Bryan Boilers EB-75-S150-FDG manual Bryan Flexible Tube, Water cooled furnace, Large steam drum

Steam

Boiler

Water

Boiler

Efficient “Flexible Water Tube” design assures easy maintenance and low cost operation

All Bryan EB Series boilers offer these operating and performance features

The Bryan Flexible Tube

Bryan’s exclusive “Flexible Tube” design eliminates the possibility of damage from so-called “thermal shock.” Tubes are easily removable and replaceable, without welding or rolling, eliminating long, expensive downtime

should repairs ever be required.

Water cooled furnace

The configuration of the water tubes provides a water cooled combustion chamber. A high percentage of the heating surface is exposed to direct ra- diant heat, increasing water velocities and heat

transfer.

Large steam drum

The steam drum has gen- erous water volume and steam release area. This

design, along with effective drum internal functions, results in a stable water level and produces extremely dry steam at all load conditions.

Accessibility of furnace and tube area

One hinged inner panel provides easy and complete access to furnace and boiler tube area, as well as to burner head. Other tube side panels are also remov- able, and all panels are heavily insulated and sealed to boiler frame. All access is from only one side.

Compact design, minimum floor space

With our compact water tube design, the overall size of the unit is less than most other types of boilers. Needing only 32" for tube removal, and on only one side of the boiler, the EB Series boiler occupies very little space in the boiler room. This can result in con- siderable savings in building costs. Pressurized firing permits minimum sized breaching and vent.

Multi-pass flue gas travel

High velocity four-pass flue gas travel is obtained by a unique baffling system. This contributes to maximum fire side heat transfer and overall boiler efficiency.

Thermal blend water return

Bryan’s unique “thermal blend” return blends cold or cooler return water with warmer boiler water blending it to design operating temperatures. An injector tube directs the “mixed” water flow through the downcomer to the lower header and heating surfaces at a temperature above possible condensing conditions. This reduces the possibility of “cold spots” and damage from corrosive condensation.

Positive internal circulation

Each pass of the Bryan water tube slopes up- ward. This configuration, along with the large volume down-comer water legs, provides the extremely rapid natural thermal internal circu- lation, promoting both high efficiency of heat transfer and uniform temperature throughout the boiler. Eliminating stress damage caused by unequal temperature dis- tribution is especially important

for heating systems, particularly where intermittent or continuous low temperature water returns may be encountered.

Bryan EB Series Boilers Standard and Optional Equipment

STANDARD EQUIPMENT FURNISHED

When ordering, please specify:

1. Boiler size

Water Boiler

Combination thermometer and alti- tude gauge, ASME Code rated boiler relief valve, water temperature control (240°F max std.), high limit control, probe LWCO.

Steam Boiler

Combination low water cutoff and pump control, auxiliary low water cut- off, high limit pressure control, ASME- rated safety valve, water glass set.

Straight gas fired unit

Electronic combustion safety control, automatic operating gas valve, safety gas valve, pilot solenoid valve, pilot ignition assembly, main manual gas shut-off valve, pilot cock, pilot and main gas pressure regulators, air safety switch, control panel, all controls installed and wired.

Straight oil fired unit

Electronic combustion safety control, oil valve, oil ignition transformer, two-stage fuel unit — spark ignition (EB75 & 100)/gas pilot (EB 125-240), oil nozzle assembly, control panel, all controls installed and wired.

Combination gas-oil unit

Electronic combustion safety control, automatic motorized gas valve, safety gas valve, pilot solenoid valve, pilot ignition assembly, main manual gas shut-off valve, pilot cock, pilot and main gas pressure regulators, air safety switch, manual fuel selector switch, oil valve, gas pilot, two- stage fuel unit, oil nozzle assembly, control panel, all controls installed and wired.

OPTIONAL EQUIPMENT, EXTRA COST

1.Manual reset high limit control

2.Manual reset low water cutoff

3.Auxiliary low water cutoff (standard on steam boilers)

4.Combination low water cutoff and feeder

5.Alarm bells or horns

6.CSD-1, FM, GE-GAP or other insurance approved control systems

7.Indicating lights, as desired

8.Lead-lag systems for two or more boilers with or without outdoor reset control

9.Draft control system

2.	Supply and return tempera-
	tures required
3.	Boiler relief valve setting
4.	Type of fuel: natural, LP, or
	other gas and/or No. 2 oil
5.	If gas, type, BTU content,
	specific gravity and pressure
	available
6.	Electric power voltage, phase
	and frequency
7.	Optional extra equipment or
	construction
8.	Special approvals required
	(UL, CSD-1, FM, or GE-GAP)
9.	Altitude