York VSD 503 - User Manual

035-27337-100
Form Number: 160.00-O4 (820)
Supersedes: 160.00-O4 (220)
Operation Manual
Issue Date: 2020-08-19
Liquid-Cooled OptiSpeed Compressor
Speed Drive
Models VSD 270, 292, 351, 385, 419, 424, 503, 608, 658, 704,
790, 868, 882, 917, 948, and 1055. Models LVD 270, 292, 351,
385, 419, 424, 503, 608, 658, 704, and 900.

York VSD 503 Specifications

General

Category	Inverter
Type	Variable Speed Drive
Input Frequency	50/60 Hz
Output Frequency	0-400 Hz
Overload Capacity	150% for 60 seconds
Cooling Method	Forced Air Cooling
Operating Temperature	-10°C to +50°C
Enclosure Rating	IP20
Model	VSD 503
Input Voltage	380-480VAC, 3-Phase
Control Method	Sensorless Vector Control
Protection Features	Overcurrent, Overvoltage, Undervoltage, Short Circuit
Humidity	5-95% RH (non-condensing)
Communication Interface	Modbus RTU

Summary

General Safety Guidelines

VSD Models

VSD Model Nomenclature

VSD Part Numbers and Descriptions

Lists VSD model part numbers and their descriptions for various HP ratings and configurations.

LVD Models

LVD Model Nomenclature

LVD Part Numbers and Descriptions

Lists LVD model part numbers and their descriptions for various HP ratings and configurations.

OptiSpeed Compressor Drive Details

Safety Shutdowns

Safety Shutdown Messages

Details various safety shutdown messages, their causes, and required reset procedures.

Cycling Shutdowns

Cycling Shutdown Messages

Lists and explains various cycling shutdown messages and their causes for the OSCD.

Warning Messages

Specific Warning Messages

Details specific warning messages, their causes, and how they affect the OSCD or Harmonic Filter.

VSD Frequently Asked Questions

Input Amps vs. Rated FLA

Chiller Not Slowing Down

Addresses why the chiller might not reduce motor speed, listing potential causes and conditions.