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PENN Controls Products Catalog

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Table 164: P70, P72, and P170 Series Controls for high pressure applications selection chart Product code number Switch action Range psi (kPa) Differential psi (kPa) Pressure connection Max. working pressure P70AA-2C 36 in. cap. with 1/4 in. flare nut P170AA-2C 0 to 150 (0 to 1,034) Minimum 10 (69) Maximum 70 (483) 1/4 in. external flare connector 325 psig (2,241 kPa) P70AA-400C 36 in. cap. with 1/4 in. flare nut P170AA-400C SPST open low 100 to 470 (689 to 3,241) Minimum 35 (241) Maximum 200 (1,379) 1/4 in. external flare connector P70CA-400C 1 36 in. cap. with 1/4 in. flare nut P170CA-400C 1 Minimum 60 (414) Maximum 150 (1,034) 1/4 in. external flare connector P70DA-400C 1 36 in. cap. with 1/4 in. flare nut P170DA-400C 1 SPST open high 200 to 610 (1,379 to 4,206) Manual reset lockout 1/4 in. external flare connector 690 psig (4,757 kPa) Ammonia compatible models P70AA-119C SPST open low 50 to 300 (345 to 2,068) Minimum 20 (138) Maximum 120 (827) 400 psig (2,758 kPa) P70CA-5C 1 Minimum 60 (414) Maximum 150 (1,034) P70DA-2C 1 SPST open-high P70KA-7C Four-wire, two-circuit Line-M1 close-high Line-M2 open high 50 to 500 (345 to 3,448) Manual reset lockout 1/4 in. SS internal NPT 525 psig (3,620 kPa) 1 UL Listed as refrigeration pressure limiting controls 2 Compatible with R410A refrigerant. Note: To order models not listed in the selection chart, please contact Johnson Controls/PENN ® Refrigeration Application Engineering at 1-800-275-5676. Technical specifications Table 165: Single pressure controls switch action, low event, high event, and models Switch and action Low event High event Models SPST open low Cut-out (opens line to M1) Cut-in (closes line to M1) P70A, P70B, P170A SPST open high Cut-in (closes line to M1) Cut-out (opens line to M1) P70C, P70D, P170C, P170D SPDT Opens 1 to 2 and closes 1 to 3 Closes 1 to 2 and opens 1 to 3 P70E, P70F Four-wire, two-circuits, 1 N.O., 1 N.C. open low Cut-out (opens M2 to line and closes M1 to line) Cut-in (closes M2 to line and opens M1 to line) P70G, P70H Four-wire, two-circuits, 1 N.O., 1 N.C. open high Cut-in (closes M2 to line and opens M1 to line) Cut-out (opens M2 to line and closes M1 to line) P70J, P70K, P170K DPST open low Cut-out (opens M1 to line and M2 to line) Cut-in (closes M1 to line and M2 to line) P72A, P72B DPST open high Cut-in (closes M1 to line and M2 to line) Cut-out (opens M1 to line and M2 to line) P72C, P72D 143 Refrigeration Products Catalog

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