NOTICE
To eliminate erratic operation, seal the hole in
the wall at the thermostat with permagum or
equivalent to prevent air drafts affecting the
operation of in the thermostat.
Figure 10: Outdoor unit control box (208/230 V single-
phase 30, 36, 42, 48, and 60 models only)
Figure 11: Outdoor unit control box (208/230 V and 460
V three-phase)
Figure 12: Outdoor unit control box (208/230 V single-
phase 18 and 24 models only)
R-410A Outdoor Split-System Heat Pump Installation Manual - YH2E / THE2 / RHP143 Series 29
Johnson Controls Ducted Systems