Lennox LIUH018021T431E-1 Service Manual page 78

Installation
Part 4
Installation
1. Installation Procedure .................................................... 77
2. Location selection .......................................................... 78
3. Indoor unit installation ................................................... 79
4. Outdoor unit installation (Side Discharge Unit) ........... 92
5. Refrigerant pipe installation .......................................... 93
6. Drainage pipe installation .............................................. 97
7. Vacuum Drying and Leakage Checking ...................... 101
8. Additional refrigerant charge ....................................... 102
9. Engineering of insulation ............................................. 103
10. Engineering of electrical wiring ................................... 104
11. Test operation ............................................................... 105
Installation
76