Lennox MPA009S4S-*L Installation Instructions Manual page 17

INDOOR UNIT
Maximum
Elevation -
Outdooor
Unit BELOW
Indoor Unit
Outside Unit BELOW Indoor Unit
Do not allow for excess length of line sets to be left rolled up as part of the
required distance, or in general. This will also cause additional performance issues.
System Size (KBtu)
009
012
018
024/030
Table 4. Refrigerant Line Set Requirements
Maximum Line Set
Length
OUTDOOR UNIT
Minimum Line Set
Length - 10 ft. (3m)
Each system size has a line set length and vertical elevation parameters.
Line Set Diameters (in.)
Liquid Gas
1/4 3/8
1/4 1/2
1/4 1/2
3/8 5/8
Maximum Line Set
Length
INDOOR UNIT
Outside Unit ABOVE Indoor Unit
IMPORTANT
Maximum Elevation
Outdoor Unit BELOW
Indoor Unit - Feet
(Meter)
40 (12)
40 (12)
66 (20)
82 (25)
17
Minimum Line Set
Length - 10 ft. (3m)
OUTDOOR UNIT
Maximum
Elevation -
Outdooor
Unit ABOVE
Indoor Unit
Maximum Elevation
Maximum Line
Outdoor Unit ABOVE
Set Length - Feet
Indoor Unit - Feet
(Meter)
40 (12)
40 (12)
66 (20)
82 (25)
(Meters)
82 (25)
82 (25)
98 (30)
164 (50)