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•
Electronic controller and Display Complete unit can be seen
by following the below removal procedures.
by following the below removal procedures.
Fig. 1
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Remove the 2 caps and 2 screws at the bottom of the
Front Grille.(Fig.1)
Front Grille.(Fig.1)
Fig. 2
−
Remove the Front Grille Complete. (Fig.2)
Fig. 3
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Release the taps on top and on the right side of metal
plate cover.(Fig.3)
plate cover.(Fig.3)
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Then remove the metal plate cover.(Fig.3)
−
Remove the indicator complete screw, and then remove
the indicator complete.(Fig.3)
the indicator complete.(Fig.3)
12 Servicing Information
12.1. Distinction of Lead Free (PbF) Printed Circuit Board
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Printed circuit boards (manufactured) using lead free solder will have a PbF stamp on the Printed Circuit board.
CAUTION
•
Pb free solder has a higher melting point than standard solder; typically the melting point is 50 - 70°F (30 - 40°C) higher.
Please use a high temperature solder iron and set it to 700 ± 20°F (370 ± 10°C).
Please use a high temperature solder iron and set it to 700 ± 20°F (370 ± 10°C).
•
Pb free solder will tend to splash when heated too high (about 1100°F/600°C).
•
If you must use Pb solder, please completely remove all of the Pb free solder on the pin or solder area before applying Pb
solder. If this is not pratical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
solder. If this is not pratical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
12.2. Indoor Electronic Controller Removal Procedures
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