SUMMARY The attached PDF includes information needed to verify factory settings and/or field calibrate optional PLC controlled VFD condenser fan motors on air cooled condenser chiller models. MORE INFORMATION -None- APPLIES TO All air cooled chiller models with factory installed (optional) PLC controlled VFD condenser fan motors. RELATED DOCUMENTS VFD Condenser fan settings. Technical Bulletin […]
City Water Changeover / Economizer Power Open Spring Closed Valves
SUMMARY The attached PDF includes information needed for service of the JCI VA9208 power open spring return values. MORE INFORMATION The attached PDF includes information needed for service of the JCI VA9208 power open spring return values. APPLIES TO Legacy Chiller Systems optional auto city water change over panels and chillers equipped with Legacy’s Patented […]
IDEC – Control remote chiller and system pump Start Stop
SUMMARY Detailed information on how to remotely turn your chillers system pump or entire chiller on and off. RESOLUTION We have provided a PDF download file that describes how to the Idec I4 and I7 dedicated inputs to turn the chillers system pump (I4) or the entire chiller (I7) on and off remotely. APPLIES TO […]
Chiller Systems – Restart during winter conditions
SUMMARY This article covers chiller restart procedures when your air cooled process chiller has been off line or operating under low process loads during cold weather that can produce snow or ice. RESOLUTION Restart of an air cooled condenser during the winter can be a challenge as snow and ice tends to be very opportunistic. […]
Chiller Installation, Startup, and Maintenance (IOM Booklet)
SUMMARY The attached PDF includes information needed for installation, startup and maintenance of all Legacy Scroll series chillers. This information applies to all systems. MORE INFORMATION The attached PDF includes information needed for installation, startup and maintenance of all Legacy Scroll series chillers. APPLIES TO All Legacy Products with IDEC (PLC) controls. RELATED DOCUMENTS Legacy […]
Legacy ChillerGuard – Installation and Setup
SUMMARY Legacy ChillerGuard Installation and setup documentation RESOLUTION Legacy’s ChillerGuard remote IP device can be retrofit onto all model chillers shipped after 1-1-2009. For chillers shipped prior to 1-1-09, Legacy offers a retrofit that includes an upgraded micro-processor, sensors and pressure transducer cables. Chiller Guard FAQ: 1. Field Connection: There are three RJ-45 (Ethernet) connection […]
PSG – Control Remote Chiller and System Pump Start Stop
SUMMARY Detailed information on how to use commonly available parts to turn your chiller components on and off remotely. RESOLUTION We have provided a PDF download file that describes how to use commonly available parts to remotely start and stop your Legacy Chillers system pump as well as the entire chiller. Before proceeding, there are […]