A52x Series Refrigeration Controller with Adaptive Defrost Installation Instructions
10
Notes:
• Do not use abrasive cleaning powders
• Do not use abrasive cleaning pads or brushes.
• Do not use solvents or cleaning solutions that can damage plastic.
Ordering Information
Table 10 on page 10 contains information about the A52x Controller accessories. For more information about A99B
Temperature Sensors, refer to the A99B Series Temperature Sensors Product/Technical Bulletin (LIT-125186) or
contact your nearest Johnson Controls/PENN distributor or sales representative.
Technical Specifications
Table 10: A52x Controller Accessories
Product Code Description
BKT287-1R 305 mm (12 in.) section of 35 mm DIN rail
BKT524-1K Bracket for mounting A52x Controller to 35 mm DIN rail, includes five mounting screws
A52x Refrigeration Controller with Adaptive Defrost
Product A524 / A525
Power Consumption 1.8 VA maximum
Supply Power 84 VAC to 260 VAC, 50/60 HZ, 10 VA maximum
Ambient Conditions Operating: -30C° to 60C° (-22F° to 140F°), 0 to 95% RH non-condensing
Shipping and Storage: -40C° to 85C° (-40F° to 185F°), 0 to 95% RH non-condensing
Temperature Sensing
Range
-40C° to 50C° (-40F° to 122F°)
Input Signal (Sn1 and
Sn2)
A99B PTC temperature sensors or
TS-6340K-F00 NTC temperature sensor
Input Signal (UI4 and UI5) 0–10 VDC input for leak detector status or dry contact binary input with a switch wired between
U14 or U15 and C
HVBIN Signal 120 VAC or 240 VAC
Sensor Offset Range ± 3ºC or ± 5ºF
RS485 MODBUS Max. distance is 100 ft., 9.6k baud is the default but 19.2k is also supported
External USB Use a standard USB flash drive to extract HACCP data or upgrade firmware revision for future
upgrades
Enclosure IP65 watertight, corrosion-resistant, high-impact thermoplastic
Dimensions (H x W x D) 196.8 mm (7.75 in.) x 190.5 mm (7.5 in.) x 82.6 cm (3.25 in.)
Weight 1.1 kg (2.4 lb)
Compliance United States: cULus Listed; UL60730-1, UL60730-2-9, File SA516;
FCC Compliant to CFR47, Part 15, Subpart B, Class B limits
Canada: cULus Listed; CAN/CSA-E60730-1:15, CAN/CSA-E60730-2-9:15, File SA516;
Industry Canada (IC) compliant to Canadian ICES-003, Class B limits
Europe: CE Mark – Johnson Controls declares that this product is in compliance with the
essential requirements and other relevant provisions of the EMC Directive and Low Voltage
Directive; RoHS Directive
Australia and New Zealand: RCM Mark, Australia/NZ emissions compliant
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