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Installation Instructions H17

Issue Date August 20, 2008

Part No. BASO-INS-H17, Rev. A www.baso.com

H17 Series BASO® Automatic Pilot Valve

Application

The H17 Series pilot valves provide complete shutoff

in the event that the flame heating the thermocouple is

extinguished. Applications include room heaters,

infrared heaters, salamanders, and refrigerators.

H17 models are also available with a higher ambient

temperature, up to a maximum of 300°F (149°C), for

use on commercial ovens, broilers, and other

applications.

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.

IMPORTANT: Make all gas installations 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 above caution.

WARNING: Risk of Explosion or Fire.

Shut off the gas supply at the main manual shutoff

valve before installing or servicing the H17. 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 do not exceed the limits in the

Technical Specifications section.

To install the H17 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: 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 H17 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 H17 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 should also be installed in accordance with

the National Fuel Gas Code (ANSI Z223.1). See

Figure 1.

5. Attach the thermocouple securely to the pilot

burner, and screw the terminal end to the

BASO® power unit terminal on the valve. Make

sure this connection is clean. Tighten the

thermocouple lead nut finger tight plus a

maximum of 1/8 turn. Do not overtighten.

Summary of content (4 pages)

PAGE 1
Installation Instructions H17 Issue Date August 20, 2008 H17 Series BASO® Automatic Pilot Valve Application The H17 Series pilot valves provide complete shutoff in the event that the flame heating the thermocouple is extinguished. Applications include room heaters, infrared heaters, salamanders, and refrigerators. H17 models are also available with a higher ambient temperature, up to a maximum of 300°F (149°C), for use on commercial ovens, broilers, and other applications.
PAGE 2
6. Attach the pilot gas line to the pilot burner fitting and to the pilot gas outlet of the H17 valve. In applications that light the main burner directly, the pilot tap should be fit with a suitable plug. 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 H17 valve. ! b.
PAGE 3
Setup and Adjustments Checkout Procedure 8. Check the millivoltage output of the thermocouple and milliampere dropout range at the BASO power unit terminal to see that they meet the values in Table 1 and Table 2. Step-by-step procedures for these checks are included with the Y99AB-4 BASO Test Kit Application Note. 9. Observe at least three complete operating cycles to make sure that all components are functioning properly. ! WARNING: Risk of Explosion or Fire.
PAGE 4
Approximately Repairs and Replacements 1/2 in. (12.7 mm) fig2 ! Figure 2: Flame Position WARNING: Risk of Explosion or Fire. Shut off the gas supply at the main manual shutoff valve before installing or servicing the H17. 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. Field repairs must not be made to the H17 valve.