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Where reheating is permitted by other parts of this standard, zones that have both supply and return/exhaust air openings greater than 6 ft above floor shall not supply heating air more than 20°F above the space temperature set point.
Exceptions to
  1. Laboratory exhaust systems that comply with Section
  2. During preoccupancy building warm-up and setback.

Related Code Sections

1002.2.2 Boilers, Water Heaters and Pressure Vessels, Temperature Limitation
), a temperature-actuated mixing valve that conforms to ASSE 1017 shall be provided to temper the water supplied to the potable hot water distribution system ...