Burnham Carefree DOE Manual de usuario

EFFI

ENT & EC

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.

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

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

4.1

5.5

6.8

3.5

4.6

5.8

3.1

4.2

5.2

133

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

240/1

4-3KW

2-3KW, 2-5KW

4-5KW

155

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

For Door

Removal

2" Closet

18" Alcove

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