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14-17L
Technical instruction
Step 1
Open front cover
1.Screw off the front panel and disconnect the display and control unit terminal.
Step 2
Replace gas
tube assembly
(pic 1)
1.Screw off the gas tube assembly① and take it out②.
2.Change to the matched gas ejector tube assembly.
Note: It's necessary to examine the air tightness after change, to check the seal
ring on the gas control system installed well to prevent gas leakage.
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