Burnham 5B Specification Sheet

SERIES 5B ATMOSPHERIC:

GAS FIRED BOILER

SUGGESTED SPECIFICATIONS

Note: To use as a project specification:
A. Insert, in the blank spaces provided, the applicable model number, capacity, fuel, and electrical data.
B. Delete the item in parentheses or marked “*” which are not applicable to the project requirements.
C. Insert, where applicable, optional non-standard features desired.

1. GENERAL SPECIFICATION

Contractor shall furnish and install, where indicated on the drawings, ______ (quantity) Model 5_____ B,
_______ (steam or water) boiler(s) having an I=B=R approved gross output of ______ MBH and a net rating
of _______ MBH per boiler with an input of _______ MBH when fired with (natural or LP gas). Boiler(s)
shall be constructed of cast iron sections manufactured in accordance with ASME requirements for low
pressure boilers and each section shall be permanently marked with the ASME symbol and the maximum
allowable working pressure.

2. BOILER EQUIPMENT SPECIFICATION

2.1 Boiler sections shall have pinlike projections on each center section, evenly spaced on the vertical flue

surfaces to extract the greatest possible quantity of heat from the hot flue gases.

2.2 Boiler shall be equipped with stainless steel burners with air shutters which feature smooth ignition,
positive flame extinction and high combustion efficiency.

2.3 Boiler sections shall be surface ground to ensure smooth positive mating surfaces.

2.4 Boiler sections shall be assembled with precision machined cast iron push nipples, pressed into a
mating machined nipple port in the section eliminating the need for any material such as gaskets, etc.
which would be subject to deterioration due to corrosion or oil based chemicals.

2.5 Boiler shall have individual clean out openings between sections covered with insulated steel flue cover
plates on front and rear of boiler.

2.6 Boiler flue canopy (s) shall be constructed of heavy gauge aluminized steel.

2.7 A horizontal to vertical drafthood(s) shall be furnished for each boiler.

2.8 The boiler jacket shall be constructed of heavy gauge steel with 1” thick insulation and have a rust
resistant baked enamel finish. The jacket shall be capable of being installed after system piping has
been connected to the boiler section assembly. Jacket will have the capability of being removed for
cleaning the boiler without disturbing the system piping.

2.9 All boiler sections shall be hy drostatically tested for 50 psi water working pressure in accordance
with ASME Code, Section IV.

2.10 Boiler shall be manufactured of flake graphite/eutectic cell/ cast iron sections which shall have been

subjected to a hydrostatic pressure test of 2-1/2 times MAWP
section shall be marked, stamped or cast with the ASME Code symbol. After section assembly, the
entire block of sections shall be hydrostatically tested at 1-1/2 times MAWP
shall be designed in accordance with the ASME Boiler and Pressure Vessel Code Section IV
requirements.

(NOTE TO SPECIFIER: The Series 5 boiler is shipped as standard with sections unassembled, however, if the
job conditions permit, we can factory assemble and water test up to 11 sections. Boiler sizes 12 thru 26 sections
will be shipped in two (2) or more assembled and tested blocks.)

at the factory before assembly and each

prior to shipment. Boiler

* 2.10 Water trim shall include a 3½” round pressure-temperature gauge with separate scales for pressure and
water temperature. In addition, an ASME approved safety relief valve shall be furnished, sized to
exceed the gross output of the boiler, BTU/Hr. and shall be factory set to relieve pressure at
(30)(50)psi.

* 2.11 Steam trim shall include a 3½” round steam pressure gauge with a siphon device. A water level gauge
glass shall be furnished with a needle drain valve in the lower connection. In addition, an ASME
approved safety valve shall be furnished with side outlet porting set to relieve pressure at 15 psi. The
safety valve shall be sized to exceed the gross output of the boiler.

(NOTE TO SPECIFIER: Tankless heaters for domestic water supply are available for the Series 5 water boilers
only. Because of the wide variety of ratings (4½ to 12 GPM) dependent on boiler size, please refer to current
Series 5 literature or trade price book for exact quantity, heater number ratings and control arrangements available.
If a tankless heater is desired, we suggest the following paragraph be added.)

2.12 The boiler shall include _________ (insert (1) 6 thru 9 section or, (2) if desired, 10 thru 26 section)
tankless heater(s) number AT-2, AT-3 or AT-4 with ________ GPM (continuous draw) 40°- 140°F rise
with 200°F boiler water temperature.

3. BOILER CONTROLS

3.1 High limit control (a) or (b) below:

(a) shall be automatic reset type suitable for 115 volt 60 Hz.
(b) shall be manual reset type suitable for 115 volt 60 Hz.

3.2 A separate operating control shall be furnished in addition to high limit control and shall be suitable for
115 volt 60 Hz.

3.3 A low water cut-off shall be furnished and sized on the basis of boiler capacity and pressures involved.
The low water cut-off shall be McDonnell & Miller No. (a) or (b) options below:
Options (a) for Water Boilers
No. 750P-MT, manual reset
No. 64, automatic reset
No. 63M, manual reset

Options (b) for Steam Boilers
No. 67BC-2, automatic reset
No. 64, automatic reset
No. 63M, manual reset
No. 47-2 feeder and cut-off combination, automatic reset, No. 47-2M (manual reset)
No. 51-2 feeder and cut-off combination, automatic reset, No. 51-2M (manual reset)
No. 150 pump control and cut-off, automatic reset, No. 150-M (manual reset)

4. GAS TRAINS AND IGNITION SYSTEMS

* 4.1 (insert for 6 thru 14 section boilers) The boiler gas train shall be AGA certified and shall consist of
(select option a, b, c, d, e, f, or g)

* 4.1 (insert for 15 thru 26 section boilers) The boiler shall be furnished with two gas trains. Each gas

train shall be AGA certified and shall consist of (select option a, b, c, d, e, f, or g)

Option (a)

(Standard on 5006 thru 5009 with EI ignition, N/A on other sizes)

a 24 volt redundant combination gas valve with 100% shut-off and 1/8” NPT pressure tapping.

Option (b)

(Standard on 5010 thru 5026 with EI ignition)

a manual shut-off valve, pilot gas filter, pilot shut-off cock, gas pressure regulator, and two diaphragm
gas valves.

Option (c)

a manual shut-off valve, pilot gas filter, pilot shut-off cock, gas pressure regulator, solenoid gas valve,

and motorized gas valve with low-high-off operation.

Option (d)

a manual shut-off valve, pilot gas filter, pilot shut-off cock, gas pressure regulator, solenoid gas valve,

and motorized gas valve with low-high-low operation.

Option (e)

a manual shut-off valve, pilot gas filter, pilot shut-off cock, solenoid gas valve, and a two stage