P72DA-1C Johnson Controls Pressure Control

Datasheet

Selection Sheet

The Johnson Controls P72DA-1C DPST Pressure Control; 50/450# MANUAL RESet 36″ CAP 1/4″ FLARE; Two Pole High Pressure Control, DPST, Open High Close Low, 50 Psi to 450 Psi, Lockout ( Requires Manual Reset ) Differential, 36″ Capillary with 1/4″ Flare Nut, 525 Psi Max Bellows Overpressure, Includes Universal Mounting Bracket, “All Range” for R-12, R-22, R-134A, R-500 and R-502

The P72 Series of controls employs a set of DPST contacts that are opened and closed by the pressure actuated bellows. The heavy duty load-carrying contacts provide direct control of motors having integral line-interrupting overload protectors up to three horsepower. See Electrical Ratings below. Starter is unnecessary. Primarily used on air-conditioning and refrigeration applications but also used to control air, water, glycol, and lube oil pressure.

Features

• full adjustability for all non-corrosive refrigerant pressure applications
• adjustable differential meets the most demanding applications
• direct reading scale

Accessories

• includes a universal mounting bracket

Application Advantages

• control of polyphase motors without use of magnetic starters where protection against overloading and single phasing is otherwise provided
• two separate control circuits necessary for the control of multiple systems
• one set of contacts break the “hot” line when wired as a two pole switch in single phase circuits
• control of two separate load circuits
• automatic control of heavy electrical loads