550.13-TG2Y (1001)
Unitary Products Group 7
NOTE: Steam rate = (lbs/Hr.) = 1.025 x MBH
TABLE 7: CAPACITY CORRECTION AND
PRESSURE DROP VS GPM
HOT WATER
COIL MODEL
GPM
PRESSURE
DROP
1
PS
I
CAPACITY
CORRECTIO
N
FACTOR
1HW0406
25 0.4 0.79
50 1.0 1.00
75 1.8 1.04
100 3.4 1.07
1HW0407
50 1.0 0.95
75 1.5 1.00
100 2.4 1.03
125 3.5 1.05
1.
For pressure drop in feet (water), multiply these values
by 2.31.
TABLE 8: STEAM COIL CAPACITY
1
(LEU360 only), MBH @ 2psig
2
STEAM COIL
MODEL
UNIT
MODEL
CFM
DRY BULB TEMPERATURE OF AIR ENTERING COIL, °F
10 30 50 70
1NF0454
LEU360
8,000 535 483 432 380
10,000 592 535 478 422
12,000 642 580 518 456
14,000 687 621 555 489
1.
These capacities do not include any blower motor heat.
2.
Multiply these capacities by the factors in Table 9 to correct for higher steam pressure.
TABLE 9: CORRECTION FACTOR FOR HIGH STEAM
Steam Pressure, psig 5 10 15 20 25
Capacity correction factor 1.05 1.12 1.19 1.25 1.30
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