LG Multi V Series Engineering Manual page 168

VERTICAL / HORIZONTAL AIR HANDLER
Heater Capacity Airflow / Static Pressure Drop Factors
Table 127: Minimum Airflow by Heater Capacity.
Capacity (MBh [tons])
3
12 (1.0) 380
18 (1.5) 480
24 (2.0) 480
30 (2.5) 630
36 (3.0) 900
42 (3.5) 1,000
48 (4.0) 1,000
54 (4.5) 1,300
Airflow rates in the table above are listed in CFM.
Do not operate with less than the minimum airflow. If an airflow is
used below the minimum, there is a risk of fire, which may lead to
physical injury or death.
Table 128: Electric Heater Static Pressure Drop Factors.
Heater Capacity (kW) Static Pressure Drop (in. wg)
0
3
5
8
10
15
20
in wg = inch water gauge
If the electric heater has been installed, then the ESP value has to be set.
For every increase in static pressure by 0.01 in wg, the ESP value must be increased by 1.
If the ESP setting value is inappropriate, the provided safety device will turn the heater off according to
the airflow.
168 | VAH
Heater Capacity (kW)
5 8 10
380 380 Not available
480 480 480
480 480 480
630 630 630
900 900 900
1,000 1,000 1,000
1,000 1,000 1,000
1,300 1,300 1,300
0
-0.01
-0.01
-0.02
-0.02
-0.04
-0.06
Due to our policy of continuous product innovation, some specifications may change without notification.
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LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
15
Not available Not available
Not available Not available
Not available Not available
Not available Not available
900
1,000
1,000
1,300
Flow rate (CFM) is decreased by 3% per 0.1 in wg from 0.8 in wg to 1.0 in wg.
Do not operate with less than the minimum airflow. If an airflow is
used below the minimum, there is a risk of damage to the product.
20
900
1,000
1,000
1,300