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T F /,, - The Skid-Mounted Blower Assembly

The document describes a typical skid-mounted blower assembly that provides low-pressure air for combustion and cooling. The assembly consists of two blowers, motor starters, indicator lights, pressure switches, a common skid, piping, and optional air filters. It is factory wired and tested with automatic failover capabilities from one blower to the other if low pressure is detected.

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135 views2 pages

T F /,, - The Skid-Mounted Blower Assembly

The document describes a typical skid-mounted blower assembly that provides low-pressure air for combustion and cooling. The assembly consists of two blowers, motor starters, indicator lights, pressure switches, a common skid, piping, and optional air filters. It is factory wired and tested with automatic failover capabilities from one blower to the other if low pressure is detected.

Uploaded by

prihartono_dias
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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BLOWER ASSEMBLY

THE FORNEY BLOWER ASSEMBLY SUPPLIES COOLING AND/OR COMBUSTION AIR TO IGNITERS, DETECTORS, OR
ANY OTHER EQUIPMENT THAT REQUIRES LOW-PRESSURE AIR. The skid-mounted blower assembly
provides air to burner-front devices.

FLAME DETECTORS
A typical skid-mounted blower assembly consists of the following components (see
drawing, reverse side):
• Blowers – Two 100% capacity New York Blowers.
• Motor Starters – Two cabinets which provide either local or remote control.
• Lights – “Running” and “Standby” indicating lights for each blower.
• Logic – Standby logic for the idle blower.
• Pressure Switches – Two Static-O-Ring pressure switches for detection of
low pressure and transfer to standby blower and one to provide “pressure
adequate” signal.
• Skid – One common skid with the two factory-mounted blowers.
• Piping – One “Y” piping and check valve damper to common outlet.
• Optional – Fan inlet air filters.
The complete Blower Assembly is factory wired and tested. The motor
starter cabinets contain hard-wired, fan-transfer logic in the event low blower
outlet pressure is sensed by the two pressure switches.
The blower arrangement is a direct drive (i.e., arrangement 4) type;
however, other arrangements are available for special applications. The blower
outlet flange is full-seal welded and matches ANSI Class 125/150 hole pattern.
The blower outlet connection is a dual taper design for low noise levels. The
blower wheels are a radial design which develop a flat curve for stable
performance even at low turndown ratios.

• EASY RETROFIT - Blower skid • EASY MAINTENANCE - Skid


contains all components components are name brand,
mounted and ready for industry standard, designed for
operation. easy access and maintenance.

• BROAD CAPACITIES RANGE - • SUPERIOR PERFORMANCE-


Blower capacities of 300 to Radial wheel design produces a
3000 SCFM with automatic flat curve over the range of air
fail-over capabilities to the flows.
standby blower.
BLOWER ASSEMBLY
FLAME DETECTORS

SPECIFICATIONS
Capacity: 300 - 3000 SCFM
Horsepower: 1.5 - 50
Outlet Size (inches): 4 - 12
Outlet Pressure (in. WC): 27 - 46
Wheel Diameter (inches): 14 - 26
Wheel Material: Aluminum
RPM: 3000/3600
Motor Type: TEFC
Voltage: 230/460VAC, 3 phase, 60 Hz
380VAC, 3 phase, 50 Hz (China)
Single blower assembly and lower capacity regenerative blowers are also available.

DISCHARGE PRESSURE
LINE & SWITCHES

OUTLET ASSEMBLY
WITH DOUBLE ACTING
[ T SHUT OFF VALVE

MOTOR STARTER [O]


CABINETS
FAN "B" FAN "A"

Forney Corporation
3405 Wiley Post Road
Carrollton, TX 75006 USA
TECHNICAL BULLETIN
Tel: 972.458.6100
PUBLICATION
#404005-15 REV 10/01
Fax: 972.458.6650
www.forneycorp.com

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