SECTION 23 21 23 HYDRONIC PUMPS SPEC WRITER NOTES: 1. Use this section only for NCA projects. 2. Delete between // // if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraph. 3. Ensure that a power circuit is shown for each pump. 4. Refer to CD-54 “Natural Disasters Non-Structural Resistive Design” for bracing of pumps in seismic and hurricane areas. 5. For seismic restraints requirements see specification Section 23 05 41, NOISE VIBRATION CONTROL FOR HVAC PIPING EQUIPMENT and Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL COMPONENTS. 6. Show input/ output points for pumps on control drawings. 7. Coordinate with VA standard details all equipment and support vibration isolation requirements. Standard Details can be found at: a. SD232123-01 In-Line Pumps-Connections b. SD232123-02 Single Suction Floor-Mounted Pumps Connections with Flexible Connectors c. SD232123-03 Single Suction Floor Mounted Pumps - Connection with Mechanical Couplings PART 1 GENERAL 1.1 DESCRIPTION A. Hydronic pumps for Heating, Ventilating and Air Conditioning. B. Definitions: 1. Capacity: Liters per second (L/s) (Gallons per minute (GPM)) of the fluid pumped. 2. Head: Total dynamic head in kPa (feet) of the fluid pumped. 3. Flat headcapacity curve: Where the shutoff head is less than 1.16 times the head at the best efficiency point.
SECTION 23 21 23 HYDRONIC PUMPS SPEC WRITER NOTES: 1. Use this section only for NCA projects. 2. Delete between // // if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraph. 3. Ensure that a power circuit is shown for each pump. 4. Refer to CD-54 “Natural Disasters Non-Structural Resistive Design” for bracing of pumps in seismic and hurricane areas. 5. For seismic restraints requirements see specification Section 23 05 41, NOISE VIBRATION CONTROL FOR HVAC PIPING EQUIPMENT and Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL COMPONENTS. 6. Show input/ output points for pumps on control drawings. 7. Coordinate with VA standard details all equipment and support vibration isolation requirements. Standard Details can be found at: a. SD232123-01 In-Line Pumps-Connections b. SD232123-02 Single Suction Floor-Mounted Pumps Connections with Flexible Connectors c. SD232123-03 Single Suction Floor Mounted Pumps - Connection with Mechanical Couplings PART 1 GENERAL 1.1 DESCRIPTION A. Hydronic pumps for Heating, Ventilating and Air Conditioning. B. Definitions: 1. Capacity: Liters per second (L/s) (Gallons per minute (GPM)) of the fluid pumped. 2. Head: Total dynamic head in kPa (feet) of the fluid pumped. 3. Flat headcapacity curve: Where the shutoff head is less than 1.16 times the head at the best efficiency point.
232123HydronicPumps.docx