JLG 723A Parts Manual - Manual (Page 191)

CAB
31200566 L2906H, 2906H, 3507H, 619A, 723A, 29.6LP, 29.6, 35.7 6-39
Figure 6-8 Heat & A/C Installation (Continued)
TO HEATER WITH A/C
EXPANSION VALVE
S/N 1160005989 & After
including 1160005189, 1160005314 & 1160005414