A CO2 reading within the limits of Table 1 with no measurable CO is desirable. The maximum acceptable CO reading is about 50 PPM. If the CO reading is too high, open the burner air shutter, or air band, slightly to permit more combustion air to the flame. Recheck the CO level and adjust as required. NOTICE: On the Riello 40-F3 burner only, it will be necessary to remove the oil burner sound cover to make adjustments to the oil pump pressure and airflow. The presence of the burner sound cover ove

inch per foot from the furnace to the vent termination. Long horizontal sections of the venting system must be supported at least every five (5) feet with metal straps to prevent sagging of the vent piping. Secure all joints in the vent connector with sheet metal screws or equivalent fasteners. Vent piping must not be inserted beyond the inside wall of the chimney flue. Power (Side-Wall) Venting – Important Note Regarding c CAUTION: Crown Boiler Company will NOT assume responsibility for damage

Replace disposable air filters at least twice a year. Make certain the replacement filter is the same size as the one being replaced. The filter size is marked on the outer edge of the air filter. Install the filter with the arrow marked on the filter pointing toward the furnace. Oil Burner NOTICE: A qualified heating contractor MUST service the oil burner in this furnace at least once a year. Generally, service to the burner will involve a thorough inspection and cleaning of the burner, replace

• Improper installation, adjustment, alteration, service, or maintenance can cause a fire or explosion resulting in property damage, personal injury, or loss of life. For assistance or additional information consult a qualified installer or service agency. These instructions should be: • read prior to installing the furnace. • retained for reference by qualified service personnel. • reviewed before performing any service or maintenance. Crown Boiler Company 3633 “I” Street Philadelphia, Pennsylv

3) On highboy furnace models, remove the burner access panel. This panel will be the upper access panel on the front of the furnace. On lowboy models, remove the front access panel. On horizontal / counterflow models, the burner is mounted on the front surface of the furnace. 4) Remove the three (3), 5/16 in. brass hex machine screw nuts and the three (3) steel flat washers from the threaded studs protruding through the burner mounting plate on the furnace. Retain this hardware for later reuse.

(For counterflow / horizontal units, refer to the section of the furnace instruction manual entitled “Horizontal / Counterflow Furnace Setup”) Figure 2: Installing and Securing the Oil Burner to the Furnace Mounting Plate Only qualified service personnel shall perform installation and service. 5 8) The burner and wiring harness are equipped with mating, three (3) pole, quickconnect, electrical couplings. To make the connection between the burner wiring harness and the furnace wiring harness, ope

Base oil nozzle selection (i.e. heating capacity of the furnace) on a rate of heat loss (heating load) calculation performed for the building. Use the procedures developed in manuals provided by the Air Conditioning Contractors of America (ACCA) or the American Society of Heating, Refrigeration and Air Conditioning Engineers, Inc. (ASHRAE) to make these calculations. Refer to the Residential Load Calculation, Manual J, from the ACCA, and the ASHRAE Handbook Fundamentals volume, from ASHRAE, for

What to do if you find an oil leak: • DO NOT try to operate this appliance. • If possible, close the manual fuel shutoff valve on the oil supply tank. • Immediately call your oil supplier. Follow the oil supplier’s instructions. • If you cannot reach your oil supplier, call the fire department. A qualified installer, service agency, or the oil supplier must perform installation and service. These instructions should be: • read prior to installation. • retained for qualified service personnel • r