Specifications

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Control Valves - SMARTLINK

MRV

www.maxoncorp.com

combustion systems for industry

Maxon reserves the right to alter specifications and data without prior notice.

10-30.7-54

E - i - 3/14

50120624-001/

NOTES:

NOTE 1: Recommended wire color code for SMARTLINK

MRV Control Network

NOTE 2: All shields should terminate to GND within 6" of where it enters the cabinet.

NOTE 3: Blue 14AWG MTW/AWM wire is to be used on 4-20 mA signal.

NOTE 4: Type "J" thermocouples are color coded with white as (+) and red as (-). Type "K" thermocouples are color coded with yellow as (+) and

red as (-). Thermocouple wires must be run in separate conduit.

NOTE 5: Installation, operation, and maintenance shall conform with local standards, national and local codes, and authorities having jurisdiction.

NOTE 6: Wire numbers assigned only to SMARTLINK

MRV Interface Panel.

NOTE 7: Symbol Key

NOTE 8: The ground reference for all input command signals must be wired by the customer and its termination depends on the relay input

interface purchased (i.e. VAC vs. VDC).

NOTE 9: WARNING: Relay contacts CE1/CE2R (and CO1/CO1R for systems with software version release 1C or later) must be wired in series

with the burner management permissive/interlock circuit to ensure the burner can be shut down in the event of a SMARTLINK

MRV

failure. If the SMARTLINK

MRV system is purchased without a MAXON Relay Output Interface (ROI), the commissioning engineer is

responsible for verifying that appropriate interface relays are wired to the burner management system and Control Interface relay drive

outputs, RO2 (and RO5 for systems with software version release 1C or later).

NOTE 10: This wiring schematic represents electrical connections in a "typical" product application. Please refer to the schematics of the specific

application for troubleshooting.

Component

Terminal

Designation

SMARTLINK

MRV Network Cable

MAXON

(not to exceed 100 ft.)

Belden

(not to exceed 300 ft.)

F24+ / +24 white / orange brown

F24- / GND orange blue

DA white / blue white

DB blue black

Indicates terminals and wiring in SMARTLINK MRV control panel

Indicates component terminals

Indicates SMARTLINK MRV interface panel DIN-rail terminal block

Indicates adjacent SMARTLINK MRV interface panel DIN-rail terminal blocks jumpered together

Indicates external wiring

Maintain the integrity of the MAXON enclosure by using NEMA 4X or IP66 rated dust- and water-tight

electrical connectors. Use cable-sealing grips and strain-relief loops for any cord or cable. Use internal

sealing materials on all conduit connections. Moisture can have a harmful effect on device internals if

permitted to enter through wiring connectors. Ensure that the device connection is not at a low point of the

conduit to avoid condensation run-off into the housing; install a drip loop if necessary. Make sure that the

access cover plate is in place and securely fastened. All cover screws should be tightened using an

alternate cross-corner tightening pattern. Cover screws should be checked periodically to ensure

adequate sealing protection.