![]() ![]() 1 2 3 In the event of a power supply interrupt, the unit restarts automatically without the need for an external command. ![]() Figure 1 CAUTION: Maintain the correct polarity when connecting the power supply to the boards, otherwise the boards may be 4 damaged. Pro-Dialog controls compressor start-up needed to components and voltages and the installation site (elevatģ - HARDWARE DESCRIPTION 3.2 - Electrical supply to boards 3.1 - General All boards, except the PD-RCPM board, are supplied from a common 24 V a.c. ġ - SAFETY CONSIDERATIONS 2 - GENERAL DESCRIPTION 1.1 - General 2.1 - General Installation, start-up and servicing of equipment can be Pro-Dialog is a system for controlling single or dual-circuit hazardous if certain factors particular to the installation are not 30RA/RY air-cooled liquid chillers or air-to-water 30RH/RYH considered: operating pressures, presence of electrical heat pumps. TABLE OF CONTENTS 1 - SAFETY CONSIDERATIONS.4 1.1 - General. ![]()
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