Lennox MPA018S4S-1P, MPA009S4S-1P, MPA024S4S-1P, MPA030S4S-1P, MPA036S4S-1P Service Manual

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LENNOX MINI-SPLIT SYSTEMS

SERVICE MANUAL

Lennox Mini-Split Service Manual / Page 1

Publication No. 450510

Origination date - 11/2015

Lennox Mini-Split Service Manual / Page 2

Table of Contents

SECTION 1 - OUTDOOR UNIT DATA ..................................................................................9

SECTION 1.1 - MPA SINGLE ZONE CONDENSING UNITS ................................................10

MODEL NUMBER IDENTIFICATION ..............................................................................11

SPECIFICATIONS - 0.75 - 1 TON MPA OUTDOOR UNITS - 115V-1 PHASE ..................12

SPECIFICATIONS - 0.75 - 1.5 TON MPA OUTDOOR UNITS - 208/230V-1 PHASE ........13

SPECIFICATIONS - 2 - 4 TON MPA OUTDOOR UNITS - 208/230V-1 PHASE ................14

SECTION 1.2 - MPA MULTI-ZONE CONDENSING UNIT .....................................................15

SPECIFICATIONS - 1.5 - 2.5 TON MPA OUTDOOR UNITS ............................................16

SPECIFICATIONS - 3 - 4 TON MPA OUTDOOR UNITS ..................................................17

SECTION 2 - INDOOR UNIT DATA ......................................................................................18

SECTION 2.1 - M22A COMPACT CASSETTE UNIT ............................................................19

MODEL NUMBER IDENTIFICATION ..............................................................................20

SPECIFICATIONS - CASSETTE INDOOR UNITS - M22A009-018 ..................................21

SOUND DATA .................................................................................................................22

AIR THROW DATA..........................................................................................................23

SECTION 2.2 - M33A CASSETTE UNIT ..............................................................................24

MODEL NUMBER IDENTIFICATION ..............................................................................25

SPECIFICATIONS - CASSETTE INDOOR UNITS - M33A024-048 ..................................26

SECTION 2.3 - MMDA DUCTED UNIT .................................................................................27

MODEL NUMBER IDENTIFICATION ..............................................................................28

SPECIFICATIONS - MEDIUM STATIC DUCTED INDOOR UNITS - 009-018 ................... 29

SPECIFICATIONS - MEDIUM STATIC DUCTED INDOOR UNITS - 024-048 ................... 29

BLOWER DATA ..............................................................................................................30

SECTION 2.4 - MWMA WALL MOUNTED UNIT ..................................................................33

MODEL NUMBER IDENTIFICATION ..............................................................................34

SPECIFICATIONS - WALL-MOUNTED INDOOR UNITS - 009-012 .................................35

SPECIFICATIONS - WALL-MOUNTED INDOOR UNITS - 018-030 .................................35

SECTION 2.5 - MCFA CEILING/FLOOR UNIT ..................................................................... 36

MODEL NUMBER IDENTIFICATION ..............................................................................37

SPECIFICATIONS - CEILING/FLOOR MOUNT INDOOR UNITS - 012-024 ....................38

SPECIFICATIONS - CEILING/FLOOR MOUNT INDOOR UNITS - 036-048 ....................38

SECTION 3 - INSTALLATION DIMENSIONS OF OUTDOOR UNITS ...................................39

SECTION 3.1 - SINGLE ZONE INSTALLATION DIMENSIONS ............................................40

MPA009S4S, MPA012S4S, MPA018S4S Dimensions ...................................................41

MPA024S4S, MPA030S4S, MPA036S4S Dimensions ...................................................42

MPA048S4S Dimensions ...............................................................................................43

Lennox Mini-Split Service Manual / Page 3

SECTION 3.2 - MULTI-ZONE INSTALLATION DIMENSIONS ..............................................44

MPA018S4M Dimensions ................................................................................................45

MPA030S4M, MPA036S4M Dimensions ............................................................................ 46

MPA048S4M Dimensions ................................................................................................47

SECTION 3.3 - MPA OUTDOOR UNIT CLEARANCES ........................................................48

Outdoor Unit Clearances ..............................................................................................49

SECTION 4 - INSTALLATION DIMENSIONS OF INDOOR UNITS .......................................50

SECTION 4.1 - M22A COMPACT CASSETTE .....................................................................51

SECTION 4.2 - M33A CASSETTE UNIT ..............................................................................54

SECTION 4.3 - MMDA DUCTED UNIT .................................................................................57

SECTION 4.4 - MWMA WALL MOUNTED UNIT ..................................................................60

SECTION 4.5 - MCFA CEILING/FLOOR UNIT ..................................................................... 63

SECTION 5 - INDOOR UNIT COMBINATIONS ....................................................................66

MULTI-ZONE SYSTEM COMBINATIONS .......................................................................67

MULTI-ZONE SYSTEM COMBINATIONS .......................................................................69

SECTION 6 - REFRIGERATION PIPE WORK ......................................................................70

SECTION 6.1 - SINGLE ZONE REFRIGERANT CYCLE DIAGRAM ....................................71

SECTION 6.2 - MULTI-ZONE REFRIGERANT CYCLE DIAGRAM .......................................73

SECTION 6.1 - REFRIGERATION PIPE WORK FOR SINGE ZONE SYSTEMS ...................78

PIPING LIMITATIONS .....................................................................................................79

SECTION 6.2 - REFRIGERATION PIPE WORK FOR MULTI-ZONE SYSTEMS ...................80

CONNECTIONS AND LINE SET USAGE ........................................................................82

CONNECTIONS AND LINE SET USAGE ........................................................................83

CONNECTIONS AND LINE SET USAGE ........................................................................84

SECTION 7 - POWER WIRING FOR OUTDOOR & INDOOR UNITS ...................................85

SECTION 8 - DATA WIRING

036 & 048 SIZES ONLY ......................................................................................................86

SECTION 9 - WIRING DIAGRAMS ......................................................................................87

SECTION 9.1 - SINGLE ZONE WIRING DIAGRAMS ...........................................................88

115V MPA009S4S-1L and MPA012S4S-1L Outdoor Unit Wiring Diagram ..................89

208/230V MPA009S4S-1P and MPA012S4S-1P Outdoor Unit Wiring Diagram ..........89

208/230

V MPA018S4S-1P Outdoor Unit Wiring Diagram ................................................................90

208/230V MPA024S4S-1P Outdoor Unit Wiring Diagram .............................................90

Lennox Mini-Split Service Manual / Page 4

208/230V MPA030S4S-1P Outdoor Unit Wiring Diagram .............................................91

208/230V MPA036S4S-1P Outdoor Unit Wiring Diagram .............................................92

208/230V MPA048S4S-1P Outdoor Unit Wiring Diagram .............................................93

SECTION 9.1 - MULTI-ZONE WIRING DIAGRAMS .............................................................94

208/230V MPA018S4M-1P Outdoor Unit Wiring Diagram .............................................95

208/230V MPA030S4M-1P Outdoor Unit Wiring Diagram .............................................95

MPA036S4M-1P Outdoor Unit Wiring Diagram .............................................................96

MPA048S4M-1P Outdoor Unit Wiring Diagram .............................................................96

SECTION 9.1 - INDOOR UNIT WIRING DIAGRAMS ...........................................................97

MWMA Unit Wiring Diagram ..........................................................................................98

M22A009S4-1P, M22A012S4-1P, M22A018S4-1P, M33A024S4-1P Unit Wiring Diagram 99

M33A036S4-1P & M33A048S4-1P Unit Wiring Diagram ............................................... 100

MMDA024S4-1P Ducted Units Wiring Diagram ............................................................101

MMDA036S4-1P & MMDA048SA-1P Ducted Units Wiring Diagram .............................101

MMDA009S4-1P, MMDA012S4-1P, MMDAA018S4-1P Ducted Units Wiring Diagram .. 102

MCFA024S4-1P Unit Wiring Diagram ............................................................................103

MCFA036S4-1P Unit Wiring Diagram ............................................................................103

MCFA048S4-1P Unit Wiring Diagram ............................................................................104

SECTION 10 - CONDENSATE PIPE WORK INSTALLATION DATA ....................................105

SECTION 10.1 - OUTDOOR UNIT CONDENSATE PIPE ......................................................106

Condensate Piping Requirements - Outdoor Unit ....................................................... 107

SECTION 10.2 - INDOOR UNIT GRAVITY DRAIN ...............................................................108

Condensate Piping Requirements - MWMA & MCFA ...................................................109

SECTION 10.3 - INDOOR UNIT LIFT PUMP ........................................................................110

Condensate Piping Requirements - MMDA & M22A/M33A ..........................................111

MMDA .............................................................................................................................111

M22A and M33A .............................................................................................................112

SECTION 11 - CONTROLS ..................................................................................................113

SECTION 11.1 - M0STAT60Q WIRELESS CONTROLLER ..................................................114

SECTION 11.2 - M0STAT61Q-1 WIRED CONTROLLER ......................................................117

SECTION 12 - START UP ....................................................................................................119

SECTION 12.1 - GENERAL START UP INFORMATION ......................................................120

Outdoor Unit Spot Check Function ..............................................................................121

Outdoor unit’s digital display tube ...............................................................................125

Lennox Mini-Split Service Manual / Page 5

SECTION 13 - FAULT CODES .............................................................................................126

SECTION 13.1 - QUICK REFERENCE GUIDE - FAULT CODES ........................................128

Single Zone 009/012 115VAC/208-230VAC Outdoor Units Quick Reference ...............129

Single Zone 018/030 208-230VAC Outdoor Units Quick Reference ............................130

Multi-Zone Outdoor Units Quick Reference .................................................................131

Indoor Unit Fault Code Units Quick Reference For ALL Indoor Units ........................132

SECTION 13.2 - TROUBLESHOOTING SINGLE ZONE OUTDOOR UNITS .......................133

SECTION 13.3 - TROUBLESHOOTING MULTI-ZONE OUTDOOR UNITS ...........................140

E0 Fault Code ................................................................................................................143

E0 Flow Chart ................................................................................................................144

E2 Fault Code ................................................................................................................145

E2 Flowchart ..................................................................................................................146

E3 Fault Code ................................................................................................................149

E3 Flow Chart ................................................................................................................150

E4 Fault Code ................................................................................................................152

E4 Flow Chart ................................................................................................................153

E5 Fault Code ................................................................................................................154

E5 Flow Chart ................................................................................................................155

E6 Fault Code ................................................................................................................160

E6 Flow Chart ................................................................................................................161

E8 Fault Code ................................................................................................................164

E8 Flow Chart ................................................................................................................165

F1 Fault Code ................................................................................................................168

F1 Flow Chart ................................................................................................................169

F2 Fault Code ................................................................................................................170

F2 Flow Chart ................................................................................................................171

F3 Fault Code ................................................................................................................172

F3 Flow Chart ................................................................................................................173

F4 Fault Code ................................................................................................................174

F4 Flow Chart ................................................................................................................175

F5 Fault Code ................................................................................................................176

F5 Flow Chart ................................................................................................................177

F6 Fault Code ................................................................................................................178

P1 Fault Code ................................................................................................................179

P1 Flow Chart ................................................................................................................180

P2 Fault Code ................................................................................................................182

P2 Flow Chart ................................................................................................................183

P3 Fault Code ................................................................................................................185

P3 Flow Chart ................................................................................................................186

P4 Fault Code ................................................................................................................188

P4 Flow Chart ................................................................................................................189

P5 Fault Code ................................................................................................................190

P5 Flow Chart ................................................................................................................191

P6 Fault Code ................................................................................................................192

P6 Flowchart ..................................................................................................................193

Lennox Mini-Split Service Manual / Page 6

SECTION 13.4 - INDOOR UNIT FAULT CODES ..................................................................194

E0 Fault Code ................................................................................................................197

E0 Flowchart ..................................................................................................................198

E1 Fault Code ................................................................................................................199

E1 Flow Chart ................................................................................................................200

E3 Fault Code ................................................................................................................202

E3 Flow Chart ................................................................................................................203

E4 Fault Code ................................................................................................................204

E4 Flow Chart ................................................................................................................205

E5 Fault Code ................................................................................................................206

E5 Flow Chart ................................................................................................................207

EC Fault Code ................................................................................................................208

EC Flow Chart ................................................................................................................209

EE Fault Code ................................................................................................................210

EE Flow Chart ................................................................................................................211

F0 Fault Code ................................................................................................................212

F0 Flow Chart ................................................................................................................213

F1 Fault Code ................................................................................................................214

F1 Flow Chart ................................................................................................................215

F2 Fault Code ................................................................................................................216

F2 Flow Chart ................................................................................................................217

F3 Fault Code ................................................................................................................218

F3 Flow Chart ................................................................................................................219

F4 Fault Code ................................................................................................................220

F4 Flow Chart ................................................................................................................221

F5 Fault Code ................................................................................................................222

F5 Flow Chart ................................................................................................................223

F6 Fault Code ................................................................................................................224

F6 Flow Chart ................................................................................................................225

P0 Fault Code ................................................................................................................226

P0 Flowchart ..................................................................................................................227

P1 Fault Code ................................................................................................................228

P1 Flow Chart ................................................................................................................229

P3 Fault Code ................................................................................................................230

P3 Flow Chart ................................................................................................................231

P4 Fault Code ................................................................................................................232

P4 Flow Chart ................................................................................................................233

P5 / -- Fault Code ...........................................................................................................234

P6 Fault Code ................................................................................................................235

P6 Flow Charts ..............................................................................................................236

P7 Fault Code ................................................................................................................239

P7 Flow Chart ................................................................................................................240

Appendix 1 .....................................................................................................................241

Temperature Sensor Resistance Value Table (°C--K) ..................................................241

Appendix 2 .....................................................................................................................242

Discharge Temperature Sensor Table (°C--K) ..............................................................242

Appendix 3 .....................................................................................................................243

Celsius to Fahrenheit Conversion Table .....................................................................243

Compressor Check ........................................................................................................244

IPM Check ......................................................................................................................245

Lennox Mini-Split Service Manual / Page 7

AC Fan Motor .................................................................................................................246

4-Way Valve ...................................................................................................................247

EXV Check ....................................................................................................................248

Low Voltage Protection .................................................................................................251

Compressor Current Limit Protection ..........................................................................251

Electronic Functions Abbreviations .............................................................................252

Electronic Control Working Environment ....................................................................252

Main Protection .............................................................................................................252

Compressor Preheating Functions ..............................................................................253

Compressor Crankcase Heater .....................................................................................253

Capacity Request Calculation ......................................................................................254

Defrost Control ..............................................................................................................256

Outdoor Fan Control .....................................................................................................257

Four-Way Valve Control ................................................................................................258

Electronic Expansion Valve (EXV) Control ..................................................................258

Lennox Mini-Split Service Manual / Page 8

SECTION 1 - OUTDOOR UNIT DATA

Lennox Mini-Split Service Manual / Page 9

SECTION 1.1 - MPA SINGLE ZONE

CONDENSING UNITS

Lennox Mini-Split Service Manual / Page 10

MODEL NUMBER IDENTIFICATION

OUTDOOR SINGLE ZONE HEAT PUMP UNITS

M P A 009 S 4 S - 1 P

Series Type

M = Mini-Split

Unit Type

P = Heat Pump

Major Design Sequence

A = 1st Generation

B = 2nd Generation

Nominal Cooling Capacity

009 = 0.75 tons

012 = 1 tons

018 = 1.5 tons

024 = 2 tons

030 = 2.5 tons

036 = 3 tons 048 = 4 tons

OUTDOOR MULTI-ZONE HEAT PUMP UNITS

M P A 036 S 4 M - 1 P

Voltage

L = 115V-1 phase-60hz P = 208/230V-1 phase-60hz

Minor Design Sequence

1 = 1st Revision

Refrigerant Circuits

S = Single Circuit

Refrigerant Type

4 = R-410A

Cooling Efﬁ ciency

S = Standard Efﬁ ciency

Series Type

M = Mini-Split

Unit Type

P = Heat Pump

Major Design Sequence

A = 1st Generation

B = 2nd Generation

Nominal Cooling Capacity

018 = 1.5 tons 030 = 2.5 tons

036 = 3 tons 048 = 4 tons

Voltage

P = 208/230V-1 phase-60hz

Minor Design Sequence

1 = 1st Revision

Refrigerant Circuits

M = Multiple Circuits

Refrigerant Type

4 = R-410A

Cooling Efﬁ ciency

S = Standard Efﬁ ciency

Lennox Mini-Split Service Manual / Page 11

SPECIFICATIONS - 0.75 - 1 TON MPA OUTDOOR UNITS - 115V-1 PHASE

Nominal Size - Tons 0.75 1 Outdoor Unit Model No. MPA009S4S-1L MPA012S4S-1L

Input - Cooling/Heating (W) 620 / 870 888 / 1092

Rated current - Cooling/Heating (A) 5.4 / 7.6 7.7 / 9.5

Ambient Temperature Operating Range - °F

Sound Data (dBA) Cooling 51 52

Refrigerant Charge furnished (R-410A) 2 lbs. 12 oz. 2 lbs. 12 oz.

Maximum line length with furnished charge - ft. 25 25

Additional charge required per ft. - oz. 0.16 0.16

Compressor No. and Type (1) Rotary (1) Rotary

Refrigerant oil type Ester Oil VG74 Ester Oil VG74

Refrigerant oil charge - oz. 12.5 12.5

Low ambient cut-off -13°F -13°F

Connections - in. Liquid/Gas pipe (ﬂ are) 1/4 / 3/8 1/4 / 1/2

Maximum refrigerant pipe length - ft. 98 98

Max. difference in level of indoor unit - ft. 40 40

Outdoor Fan

(No.) Diameter - in. (1) - 16.5 (1) - 16.5

Total air volume - cfm 1180 1180

Outdoor Coil Number of rows 2 2

Tube outside diameter - in. 1/4 1/4

Net face area - ft.

Design Pressure PSIG 550/340 550/340 Shipping Data Net/Shipping weight (lbs.) 83 / 88 83 / 88

Electrical Characteristics - 60 Hz - 1 Phase 115V 115V

Maximum Overcurrent Protection (amps) 20 20

Minimum circuit ampacity 15 15

Compressor Rated load amps 9 10

Outdoor Fan

Rated load amps 0.6 0.6

Motor

NOTE - Extremes of operating range are plus and minus 10% of line voltage.

HACR type circuit breaker or fuse.

Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements.

Cooling 5 - 122 5 - 122

Heating –13 - 86 –13 - 86

Heating 54 54

rpm 850 850

Fins per inch 21 21

Fin type Hydrophilic aluminium

Tube type Riﬂ ed copper tubing

4.72 4.72

ELECTRICAL DATA

Output - W 40 40

Lennox Mini-Split Service Manual / Page 12

SPECIFICATIONS - 0.75 - 1.5 TON MPA OUTDOOR UNITS - 208/230V-1 PHASE

Nominal Size - Tons 0.75 1 1.5 Outdoor Unit Model No. MPA009S4S-1P MPA012S4S-1P MPA018S4S-1P Ambient Temperature

Operating Range - °F

Sound Data (dBA) Cooling 53 54 61

Refrigerant Charge furnished (R-410A) 2 lbs. 12 oz. 2 lbs. 12 oz. 4 lbs. 3 oz.

Maximum line length with furnished charge - ft. 25 25 25

Additional charge required per ft. - oz. 0.16 0.16 0.16

Compressor No. and Type (1) Rotary (1) Rotary (1) Rotary

Refrigerant oil type Ester Oil VG74 Ester Oil VG74 Ester Oil VG74

Refrigerant oil charge - oz. 12.5 12.5 15.2

Low ambient cut-off -13°F -13°F -13°F

Connections - in. Liquid/Gas pipe (ﬂ are) 1/4 / 3/8 1/4 / 1/2 1/4 / 1/2

Maximum refrigerant pipe length - ft. 98 98 98

Max. difference in level of indoor unit - ft. 40 40 66

Outdoor Fan

(No.) Diameter - in. (1) - 16.5 (1) - 16.5 (1) - 18

Total air volume - cfm 1120 1180 1470

Outdoor Coil Number of rows 2 2 3

Tube outside diameter - in. 1/4 1/4 1/4

Net face area - ft.

Design Pressure PSIG 550/340 550/340 550/340 Shipping Data Net/Shipping weight (lbs.) 83 / 88 83 / 88 111 / 120

Electrical Characteristics - 60 Hz - 1 Phase 208/230V 208/230V 208/230V

Maximum Overcurrent Protection (amps) 15 15 20

Minimum circuit ampacity 15 15 13

Compressor Rated load amps 5.3 5.7 9.5

Outdoor Fan

Rated load amps 0.42 0.42 0.5

Motor

NOTE - Extremes of operating range are plus and minus 10% of line voltage.

HACR type circuit breaker or fuse.

Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements.

Cooling 5 - 122 5 - 122 5 - 122

Heating –13 - 86 –13 - 86 –13 - 86

Heating 55 57 62

rpm 800 800 800

Fins per inch 21 21 18

Fin type Hydrophilic aluminium

Tube type Riﬂ ed copper tubing

4.72 4.72 5.42

ELECTRICAL DATA

Output - W 40 40 50

Lennox Mini-Split Service Manual / Page 13

SPECIFICATIONS - 2 - 4 TON MPA OUTDOOR UNITS - 208/230V-1 PHASE

Nominal Size - Tons 2 2.5 3 4 Outdoor Unit Model No. MPA024S4S-1P MPA030S4S-1P MPA036S4S-1P MPA048S4S-1P Ambient Temperature Operating

Range - °F

Sound Data (dBA) Cooling 59 59 62 63

Refrigerant Charge furnished (R-410A) 5 lbs. 3 oz. 6 lbs. 10 oz. 7 lbs. 13 oz. 9 lbs. 8 oz.

Maximum line length with furnished charge - ft. 25 25 25 25

Additional charge required per ft. - oz. 0.32 0.32 0.32 0.32

Compressor No. and Type Twin-Rotary Rotary Twin-Rotary Twin-Rotary

Refrigerant oil type Ester Oil VG74 FY50S FV50S FV50S

Refrigerant oil charge - oz. 27.7 36.1 36.1 47.3

Low ambient cut-off -13°F -13°F -13°F -13°F

Connections - in. Liquid/Gas pipe (ﬂ are) 3/8 / 5/8 3/8 / 5/8 3/8 / 5/8 3/8 / 5/8

Maximum refrigerant pipe length - ft. 164 164 213 213

Max. difference in level of indoor unit - ft. 82 82 98 98

Outdoor Fan

(No.) Diameter - in. (1) - 22 (1) - 22 (1) - 22 (2) - 20

Total air volume - cfm 2355 2530 2940 4240

Outdoor Coil Number of rows 2.6 2.6 2.6 2

Tube outside diameter - in. 1/4 1/4 3/8 5/16

Net face area - ft.

Design Pressure PSIG 550/340 550/340 550/340 550/340 Shipping Data Net/Shipping weight (lbs.) 134 / 144 158 / 170 161 / 183 220 / 251

Electrical Characteristics - 60 Hz - 1 Phase 208/230V 208/230V 208/230V 208/230V

Maximum Overcurrent Protection (amps) 25 30 50 60

Minimum circuit ampacity 15 20 30 35

Compressor Rated load amps 12 14 22 23.5

Outdoor Fan Motor Rated load amps 0.7 1.0 1.0 (2) 0.7

NOTE - Extremes of operating range are plus and minus 10% of line voltage.

HACR type circuit breaker or fuse.

Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements.

Cooling 5 - 122 5 - 122 5 - 122 5 - 122

Heating –13 - 86 –13 - 86 –13 - 76 –13 - 76

Heating 63 61 65 65

rpm 850/750/700 950/800/750 950 860

Fins per inch 18 16 14 16

Fin type Hydrophilic aluminium

Tube type Riﬂ ed copper tubing

8.12 7.79 / 4.75 8.16 / 4.75 14.14

ELECTRICAL DATA

Output - W 120 120 120 (2) 85

Lennox Mini-Split Service Manual / Page 14

SECTION 1.2 - MPA MULTI-ZONE

CONDENSING UNIT

Lennox Mini-Split Service Manual / Page 15

SPECIFICATIONS - 1.5 - 2.5 TON MPA OUTDOOR UNITS

Nominal Size - Tons 1.5 2.5 Outdoor Unit Model No. MPA018S4M-1P MPA030S4M-1P Number of Zones 2 Up to 3

AHRI

Ratings

High Temperature Heating - Btuh 18,000 18,500 32,000 32,000

Low Temperature Heating - Btuh 10,900 11,000 20,000 20,000

AHRI Reference Number 8129621 8129607 8129624 8129613

Energy Star Yes N o Ambient Temperature Range - °F Cooling 5 - 122 5 - 122

Sound Data (dBA) Cooling 57 59

Refrigerant Charge furnished (R-410A) 4 lbs. 4 oz. 6 lbs. 3 oz.

Maximum line length with furnished charge (per zone) - ft. 25 25

Additional charge required per ft. - oz. 0.161 0.161

Compressor No. and Type Twin-Rotary Twin-Rotary

Refrigerant oil charge - oz. 16.9 27.7

Connections - in. Liquid+Gas pipe (ﬂ are) (2) 1/4 + (2) 3/8 (3) 1/4 + (3) 3/8

Maximum length for all rooms - ft. 98 148

Maximum length for one indoor unit - ft. 66 82

Maximum height

Outdoor unit higher than indoor

difference between

indoor unit and

outdoor unit

Outdoor unit lower than indoor

Maximum difference in level between indoor units - ft. 33 33

Outdoor Fan

Total air volume - cfm 1470 2060

Outdoor Coil Number of rows 2 1.6

Tube outside diameter - in. 3/8 3/8

Design Pressure PSIG 550/340 550/340 Shipping Data Net/Shipping weight (lbs.) 106 / 115 144 / 155

Electrical Characteristics - 60 Hz - 1 Phase 208/230V 208/230V

Maximum Overcurrent Protection (amps) 20 25

Minimum circuit ampacity 15 19

Compressor Rated load amps 10 12

Outdoor Fan Motor Rated load amps 0.74 0.90

NOTE - Per AHRI, the certiﬁ ed ratings for systems are valid for all combinations of indoor units with the speciﬁ c outdoor units listed above and in the AHRI Directory of Certiﬁ ed Equipment. Please visit http://www.ahridirectory.org for further details and latest updates.

Ratings are AHRI certiﬁ ed to AHRI Standard 210/240-2008;

• Cooling Ratings - 80°F dry bulb/67°F wet bulb entering indoor coil air and 95°F dry bulb/75°F wet bulb outdoor air temperature.

• High Temperature Heating Ratings - 70°F dry bulb/60°F wet bulb entering indoor coil air and 47°F dry bulb/43°F wet bulb outdoor air temperature.

• Low Temperature Heating Ratings - 70°F dry bulb/60°F wet bulb entering indoor coil air and 17°F dry bulb/15°F wet bulb outdoor air temperature.

NOTE - Extremes of operating range are plus and minus 10% of line voltage.

HACR type circuit breaker or fuse.

Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements.

NOTE - Adaptors are furnished for the gas pipe connections: 018 - (2) 3/8 x 1/2 in. 030 - (3) 3/8 x 1/2 in.

System Type Ducted Non-Ducted Ducted Non-Ducted

Cooling - Btuh 17,000 18,000 27,000 25,000

SEER 18.00 21.00 16.50 22.00

EER 12.50 12.50 9.50 12.50

HSPF (Region IV) 8.5 9.6 8.8 9.6

Heating –13 - 76 –13 - 76

Heating 62 62

Refrigerant oil type ESTER OIL VG74 ESTER OIL VG74

Low ambient cut-off

33 33

unit - ft.

49 49

unit - ft.

(No.) Diameter - in. (1) - 18 (1) - 22

rpm 750 850

Fins per inch 14 15

Fin type Hydrophilic aluminium

Tube type Riﬂ ed copper tubing

Net face area - ft.

4.9 6.42

ELECTRICAL DATA

Output - W 50 120

Lennox Mini-Split Service Manual / Page 16

SPECIFICATIONS - 3 - 4 TON MPA OUTDOOR UNITS

Nominal Size - Tons 3 4 Outdoor Unit Model No. MPA036S4M-1P MPA048S4M-1P Number of Zones Up to 4 Up to 5

AHRI

Ratings

High Temperature Heating - Btuh 36,000 36,000 51,000 49,000

Low Temperature Heating - Btuh 24,400 23,400 31,800 31,200

AHRI Reference Number 8129615 8129614 8129617 8129616

Energy Star Yes N o Ambient Temperature Range - °F Cooling 5 - 122 5 - 122

Sound Data (dBA) Cooling 62 58

Refrigerant Charge furnished (R-410A) 7 lbs. 15 oz. 9 lbs. 8 oz.

Maximum line length with furnished charge (per zone) - ft. 25 25

Additional charge required per ft. - oz. 0.161 0.161

Compressor No. and Type Twin-Rotary Twin-Rotary

Refrigerant oil charge - oz. 36.2 47.3

Connections - in. Liquid+Gas+Gas pipe (ﬂ are) (4) 1/4 + (3) 3/8 + (1) 1/2 (5) 1/4 + (3) 3/8 + (2) 1/2

Maximum length for all rooms - ft. 197 246

Maximum length for one indoor unit - ft. 98 98

Maximum height

Outdoor unit higher than indoor

difference between

indoor unit and

Outdoor unit lower than indoor

outdoor unit

Maximum difference in level between indoor units - ft. 33 33

Outdoor Fan

Total air volume - cfm 2240 (2) 4240

Outdoor Coil Number of rows 2.6 2

Tube outside diameter - in. 5/16 5/16

Design Pressure PSIG 550/340 550/340 Shipping Data Net/Shipping weight (lbs.) 162 / 174 218 / 245

Electrical Characteristics - 60 Hz - 1 Phase 208/230V 208/230V

Maximum Overcurrent Protection (amps) 45 50

Minimum circuit ampacity 27 29

Compressor Rated load amps 19.5 22

Outdoor Fan Motor Rated load amps 1.30 (2) 0.9

Ratings are AHRI certiﬁ ed to AHRI Standard 210/240-2008;

• Cooling Ratings - 80°F dry bulb/67°F wet bulb entering indoor coil air and 95°F dry bulb/75°F wet bulb outdoor air temperature.

• High Temperature Heating Ratings - 70°F dry bulb/60°F wet bulb entering indoor coil air and 47°F dry bulb/43°F wet bulb outdoor air temperature.

• Low Temperature Heating Ratings - 70°F dry bulb/60°F wet bulb entering indoor coil air and 17°F dry bulb/15°F wet bulb outdoor air temperature.

NOTE - Extremes of operating range are plus and minus 10% of line voltage.

HACR type circuit breaker or fuse.

Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements.

NOTE - Adaptors are furnished for the gas pipe connections: 036 - (3) 3/8 x 1/2 in. and (1) 1/2 x 3/8 in. 048 - (3) 3/8 x 1/2 in., (2) 1/2 x 3/8 in., (2) 1/4 x 3/8 in. and (2) 1/2 x 5/8 in.

System Type Ducted Non-Ducted Ducted Non-Ducted

Cooling - Btuh 34,000 36,000 42,000 42,000

SEER 15.00 18.00 18.00 20.00

EER 8.20 8.80 11.00 12.50

HSPF (Region IV) 9.3 10.0 9.5 10.0

Heating –13 - 76 –13 - 76

Heating 64 62

Refrigerant oil type FV50S FV50S

Low ambient cut-off

33 33

unit - ft.

49 49

unit - ft.

(No.) Diameter - in. (1) - 22 (2) - 20

rpm 950 (2) 800

Fins per inch 15 15

Fin type Hydrophilic aluminium

Tube type Riﬂ ed copper tubing

Net face area - ft.

6.42 14.33

ELECTRICAL DATA

Output - W 120 (2) 85

Lennox Mini-Split Service Manual / Page 17

SECTION 2 - INDOOR UNIT DATA

Lennox Mini-Split Service Manual / Page 18

SECTION 2.1 - M22A COMPACT CASSETTE

UNIT

Lennox Mini-Split Service Manual / Page 19

MODEL NUMBER IDENTIFICATION

CASSETTE NON-DUCTED INDOOR UNITS

M 22 A 012 S 4 - 1 P

Series Type

M = Mini-Split

Unit Type

22 = 2x2 Cassette Non-Ducted Unit 33 = 3x3 Cassette Non-Ducted Unit

Major Design Sequence

A = 1st Generation

B = 2nd Generation

Nominal Cooling Capacity

009 = .75 tons

012 = 1 tons

018 = 1.5 tons

024 = 2 tons 036 = 3 tons 048 = 4 tons

Voltage

P = 208/230V-1 phase-60hz

Minor Design Sequence

1 = 1st Revision

Refrigerant Type

4 = R-410A

Cooling Efﬁ ciency

S = Standard Efﬁ ciency

Lennox Mini-Split Service Manual / Page 20

SPECIFICATIONS - CASSETTE INDOOR UNITS - M22A009-018

Model No. M22A009S4-1P M22A012S4-1P M22A018S4-1P

Nominal Tons 0.75 1 1.5

Power Supply - 60 hz - 1 phase 208/230V 208/230V 208/230V

Rated load amps 0.9 1.0 1.5

Output (W) 46 46 46

Air Volume - cfm (High/Medium/Low) 380/320/260 400/340/280 420/350/290

Sound Data (dBA) - Low/Medium/High 37/39/41 35/38/41 41/43/46

Piping Connections - Liquid/Gas - o.d. - ﬂ are - in. 1/4 / 3/8 1/4 / 1/2 1/4 / 1/2

Drain connection o.d. - in. 1 1 1

Net/Shipping weights - lbs. Body 36 / 42 36 / 42 40 / 47

REQUIRED COMPONENTS - ORDERED SEPARATELY

Cassette Panel 13X04 (M0STAT62Q-1) 13X04 (M0STAT62Q-1) 13X04 (M0STAT62Q-1)

Net/Shipping weights - lbs. 6 / 10 6 / 10 6 / 10

Lennox Mini-Split Service Manual / Page 21

SOUND DATA

Lennox Mini-Split Service Manual / Page 22

AIR THROW DATA

Lennox Mini-Split Service Manual / Page 23

SECTION 2.2 - M33A CASSETTE UNIT

Lennox Mini-Split Service Manual / Page 24

MODEL NUMBER IDENTIFICATION

CASSETTE NON-DUCTED INDOOR UNITS

M 33 A 012 S 4 - 1 P

Series Type

M = Mini-Split

Unit Type

22 = 2x2 Cassette Non-Ducted Unit 33 = 3x3 Cassette Non-Ducted Unit

Major Design Sequence

A = 1st Generation

B = 2nd Generation

Nominal Cooling Capacity

009 = .75 tons

012 = 1 tons

018 = 1.5 tons

024 = 2 tons 036 = 3 tons 048 = 4 tons

Voltage

P = 208/230V-1 phase-60hz

Minor Design Sequence

1 = 1st Revision

Refrigerant Type

4 = R-410A

Cooling Efﬁ ciency

S = Standard Efﬁ ciency

Lennox Mini-Split Service Manual / Page 25

SPECIFICATIONS - CASSETTE INDOOR UNITS - M33A024-048

Model No. M33A024S4-1P M33A036S4-1P M33A048S4-1P

Nominal Tons 2 3 4

Power Supply - 60 hz - 1 phase 208/230V 208/230V 208/230V

Rated load amps 2 1.5 1.6

Output (W) 42 124 124

Air Volume - cfm (High/Medium/Low) 820/740/590 1060/940/820 1190/1000/850

Sound Data (dBA) - Low/Medium/High 43/47/51 44/47/52 44/48/52

Piping Connections - Liquid/Gas - o.d. - ﬂ are - in. 3/8 / 5/8 3/8 / 5/8 3/8 / 5/8

Drain connection o.d. - in. 1-1/4 1-1/4 1-1/4

Net/Shipping weights - lbs. Body 46 / 53 56 / 63 64 / 74

REQUIRED COMPONENTS - ORDERED SEPARATELY

Cassette Panel 13X05 (M0STAT63Q-1) 13X05 (M0STAT63Q-1) 13X05 (M0STAT63Q-1)

Net/Shipping weights - lbs. 12 / 18 12 / 18 12 / 18

Lennox Mini-Split Service Manual / Page 26

SECTION 2.3 - MMDA DUCTED UNIT

Lennox Mini-Split Service Manual / Page 27

MODEL NUMBER IDENTIFICATION

MEDIUM STATIC DUCTED INDOOR UNITS

M MD A 012 S 4 - 1 P

Series Type

M = Mini-Split

Unit Type

MD = Medium Static Ducted Unit

Major Design Sequence

A = 1st Generation

B = 2nd Generation

Nominal Cooling Capacity

009 = .75 tons

012 = 1 tons

018 = 1.5 tons

024 = 2 tons 036 = 3 tons 048 = 4 tons

Voltage

P = 208/230V-1 phase-60hz

Minor Design Sequence

1 = 1st Revision

Refrigerant Type

4 = R-410A

Cooling Efﬁ ciency

S = Standard Efﬁ ciency

Lennox Mini-Split Service Manual / Page 28

SPECIFICATIONS - MEDIUM STATIC DUCTED INDOOR UNITS - 009-018

Model No. MMDA009S4-1P MMDA012S4-1P MMDA018S4-1P

Nominal Tons 0.75 1 1.5

Power Supply - 60 hz - 1 phase 208/230V 208/230V 208/230V

Rated load amps 0.9 1 1.5

Output (W) 55 55 90

Air Volume - cfm (High/Medium/Low) 400/330/270 400/330/270 485/380/320

Sound Data (dBA) - Low/Medium/High 31/34/37 32/36/39 31/33/35

Piping Connections - Liquid/Gas - o.d. - ﬂ are - in. 1/4 / 3/8 1/4 / 1/2 1/4 / 1/2

Drain connection o.d. - in. 1 1 1

Net/Shipping weights - lbs. 40 / 51 40 / 51 51 / 64

SPECIFICATIONS - MEDIUM STATIC DUCTED INDOOR UNITS - 024-048

Model No. MMDA024S4-1P MMDA036S4-1P MMDA048S4-1P

Nominal Tons 2 3 4

Power Supply - 60 hz - 1 phase 208/230V 208/230V 208/230V

Rated load amps 2 1.5 1.8

Output (W) 90 150 240

Air Volume - cfm (High/Medium/Low) 800/675/585 910/800/630 1280/1100/920

Sound Data (dBA) - Low/Medium/High 45/47/50 45/49/53 41/44/47

Piping Connections - Liquid/Gas - o.d. - ﬂ are - in. 3/8 / 5/8 3/8 / 5/8 3/8 / 5/8

Drain connection o.d. - in. 1 1 1

Net/Shipping weights - lbs. 58 / 69 78 / 93 100 / 117

Lennox Mini-Split Service Manual / Page 29

BLOWER DATA

MMDA009S4-1P, MMDA012S4-1P

Low Speed

0.20

0.18

0.16

0.14

0.12

0.10

0.08

External Static Pressure - in. w.g.

0.06

0.04

0.02

0.00 160 260 360

Air Volume - cfm Air Volume - cfm

Medium Speed

0.20

0.15

0.10

External Static Pressure - in. w.g.

0.05

0.00

150 200 250 300 350 400

High Speed

0.30

0.25

0.20

0.15

0.10

External Static Pressure - in. w.g.

0.05

0.00 170 220 270 320 370 420 470

Air Volume - cfm

MMDA018S4-1P

Low Speed

0.16

0.14

0.12

0.10

0.08

0.06

External Static Pressure - in. w.g.

0.04

0.02

0.00 150 250 350 450

Air Volume - cfm Air Volume - cfm

Medium Speed

0.24

0.22

0.20

0.18

0.16

0.14

0.12

0.10

0.08

External Static Pressure - in. w.g.

0.06

0.04

0.02

0.00 130 230 330 430 530

High Speed

0.28

0.26

0.24

0.22

0.20

0.18

0.16

0.14

0.12

0.10

External Static Pressure - in. w.g.

0.08

0.06

0.04

0.02

0.00 150 250 350 450 550 650

Air Volume - cfm

Lennox Mini-Split Service Manual / Page 30

+ 228 hidden pages

Lennox MPA018S4S-1P, MPA009S4S-1P, MPA024S4S-1P, MPA030S4S-1P, MPA036S4S-1P Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual