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Due to our policy of continuous product innovation, some specications may change without notication.
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44 | PRODUCT DATA
Single Zone Vertical Air Handling Unit Engineering Manual
EXTERNAL STATIC PRESSURE AND AIRFLOW RANGES
NJ, NK Frames
Table 15: Vertical Air Handling Unit NJ Frame Indoor Unit External Static Pressure and Air Flow Tables.
Static Pressure (in. wg) 0.1 0.2 0.3 0.4 0.5 0.6 0.7
Model No. / Nominal Capacity
of System (Btu/h)
Airow Rate / CFM Setting Value (in. WG)
1
LVN180HV4/
18,000
High 640 63 67 75 81 88 91 95
Mid 580 57 63 69 77 84 89 93
Low 480 51 59 65 73 80 87 91
LVN240HV4/
24,000
High 710 67 71 79 85 92 94 97
Mid 640 63 67 75 81 88 91 95
Low 480 51 59 65 73 80 87 91
IDU External Static Pressure Setting Values
LVN180HV4 and LVN240HV4 (NJ Frame)
Table 16: Vertical Air Handling Unit NK Frame Indoor Unit External Static Pressure and Air Flow Tables.
IDU External Static Pressure Setting Values
LVN360HV4, LVN420HV, LVN480HV (NK Frame)
Static Pressure (in. wg) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Model No. / Nomi-
nal Capacity
of System (Btu/h)
Airow Rate / CFM Setting Value (in. WG)
1
LVN360HV4/
36,000
High 1,100 65 71 79 86 92 96 102 106 112 _
Mid 1,000 61 67 75 82 88 94 100 104 110 116*
Low 900 57 63 71 78 84 92 98 102 108 114
LVN420HV/
42,000
High 1,260 70 77 83 90 96 98 104 108 116* _
Mid 1,100 65 71 79 86 92 96 102 106 114 _
Low 1,000 61 67 75 82 88 94 100 104 112 116*
LVN480HV/
48,000
High 1,400 77 82 87 94 100 102 106 110 116* _
Mid 1,260 70 77 83 90 96 98 104 108 114 116*
Low 1,000 61 67 75 82 88 94 100 104 112 116*
• If the ESP is set incorrectly, the air conditioning may malfunction.
• To get the desired air ow and external static pressure combination, use the setting value from the table. Using a setting value other than the values
listed in the table will not provide the desired combination.
1 Unless otherwise noted, vertical air handling units are UL listed up to 0.5 in. wg total
static pressure, including coil, case, duct work pressure drop, air filter, and largest kW size
heater. Internal static pressure includes coil and case only.
* Airflow rate (CFM) decreases by 3% per 0.1 in. wg.
Factory default status is 0.3 in wg.
Factory default is high static pressure.
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