Honeywell Centra Line MERLIN NX Series Installation Instructions Manual
Ip and ms/tp vav controller
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- Installation & commissioning instructions (34 pages)
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MERLIN NX
IP AND MS/TP VAV CONTROLLER
General ......................................................................... 2
Trademark Information............................................... 2
Product Description ................................................... 2
Dimension.................................................................. 3
Network Security ......................................................... 3
General Safety Instructions ........................................ 3
Specifications .............................................................. 4
Electrical .................................................................... 4
Operational Environment ........................................... 4
Sylk™ Supported Devices ......................................... 4
Hardware ................................................................... 4
Integrated Actuator......................................................... 4
Differential Pressure Sensor...................................... 4
BACnet Communications........................................... 5
Modbus Client............................................................ 5
Weight And Dimensions............................................. 5
Universal IO ............................................................... 5
Solid State Relay (SSR) ............................................ 5
Wireless Connectivity ................................................ 5
Standards and Compliances...................................... 5
HARDWARE OVERVIEW ............................................. 6
IP Variant ................................................................... 6
MS/TP Variant............................................................ 6
Controller Terminals ................................................... 7
Service Button ........................................................... 8
Mounting ...................................................................... 8
Mounting Actuator onto Damper Shaft....................... 9
Airflow Sensor Connection ...................................... 10
Differential Pressure Installation .............................. 11
Airflow Sensor Replacement ................................... 12
Power supply ............................................................. 13
General Information ................................................. 13
Power Wiring ........................................................... 13
Power Wiring Examples........................................... 14
Input / Output Wiring ................................................. 15
Wiring Requirements ............................................... 15
Internal Wiring Examples......................................... 16
UIO Wiring Examples .............................................. 17
SSR (DO) Wiring Examples..................................... 18
20 VDC Auxiliary Wiring Examples.......................... 18
Networking Concepts................................................ 19
The RS485 Standard ............................................... 19
Network Topologies ................................................. 19
Daisy Chain ............................................................. 19
Spanning Tree Protocol (RSTP) .............................. 19
BACnet IP ................................................................... 20
DHCP IP Configuration ............................................ 20
® U.S. Registered Trademark
Copyright © 2022 Honeywell Inc. • All Rights Reserved
INSTALLATION
INSTRUCTIONS
Static IP Configuration ............................................. 20
Connect to a IP network........................................... 20
Antenna ...................................................................... 20
Installing the Local Antenna ..................................... 20
Installing the Remote Antenna ................................. 20
Remote Antenna Placement .................................... 21
BACnet MS/TP VARIANT ........................................... 22
Termination Resistors .............................................. 22
RS-485 Bias Switches ............................................. 22
BACnet MSTP Wiring Example ............................... 22
BACnet MSTP Controller........................................... 23
Automatic MAC Addressing ..................................... 23
Manual configuration of the MAC Address............... 23
Setting the Device Instance Number ....................... 24
Connecting to BACnet MS/TP Buses ...................... 24
Modbus RTU............................................................... 25
Modbus Defaults ...................................................... 25
Wiring Topology ....................................................... 25
Modbus Master Specifications ................................. 25
Sylk Bus™ .................................................................. 26
Supported wall modules........................................... 26
Sylk Bus Wiring Examples ....................................... 26
Bluetooth Balancing .................................................. 27
Overview .................................................................. 27
Troubleshooting......................................................... 28
BACnet and Modbus LED Status............................. 28
Bluetooth LED Status............................................... 28
Controller LED Status .............................................. 28
Regulatory Information ............................................. 30
FCC Regulation ....................................................... 30
Canadian Regulatory Statement.............................. 30
Approvals and Certifications .................................... 31
Appendix .................................................................... 32
Sensor Input Accuracy ............................................. 32
Sensor Characteristics.............................................. 32
PT1000 .................................................................... 33
PT3000 .................................................................... 36
NTC10K TYPE II ...................................................... 36
NTC10K TYPE III..................................................... 37
PT100 ...................................................................... 37
JOHNSON A99 ........................................................ 38
NTC20K ................................................................... 38
10K3A1 .................................................................... 40
Nickel Class B DIN 43760 sensors .......................... 41
NI1000TK5000......................................................... 42
Related Technical Literature ..................................... 43
EN1Z-1076GE51 R0722
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Table of Contents
Related Manuals for Honeywell Centra Line MERLIN NX Series
Summary of Contents for Honeywell Centra Line MERLIN NX Series
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Page 1: Table Of Contents
Daisy Chain ............. 19 NI1000TK5000............42 Spanning Tree Protocol (RSTP) ......19 Related Technical Literature ........43 BACnet IP ..............20 DHCP IP Configuration ..........20 ® U.S. Registered Trademark EN1Z-1076GE51 R0722 Copyright © 2022 Honeywell Inc. • All Rights Reserved... -
Page 2: General
ANT-REM communication due to environmental conditions. The packet contains four antennas. Table 3. Mobile Application Honeywell Connect Mobile Honeywell Connect Mobile application for the VAV balancing can be downloaded from the Google application Play Store / Apple App store. CLME B 24 N Brand Identifier... -
Page 3: Dimension
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Dimension 2 1/2” (66 mm) 7 1/4” (187 mm) 7” (175 mm) 5 3/4” 7 3/4” (147 mm) (197 mm) 4 3/4” (124 mm) 2” (52 mm) 3 1/2” (89 mm) 3 1/2”... -
Page 4: Specifications
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS SPECIFICATIONS Hardware Parameter Specification Electrical Crossover processor NXP I.MRT, Cortex Parameter Specification Memory Rated input 16 MB QSPI Flash, 16 MB SDRAM 20 - 30 VAC; Class 2 transformer Capacity voltage Ethernet IP model: 6.24 VA;... -
Page 5: Bacnet Communications
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS BACnet Communications Parameter Specification Parameter Specification Voltage input: 0(2) to 10 VDC direct or reverse. BACnet IP, BACnet MSTP, Sylk™, Current input: 0(4) to 20 mA Protocol supported Modbus RTU (Modbus client only), and BLE. -
Page 6: Hardware Overview
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS HARDWARE OVERVIEW IP Variant DECLUTCH BUTTON RS485 MODBUS MODULES Fig. 3. IP Model Hardware Overview MS/TP Variant DECLUTCH BUTTON RS485 MODBUS MODULES RS485 Fig. 4. MSTP Model Hardware Overview EN1Z-1076GE51 R0722... -
Page 7: Controller Terminals
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Controller Terminals Type Legend Printing Description Earth Ground (Connected to power earth ground) Ground Power Power supply voltage (Connected to 24VAC~) AC OUT 24VAC~ output SR IN SSR POWER input (Connected to terminal 4 (AC OUT) by a jumper wire) SSR1 output (if SSR1 is on this pin should be 24VAC~) Ground SSR2 output (if SSR2 is on this pin should be 24VAC~) -
Page 8: Service Button
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Service Button Pressing Service Button during Normal Operation During normal operation of the controller, a short press (< 1 sec) of the Service Button will cause a Service Pin Message (BACnet WhoAmI as a Private Transfer (SerialNo. -
Page 9: Mounting Actuator Onto Damper Shaft
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Mounting Actuator onto Damper Shaft MERLIN NX IP and MSTP VAV controllers can be mounted in any orientation. However, ensure that they are mounted in a position that allows clearance for wiring, servicing, removal, connection of the BACnet connector, and access to the service button. -
Page 10: Airflow Sensor Connection
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS The actuator mounts directly onto the VAV box damper b. The actuator is shipped with the mechanical end limits set at 95 degrees. Adjust the two mechanical end-limit shaft and has up to 44 in-lb. (5 Nm) torque, 90-degree set screws to provide the desired amount of rotation. -
Page 11: Differential Pressure Installation
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS NOTICE When twin tubing is used from the pickup, split the pickup tubing a short length to accommodate the connections. Dust particle contamination may be present in some applications. Ensure appropriate measures are taken to minimize the effect of particulate contamination. -
Page 12: Airflow Sensor Replacement
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Airflow Sensor Replacement Procedure to replace the airflow sensor is as follows: Gently pull the sensor cover outward and rotate it by 75 degree. Fig. 12. Removing the sensor cover Disconnect the electrical connector by gently pulling it away from the differential pressure sensor. -
Page 13: Power Supply
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS POWER SUPPLY Power Wiring All wiring must comply with applicable electrical codes and General Information ordinances, or as specified on installation wiring diagrams. Controller wiring is terminated to the screw terminal blocks To prevent a risk of injury due to electrical shock and/or located on the device. -
Page 14: Power Wiring Examples
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Power Wiring Examples Power Wiring Example For One Controller Per Transformer UL Listed Class 2 Transformer 24 VAC 120 / 240 100 VA Earth Ground MERLIN IP/MSTP CONTROLLER Power Wiring Example For Two Or More Controller Per Transformer UL Listed Class 2 Transformer 24 VAC... -
Page 15: Input / Output Wiring
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS INPUT / OUTPUT WIRING Wiring Requirements NOTE: When attaching two or more wires to the same terminal, other than 14 AWG (2.0 mm2), be sure to twist them together. Deviation from this rule can result in improper electrical contact, see Fig. -
Page 16: Internal Wiring Examples
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Internal Wiring Examples IP MODEL INTERNAL WIRING Fig. 16. IP Model Internal Wiring MSTP MODEL INTERNAL WIRING Fig. 17. MSTP Model Internal Wiring EN1Z-1076GE51 R0722... -
Page 17: Uio Wiring Examples
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS UIO Wiring Examples UO1 - UO7 Output Connection Example UIO1 - UIO7 Universal Input / Output (UIO) Output Type Load 0 to 10 VDC, 10 mA max. IN 0V 4 to 20 mA 0V IN 0V IN Voltage Output to Power External Relay... -
Page 18: Ssr (Do) Wiring Examples
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS SSR (DO) Wiring Examples SSR Wiring With One Transformer And Factory Jumper UL Listed Class 2 Transformer 24 VAC 120 / 240 VAC Field 100 VA Devices Earth Ground SR1 - SR5 Solid State Relay (SSR) MERLIN IP/MSTP VAV CONTROLLER SSR Wiring A With Separate Transformer Without Jumper Installed Field Device... -
Page 19: Networking Concepts
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS NETWORKING CONCEPTS Network Topologies — Recommended cable: Cat5/Cat6 The RS485 Standard — Maximum distance between 2 controllers or control- ler and switch should be less than 328 ft. (100 According to the RS485 standard (TIA/EIA 485: “Electrical meters) Characteristics of Generators and Receivers for Use in Balanced Digital Multipoint Systems”), only one driver... -
Page 20: Bacnet Ip
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS BACNET IP Connect to a IP network MERLIN NX BACnet IP VAV controller communicates over DHCP IP Configuration wired IPV4 network using Ethernet connection via one of two RJ45 ports. A new, from the factory controller has DHCP enabled. -
Page 21: Remote Antenna Placement
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS SMA Connector Remote Terminal nut Antennae Fig. 26. Remote Antennae Placement • Do not install the antenna close to the floor. Fig. 25. Installing a Remote Antenna Remote Antenna Placement •... -
Page 22: Bacnet Ms/Tp Variant
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS BACNET MS/TP VARIANT Termination Resistors Matched terminating resistors are required at each end of a Each MERLIN NX IP and MSTP VAV controller uses the segment bus wired across (+) and (-). Use matched BACnet MSTP communications. -
Page 23: Bacnet Mstp Controller
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS BACNET MSTP CONTROLLER The property maxMaster specifies the highest-allowable address for master nodes. The maxMaster is set to 64 by default, thus guaranteeing that, on a BACnet MS/TP bus Automatic MAC Addressing with, for example, 35 BACnet MSTP VAV controllers, all of the other BACnet MSTP VAV controllers will be found. -
Page 24: Setting The Device Instance Number
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Connecting to BACnet MS/TP Buses 1. Find an unused MAC address on the MS/TP network to which the MERLIN NX MS/TP VAV controller connects. The controller communicates via its BACnet MS/TP 2. -
Page 25: Modbus Rtu
RS485 Repeaters Baudrate 19200 RS485 repeaters are possible but have not been tested by Parity Even parity Honeywell. Therefore it is the responsibility of the installing Bytesize 8 bit / commissioning person to ensure proper function. Stopbits 1 stop bit NOTE: Each Modbus segment will require its own line polarization and line termination. -
Page 26: Sylk Bus
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Table 9. Recommended max. distances from controller — Ground noise should not exceed the EIA-485 com- mon mode voltage limit. to CLCMTR40x/CLCMT42x wall modules (Continued) — Must conform to TIA/EIA 485 cabling guidelines. “TIA/EIA 485 Cable Specifications”... -
Page 27: Bluetooth Balancing
Overview The Honeywell Connect Mobile (HCM) is a mobile application used for VAV balancing. The HCM app provides easy access to the MERLIN NX VAV controller via integrated Bluetooth. Make sure that the MERLIN NX VAV controller has a strong Bluetooth signal before connecting to the Honeywell Connect Mobile VAV Balancing app. -
Page 28: Troubleshooting
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS TROUBLESHOOTING The controller features the following LEDs: BACnet MODBUS STATUS Tx &Rx Tx &Rx Fig. 34. LED interface BACnet and Modbus LED Status Table 10. BACnet and Modbus LED Status Tx and Rx LED Mode Status... - Page 29 MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Controller LED Status Table 12. Controller LED Status Mode LED Status Visual Firmware download Green blinks every 200 ms. Red, Green, Yellow blinks every 1 s. No application Broken sensor Red permanent ON Short circuit AutoMac...
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Page 30: Regulatory Information
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS REGULATORY INFORMATION (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioelectrique subi, meme si le brouillage est susceptible FCC Regulation d'en compromettre le fonctionnement. This device complies with Part 15 of the FCC Rules. -
Page 31: Approvals And Certifications
PARLIAMENT AND OF THE COUNCIL of 18 December 2006 Concerning the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) Honeywell takes compliance with REACH very seriously. According to Article 33 “Duty to communicate information on substances in articles”: — Any supplier of an article containing a substance... -
Page 32: Appendix
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS APPENDIX Recognition of Sensor Failure of Sensor Inputs Sensor Input Accuracy The thresholds at which sensor failures – i.e., sensor The controller's internal sensor inputs support both breaks (SB) and short-circuits (SC) – are recognized NTC10K Ω... -
Page 33: Pt1000
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS PT1000 Terminal Terminal Terminal Temp. Temp Resistanc Temp. Temp Resistanc Temp. Temp Resistanc voltage voltage voltage [°F] .[°C] e [KΩ] [°F] .[°C] e [KΩ] [°F] .[°C] e [KΩ] Terminal Temp. Temp Resistanc 0.372... - Page 34 MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Terminal Terminal Terminal Terminal Temp. Temp Resistanc Temp. Temp Resistanc Temp. Temp Resistanc Temp. Temp Resistanc voltage voltage voltage voltage [°F] .[°C] e [KΩ] [°F] .[°C] e [KΩ] [°F] .[°C] e [KΩ] [°F] .[°C]...
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Page 35: Pt3000
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS PT3000 Terminal Terminal Terminal Temp. Temp Resistanc Temp. Temp Resistanc Temp. Temp Resistanc voltage voltage voltage [°F] .[°C] e [KΩ] [°F] .[°C] e [KΩ] [°F] .[°C] e [KΩ] Temp. Temp. Resistan Terminal 543.2 284 2063... -
Page 36: Ntc10K Type Ii
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS NTC10K TYPE II Termina Termina Termina Temp. Temp Resistanc Temp. Temp Resistanc Temp. Temp Resistanc l voltage l voltage l voltage [°F] .[°C] e [KΩ] [°F] .[°C] e [KΩ] [°F] .[°C] e [KΩ] Termina... -
Page 37: Ntc10K Type Iii
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS NTC10K TYPE III PT100 JOHNSON A99 Temp. Resistance Temp.[°C] [°F] [Ω] 76.7 1614 Temp. Resistance Temp.[°C Resistance Resistanc Temp.[°C] Temp. [°F] Temp. [°F] Temp.[°C] [°F] [Ω] [Ω] e [Ω] 79.4 1482 -37.2 203.6K... -
Page 38: Ntc20K
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS NTC20K Termina Termina Termina Temp. Temp Resistan Temp. Temp Resistan Temp. Temp Resistan l voltage l voltage l voltage [°F] .[°C] ce [KΩ] [°F] .[°C] ce [KΩ] [°F] .[°C] ce [KΩ] Termina Temp. -
Page 39: 10K3A1
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS 10K3A1 Termina Temp. Resistanc Temp. Resistanc Temp. Temp Resistan Temp.[°C] Temp.[°C] l voltage [°F] e [Ω] [°F] e [Ω] [°F] .[°C] ce [KΩ] 33.8 31031 111.2 4542 Temp. Resistanc Temp.[°C] 240.8 116 0.68 0.266... - Page 40 MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Temp. Resistanc Temp.[°C] [°F] e [Ω] 188.6 1005 190.4 192.2 195.8 197.6 199.4 201.2 204.8 206.6 208.4 210.2 213.8 215.6 217.4 219.2 222.8 224.6 226.4 228.2 231.8 233.6 235.4 237.2 240.8 242.6 244.4...
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Page 41: Nickel Class B Din 43760 Sensors
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS Nickel Class B DIN 43760 sensors T(R) = a´+b´(1+c´R)½ +d´R5+e´R7 dT < 0.12 K (higher order equations on request) The characteristic of the nickel temperature sensor is Coefficients specified as per DIN 43760. The large Temperature Coefficient of Resistance (TCR) of the Ni-RTD, 6178 —... -
Page 42: Ni1000Tk5000
MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS NI1000TK5000 Sensor Type Nominal Resistance Sensitivity : 1000 Ω Ni1000 TK5000 DIN B TC: 5000 ppm/K °F °C 790.88 830.84 826.8 822.78 818.76 814.75 810.75 806.76 802.78 798.8 794.84 871.69 867.57 863.45 859.34... -
Page 43: Related Technical Literature
EN1Z0990-GE51 CLCMTR40x/CLCMTR42x – Operating Guide EN2Z0990-GE51 Manufactured for and on behalf of the Connected Building Division of Honeywell Products and Solutions SARL, Z.A. La Pièce, 16, 1180 Rolle, Switzerland by its Authorized Representative: CentraLine Honeywell GmbH Subject to change without notice Böblinger Strasse 17...