The document provides details for piping and accessories for an air handling unit (AHU). It shows piping connections between the AHU and various components like a motorized valve (MOV), flow meter (FM), pressure transmitter (P), temperature transmitter (T), and drain (DRV).

The question of how to control water flow to an array of coils in a single air handling unit (AHU) was analyzed with PIPE-FLO ®( Engineered Software, Olympia, WA, 1-800-786-8545). The base scenario consists of (6) 160 gpm coils selected for 15 ft of water pressure drop. The pipe sizing is based on a maximum of 10 feet per second max velocity.

AHU piping connections with all the parts and elements are explained in detail in this video. This video will be bene...

Mar 26, 2024 · Learn how to design a chilled water system with AHU/FCU selection, chiller sizing, cooling tower sizing, pump sizing, piping design, ductwork design and more.

AHU local controller can send “Capacity steps” by non-volt-age contact signals, analog signals, or Modbus signal to the interface unit. Operation mode can be set by remote controller, external …

3. Center of gravity -1 Vertical orie 3-2. Horizontal orientation 4. Piping diagram

Provide a standard factory assembled valve piping package to consist of a 2 or 3 way, on/off, motorized electric control valve and two ball isolation valves. Control valves are piped normally closed to the coil.

PROVIDE MANUAL AIR VENT AT THE HIGH POINT BETWEEN THE COIL AND SHUT-OFF/ISOLATION VALVE IN THE SUPPLY AND RETURN PIPING. PROVIDE 3/4" THREADED HOSE CONNECTION AND CAP. LOCATE SHUT-OFF VALVES, UNIONS AND FLANGES TO ALLOW CLEAR SPACE FOR REMOVAL OF COIL. PROVIDE BALANCE VALVE IN HWR OF EACH COIL FOR MULTIPLE COIL ARRANGEMENT.

After checking the HW piping in the original plans, the pipe size is adequate to accommodate the HW to the radiant panelsd. For a DOAS system, we will have to add chilled water supply (CWS) and return (CWR) to each zone.

The document provides pipe sizing calculations for various air handling units (AHUs). It includes the supply flowrate, mass flow rate, load calculations, and required pipe sizes for the frost coil, reheat coil, and cooling coil of each AHU.