Bryan Boilers BE-90-Q4T3 - Manual (Page 3)

Water boiler trim and controls Steam boiler trim and controls
Drain
(2) High
limit controls
Pressure and
temperature
gauges Operating
control
Control
circuit fuse
Control circuit
on-off switch
Control
circuit
transformer
Modulating step
controller (units
over 60 KW)
ASME
relief
valve
Probe type
low water
cutoff control
Control circuit
transformer
ASME relief
valve
(2) High
limit controls Blowdown
Low water
cutoff and
pump
control
Water level
gauge glass
Pressure gauge
Modulating step
controller (units
over 60 KW)
Control
circuit fuse
Control circuit
on-off switch
Standard Equipment Supplied:
HOT WATER DESIGN BOILERS:
Model “W” (150# ASME Design)
Thermometer and pressure gauge, Operating immer-
sion aquastat, 2 high limit aquastats, Low water
cutoff, Relief valve, Metal jacket with 2
؆ fiberglass, 75
W/D Incoloy sheathed elements with pressure
connector power lugs. Control panel with Key lock,
On/Off control switch, 120 volt control transformer
(fused), Magnetic contactors with 120 volt coil,
Individual circuit fusing, Step indicating lamps, First
on/first off progressive step controller (3 thru 40
steps), National Board Inspection and UL Label.
Model “WT”
Includes items in Model “W” design, plus Indirect heat
exchanger — Max. discharge, Heat exchanger relief
valve, Expansion tank, Boiler fill and drain valves and
Boiler drain cock. (See Form 4800)
Optional Equipment Available:
Power panel door electric interlock. Preheat
switch. Flow switch. Manual reset controls.
Manual blowdown valve. Automatic
blowdown with 24 hour time clock. Alarms.
Indicating lights. Larger connection for heat
pump applications.
Other Designs Available:
1) BH – Our upgrade to the BE Series
(Form 3200)
2) WT – Indirect Hot Water Supply Heaters
(Form 4800)
3) Energy Selector Boiler – Electric plus gas,
oil or gas/oil. A boiler with multiple energy
source choice (Form 3500)
Standard Equipment Supplied:
STEAM DESIGN BOILERS:
Model “S” (15# ASME Design)
Model “Q” (150# ASME Design)
Steam pressure gauge w/gauge clock, Operating
pressure control, 2 high limit pressure controls,
Combination low water cutoff and pump control,
Auxiliary low water cutoff, Relief valve, Water glass set,
Metal jacket with 2
؆ fiberglass, 75 W/D Incoloy
sheathed elements with pressure connector power
lugs. Control panel with: Key lock, On/off control
switch, 120 volt control transformer, Magnetic
contactors with 120 volt coil, Individual circuit fusing,
Step indicating lamps, First on/ first off progressive
step controller (3 thru 40 steps), National Board
Inspection and UL Label.
Standard Design Features
Elevated legs integral with structural
frame and extended rails for positive
support of both pressure vessel and
heavy duty power panel cabinet.
Each
branch
circuit is
fused
individually
Hinged
door for
access to
vessel,
ASME and
elements
16 gauge
jacketing all
around
structural
frame; zinc
coated, rust
resistant
primer,
enamel
finished Heavy duty,
11 gauge
power
panel
cabinet Single point
connection entrance
Louvered
panel
cover for
proper
cooling air
circulation
Operating
control