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12 Servicing Information
12.1. Distinction Of Lead Free (PbF) Printed Circuit Board
• 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).
• 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 practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
12.2. Indoor Electronic Controllers Removal Procedures
1. The Electronic Controller, a Signal Receiver and an
Indicator (Fig. 3) can be seen by the below steps:
• Remove the 3 caps and 3 screws at the bottom of the
Front Grille. (Fig. 1)
• Remove the Front Grille by releasing the 3 hooks at the
top of the Front Grille. (Fig. 1)
• Unhook the tabs at the Control Board to remove the
Control Board Cover. (Fig. 2)
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CS-V18DKE CU-V18DKE / CS-V24DKE CU-V24DKE
Fig. 1
Fig. 2
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