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Johnson Controls Digital Temperature...
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Product Description:
THE A421 SERIES CONTROLS ARE SINGLE STAGE LOW-VOLTAGE ELECTRONIC TEMPERATURE CONTROLS WITH A SINGLE-POLE DOUBLE-THROW (SPDT) OUTPUT RELAY. THESE CAN BE USED TO CONTROL A WIDE VARIETY OF SINGLE-STAGE REFRIGERATION OR HVAC EQUIPMENT WITH AN AMBIENT TEMPERATURE RANGE OF -40 TO 212°F. MODEL A421GEF-01C FEATURES TYPE 4X (NEMA) IP66 WATERTIGHT CORROSION-RESISTANT ENCLOSURE SUITABLE FOR SURFACE MOUNT AND RATED FOR 24 VAC CLASS 2 SAFETY EXTRA LOW VOLTAGE. INCLUDES A99BB-25C PTC TEMPERATURE SENSOR WITH A 2 IN. STANDARD PROBE AND 9-7/8 IN. PVC CABLE. FEATURES UL STYLEMARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX; CONTROL FRONT PANEL LCD BASIC AND ADVANCED PROGRAMMING MENU ON/OFF TEMPERATURE ADJUSTMENT SWITCH-ACTIVATED TEMPERATURE SETBACK ADJUSTABLE ANTI-SHORT CYCLE DELAY ADJUSTABLE SENSOR OFFSET OPTIONAL RESTRICTED ADJUSTMENT MODE SENSOR FAILURE MODE |
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