
Sample Specifications - HRD/HRR/HRB
Hooded Roof Ventilator
1.1 Fans shall be tested and rated in accordance with AMCA air and sound methods and standards.
1.2 Fans shall conform to AMCA 99 standards.
1.3 All motors and electrical components shall comply with NEMA, UL or other governing body.
1.4 Fan performance rating shall be based on methods as developed by AMCA standard 210.
1.5 Form, function and application of the fan shall be as defined by ASHRAE, AMCA and SMACNA in regard to air system design
in compatibility with the fan.
Direct Drive - HRD
PRODUCT
2.1 The fan shall be of an axial flow propeller, panel fan mount,
direct drive configuration.
2.2 The fan shall be direct drive with the propeller mounted
directly to the motor shaft.
2.3 The fan housing shall be of heavy gage sheet steel and
shall support a steel spun panel, which shall allow for
smooth flow into the propeller.
2.3.1 The fan panel shall have an integrally spun, deep shroud
for smooth air entry into the propeller.
2.4 The fan’s motor support and mounting structure shall be
fabricated of heavy steel plate.
2.5 The propeller shall consist of 6 blades affixed directly to
a precision cast or machined hub assembly. The hub is
designed to incorporate a taper lock bushing and is keyed
directly to the motor shaft.
2.6 The incorporated panel fan assembly and curb cap shall
be coated with an air dry enamel. The hood and side
sheets shall be manufactured of galvanized sheet steel.
Galvanized and aluminum parts are to remain uncoated.
2.7 The hood shall be supported and attached by means
of heavy angle iron supports. Hoods shall be lockseam
constructed for weatherproof service and designed to
reduce sagging under heavy snow loading.
2.8 One side of the housing shall be removable for access to
interior components.
2.9 The final complete fan assembly shall be vibration tested
and mechanically balanced as per AMCA 204 Grade
BV-3 / ANSI S2.19 G 6.3 and the results recorded on a
label placed on the fan assembly.
2.10 The motor shall be of a typical NEMA-T frame type and
typical with the motor industry. The electric motor shall be
as indicated on the fan schedule and as available from the
motor vendors.
ACCESSORIES
3.1 The fan shall have birdscreens manufactured of 3/4"
non-flattened expanded galvanized metal around the
exposed underside of the hood.
3.2 The fan shall be of a fixed, reversed air flow configuration
with a double entry bell on the fan panel as indicated on
the fan schedule where unit is required for supply air.
3.3 The fan shall be of a reversible air flow configuration for
supply or exhaust with a double entry bell on the panel as
indicated on the fan schedule. The fan’s performance shall
be equal in either direction.
3.4 Unit shall be of galvanized construction as shown on
the fan schedule. All exterior surfaces shall be made of
galvanized sheet steel or hot dipped galvanized. Hardware
shall be zinc plated. The panel fan assembly on the interior
of the unit shall be coated with an air dry enamel finish.
Belt Drive - HRR/HRB
PRODUCT
2.1 The fan shall be of an axial flow propeller, panel fan mount,
belt drive configuration.
2.2 The fan shall be belt drive, Arrangement 9 or 10 (as
indicated on the fan schedule). The drive shall have a
minimum 1.5 service factor.
2.3 The fan shaft should be steel, ground for precision fit to
bearings and keyed for driving the impeller and driven
sheave.
2.4 Fan bearings should be cast iron housing, self-aligning,
relubricatable bearings.
2.4.1 Fan bearings shall have a minimum L
AFBMA of 40,000 hours.
2.5 Fan housing shall be of heavy gage sheet steel and shall
support a steel spun panel, which shall allow for smooth
flow into the propeller.
2.6 The fan panel shall have an integrally spun, deep shroud
for smooth air entry into the propeller.
2.7 The fan’s motor support and mounting structure shall be
fabricated of heavy steel plate.
2.8 The propeller shall consist of 6 blades affixed directly to
a precision cast or machined hub assembly. The hub is
designed to incorporate a taper lock bushing and is keyed
directly to the fan shaft.
2.9 The incorporated panel fan assembly and curb cap shall
be coated with an air dry enamel. The hood and side
sheets should be manufactured of galvanized sheet steel.
Galvanized and aluminum parts are to remain uncoated.
2.10 The hood shall be supported and attached by means
of heavy angle iron supports. Hoods shall be lockseam
constructed for weatherproof service and designed to
reduce sagging under heavy snow loading.
2.11 One side of the unit housing shall be removable for access
to interior components.
2.12 The final complete fan assembly shall be vibration tested
and mechanically balanced as per AMCA 204
Grade BV-3 / ANSI S2.19 G 6.3 and the results recorded
on a label placed on the fan assembly.
2.13 The motor shall be of a typical NEMA-T frame type and
typical with motor industry. The electric motor shall be as
indicated on the fan schedule and as available from the
motor vendors.
ACCESSORIES
3.1 The fan shall have birdscreens manufactured of 3/4"
non-flattened expanded galvanized metal around the
exposed underside of the hood.
3.2 The fan shall be of a fixed, reversed air flow configuration
with a double entry bell on the fan panel as indicated on
the fan schedule where unit is required for supply air.
3.3 The fan shall be of a reversible air flow configuration for
supply or exhaust with double entry bell on the fan panel
as indicated on the fan schedule. The fan’s
shall be equal in either direction.
3.4 Unit shall be of galvanized construction as shown on
the fan schedule. All exterior surfaces shall be made of
galvanized sheet steel or hot dipped galvanized. Hardware
shall be zinc plated. The panel fan assembly on the interior
of the unit shall be coated with an air dry enamel finish.
10 life as defined by
performance
PENNBARRY
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HTB - Sample Specifications
Large T-Hood Roof Ventilator
1.1 Fans shall be tested and rated in accordance with AMCA air and sound methods and standards.
1.2 Fans shall conform to AMCA 99 standards.
1.3 All motors and electrical components shall comply with NEMA, UL or other governing body.
1.4 Fan performance rating shall be based on methods as developed by AMCA standard 210.
1.5 Form, function and application of the fan shall be as defined by ASHRAE, AMCA and SMACNA in regard to air system design
in compatibility with the fan.
PRODUCT
2.1 The fan shall be of an axial flow propeller, panel fan
mount, belt drive configuration.
2.2 The fan shall be belt drive arrangement 10 (as indicated
on the fan schedule). The drive shall have a minimum
1.5 service factor.
2.3 The fan shaft should be steel, ground for precision fit to
bearings and keyed for driving the impeller and driven
sheave.
2.4 Fan bearings should be cast iron housing, self-aligning,
relubricatable bearings.
2.4.1 Fan bearings shall have a minimum L10 life as defined
by AFBMA of 40,000 hours.
2.5 Fan housing shall be of heavy gage sheet steel,
reinforced with square steel tubing framework and shall
support a steel, integrally spun Venturi panel, which
shall allow for smooth flow into the propeller.
2.6 The adjustable motor support and mounting structure
shall be fabricated of heavy steel plate and square steel
tubing.
2.7 The propeller shall consist of 6 blades affixed directly
to a precision cast or machined hub assembly. The hub
is designed to incorporate a taper lock bushing and is
keyed directly to the fan shaft.
2.8 The incorporated panel fan assembly and curb cap
shall be coated with an air dry enamel. The hood and
side sheets should be manufactured of galvanized
sheet steel. Galvanized and aluminum parts are to
remain uncoated.
2.9 The hood shall be supported and attached by means
of heavy angle iron supports. Hoods shall be lockseam
constructed for weatherproof service and designed to
reduce sagging under heavy snow loading.
2.10 One side of the unit housing shall be removable for
access to interior components.
2.11 The final complete fan assembly shall be vibration
tested and mechanically balanced as per AMCA
204 Grade BV-3 / ANSI S2.19 G 6.3 and the results
recorded on a label placed on the fan assembly.
2.12 The motor shall be of a typical NEMA-T frame type and
typical with motor industry. The electric motor shall be
as indicated on the fan schedule and as available from
the motor vendors.
ACCESSORIES
3.1 The fan shall have birdscreens manufactured of 3/4"
non-flattened expanded galvanized metal around the
exposed underside of the hood. These are removable in
applications where supply filters are used.
3.2 The fan shall be of a fixed, reversed air flow
configuration with a double entry bell on the fan panel
as indicated on the fan schedule where unit is required
for supply air.
3.3 The fan shall be of a reversible air flow configuration
for supply or exhaust with double entry bell on the
fan panel as indicated on the fan schedule. The fan’s
performance shall be equal in either direction.
3.4 Unit shall be of galvanized construction as shown on
the fan schedule. All exterior surfaces shall be made
of galvanized sheet steel or hot dipped galvanized.
Hardware shall be zinc plated. The panel fan assembly
on the interior of the unit shall be coated with an air dry
enamel finish.
40
PENNBARRY