Trane Optimus RTHD - Evaporator and Condenser Waterboxes (DGG;EGG); Grooved Pipe Connections and Vents;Drains; Evaporator and Condenser Piping Components

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RTHD-SVX01L-EN
Figure 16. Condenser and evaporator waterboxes — DGG/EGG
3 Pass Evap Connection
Configuration
(left or right hand)
Depending on Water Inlet
OUT
IN
EVAP
IN
OUT
COND
Making Grooved Pipe Connections
NOTICE
Heat Exchanger Damage!
Failure to follow instructions below could result in
heat exchanger damage.
If an acidic commercial flushing solution is used,
bypass the EVP chiller to prevent damage .
Note: Make sure that all piping is flushed and cleaned prior
to starting the unit.
Vents and Drains
Install pipe plugs in evaporator and condenser water box
drain and vent connections before filling the water systems.
To drain water, remove vent and drain plugs, install a NPT
connector in the drain connection with a shutoff valve and
connect a hose to it.
Evaporator Piping Components
Note: Make sure all piping components are between the
shutoff valves, so that isolation can be accomplished
on both the condenser and the evaporator.
“Piping components” include all devices and controls used
to provide proper water system operation and unit
operating safety. These components and their general
locations are given below.
Entering Chilled Water Piping
• Air vents (to bleed air from system)
• Water pressure gauges with shutoff valves
• Pipe unions
• Vibration eliminators (rubber boots)
• Shutoff (isolation) valves
• Thermometers
• Cleanout tees
• Pipe strainer
• Flow switch
Leaving Chilled Water Piping
• Air vents (to bleed air from system)
• Water pressure gauges with shutoff valves
• Pipe unions
• Vibration eliminators (rubber boots)
• Shutoff (isolation) valves
• Thermometers
• Cleanout tees
• Balancing valve
• Pressure relief valve
NOTICE
Evaporator Damage!
Failure to follow below instructions could result in
damage to the evaporator.
• Do NOT exceed 150 psig (10.3 bar) evaporator
water pressure for standard water boxes.
• To prevent tube damage, install a strainer in the
evaporator water inlet piping.
• To prevent tube corrosion, ensure that the initial
water fill has a balanced pH.
Condenser Piping Components
“Piping components” include all devices and controls used
to provide proper water system operation and unit
Installation Mechanical