1 March 2012 RAC Service tool

2 1. RAC Service tool Service toolFunctionPart DC motor checker (DMCT) Operate the DC fan motor Noise test of DC motor FMo FMi Control circuit checker (CCCT) Confirm PCB output to DC motor Confirm response from PWB (Main) Communication checker (COMT) View error display Check operation data PWB, Actuators Inverter checker (ICT) Check output from PCB/Transistor to compressor PCB(INV) COMTDMCT,CCCT

3 1. RAC Service tool 1-1 How to use DC motor checker (DMCT) (1) Connection Power cable CCCT DMCT (Checker) （１） Choice a connector type Wiring (pin position )is different (Depend on FM model) （ 2 ） Connect FM to DMCT To: DMCT To: CCCT （ 3 ） Connect power cable To: DC MOTOR

4 1. RAC Service tool 1-1 How to use DC motor checker (DMCT) (2)How to check VSP volume controller （ 0 ） Before turn on the power supply （ 1)Turn on the power supply ・ Check motor rotation by hand （ 2 ） Check voltage ・ Check wiring resistance ・ Vm – GND :330VDC ・ V ｃｃ – GND :15VDC （ 3 ） Turn the Vsp controller clockwise ・ Check FM rotating condition Stable speed or fluctuated? Is there any noise? VMVcc ⇒ IF FM rotate normal, FM is OK

5 1. RAC Service tool 1-2 How to use Control circuit checker (CCCT) (1) Connection No need a Power cable Connector （１） Choice a connector type Wiring (pin position) is different (Depend on FM model) （ 2 ） Connect the wiring between CCCT CCCT and PWB PWB

6 1. RAC Service tool 1-2 How to use Control circuit checker (CCCT) (2)How to check （ 0 ） Before turn on the power supply （ 1)Turn on a unit via remote controller ・ Check fuse and varistor on PWB （ 2 ） Check voltage ・ Vm – GND :330VDC ・ V ｃｃ – GND :15VDC （ 3 ） Check Vsp and Vfg ・ Flashing (On and Off)? Flashing condition will be depend on FM control VM Vcc Vsp Vfg ⇒ If yes, PWB is normal. This new version CE mark Self check DMCT-CCCT join and check all LED

7 1. RAC Service tool 1-3 How to use Communication checker (COMT) (1) Connection ② Serial cable (1,2/N,3) RAM data connector ① （１） ZE,ZG model （ 2 ） ZIX,ZJX model We need to connect serial cable only We need to connect serial cable and RAM data connector [SRC-ZIX]

8 1. RAC Service tool (2-1) Main Menu Page ZG,ZE model ZI,ZJ model 1-3 How to use Communication checker (COMT) Setting

9 1. RAC Service tool (2-2) Log mode Page Select monitoring mode ① Display only ② Memory to SD card 1-3 How to use Communication checker (COMT) Monitoring Item

10 1. RAC Service tool (3) Display sample 1-3 How to use Communication checker (COMT)

11 1. RAC Service tool (4-1) Log data 1-3 How to use Communication checker (COMT) ・ We can save a log data to SD memory card

12 1. RAC Service tool (4-2) Log data Compressor frequency EEV opening pulse Temperature of each sensor 1-3 How to use Communication checker (COMT)