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PENN Controls Products Catalog

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Basic and Advanced programming menu Provides two levels of parameter adjustment and control. You can set up advanced features in one menu and easily adjust basic parameters in the other menu. On/Off temperature adjustment Select the temperature values at which the relay turns On and Off, which automatically defines the Heating or Cooling mode of operation. Switch-activated temperature setback Shift the On or Off temperature by an adjustable setback value. When a user-supplied switch closes the binary input control circuit, the control operates at the defined setback temperatures. Adjustable anti-short cycle delay Select the minimum time the output relay remains off before the next on cycle; avoiding short cycling, hard starts, and nuisance overload outages on compressors and other inductive applications. Adjustable sensor offset Adjust the displayed temperature to the actual sensed temperature. Optional restricted adjustment mode Restrict the On or Off adjustment to your defined temperature range. Sensor failure mode Select the relay On or Off state in the event of a sensor or sensor wire failure. Backlight brightness level Adjust the LCD backlight intensity. Ordering information Contact your nearest Johnson Controls or PENN distributor or sales representative to order sensors, mounting hardware, and other accessories used to install A421 Controls. Contact your local Johnson Controls or PENN representative for more information on options available for high- volume purchase models with specific application requirements. Selection charts Table 64: A421 Series Standard Electronic Temperature Control Product code Description A421ABC-02C Line-Voltage Type 1 Electronic Temperature Control: Type 1 (NEMA), IP20 standard enclosure for DIN rail and surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-200C temperature sensor with 6.6 ft (2.0 m) cable. A421ABC-03C Line-Voltage Type 1 Electronic Temperature Control: Type 1 (NEMA), IP20 standard enclosure for DIN rail and surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-300C temperature sensor with 9.75 ft (3.0 m) cable. A421ABC-04C Line-Voltage Type 1 Electronic Temperature Control: Type 1 (NEMA), IP20 standard enclosure for DIN rail and surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-400C temperature sensor with 13.1 ft (4.0 m) cable. A421ABC-06C Line-Voltage Type 1 Electronic Temperature Control: Type 1 (NEMA), IP20 standard enclosure for DIN rail and surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-600C temperature sensor with 19.5 ft (6.0 m) cable. A421AEC-01C Line-Voltage Type 4X Electronic Temperature Control: Type 4X (NEMA), IP66 watertight enclosure for surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-25C temperature sensor with 9 7/8 in. (0.25 m) cable. A421AEC-02C Line-Voltage Type 4X Electronic Temperature Control: Type 4X (NEMA), IP66 watertight enclosure for surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-200C temperature sensor with 6.6 ft (2.0 m) cable. A421GBF-02C Low-Voltage Type 1 Electronic Temperature Control: Type 1 (NEMA), IP20 standard enclosure for DIN rail and surface-mount applications. Rated for 24 VAC Class 2, safety extra low- voltage. Includes an A99BB-200C temperature sensor with 6.6 ft (2.0 m) cable. 63 Refrigeration Products Catalog

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