Refrigerant piping diagram connecting a heat pump or condensing unit to a fan coil or air conditioning unit. The circuit incorporates a filter and dryer with a normally closed bypass line, an inline strainer, sight glasses, solenoid valves, and thermal expansion valves. Flexible connections are included typically on the lines to absorb equipment vibration.
RS RS FILTER / DRYER RL RS N.C. BYPASS FLEX CONN. (TYP.) SOLENOID VALVE SIGHT GLASS TXV VALVE STRAINER FAN COIL OR AC UNIT HEAT PUMP OR CONDENSING UNIT
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