| SBE SERIES ELECTROFLO
HEATING SYSTEM STANDARD EOUIPMENT (All Models)
General:
Either of two horizontal blower
arrangements are available as standard: HR-1, horizontal discharge and HR-2, down
discharge, as illustrated below.
Cabinet:
Bolted construction of aluminized steel; SBE-1 12 and
SBE115 of 16 gauge, all other models with 14 gauge. Access panels are provided to allow
easy access to motors, drives and filters (if ordered). Outside surface is primed with
zinc chromate and finished with a coat of enamel.
Electric Controls:
Electric Heater controls - a standard SBEH, SBE9 or SBEV
control system as described on page 2 of this bulletin.
Air flow switch - built-in, pressure differential type
provides the best electric heater protection against air failure caused by fan belt or
other blower malfunctions.
"No Glo" safeguard system - continues blower
operation for a short timed period after electric heater shuts down. This control sequence
extracts residual heat from the element which prolongs electric heater life.
115 volt control transformer - furnished on all Electroflo
units with line voltage other than 115 volts.
NEMA 1 main control box - with terminals, relays,
interlocks and starter for proper system control.
Terminal blocks - either single or multiple line terminal
blocks are furnished on all Electroflo heating units dependent upon load requirements.
Remote control station - complete with system switches and
indicating lights.
Blower:
Centrifugal forward curved, double width, double inlet,
class 1 fan(s) with solid turned ground shaft and self-aligning prelubricated ball
bearings. All blower wheels are statically and dynamically balanced.
Blower housings, bearings and adjustable motor base are
mounted on a reinforced frame to insure rigidity and quiet operation. Adjustable drives
are standard through 10 HP; fixed drives are standard with 15 HP and larger motors. V-belt
drives are sized for 135% of motor horsepower.
Fan motors and drives are mounted within the blower
cabinet. This affords motor protection and eliminates the operational hazard of V-belt
drives external to the unit.
Motor:
T-frame, open dripproof, 1800 RPM prelubricated ball
bearing type for all standard voltages.
Heater:
TYPICAL ELECTROFLO HEATER
UL Listed heating section with open type electric element,
NEMA 1 terminal box, circuit fuses, step controller transformer with primary fusing, auto
reset thermal cutout, heat limiter type secondary safety protection, de-energizing
contactors and connecting terminal block(s) for wiring power supply. All fusing per NEC
and UL. |
