Panasonic CS-W50BD3P Service Manual

Also see for CS-W50BD3P: Operating instructions

Panasonic CS-W50BD3P Service Manual Manual pdf 39 page image

Procedure: Press the ADDRESS RESET switch SW3 (push button switch) on the outdoor unit circuit board continuously until LEDs 2 to 8 onthe outdoor unit circuit board are all illuminated (takes approx. 3.5 seconds).Operation: The outdoor unit will reset the addresses for the indoor units which it is connected to, and will send an instruction to carry outautomatic address setting again. If the indoor unit DIP switches have not been manually set for twin address setting, the indoorunits receive this command and they then clear their existing settings and carry out automatic address setting.If an indoor unit has had its address set by the DIP switch (DIP switch 1-8 is ON), or if the remote control unit is connected to oneof the indoor units, then the addresses for those indoor units cannot be reset.•••• The indoor units will not run for approximately 1 minute while automatic twin address resetting is being carried out.•••• Do not turn off the power supply for at least 1 minute after automatic twin address resetting has been carried out.18.2. Piping connections•••• The following table shows the pipe diameters for a twin-type system.Outdoor unit main pipe diameter (mm) Indoor unit combinations34BB Indoor unit capacity (HP) 18BD3 18BD3Liquid side: ø 9.52 Branch pipediameterLiquid side ø 6.35 ø 6.35Gas side: ø 15.88 Gas side ø 12.7 ø 12.743BB Indoor unit capacity (HP) 24BD3 24BD3 18BD3 28BD3Liquid side: ø 9.52 Branch pipediameterLiquid side ø 6.35 ø 6.35 ø 6.35 ø 9.52Gas side: ø 19.05 Gas side ø 15.88 ø 15.88 ø 12.7 ø 15.88•••• The following table shows the equivalent pipe lengths and height differences for twin systemsEquivalent length L + la + lb Within 50 mBranch pipe diameter la, lb Within 15 mBranch pipe difference la - lb Within 10 mHeight difference H1 Within 30 m Height difference between indoor units H2 Within 1 mNOTE :1. Use the main pipe to gain any rise or fall required for the pipes.2. The number of bends should be 8 or less in a single system (L + la, L + Ib), and 15 or less overall.3. Branch pipes should be positioned horizontally.39