• Uses standard Echelon® LonMark Unit Ventilator functional profile for openness and interoperability with Lon Mark devices.
• Applications include unit ventilators with up to two stages heat/cool; floating heat/cool/economizer, pulse width modulating (PWM) heat/cool/economizer; ASHRAE Cycles I, II, III.
• Two unused digital outputs can be used as free points controlled by the network for lighting, exhaust fan.
• Can be used for indoor air quality control using an external sensor/control and economizer minimum position reset.
• Provides optional energy-saving setpoints for heating/cooling in unoccupied/occupied and standby modes.
• Optional control sequence shutdown via window/door open digital input.
• On-board network jacks for quick commissioning and troubleshooting using the E-Vision configuration tool.
• On-board status LED.
• Free topology transceiver (FTT) for flexible installation.
• UL94-5V flame-retardant construction.Fan Coil Unit Controller, 2 Heat / 2 Cool, Small Sytems (<20 I/O Points)| Application Size | 2 Heat / 2 Cool |
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| I/O Count | 8 Digital Outputs (triac), 2 Analog Inputs (resistive), 2 Analog Inputs (voltage), 4 Digital Inputs |
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| Overview | W7753A is a direct digital controller for unit ventilators with staged, floating, or pulse width modulation output using pre programmed heating, cooling, economizer, and ASHRAE cycles I, II, or III algorithms. |
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| Setpoint Temperature Range (F) | 55 F to 85 F |
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| Setpoint Temperature Range (C) | 13 C to 29 C |
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| Used With | See Application Selection Guide (63-7044) |
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| Application | Unit Ventilator |
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| Network Communications | LonWorks Bus |
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| Commissioning Software | LNS Plug-in |
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| Output Type | Staged On/Off, Floating, Pulse Width Modulation |
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| Dimensions (in.) | 5 5/8 in. high x 6 in. wide x 2 1/8 in. deep |
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| Dimensions (mm) | 143 mm high x 152 mm wide x 54 mm deep |
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| Shipping Temperature Range (F) | -40 F to +150 F |
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| Shipping Temperature Range (C) | -40 C to +65 C |
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| Approvals, Underwriters Laboratories Inc | UL 916 |
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| Approvals, Federal Communications Commission | FCC part 15 Class B requirements |
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| Comments | One T7770 wall module input |
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Product Family
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