PENN Controls Products Catalog

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A19 Series Hot Water Temperature Control (Well Immersion) Description The A19 Series Temperature Controls are a universal replacement control for open high or single-pole, double-throw (SPDT) applications. The control is furnished with a well assembly for 1/2 in. tapping. Refer to the A19 Series Hot Water Heating Controls Well Immersion Product Bulletin (LIT-125025) for important product application information. Features • liquid-filled element provides rapid response to temperature change • adjustable differential • universal replacement Applications This operating control is ideal for hot water boilers. Selection charts Table 12: A19 Series Hot Water Temperature Control (Well Immersion) selection chart Product code number Application Switch action Range °F (°C) Differential F° (C°) Well connector size–NPT Range adjuster Max. bulb temp. °F (°C) A19ABC-11C 1/2 in. 250 (121) A19ABC-12C Open high (R-B) Open low (R-Y) Single-Pole, Double-Throw (SPDT) 100 to 240 (38 to 116) 6 to 24 (3 to 13) 1/2 in.; 8 ft. capillary Convertible 290 (143) A19ADB-2C High temperature lockout Single-Pole, Single-Throw (SPST) Open high with lockout 100 to 240 (38 to 116) Manual reset (locks out high) 1/2 in. Knob 250 (121) Table 13: Replacement parts Product code number Description CVR28A-617R Concealed adjustment cover CVR28A-618R Visible scale cover KNB20A-602R Knob kit 20

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