Trane AquaStream CGWN 205 - Page 28

Installation
CG-SVX06D-E428
The minimum required subcooling at the remote condenser level when
installed below is defined in the following table.
Example : If the remote condenser is 10m below the CCUN and the
condensing temperature is 50°C, the refrigerant subcooling leaving the remote
condenser shall not be below 4°C. To increase the amount of subcooling,
more refrigerant charge is required.
Table 11 - Maximum elevation (H) of CCUN above remote condenser
For recommended discharge line diameters refer to the following tables.
For vertical discharge line a double vertical riser must be used and designed
within state-of-the-art.
Figure 16 - Double vertical riser
Smaller
riser
Larger
riser
trap
Subcooling
°C
Condensing dew temperature °C
20°C 35°C 50°C 65°C
4°C 4 m 6 m 8 m 10 m
6°C 8 m 12 m 16 m 20 m
8°C 12 m 17 m 23 m 30 m
10°C 16 m 23 m 30 m 40 m
12°C 20 m 28 m 38 m 49 m