Trane YHC037E - Installation; Condensate Drain Configuration; To convert drain condensate out the front of unit:; To convert drain condensate through-the base of unit:

Installation
38 RT-SVX21P-EN
Figure 44. ReliaTel™ humidistat (dehumidification
option)
Figure 45. Electromechanical control customer low voltage routing (all units except 10 ton high efficiency)
Figure 46. ReliaTel™ control customer low voltage routing (all units except 10 ton high efficiency)