A419 johnson manual

On/Off status. The A controls are available in 24 VAC or / VAC powered models. The A controls have heating and cooling modes, adjustable setpoint and differential, an adjustable anti-short cycle delay, and a temperature offset function. The setpoint range is to °F ( to °C). The controls feature remote sensing. The A control’s front-panel, LCD, LED, and the A control functions are described below. See the Adjustments section for instructions on setting up and adjusting the A control. A Control Front-Panel The front panel of the A control has a three-button touchpad and LCD for adjusting control function.  · The A Electronic Temperature Control is a. single-stage, electronic temperature control with a. Single-Pole, Double-Throw (SPDT) output relay. The. control features a lockable, three-button touchpad for. setup and adjustment and a Liquid Crystal Display. (LCD) which displays the sensed temperature and. other control functions.

The A control may be set to run the equipment continuously or to shut it down if the sensor or sensor wire fails. When a failure is detected the LCD flashes SF alternately with OP if the sensor circuit is open, or SF and SH if the sensor circuit is shorted. Johnson Controls A Troubleshooting Guide. Johnson Temperature Control A series can be used to control a wide variety of single-stage HVAC or refrigeration equipment. Typical applications include: Retail stores display freezers, walk-in coolers, and reach-in coolers. Space and return air temperature control. Supermarket display cases for products. illustrations when installing an A control. Parts Included. Pre-wired cords with plug and receptacle ends are provided for quick and simple installation. Each A control includes a Johnson Controls/PENN A99 temperature sensor. The sensor may be removed and replaced with any compatible Johnson Controls®.

Please retain these instructions and the A Series instruction set (Johnson Controls use AAEC within) for future reference. GHTJ Thermostatic. Apr Johson A error code- lost my manual. seems to reset itself..? the manual says to see troubleshooter section, Fried my Johnson. A Temperature Controls Instruction Manual. The Johnson AABC-1C is a /V single stage temperature control similar to the ETC with a few.