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SV2 Series Safety Shut-off Valves
173
V2F, V2V
SV2 SERIES SAFETY SHUT-OFF VALVES USER MANUAL
7800 SERIES and ControLinks
R7999
11
LCI
MV
14
LCO
RM7800L
RM7838B/C
EC7840L
DEMAND (VPS)
RECTIFIER
V1
V2
INTERNAL
ELECTRONICS
N
10
HIGH FIRE
PURGE SWITCH
HFS
RUN/LOCKOUT
INTERLOCKS
L1
L1
ILKOUT
MV1
MV2
ILKIN
POC
VPS
L1
N
GROUND
L1
CTRL
LIMITS
13
INTERLOCKS
PRE-IGNITION
INTERLOCK
VALVE PROVING
SWITCH
MAIN VALVE 1
5
6
8
1
7
1
2
3
6
5
4
9
9
4
M35597B
VPS CONTACT OUTPUT FROM SV2 SERIES VALVE ONLY APPLICABLE WHEN THE SV2
SERIES PRESSURE MODULE IS USED FOR EXTERNALLY-INITIATED VALVE PROVING
SEQUENCE BY BURNER MANAGEMENT OR OTHER CONTROL. THIS FEATURE MUST
BE ENABLED AND PROGRAMMED VIA THE HMI OR PC TOOLS WHEN COMMISSIONING
THE VALVE.
5
WHEN THE SV2 SERIES VALVE PRESSURE MODULE IS ENABLED, PROGRAMMED AND
USED FOR LOW GAS PRESSURE AND HIGH GAS PRESSURE LIMITS, THE LIMITS ARE
INCLUDED IN THE INTERNAL ILK (INTERLOCK) VALVE STRING. BASIC (5) ELECTRONICS
VALVES DO NOT HAVE THE ABILITY TO INTERFACE WITH THE SV2 SERIES VALVE
PRESSURE MODULE OR VPS FUNCTIONALITY. AN EXTERNAL PRESSURE SWITCH
MUST BE USED WITH THESE VALVE MODELS.
FOR RM7838 CONTROLS, WIRE THE SV2 SERIES VALVE ILK (INTERLOCK) AHEAD OF
THE LOCKOUT INTERLOCKS AND COMBUSTION AIR BLOWER SWITCHES.
LINE VOLTAGE RELAY SPDT, WITH NC CONTACT WIRE INTO THE LINE FROM
RM/EC SUBBASE MAIN VALVE TERMINAL 9 AND R7999 SUBBASE TERMINAL 11.
RELAY NEEDED FOR VPS APPLICATION IF BEFORE, SPLIT OR BOTH SELECTED.
NOT REQUIRED WHEN AFTER IS SELECTED.
INDICATES FEEDBACK SENSING OF RELAY CONTACT STATUS AND LINE VOLTAGE.
1 MATCH SV2 SERIES VALVE AND FLAME SAFEGUARD VOLTAGES.
.
ILK (INTERLOCK) WIRING RUN THROUGH THE SV2 SERIES VALVE FOR SOLENOID
POWER SAVING FEATURE. APPLICABLE TO ALL SV2 SERIES VALVE MODELS.
2
3
6
7
8
ILK (INTERLOCK) WIRING AS SHOWN KEEPS VALVE SOLENOIDS ENERGIZED IF VPS
IS PERFORMED AFTER, BOTH OR SPLIT RELATIVE TO THE CALL FOR HEAT DEMAND.
OTHER CONNECTIONS BETWEEN R7999 AND RM/EC NOT SHOWN. OBSERVE R7999
WIRING PER ITS MANUAL.
4
9
OBSERVE FLAME SAFEGUARD WIRING PER ITS MANUAL.
RECTIFIER
SV2 SERIES VALVE
7800 SERIES AND ControLinks
10
POC (PROOF OF CLOSURE) MUST BE FACTORY INSTALLED, INTERNALLY WIRED
AND CALIBRATED.
10
11
FOR DUAL FUEL APPLICATIONS, AN APPROVED CENTER-OFF POSITION FUEL
SELECTION SWITCH IS REQUIRED. ADDITIONALLY, THE BURNER CONTROL DEMAND
TERMINAL INPUT MUST BE SWITCHED FROM VPS/GAS TERMINAL 17 TO OIL
TERMINAL 6. REFER TO R79999 MANUAL FOR FURTHER DETAILS.
8
11
11
MAIN VALVE 2
11
Fig. 155: 7800 SERIES and ControLinks with BASIC or STANDARD Electronics, External VPS Used.