Aerovent 24S728 NDH 3/4 HP Installation, Operation And Maintenance Instructions
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Brand: Aerovent
Category: Heater
Type: Installation, operation and maintenance instructions
Model: Aerovent 24S728 NDH 3/4 HP , Aerovent 24S728 PDH 3/4 HP
Pages: 4
Download Aerovent 24S728 NDH 3/4 HP Installation, operation and maintenance instructions
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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.
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 voltage.
3. Connect the gas supply line using the regulator
furnished with the unit. Consult your gas company
service representative 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.
14'
12'
5'
18" Min. Clearance
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
Gas Door Air Heater
©1997-2017 Aerovent
13'
12'
13' 4'
45°
Typical Overhead Door
Angular Mounting Approx. 45°
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.
NOTICE
NATURAL GAS
MODEL NO.
INPUT
BTU
NOMINAL
TEMP. RISE
GAS
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.
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H
H
R
R
Back of Lid
Box
Lamp
Fig. 2. Operating Station
Connect H, 1, 2, and R to terminal
strip in unit control box.
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2
1
1
2
2
H
H
R
R
13
15
Lamp
Back of Lid
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.
Throughout this manual, there are a number of NOTICE statements that must be read and adhered to.
NOTICE
Indicates information considered important, but not hazard-related.
It is the responsibility of all personnel involved in installation, operation and maintenance to fully
understand the Notice procedures by which hazards are to be avoided.
*PDH = Propane units