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SV2 Series Safety Shut-off Valves
165
V2F, V2V
SV2 SERIES SAFETY SHUT-OFF VALVES USER MANUAL
• remain closed during pre-purge through pre-ignition
otherwise a safety shutdown occurs.
At this time, the Pressure Module cannot be used for Lo-Gas / Hi-Gas limit operation on European 7800 SERIES models.
No External VPS (Valve Proving System) used; electronics configuration BASIC (5) or STANDARD (6)
Wiring between the SV2 Series valve and Honeywell 7800 SERIES, SOLA, 7800 SERIES and ControLinks and SLATE is shown in
this section.
7800 SERIES North American Standards (UL, CSA, FM, etc.)
DEMAND
RECTIFIER
V1
V2
INTERNAL
ELECTRONICS
N
RUN/LOCKOUT
INTERLOCKS
L1
L1
SV2 SERIES VALVE
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.
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.
AN EXTERNAL PRESSURE SWITCH MUST
BE USED WITH THESE VALVE MODELS.
OBSERVE FLAME SAFEGUARD WIRING
PER ITS MANUAL.
FOR RM7838 CONTROLS, WIRE THE SV2
SERIES VALVE ILK (INTERLOCK) AHEAD
OF THE LOCKOUT INTERLOCKS AND
COMBUSTION AIR BLOWER SWITCHES.
2
2
RM78XX
EC7840
EC7885
EC7890
EC7895
ILKOUT
MV1
MV2
ILKIN
POC
VPS
L1
N
GROUND
3
3
5
4
5
4
6
5
6
CONTROL
LIMITS
INTERLOCKS
PRE-IGNITION
INTERLOCK
MAIN VALVE 1/2
6
1
1
M35592A
L1
INDICATES FEEDBACK SENSING OF
RELAY CONTACT STATUS AND LINE
VOLTAGE.
FOR RM7890/EC7890 AND EM/EC7885
CONTROLS, WIRE THE SV2 SERIES
VALVE ILK (INTERLOCK) IN SERIES WITH
THE LIMITS AND CONTROLLER AS
THESE MODELS DO NOT HAVE AN
AIRFLOW SWITCH.
7800 SERIES
OPTIONAL
ILK WIRING
RECTIFIER
7 POC (PROOF OF CLOSURE) MUST BE
FACTORY INSTALLED, INTERNALLY
WIRED AND CALIBRATED.
7
Fig. 147: 7800 SERIES with BASIC or STANDARD Electronics, No External VPS.