Outdoor Unit Information; Single And Multi-Zone Outdoor Units; Model Number Identification - Lennox MMA018SM4 Service Manual

6. Single and Multi-Zone Outdoor Units

NOTE: Outdoor units can only be installed in an unenclosed outdoor environment.
WARNING
The clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HCFCs, and HFCs) as of July, 1992.
Approved methods of recovery, recycling or reclaiming
must be followed. Fines and/or incarceration may be
levied for non-compliance.

6.1. Model Number Identification

OUTDOOR SINGLE ZONE HEAT PUMP UNITS - MPC
Series Type
M = Mini-Split
L = Low Ambient Heat Pump
P = Heat Pump
Major Design Sequence
A = 1st Generation
B = 2nd Generation
C = 3rd Generation
Nominal Cooling Capacity
OUTDOOR SINGLE ZONE HEAT PUMP UNITS - MLB
Series Type
M = Mini-Split
L = Low Ambient Heat Pump
Major Design Sequence
B = 2nd Generation
Nominal Cooling Capacity

Outdoor Unit Information

M P C 018 S 4 S - 1 P
Unit Type
018 = 1.5 tons
024 = 2 tons
036 = 3 tons
048 = 4 tons
060 = 5 tons
M L B 018 S 4 S - 1 P
Unit Type
018 = 1.5 tons
024 = 2 tons
036 = 3 ton
048 = 4 ton
CAUTION
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.
Minor Design Sequence
1 = 1st Revision
Refrigerant Circuits
S = Single Circuit
Refrigerant Type
4 = HFC-410A
Cooling Efficiency
S = Standard Efficiency
Minor Design Sequence
1 = 1st Revision
Refrigerant Circuits
S = Single Circuit
Refrigerant Type
4 = R-410A
Cooling Efficiency
S = Standard Efficiency
30
Voltage
P = 208/230V-1 phase-60hz
Voltage
P = 208/230V-1 phase-60Hz