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8

INSTALLATION TIPS

Indoor Unit

Installation locations include:

S

  A location where no obstacles exist near the inlet and outlet

areas.

S

  A location which can bear the indoor unit’s weight is critical.

S

  Do not install the indoor units near a direct source of heat such as

direct sunlight or a heating appliance.

S

  A location which provides appropriate clearances (see Fig. 4).

S

  Do not install the indoor unit in a location with special

environmental conditions. For those applications, contact your
Ductless Systems representative.

INDOOR UNIT INSTALLATION

1. Obstructions should be removed from the indoor unit’s intake

or outlet vents so air can flow throughout the room.

2. Ensure the installation is in accordance with the schematic

diagram’s required clearances.

3. Select an install site that can withstand four times the indoor

unit’s weight and would not increase the operating noise.

4. Ensure the unit is level.

5. Select a location where condensated coagulated water can

drain easily away from the outdoor unit.

6. Ensure there is enough space for care and maintenance.

Ensure the height between the indoor unit and ground is 

3ft. (1m) or

16ft. (5m).

7. Ensure the install site can withstand a weight four times of

the unit’s. If not, reinforce the site prior to installation. Refer
to the install cardboard to determine where the location
should be reinforced.

IMPORTANT: To guarantee a good performance, the unit must be
installed by professional personnel in accordance with this manual.

IMPORTANT: Drilling holes in the ceiling must be performed by
professional personnel.

1

1

2

2

3

3

21.5in(545mm)

22.4in(570mm)

25.5in(647mm)

4

5

20.6in(523mm)

22.4in(570mm)

25.5in(647mm)

Fig. 5

 - 

Relationship of ceiling opening to unit and

suspension bolt position (Sizes 09−18)

Fig. 6

 - 

Relationship of ceiling opening to unit and

suspension bolt position (Sizes 24−48)

2.8in(70mm)

0.6in(15mm)

0.6in(15mm)

23.6in(600mm)

6

7

8

0.8in(20mm)

0.8in(20mm)

Unit: in (mm)

Fig. 7

 - 

Relationship of ceiling opening to unit and

suspension bolt position (Sizes 09−18)

1. Installation hook pitch dimensions

2. Indoor unit dimensions

3. Decoration panel dimensions

4. Refrigerant piping

5. Installation hook (X4)

6. Ceiling opening dimensions

7. Hanger bracket

8. False ceiling

Fig. 8

 - 

Relationship of ceiling opening to unit and

suspension bolt position (Sizes 24−48)

NOTE:  Adjust the position to ensure the gaps between the indoor
unit and the four sides of the false ceiling are even. The indoor unit’s
lower part should sink into the false ceiling roughly 0.9in. (24mm).

Summary of Contents for 40MBCQ

Page 1: ... actual model may differ slightly NOTE Read the entire instruction manual before starting the installation TABLE OF CONTENTS PAGE SAFETY CONSIDERATIONS 2 PARTS LIST 3 SYSTEM REQUIREMENTS 4 WIRING 4 DIMENSIONS 5 CLEARANCES 7 INSTALLATION TIPS 8 INDOOR UNIT INSTALLATION 8 ELECTRICAL DATA 14 CONNECTION DIAGRAMS 15 START UP 16 TROUBLESHOOTING 17 ...

Page 2: ...s hazards which will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE is used to highlight suggestions which will result in enhanced installation reliability or operation WARNING ELECTRICAL SHOCK HAZARD Failure ...

Page 3: ...r unit is higher than the indoor unit prevent rain from flowing into the indoor unit along the connection pipe by creating a downward arc in the connection pipe before it enters the wall to the indoor unit This ensures that rain drips from the connection pipe before entering the wall Piping and the interconnecting wiring are field supplied Fig 1 is only a sketch Different models may differ slightl...

Page 4: ...d EMF area and communication issues exist a 14 2 stranded shielded wire can be used to replace L2 and S between outdoor unit and indoor unit landing the shield onto ground in the outdoor unit only Recommended Connection Method for Power and Communication Wiring 36K through 48K Power Wiring The main power is supplied to the outdoor unit The field supplied power wiring from the outdoor unit to the i...

Page 5: ...m 25 79 655 28 15 715 25 79 655 28 15 715 25 79 655 28 15 715 35 43 900 40 75 1035 35 43 900 40 75 1035 35 43 900 40 75 1035 Depth In mm 25 79 655 28 15 715 25 79 655 28 15 715 25 79 655 28 15 715 35 43 900 40 75 1035 35 43 900 40 75 1035 35 43 900 40 75 1035 Weight Gross Lbs kg 41 88 19 9 92 4 5 41 88 19 9 92 4 5 46 3 21 9 92 4 5 54 23 24 6 17 64 8 66 14 30 17 64 8 72 53 32 9 17 64 8 Weight Net 3...

Page 6: ...ole for 75 Fresh air intake 2 16 55 3 15 80 4 install hanger Gas side Liquid side E parts box 5 31 135 3 54 90 Panel Body D D 3 62 92 D D D D D D A B C D Capacity Btu h 24K mm 160 75 205 50 inch 6 30 2 95 8 07 1 97 36K mm 160 95 245 60 inch 6 30 3 74 9 65 2 36 48K mm 160 95 287 60 inch 6 30 3 74 11 30 2 36 3 15 80 26 77 680 30 71 780 33 07 840 3 62 92 3 62 92 37 40 950 3 62 92 Fig 3 Indoor Unit Si...

Page 7: ...7 CLEARANCES Fig 4 Cassette Unit Clearance ...

Page 8: ...nsure the install site can withstand a weight four times of the unit s If not reinforce the site prior to installation Refer to the install cardboard to determine where the location should be reinforced IMPORTANT To guarantee a good performance the unit must be installed by professional personnel in accordance with this manual IMPORTANT Drilling holes in the ceiling must be performed by profession...

Page 9: ...eeding further For an installation example see Fig 10 1 2 3 4 Fig 10 Installation Clearances 1 Ceiling slab 2 Expansible hook optional 3 Installation hook optional 4 False ceiling NOTE For a non standard installation contact your dealer for details When installing optional accessories review the optional accessories list in the installation manual Depending on field conditions it may be easier to ...

Page 10: ...densation 1 Indoor drain pipe 2 Drain socket Unit mm 1 2 5 7 0 5 1 1 5m 300 11 8in 6 5 4 3 n i 7 8 0 2 2 n i 5 9 2 0 5 7 n i 3 0 n i 9 0 2 0 3 5 3 5ft Fig 16 Drain Setup Pipe 1 Ceiling slab 2 Hanger bracket 3 Adjustable range 4 Drain raising pipe 5 Drain hose 6 Metal clamp Connect the drain hose to the drain raising pipes and insulate them Connect the drain hose to the drain outlet on the indoor u...

Page 11: ...m 2 Water receiver ElectricalWiring 1 Remove the indoor unit control box lid 2 Follow the Wiring Diagram label attached to the indoor unit s control box lid to wire the outdoor unit indoor unit and the wired remote controller 3 Securely fix the wires with a field supplied clamp 4 Attach the outdoor unit cover When the electric wiring work is complete check the drainage flow during COOL running 1 C...

Page 12: ...on panel to the unit with the supplied screws see Fig 24 3 After installing the decoration panel ensure there is no space between the unit body and the decoration panel Otherwise air may leak through the gap and cause dewdrops see Fig 23 Fig 23 Eliminate Space 4 Mount the intake grille Ensure the buckles at the back of the grille are properly seated in the panel s groove 1 Decoration panel 2 Screw...

Page 13: ...N40 Connector Used for Wired Remote Control with a 4 Pin Molex plug Wired Remote Controller Available as Accessory 5 Pin Molex plug to be connected to Wired Controller s cable Grille Display 10 pin Molex plug to be connected to Control Board Grille Louver Motor Power 5 Pin Molex plug to be connected to Control Board Fig 29 Panel Cassette Connections ...

Page 14: ...ht of the indoor unit needs to be adjusted you can do so through the openings at the panel s four corners Make sure that the internal wiring and drainpipe are not affected by this adjustment ELECTRICAL DATA Table 5 Electrical Data UNIT SIZE OPER VOLTAGE INDOOR FAN MAX FUSE CB AMP OPER VOLTAGE MAX MIN V PH HZ FLA HP W MAX FUSE CB AMP 9 253 187 208 230 1 60 0 146 0 061 46 Refer to outdoor unit insta...

Page 15: ...sulation at the flare connection then fasten the piping and wiring to the wall as required Completely seal the hole in the wall 5 Piping a Cut the pipe with a pipe cutter at 90 degrees see Fig 38 b Remove the service connection if provided with the unit Oblique DŽ 90 Roughness Burr Fig 38 Pipe Cutting c Remove all the burrs from the cut cross section of the pipe avoiding any burrs inside the tubes ...

Page 16: ...t metal Pay close attention to the feeder tubes making sure the wire ties on the feeder tubes are secure and tight EVACUATE EVACUATE CHECK FOR TIGHT DRY SYSTEM IF IT HOLDS DEEP VACUUM BREAK VACUUM WITH DRY NITROGEN WAIT RELEASE CHARGE INTO SYSTEM EVACUATE BREAK VACUUM WITH DRY NITROGEN WAIT Fig 42 Triple Evacuation Method START UP Test Operation Perform a test operation after completing a gas leak...

Page 17: ...ture sensor T2 open circuit or short circuit 7 times X EC Refrigerant leakage detection 8 times X EE Water level alarm malfunction 1 time O F0 Current overload protection 2 times O F1 Open circuit or short circuit of outdoor ambient temperature sensor T4 3 times O F2 Open circuit or short circuit of condenser coil temperature sensor T3 4 times O F3 Open circuit or short circuit of Compressor disch...

Page 18: ...D 7310 W Morris St D Indianapolis IN 46231 Edition Date 10 18 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No IM 40MBCQ 03 Replaces IM 40MBCQ 02 ...

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