Danfoss R134a User Manual

Danfoss scroll compressors are available
both as single compressors and as tandem
units. The example below presents the single
compressor nomenclature which equals the
technical reference as shown on the compressor
nameplate.
Code numbers for ordering list are in section
“Ordering information & packaging”.
For tandem and trio assemblies, please refer
to the Danfoss Parallel Application Guidelines
documentation FRCC.PC.005.
Nomenclature
Compressor model designation
Family, lubricant
& refrigerant
Nominal capacity
in thousand Btu/h at 60 Hz, R22,
ARI conditions
Nominal capacity
Family, lubricant
& refrigerant
SM: Scroll, Mineral oil, R22/R417A*
SY: Scroll, POE lubricant, R22/R417A/
R407C/R134a/R513A**
SZ: Scroll, POE lubricant, R407C - R134a
(R404A, R507A for SZ084 to SZ185, R513A
for SZ148 to SZ185 **)
Voltage Version Evolution
index
C
A
4
7
SZ
SY
-
A
R
CA
185
300
Single compressors
Single compressors
: brazed
Internal overload protector
A
S 112-124-147
S175-185
110-240V
24V AC
110-240V
C
: brazed
Motor protection type
V : brazed
S 084-090-100-110-120-148-161
Applies to
R : rotolock
X
P : brazed
: brazed
CB
CA
Y : rotolock
C: brazed
PA
B: 110-240V
A: 24V AC
PB
P: rotolock A: 24V AC
CB
B: 110-240V
CA C: brazed A: 24V AC
B: 110-240V
Module voltageConnection
Internal thermostat
S 240 - 300
S 380
Electronic protection
module
S 185
Motor voltage code
3: 200-230V/3~/60 Hz
4: 380-400V/3~/50 Hz - 460V/3~/60 Hz
SY380: 380-415V/3~/50 Hz - 460V/3~/60 Hz
6: 230V/3~/50 Hz
7: 500V/3~/50 Hz - 575V/3~/60 Hz
9: 380V/3~/60 Hz
SY380: 380-400V/3~/60 Hz
* When SM compressors are used with R417A, the factory charged mineral oil 160P must be replaced by polyolester oil 160SZ
** Only motor voltage 4 are qualified with R513A
4 AB237986441643en-010801
Application Guidelines

Danfoss R134a Specifications

General

Brand	Danfoss
Model	R134a
Category	Air Compressor
Language	English