An LED indicates the output relay's on and off status. The A421 Control with Defrost allows you to set up regular, passive defrost periods of 1 minute to 99 minutes. . . The A421 with Defrost Control is typically used to provide both temperature control and adjustable, timed, passive defrost cycles on m edium temperature cooling applications such as reach-in boxes, display cases, and walk-in coolers. Includes an A99BB-200C … The A421 Control with Defrost allows you to set up regular, passive defrost periods of 1 to 99 minutes. You can also start or stop a defrost off-cycle in two ways: using the three-button touchpad on the Advanced Menu or connect a momentary switch to the Binary Input (BIN). Parts included Each A421 Control ®includes a Johnson Controls® or PENN A99 Series temperature sensor. . h�bbd```b``�"��H�� �UD2k��j0�L>��@$�F0{=�d���H�V�x(�d0��H2����``bd`���8H����/@�?���� ��: The A421 with Defrost Control is typically used to provide temperature control and adjustable, timed, passive defrost cycles on medium temperature cooling applications such as reach-in boxes, display cases, and walk-in coolers. A421 Off‐Cycle Defrost Model doctype Installation Guide docpartnumber 24-7664-3035 docrev D revised_modified 2018-11-13. Temperature Controls with Off-Cycle Defrost. . endstream endobj 134 0 obj <>stream pack: 1. product sold out. A421 Series Standard Electronic Temperature Controls with Power Cords Installation Instructions Refer to the QuickLIT website for the most up-to-date version of this document. 984 0 obj <>/Filter/FlateDecode/ID[<56BAD97F670A627FD928AA5B31DEC5A4>]/Index[965 90]/Info 964 0 R/Length 107/Prev 589286/Root 966 0 R/Size 1055/Type/XRef/W[1 3 1]>>stream . The A421 Controls are available in 120 VAC and 240 VAC models. endstream endobj startxref @�AR{h�b.P���{��V7� h޴�M�@�������Y�D(:v��x�. Elektronisches Thermostat A421 Anwendung Die elektronischen Thermostate A421 bieten eine einstufige elektronische Temperaturregelung durch ein Ausgangsrelais vom Typ 1-poliger Wechselkontakt. Models with a control range of … An LED indicates the On/Off status of the output relay. The defrost interval can range from 2 to 24 hours, or be set to 0 (no defrost interval). It offers a wide range of options that allow for customized control functions. Includes integral timer for off-cycle defrost control. . universal defrost thermostat with thermal fuse. 1054 0 obj <>stream (NEMA), IP20 (CE), high-impact plastic enclosures. This A421 Control with Defrost also provides sensor offset, temperature setback, adjustable anti-short cycle delay, and a restricted user adjustment mode. Important: Use this A421 Series Electronic Temperature Control only as an operating control. h޴VmK�0�+�.�d�������"�qp�}�Z�����w���t�nu���&�N�-ϓ�褴2ƫ�� R-53 MR Series Defrost Control Modules . A421 Off‐Cycle Defrost Models doctype Product Bulletin docnumber LIT-12012219 revised_modified 2018-12-03. An LED indicates the output relay's On/Off status. p>a���&�N�$>m"w@}�N8Qסm�E�hh�H���;��v_�/,LJ�S� ��� We have 2 Penn A421 Series manuals available for free PDF download: Installation Manual, Installation Instructions Manual Penn A421 Series Installation Manual (29 pages) Temperature Controls with Off-Cycle Defrost h�b```"{��� �a�s\`RRRrQP`���٧��-w�� �6p:w. A Light-Emitting Diode (LED) indicates the controls output relay On/Off status. A421 Controls feature a backlit LCD with adjustable brightness and three-button touchpad interface that can be set up to restrict user adjustments. 132 0 obj <>stream %PDF-1.5 %���� This video shows the proper way to test your defrost thermostat. %%EOF The defrost interval can range from … View and Download Penn A421 Series installation manual online. The A99B Series Temperature Sensors are passive PTC (Positive Temperature Coefficient) sensors. Brother; Canon; Casio; Cisco; Craftsman; D-Link; Dell; Electrolux; Epson; Frigidaire; Fujitsu; GE; Haier; Hitachi; Honda; Related Manuals for Penn A421 Series . There is a lot of misinformation on testing the defrost thermostat. Controller Penn A421ABD Series Installation Instructions Manual 20 pages. fits various makes and models. � ��^�q��) �K;D?����~���2-@O���;���!�1H1���c�sP?�X-�Հ��7� S���!� z �Kie/V@h{�*Y���w�L;�YH����# �H���(�g���@\�����3ʂJ��� �q��uB� ۖ�+���(s ��K�W$����U�=����~��9#*�8��'N���xmo�V�����"kz��[l~107k�l\����2��ã���u�2ۧ����r� ,L�&M�4˥a\qX0ފ���p�������>����h�`,�q׻0'���t�In)�Y����ה�f��ǧA�w�#��l�ⰼ� �-�~q����O���e�H���N�$ߗ[�'� �u+� Replacement/alternate temperature sensor probes for use with the A421 series digital thermostats. %PDF-1.6 %���� A421 Series control unit pdf manual download. 0 endstream endobj 135 0 obj <>stream See A99 whirlpool double door fridge thermostat. The A421 controls are available either in Type 1. A421 Electronic Temperature Control with Off-Cycle Defrost Manage cooling, defrost, alarms, communications and costs with the A421 refrigeration controller. . part no: cad2015. 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