SUMMARY Article covers dual chiller operation with remote VPN access – By Legacy Chiller Systems. RESOLUTION Article and download PDF provides details on network configuration for automatic lag/lead between two Legacy process chillers equipped with IDEC controls. Customers should use this configuration when remote, secure VPN access and control of process chiller is needed. NOTE: […]
Service Bulletin – Temperature Thermisters
SYMPTOMS Temperature thermisters not not reading the correctly. Digital thermometer reading is more then 3F off from the reading showing on the IDEC touch screen. CAUSE Possible loose physical connection between the pipe and the probe, interference from high voltage electrical power lines run to close to the leads, defective sensor or defective IDEC thermistor […]
PLC/HMI Software update Procedure for Single and Dual Compressor Models
SUMMARY This article contains instructions and downloadable software for updating Legacy chillers equipped with the IDEC Pentra PLC and touch screen. RESOLUTION Important information: If your chiller of PSG retrofit kit was manufactured prior to 4-28-16, please check your chillers control version located on the lower left of your home screen. If you are running […]
Sales Bulletin – – Introduction of NEW control architecture for 2013
SUMMARY Article introduces NEW PLC and Touchscreen available on ALL Legacy Chiller models after March 1st of 2013. APPLIES TO All PAC, PACT, FPACT, VPACT models manufactured after March 1st of 2013. RELATED DOCUMENTS NEW Legacy Chillers Architecture – 2013
Warranty Claim Form
SUMMARY Legacy recommends taking photos. Submitting digital photos can speed claim processing significantly. RESOLUTION Legacy Customers needing reimbursement for a replacement part, labor claim (or both) should take the following steps provided the Legacy Product is covered under Legacy’s Limited Manufactures Warranty: 1. Download a claim form using the link below and print a copy. […]
Condenser Fan Motor Run Capacitor Failure
SYMPTOMS Air cooled condenser fan motor run capacitor has failed on a 480v-3ph-60hz (T4) chiller system. This can cause the condenser fan motor to not spin normally and can also cause malfunctions with the optional ICM variable fan speed control. A slow down or stoppage of any condenser fan motor can also cause compressor high […]
PSG – Microprocessor “ERR” issues
SYMPTOMS Persistent PSG microprocessor control “Err” (top screen) with “TSO” or “TSI” showing on bottom screen. This bulletin also covers a “32” (top screen) and “32” (bottom screen) error messages. CAUSE Possible harmonic interference from high voltage power wires being 10 inches (or less) from the back of the microprocessor or the temperature sensor wires. […]