Burnham 8H, 8HE Specification Sheet

SERIES 8H ATMOSPHERIC:

GAS FIRED HOT WATER 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 8_____H gas fired
hot 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 The boiler(s) shall be knocked down with the sections and base factory assembled as one unit. The knocked
down boiler shall be shipped in a fully containerized shipping crate, capable of being stacked two high.

*2.2 The boiler(s) shall be factory packaged with jacket, manifold, burner, and controls mounted and wired. The
packaged boiler shall be shipped on a wooden skid with reinforced cardboard to protect from damage.

2.3 Boiler sections shall have pin-like projections on each center section, evenly spaced on the vertical flue
surfaces to extract the maximum heat from the hot flue gases.

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

2.5 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 gasket material which would be subject to
deterioration due to corrosion or oil based chemicals.

2.6 All boiler sections shall be individually hydrostatically tested for 50 psi water working pressure in
accordance with ASME Code Section IV.

2.7 Boiler shall have top access individual cleanout openings between sections.

2.8 Boilers shall be equipped with aluminized steel burners with air shutters which feature smooth ignition and
positive flame extinction.

2.9 Boiler flue canopy shall be constructed of heavy gauge aluminized steel and shall be concealed under an
insulated steel boiler jacket.

2.10 A drafthood shall be furnished for each boiler.
*2.11 Boiler shall be equipped with an automatic flue vent damper. (standard on size 805H)

2.12 The boiler jacket shall be deluxe extended type with 3” 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.

2.13 Boiler trim shall include a 3-1/2” round pressure-temperature gauge with separated scales for pressure and
water temperature. In addition, an ASME approved water relief valve shall be furnished sized to exceed the
boiler gross output capacity and shall be factory set to relieve pressure at (30) (50) psi.

2.14 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 at the factory before assembly and
each 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 prior to
shipment. Boiler shall be designed in accordance with the ASME Boiler and Pressure Vessel
Code Section IV requirements.

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 by the contractor in addition to the high limit control and
shall be automatic reset type 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.
Provide the following:

(a) McDonnell & Miller PS851 Probe Low Water Cut-off (Automatic Reset)
(b) McDonnell & Miller No. 750P-MT Probe Low Water Cut-off (Manual Reset),
(c) McDonnell & Miller No. 64 (Automatic Reset)
(d) McDonnell & Miller No. 63M (Manual Reset)

4. GAS TRAINS & IGNITION SYSTEMS

4.1 Each boiler shall be furnished with an A.G.A. certified gas train.

4.2 The gas control train of each boiler shall be factory assembled and consist of (select option a, b, or c):

Option (a)

(This is standard equipment on 806-807, optional on other sizes with 4.3.c and 4.3.d ignition system)

(Thermocouple controlled gas train when used with 4.3.a and 4.3.c ignition system)

(Electronically controlled gas train when used with 4.3.d ignition system)

a combination 24 volt gas valve with 100% shut-off, a 24 volt solenoid gas valve, and a 1/8” N.P.T.
pressure tapping.

Option (b)

(This is standard equipment on 805, 808-810, optional on 806-807)

(Electronically controlled, EI, gas train - see 4.3.b)

a combination 24 volt redundant gas valve with 100% shut-off and a 1/8’ N.P.T. pressure tapping.

Option (c)

(IRI approved gas train)

two manual shut-off valves, pilot gas filter, pilot shut-off valve, pilot gas pressure regulator, pilot solenoid
gas valve, main gas pressure regulator, dual main motorized gas valves, normally open vent valve, and main high
and low gas pressure switches.
(NOTE TO SPECIFIER: IRI gas trains are factory assembled and shipped separately to be mounted on
the side of the boiler. This will change the minimum side clearance from 1” to 24”.)

4.3 Each boiler ignition system shall be (select option a, b, c, d, e or f ):

Option (a)

(This is standard on 806-807)

(This ignition system must be used only with gas control train, Option a.)

gas shut-off.

a manually lighted continuous burning pilot, supervised by a thermocouple, and shall provide for 100%

Option (b)