Burnham Carefree DOE User manual

EFFI
C
I
ENT & EC
O
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MI
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ELECTRIC HOT WATER
HOME HEATING
CAREFREE TM
Burnham’s CarefreeTM line of boilers offers 100% fuel efficient electric heat in a smartly styled wall-hung
unit. The Carefree boiler combines the convenience of electric heat with the comfort that only a hydronic
systemcanprovide.
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 maxi-
mum 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.

FormNo.PL81401361000-5/04-5Ms
Printed in the U.S.A.
© 2004 U.S. Boiler Company, Inc. - Lancaster, PA
Phone: [phone]
www.burnham.com
SPECIFICATIONS
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.
Dimensions (in inches)
Standard Equipment
Deluxe blue jacket Field wiring terminal block
Wall mounting brackets Thermostat terminal block
Heating element sequencers Dual high limit control
Neon indicator lights Pressure temperature gauge
Circulator delay control Safety relief valve
Circulator switch control Boiler drain valve
circuit fuse Internal wiring
Transformer-120/24V-40VA Heating element relays
* For runs in excess of 50 ft. consult local and national electrical codes.
CAREFREE RATINGS
* Closet installation requires two ventilation openings, one located at top and one at
bottom, each opening to have 25 sq. in. net free area.
Recommended Power Supply to Boiler
ClearanceRequirements
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
E-416
E-420
41
55
68
35
46
58
31
41
52
50
70
85
4.1
5.5
6.8
3.5
4.6
5.8
3.1
4.2
5.2
133
133
133
100
100
100
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
E-416
E-420
12
16
20
50
70
85
240/1
240/1
240/1
4-3KW
2-3KW, 2-5KW
4-5KW
6
4
2
60
80
90
155
155
155
3-1/2
3-1/2
3-1/2
For Service
Accessability
(in inches)
Approved for Closet and Alcove Installation
with Minimum Clearance to Combustible Material*
(in inches)
Left Side
Right Side
Top
Bottom
Rear
Front
18
6
9
9
0
For Door
Removal
18
0
9
15
0
2" Closet
18" Alcove