Specification

1-150.15
5
DESIGN BENEFITS
Unit Features - Vertical Delivery Unit Heaters
Vertical delivery unit heaters are ideal for heating buildings with high ceilings or areas
that require the heater to be mounted above obstructions such as craneways. Selection
from a variety of heat throw patterns is made easy by choosing from four types of air
deflectors. Heat throw patterns range from a high-velocity narrow jet to a gentle-velocity
broad based cone of heated air.
In addition to the features noted on page 2, features that enhance the popularity of the vertical
delivery unit heater are:
• Extended motor life with the use of the standard motor cooling cone. The cooling cone
protects the motor from intense radiant and convection heat from the coil when the fan
is not running. The cone also meters a controlled volume of ambient air over the motor
to reduce motor temperature, when the motor is running.
• All models through V/VN 279 have tapped holes for threaded rod or optional pipe
hanger adapter kit.
• All models V/VN 333 and larger have angle-iron mounting bracket with 5/8" diameter hanger holes.
• All vertical units are supplied with an outlet fan guard covering the opening in the bottom of the unit.
Motor-Cooling Cone – Shields motor from coil
heat - prolongs life of insulation, windings, and
lubricant. Prolongs motor life (V/VN models only).
Coil – Aluminum fins firmly bonded to tubes
for maximum heat transfer. Steam and water-
carrying passages between extra-heavy steel
pipe connections are copper for model V/PT
and cupro-nickel for model VN/PTN.
Motor – All motors are totally enclosed. Single
phase and explosion-proof types include built
in thermal overload protection. Selected and
tested for operation on specific unit heater
models.
Fan – Accurately balanced to operate quietly
and at lowest possible power cost.
Junction Box – All motor wiring is terminated in an
electrical junction box either supplied on the unit
heater casing or as an integral part of the motor.
Motor Easily Removable – Modine design permits
motor to be removed through opening below the
unit especially important where heaters are installed
close to ceiling (V/VN models only).
Vertical Fins – Less opportunity for dust and dirt to
collect. Exposed for easy cleaning with air hose
and brush.
Casings – Baked-on, gray-green polyester powder
coat paint applied over rust- and corrosion-
resistance treated steel lasts longer.
Figure 5.1 - Unit Features
Unit Features - Power-Throw
TM
Horizontal Delivery Unit Heaters
Power-Throw
™
horizontal delivery unit heaters are ideal for heating large buildings where
a number of smaller units can be replaced by a few larger Power-Throw
™
units. This
results in a more economical installation. Their high velocity air delivery results in the
greatest heat throw available.
Power-Throw
™
units are also ideally suited for blanketing doors that frequently open.
Because of high velocity air delivery, care must be taken to avoid directing the air stream
at building occupants.
In addition to the features noted on page 2, features that enhance the popularity of the Power-Throw
™
horizontal delivery unit heater are:
• All models through PT/PTN 279 have hanger brackets with 5/8" diameter hanger holes
for 3-point suspension.
• All models larger than PT/PTN 279 have hanger brackets with 5/8" diameter hanger
holes for 2-point suspension and angle supports for 4-point suspension.
• Air distribution is controlled by a standard adjustable position horizontal louver assembly.
• The air stream can be concentrated into a high velocity jet or broadened to cover a greater area.
• Fan blades are properly balanced and pitched to move large volumes of high velocity air at relatively low sound levels.
• Refer to Figure 5.1 for features similar to the V/VN vertical models.