Lennox MS8 SERIES User Manual

Page 21
Corp. 1244-L9
TABLE 9
REFRIGERANT LINE SET REQUIREMENTS, LENGTH AND HEIGHT LIMITATIONS AND OUTDOOR UNIT
REFRIGERANT METERING DEVICE TYPE (AIR CONDITIONER AND HEAT PUMP SYSTEMS)
System
Size
(kBtu)
Line Set Diameters
Maximum Line Set
Elevation
Maximum Line Set
Length
Refrigerant
Metering Device
Type
Small Line Large Line
-09
1/4 in. (6 mm) 3/8 in. (9.5 mm) 33 feet (10 m) 66 Feet (20 m)
Electronic Expansion
Valve
-12
-18 1/4 in. (6 mm) 1/2 in. (12 mm)
49 feet (15 m) 98 Feet (30 m)
-24 1/4 in. (6 mm) 5/8 in. (16 mm)
-30 1/4 in. (6 mm) 5/8 in. 16 mm) 33 feet (10 m) 98 Feet (30 m)
Note - Minimum line set length for all sizes is 10 feet (3 meters).
OUTDOOR UNIT
OUTDOOR UNIT
INDOOR UNIT
INDOOR UNIT
Maximum Line
Set Elevation
Maximum Line Set Length
Maximum Line Set
Length
Maximum Line
Set Elevation
LINE SET LENGTH AND ELEVATION
FIGURE 35
TABLE 10
TORQUE SPECIFICATIONS
Outside Diameter Recommended Torque
No torque wrench available
Finger tighten and use an
appropriately sized wrench to turn an
additional:
1
2
3
4
5
6
7
8
9
10
11
12
1/4 TURN
Inches
mm U.S.
Metric (Newton
Meter)
1/4” 6.35 15 ft.- lb. 20
1/4 turn
3/8” 9.52 26 ft.- lb. 35 1/2 turn
1/2” 12.70 41 ft.- lb. 55 7/8 turn
5/8” 15.88 48 ft.- Ib. 65 1 full turn

Lennox MS8 SERIES Specifications

General

Brand	Lennox
Model	MS8 SERIES
Category	Air Conditioner
Language	English