To remove the resistance heaters:
1. Remove the front panel and slide the chassis
forward approximately 5 in. (see Slide-Out
Chassis chapter).
2. Remove electronics cover (see Main Board
chapter).
3. Remove the left and right corner sheet metal
panels fastened to the sides of the indoor coil.
4. Remove 3 screws fastening the ventilation
control to the indoor coil top panel.
5. Remove 4 screws and the indoor coil top
panel.
6. Carefully position the indoor coil to allow
access to 4 heater assembly mounting
screws.
7. Remove 4 screws and the heater.
8. Tag and disconnect wires.
9. Slide the heater out of the right side of the unit.
To Test Heaters and Thermal Protectors:
Disconnect the heater connector. Measure the
resistance of each coil using the following
resistance values.
Check the thermal protectors for continuity
between heater connector terminal 1 (black wire)
and the black wire to relay RY103.
Note:
A continuity reading on a thermal
protector indicates that the protector is
closed at the time of the check only. A faulty
thermal protector may open prematurely, resulting
in insufficient heating.
Right Corner Sheet Metal Panel
Left Corner Sheet Metal Panel
Left Corner Sheet Metal Panel
Right Corner Sheet Metal Panel
Indoor Coil Top Panel
Ventilation Control
Resistance Heaters
Thermal Protectors
Indoor Coil
Heater Connector
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8
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Ω
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Summary of Contents for AZ75E09DAC
Page 7: ... 5 Direct Connection 208 VAC 230 VAC 265 VAC ...
Page 37: ... 35 Notes ...
Page 45: ... 43 Parts List ...
Page 46: ... 44 ...
Page 47: ... 45 ...
Page 48: ... 46 ...
Page 55: ... 53 Notes ...
