Warning Indication For Sv2 - Honeywell SV2 Series User Manual

SV2 Series Safety Shut-off Valves
Fault Fault
Category Description
VPS VPS Test Failure
TIGHTENING TORQUES
A summary of all tightening torques for the SV2 Series valves and components can be found in
Table 27. SV2 Series maximum tightening torques.
Category Item
Valve Front electronics cover
enclosure (NEMA 1/IP20 and NEMA 4/
IP66
Rear solenoids cover
(NEMA 1/IP20 and NEMA 4/
IP66
Electrical enclosure fastener
tabs to valve metal bonnet
(NEMA 1/IP20 and NEMA 4/
IP66
Replacement electronics
assembly to the electronics
base
Detailed Description
Valve 2 proving sequence
has failed.
Picture
LGP HGP
Open
Fault
Self Test
Closed
L1 N MAINS CHASSIS ILK ILK VPS POC MV2 MV1
MAINS GROUND OUT IN
SUPPLY
LGP
Open
Self Test
Closed
Remediation Steps
1.) Check the piping train (is MOV closed,
piping flanges tight, O-ring leakage), main
electronics wiring and Pressure Module
connection to it. For wiring, refer to the
installation instructions, 32-00018. Reset
valve and repeat the VPS test.
2.) If fault persists, check system gas
pressure and repeat the VPS test.
3.) If fault persists, replace Pressure
Module.
4.) Accept new Pressure Module on the
PRESSMOD tab in the Setup & Tests
menu.
5.) Recommission the Hi-Gas and Lo-Gas
pressure limits. Repeat leak detection test.
6.) If fault persists, replace valve.
LGP HGP
Open Open
Fault
Open
Closed Self Test Reset Closed
Reset
Closed
M37170
M37171
MAINS
CONTROL WIRING
SUPPLY
GROUND ILK ILK VPS POC MV2 MV1
SOLENOID 1 SOLENOID 2 L1 N SOLENOID 1 SOLENOID 2
MAINS CHASSIS OUT IN SW
RS-485
MODBUS
+
–
HGP
LGP HGP
Open C
Open Open
Fault
Fault
MODBUS
OFF ON
Reset
Closed BIAS 1
Self Test Reset
TERMIN. 2 Closed Closed
BIAS 3
GND IN1 GND IN2
A
N
MOTOR
A
FUEL/AIR PRESSURE
L MOTOR
O FUEL/AIR PRESSURE
G
FIRE O2
RATE SENSOR
208
Comments Fault
Warning
indication
for SV2
valve.
But this
condition
will likely
cause a
burner
controller
lockout.
Table 2927.
Maximum Tightening
Torque
Nm
1.26-1.54
2.2-2.35
4-5
M37172
1.69-1.8
PROOF OF CLOSURE
POC 1 POC 2
RS-485
MODBUS
+
–
C
MODBUS
OFF ON
BIAS 1
TERMIN. 2
BIAS 3
GND IN1 GND IN2
A
N
A
L
O
G
FIRE RATE O2 SENSOR
MCR37173
#
63
In-lbf
11-13.63
19.5-20.8
35-44
15-16
32-00029—02