The Discharge Temperature Control valve liquid injection system is a low cost and reliable solution for the D3SC-
750/X, D3SS-1000/X, D4SL/T, D6SL/T and D6SU compressors to obtain lower evaporating temperatures within an
extended operating envelope.
The afore mentioned compressors are equipped with a plugged injection port on the side of the compressor wall
close to the base of the cylinder block. The injection port can be retro-fitted with the DTC valve. The temperature
sensing element with 12” NPT thread fits on the D4SL/T, D6SL/T and D6SU compressor body close to the
discharge shut-off valve.