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INSTALLATION

INSTRUCTIONS

2017 Lennox Industries Inc.

Dallas, Texas, USA

WARNING

Improper installation, adjustment, alteration, ser vice or

maintenance can cause property damage, personal

injury or loss of life.
Installation and service must be performed by a li censed

professional HVAC installer (or equivalent) or a service

agency.

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.

WARNING

This product contains a chemical known to the State

of California to cause cancer, birth defects, or other

reproductive harm.

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.

General

These instructions are intended as a general guide and

do not supersede local or national codes in any way.

Authorities having jurisdiction should be consulted before

installation.
The MWMA and MWMB wall-mounted indoor units are

matched with an outdoor heat pump unit to create a mini-

split system that uses HFC-410A refrigerant.

MLA/MPA/MPB and

MWMA/MWMB Series

SINGLE-ZONE MINI-SPLIT SYSTEMS

(115V and 208/230V) --

Wall-Mounted Indoor Unit

507545-06

4/2017

Supersedes 10/2016

Table of Contents

General ...........................................................................1

Included Parts.................................................................2

Model Number Identification

...........................................3

Indoor / Outdoor Unit Match-Ups....................................4

Typical System Components ..........................................5

System Dimensions ........................................................6

Outdoor Units ..............................................................6

Indoor Units .................................................................7

System Clearances ........................................................8

Outdoor Unit ................................................................8

Indoor Unit ...................................................................8

Torque Requirements for Caps and Fasteners...............9

Indoor Unit Installation ....................................................9

Unit Placement Considerations ...................................9

Determining Wall Mounting Plate Location ..................9

Installation of Wall Mounting Plate...............................9

Installation of Wall Sleeve..........................................10

Installation of Indoor Unit on Wall Mounting Plate .....10

Indoor Unit Condensate Piping Connections .............12

Outdoor Unit Installation ...............................................12

Placement Considerations .........................................12

Direct Sunlight, Rain, Snow and Ice Protection .........13

Prevailing Winds ........................................................14

Buried Refrigerant Pipe Protection ............................14

Outdoor Unit Condensate Piping ...............................14

Securing the Outdoor Unit .........................................15

Refrigerant Piping Connections ....................................15

Leak Test and Evacuation ............................................18

Leak Test ...................................................................18

Triple Evacuation Procedure......................................18

Wiring Connections ......................................................18

Outdoor Unit .............................................................18

Indoor Unit .................................................................18

Unit Start-Up .................................................................26

Adding Refrigerant for Longer Line Set ........................26

Troubleshooting ............................................................26

Test Run .......................................................................26

Pre-Checks ................................................................26

Procedure ..................................................................26

Double-Check Pipe Connections ...............................27

If Ambient Temperature is below 63°F (17°C) ...........27

Dry Mode Operation (Dehumidification)

.......................27

Procedure ..................................................................27

Sequence of Operation ..............................................27

THIS MANUAL MUST BE LEFT WITH THE OWNER

FOR FUTURE REFERENCE

Содержание MWMA009S4-*L

Страница 1: ...gerant MLA MPA MPB and MWMA MWMB Series SINGLE ZONE MINI SPLIT SYSTEMS 115V and 208 230V Wall Mounted Indoor Unit 507545 06 4 2017 Supersedes 10 2016 Table of Contents General 1 Included Parts 2 Model Number Identification 3 Indoor Outdoor Unit Match Ups 4 Typical System Components 5 System Dimensions 6 Outdoor Units 6 Indoor Units 7 System Clearances 8 Outdoor Unit 8 Indoor Unit 8 Torque Requirem...

Страница 2: ...ity Parts Figure Quantity M0STAT60Q 1 Wireless controller 1 Installation and owner s manual 1 ea Wireless control holder with 2 mounting screws 1 Mounting plate 1 Batteries AAA 2 Mounting plate securing screws 5 Plastic screw anchors 5 1 Assembled Outdoor Unit and the following items Parts Figure Quantity Parts Figure Quantity Drain connector 1 Seal ring 1 ...

Страница 3: ...ns 030 2 5 tons Refrigerant Type 4 HFC 410A Minor Design Sequence 1 1st Revision 2 2nd Revision M P A 009 S 4 S 1 P Series Type M Mini Split OUTDOOR SINGLE ZONE HEAT PUMP UNITS Cooling Efficiency S Standard Efficiency 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 Refrigerant Type 4 HFC 410A Refrigerant...

Страница 4: ...S P MWMA012S4 P 208 230V MPA018S4S P MWMA018S4 P 208 230V MPA024S4S P MWMA024S4 P 208 230V MPA030S4S P MWMA030S4 P 208 230V MPB009S4S P MWMA009S4 P 208 230V MPB012S4S P MWMA012S4 P 208 230V MPB018S4S P MWMA018S4 P 208 230V MPB024S4S P MWMA024S4 P 208 230V MPB030S4S P MWMB030S4 P 208 230V MLA009S4S P MWMA009S4 2P 208 230V MLA012S4S P MWMA012S4 2P 208 230V MLA018S4S P MWMA018S4 2P 208 230V MLA024S4S...

Страница 5: ...ld provided TAPE IMPORTANT The refrigerant metering device for this system is located in the outdoor unit This makes it necessary to insulate the refrigerant lines individually to prevent sweating 1 2 3 L1 L2 UV rated tape field provided Line set wrapped in foam insulation Access cover for power and control wiring connections Condensate drain line field provided Mounting Plate Liquid and vapor shu...

Страница 6: ... 1032 641 810 384 406 MPB009S4S L MPB012S4S L MPB012S4S P inches 34 1 4 20 1 4 21 7 8 13 1 8 13 3 8 mm 870 514 556 333 340 MPB009S4S P inches 33 1 8 19 1 8 21 7 8 11 7 8 11 3 4 mm 842 486 556 302 298 MPB018S4S P inches 36 21 1 4 27 5 8 14 1 4 13 3 4 mm 914 540 702 362 349 MPB024S4S P MPB030S4S P inches 37 1 4 26 1 2 31 7 8 16 3 8 15 7 8 mm 1032 673 810 416 403 MLA009S4S P MLA012S4S P inches 34 1 4...

Страница 7: ... in mm in mm in mm in mm MWMA009S4S L 32 7 8 835 11 279 29 1 4 743 7 7 8 200 MWMB009S4S L MWMA012S4S L MWMB012S4S L MWMA009S4S P MWMA012S4S P MWMA018S4S P 39 991 12 3 8 314 34 3 4 883 8 5 8 210 MWMA024S4S P 46 3 4 1187 13 1 2 343 42 1 2 1080 10 1 4 260 MWMA030S4S P MWMB030S4S P ...

Страница 8: ...ith no obstructions on the other three sides Figure 2 Outdoor Unit Clearances Inches mm Indoor Unit FRONT VIEW Wall Vertical Clearance Clearance to Floor 72 inches 1829 mm Minimum 96 inches 2438 mm Recommended 5 127 mm Minimum 6 152 mm Minimum Clearance Ceiling Wall Floor 5 127 mm Minimum 59 1499 mm Minimum SIDE VIEW Any Object Figure 3 Indoor Unit Clearances Inches mm ...

Страница 9: ...hortest run to a suitable drain per local codes Allow sufficient space around unit for proper operation and maintenance Install unit a minimum of 3 feet 1m away from any antenna power cord line radio telephone security system or intercom Electrical interference and radio frequencies from any of these sources may affect op eration Be sure to instruct customers how to properly operate the unit espec...

Страница 10: ...LE TOOL TO CUT PVC FOR WALL SLEEVE AT SLIGHT ANGLE AS SHOWN Figure 6 PVC Wall Sleeve Installation NOTE When passing bundled services through an exterior brick or concrete wall protect the copper pipes and wiring from the effects of these construction materials by using a sleeve made of suitable material The integrity of copper pipe and wiring can deteriorate when exposed to these construction mate...

Страница 11: ...ameter Right rear side refrigerant pipe inlet 2 1 2 64 diameter 1 3 4 45 39 991 12 3 8 314 Indoor unit outline 7 8 22 5 1 4 133 10 1 4 260 10 7 8 276 10 1 8 257 46 3 4 1187 13 1 2 343 Left rear side refrigerant pipe inlet 2 1 2 64 diameter Right rear side refrigerant pipe inlet 2 1 2 64 diameter Indoor unit outline 7 8 22 1 3 4 44 MWMA009S4 MWMB009S4 MWMA012S4 MWMB012S4 MWMA018SA MWMA024S4 MWMA030...

Страница 12: ...inage Figure 9 Condensate Line Outdoor Unit Installation CAUTION In order to avoid injury take proper precaution when lifting heavy objects Placement Considerations Consider the following when positioning the unit In coastal areas or other places with salty atmosphere of sulfate gas corrosion may shorten the life of the unit In coastal areas the coil should be cleaned with potable water several ti...

Страница 13: ...utdoor Unit on Pedestal and Protective Canopy The unit base should be elevated above the depth of average snows as illustrated in Figure 12 Outdoor Unit on Brackets above Snow Line In heavy snow areas do not place the unit where drift ing will occur as illustrated in Figure 13 Outdoor Unit Air Flow Obstructed by Snow Carefully consider how to manage defrost water dis posal to prevent ice from bloc...

Страница 14: ... Air Wind Barrier Prevailing Winter Winds From Air Discharge Side 79 2007mm Min Distance Figure 15 Wind Barrier 12 in 305 mm 24 in 610 mm 24 in 610 mm 12 in 305 mm NOTE Minimum clearances shown Figure 16 Dog House Style Shelter 12 in 305 mm 24 in 610 mm 12 in 305 mm 24 in 610 mm NOTE Minimum clearances shown Figure 17 Unit Installed in Alcove Buried Refrigerant Pipe Protection All refrigerant line...

Страница 15: ...densate disposal when placing units above one another Air Outlet Air Inlet 6 in 152 mm Figure 21 Securing Outdoor Unit to Brackets Refrigerant Piping Connections Field piping consists of two copper lines connecting the outdoor unit to the indoor unit Table 2 Refrigerant Piping and Indoor Unit Connection Sizes lists the connection sizes The connections are made using the provided brass flare nuts a...

Страница 16: ... flared connections Table 2 Refrigerant Piping and Indoor Unit Connection Sizes Size Btuh Liquid Line in Suction Line in 9000 1 4 3 8 12000 1 4 1 2 18000 1 4 1 2 24000 3 8 5 8 30000 3 8 5 8 A B CANT ON THE OUTSIDE OF THE FLARE MALE FLARE CONNECTION Figure 22 Making Connections Male to Female Connection IMPORTANT Always use two wrenches when tightening flare nuts to avoid twisting refrigerant pipin...

Страница 17: ... not allow for excess length of line sets to be left rolled up as part of the required distance or in general This will also cause additional performance issues IMPORTANT Each system size has a line set length and vertical elevation parameters System Size KBtu Line Set Diameters in Maximum Elevation Outdoor Unit BELOW Indoor Unit Feet Meter Maximum Elevation Outdoor Unit ABOVE Indoor Unit Feet Met...

Страница 18: ...n by using the condensate wiring or through the use of an external relay or contactor Leak Test and Evacuation Air and moisture remaining in the refrigerant system will have undesirable effects as indicated below Pressure in the system rises Operating current rises Cooling or heating efficiency drops Moisture in the refrigerant circuit may freeze Water may lead to corrosion of parts in the refrige...

Страница 19: ...e ground wire for the unit must not be connected to a gas or water pipe a lightning conductor or a telephone ground wire Do not connect power wires to the outdoor unit until all other wiring and piping connections have been completed Do not install the unit near a lighting appliance that includes a ballast The ballast may affect remote control operation IMPORTANT All diagrams Figure 25 through Fig...

Страница 20: ...ToL VM Comm Bu s YELLOW BROWN RED 5 5 Programmable Wired Controller OPTIONAL 4 Note The programmable wired controller and LVM use the same port CN403 CN1 CN101 CN2 CN201 NOTE COMPONENT IN DASH LINE IS OPTIONAL OR FIELD WIRING Figure 25 MWMA and MWMB Unit Wiring Diagram U V W VALVE BLUE U V W 4 CN28 CN26 CN10 N B CN15 L2 N A Y G RED BLUE BLACK 5 CN34 CN32 CN33 CN31 CN6 CN7 CN5 CN4 BROWN BLUE YELLOW...

Страница 21: ...ATER OUTDOOR TEMP SENSOR Figure 27 208 230V MPA009S4S P and MPA012S4S P Outdoor Unit Wiring Diagram 1 2 3 OUT DOOR FAN RED YELLOW BLACK Y G U V W RY1 CN6 CN2 CN7 CN8 CN3 CN4 CN10 CN1 COMPRESSOR Y G RED BLUE BLACK OUTDOOR COIL TEMP OUTDOORTEMP SENSOR WHITE BLACK COMPRESSOR TEMP SENSOR 6 OUTDOOR MAIN PCB BLUE BLACK RED CN13 CN12 L OUT CN18 4 WAY VALVE CN414 BLUE BLUE U V W Y G CN6 1 Y G RED BLUE 3 C...

Страница 22: ...UTDOOR TEMP SENSOR CRANKCASE HEATER H PRO SV L PFC INDUCTOR Y G COMPRESSOR DISCHARGE TEMP RED BLACK V U CN19 CN51 CN55 W BLACK RED 7 7 YELLOW BLUE P 1 FM1 OUTDOOR DC FAN CN53 CN3 CN4 CN10 CN40 CN22 CN44 CN8 CN9 CN7 CN2 CN1 CN5 CN54 CN52 3 CN33 CN6 SV BLUE BLUE HEAT2 HEAT1 CN12 CN11 3 3 3 BLACK RED BLUE BLUE BLUE YELLOW RED BLACK RED BLACK JXI L2 TO INDOOR UNIT POWER SUPPLY Y G 2 3 L1 1 RED RED BLA...

Страница 23: ...LACK BLACK 2 2 BLACK W V RED BLUE U OUTDOOR MAIN PCB RED BLACK WHTIE Figure 31 115V MPB009S4S L and MPB012S4S L Outdoor Unit Wiring Diagram 4 WAY VALVE OUTDOOR FAN CN 7 3 6 CN 31 PAN HEATER CN 15 CN 60 CRANKCASE HEATER CN 17 BLUE BROWN BLACK 3 2 L2 RED BLUE Y G 1 Y G CN 21 Y G CN 1A Y G Y G COMPRESSOR Y G CN 50 3 U V W BLUE RED BLACK EXV OUTDOOR MAIN PCB OUTDOOR TE MP S E NS OR COMPR E S S OR DIS ...

Страница 24: ... Figure 33 208 230V MPB018S4S P and MPB024S4S P Outdoor Unit Wiring Diagram EXV 4 WAY VALVE TS COMPONENT IN DASH LINE IS OPTIONAL OR FIELD WIRING Figure 34 208 230V MPB030S4S P Outdoor Unit Wiring Diagram ...

Страница 25: ...UCTOR TS DISCHARGE TEMPERATURE SENSOR RED BLACK V U CN19 CN51 CN55 W EEV BLACK DRIVER BOARD RED YELLOW BLUE P 1 FM1 OUTDOOR DC FAN FAN MOTOR CAPACITOR CN53 CN20 CN3 CN4 CN10 CN40 CN22 CN44 CN8 CN9 CN7 CN2 CN1 CN5 CN54 CN52 CN33 5 6 CN6 SV 4 WAY1 BLUE BLUE HEAT2 HEAT1 BLACK RED BLUE BLUE BLUE YELLOW RED BLACK RED BLACK L2 TOINDOORUNIT POWERSUPPLY Y G 2 L1 1 RED RED BLACK YELLOW S BLACK YELLOW Crank...

Страница 26: ...rigerant to add 09 25 7 5 0 161 oz ft 15g m 12 25 7 5 0 161 oz ft 15g m 18 25 7 5 0 161 oz ft 15g m 24 25 7 5 0 322 oz ft 30g m 36 25 7 5 0 322 oz ft 30g m 48 25 7 5 0 322 oz ft 30g m Troubleshooting Table 7 Troubleshooting Codes Code Description E0 Indoor unit EEPROM error E1 Communication error between indoor unit and outdoor unit E3 Indoor fan speed error E4 Indoor return air temperature sensor...

Страница 27: ...til it clicks in place 2 The MANUAL CONTROL button is located on the right hand side of the unit Press it 2 times to select the COOL function 3 Perform Test Run as normal Manual control button Figure 37 Manual Control Button Dry Mode Operation Dehumidification Procedure 1 Using the provided wireless remote control press the MODE button and select DRY mode 2 Press the UP DOWN button to select the d...

Страница 28: ...28 ...

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