Lennox eNeRGy Series Installation, Operating And Maintenance page 54

GAS BURNER
Starting for the first time
The PCH heater unit is supplied with settings entered and tested for the gas specified on the nameplate. Before turning on the
PCH unit, check the following:
GAS BURNER
• Make sure the gas in the mains corresponds to that for which the PCH is controlled;
• Check, with the pressure intake "IN" on the gas valve, that the pressure entering the valve corresponds to that required
for the type of gas being used;
• Check that electrical connections indicated in electrical diagrams attached to the unit;
• Check that efficient earthing connections have been completed, carried out as specified by current safety regulations;
• Provide power to the heater with the general switch on the machine and insert the power plug in the inside of the
compartment;
To turn on the heater, follow the instructions below:
• Check that RDY appears on the display. If OFF appears,, use the command, under FUN, to turn the machine to ON;
• Check the LCD display to verify that the Tin value is greater than the Von value. When ON appears on the LCD display, the
heater starts the ignition cycle.
NOTE: Frequently, when turned on for the first time, the pilot burner cannot ignite because there is air in the gas hose. This
will block the equipment.
You will need to unblock the equipment and repeat the operation until it ignites.
Analysis of combustion
Check that the heater is at maximum or minimum power.
Use the LCD display to reach the REG menu, then use the Hi and Lo commands to force operation at maximum or minimum capacity.
• Check again that the input pressure in the valve corresponds to that required; adjust if necessary.
• Perform the combustion analysis to verify that the level of CO2 corresponds to figures in the tables.
• If the measured value is different, turn the adjustment screw on the venturi. Unscrewing the screw will raise the level of CO2, screwing
it down will lower the level.
• Place the heater on minimum capacity, and verify that the level of CO2 corresponds to figures in the tables. If the measured value
is different, repeat the procedure.
eNeRGy-IOM-2020.12-EN
• •
54