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SV2 Series Safety Shut-off Valves
39
V2F, V2V
SV2 SERIES SAFETY SHUT-OFF VALVES USER MANUAL
Table 7. Factory Wiring Information.
Description
Purpose
Applicable Model(s)
SOLENOID 1
Connection from Solenoid 1 to main electronics. Enables powering of solenoid.
All
SOLENOID 2
Connection from Solenoid 2 to main electronics. Enables powering of solenoid.
PROOF OF CLOSURE
POC 1
Connection from Solenoid 1 POC to main electronics. Tied to the valve interface
Open and Closed LEDs. Refer to
Fig. 14
and
Fig. 21
.
All
(optional)
POC 2
Connection from Solenoid 2 POC to main electronics. Tied to the valve interface
Open and Closed LEDs. Refer to
Fig. 14
and
Fig. 21
.
FUEL/AIR
Module that measures gas, air and gas/air mix inputs from fuel/air system to
control the fuel/air premix valves. Works with stepper MOTOR.
V2V
MOTOR
Stepper motor performs valve modulation in response to changing conditions from
the fuel/air module and burner system
V2V
Table 8. Field Wiring and Terminal Designation
4
.
Description
Terminal
Purpose
Rating
6
Applicable
Model(s)
5
MAINS SUPPLY
1
L1
Valve incoming voltage supply L1 connection
24, 100-240VAC,15W
All
N
Valve incoming voltage supply neutral connection
GROUND
(PROTECTIVE EARTH PE)
MAINS
Valve external ground connection
All
CHASSIS
Valve chassis ground, connected to valve body grounding terminal
-
CONTROL WIRING
2
ILK OUT
Interlock wiring run through all valve models for solenoid power saving
feature. Dry contact output / input also used for flame safeguard control
ILK string with Pressure Module for low gas pressure and high gas
pressure functions.
24, 100-240VAC, 8A
All
ILK IN
VPS SW
Line voltage output for Valve Proving System switch, using the Pressure
Module, for external VPS conducted by a separate device
24, 100-240VAC, 0.1A
All models with Intelligent
Features of 6 or 7
POC
Line voltage output for Proof of Closure switch
24, 100-240VAC, 0.1A
All valves with POC
MV2
3
Main valve 2 and 1 incoming voltage from burner control. May be
jumpered if external VPS is NOT performed or if valve is an internal VPS
model (models with Intelligent Features of 8 or 9)
1 inch / DN25 Valves:
24VAC, 1.6A/35W
120VAC, 0.5A/55W
240VAC, 0.3A/55W
1.5/2.0 inch / DN40-50 Valves:
120VAC, 1.0A/110W
240VAC, 0.6A/110W
Per coil pull-in (2 sec) at 20°C/68°F
All
MV1
3
RS-485 MODBUS
2
+
Modbus Data + connection
For HMI or PC Tools or building
automation system connection
All models with Intelligent
Features of 6, 7, 8 or 9
-
Modbus Data - connection
C
Modbus common connection
MODBUS BIAS RESISTORS
BIAS
Bias resistor for differential resistance
Refer to section F.entitled Valve
Modbus Bias Setup
All models with Intelligent
Features of 6, 7, 8 or 9
TERM.
Termination resistor
BIAS
Bias resistor for differential resistance
PRESSURE
-
Field connection for Pressure Module, which can be used for Low gas
pressure, High gas pressure, VPS (external and internal), Leak detection
or pressure monitoring
-
All models with Intelligent
Features of 6, 7, 8 or 9