Aerovent IM-200 - Manual

Installation
1. Install the door heater in the position required. Dimensions
can vary to suit door opening. Heaters can be mounted in
horizontal, angular or vertical position. Do not mount with
the control box upside down or on the bottom. Weight of
the unit is approximately 375 lbs.
NOTE: Negative pressure in the building will have an
affect on the unit’s ability to maintain an air curtain effect.
This should be taken into account when locating the unit.
2. Connect electrical power. If the unit does not have a built-
in disconnect switch, then an external disconnect should be
provided by the installer. Be sure power supply is the
proper voltage. These units are furnished for specified volt-
age.
Gas Door Air Heater
©2000 Aerovent
3. Connect the gas supply line using the regulator furnished
with the unit. Consult your gas company service represen-
tative to determine the proper size for the gas line. This
varies according to the pressure and length of the run.
Required gas input can be determined by the chart, Fig. 1.
NATURAL. GAS INPUT NOMINAL GAS
MODEL NO. BTU TEMP. RISE PRESS.
24S728 325,000 73°F 1 oz.
NDH* 440,000 99°F 2 oz.
3/4 HP 580,000 131°F 3 oz.
440,000 66°F 2 oz.
580,000 85°F 3 oz.
24S728 680,000 102°F 4 oz.
NDH* 790,000 118°F 5 oz.
2 HP 870,000 130°F 6 oz.
990,000 148°F 7 oz.
*PDH = Propane units
4. Mount the operating station in a convenient location and
make connections to the terminal strip in the unit as indi-
cated in Fig. 2, or Fig. 3 for units supplied with the option-
al high-low fire feature.
Fig. 2. Operating Station
Connect H, 1, 2, and R to terminal
strip in unit control box.
Fig. 3. Operating Station with Optional Hi-Lo Fire
Connect H, 1, 2, R, 13 and 15 to
terminal strip in unit control box.
Typical Overhead Door
Angular Mounting Approx. 45°
Roll Top or Straight Lift Door
Vertical Mounting Used With Roll Top Doors
General Installation, Operation and Maintenance Instructions For Aerovent Products
IM-200
June 1997