Brochure

2-116.7
4
Figure 4.1 - Model HER & PTE Controls and Features
DESIGN FEATURES - MODELS HER, PTE, & VE
➀ Casing - The casing is cleaned and phosphatized prior to
electrostatic application of a baked-on, gray-green polyester
powdercoat paint.
➁ Adjustable Air Deflector Blades (HER & PTE units only) -
Adjustable up and down, blades provide control over the
horizontal air delivery of the unit heater.
➂ Control Compartment - Safely encloses power and
control terminal blocks, contactor(s), fuses and transformer.
Terminal blocks provide easy access for field wiring. On
model HER horizontal units, a hinged bottom panel swings
down for full access to the control compartment.
➃ Safety Fan Guard - Formed from heavy gauge steel rod
stock, the fan guard is attached to the unit heater casing
and provides a rigid support for the motor and protection
from the exposed fan.
➄ Motor/Fan - The totally enclosed, thermally protected,
continuous-duty motor is mounted to the fan guard utilizing
rubber vibration absorbing material. The lightweight
aluminum propeller type fan is connected directly to the
motor shaft and is statically balanced for peak performance
and low sound level.
➅ Motor Heat Shield (VE units only) - Protects the motor
from heated air passing through the unit heater.
➆ Protective Screen (VE & PTE units only) - The aluminum
screen protects heating elements from accidental damage
and further enhances the appearance of the unit heater.
➇ Heating Element - Nickel-chromium wire elements are
enclosed in powder-filled aluminum coated steel tubes to
which spiraled fins are permanently fused for maximum
heat transfer. Elements are resistant to thermal shock and
vibration.
➈ Automatic Reset Overheat Control - In the event of
overheating, this control interrupts the power supply to
the heating elements. The control automatically resets
itself once the heater cools to a safe temperature. Control
includes a switch located in terminal box with a capillary
tube around bottom heating element.
➃
➀
➁
➇
➆
➄
➀
➃
➂
➂
➄
➇
➈
➈
➅
➆
➇
➂ ➃ ➄ and ➈ not shown, but located on back of PTE model.