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The Carefree boiler combines the convenience of electric heat with the comfort that only a hydronic system can provide. The Carefree comes equipped with brand name quality controls, and all electric components are UL listed. The one-piece cast iron construction provides dependable, long-lasting heat, and the heat exchanger is covered by Burnham’s Lifetime True-Blue Limited Warranty. A large 3.5 gallon water capacity allows maximum heat extraction, and the heating elements are designed for years of trouble-free operation. The simple, solid construction of this electric boiler makes it truly "carefree". Conveniently available in three capacities ranging from 41,000 through 68,000 BTU/HR, the Carefree boiler can meet your electric hydronic heating needs. SPECIFICATIONS H Burnham LJ Hydronics CAREFREE RATINGS . Boiler Model DOE Heating Capacity MBH AMPS (240V) Water Flow Rate — GPM Based on 20°F Temp. Rise and Boiler Capacity at: Approx. Shipping Weignt Lbs.. AFUE% 240V 220V 208V 240V 220V 208V E-412 41 35 31 50 4.1 3.5 3.1 133 100 E-416 55 46 41 70 5.5 4.6 4.2 133 100 E-420 68 58 52 85 6.8 5.8 5.2 133 100 Note: DOE Heating Capacity ratings are shown. Where the boiler and piping are in the heated space, the boiler may be selected on the basis of the Heating Capacity. Where a piping loss and/or pick up loss will exist, add this loss to the building loss to determine the total heating requirement. Where a piping loss only will exist but cannot be calculated, multiply the calculated building loss by a 1.15 factor to determine the total heating requirement. Design Working Pressure: 30 PSIG, Water Only. Recommended Power Supply to Boiler Boiler Model KW AMPS Volts Phase No./Size of Elements Minimum* Wire Size Maximum Fuse Size (AMPS) Approx. Weight Full Lbs. Water Content Gals. E-412 12 50 240/1 4-3KW 6 60 155 3-1/2 E-416 16 70 240/1 2-3KW, 2-5KW 4 80 155 3-1/2 E-420 20 85 240/1 4-5KW 2 90 155 3-1/2 * For runs in excess of 50 ft. consult local and national electrical codes. Clearance Requirements For Service Accessability (in inches) Approved for Closet and Alcove Installation with Minimum Clearance to Combustible Material* (in inches) Left Side 18 18 Right Side 6 0 Top Bottom 9 9 9 15 Rear 0 0 Front For Door 2” Closet Removal 18” Alcove * Closet installation requires two ventilation openings, one located at top and one at bottom, each opening to have 25 sq. in. net free area. Standard Equipment Deluxe blue jacket Wall mounting brackets Heating element sequencers Neon indicator lights Circulator delay control Circulator switch control circuit fuse Transformer - 120/24V-40VA Field wiring terminal block Thermostat terminal block Dual high limit control Pressure temperature gauge Safety relief valve Boiler drain valve Internal wiring Heating element relays Dimensions (in inches) □ Burnham Form No. PL81401361000-5/04-5Ms Printed in the U.S.A. © 2004 U.S. Boiler Company, Inc. - Lancaster, PA Phone: 717-397-4701 www.burnham.com...