BASO H19 User Manual

Installation Instructions Issue Date June 6, 2008

H19 Series BASO® Automatic Shutoff Pilot Gas Valve

Application

The H19 Series pilot valves provide safe lighting and complete shutoff of main burner gas and pilot gas in the event that the flame heating the thermocouple is extinguished (H19A_ applications only). Applications include heaters, commercial cooking equipment and similar applications. The H19ME valves are for use only on catalytic heater applications.

Installation

IMPORTANT: Only qualified personnel should

install or service BASO® Gas Products products. These instructions are a guide for such personnel. Carefully follow all instructions in this document and all instructions for the appliance.

IMPORTANT: Verify that the valve is installed only in applications where the specified maximum ambient (surface) temperature and maximum operating pressures do not exceed the limits in the Technical Specifications section.

To install the H19 valve:

1. Shut off power to the appliance (if applicable).

2. Shut off the gas at the main manual shutoff valve.

3. 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 installation in accordance with applicable local, national, and regional regulations.

CAUTION: Risk of Electric Shock.

Disconnect power supply before making electrical connections to avoid electric shock.

Note: In applications that do not require electrical power, disregard the previous caution.

WARNING: Risk of Explosion or Fire. Shut off the gas supply at the main manual shutoff valve before installing or servicing the H19. 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: 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 H19 may be damaged in the mounting process if a wrench is used on any other surface. Using a wrench incorrectly may void the warranty.

4. Mount the valve to the pipework. The H19 valve may be mounted in any convenient position. Use an approved pipe joint sealing compound on male threads before assembling. 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 should also be installed in accordance with the National Fuel Gas Code (Z223.1/NFPA 54). See Figure 1 and Figure 2.

5. Attach the thermocouple securely to the pilot burner (H19A_ valves only). Connect the thermocouple lead nut to the power unit terminal. Tighten the thermocouple lead nut finger tight plus an additional maximum of 1/8 turn. Do not overtighten.

6. Attach the pilot gas line to the pilot burner fitting and to the pilot gas outlet of the H19 valve (H19A_ valves only).

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.

indicate s possible

locations f or ot her controls .

Reset

Button

7. Check for leakage: a. Shut off the gas at the main manual shutoff

valve and open the pressure connection between the manual shutoff valve and the H19 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.

8. Perform the Checkout section before leaving the

installation.

Manual Shutoff

Valve

3 in. (76.2 mm)

Sediment Trap

Thermocouple

Pilot Burner

Gas Line

Figure 1: Typical H19A_ Installation

indicates po ssible

location fo r ot her contro ls.

Manual Shutoff

Valve

3 in. (76.2 mm)

Sediment Trap

Thermocouple

Connection

Figure 2: Typical H19ME Installation

H19A_ Valve

Lead

Reset

Button

H19ME

Gas Valve

Gas Supply

to Burner

2 H19 Series BASO Automatic Shutoff Pilot Gas Valve Installation Instructions

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