Danfoss R134a User Manual

Electrical data, connections and wiring
The terminal box is provided with a Ø 25.5 mm
and a Ø 29 mm knockouts.
Motor voltage
Motor voltage
code 3
Motor voltage
code 4
Motor voltage
code 6
Motor voltage
code 7
Motor voltage
code 9
Nominal voltage
50 Hz
-
380 - 400 V - 3 ph
380 - 415 V - 3 ph*
230 V - 3 ph 500 V - 3 ph -
Voltage range
50 Hz
-
342 - 440 V
342 - 457 V *
207 - 253 V 450 - 550 V -
Nominal voltage
60 Hz
200 - 230 V - 3 ph 460 V - 3 ph - 575 V - 3 ph
380 V - 3 ph
380 - 400 V - 3 ph*
Voltage range
60 Hz
180 - 253 V 414 - 506 V - 517 - 632 V
342 - 418 V
342 - 440 V*
* SY 380
Wiring connections
Danfoss SM / SY / SZ scroll compressors are available in ve dierent motor voltages.
According to compressor model, electrical power is connected to the compressor terminals either by
4.8mm (10-32) screws or by M5 studs and nuts. In both cases the maximum tightening torque is 3 Nm.
The terminal box is provided with 2 double
knockouts for the power supply and 3 knockouts
for the safety control circuit.
The 2 power supply, double knockouts
accommodate the following diameters:
• Ø44 mm / Ø1"3/4 hole (for a 1"1/4 conduit) and
Ø34mm / Ø1"3/8 hole (for a 1" conduit),
• Ø32.1 mm / Ø1.26" hole & Ø25.4 mm / Ø1" hole
The 3 other knockouts are as follows:
• Ø20.5 mm / Ø0.81"
• Ø22 mm / Ø7/8" (for a 1/2" conduit)
• Ø16.5 mm / Ø0.65"
SM / SZ 084 - 090 - 100 - 110
- 112 - 120 - 124 - 147* -148*
- 161*
*Except for motor voltage
code 3
SM / SZ148 & 161 code
3-175-185 & SY185 - R & C
version
The terminal box is provided with a Ø 40.5
mm hole for power supply and a Ø 16.5 mm
knockout.
SM/SZ 147 code 3
Terminal box
Ø 25.5 mm knockout
Power supply
Ø 29 mm knockout
Ø 40.5 mm hole
Ø 16.5 mm
knockout
Power supply
Cover holding screw (x2) - Torque: 2.2 Nm
Faston 1/4" tabs
Terminal box
Power supply
Sump heater
16 AB237986441643en-010801
Application Guidelines

Danfoss R134a Specifications

General

Brand	Danfoss
Model	R134a
Category	Air Compressor
Language	English