Main Burner System Adjustment - Pitco SG6H Installation & Operation Manual

INSTALLATION
1.8.4.

MAIN BURNER SYSTEM ADJUSTMENT

For the main burners to operate the gas supply valve must be open and the thermostat must be
turned on. The main power switch must be on. The main burners receive gas from the main gas
supply through the thermostatically controlled valve. When the water temperature drops below
the preset temperature the gas control valve opens.
The main burners must be adjusted to deliver optimum flame. Refer to the following procedure to
adjust the main burners.
1. Ensure that the main gas valve is shut off, remove the manifold pressure tap plug and
connect an accurate pressure gauge (range of 0-16 "W.C. (39.85mbar, 3.98kPa) in 0.1"
(.25mbar, .02kPa) increments) or manometer.
2. Turn on this and all appliances connected to the gas supply line and light their main burners.
The pressure reading of the installed pressure gauge should not drop from the required
installation pressure. Any loss of pressure indicates inadequate supply line installation,
which will cause poor performance of all appliances during peak usage.
3. The installed pressure gauge should be the same, ±0.1" W.C. (.25mbar, .02kPa), as that
marked on the data plate on the inside door of the appliance. If the pressure is correct, go to
step 6, if it is not, adjust the pressure as outlined in step 4.
4. To adjust the pressure, remove the regulator adjustment screw cap and, with a flat head
screwdriver, adjust the regulator screw until the proper burner pressure is reached. Turning
the screw clockwise will increase the burner pressure. Turning the screw counterclockwise
will decrease the burner pressure.
5. When the pressure is correct, replace the regulator adjustment screw cover.
6. Turn off the ALL appliances, shut the main gas valve to your Pitco appliance and remove the
pressure gauge. Apply pipe joint compound to the manifold pressure tap plug and reinstall it.
10
L20-332, rev. 1 (05/11)