(Cleaning Indoor Unit Heat Exchanger)
MAINTENANCE
Service Manual
4-151
TURN OFF all power source switches.
4.2.7.4 Wall Mount Model
6SUHDGDYLQ\OVKHHWRYHUWKHÀRRUWRSURWHFWSURSHUW\IURPFOHDQLQJZDWHUEHIRUHSHUIRUPLQJWKLVZRUN
(1) Remove each part according to Section 4.2.6 “Wall Mount Type”.
(2) Remove the front panel according to Section 4.2.6.2 “Removing Front Panel”.
(3) Remove the electrical box according to Section 4.2.6.5 “Removing Electrical Box”.
(4) Remove the drain pan according to Section 4.2.6.7 “Removing Drain Pan”.
(5) Remove the heat exchanger according to Section 4.2.6.8 “Removing Heat Exchanger”.
(6) Cleaning
(a) Remove dust with a brush.
(b) Cover the electrical components with a vinyl sheet to protect them from splashing cleaning water.
(c) If a cleaning agent is used, clean the heat exchanger with clean water completely.
G $GMXVWWKHSUHVVXUHRIWKHSXPSVRWKH¿QVDUHQRWGDPDJHG
(7) Neutralization Treatment after Cleaning
7KHFOHDQLQJDJHQWVSHFL¿HGLQ6HFWLRQLVDQHXWUDOW\SH+RZHYHUWKHFOHDQLQJZDWHU
after use may no longer be neutral. Recover all cleaning water and make necessary neutralization
treatment for the cleaning water.
Neutral Cleaning Water,
Clean Water, Pump, Spray
Tool
NOTES:
,IZDWHUUHPDLQVRQWKH¿QVWKH\ZLOOEHFRUURGHG
2. Adjust the pressure of the pump at 36 to 71 psi (2.5 to 5.0 kg/cm
2
VRWKH¿QVDUHQRWGDPDJHG
Nozzle
Heat Exchanger
Summary of Contents for YVAHP072B31S
Page 2: ......
Page 10: ...viii Service Manual ...
Page 16: ......
Page 17: ...Service Manual 1 1 INSTALLATION 1 Installation ...
Page 577: ...Service Manual 1 561 INSTALLATION 9 Touch Back to return to the Service Menu screen 9 ...
Page 920: ......
Page 921: ...Service Manual 2 1 OPERATION 2 Operation ...
Page 1315: ...Service Manual 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Page 1461: ...Service Manual 4 1 MAINTENANCE 4 Maintenance ...
Page 1728: ......
Page 1729: ...Service Manual 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Page 1738: ...6 10 Service Manual FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A ft 3 l b ...
Page 1739: ...SERVICE PARTS LIST Service Manual 7 1 7 Service Parts List ...
Page 1795: ......
Page 1796: ... 2015 Johnson Controls Inc SM 15001 ...