CoolTIG220 Board Opening Map

This is the fast internal opening map for CoolTIG220 once torch, gas, and control-accessory branches are already bounded.

Open Only After Proving

simple DC TIG baseline is already simplified as far as possible
gas regulator and hose path are already proven
the fitted unit has been checked against the HF or no-HF version notes
local control is already checked before trusting a remote or switch fault

First Internal Targets

Board or internal group	Open first when...	Key connector or checkpoint	Best local file to open first
HF-start or version branch	the machine is being treated like the wrong HF or no-HF version	fitted version and HF note path	`220VCOOLTIG220楂橀鏁呴殰璇婃柇.docx` and `220V_VERSION_NO_HF.docx`
Control and remote branch	panel state looks healthy but the switch or pedal branch still acts wrong	control-branch response versus fitted accessory path	`CoolTIG220_鐢佃矾鍥?jpg` and workbook sheet `CoolTIG220`
Front-end versus internal identity check	torch-front-end and connector identity are still being mixed together	assembly orientation and wear-item confirmation	`S.006RM.T32-CA鏄撴崯浠剁垎鐐稿浘.pdf` and `S.006RM.T32-CA瑁呴厤浣?JPG`

Connector and Board-Family Reminders

Do not chase an HF fault on a no-HF version machine.
Keep torch-switch and remote faults outside the board set until a known-good accessory branch is proven.
Use the exploded wear-item files before assuming a front-end complaint is internal.
Do not open the machine while simple DC TIG and local control still point back to an external torch or control branch.

External Parts Exit Paths

If the opening pass shows the complaint still follows the torch, gas, or control-accessory branch, leave the board path and use the official ordering flow instead.
CoolTIG220 parts category: official parts path
PRO17 TIG torch WAT31100: official product page
FC25-HD foot pedal 07002510: official product page

Stop Rules

Stop if the complaint follows one switch or pedal branch only.
Stop if gas correction or front-end correction changes the complaint immediately.
Stop if the fitted unit matches the documented no-HF version note and only the HF expectation was wrong.
Stop and return to the full guide if version, gas, and control evidence still overlap after the first opening pass.

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