PTEC-M-1A
44
Disassembly
Procedures
11. Remove the flood back protector
from the evaporator discharge
tube.
12. Remove screws holding
evaporator to basepan and
partition panel.
13. After recapturing the refrigerant
charge (see Refrigeration Service
section), debraze the tubes into
the evaporator. Be sure to protect
all chassis components,
especially foam parts, from
excessive heat.
13. Lift the evaporator up over the
basepan edge and remove.
Outdoor Coil Thermistor
1. Remove chassis from wall sleeve.
2. Remove control knobs by pulling
straight up away from the
escutcheon.
3. Remove the escutcheon by lifting
front of escutcheon up and pulling
top tabs from holes.
4. Remove the two mounting
screws, one on each side of the
control board cover. Tilting the
control panel out, remove the
cover.
5. Disconnect outdoor coil thermistor
wiring from the control board
Outdoor Coil terminal.
6. Remove the outdoor thermostat
from the outside coil.
7. Carefully slide thermostat wiring
through the center partition. When
replacing, be sure all holes in the
center partition are properly
sealed with permagum.
WARNING!
To avoid possible electrical shock,
personal injury or death, disconnect
the power before servicing.
Blower Wheel, Blower Motor, Fan
Blade
1. Remove chassis from the wall
sleeve.
2. Remove control knobs by pulling
straight up away from the
escutcheon.
3. Remove the escutcheon by lifting
front of escutcheon up and pulling
top tabs from holes.
4. Remove the two mounting
screws, one on each side of the
control board cover. Tilting the
control panel out, remove the
cover.
5. Remove the two screws securing
the top screen to the evaporator
assembly. (Be sure to slide the top
of the screen between the top
flange and chassis when
reassembling.)
6. Remove the two screws securing
the heater assembly to the
evaporator.
7. Pull heater assembly up and out of
the chassis.
8. Loosen the allen screw securing
the clamp holding the blower
wheel on the motor shaft.
9. Pull the blower wheel off the shaft.
Summary of Contents for PTEC-070
Page 22: ...PTEC M 1A 22 Refrigeration System PTEC Refrigeration System...
Page 54: ...PTEC M 1A 54 Schematic Diagrams PTEC and PTHC Condensate Pump One Stage Heat...
Page 55: ...55 PTEC M 1A Schematic Diagrams PTEC and PTHC Condensate Pump Two Stage Heat...
Page 56: ...PTEC M 1A 56 Schematic Diagrams PTEC and PTHC Power Vent One Stage Heat...
Page 57: ...57 PTEC M 1A Schematic Diagrams PTEC and PTHC Power Vent Two Stage Heat...
Page 58: ...PTEC M 1A 58 PTEC and PTHC Power Door One Stage Heat Schematic Diagrams...
Page 59: ...59 PTEC M 1A Schematic Diagrams PTEC and PTHC Power Door Two Stage Heat...
Page 60: ...PTEC M 1A 60 Schematic Diagrams PTEC and PTHC Condensate Pump with Power Vent One Stage Heat...
Page 61: ...61 PTEC M 1A Schematic Diagrams PTEC and PTHC Condensate Pump with Power Vent Two Stage Heat...
Page 62: ...PTEC M 1A 62 Schematic Diagrams Hydronic...
Page 63: ......
