BASO G292 User Manual

Installation Instructions Issue Date September 17, 2008
G292 Series BASO® Dual Pilot Gas Valve
IMPORTANT: Only qualified personnel should
install or service BASO® Gas Products. These instructions are a guide for such personnel. Carefully follow all instructions in this document and all instructions for the appliance.
To install the G292 valve:
1. Shut off the gas at the main manual shutoff valve.
2. When installing the valve on the manifold, ensure that the gas flows through the valve body in the direction indicated by the arrow on the valve body. If the valve is installed with the gas flow in the opposite direction of the arrow, leakage can occur.
IMPORTANT: Make all gas installations in accordance with applicable local, national, and regional regulations.
!
WARNING: Risk of Explosion or Fire. Shut off the gas supply at the main manual shutoff valve before installing or servicing the G292. Failure to shut off the gas supply can result in the release of gas during installation or servicing, which can lead to an explosion or fire, and may result in severe personal injury or death.
IMPORTANT: Verify that the valve is installed only in applications where the specified maximum ambient (surface) temperature and maximum operating pressures will not exceed the limits in the
Technical Specifications section.
IMPORTANT: Do not use a wrench on any
surface other than the casting flats provided at the inlet and outlet ends of the valve body. The G292 may be damaged in the mounting process if a wrench is used on any other surface. Using a wrench incorrectly may void the warranty.
3. Mount the valve to the pipework. The G292 valve may be mounted in any convenient position. Use an approved pipe joint sealing compound on the male threads before assembly. Remove excess compound after mounting the valve to the pipework. Threads of the pipe and nipples must be smooth and free of tears and burrs. Steam clean all piping to remove foreign substances such as cutting oil or thread chips. A sediment trap must be installed in accordance with the National Fuel Gas Code (ANSI Z223.1).
4. Attach a thermocouple securely to each pilot burner, and screw the terminal end to each BASO® power unit terminal on the valve. Make sure these connections are clean. Tighten the thermocouple lead nut finger tight, plus a maximum of 1/8 turn. Do not overtighten.
5. Pilot gas connections.
a. Internal Pilot Gas Valve Models receive pilot
gas internally from the valve body.
Note: Pilot gas flow comes out of either gas valve top housing portx.
On internal pilot gas valve models, plumb the pilot burner fitting to either of the pilot gas ports on the valve. Plug the unused pilot gas port on the gas valve. See Figure 1.
© 2008 BASO Gas Products 1 Part No. BASO-INS-G292, Rev.A www.baso.com
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WARNING: Risk of Explosion or Fire. Never connect an external gas line to an internal pilot gas model. Pilot gas would flow freely in one port and out the other, which could lead to an explosion or fire and may result in severe personal injury or death.
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WARNING: Risk of Explosion or Fire. Verify that there are no gas leaks by testing with appropriate equipment. Never use a match or lighter to test for the presence of gas. Failure to test properly can lead to an explosion or fire, and may result in severe personal injury or death.
6. Check for leakage: a. Close the main upstream manual shutoff valve
and open the pressure connection between the manual shutoff valve and the G292 valve.
b. Connect air tubing with a maximum pressure
of 1-1/2 times the valve’s maximum operating pressure (as indicated on the valve) to the opened pressure connection.
c. Paint all valve body connections with a rich
soap and water solution. If bubbles occur, this is an indication of a leak.
To stop a leak, tighten joints and connections. Replace the part if the leak cannot be stopped.
If bubbles do not occur, remove the air tubing and close the pressure connection.
Shutoff
Valve
76.2 mm (3 in.) Sediment Trap
X
locations for ot her controls.
Reset Buttons
X
indicates possible
Figure 1: Typical Installation for Internal Pilot Gas Flow
Setup and Adjustments
Checkout
!
WARNING: Risk of Explosion or Fire. Follow this or an equivalent checkout procedure after installation. Before leaving the installation, verify that the gas valve functions properly and the system has no gas leaks. Gas leaks can lead to an explosion or fire, and may result in severe personal injury or death.
Make sure all components are functioning properly by performing the following test:
1. Open all upstream shutoff valves and test all joints and connections of leaks with a soap solution.
2. Close the main upstream shutoff valve and wait at least five minutes for unburned gas to escape from the appliance, and then reopen the shutoff valve.
Thermocouple Leads
X
Pilot Burner Gas Lines
3. Push the reset button of the inlet (first) BASO power unit and light the pilot burner (see Figure 1). Continue to hold the reset button for 30 to 45 seconds or until the pilot remains burning when the reset button is released.
4. Push the reset button of the outlet (second) BASO power unit and light the pilot burner (see Figure 1). Continue to hold the reset button for 30 to 45 seconds or until the pilot remains burning when the reset button is released.
Note: If control thermostats for each burner are not used, gas will flow to both main burners, igniting each.
5. Set the thermostat for the first main burner to the highest setting. It should ignite from the pilot burner.
2 G292 Series BASO Dual Pilot Gas Valve Installation Instructions
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