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SV2 Series Safety Shut-off Valves
159
V2F, V2V
SV2 SERIES SAFETY SHUT-OFF VALVES USER MANUAL
Electronics Orientation Change Process
If wiring has already been completed, the task will be more involved. The directions below include any necessary considerations
for completed wiring.
WARNING!
Explosion or Fire Hazard
Can cause severe injury, death, or property damage.
• Turn off gas supply before starting installation
• Disconnect power supplies before beginning
installation
• More than one disconnect can be involved
WARNING!
Electric Shock Hazard
Can cause serious personal injury or death.
• Disconnect power supply before beginning
installation
• More than one disconnection can be involved
WARNING!
Explosion Hazard and Electrical Shock Hazard.
Can cause explosion, serious injury or death.
• Disconnect the power supply making wiring connection to prevent electrical shock and equipment damage.
• More than one power supply disconnect can be involved.
IMPORTANT
• Use only flexible conduit with the SV2 Series valve NEMA 4/IP66 enclosures
• Wiring must comply with all applicable electrical codes, ordinances and regulations.
• Wiring must comply with NEC Class 1 (line voltage) wiring.
• Use lead wire which can withstand 90°C (194°F) ambient temperatures.
• Voltage and frequency of the power supply connected to this control must agree with those marked on the device.
• Loads connected to the VPS (valve proving sequence) Switch and/or POC (proof of closure) contacts, if used, must not
exceed the ratings given in
Table 8
, Field Wiring and Terminal Designation.
• Separate line and low voltage to avoid signal interference. If using conduit, run line voltage and low voltage wiring in
separate conduit.
1.
Ensure that:
a. The line voltage has been removed from the valve.
b. The gas supply is turned off and that the manual safety shut-off valve(s) are closed.
c. The valve is stabilized and will not tip over or fall.
2.
Remove the valve front electrical enclosure retaining screws with the appropriate tool to access the
customer wiring terminals.
3.
Disconnect all applicable connectors from their sockets inside the main valve electrical enclosure. Refer to
Fig. 144
.
a. Leave the CHASSIS GROUND connection in place.
b. Leave the FUEL/AIR, and PRESSURE connectors in place (if applicable).
Open
Closed
Self Test
Fault
LGP
HGP
Open
Closed
Reset
MCR37165