Electronic Single Stage
A421ABC-03C Johnson Controls electronic single stage thermostat using a Bimetallic Thermometer with a linear controller. Systems can be configured to include a Remote Sensor, a Variable Speed Blower in a high static pressure housing and a Reversing Damper. The 4 in 1 blower has an inlet in front and discharge in rear for immediate fan down on startup; quiet operation; integral air filter; speed is electronically controlled; it produces more air flow at lower motor speeds; low amperage starting motor; built-in positive pressure switch with
Johnson Controls A421ABC-03C Series Room Air Conditioner - 16,000 BTU Electronic Room Air Conditioner with Single Stage Heat Pump, No Remote Control and No Furnace Features: 16000 BTU cooling capacity
The A421ABC-03C Electronic Control is a single stage control with a built in programmable 24 hour clock for easy customization. This single stage control can display either set point or actual temperature and has a burst of output capacity up to 3 degrees Fahrenheit per second. When programmed for constant operation, AC power will automatically turn off when required by the thermostat to conserve energy. Johnson Controls electronic controls use proprietary technology to help ensure precise control and maximum comfort for your customers.
Features of the Johnson Controls A421ABC-03C Electronic Temperature Control
The A421ABC-03C is used to control the air-temperature of heating and cooling equipment. It can be configured as a two stage or a single stage unit, and has a choice of BACnet, Modbus RTU , or on/off digital signal inputs. Temperature control is provided by externally supplied 24 volts dc resistive wirewound element used on cooling systems and on/off solenoid valves (2/3/4) for heating systems, and directs the heating and/or cooling processes via any appropriate switching action.
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With a single stage Johnson Controls® Temperature Controller, you can cut cooling costs. This controller allows only one stage of cooling a unit a day and a specific time to start. It reacts to room temperature versus outdoor temperature or remote sensors, which means it costs less to operate. The A421ABC-03C is compatible with 100% R22, R410A and R32 refrigerants as well as 55 gallon capacity compressors.
The electronic A421ABC-03C is designed for use in single construction heating and air conditioning systems in residential, commercial, industrial, and marine environments. The A421ABC-03C replaces up to three separate controls in order to simplify the system. The Johnson Controls Internet Gateway provides monitoring, statusing, compatibility checking, downloading of maintenance files, Internet access to the user's private records, energy management services via www.weathertrends360.com, performance reports based on system monitored data, and Web-based alerts that are sent directly to the users personal email account automatically when high or low temperature thresholds are reached
Control the temperature of any room you choose. The A421ABC-3C is an electronic control which allows you to select a temperature setting between 60 and 90 degrees F, in 1 degree increments. Simply set the temperature you prefer with the up/down buttons on the front panel, then press the ON button to activate the thermostat.
This unit can be used as a stand alone replacement for 1 stage gas-fired systems or as a 2 stage replacement for 2 stage gas-fired systems. Through manual adjustment of 1 switch, these units can accommodate many natural and LP gases and multiple fuel types.
Circuit-breaker sized programmable thermostat automatically maintains temperature with one control.
Protect your family from cold or hot temperatures. The Johnson Controls A421ABC-03C thermostat allows you to select a temperature ranging from 55°F to 90°F and will automatically switch between heating and cooling when the temperature in the room gets too cold or too warm for comfort, while the control background glows red when the system is heating and blue while cooling.
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