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Lennox MWMA009S4-*P, Installation Instructions Manual

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Lennox MWMA009S4-*P Installation Instructions Manual Download Page 11

11

Indoor / Outdoor Unit Match-Ups

Each system is formed of one outdoor unit and a selection 

of indoor units as referenced in the Product Specifications 

(EHB). Only these combinations are allowed. 

NOTE: 

Each indoor unit must be piped AND wired to 

the correct zone piping connections and wiring 

terminals. Make sure that indoor unit A is wired 

to the zone A terminal block and connected to the 

appropriate refrigerant pipe connections. 

Table 4. Match-Ups

Outdoor 

Model

No. of 

Zones

Indoor Unit 

Capacity 

(Unit No.)

Line Set 

Required 

(Liquid x Gas)

MPA018S4M
MPB018S4M

Indoor Unit A 

1/4” liq + 3/8” gas
Indoor Unit B

 

1/4” liq + 3/8” gas

1

012 (A)

1

 1/4 in. x 1/2 in.

2

009 (A)

1/4 in. x 3/8 in.

009 (B)

1/4 in. x 3/8 in.

2

009 (B)

1/4 in. x 3/8 in.

012 (A)

1

 1/4 in. x 1/2 in.

2

012 (A)

1

 1/4 in. x 1/2 in.

012 (B)

1

 1/4 in. x 1/2 in.

MPA030S4M 

MPB030S4M

Indoor Unit A 

1/4” liq + 3/8” gas
Indoor Unit B

 

1/4” liq + 3/8” gas

Indoor Unit C 

1/4” liq + 3/8” gas

1

018 (A)

1

 1/4 in. x 1/2 in.

2

009 (A)

1/4 in. x 3/8 in.

009 (B)

1/4 in. x 3/8 in.

2

009 (B)

1/4 in. x 3/8 in.

012 (A)

1

 1/4 in. x 1/2 in.

2

009 (B)

1/4 in. x 3/8 in.

018 (A)

1

 1/4 in. x 1/2 in.

2

012 (A)

1

 1/4 in. x 1/2 in.

012 (B)

1

 1/4 in. x 1/2 in.

2

012 (B)

1

 1/4 in. x 1/2 in.

018 (A)

1

 1/4 in. x 1/2 in.

2

018 (A)

1

 1/4 in. x 1/2 in.

018 (B)

1

 1/4 in. x 1/2 in.

3

009 (A)

1/4 in. x 3/8 in.

009 (B)

1/4 in. x 3/8 in.

009 (C)

1/4 in. x 3/8 in.

3

009 (B)

1/4 in. x 3/8 in.

009 (C)

1/4 in. x 3/8 in.

012 (A)

1

 1/4 in. x 1/2 in.

Table 4. Match-Ups

Outdoor 

Model

No. of 

Zones

Indoor Unit 

Capacity 

(Unit No.)

Line Set 

Required 

(Liquid x Gas)

MPA030S4M 

MPB030S4M

Indoor Unit A 

1/4” liq + 3/8” gas
Indoor Unit B

 

1/4” liq + 3/8” gas

Indoor Unit C 

1/4” liq + 3/8” gas

3

009 (C)

1/4 in. x 3/8 in.

012 (A)

1

 1/4 in. x 1/2 in.

012 (B)

1

 1/4 in. x 1/2 in.

3

009 (B)

1/4 in. x 3/8 in.

009 (C)

1/4 in. x 3/8 in.

018 (A)

1

 1/4 in. x 1/2 in.

3

012 (A)

1

 1/4 in. x 1/2 in.

012 (B)

1

 1/4 in. x 1/2 in.

012 (C)

1

 1/4 in. x 1/2 in.

MPA036S4M 

MPB036S4M

Indoor Unit A 

1/4” liq + 1/2” gas
Indoor Unit B

 

1/4” liq + 3/8” gas

Indoor Unit C 

1/4” liq + 3/8” gas
Indoor Unit D

 

1/4” liq + 3/8” gas

2

009 (B)

1/4 in. x 3/8 in.

018 (A)

1/4 in. x 1/2 in.

2 

4

009 (B)

1/4 in. x 3/8 in.

024 (A)

2,3 

3/8 in. x 5/8 in.

2

012 (A)

1/4 in. x 1/2 in.

012 (B)

1

 1/4 in. x 1/2 in.

2 

4

012 (B)

1

 1/4 in. x 1/2 in.

024 (A)

2,3 

3/8 in. x 5/8 in.

2

012 (B)

1

 1/4 in. x 1/2 in.

018 (A)

1/4 in. x 1/2 in.

2

018 (A)

1/4 in. x 1/2 in.

018 (B)

1

 1/4 in. x 1/2 in.

3

009 (B)

1/4 in. x 3/8 in.

009 (C)

1/4 in. x 3/8 in.

009 (D)

1/4 in. x 3/8 in.

3

009 (B)

1/4 in. x 3/8 in.

009 (C)

1/4 in. x 3/8 in.

012 (A)

1/4 in. x 1/2 in.

3

009 (B)

1/4 in. x 3/8 in.

009 (C)

1/4 in. x 3/8 in.

018 (A)

1/4 in. x 1/2 in.

3

009 (C)

1/4 in. x 3/8 in.

012 (A)

1/4 in. x 1/2 in.

012 (B)

1

 1/4 in. x 1/2 in.

Summary of Contents for MWMA009S4-*P

Page 1: ...should be consulted before installation The MWMA MWMB M22A M33A M33B MMDA MCFA and MCFB indoor units are matched with a two to five port multi zone outdoor heat pump unit to create a mini split system...

Page 2: ...oor Units Indoor Unit Voltage Indoor Unit Voltage MWMA009S4 P 208 230V M33A024S4 P1 208 230V MWMA012S4 P 208 230V MMDA009S4 P 208 230V MWMA018S4 P 208 230V MMDA012S4 P 208 230V MWMA024S4 P1 208 230V M...

Page 3: ...line shut off valve Port A Wiring Condensate drain line wrapped in foam insulation Refrigerant Line Set Condensate Line And Indoor Outdoor Cable field provided TAPE Line set wrapped in foam insulatio...

Page 4: ...M P MPB036S4M P inches 40 3 4 26 1 2 31 7 8 15 1 8 15 7 8 mm 1035 673 810 386 403 MPB048S4M P inches 41 3 4 25 52 1 2 16 3 8 15 7 8 mm 1060 634 1333 415 404 MLA018S4M P MLA030S4M P inches 40 5 8 26 1...

Page 5: ...very high level of sound trans mission Install unit level Ground Level Building Structure Figure 4 Install Unit Level Choose a place solid enough to bear the weight and vibration of the unit where th...

Page 6: ...w Figure 8 Avoid Defrost Water Ice Hazard Prevailing Winds Normally wind baffles are not required for a outdoor unit However in order to maximize reliability and performance the following best practic...

Page 7: ...ed when installed on a concrete pad or the ground to allow drainage to occur If the heat pump unit is installed on wall mounting bracket insert the provided drain connector into one of the 1 inch 25 m...

Page 8: ...en one of the flare nuts to release the factory nitrogen charge from the indoor units only 4 Remove the flare nuts from the connections on the unit and discard the seal from each of the piping connect...

Page 9: ...refer to the installation instruction included with the indoor unit for setup IMPORTANT Pipe and wire to each zone separately Test each indoor unit separately to ensure proper operation Connecting Mul...

Page 10: ...MPB 49 ft 15 m NOTE Minimum Line Set Length 10 ft 3 m per Indoor Unit Outdoor Unit Model No MPA018S4M P MPB018S4M P MLA018S4M P MPA030S4M P MPB030S4M P MLA030S4M P MPA036S4M P MPB036S4M P MLA036S4M P...

Page 11: ...4 in x 1 2 in 2 018 A 1 1 4 in x 1 2 in 018 B 1 1 4 in x 1 2 in 3 009 A 1 4 in x 3 8 in 009 B 1 4 in x 3 8 in 009 C 1 4 in x 3 8 in 3 009 B 1 4 in x 3 8 in 009 C 1 4 in x 3 8 in 012 A 1 1 4 in x 1 2...

Page 12: ...x 3 8 in 009 D 1 4 in x 3 8 in 012 B 1 1 4 in x 1 2 in 018 A 1 4 in x 1 2 in 4 009 D 1 4 in x 3 8 in 012 A 1 4 in x 1 2 in 012 B 1 1 4 in x 1 2 in 012 C 1 1 4 in x 1 2 in Table 4 Match Ups Outdoor Mod...

Page 13: ...018 B 1 4 in x 1 2 in 018 C 1 1 4 in x 1 2 in 3 018 B 1 4 in x 1 2 in 018 C 1 1 4 in x 1 2 in 024 A 2 3 3 8 in x 5 8 in 4 009 A 1 1 4 in x 3 8 in 009 B 1 1 4 in x 3 8 in 009 C 1 4 in x 3 8 in 009 D 1...

Page 14: ...atch Ups Outdoor Model No of Zones Indoor Unit Capacity Unit No Line Set Required Liquid x Gas MPA048S4M MPB048S4M Indoor Unit A 1 4 liq 1 2 gas Indoor Unit B 1 4 liq 1 2 gas Indoor Unit C 1 4 liq 3 8...

Page 15: ...8 in 3 009 A 1 1 4 in x 3 8 in 009 B 1 1 4 in x 3 8 in 009 C 1 4 in x 3 8 in 3 009 B 1 1 4 in x 3 8 in 009 C 1 4 in x 3 8 in 012 A 1 4 in x 1 2 in Table 4 Match Ups Outdoor Model No of Zones Indoor U...

Page 16: ...the following procedure to test for system leaks 1 Connect the manifold gauge set and dry nitrogen gas cylinder to the liquid and gas service ports 2 Open valve on nitrogen cylinder 3 Pressurize the...

Page 17: ...lies before opening access panel Unit may have multiple power sources CAUTION All terminal connections must be made as illustrated in the following diagrams Improperly connected wiring could damage un...

Page 18: ...230V Indoor Unit B From Power Supply Outdoor Unit Indoor Unit A Indoor Unit B Figure 21 Connection Diagram Systems 30k and Below To Indoor Unit C L2 1 A 3 A 2 A 208 230V Outdoor Unit Terminal Block Fr...

Page 19: ...P SENSOR Figure 23 MPA018S4M P Outdoor Unit Wiring Diagram 6 6 6 YELLOW RED L PRO LOW PRESSURE SWITCH H PRO HIGH PRESSURE SWITCH 4 BLACK BLUE BROWN BLACK RED L2 BROWN BROWN BLUE BLUE BLACK BLACK 1 A 3...

Page 20: ...SWITCH T3 T4 CRANKCASE HEATER DIODE MODULE SV L PFC INDUCTOR T5 MAIN BOARD OUTDOOR DC FAN 2 L 1 L XT1 T2B A B C D E CN13 E D B A INDOOR COIL OUTLET TEMP SENSOR C ELECTRONIC EXPANSION VALVE E CN30 CN2...

Page 21: ...1 A 3 A L2 2 A L1 BLACK BLUE BROWN BLACK BLUE BROWN BLACK RED 1 B 2 B 3 B COMPRE SSOR DI SCHARG E TEMPER ATURE SENSOR Figure 27 MPB018S4M P Outdoor Unit Wiring Diagram HEAT1 SV HEAT2 WHITE WHITE 6 BLA...

Page 22: ...EXV EXV HE AT_1 CR ANKCAS E HE ATE R Figure 29 MPB036S4M P Outdoor Unit Wiring Diagram DR IVER B OARD CODE PAR T NAME COMPR E S S OR D HE AT_1 CT1 AC CURRENT DETECTOR 4 WAY VALVE COMP E XV E LE CTR IC...

Page 23: ...ESSOR DISCHARGE TEMP SENSOR INDUCTOR 2R0509A INDUCTOR 1R25027 Figure 31 MLA018S4M P Outdoor Unit Wiring Diagram HE AT _1 HE AT _2 CRANKCASE HEATER HEAT_1 HEAT_2 COMPRESSOR DISCHARGE TEMP SENSOR OUTDOO...

Page 24: ...unit terminal strip The voltage must be within the range listed on the unit s nameplate If not do not start the equipment until you have consulted with the power company and the voltage condition has...

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