its active zones without
user input. The total time it takes a gas monitor to complete a measurement cycle is directly
proportional to the number of active zones and the physical length of the air lines. Monitors linked
together on a network operate independently of each other and consequently complete their
respective measurement cycles at different rates.
The MZ-RD operates by polling the network approximately once every 12 seconds to determine
the current status of the gas monitors. If more than one gas monitor is connected to the network,
it will sequentially poll each monitor for its status. This means that the more complicated the
network, the longer it will take the MZ-RD to update the status information for all zones.
To display all the zones being monitored, go to the System Screen and press the ZONES key.
4.2. The Zone Screen
The top level Zone Screen provides a summary view of zone activity across the network. Each
screen displays information from a single Multi-Zone monitor as indicated at the top of the display.
Each screen can display information for up to 8 zones, and depending on the configuration of the
system, there can be up to two screens for each Multi-Zone. Use the UP/DOWN cursor keys or
the NEXT key to scroll the screen display.
Each box displays the zone location and the last ppm measurement. A blinking box indicates that
a measurement is currently being taken in that location. An inverse flashing box indicates an
alarm condition in that zone.
Zone Screen
To further investigate the status of any zone, select the zone and press the ENTER key. That
monitor's Zone Setup Screen #1 will be displayed.
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4.3. Alarm Conditions
When an alarm condition is detected anywhere on the network the red alarm will glow. Additionally,
an external alarm device may activate and an audible alarm may sound if those features have
been enabled.
An inverse flashing box indicates an alarm condition in the affected zone. If manual
acknowledgement is required by the system setup, the alarm must be acknowledged by pressing
the left arrow key while this screen is displayed. If the right arrow key is pressed, setup information
for the alarm screen will be displayed
Zone Alarm Screen
If the current Zone Screen appears normal, scroll through the displays using the NEXT/BACK
keys or the UP/DOWN cursor keys until you locate the affected zone. To further investigate the
status of an affected zone, select the zone and press the ENTER key. That Zone’s Setup Screen
#1 will be displayed. You may also select ALARMS to access the Alarm Summary Screen.
Refer to Alarms on page 24 to learn more about responding to alarms.
4.4. Fault Conditions
If a system malfunction occurs, the yellow FAULT LED will glow. Additionally, an external alarm
device may activate and an audible alarm may sound if those features have been enabled.
From the top level Zone Screen, make sure no zones are selected and pres ENTER to go to the
System Screen and then press the FAULTS key to access the Fault Screen. Refer to System
Faults to learn more about responding to system faults.
Instruction 3015-5157
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MZ-RD – Multi-Zone Remote Display
Fault Screen
4.5. The System Screen
The System Screen provides a summary view of the entire gas monitor network. The boxes on
the left side of the screen indicate the status of each gas monitor. This includes the name, the
current zone, and if fault or alarm conditions are present on the network.
System Screen
4.5.1. Alarm Conditions
When an alarm condition is detected anywhere on the network the red ALARM LED will glow.
Additionally, an external alarm device may activate and an audible alarm may sound if those
features have been enabled.
The ALARMS box in the upper right hand corner of the screen will blink and the count value will
change to indicate the total number of alarm conditions on the network. To investigate an alarm,
select the ALARMS option to go to the Alarm Summary Screen. Refer to Alarms on page 24 to
learn more about responding to alarms.
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System Screen (Alarm Mode)
Alarm
Condition
4.5.2. Alarm Log
From the System Screen, access the gas monitor you wish to view.
System Screen
Monitor Setup #1 Screen
Select the ALARM EVENT LOG option and press ENTER to display the Alarm Log Screen.
Instruction 3015-5157
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MZ-RD – Multi-Zone Remote Display
Alarm Log Screen
L=LEAK S=SPILL E=E
VACUATE
Use the key pad
left/right keys to
move through the
log.
Use the LEFT/RIGHT and UP/DOWN cursor keys to move through the log.
The Alarm log shows the last 20 alarm events. An alarm event is the occurrence of any alarm,
any change in alarm level, or the clearing of any alarm. The alarm level is indicated by an L
(leak), S (spill), or E (evacuate). The time and date of the alarm are displayed when the cursor is
placed over the alarm.
4.5.3. Fault Conditions
If a system malfunction occurs, the yellow FAULT LED will glow. Additionally, an external alarm
device may activate and an audible alarm may sound if those features have been enabled.
The FAULTS box on the right of the screen will blink and then counts the number of gas monitors
on the system with a fault. To investigate a fault, select the FAULTS option to go to the Fault
Screen. Refer to System Faults to learn more about responding to system faults.
System Screen (Fault Mode)
ALARMS
COUNT = 01
Fault
Condition
24
FAULTS
COUNT = 01
Instruction 3015-5157
MZ-RD – Multi-Zone Remote Display
4.6. Alarms
4.6.1. Functional Overview
If the ppm level for any zone exceed its designated spill, leak, or evacuate thresholds, an alarm
condition will be created. Once the gas monitor completes a measurement cycle in the affected
zone the alarm condition will be indicated. At that time the red ALARM LED on the gas monitor
will glow. Additionally, an external alarm device may activate and an audible alarm may sound if
those features have been enabled.
The next time the MZ-RD polls the affected monitor, its red ALARM LED will glow. Additionally,
an external alarm device may activate and an audible alarm may sound if those features have
been enabled.
The alarm condition may or may not have to be acknowledged for the system to return to normal
operation.
4.6.2. Responding to Alarms
There are two screens from which an operator can respond to alarms:

From the System Screen, select the ALARMS field to go to the Alarm Summary Screen.

From the top level Zone Screen select the ALARMS field at the bottom of the display
screen to go to the Alarm Summary Screen.
Alarm Summary Screen
ALARMS
The Alarm Summary Screen displays a list of all alarm conditions pending across the network.
The screen is divided into 8 boxes, and each box represents a single alarm. If more than 8
alarms are pending additional pages can be displayed by pressing the MORE key.
Each box displays the zone number, zone name, and the current ppm reading. A flashing box
indicates an alarm that has not been acknowledged. A static box represents an alarm that has
been acknowledged but has not yet been cleared from the system.
Instruction 3015-5157
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MZ-RD – Multi-Zone Remote Display
4.6.3. Alarm Detail Screen
To further investigate an alarm, select the alarm on the Alarm Summary screen, then press
ENTER to access the Alarm Detail Screen.
Alarm Detail Screen
The Alarm Detail Screen displays more comprehensive information about the nature of the alarm
including:
•
Complete location information
•
Refrigerant and current ppm
•
Peak ppm and peak time
•
Type of alarm, alarm time, and date
This screen provides the following three options at the bottom of the display:
ACK (<<)
Acknowledges the alarm as described in the next section
ESC
Returns to the Alarm Summary Screen
SETUP (>>)
Navigates to Zone Setup Screen #1, which enables you to review the zone
setup parameters and access the Trend Screen
4.6.4. Acknowledging Alarms
Each pending alarm may require, depending upon selected alarm mode, acknowledgment before
the system returns to normal operation (refer to Alarm Ack Mode). To acknowledge an alarm,
navigate to the Alarm Detail Screen and press the ACK key as previously described. You will
then be returned to the Alarm Summary Screen and the box associated with that alarm will no
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Instruction 3015-5157
MZ-RD – Multi-Zone Remote Display
longer be blinking, indicating that the alarm has been acknowledged. Repeat this procedure to
acknowledge any remaining alarms.
Alarm Summary Screen (Acknowledge Mode)
ALARMS
When all the alarms associated with a given gas monitor are acknowledged, its RED LED will turn
off and any external alarms connected to the gas monitor relays will de-activate. All pending
alarms across the entire network must be acknowledged before the MZ-RD returns to normal
operation. When that occurs, its RED LED will turn off and any associated external alarms
connected to the MZ-RD relays will de-activate.
The system will continue to generate new alarms if ppm values above the alarm thresholds are
detected.
4.7. The Trend Screen
4.7.1. Overview - Log Interval
The gas monitor retains a data log of 100 measurements for each zone. The log interval is the
number of minutes from 1 to 1440 between each log point. This parameter can be changed from
Zone Setup Screen #1.
The default setting for this parameter is 1440 minutes (24 hours). If the log interval time is set to
0, then a measurement is recorded in the trend log after every measurement cycle. Therefore,
after the trend log is filled it will contain the last 100 measurement points for a zone. If you want
the data logged less frequently you should increase this value. It is important to remember that
cycle time is dependent on many factors, including the number of zones being monitored, input
line length, and the run zeroing mode selected. Before changing this value it may be useful to first
review the log data using the Trend Screen to determine the nominal cycle time.
4.7.2. Navigating to the Trend Screen
Access the Trend Screen from the Zone Screen as follows:
Instruction 3015-5157
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MZ-RD – Multi-Zone Remote Display
From the top level Zone Screen press the key adjacent to the zone you wish to work with to first
display its Zone Setup Screen #1. Then press the TREND key at the bottom of the display to go
to the Trend Screen.
Trend Screen
The trend graph opens with the cursor located over the most recent data point. Use the
LEFT/RIGHT cursor keys to move the cursor to different data points. Holding a key down will
cause cursor to move rapidly across the screen. As you move the cursor position, the date and
time of that reading, along with the ppm value, are displayed at the top of the screen above the
graph. The trend graph is automatically scaled to accommodate the largest ppm value displayed.
The ZOOM OUT and ZOOM IN options, located in the bottom corners of the screen, allow you to
adjust the vertical scale of the graph.
The trend data is stored on a first-in, first-out basis. After 100 trend values have been stored the
101st value will replace the first value stored. Therefore, in normal operation, when entering trend
mode the cursor will be located at the most recent data point. The data points to the left of the
initial cursor location will be the next most recent. The data point to the right will be the oldest
data point in the buffer and will be over written by the next data point.
4.8. System Faults
4.8.1. Functional Overview
If a system malfunction occurs, the gas monitor will detect the problem and cause its yellow
FAULT LED to glow. Additionally, an external alarm device may activate and an audible alarm
may sound if those features have been enabled.
The next time the MZ-RD polls the affected monitor its yellow FAULT LED will also glow.
Additionally, an external alarm device may activate and an audible alarm may sound if those
features have been enabled.
Depending on the nature of the fault, the gas monitor may or may not continue to operate
normally. Under a non-critical fault condition, the gas monitor will continue to measure and log
data, but some peripheral functions may be compromised. Under a critical fault condition, action
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Instruction 3015-5157
MZ-RD – Multi-Zone Remote Display
is required for the gas monitor to operate normally. The table on the following page lists the
various fault conditions and explains what action should be taken to correct the problem.
4.8.2. Navigating to the Fault Screen
On the System Screen, select FAULTS to access the Fault Screen.
System Screen
Fault Screen
4.8.3. Critical Faults
• NO FLOW ON ZONE – On the System Screen, select ZONES. The Zone Screen will
display a “NO FLOW” message in each individual zone affected. Check for a blockage in the
air sample line or at the line end filter. After the blockage has been cleared, the gas monitor
will return to normal operation after the zone has been sampled. NOTE: This may take
several minutes since it is dependent upon how many zones there are and their lengths. The
gas monitor will clear the fault the next time it polls the effected zone and the MZ-RD will
return to normal operation the next time that it polls the gas monitor.
• NO FLOW ON PURGE – Check the purge line for a blockage. Verify that the length of the
purge line and exhaust line do not exceed 300 feet (91 m) in length.
• NO FLOW DETECTED – Check for proper pump operation. Check the water trap – drain if
necessary.
• CLIPPING FAULT – The detector voltage may be out of tolerance. Check the Diagnostic
Screen for the DET voltage, AVE voltage and ZERO voltage. Call the factory with this
information for further instructions.
• REZERO VOLT TOL – The detector output voltage is out of tolerance. Check the
Diagnostic Screen and contact the factory for assistance.
• TRIGGER FAULT – No trigger from IR source pulser. Contact factory with all information
from the DIAGNOSTIC SCREEN for farther instructions.
Instruction 3015-5157
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MZ-RD – Multi-Zone Remote Display
4.8.4. Non Critical Faults
• BOX TEMP FAULT – Enclosure’s internal temperature is outside normal range (or IR sensor has
failed). Check the installation to verify that the monitor is not being subjected to extreme
temperatures. Verify that the ventilation holes are not obstructed. Check the Diagnostic
Screen for the ZERO temperature, BNCH temperature and BOX temperature. Call the
factory with this information for further instructions.
• BENCH TEMP FAULT – IR sensor is outside of normal operating range (or sensor has failed).
Check the installation to verify that the monitor is not being subjected to extreme
temperatures. Check the Diagnostic Screen for the ZERO temperature, BNCH temperature
and BOX temperature. Call the factory with this information for further instructions.
• PRESSURE SENSOR – Manifold pressure is outside normal operating range (or sensor has
failed). Check the Diagnostic Screen record ALL data. Call the factory with this information
for further instructions.
• LOOP FAULT – This would only be displayed if the dual 4-20 mAdc option was installed and
one or both current loops are open. Check the wiring to load/monitoring circuit on both 420 mA loops.
• CONFIG FAULT – There is an error in Monitor Setup Screen #2 – Number Zones Installed
field, or in MZ-RD Setup Screen #1 – Number of monitors on Network field. Check that the
number of zones installed for each unit and the number of units on the network are properly
programmed. Check to ensure that the manifold solenoid cable connector in each unit is
securely fastened to its terminal connector. Check for an illegal parameter. If necessary, reset
to the factory default settings.
4.8.5. Reset to Factory Default Settings
IMPORTANT: Performing this function deletes all program parameters, alarms, faults,
trends and log files.
Resetting a Multi-Zone
1. Press and hold down the UP and DOWN arrow keys on the MZ monitor.
2. Cycle AC power OFF then ON.
3. Hold the keys until the second beep is heard.
4. The screen will indicate “This unit has been reset to factory default conditions”.
5. Release the keys.
6. Reprogram the MZ as described in this manual.
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Instruction 3015-5157
MZ-RD – Multi-Zone Remote Display
Resetting the MZ-RD – Occasionally it will be necessary to rest the MZ-RD to its factory default
settings.
1. Press and hold down the UP and DOWN arrow keys on the MZ monitor.
2. Cycle AC power OFF, then ON;
3. Release the keys after the second beep is heard.
4.8.6. Clearing System Faults
If the fault condition is associated with a gas monitor, the monitor will return to normal operation
soon after the problem is corrected. At that time the YELLOW LED will turn off and any external
alarms connected to the monitor’s alarm relays will also turn off. The MZ-RD will return to normal
operation the next time it polls the affected gas monitor.
Once the system malfunction has been corrected it may take some time for the fault condition to
clear completely. If the fault is associated with a specific zone, the gas monitor must first cycle
back to the affected zone before it returns to normal operation. At that time the YELLOW LED will
turn off and any external alarms connected to the monitor’s alarm relays will also turn off. The
MZ-RD will return to normal operation the next time it polls the affected monitor.
4.8.7. Viewing Fault Log
A data log of the last 20 fault conditions is retained in memory. From the Fault Screen press
ENTER to display the fault log.
Fault Screen
Fault Log Screen
The Fault Log screen lists potential fault conditions in the left column. It also displays a check
mark indicating which problems were associated with each fault condition, as represented by the
vertical cursor bar. As you move the bar horizontally using the LEFT/RIGHT cursor keys, the date
and time the fault condition was detected is displayed in the upper right hand corner of the display
window.
Anytime the fault status changes, there is an entry in the fault log, both when the fault occurs and
when it is cleared.
Instruction 3015-5157
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MZ-RD – Multi-Zone Remote Display
4.9. The Calibration Screen
NOTE: Calibration cannot be performed on the remote device. Information for
performing this procedure on the main monitor is provided below.
4.9.1. Overview
The Calibration Screen is used to adjust the calibration factor for each refrigerant gas. It is also
used to program the instrument for new gasses.
IMPORTANT: Changing information on CAL FACTORS will VOID the factory
calibration. Typically, the unit will remain within the factory-calibrated accuracy
indefinitely and no calibration is required. Complex software algorithms adjust for
temperature drift, IR source aging, and pressure changes in order to keep the unit
within factory accuracy specifications.
4.9.2. Navigating to the Calibration Screen
On the System Screen, select the target gas monitor and access that monitor’s Setup Screen
#1. Then select the CAL option to go to the selected monitor’s Calibration Screen.
Setup Screen
32
Setup Screen
Instruction 3015-5157
MZ-RD – Multi-Zone Remote Display
Calibration Screen
4.9.3. Adjusting Calibration Factor
The factory default cal factor for standard units is 1.000. This value may be different if the high
accuracy option is ordered.
Modifications to calibration must be done on each monitor. If calibration is attempted from the MZRD unit, the “Use monitor front panel interface to adjust calibration” message is displayed.
4.10. The Diagnostic Screen
4.10.1. Overview
The Diagnostic Screen displays reference values for use by repair technicians for
troubleshooting purposes.
4.10.2. Navigating to the Diagnostic Screen
On the System Screen, select the gas monitor you wish to view and press ENTER to access that
monitor’s Setup Screen. Press the DIAG key to go to the selected monitor’s Diagnostic Screen.
System Screen
Instruction 3015-5157
Setup Screen
33
MZ-RD – Multi-Zone Remote Display
Diagnostic Screen
4.10.3. Diagnostic Screen Overview
The Diagnostic Screen contains sensor data and status information useful for trouble shooting
various fault conditions. An explanation of each line of this screen is given below along with normal
operating ranges.
Field Name
xxxx FEET
xx ZONE name
34
Description
Programmed length of tubing for an active zone.
Current active zone and user-programmed name. This field may also show “WARM UP” during warm
up mode.
DET
Detector Voltage – Peak-to-peak output of the IR sensor. In the absence of gas, this value range is
4.100V to 4.300V.
AVE
Average Detector Voltage – Running average of the values displayed in line 1.
ZERO
Zero Voltage – IR sensor output that was stored during the last purge cycle and has the same range as
line 1.
NOISE
A 16 point running average of the noise portion of IR bench output. This reading is valuable mostly
when gas is not present.
AVEAU
Average Absorbency – Optical absorbency computed from the Average Detector Voltage and Zero
Voltage. In the absence of selected gas, the absorbency is 0.000AU. When sampling desired gas, its
value varies proportionally with the gas concentration.
UM/L
uMoles/L – Absolute concentration in micro-moles per liter of gas based on Noise and the internal
calibration. There are two figures displayed. The first (annotated by a B) is the actual measurement at
the IR bench. The second is the calculated value corrected to ambient conditions (temperature +
pressure).
Instruction 3015-5157
MZ-RD – Multi-Zone Remote Display
Field Name
Description
PPM
Parts Per Million is the volume concentration referenced to standard temperature and pressure and is
computed from the Average Absorbency, Zero Temperature and Ambient Pressure. There are two
figures displayed. The first (annotated by a B) is the actual PPM at the IR bench. The second is a PPM
reading normalized to standard temperature and pressure.
ZERO
Zero Temperature – Displays the sensor and enclosure temperature measured and stored during the
last purge cycle in degrees C.
BENCH
Bench Temperature – Current IR sensor temperature in degrees C as well as the raw voltage coming
from the temperature sensor. This value can range from ambient to ambient +15 degrees C.
BOX
Box Temperature – This is the current internal enclosure temperature along with the raw voltage from
the temperature sensor, and has the same range as the Bench temperature.
PRES
Pressure – This is the current absolute manifold pressure in PSIA along with the output voltage of the
pressure sensor. This value should always be 0.2 to 1.0 PSIA below ambient (AMB).
VAC
Vacuum – The vacuum pressure is measured every purge cycle by closing all sample valves. Its value is
typically 2.5 to 4.0 PSIA below ambient pressure.
AMB
Ambient – Ambient pressure is measured every purge cycle with the sample pump off and the
manifold open. Its value is weather and altitude dependent and can range from 10.0 to 15.5 PSIA.
FAULT
Fault code listed in hexadecimal. See Fault Code list.
y.yyyX
Calibration multiplier used when measuring concentration.
TCx.xxxx
MODBUS data
Temperature Compensation – magnitude of voltage applied to sensor output (in volts). Factory use
only.
485 RX=x
485 TX=x
Receive port number of bytes
Transmit port number of bytes
FUNC
REG=xxxxx
Function
Register address
4.11. Service Mode
When activated, the Service Mode will disable a specific gas monitor for a specified length of time,
up to 240 minutes (4 hrs) to permit time for servicing the unit. The default is 60 minutes. This
time interval can be changed as described in the Service Timeout section.
IMPORTANT: Note that while in the Service Mode, no measurements are made, nor are alarms
activated.
1. From the System Screen, select the gas monitor you wish to place into Service Mode.
2. On Monitor Setup Screen #1, select SERVICE MODE ENTRY. An IN SERVICE option
will appear to continue to “CONFIRM” or to “QUIT”.
3. To confirm IN SERVICE, press the ENTER key twice within 3 seconds.
Note that the System Screen will display which monitors are in the Service Mode.
To exit the Service Mode, select QUIT.
Instruction 3015-5157
35
MZ-RD – Multi-Zone Remote Display
System Screen
System Screen (Service Mode)
Monitor Setup Screen #1
IN SERVICE
CONFIRM/QUIT
Monitor in
Service
Mode
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Instruction 3015-5157
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MZ-RD – Multi-Zone Remote Display
APPENDIX A. LOGIC DIAGRAM
ZONE SCREEN
SYSTEM SCREEN
DIAG
ALARMS
FAULTS
ALARM
DETAIL
FAULT
DATA LOG
CLOCK
MZ-RD
SETUP #1
MONITOR
SYSTEM
MZ-RD
SETUP #2
CALIBRATE
MONITOR
SETUP
ZONE
SETUP #1
TREND
38
ZONE
SETUP #2
Instruction 3015-5157
MZ-RD – Multi-Zone Remote Display
Instruction 3015-5157
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MZ-RD – Multi-Zone Remote Display
APPENDIX B. SPECIFICATIONS
MZ-RD Specifications
Product
Description
The Remote Display provides remote programming, interrogation and display
functionality to support Bacharach’s gas monitors. The system design
supports compliance to ANSI/BSR ASHRAE 15-2007 and ASHRAE Safety Code
34-2007.
Inputs
The MZ-RD accepts inputs from up to four gas monitors. It offers a wide
variety of displays and can fully program any associated monitor.
Display
Back lit LCD.
Data Logging
The user may view a graphical display of the ppm trend for each zone.
Power Indication:
Green LED glows when AC power is applied
Alarm Indication:
Red LED glows and alarm condition is displayed
Fault Indication:
Yellow LED glows and fault condition is displayed
Password
Protection
The MZ-RD can be password protected to prevent the unauthorized
editing of setup parameters without disturbing the ability to monitor
system outputs.
Power Safety Mode
Fully automatic system reset; all parameters maintained
Monitoring
Distance
Up to 4500 feet (1372 m) from furthest gas monitor
Communications:
Full two-way communication with gas monitor monitors via RS-485
interface.
econd RS-485 interface provided for connection to a Building Management
System.
Relays:
Two SPDT programmable alarm contacts are provided rated 2A at
250VAC (inductive) and 5A at 250VAC (resistive)
Operating Temp
32 to 113 °F (0 to 45 °C)
Ambient Humidity
5 to 90% (non-condensing)
Size/Weight
11" x 10" x 3" (27.9 cm x 25.4 cm x 7.6 cm)
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Instruction 3015-5157
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MZ-RD Specifications
(HxWxD)
Weight
5 lbs. (2.3 kg)
AC Power
100 to 240 VAC, 50/60 Hz, 20 W
Mounting
Wall mount
Certification
UL 61010-1, CAN/CSA 22.2 No. 61010-1 & CE Mark
Warranty
2 years from date of shipment
Altitude Limit
6,562 ft (2,000 m)
Specifications subject to change without notice
Instruction 3015-5157
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MZ-RD – Multi-Zone Remote Display
APPENDIX C. AGENCY APPROVALS
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MZ-RD – Multi-Zone Remote Display
APPENDIX D. SERVICE CENTERS
Replacement parts and service can be obtained by contacting one of the following Bacharach
Service Centers.
United States
Bacharach, Inc.
621 Hunt Valley Circle
New Kensington, PA 15068-7074
Phone: 724-334-5000, 800-736-4666
Fax: 724-334-5723
Email: [email protected]
Canada
Bacharach of Canada, Inc.
20 Amber Street Unit #7
Markham, Ontario L3R 5P4 Canada
Phone: 905-470-8985
Fax: 905-470-8963
Email: [email protected]
Europe
Murco Limited – a Bacharach Company
114a Georges Street Lower
Dun Laoghaire
Co. Dublin
Ireland
Phone: 353 1 284 6388
Fax: 353 1 284 6389
Email: [email protected]
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Instruction 3015-5157
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Headquarters:
621 Hunt Valley Circle, New Kensington, PA 15068-7074
Toll Free: 800-736-4666 • Tel: +1-724-334-5000 • FAX: +1-724-334-5001
Website: www.MyBacharach.com • E-mail: [email protected]
Printed in U.S.A.
Instruction 3015-5157
® Registered Trademark of Bacharach Inc.
45
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