Specifications

Control Valves - SMARTLINK
®
MRV
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combustion systems for industry
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Table 6: SMARTLINK
®
MRV Relay Input Interface Terminal Descriptions and Wiring Speci-
fications
Table 6: SMARTLINK
®
MRV Relay Input Interface Terminal Descriptions and Wiring Specifications
Terminal Number / Name Description
Power Connections
14-22 AWG
No length limitations other than voltage drop considerations
Follow all local required wiring codes
Supply 24VDC (S24+) System power supply +24VDC (+/- 5%), 50 mA (max when all inputs are energized)
Supply 24VDC Common (S24-) System power supply common
Command Input Drive Signals
(To Control Interface signals, RI1-RI6)
14-22 AWG wire
No length restrictions other than voltage drop considerations
Follow all local required wiring codes
Note: The following command input drive signals are solid-state
#1 Output: Greater than 5 VDC in ON state when terminal #24 is energized.
#2 Output: Greater than 5 VDC in ON state when terminal #22 is energized.
#3 Output: Greater than 5 VDC in ON state when terminal #20 is energized.
#4 Output: Greater than 5 VDC in ON state when terminal #18 is energized.
#5 Output: Greater than 5 VDC in ON state when terminal #16 is energized.
#6 Output: Greater than 5 VDC in ON state when terminal #14 is energized.
Relay Command Inputs
(From burner management system)
The following relay command inputs are solid-state with the following specifications:
Input On-State Voltage: 120VAC (230VAC and 24VDC options available)
Input On-State Current:: 25 mA (max for each input)
Input Off-State (Leakage) Current: 4 mA
14-22 AWG wire
No length restrictions other than voltage drop considerations
Follow all local required wiring codes
Note #1: All relay command inputs must be referenced to the COM terminal
#14
Input: When energized with 120VAC (230VAC or 24VDC with other models), greater than 22VDC will appear at terminal #1
(which should be wired to terminal RI6 of the SMARTLINK
®
MRV Control Interface).
#16
Input: When energized with 120VAC (230VAC or 24VDC with other models), 22VDC (or greater) will appear at terminal #2
(which is wired to terminal RI5 of the SMARTLINK
®
MRV Control Interface).
#18
Input: When energized with 120VAC (230VAC or 24VDC with other models), 22VDC (or greater) will appear at terminal #3
(which is wired to terminal RI4 of the SMARTLINK
®
MRV Control Interface).
#20
Input: When energized with 120VAC (230VAC or 24VDC with other models), 22VDC (or greater) will appear at terminal #4
(which is wired to terminal RI3 of the SMARTLINK
®
MRV Control Interface).
#22
Input: When energized with 120VAC (230VAC or 24VDC with other models), 22VDC (or greater) will appear at terminal #5
(which is wired to terminal RI2 of the SMARTLINK
®
MRV Control Interface).
#24
Input: When energized with 120VAC (230VAC or 24VDC with other models), 22VDC (or greater) will appear at terminal #6
(which is wired to terminal RI1 of the SMARTLINK
®
MRV Control Interface).
COM Relay command input common