Specifications; Electrical; Operational Environment; Sylk™ Supported Devices - Honeywell Centra Line MERLIN NX Series Installation Instructions Manual

MERLIN NX IP AND MST/TP VAV CONTROLLER - INSTALLATION INSTRUCTIONS

SPECIFICATIONS

Electrical

Parameter
Rated input
20 - 30 VAC; Class 2 transformer
voltage
IP model: 6.24 VA; controller and actuator
Nominal
load (nothing connected to IO and COM)
Power MSTP model: 7.68 VA; controller and
actuator load (nothing connected to IO and
Consumption
COM)
IP model: 30 VA; maximum load including
external loads, Sylk™, communication,
BLE, universal IO, and 20 VDC output
(excluding the load on the solid state
relays).
MSTP model: 22 VA; maximum load
including external loads, Sylk™,
communication, BLE, universal IO output,
Full Load
and 20 VDC output (excluding the load on
Power the solid state relays).
If the solid state relays are used, user needs
Consumption
to determine the full load power
consumption (or VA rating) as per the below
example.
Example for a transformer load (VA); if there
is an addition of parallel load from two solid
state relays with 24 VAC @ 1.5 A: Total
transformer load on a fully loaded controller
will be 30 VA + 72 VA = 102 VA.
Frequency
50 to 60 Hz
Range
Auxiliary
20 VDC @ 75 mA
Output

Operational Environment

Parameter
Storage
-40 °C to 66 °C (-40 °F to 150 °F)
Temperature
Operation 0 °C to 50 °C (32 °F to 122 °F)
Humidity 5 % to 95 % RH, non-condensing
Protection IP20, NEMA -1
Pollution Level 2
Sylk™ Supported Devices
Parameter
CLCMTR40, CLCMTR40-H, CLCMTR40-H-
CO2, CLCMTR40-CO2, CLCMTR42,
Wall
CLCMTR42-H, CLCMTR42-H-CO2,
Modules
CLCMTR42-CO2, CLCMTR71-H,
Sensors
CLCMTR120 (TR75E) and CLCMTR120-H
(TR75-HE)
EN1Z-1076GE51 R0722
Specification
Specification
Specification

Hardware

Parameter
CPU
Memory
Capacity
Ethernet
(IP Model only)
Real Time
Clock
Small LED
Large LED

Integrated Actuator

Parameter
Torque
Run Time
Mounting
Shaft
Shaft Length
Position feedback via integrated potentiometer
• Periodic synchronization not required.
• Additional diagnostic, for example, the command to change
the actuator position does not provide a corresponding sensor
reading — actuator stuck or potentiometer damaged.

Differential Pressure Sensor

Parameter
±2.0 H
Range
Accuracy ±3 % of full range
Field replaceable differential pressure sensor.
4
Specification
Crossover processor NXP I.MRT, Cortex
M7
16 MB QSPI Flash, 16 MB SDRAM
Two each RJ-45 Ethernet ports.
• 24-hour backup after power failure.
• In case of power failure, the controller
includes a super capacitor to retain the
time set with the built-in real time clock
for 24 hours. After 24 hours, the time
will reset to the factory default time until
the user performs a BACnet Time
Sync.
Transmission or reception of BACnet and
Modbus communication signal (green)
Controller status such as normal operation,
firmware download, broken sensor, e.g.
green, yellow or red
Specification
44 in-lbs (5 Nm)
• Floating 108 s at 50 Hz
• Floating 90 s at 60 Hz
• Round 5/16 – 5/8 in (8 - 16 mm)
• Square 1/4 – 1/2 in (6 -13 mm)
≥
1 5/8 in (41 mm)
Specification
O (±500 Pa), bi-directional
2