HP 45WDG User Manual download pdf (Page 7)

Hickory Industries, Inc.

4900 Westside Avenue, North Bergen, New Jersey 07047

Tel: [201] 223-0050 Fax: [201] 223-0950

N/45 Series Manual12/00

Page 7 of 38

Manifold Valve

Pilot Gas Connection

Thermocouple Connection

Gas Line Input Connection

Gas Control Lever

(in Pilot position)

Flow Index Button

Gas Line Output

(connection to venturi)

1.4 Conversion and Adjustment Instructions

Before converting or adjusting the machine, it is imperative that the manual gas cock be

turned to the "off" position. The electrical power to the machines should also be turned off.

When converting from one type of gas to another, the main gas orifice (or injector), the

pilot burner orifice (or injector), and the primary air adjustment must be changed according

to the table on page 9. In addition, the spring in the pressure regulator must be changed so

that it can operate at higher pressures.

1.6 Verification for use with Natural Gas

The highest flame setting ("on" position on the manifold gas valves) for each of the pipe

burners can be confirmed by using the volumetric method in conjunction with the main gas

meter. From the "pilot" position, turn the Gas Control Lever clock-wise, towards "on", until

the lever goes no further.

To carry out this verification procedure, it is necessary to obtain the heating value (BTU/ft

)

of the local gas from the local gas company.

If the measured gas volume does not correspond to the values in the following table, the

first item which should be checked is the incoming (connected) gas pressure. If the

pressure is correct, it must be verified that the proper size gas orifices are in place.

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HP 45WDG User Manual Page 7