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Chilled Water Staged Chilled Water SCW Series Features and Specifications
Installation, Operation and Maintenance Manual for Chiller models SCW and MCW - using Hydro-Matic or Honeywell Controls
Features
High Quality Components
• Seawater side of condenser coils are made of cupronickel, and refrigerant shells are copper (NOT steel) for maximum efficiency and corrosion resistance.
• Compact copper brazed, stainless steel plate exchangers are designed for maximum efficiency in a confined space.
• Computer matched components provide maximum cooling/heating capacity.
• All chillers use thermal expansion valves (TXV). Unlike the capillary tubes, TXVs automatically adjust to changing load requirements to maintain optimum performance.
• Each stage is individually protected by a circuit breaker, flow switch, freeze protection, water temperature high limit, high pressure refrigerant switch, and low pressure refrigerant switch. These safeties are in addition to the compressor thermal overload.
Innovative Design
• Compact base design provides flexibility in engine room layouts.
• Multiplexed modules offer precise BTU requirements for any application.
• Lightweight, aluminum construction enhances ease of installation while providing corrosion resistant durability.
• Complete control circuit provides multiple fail safes for system protection.
• Vertically mounted units are available.
Individual Refrigerant Circuits
• Redundant design assures cooling if one circuit malfunctions.
Serviceability
• All compressors accessed from front of condensing unit ensuring easy change out.
Quality Assurance
• Each unit is pre-charged, load tested and calibrated at the factory
• Charge Guard ® protection provides sealed access ports, ensuring environmental protection and system integrity.
• All units meet or exceed applicable ABYC and U.S. Coast Guard regulations.
Product Description
The staged Chilled Water Units are available in capacities ranging from 48,000 to 900,000 BTU/H. SCWs are available in single phase or three phase, 50Hz or 60Hz, and all standard voltages (208, 230, 380, 460 VAC). Multiple compressors and refrigerant circuits are incorporated to provide minimal power consumption versus load demands, as well as redundancy throughout the unit. Each refrigerant circuit is hermetically sealed and factory pre-charged with R-22. Each condensing unit is monitored and protected with freeze controls, high limit switches, high and low aquastats, timers and on-board fuses or breakers.
All access ports to the refrigerant system are protected with CHARGE GUARD®, a factory installed seal, ensuring system integrity from shipping through final installation.
Condenser coils are constructed with cupro-nickel to provide high corrosion resistance. Unique stainless steel evaporator plates are designed for maximum efficiency of heat transfer. SCW’s can be built with circulation pump mounted in the chiller frame. Frames are welded with marine grade aluminum alloy, primed, then finished with a corrosion resistant epoxy.
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