Ordering information - PENN Controls - LIT-12012219 - A421ABD - A421AED - Electronic Temperature Control - A421 Off‐Cycle Defrost Models

A421 Series Electronic Temperature Controls with Off-Cycle Defrost Product Bulletin
Brand
PENN Controls
Product name
A421 Off‐Cycle Defrost Models
Document type
Product Bulletin
Document number
LIT-12012219
Revision date
2023-03-07
Language
English

Table 1 provides ordering information for standard A421 Series Electronic Temperature Control models available through most Johnson Controls or Penn authorized distributors. See Table 2 through Table 3 to order sensors, mounting hardware, and other accessories for installing A421 controls. Contact your nearest Johnson Controls or Penn distributor or sales representative to order these products. Contact your local Johnson Controls or Penn representative for more information on options available for high-volume purchase models with specific application requirements.

Figure 1. Typical passive defrost cycle behavior

Figure 2. Manual defrost only: behavior when dI is set to 0

Figure 3. Starting and stopping a dFt: behavior using SdF parameter and momentary contact switch

Table 1. A421 Electronic Temperature Control with Off-Cycle Defrost selection chart
Product code Description
A421ABD-02C Line-voltage Type 1 electronic temperature control with off-cycle defrost timer: Type 1 (NEMA), IP20 standard enclosure for DIN rail and surface-mount applications. Rated for 120/240 VAC. Includes integral timer for On/Off defrost cycle control. Includes A99BB-200C temperature sensor with 6.6 ft (2.0 m) cable.
A421AED-01C Line-voltage Type 4X electronic temperature control with off-cycle defrost timer: Type 4X (NEMA), IP66 standard enclosure for surface-mount applications. Rated for 120/240 VAC. Includes integral timer for On/Off defrost cycle control. Includes A99BB-25C temperature sensor with 9 7/8 in. (0.25 m) cable.
A421AED-02C Line-voltage Type 4X electronic temperature control with off-cycle defrost timer: Type 4X (NEMA), IP66 standard enclosure for surface-mount applications. Rated for 120/240 VAC. Includes integral timer for On/Off defrost cycle control. Includes A99BB-200C temperature sensor with 6.6 ft (2.0 m) cable.
Table 2. A99 Temperature Sensors selection chart
Product code1 Description
A99BA-200C Positive temperature coefficient (PTC) Temperature Sensor: Standard probe 2 in. (5.1 cm) with 6.6 ft (2.0 m) shielded polyvinyl chloride (PVC) cable; ambient operating temperature range: -40ºF to 212ºF (-40ºC to 100ºC)
A99BB-25C PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 9 7/8 in. (0.25 m) PVC cable; ambient operating temperature range: -40ºF to 212ºF (-40ºC to 100ºC)
A99BB-200C PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 6.6 ft (2.0 m) PVC cable; ambient operating temperature range: -40ºF to 212ºF (-40ºC to 100ºC)
A99BB-300C PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 9.8 ft (3.0 m) PVC cable; ambient operating temperature range: -40ºF to 212ºF (-40ºC to 100ºC)
A99BB-400C PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 13.1 ft (4.0 m) PVC cable; ambient operating temperature range: -40ºF to 212ºF (-40ºC to 100ºC)
A99BB-600C PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 19.7 ft (6.0 m) PVC cable; ambient operating temperature range: -40ºF to 212ºF (-40ºC to 100ºC)
A99BC-25C 1 PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 9 7/8 in. (0.25 m) high-temperature silicon cable; ambient operating temperature range: -40ºF to 248ºF (-40ºC to 100ºC)
A99BC-100C1 PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 3.3 ft (1.0 m) high-temperature silicon cable; ambient operating temperature range: -40ºF to 248ºF (-40ºC to 120ºC)
A99BC-300C1 PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 9.8 ft (3.0 m) high-temperature silicon cable; ambient operating temperature range: -40ºF to 248ºF (-40ºC to 120ºC)
A99BC-500C1 PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 16.4 ft (5.0 m) high-temperature silicon cable; ambient operating temperature range: -40ºF to 248ºF (-40ºC to 120ºC)
A99BC-1500C1 PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 49.2 ft (15.0 m) high-temperature silicon cable; ambient operating temperature range: -40ºF to 248ºF (-40ºC to 120ºC)
A99CB-200C PTC Temperature Sensor: Extended probe 6 in. (15.2 cm) with 6.6 ft (2.0 m) PVC cable; ambient operating temperature range: -40ºF to 212ºF (-40ºC to 100ºC)
A99CB-600C PTC Temperature Sensor: Extended probe 6 in. (15.2 cm) with 19.7 ft (6.0 m) PVC cable; ambient operating temperature range: -40ºF to 212ºF (-40ºC to 100ºC)
Table 3. Accessories for the A421 Controls
Product code Description
BKT287-1R 12 in. (305 mm) long DIN rail section
BKT287-2R 36 in. (914 mm) long DIN rail section
PLT344-1R Two end clamps for DIN rail sections
A99-CLP-1 Surface mounting clip for A99B and A99C Series Temperature Sensors
SHL10-603R Sun shield for A99B and A99C Series Temperature Sensors
BOX10A-603R PVC enclosure for A99B and A99C Series Temperature Sensors
WEL11A-601R Immersion well for applying sensor in fluid applications
1 When any A99 Series Temperature Sensor is connected to a standard A421 Control model, the range of displayed temperature values is -40ºF to 212ºF or -40ºC to 100ºC.