A.O. Smith COF-199 manual Table of Contents, Approvals

TABLE OF CONTENTS

FEATURES AND SPECIFICATIONS	2	Water Temperature Control	11
APPROVALS	3	High Limit Switch E.C.O	11-12
IDENTIFICATION		Burner Certificate (Combustion Test)	12
Oil and Burner Nameplate Decal	3	Self-Cleaning Eliminator	12
Oil Burner Specifications	4	Draining	12
SAFETY	4	MAINTENANCE
INSTALLATION		General	12
Required Ability	4	Relief Valves	12
General	4	Flushing	13
Uncrating	4	Sediment Removal	13
Leveling	4	Lime Scale Removal	13-14
Location	4-5	Circulating Pump	14
Clearances	5	Soot Removal	14
Combustion and Ventilation Air	5	Vent System	14
Chemical Vapor Corrosion	5-6	INSTALLATION DIAGRAMS	15-19
Flue Gas Venting	6	CHECKLIST AND SERVICE INFORMATION
Vent Connector and Draft Regulator	6	Electrical Wiring Replacement	20
Water Piping	7	Not Enough or No Hot Water	20-21
Closed Water System	7	Burner Starts - Won't Operate	21
Drain Valve and Access Panels	7	Water Too Hot	21
Fuel Systems	7-8	Water Heater Makes Sounds	21
Burner Installation	8-9	Water Leakage is Suspected	21
Fuel Pump	9	Burner Won't Start	21
Wiring Diagrams	10	Burner Starts But Fails To Run	21
OPERATION		Normal Start, But Locks Out On Safety	22
General	11	Safety Primary Control	22
Filling	11	COMBUSTION TEST SPECIFICATIONS	22
Start Up	11	TROUBLESHOOTING	23
		WARRANTY	24

APPROVALS

The burner and controls are listed by Underwriters' Laboratories Inc. Accordingly, the burner bears one of the UL labels indicating periodic inspection of the production of this equipment.

All ASME tanks are built to the standards of Section IV of the American Society of Mechanical Engineers code and are stamped with their symbol. The National Board of Boiler and Pressure Vessel Inspectors papers are furnished upon request. The NB number and HLW symbol (to the right) are on the plate located just below cleanout on tank. (May be viewed by removing cleanout cover on jacket).

					IDENTIFICATION
							OILBURNER NAMEPLATE DECAL
The heater and burner rating plates or labels provide valuable information.
When ordering parts or inquiring about a unit, be sure to include all						The oil burner's nameplate decal (see page 2 for the approximate location
information from the plates. See the picture on page 2 for approximate
						on the burner) contains a burner code 940 or 941 which should exactly match
location of the heater rating plate.
						the model input appearing under the model number of the heater's rating plate.
The heater rating plate model number, see fig. 2, includes a series						If these codes do not match, the oil burner may not be the correct model for
number which identifies the construction of the heater.
						the heater model purchased, Contact your A.O. Smith dealer for further
						information and replacement, if required.
COF 455 940		CO5MOO6721		XXXXXXXXXX
455,000	3.25	XXX.X	XX	XXX
120	10	60

A TYPICAL HEATER RATING PLATE	A TYPICAL OIL BURNER NAMEPLATE DECAL
FIGURE 2	FIGURE 3
	3