Nozzle selection, Model bma air defrost, Model bme/bml electric defrost – Heatcraft Refrigeration Products BMG User Manual
Page 14: Model bmg/bmf hot gas defrost
1
Nozzle Selection
Model BMA
Air Defrost
Model
No. of
Fans
Distributor Tube (in.)
No. of Circuits
R-0A
*
Nozzle
R-
Nozzle
OD
Length
BMA130
1
3/16
21-1/2
3
L-1
L-3/4
BMA155
1
3/16
21-1/2
5
L-1
L-3/4
BMA245
2
3/16
21-1/2
9
G-2-1/2
G-1-1/2
BMA300
2
3/16
21-1/2
9
G-2-1/2
G-1-1/2
BMA365
3
3/16
21-1/2
9
G-3
G-2
BMA450
3
3/16
21-1/2
12
E-4
E-2-1/2
BMA510
4
3/16
21-1/2
13
E-5
E-3
BMA600
4
3/16
21-1/2
18
E-5
E-3
BMA710
5
3/16
21-1/2
18
E-6
E-4
Model BME/BML
Electric Defrost
Model
No. of
Fans
Distributor Tube (in.)
No. of
Circuits
R-0A
*
Nozzle
R-
Nozzle
OD
Length
6 F
ins P
er I
nch
BME101
1
3/16
21-1/2
5
L-1-1/2
L-3/4
BME140
1
3/16
21-1/2
6
L-1-1/2
L-1
BME190
2
3/16
21-1/2
9
G-2-1/2
G-1-1/2
BME260
2
3/16
21-1/2
12
E-3
E-2
BME310
3
3/16
21-1/2
13
E-4
E-2-1/2
BME390
3
3/16
21-1/2
18
E-5
E-3
BME430
4
3/16
21-1/2
12
E-5
E-3
BME520
4
3/16
21-1/2
17
E-6
E-4
BME620
5
3/16
21-1/2
17
E-8
E-5
F
ins P
er I
nch
BML100
1
3/16
21-1/2
6
L-1-1/2
L-1
BML165
2
3/16
21-1/2
9
G-2-1/2
G-1-1/2
BML220
2
3/16
21-1/2
12
E-3
E-2
BML250
3
3/16
21-1/2
13
E-4
E-2-1/2
BML330
3
3/16
21-1/2
18
E-5
E-3
BML370
4
3/16
21-1/2
12
E-5
E-3
BML440
4
3/16
21-1/2
17
E-6
E-4
BML530
5
3/16
21-1/2
17
E-8
E-5
Model BMG/BMF
Hot Gas Defrost
Model
No. of
Fans
Distributor Tube (in.)
No. of
Circuits
R-0A
*
Nozzle
R-
Nozzle
OD
Length
6 F
ins P
er I
nch
BMG190
2
1/4
21-1/2
9
E-3
E-1-1/2
BMG260
2
1/4
21-1/2
12
E-4
E-2-1/2
BMG310
3
3/16
21-1/2
13
E-4
E-2-1/2
BMG390
3
3/16
21-1/2
18
E-5
E-3
BMG430
4
3/16
21-1/2
13
E-5
E-3
BMG520
4
3/16
21-1/2
18
E-6
E-4
6 F
ins P
er I
nch
BMF165
2
1/4
21-1/2
9
E-3
E-1-1/2
BMF220
2
1/4
21-1/2
12
E-4
E-2-1/2
BMF250
3
3/16
21-1/2
13
E-4
E-2-1/2
BMF330
3
3/16
21-1/2
18
E-5
E-3
BMF370
4
3/16
21-1/2
13
E-5
E-3
BMF440
4
3/16
21-1/2
18
E-6
E-4
*Also suitable for R-507, R-502, R-134A, R-401A, R-402A
Nozzles sized for 90° - 100°F liquid temp. at expansion valve. Refer to manual H-IM-64 if liquid temp. is not 90° - 100°F
Consult Bohn Application Engineering if evaporator TD is not 10° - 15ºF, (room temp. - saturated suction temp.)
Caution: Refrigeration system will not perform properly without Correct Nozzle!