Burnham E4 User Manual

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8143606R7-2/06 Price - $3.00

IMPORTANT: READ THESE INSTRUCTIONS CAREFULLY BEFORE PROCEEDING WITH THE
INSTALLATION OF BOILER. POST INSTRUCTIONS NEAR BOILER FOR REFERENCE BY

OWNER AND SERVICE TECHNICIAN. MAINTAIN INSTRUCTIONS IN LEGIBLE CONDITION.

NOTE: — The equipment shall be installed in accordance with those installation regulations in force in the area where the
installation is to be made. These shall be carefully followed in all cases. Authorities having jurisdiction shall be consulted before
installations are made.

All wiring shall be made in accordance with the National Electrical Code and/or local regulations.

SECTION I - INSTALLATION INSTRUCTIONS ...........................................................Page 3

SECTION II - OPERATING AND SERVICE INSTRUCTIONS .....................................Page 5

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Figure 1: Dimensions and Specifi cations

2

SECTION I: INSTALLATION INSTRUCTIONS

A. Inspect Shipment carefully for any signs of damage.

1. All equipment is carefully manufactured, inspected
and packed. Our responsibility ceases upon delivery
of Boiler to the carrier in good condition.

2. Any claims for damage or shortage in shipment
must be fi led immediately against the carrier by
the consignee. No claims for variances from,
or shortage in orders, will be allowed by Boiler
Manufacturer, unless presented within sixty (60)
days after receipt of goods.

B. Read These Instructions Carefully before proceeding

with installation and operation of the “CARE-FREE”
Electric Boiler.

1. The “CARE-FREE” is U.L. listed, constructed
and tested in accordance with the requirements of
the ASME Boiler and Pressure Vessel Code and
designed for use in any conventional hydronic
system except steam and gravity hot water.

2. The “CARE-FREE” Electric Boilers are shipped
completely assembled less circulator. All electrical
controls are mounted and wired in a compartment
immediately behind the Front Door of the Boiler
Jacket, see Figure 1.

C. Locate Boiler in or adjacent to the space to be heated

with consideration given to the location of the electrical
service. Although its compactness will allow the
“CARE-FREE” Electric Boiler to be mounted almost
anywhere – closet, alcove, or other small area, see
CLEARANCE REQUIREMENTS on Page 2.

D. Mount Boiler to wall using four 3/8" lag screws

or anchor bolts (depending upon wall construction)

passing through the holes provided in the wall
mounting channels. Figure 1 shows bolt center
dimensions. It is recommended that 1/2" plywood
be used as a base for mounting the boiler so that the
structure is adequate to carry the weight imposed upon
it – see Figure 1 for weight of boiler when full of water.
Boiler should be level for proper operation of BUILT­IN AIR SEPARATOR.

E. Connect Supply and Return Piping to Heating

System using standard recognized practices. See Figure

2. Install an appropriate size expansion tank in system
as per Figure 2. Do not connect into the 3/4" tee on top
of the boiler; instead install an automatic fl oat type air
vent at this point. Water content of the boiler is given
in Figure 1.

The relief valve outlet should be piped full size to a

drain or near the fl oor.

The heating elements are NOT compatible with

ethylene glycol based antifreeze.

If a low water cut-off is required, it must be mounted in

the system piping above the boiler.

The minimum safe water level of a hot water boiler is

just above the highest water containing cavity of the
boiler; that is, a hot water boiler must be full of water to
operate safely.

If it is required to perform a long term pressure test of

the hydronic system, the boiler should fi rst e isolated to
avoid a pressure test including the boiler, ALL trapped
air must fi rst be removed from the boiler.

A loss of pressure during such a test, with no visible

water leakage, is an indication that the boiler contained
trapped air.

Figure 2: Recommended Boiler Piping

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