Make sure the detail reflects the following:
- The balancing valve is on the return side of the coil. It should be located just before the exit isolation valve.
- A Y-strainer with a blowdown valve located on the coil inlet.
- Adequate unions, P/T ports and air venting.
Terminal Unit - No ATC
Features : Y-strainer with blowdown, AutoFlow on the return
Terminal Unit - Two-way ATC on Return
Features: Y-strainer with blowdown, AutoFlow on the return
Terminal Unit - Two-way ATC on Supply
Features: Y-strainer with blowdown, AutoFlow on the return
Heat Pump - No ATC
Features: Fire rated hoses,Y-strainer with blowdown, AutoFlow on the return
Terminal Unit - Three-way Mixing ATC
Features: ATC normally closed to coil, Y-strainer with blowdown, AutoFlow on the return
Multiple Coils - Three-way Mixing ATC
Features: Y-strainer with blowdown, AutoFlow on the return, manual balance valves on individual coils
Air Handler with Secondary Pump
Features: Pump on the supply, Y-strainer with blowdown, AutoFlow on the return
Secondary System Pumps in Parallel
Can be staged for required flow.
By-pass Line Allows Flow Either Direction
Primary Pumping Through
Chiller, Boiler or Cooling Tower
Use WS series to 30" to prevent overflow through chillers, etc.
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