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PENN Controls Products Catalog

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• High and low pressure cutout control • Staged compressor control • Cooling tower fan speed control based on high- side pressure • Direct speed control of electronically commutated (EC) condenser fan motors (C450CPW-400 model) Other pressure control • Relief damper and fan control for building pressurization • Constant static pressure control Humidity control • On/Off humidification and dehumidification control • Proportional humidification and dehumidification control • Multistage humidification and dehumidification control • Humidity monitoring and alarming Multipurpose control • Temperature and pressure based refrigeration rack control • Temperature and humidity control of wine cellars and greenhouses • Temperature, humidity, and static pressure control of clean rooms and greenhouses • Dehumidification with reheat control Reset control • Boiler supply water temperature reset control based on outside air temperature • Chiller supply water temperature reset control based on outside air temperature • VAV zone temperature control based on outside air temperature • Humidity reset based on outside air temperature • Staged applications with run-time balancing • Real-time Occupied/Unoccupied Setback High input signal selection • Pressure-based fan speed or fan cycling control on multi-circuit condensers • Temperature-based fan speed or fan cycling control on multi-circuit condensers Differential control • Air and fluid pump-flow monitoring and alarming • Air and fluid filter status monitoring and alarming • Chiller barrel flow monitoring, control, and alarming • Solar air and water heating applications Note: Communications modules add network communication to any application of your choosing, except those requiring reset, setback, or EC motor control. Table 305: System 450 Control Module Capabilities System 450 Control Modules Standard Communications Reset Hybrid Application Specific Control by ________ C450CPN-4C C450CQN-4C C450CBN-4C C450CCN-4C C450CEN-1C C450CRN-1C C450RBN-3C C450RCN-3C C450CPW-400C C450CCU-4C Designed for walk-in coolers, freezer, and large display cases Controlled Condition Temperature X X X X X Pressure X X - X X Humidity X X X X - Combination of Conditions X X X X - Control Capabilities On/Off Relay Control X X X X X 293 Refrigeration Products Catalog

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