Daikin UDH - Suggested Piping Arrangements

IM 907 / Page 7 of 24
Installation
Hot Water Systems
Horizontal Unit Heater Connected to Overhead Hot Water Mains
Vertical Unit Heater Connected to Lower Hot Water Mains
Horizontal Unit Heater Side Connection for Low Pressure Steam Open
Gravity or Vacuum Return Steam
Steam Systems (UHH-18 through 86)
Horizontal Unit Heater Side Connection for High Pressure Steam
Steam Systems (UHH-108 through 340)
Horizontal Unit Heater Top/Bottom Connection for High Pressure Steam
Horizontal Unit Heater Top/Bottom Connection for Low Pressure Steam
Open Gravity or Vacuum Return Steam
Suggested Piping Arrangements
SuggestedtypicalpipingarrangementsshouldbeveriedbasedonthebestindustrypracticesperASHRAEandASME
Guidelineswhenselectedorapprovedbyaqualiedengineer.Inaddition,pipingspecialtymanufacturer’sinstallation,
operating and maintenance literature should be referenced.