Name: Johnson Controls C450RCN-1C System 450 Reset Module, 2 Relay [Refurbished]
Brand: Johnson Controls
SKU: B2E-TRO-24471
Price: 59.52 USD
Availability: InStock

Description

. . . . . The Johnson Controls C450RCN-1C is a System 450 Series reset control module with two SPDT line-voltage relay outputs for On/Off control. Reset control modules provide the features of the standard System 450 control modules for temperature and humidity control and add three capabilities the standard models do not have: setpoint reset, real-time setback scheduling, and run-time balancing (equal run time across outputs) - the last being particularly useful with two outputs, where lead/lag duty can be rotated automatically to even out equipment wear.

System 450 is the Johnson Controls/PENN modular digital electronic control platform, designed to replace the older System 350 and System 27 ranges. A single control module can work stand-alone, or plug together with expansion modules to drive up to ten outputs from as many as three control sensors. Modules join with plug-together connectors so no field wiring is needed between them, and the assembly mounts on DIN rail or directly to a flat surface. Power comes either from a C450YNN power supply module within the assembly or from an external 24 VAC Class 2 supply. Setpoint reset lets the control setpoint be driven automatically from a second sensor - typically outdoor air temperature - so heating or cooling setpoints track ambient conditions, and the real-time clock allows scheduled setback periods.

* Brand / Manufacturer: Johnson Controls
* Model / Part Number: C450RCN-1C
* Series: Johnson Controls/PENN System 450 Series Modular Controls
* Product Type: Reset control module with relay output
* User Interface: Backlit LCD with four-button touchpad
* Relay Outputs: 2 x SPDT line-voltage relays
* Relay Contact Rating: 1/2 HP at 120/240 VAC, SPDT
* Reset Features: Setpoint reset, real-time setback scheduling, run-time balancing (equal run time)
* Power Consumption: 1.3 VA maximum
* Supply Power: C450YNN power supply module, or external 24 VAC (20 to 30 VAC), 50/60 Hz, 10 VA minimum, Class 2 (North America) / SELV (Europe)
* Sensor Inputs: Up to 3 control sensors; A99 PTC temperature, or 0 to 5 VDC humidity
* Setpoint Range (Temperature): -40°F to 250°F (-40°C to 121°C) with A99 sensor
* Maximum System Outputs: 10 (with expansion modules)
* Weight: 0.49 lb (0.22 kg)
* Mounting: DIN rail or direct surface mount
* Enclosure: Lexan 950
* Reference Documentation: System 450 Series Modular Control Systems with Reset Control Modules Technical Bulletin (LIT-12011842)
* Agency Compliance: cULus Listed, UL 60730-1, File E27734; FCC Part 15 Subpart B Class B; ICES-003 Class B; CE

Typical applications include outdoor-air-reset boiler water temperature control with two-stage firing, lead/lag pump or compressor rotation with equal run time, two-stage heating or cooling with scheduled night setback, and staged humidification/dehumidification with setback.. Johnson Controls. Johnson Controls. C450RCN-1C.

Warranty Information

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