Lennox LICH4012021T431E-1, Service Manual

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Indoor unit installation
Installation
89
3.5
A6 duct indoor unit installation
3.5.1. Service space for indoor unit
3.5.2.
Bolt pitch
Capacity(KBtu)
Size of outline dimension mounted lug
L M
18 920 508
24 1140 598
36 1400 598
3.5.3.
Hang indoor unit
1. Please refer to the upper data to locate the four positioning screw bolt hole on the ceiling. Be sure to mark
the areas where ceiling hook holes will be drilled.
2. Install and fit pipes and wires after you have finished installing the main body. When choosing where to
start, determine the direction of the pipes to be drawn out. Especially in cases where there is a ceiling
involved, align the refrigerant pipes, drain pipes, and indoor and outdoor lines with their connection points
before mounting the unit.
3. Install hanging screw bolts.
• Cut off the roof beam.
• Strengthen the place that has been cut off, and consolidate the roof beam.