Mechanical · M-2MQ4N

Stacked Cooling Coil Piping and Flexible Connection Diagram

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A piping configuration for a doubled stacked cooling coil connects to chilled water supply and return lines. Flexible connections are located on the piping outside the unit skin when connection points fall inside. The assembly incorporates union or flange connections, butterfly valves with memory stops for balancing, two-way control valves, and circuit balancing valves. Additional components include a strainer with a blowdown valve, test plugs typically placed along the circuit, a three-quarter-inch drain with a ball valve, and a manual air vent mounted externally. Pipe sizes are determined per plan, and a similar diagram applies to stacked heating coils.

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