Lennox MLA030S4M Service Manual

167
32. Index
A
AC Fan Motor 156
Adding Refrigerant
Multi-Zone System 90
Single Zone System 90
Alarm Device 89
B
Blower Data - MMDA Indoor Units 25
C
Cassette Unit Display 126
Ceiling Mounted Unit Display 127
Centralized Controller 87
Clearances
M22A,M33AandM33BIndoorUnit23
MCFAandMCFBIndoorUnits34
MMDAIndoorUnit29
MWMAandMWMBIndoorUnits31
OutdoorUnits18
Coil Outlet Temperature Sensor Error 116
Communication Error 103
Compressor Check 154
Compressor Current Overload - Outdoor Unit 136
Compressor Current Overload Sensed - Outdoor Unit
121
Compressor Discharge Temperature Sensor Error 139
Compressor Drive Error 148
Compressor High or Low Pressure Switch Open 149
Compressor Top High Temperature Protection 147
Condensate Piping
IndoorUnitGravityDrain78
IndoorUnitLiftPump79
M22A,M33AandM33BIndoorUnits80
MMDAIndoorUnits79
OutdoorUnit77
Control Board Photos 75
D
DC Fan Motor Speed Error - Outdoor Unit 114
Defrost Control 163
Defrost Termination 164
Defrost Therory 163
Dimensions
M22AIndoorUnit21
M33AandM33BIndoorUnit22
MCFAandMCFBIndoorUnits33
MMDAIndoorUnit28
Multi-ZoneOutdoorUnits17
MWMAandMWMBIndoorUnits31
Single-ZoneOutdoorUnits16
Discharge Temperature Sensor Resistance Values 153
Display Tube - Outdoor Unit 93
Dry Mode Operation
MWMAandMWMB93
Ducted Unit Display 126
E
EEPROM Indoor Unit 128
EEPROM Malfunction - Outdoor Unit 102
EEPROM - Outdoor 140
Error Codes - Indoor Units 128
Error Codes - Outdoor Units 95
Evaporator Outlet Coil Temperature Sensor Fault 142
F
Fan Control - Outdoor 164
Fan Speed Error - Outdoor 141
Fan Speed - Indoor 131
H
High and Low Voltage Protection 109, 146
High Pressure Switch Open 117
High Temperature at Outdoor Coll 124
High Temperature Sensed at Compressor Discharge
Line 123
I
Indoor Coil Temperature Sensor 133
Inverter Check 155
Inverter Module Error 125
Inverter Overcurrent Protection 143
L
LEDs

Lennox MLA030S4M Specifications

General

Brand	Lennox
Model	MLA030S4M
Category	Air Conditioner
Language	English