BASO VLV49A Series - Manual (Page 6)

6 VLV49A Series Universal Replacement Gas Valve Technical Bulletin
IMPORTANT: This technical bulletin is intended as a guide for
authorized service personnel installing or servicing
BASO Gas products. Carefully follow all
instructions in this bulletin and all instructions on
the appliance. Limit repairs, adjustments, and
servicing to the operations listed in this bulletin or
on the appliance.
!
WARNING: Fire or Explosion Hazard. The system must meet
all applicable codes. Improper installation may
cause gas leaks, explosions, property damage, and
injuries.
!
WARNING: Fire or Explosion Hazard. To prevent leakage of
upstream gas, shut off the gas supply at the main
manual shutoff valve before installing or servicing
the VLV valve.
!
CAUTION: Equipment Damage Hazard. To prevent damage
to the valve when mounting to the manifold, do not
use a wrench on any surface other than the casting
flats provided at the inlet and outlet ends of the
valve body.
!
CAUTION: Equipment Damage Hazard. Label all wires prior
to disconnection when replacing the valve. Wiring
errors can cause improper and dangerous operation.
Verify proper operation after servicing.
Perform the following procedure to install the replacement VLV49A
valve.
1. Turn off power to the appliance.
2. Turn off the gas at the manual shutoff valve adjacent to the appliance.
(If the manual shutoff valve services more than one appliance, be sure
to light the other pilots before leaving.)
3. With the gas and power to the appliance turned off, disconnect the
power supply (transformer) and the thermostat lead wire at the
ignition control.
Installation