SUMMARY This article provides you with detailed information about chiller system microprocessor programming and review. We provide you with everything you need to know about the PSG microprocessor controller. SYMPTOMS Need to review or update the programming of chillers microprocessor controller CAUSE When adding glycol to the chiller loop or in some instances during startup […]
Legacy Chiller System Power Problems – chiller shutdowns
SUMMARY This article describes how incoming power problems to your Legacy Chiller may cause intermittent chiller shutdowns. This article shows you how to change your factory settings to make your chiller less sensitive to building power anomalies. SYMPTOMS Intermittent trips of power monitor or phase monitor causes compressor to shut down and may cause an […]
How to Safely Fill a Chiller System Tank
SUMMARY This article explains how to safely fill a chiller system tank. It covers the standard PACT,PWCT,EST sections on the chiller. SYMPTOMS Need to fill a PACT,PWCT,EST tank section on chiller. RESOLUTION Procedure outline: To safely fill the PACT/PWCT stainless steel water storage tank. MORE INFORMATION See attached service bulletin RELATED DOCUMENTS Tank fill bulletin
Chiller Problems – Microprocessor Low Pressure error
SUMMARY This article describes how to fix a chiller system that, after startup, has a stopped compressor and a low pressure error. SYMPTOMS Low pressure (Lo1 or lo2) error message on microprocessor controller. After power up and compressor start, compressor stops before reaching the SP1 or SP2 set point and the micro processor indicated a […]
Chiller Problems – Microprocessor Low Flow error
SUMMARY This article explains how to fix your chiller when the compressor won’t run and there is a microprocessor low flow error. SYMPTOMS Low flow error message on microprocessor controller. Compressor will not run. CAUSE Micro-Processor “Low Flo” faults can be caused by: 1. Evaporator flow issues related to your pump. 2. Evaporator flow issues […]