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8. OUTDOOR UNIT INSTALLATION MANUAL
Engineering Data book
* The LEDs and DIP switches are located at the lower left of the P.C. board of the outdoor unit.
14APPENDIX
Curing of pipes
When removing and opening the hydro unit or outdoor unit for a long time, cure the pipes as follows:
• Otherwise rust may generate when moisture or foreign matter due to dewing enters in the pipes.
• The rust cannot be removed by cleaning, and a new piping work is necessary.
Place position Term Curing manner
Outdoors
1 month or more Pinching
Less than 1 month
Pinching or taping
Hydro units Every time
SW801
SW804
SW800
LED
ON
1234
SW803
ON
1234
SW802
ON
1234
D800
D801
D802
D803
D804
D805
D800
D801
D802
D803
D804
D805
Enlarged view
of LEDs
21-EN
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