Carrier 52S Series Service Technician Manual

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Carrier 52S Series Service Technician Manual Manual pdf 30 page image

ELECTRICAL COMPONENTS REMOVALAND REPLACEMENTn INDOOR THERMOSTAT — To remove the indoorthermostat, perform the following steps:1. Turn off unit power as described in GENERALDISASSEMBLY section.2. Remove the thermostat knob.3. Remove control box escutcheon (Figure 58) to expose2 Phillips head mounting screws. Remove the tem-perature limiter by gently lifting it off the thermostatknob shaft (Figure 59).4. Open the control box as described in the GENERALDISASSEMBLY section of this manual.5. Remove the thermostat bulb from the clip by gentlypressing it down and out of the clip. See Figure 27.6. Remove the 2 screws mounting the thermostat to thecontrol box.7. Remove the leads from the indoor thermostat andremove it. Route the capillary out of the control box.Note the wire locations to ease re-assembly.8. Reverse Steps 1 - 7 to reinstall.n OUTDOOR FROST THERMOSTAT (Heat Pump Units)— To remove the outdoor frost thermostat (OFT), per-form the following steps:1. Turn off unit power as described in GENERALDISASSEMBLY section.2. Remove the 2 screws mounting the thermostat to theright side of the control box. See Figure 60.3. Remove the thermostat capillary from the outdoorcoil and clip any wire ties holding the capillary inplace.4. Disconnect the wires and carefully remove the ther-mostat and capillary from the unit.5. Reverse Steps 1 - 4 to reinstall.CONTROL BOX ESCUTCHEONTHERMOSTATKNOBESCUTCHEON SCREWSFIGURE 58 — ESCUTCHEON REMOVALFIGURE 59 — TEMPERATURE LIMITERFIGURE 60 — OUTDOOR FROSTTHERMOSTAT SCREWS52SSERIES30