Bacharach MVR-SC User manual

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Ethernet
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Refrigerant Leak Detection
P/N: 1100-2162 | June 2019 Revision 0
Quick Start
Guide
Refrigerant Leak Monitor
System Controller for MVR-300 Refrigerant Detectors 3. Component Overview
5. Network Planning
4. Accessories
Bacharach, Inc.
621 Hunt Valley Circle,
New Kensington, PA 15068 USA
Bacharach USA Customer Service: [phone]
Bacharach CAN Customer Service: [phone]
Bacharach EU Customer Service: [phone]
mybacharach.com | [email protected]
IMPORTANT: The MVR-SC must be installed by a suitably qualied
technician who will install this unit in accordance with these
instructions and the standards in their particular industry / country.
This document is only intended as a guide and the manufacturer
bears no responsibility for the installation or operation of this unit.
2. Safety Instructions (Continued)
IMPORTANT: Comply with all local and national laws, rules and
regulations associated with this equipment. Operators should be
aware of the regulations and standards in their industry / locality
for the operation of the MVR-SC.
IMPORTANT: Prior to installation, download the MVR-SC oorplan
spreadsheet available from Bacharach. This sheet has editable
elds for Floor / Room and non-editable elds for Modbus ID
and Gateway IP address. These elds are to be completed during
planning in order to ensure correct wiring and function:
Floor / Room
Modbus (Slave) ID − number between 2 and 16. Refer to the MVR-
SC User Manual (P/N: 1100-2184) for more details on Modbus
connectivity.
Gateway IP Address − Each gateway has a unique, required IP
address. (The rst should be 192.168.0.1, followed by 192.168.0.2
and so forth. A maximum of 7 gateways may be connected in a
subnetwork.)
CSV Spreadsheet − le will need to be saved in a .CSV format in
order to upload to the MVR-SC.
1. Save the oorplan spreadsheet as a .CSV format and
upload onto the USB stick at the device root folder. The
lename must be “data.csv.”
2. Upload the oorplan spreadsheet to the MVR-SC from the
USB stick using steps on the next page.
Figure A (System Conguration)
DANGER: This product HAS NOT been designed for use in
hazardous locations. Failure to comply may result in personal
injury or death.
WARNING: NEVER connect the product’s 24V DC inputs directly
to AC power supply.
WARNING: DO NOT apply power until all wiring has been
completed.
CAUTION: The protection provided by this product may
become impaired if it is used in a manner not specied by the
manufacturer. Modications to this instrument, not expressly
approved, will void the warranty.
CAUTION: 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 qualied
repair technician or the nearest Bacharach Service Center.
IMPORTANT: Before using this product, carefully read and
strictly FOLLOW THE INSTRUCTIONS in the user manual.
1. Introduction
The MVR-SC Refrigerant Leak Monitor provides infomation and
audio-visual alerts on the status of a network of refrigerant
detectors in a centralized location outside of the monitored
space. The MVR-SC displays comprehensive information about
the status of all connected gas detectors and is compatible with
Bacharach’s MVR-300 VRF Refrigerant Leak Detector.
Additional resources (including the user manual &
oorplan spreadsheet) are available online. To download
these resources, scan here or visit http://bit.ly/2MdlvyP.
2. Safety Instructions
# COMPONENT DESCRIPTION
1PLC / Touch Screen
2USB Port
3Ethernet Port
(Requires Shielded Cat 6 Cable)
4Fault Relay
(250 VAC / 30 VDC, 2.0 AMP)
5Alarm Relay
(250 VAC / 30 VDC, 2.0 AMP)
6Modbus Terminal Block
(Requires Belden 3106 or Equivalent. Shielded 1.5 pair twisted)
7Power
(24 VDC IN)
8Cable Entries (×4)
Modbus Cable Description 1,000' (304.8 m) spool of industrial-grade Modbus cable.
P/N: 1100-2193
Ethernet Switch Description Connects the MVR-SC and individual gateways.
P/N: 1100-2172
Modbus Gateway Description Each gateway supports a network of up to 15 MVR-300 VRF
Refrigerant Leak Detectors.
P/N: 1100-2198
Modbus EZ-Wire Kit Description Precisely stripped, pre-bonded wire provides faster, more
consistent installation to the MVR-300 Modbus port.
P/N: 1100-2190
Product Description / Part Number
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B.
C.
6. Installation
WARNING: NEVER connect the product’s 24V DC inputs directly
to AC power supply.
WARNING: DO NOT apply power until all wiring has been
completed.
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PowerModbus
Alarm RelayFault Relay
Ethernet (on side)
Modbus
12345
Magnetic
Switch B
Magnetic
Switch A
Figure F. (Magnetic Switch Locations)
Additional resources for the MVR-300 VRF Refrigerant
Leak Detector are available online. To download these
resources, scan here or visit http://bit.ly/2wr9eMn.
7. Network Setup
STEP A | Upload the Floorplan into MemorySTEP A | Mounting the MVR-SC Refrigerant Leak Monitor STEP C | Connecting Gateways
STEP B | Connecting Relays (User Discretion)
STEP B | Commission MVR-300s (Continued)
4. After the Network Conguration Screen ( )appears, select
Upload CSV to load the oorplan spreadsheet into memory
and generate all oors / device groupings.
1. Conrm that the display turns on. After the First-time
Setup Screen appears, select the Settings icon ( ).
When prompted, enter the passcode (default is “6388”).
2. After the Settings Screen ( )appears, connect the USB
stick which contains the planning spreadsheet to the
controller.
3. Select Network Conguration.
Optionally, the MVR-300 may be taken out of this mode by
briey tapping Magnetic Switch B (··).
7. Select the Commission Button ( )next to the appropriate room.
8. Select Commission Device to push the correct Modbus ID
to the active MVR-300 and enable Modbus polling. (A green
checkmark will appear once the device has been paired.)
After activation, each room tile will display the following:
• Floor / Room Number
• Gateway IP Address
• Assigned Modbus ID
• Device Status (Normal, Alarm, Fault, Comm. Error)
6. Installation (Continued)
1. Mount the MVR-SC according to the product dimensions
and following considerations:
• Environment: place the MVR-SC in an indoor setting free
from the risk of exposure to water, high humidity or any
hazardous conditions.
• Accessibility: ensure that the MVR-SC’s touch screen is
readily accessible for viewing alerts and responding to
alarm conditions.
2. Connect the controller to a 24V DC, rated power supply.
Figure B. (Power & Modbus Connections)
3. If used, connect the relay output(s) to equipment that will
be triggered by the relay. (Take care to ensure proper wiring
for intended function: normally open and / or normally closed.)
Figure C. (Relay Connections)
4. Using Cat 6 cable, connect the Ethernet output from the
controller to the gateway(s).
If multiple gateways are in use, use an Ethernet switch to
connect all gateways and the MVR-SC onto the same local
subnetwork.
5. Connect the Modbus cable to the gateway output as
depicted below.
Figure D. (Modbus Connection to Ethernet Gateway)
Pins 1 and 2 are not used. The Modbus cable shield may be
left oating or tied to G (electrical ground) at the gateway only.
6. Each gateway can support a maximum of 15 MVR-300 leak
detectors connected in a daisy chain fashion using Modbus
network cable.
A+ (Modbus) Orange
B- (Modbus) White
G (Modbus) Blue
(Power) Green / Yellow
- (Power) White
+ (Power) Red
Common White
Normally Closed Blue
Normally Open Black
3A+ (Modbus) Orange
4 B- (Modbus) White
5 G (Modbus) Blue
7. Leaving no more than 12″ (30.5 cm) for the single wire tie-o
to each MVR-300, connect to the Modbus port as depicted
in the gure below.
For faster, more consistent installation, use the Modbus
EZ-wire kit (P/N: 1100-2190) to connect each MVR-300.
Figure E. (Modbus Connection to MVR-300)
STEP D | Connecting MVR-300 VRF Refrigerant Leak Detectors
9. Repeat these steps for each room on a oor and each oor
in the building until all MVR-300s have been commissioned.
The Home Screen will display “System Normal” once all
MVR-300s have been commissioned.
STEP B | Commission MVR-300s
5. Access the Floors Screen ( ) and select the desired oor.
Each room / device marked with the same oor name in
the planning spreadsheet will be grouped onto that oor
block.
6. Working in coordination with a colleague, place one
MVR-300 into “commissioning mode” by briey (less than
1 second) tapping Magnetic Switch A (·).
A+ (Modbus) Orange
B- (Modbus) White
G (Modbus) Blue