Heatcraft LFA - Connection Sizes and Weights; Nozzle Selection for LFA Air Defrost; Nozzle Selection for LFAE Electric Defrost; Nozzle Selection for LFAH Hot Gas Defrost

7
7
Model
Distributor Type
No. of
Circuits
R-404A*
Nozzle
R-407A**
Nozzle
OD Length
in. cm in. cm
LFA070 3/16 0.5 24 61 2 L-1/2 L-1/3
LFA087 3/16 0.5 24 61 2 L-3/4 L-1/2
LFA120 3/16 0.5 24 61 4 L-1 L-3/4
LFA135 3/16 0.5 24 61 4 L-1 L-3/4
LFA150 3/16 0.5 24 61 4 L-1-1/2 L-3/4
LFA170 3/16 0.5 24 61 6 L-1-1/2 L-1
LFA190 3/16 0.5 24 61 4 L-1-1/2 L-1
LFA230 3/16 0.5 24 61 6 L-2 L-1-1/2
LFA270 3/16 0.5 30 76 12 L-2 L-1-1/2
Standard Nozzle Selection
Model
Distributor Type
No. of
Circuits
R-404A
Nozzle*
R-407A**
Nozzle
OD Length
in. cm in. cm
LFAE070 3/16 0.5 24 61 2 L-1 L-3/4
LFAE087 3/16 0.5 24 61 2 L-1 L-3/4
LFAE120 3/16 0.5 24 61 4 L-1-1/2 L-1
LFAE135 3/16 0.5 24 61 4 L-2 L-1
LFAE150 3/16 0.5 24 61 4 L-2 L-1-1/2
LFAE170 3/16 0.5 24 61 6 L-2-1/2 L-1-1/2
LFAE190 3/16 0.5 24 61 4 L-2-1/2 L-1-1/2
LFAE230 3/16 0.5 24 61 6 L-3 L-2
LFAE270 3/16 0.5 30 76 12 L-4 L-2-1/2
Model
Distributor Type
No. of
Circuits
R-404A
Nozzle*
R-407A**
Nozzle
OD Length
in. cm in. cm
LFAH070 1/4 0.6 24 61 2 L-1 L-3/4
LFAH087 1/4 0.6 24 61 2 L-1-1/2 L-3/4
LFAH120 1/4 0.6 24 61 4 L-2 L-1
LFAH135 1/4 0.6 24 61 4 L-2 L-1-1/2
LFAH150 1/4 0.6 24 61 4 L-2-1/2 L-1-1/2
LFAH170 1/4 0.6 24 61 6 L-2-1/2 L-1-1/2
LFAH190 1/4 0.6 24 61 4 L-3 L-2
LFAH230 1/4 0.6 24 61 6 L-4 L-2
LFAH270 1/4 0.6 30 76 12 E-4 E-2-1/2
Model
Connections OD (in.) Approx. Net Weight
Inlet
†
Suction Hot Gas lbs. kg
LFA*070 1/2 7/8 1/2 178 81
LFA*087 1/2 7/8 1/2 189 86
LFA*120 1/2 7/8 1/2 262 119
LFA*135 1/2 7/8 1/2 264 120
LFA*150 1/2 1-1/8 1/2 280 127
LFA*170 1/2 1-1/8 1/2 285 129
LFA*190 1/2 1-1/8 1/2 298 135
LFA*230 1/2 1-1/8 1/2 366 166
LFA*270 1/2 1-3/8 5/8 405 184
†
7/8" inlet on hot gas defrost models
DIMENSIONAL DATA
Model LFAE Electric Defrost
Model LFA Air Defrost
Model LFA/LFAE/LFAH AirElectric Hot Gas Defrost
Model LFAH Hot Gas Defrost
LAH = Air Defrost
LAD = Electric Defrost
LAG = Hot Gas Defrost
*Also suitable for R-507, R-502, R-134a, R-401A, R-402A,
R-448A & R-449A.
** Also suitable for R-407C, R-407F, R-22
Note:
Nozzles sized for 90-100°F liquid temperature at
expansion valve.
Contact Application Engineering for guidance if
n
Liquid temperature is not 90-100°F
n
Evaporator TD is not 10°-15°F (room temperature –
saturated suction temperature)
n
Electric defrost and hot gas models with a saturated
suction temperature of 10°F or higher
Caution: Refrigeration system will not perform
properly without correct nozzle!