036-21096-001-C-0206
Unitary Products Group 5
Hot Water Coil
Accessory
Unit Model GPM CFM
Entering Water Temp. Minus Entering Air Temp., °F
70 90 110 130 150
1HW0405 LEU240 35
6,400 179 229 280 331 382
8,000 199 255 312 369 425
9,600 220 282 344 407 469
*These capacities do not include any blower motor heat.
NOTE:
Water Temperature Drop ( F)
2x MBH
o
=
GPM
CAUTION:
Do NOT
operate the supply air blower motor above its
nominal HP rating when a unit is equipped with a hot
water coil accessory.
Do NOT
use steam in these hot water coils.
CAPACITY CORRECTION AND PRESSURE DROP VS GPM
Hot Water Coil
Accessory
GPM
Pressure Drop
+
PSI
Capacity Correction
Factor
1HW0405
15 0.2 0.74
35 0.8 1.00
55 1.5 1.04
75 2.5 1.06
+
For pressure drop in feet (water), multiply these values by 2.31.
STEAM COIL CAPACITY
1
,Mbh@2psig
2
Steam Coil
Accessory
Unit Model CFM
Dry Bulb Temperature of Air Entering Coil, °Φ
10 30 50 70
1NF0453 LEU240
6,400 402 364 325 286
8,000 464 419 374 330
9,600 481 435 388 342
1
These capacities do not include any blower motor heat.
2
Multiply these capacities by the following factors to correct for higher steam pressures.
NOTE: Steam rate (lbs./hr.) = 1.025 x MBH.
CAUTION:
Do NOT
operate the supply air blower motor above its nomi-
nal HP rating when a unit is equipped with a steam coil acces-
sory.
Although these coils are suitable for much higher pressures,
steam above 25 psig will provide too much heat and could
damage the blower motor.
Steam pressure, psig 5 10 15 20 25
Capacity correction factor 1.05 1.12 1.19 1.25 1.30
ACCESSORY STATIC RESISTANCES (IWG)
CFM
Supply
Air
Plenum
Return
Air
Grille
Non-
Freeze
Steam Coil
Hot
Water
Coil
6400 .03 .04 .14 .07
7200 .03 .05 .17 .08
8000 .04 .06 .21 .10
8800 .05 .07 .25 .12
9600 .06 .08 .29 .14
PLENUM PERFORMANCE
CFM
Throw, Feet
Minimum Maximum
6400 80 145
8000 98 165
9600 115 185
HEATING COIL CAPACITIES
HOT WATER COIL CAPACITY*, Mbh
BLOWER MOTOR AND DRIVE DATA
Drive
Accessory
Model No.
Motor
Belt
Blower Pulley Motor Pulley
RPM Range HP
1
Frame Shaft Size Mfgs. No. Size Mfgs. No. Size
1LD0404 600 - 775 3 56 7/8 A55 AK104 10 X 1-3/16 1VM50 3.4-4.4 x 7/8
1LD0406 775 - 970 5 184 1-1/8 A51
2
2AK94 9 X 1-3/16 2VP56
4.0-5.0 x 1-
1/8
1
All motors are 1750 RPM and have a 1.15 service factor.
2
Two matched belts.
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