Trane RTHD

RTHD-SVX01D-EN 49
Installation Mechanical
• Pipe unions
• Vibration eliminators (rubber boots)
• Shutoff (isolation) valves. One per each pass
• Thermometers
• Cleanout tees
• Pipe strainer
• Flow switch
Leaving condenser water piping.
• Air vents (to bleed air from system)
• Water pressure gauges with shutoff valves
• Pipe unions
• Vibration eliminators (rubber boots)
• Shutoff (isolation) valve - one per each pass
• Thermometers
• Cleanout tees
• Balancing valve
• Pressure relief valve.
CAUTION
Condenser Damage!
To prevent condenser damage, do not exceed 150 psig (10.3 bar)
water pressure for standard water boxes. Maximum pressure for
high pressure water boxes is 300 psig (20.7 bar). Refer to digit 18
of the Model No. To prevent tube damage, install a strainer in
condenser water inlet piping. To prevent tube corrosion, ensure
that the initial water fill has a balanced pH.
Condenser Water Regulating Valve
The Condenser Head Pressure Control Option provides for a 0-10VDC (maxi-
mum range - a smaller range is adjustable) output interface to the customer's
condenser water flow device. The condenser water flow device is typically a
large butterfly type (6" or 8") automatic valve for 200 to 400 Ton chillers.
The following guidelines must be met in order to ensure adequate oil circula-
tion throughout the system.
• The RTHD must maintain a 23 psid system pressure differential at all load
conditions in order to ensure adequate oil circulation.
• The entering condenser water temperature must be above 55°F (12.8°C)
or between 45°F (7.2°C) and 55°F (12.8°C) with a 1°F temperature rise per
minute to 55°F (12.8°C).