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title: Chillers
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When to use: Packaged factory-assembled water-cooled and air-cooled liquid chillers for commercial, institutional, and industrial HVAC service. Covers centrifugal, screw, and scroll compressor machines from approximately 50 tons through 3,000 tons producing chilled water for comfort cooling and process cooling within the standard HVAC temperature range (typically 38°F to 55°F leaving chilled water). Includes the chiller package — compressor(s), evaporator, condenser (water-cooled shell-and-tube or air-cooled finned-coil with integral condenser fans), refrigerant circuit, oil management, microprocessor unit controller, integral power and control panel, and factory-mounted accessories. Both fixed-speed and variable-speed compressor drives are addressed.
− Not intended for: Absorption chillers (driven by steam, hot water, or direct-fired heat input rather than electric compressor); air-cooled refrigerant condensing units paired with field-installed evaporators; DX rooftop and split-system equipment with refrigerant evaporators ([[sync/rooftop-packaged-units]] where present); process chillers for industrial cooling at non-HVAC temperatures; low-temperature glycol industrial chillers below approximately 20°F leaving fluid temperature; modular skid-mounted chillers assembled in the field from separate components; and water-source heat pumps. The condenser water system, chilled water distribution piping, and cooling tower are covered separately — see [[sync/hvac-pumps]], [[sync/hydronic-piping]], and the cooling tower standard. Variable frequency drives external to the chiller package (where a starter is field-furnished) are covered in [[sync/hvac-variable-frequency-drives]].
+ Not intended for: Absorption chillers (driven by steam, hot water, or direct-fired heat input rather than electric compressor); air-cooled refrigerant condensing units paired with field-installed evaporators; DX rooftop and split-system equipment with refrigerant evaporators ([[sync/packaged-rooftop-units]] where present); process chillers for industrial cooling at non-HVAC temperatures; low-temperature glycol industrial chillers below approximately 20°F leaving fluid temperature; modular skid-mounted chillers assembled in the field from separate components; and water-source heat pumps. The condenser water system, chilled water distribution piping, and cooling tower are covered separately — see [[sync/hvac-pumps]], [[sync/hydronic-piping]], and the cooling tower standard. Variable frequency drives external to the chiller package (where a starter is field-furnished) are covered in [[sync/hvac-variable-frequency-drives]].
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default: "Manufacturer's installation, operation, and maintenance manual"
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