Condensate

Question 1

Describe the automatic interlocks of CDN-LV-075, Condenser Hotwell Level Control draw-off valve.

Answer 1

• closes automatically on:
  
  • high cation conductivity in any how well half
  • low MFP suction pressure

Question 2

What is the basis for operating the Hotwell at 41”?

Answer 2

• the condensate pumps may trip on low level (30”) if a heater drain pump trips

Question 3

Describe the operation of VDN-PDIC-195, Condensate Polishing Demineralizer bypass valve.

Answer 3

• reverse acting: 0% output means valve is fully open.
• auto opens at 55 psid in manual or auto
• auto opens if either the demon inlet or outlet valves are closed