Select 1 of 4 paragraphs below. Forward curved, centrifugal, driven by indoor fan motor. Propeller type, driven by indoor fan motor. If Drawings are explicit enough, these requirements may be reduced or omitted. Piping installation requirements are specified in other Division 15 Sections.
Drawings indicate the general arrangement of piping, fittings, and specialties.
Retain subparagraph below for units with gas-fired heating. Connect gas piping to heat exchanger to gas train inlet, with union. Retain subparagraph below for units with hot-water coils. Provide shutoff valve on supply line and balancing valve on return line. Provide air vent, complete with stop valve, at high points.