Honeywell V5055A Manual page 8

V5055A-F INDUSTRIAL GAS VALVES
NUT AND WASHER
(NOT INCLUDED)
CAUTION
Equipment Damage Hazard.
Operation without proper checkout can damage
the equipment.
1. Do not put the system into service until you have
satisfactorily completed the following Valve Leak
Test, all applicable tests described in the Checkout
section of the Instructions for the flame safeguard
control, and any other tests required by the burner
manufacturer.
2. All tests must be performed by a trained,
experienced flame safeguard control technician.
3. Close all manual fuel shutoff valves as soon as
trouble occurs.
After the installation is complete, cycle the valve several times
with the manual fuel shutoff cock closed. Make sure the valve
and actuator function properly. Also perform the Valve Leak
Test that follows before putting the valve into service.
Valve Leak Test (Fig. 7)
This is a test for checking the closure tightness of a gas
safety shutoff valve. It should be performed by qualified
personnel during the initial startup of a burner system, or
whenever the valve or valve bonnet is replaced (see
Service Information section). It is recommended that this
test also be included in the scheduled inspection and
maintenance procedures. For a periodic inspection test,
follow steps 1, 3, 4, 5, 8, 9, 10, 12, 13, 16, and 17.
60-2307—15
4 IN. VALVE
GASKET
(2 INCLUDED WITH VALVE)
THREADED COMPANION
FLANGE (2 - NOT INCLUDED)
Fig. 6. Installing a 4 in. V5055 Valve.
8
5/8 X 3 IN. [76] BOLT
(16 - NOT INCLUDED)
4 IN. PIPE
A B
GAS
SUPPLY
PRV
UPSTREAM
2
MANUAL
GAS COCK
1
2
CAN ALSO BE A PERMANENT PETCOCK.
1
2 PRV = PRESSURE REGULATING VALVE.
3 SSOV = SAFETY SHUTOFF VALVE.
4 USE ONLY ONE OF THE DOWNSTREAM TAPS ON THE SS0V.
Fig. 7. Valve leak test.
1. De-energize the control system to assure that there is
no power to the safety shutoff valve (C) shown in Fig. 7.
2. Close the upstream manual gas cock (A).
3. Make sure the manual test petcock (F) is closed in the
leak test tap assembly (D).
M9581
C D E
DOWNSTREAM
LEAK
MANUAL
4
TEST
GAS COCK
TAP
BURNER
SSOV
3
F
1/4 IN. (6 MM)
FLEXIBLE
MANUAL
TUBING
TEST
PETCOCK
1/4 IN. (6 MM)
ALUMINUM OR
COPPER PILOT
JAR OR GLASS
TUBING
WITH WATER
(13 MM)
CUT AT
45 DEGREE
ANGLE
1
M9547F