Gaymar Thermacare TC3001, Руководство по обслуживанию

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10.3 Replacing the Thermistor
Assembly (RT1)
To replace the thermistor assembly (item 4, figs.
9-10):
1. Unplug the Power Unit.
2. Remove the six screws securing the
enclosure. Open the enclosure.
3. Unplug the thermistor assembly from the PC
board.
4. Cut the tie wraps holding the thermistor wires
to the wire harness and enclosure standoff.
Be careful not to cut the insulation on the
standoff.
5. Remove the filter retainer and nut. Remove
the filter.
6. Remove the ten screws securing the filter
inlet plate.
7. Remove the two screws securing the terminal
block. Remove the screw and lock washer
securing the ground wire to the backing plate.
8. Depending on the method of mounting, either
use wire cutters to remove the spring clip, or
loosen the speed nut securing the thermistor
assembly to the filter inlet plate.
9. Replace the thermistor assembly. Secure it
with the new speed nut supplied with the
thermistor assembly.
10. Place filter inlet plate back on top of the
scroll. Secure the ten screws.
11. Replace the terminal block. Reconnect the
ground wire to the backing plate. Make sure
the lock washer is reinstalled.
12. Plug the thermistor assembly into the control
board. Use the tie wraps supplied with the
thermistor assembly to hold the thermistor
wires to the PC board wire harness and
enclosure standoff.
13. Replace the HEPA filter. Secure it with the
filter retainer and nut.
14. Perform the FUNCTIONAL CHECK AND
SAFETY INSPECTION (section 7, pp. 8-15).
10.4 Replacing the motor
To replace the motor:
1. Unplug the Power Unit.
2. Remove the six screws securing the
enclosure. Open the enclosure.
3. Remove the filter retainer and nut. Remove
the filter.
4. Remove the ten screws securing the filter
inlet plate.
5. Remove the screw securing the ground wire
to the backing plate. Remove the two screws
securing the terminal block.
6. Carefully lift the filter inlet plate, exposing the
blower wheel.
7. Remove the blower wheel using a
1
/
8
" hex
wrench through hole in one blade of blower
wheel.
8. Cut wire tie holding wiring harness (fig. 11).
9. Unplug terminals from the motor.
10. Remove the two #8 screws and two #8
nuts from the bottom of motor.
11. Loosen the two #8 screws on top of motor.
Slide filter support bracket off. Loosen
corresponding screws on new motor and
replace filter support bracket. Tighten
screws.
12. Remove and replace the motor.
13. Secure with mounting hardware.
14. Reconnect the terminals.
15. Secure wire harness to motor with a wire tie.
16. Reinstall the blower wheel, making sure
there is 2.5 mm clearance between the
wheel and the blower inlet ring (see fig. 9).
NOTE: the hex screw must be aligned with
the flat on the motor shaft.
17. Place the filter inlet plate back on top of the
scroll. Secure the ten screws.
18. Replace the terminal block. Reconnect the
ground wire to the backing plate; make sure
the lock washer is installed.
19. Replace the HEPA filter. Secure it with the
filter retainer and nut.
Section 10 - Repair Procedures (cont’d)
22