Danfoss Designation Installation guide
Key to Alternative Current-Compressor Type Designation
1 2 3 4 5 6 7
Compressor
design
Protector location Optimization level Compressor size Application range Refrigerant Code letter
for starting
characteristics
Generation
Internal External
PTC
LST
Relay
HST
PTC Relay Variable
speed
Standard > High Capacity
at rating
point
Displace-
ment
P
L
Blank
E
a)
Always
semi-direct
intake
20
30
35
50
C = LBP
CL = LBP
CM = LBP
CN = LBP
D = HBP
DL = HBP
F = LBP/(MBP)
FT = LBP tropical
G = LBP/MBP/HBP
GH = Heat pumps
GHH = Heat pumps optimized
K = LBP/(MBP)
KT = LBP/(MBP) tropical
MF = MBP
MK = MBP
ML = MBP
MN = MBP
S = LBP/HBP (service)
ST = LBP
tropical
(service)
R22
R404A/R507
R22
R290
R22
R404A/R507
(R407C)
R134a
R134a
R134a
R134a
R134a
R600a
R600a
R134a
R600a
R404A/R507
R290
R426A
R401A/R401B
R409A/R409B
R426A
R401A/R401B
R409A/R409B
Blank >
universal
(principal
rule)
K = LST
characteristics
(capillary
tube)
X = HST
characteristics
(expansion
valve)
Blank >
fi rst
generation
.2 >
second
generation
.3 >
third
generation
.4 >
fourth
generation
T
T
F
LV E
b)
S
Y
a)b)Xa)
2.5, 3, 4
4.5, 4.8, 5
5.7, 6, 6.5
7, 7.5, 8
8.7, 9, 10
D
Semi-direct or direct intake
4, 4.8
5.7, 6.5
7.5, 8.7
9.4, 10
N U
a)
5.2, 5.5
5.7, 6, 6.1
7, 7.3, 8.0
8.4, 8.8,
9 10, 11
13, 15
F R
6
7.5
8.5
10
11
S C C LV E
10
12
15
18
21
G
Power supply
Always
semi-direct
intake
18
21
26
34
1 phase 3 phase
S T
Blank =
Standard
E = Energy-optimized a) = Run capacitor compulsory
S = Semi-direct intake b) = Run capacitor optional
Y = High energy-optimized
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X = High energy-optimized
Danfoss A/S • Nordborgvej 81 . 6430 Nordborg . Denmark
U = High energy-optimized
Tel: +45 7488 2222 • www.compressors.danfoss.com
DEHC.EI.050.A3.02, 05-2011
Key to Direct Current-Compressor Type Designation
1 2 3 4 5 6 7
Compressor
design
Protector location Optimization level Compressor size Application range Refrigerant Code letter
for starting
characteristics
Generation
Internal External
PTC
LST
Relay
HST
PTC Relay Variable
speed
Standard > High Capacity
at rating
point
Displace-
ment
BD
P/T-Housing
Blank
35
50
150
250
350
CN = LBP
CL = LBP
F = LBP/(MBP)
GH = HBP
K = LBP/(MBP)
R290
R404A/R507
R134a
R134a
R600a
Blank >
universal
(principal rule)
Blank >
fi rst
generation
BD
Micro
1.4
Products conrresponding to these designations are manufactured by Secop, formerly
Danfoss Household Compressors. They are available through Danfoss sales network.
2/2
Danfoss A/S • Nordborgvej 81 . 6430 Nordborg . Denmark
Tel: +45 7488 2222 • www.compressors.danfoss.com
DEHC.EI.050.A3.02, 05-2011
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