Trane Optimus RTHD - Freeze Protection Settings (Continued)

Installation Mechanical
RTHD-SVX01K-EN 35
Pressure relief valve discharge capacities will vary with
shell diameter and length and also compressor
displacement. Discharge venting capacity should be
calculated as required by ASHRAE Standard 15-94. Do not
adjust relief valve setting in the field.
Figure 17. Relief valve location
Evaporator Shell
Condenser Shell
*Valve is hidden by pipe
Relief
Valves
Relief
Valves
*
*
Table 8. Pressure relief valve data
Valve
Location
Discharge
Setpoint
(psi)
Number
of
Valves
Rated
Capacity
per Relief
Valve
(lba/
min.)
Field
Conn
Pipe
Size
(NPT)
Factory
Shell Side
Conn (in)
Evap - B1 200 1 48.0 1 1-5/16 -12
Evap - B2 200 1 48.0 1 1-5/16 -12
Evap -B3 200 1 48.0 1 1-5/16 -12
Evap -C1 200 1 48.0 1 1-5/16 -12
Evap - C2 200 1 48.0 1 1-5/16 -12
Evap - D1 200 1 48.0 1 1-5/16 -12
Evap - D2 200 1 48.0 1 1-5/16 -12
Evap - D3 200 1 48.0 1 1-5/16 -12
Evap - D4 200 1 48.0 1 1-5/16 -12
Evap - D5 200 1 48.0 1 1-5/16 -12
Evap - D6 200 1 48.0 1 1-5/16 -12
Evap - E1 200 1 48.0 1 1-5/16 -12
Evap - F1 200 1 48.0 1 1-5/16 -12
Evap - F2 200 1 48.0 1 1-5/16 -12
Evap - G1 200 1 78.8 1-1/4 1-5/8 - 12
Evap - G2 200 1 78.8 1-1/4 1-5/8 - 12
Evap - G3 200 1 78.8 1-1/4 1-5/8 - 12
Cond - B1 200 2 48.0 1 1-5/16 -12
Cond - B2 200 2 48.0 1 1-5/16 -12
Cond - D1 200 2 48.0 1 1-5/16 -12
Cond - D2 200 2 48.0 1 1-5/16 -12
Cond - E1 200 2 48.0 1 1-5/16 -12
Cond - E2 200 2 48.0 1 1-5/16 -12
Cond - E3 200 2 48.0 1 1-5/16 -12
Cond - E4 200 2 48.0 1 1-5/16 -12
Cond - E5 200 2 48.0 1 1-5/16 -12
Cond - F1 200 2 48.0 1 1-5/16 -12
Cond - F2 200 2 48.0 1 1-5/16 -12
Cond - F3 200 2 48.0 1 1-5/16 -12
Cond - G1 200 2 48.0 1 1-5/16 -12
Cond - G2 200 2 48.0 1 1-5/16 -12
Cond - G3 200 2 48.0 1 1-5/16 -12
Comp -
B1/B2
(a)
(a)Only used with isolation valve option
200 2 78.8 1-1/4 1-5/8 - 12
Comp -
C1/C2(a)
200 3 78.8 1-1/4 1-5/8 - 12
Comp -
D1/D2/
D3(a)
200 3 78.8 1-1/4 1-5/8 - 12
Comp -E3(a) 200 3 78.8 1-1/4 1-5/8 - 12