Emerson SZO22, SZV22 Electrical Requirements, Typical Compressor Module power supply requirements

Single-Compressor Module Installation

2.6.4Electrical Requirements

Figure 11 Typical Compressor Module Electrical Requirements

1	1	1
	Optionalifif morethan one
	coCompressorressor moModulele useded
4		2
		3
Power	24VDC	24V Discrete Inputs
	Cooling
to Compressors		from Scroll Module
	Fan

Code Description

1Control Techniques VFD,* 10 or 15 HP model specific

224VDC power supply **

3PLC or other control for inputs from Compressor Module

4480V 3-phase input ***

Notes

*VFD on Variable Speed Drive models.

**All other components supplied by Packagers.

***Contact factory for information about single-phase and other voltage applications.

Table 2	Typical Compressor Module power supply requirements
	Compressor Power (data based on 480VAC)	Variable Speed
Module horsepower		10 or 15 HP
VFD voltage supply range		342-528VAC
Phase		3-phase*
Frequency		50/60 Hz
Low Voltage DC Specifications - Oil Cooler Fan Voltage and Power
Fan motor voltage		24VDC
Total fan motor current		4.5A

Additional power may be required to support customer logic and control circuits.

*Contact factory for information about single-phase applications.

**Reduced capacity at 50 Hz.

13 2008SSD-34 (5/11)