Assessments - 3, GPA: 4.3
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. • Prepare the fuel unit for air venting • To vent air from the oil supply line, attach a clear hose to the pump air bleed valve (fi gure 9) on the fuel unit. Provide a container to catch the oil. Loosen the pump air bleed valve. • Vent the air as described in the next section under Start the burner. Explosion and Fire Hazard Failure to follow these instructions could lead to equipment malfunction and result in heavy smoke emission, soot-up, hot gas puff-back, fi re and asphyxiation hazards. • Do not attempt to start the burner when excess oil has accumulated in the appliance, the appliance is full of vapor, or when the combustion chamber is very hot. • Do not attempt to re-establish flame with the burner running if the flame becomes extinguished during startup, venting, or adjustment. • Vapor-Filled Appliance: Allow the unit to cool off and all vapors to dissipate before attempting another start. • Oil-Flooded Appliance: Shut off the electrical power and the oil supply to the burner and then clear all accumulated oil before continuing. • If the condition still appears unsafe, contact the Fire Department. Carefully follow their directions. • Keep a fire extinguisher nearby and ready for use. • Starting the burner and venting air Priming the pump Hot Gas Puff-back and Heavy Smoke Hazard Failure to bleed the pump properly could result in unstable combustion, hot gas puff-back and heavy smoke. • Do not allow oil to intermittently spray into a hot combustion chamber while bleeding. • Install a gauge in the nozzle discharge port tubing or fully open the pump bleed valve to prevent oil spray from accumulating in the combustion chamber when venting air from the fuel pump. • Ensure that all bubbles and froth are purged from the oil supply system before tightening the pump air bleed valve. • Initiate a call for heat • While the ignition is on, press and release the reset button on the R7184 control (hold 1/2 second or less). If the control has not locked out since it’s most recent complete heat cycle, the lockout time will be extended to 4 minutes (45 seconds in earlier units), and the ignition will remain on the entire heat cycle. • Bleed the pump until all froth and bubbles are purged. If prime is not established within the extended lockout time, 6104 BCF5 R07 the control will lock out. Press the reset button to reset the control and return to the functions listed in the previous step. • Repeat the previous steps if needed, until the pump is fully primed and the oil is free of bubbles. Then terminate the call for heat, and the control will resume normal operation. Disable function • Any time the motor is running, press and hold the reset button to disable the burner. The burner will remain off as long as the button is held and will return to standby when released. CAD cell resistance check • While the burner is firing, and after the ignition has been turned off, press and release the reset button (hold 1/2 second or less) to check the cad cell resistance. The LED will flash 1 to 4 times, depending on the cad cell resistance (refer to the table below). Number of LED Cad Cell Resistance (ohms) flashes 1 Strong (0 to 400) 2 Normal (400 to 800) 3 Weak (800 to 1600) 4 Poor (1600 or higher)* * Lockout is likely to occur. Step 1: Adjust the air shutter/band until a trace of smoke is achieved. Step 2: At the trace of smoke level, measure the CO2 (or O2) . This is the vital reference point for further adjustments. Example: 13.5% CO2 (2.6% O2) Step 3: Increase the air to reduce the CO2 by 1.5 to 2 percentage points. (O2 will be increased by approximately 2.0 to 2.7 percentage points.) Example: Reduce CO2 from 13.5% to 11.5% (2.6% to 5.3% O2). Step 4: Recheck smoke level. It should be Zero. • This procedure provides a margin of reserve air to accommodate variable conditions. • If the draft level has changed, recheck the smoke and CO2 (or O2) levels and readjust the burner, if necessary 4. Once combustion is set, tighten all fasteners on air band, air shutter and escutcheon plate. 5. Start and stop the burner several times to ensure satisfactory operation. Test the primary control and all other appliance safety controls to verify that they function according to the manufacturer’s specifications. 6. Check the breech draft pressure against the appliance manufacturer’s recommended setting (typically + 0.1” W.C.). If the breech pressure is higher or lower than recommended level, adjust the appliance breech damper to achieve the specified setting. Recheck the smoke and CO2 (or O2) levels. Adjust burner air if necessary. LED Indicator Status On Off Flashing (1/2 sec off - 1/2 sec on) Flashing (2 sec off - 2 sec on) Flame sensed Flame not sensed Lockout/Restricted Lockout Recycle • Set combustion using instruments 1. Allow the burner to run for approximately 5 to 10 minutes. 2. Set the stack or over-fire draft to the level specified by the appliance manufacturer. • Natural Draft Applications; typically over-fi re draft is -0.01” or...
Este manual também é adequado para os modelos :Greeley - 800 (1.09 mb)