52S
SERIES
ELECTRICAL COMPONENTS REMOVAL AND REPLACEMENT
INDOOR THERMOSTAT Ð To remove the indoor thermostat, perform the following steps:
1.Turn off unit power as described in GENERAL DISASSEMBLY section.
2.Remove the thermostat knob.
3.Remove control box escutcheon (Figure 58) to expose 2 Phillips head mounting screws. Remove the tem- perature limiter by gently lifting it off the thermostat knob shaft (Figure 59).
4.Open the control box as described in the GENERAL DISASSEMBLY section of this manual.
5.Remove the thermostat bulb from the clip by gently pressing it down and out of the clip. See Figure 27.
6.Remove the 2 screws mounting the thermostat to the control box.
7.Remove the leads from the indoor thermostat and remove it. Route the capillary out of the control box. Note the wire locations to ease
8.Reverse Steps 1 - 7 to reinstall.
CONTROL BOX ESCUTCHEON
OUTDOOR FROST THERMOSTAT (Heat Pump Units)
ÐTo remove the outdoor frost thermostat (OFT), per- form the following steps:
1.Turn off unit power as described in GENERAL DISASSEMBLY section.
2.Remove the 2 screws mounting the thermostat to the right side of the control box. See Figure 60.
3.Remove the thermostat capillary from the outdoor coil and clip any wire ties holding the capillary in place.
4.Disconnect the wires and carefully remove the ther- mostat and capillary from the unit.
5.Reverse Steps 1 - 4 to reinstall.
FIGURE 60 Ð OUTDOOR FROST
THERMOSTAT SCREWS
THERMOSTAT
KNOB
ESCUTCHEON SCREWS
FIGURE 58 Ð ESCUTCHEON REMOVAL
FIGURE 59 Ð TEMPERATURE LIMITER
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