Справочник Пользователя для Burnham Carefree DOE
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
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
Clearance Requirements
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