Honeywell SV2 Series User Manual page 43

4. CHECKOUT AND OPERATION OVERVIEW
WARNING!
Explosion Hazard and Electrical Shock Hazard.
Can cause explosion, serious injury or death.
• Do not allow fuel to accumulate in the combustion chamber for longer than a few seconds without lighting. An
explosive mixture can result.
• Do not put the system into service until you have satisfactorily completed the Valve Seat Leak Test as detailed in the
SV2 Series installation instructions (32-00018), all applicable tests described in the Checkout section of the flame
safeguard control manual, and any other tests required by the burner manufacturer.
• All tests must be performed by a trained, experienced combustion service technician.
• Close all manual fuel shut-off valves as soon as trouble occurs. After the installation is complete, perform the Valve
Seat Leak Test before putting the valve into service.
A. Valve Connection and Accessory Leak Test
B. Valve Seat Leak Test
WARNING!
Electrical Shock and Explosion Hazard.
Can cause explosion, serious injury or death.
Remove the power from the system before beginning the valve leak test to prevent electrical shock. More than one
disconnect may be involved. Power the system only when requested in the test procedure.
A B
GAS
SUPPLY
PRV SSOV
UPSTREAM
2
MANUAL
GAS VALVE
1/4 IN. (6 MM)
FLEXIBLE
TUBING
1/4 IN. (6 MM)
ALUMINUM OR
COPPER PILOT
TUBING
1
(13 MM)
2
1 CAN ALSO BE A PERMANENT PETCOCK.
2
PRV = PRESSURE REGULATING VALVE.
3
SSOV = SAFETY SHUTOFF VALVE.
4 USE ONLY ONE OF THE DOWNSTREAM TAPS ON THE SSOV.
SV2 Series Safety Shut-off Valves
V2F, V2V
The leak test should be performed during the initial startup of the burner system, or
whenever the vale is replaced. It is recommended that this test also be included in the
scheduled inspection and maintenance procedure.
Per the installation instructions, the test requires a rich soap and water solution used
with a series of manual safety shut-off valve closures and valve seats being powered
to check for possible leaks.
C M / O E Before putting the valve into service, the closure tightness of the gas
DOWNSTREAM
LEAK
MANUAL
4
shut-off valves must be checked. It should be performed only by trained,
TEST
GAS VALVE
TAP
experienced combustion service technicians during the initial startup or
the burner system or whenever the value is replaced. It is recommended
BURNER
that this test should also be included in the scheduled inspection and
3
F
maintenance procedures.
MANUAL
Follow the detailed step-by-step instructions laid out in the SV2 Series
1
TEST
PETCOCK
Installation Instructions, which is packed with each valve.
NOTE: In order to complete the leak test procedure outlined in the valve
JAR OR GLASS
WITH WATER
installation instructions, it is necessary to energize the valve seats.
Valves with intelligent features can be readily energized if the Installer
+ OEM passwords have already been assigned, thereby removing faults
associated with un-assigned passwords. For an un-programmed valve,
the user must log in with the default OEM password and/or assign
CUT AT
Installer + OEM passwords in order to bypass the fault conditions
45 DEGREE
ANGLE
associated with un-assigned passwords in order to energize the valve
seats. Default passwords are automatically pre-filled in the appropriate
field during the initial user login.
NOTE: The use of a gas "sniffer" is not recommended as an alternative
M9547H
to this procedure as it can only sense gas leaks through the outer wall.
SV2 SERIES SAFETY SHUT-OFF VALVES USER MANUAL
43