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40MHAA Ductless Split Unit System
Sizes 09, 12, 18, 24, 30 and 36
Fig. 1 — Sizes 09K - 36K
NOTE: Read the entire instruction manual before starting the
installation.
Images are for illustration purposes only. Actual models
may differ slightly.
Installation Instructions
Specifications subject to change without notice.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS........................................................2
ACCESSORIES................................................................................3
PARTS..............................................................................................4
SYSTEM REQUIREMENTS...........................................................6
WIRING ...........................................................................................6
DIMENSIONS..................................................................................7
CLEARANCES ................................................................................8
PRIOR TO INSTALLATION ..........................................................9
Step 1 - Check Equipment ................................................................9
Step 2 - Select the Installation Location ...........................................9
Step 3 - Attach the Mounting Plate to the Wall................................10
Step 4 - Drill Wall Holes for Connective Piping..............................10
Step 5 - Prepare Refrigerant Piping ..................................................11
Step 6 - Connect the Drain Hose ......................................................12
Step 7 - Connect the Signal and Power Cables.................................13
Step 8 - Wrap Piping and Cables......................................................14
Step 9 - Mount the Indoor Unit.........................................................14
ELECTRICAL DATA......................................................................15
CONNECTION DIAGRAMS ..........................................................15
WIRELESS REMOTE CONTROL HOLDER INSTALLATION ..17
WIRED WALL-MOUNT REMOTE CONTROL INSTALLATION
(OPTIONAL)....................................................................................18
START-UP .......................................................................................18
TROUBLESHOOTING ...................................................................19
DUCTLESS START-UP CHECKLIST - Single Zone ....................21
PAGE
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Summary of Contents for Carrier 40MHAA
- Page 1 40MHAA Ductless Split Unit System Sizes 09, 12, 18, 24, 30 and 36 Installation Instructions TABLE OF CONTENTS PAGE SAFETY CONSIDERATIONS............2 ACCESSORIES................3 PARTS....................4 SYSTEM REQUIREMENTS............6 WIRING ...................6 DIMENSIONS..................7 CLEARANCES ................8 PRIOR TO INSTALLATION ............9 Step 1 - Check Equipment ..............9 Step 2 - Select the Installation Location ...........9...
- Page 2 40MHHA: Installation Instructions SAFETY CONSIDERATIONS WARNING Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury or property damage. Consult a qualified installer, ELECTRICAL SHOCK HAZARD service agency, or your distributor or branch for information or assistance. Failure to follow this warning could result in personal injury or The qualified installer or agency must use factory-authorized kits or death.
- Page 3 40MHHA: Installation Instructions ACCESSORIES The system is shipped with the following accessories (see Table 1). Use all of the installation parts and accessories to install the system. Improper installation may result in water leakage, electrical shock and fire, or cause the equipment to fail. Keep the installation manual in a safe place and do not discard any other accessories until the installation work has been completed.
- Page 4 40MHHA: Installation Instructions PARTS Boost Fig. 2 — Parts NOTE: Illustrations in this manual are for reference only. The actual shape of the indoor unit and parts may differ slightly. 1. Wall Mounting Plate NOTES: 2. Front Panel - If the outdoor unit is higher than the indoor unit, prevent rain from 3.
- Page 5 40MHHA: Installation Instructions PARTS (CONT) NOTE: The installation must be performed in accordance with the requirement of local and national standards. The installation may differ slightly in some areas. Air Filter (pull up to remove) Front Panel Remote Control Boost Louver Remote Control Holder ECO intelligent eye...
- Page 6 40MHHA: Installation Instructions SYSTEM REQUIREMENTS Allow sufficient space for airflow and unit service. Fig. 5 — on page 8 for the minimum required distances between the unit and walls or ceilings. Table 3 — Indoor Unit Pipe Sizes UNIT SIZES (115V) (115V) (208/230V)
- Page 7 40MHHA: Installation Instructions DIMENSIONS Fig. 4 — Dimensions Table 4 — Dimensions High Wall Unit Size (Voltage) (115V) (115V) (208/230V) (208/230V) (208/230V) (208/230V) (208/230V) (208/230V) Height (H) 11.5(292) 11.61(295) 11.5(292) 11.61(295) 12.64(321) 13.27(337) 14.25(362) 14.25(362) (mm) Width (W) 28.7(729) 31.57(802) 28.7(729) 31.57(802) 38.23(971)
- Page 8 40MHHA: Installation Instructions CLEARANCES CEILING 5.9in (15cm)min. 4.75 in 4.75in (12 cm) (12 cm) min. min. 6 ft (1.8m) FLOOR Fig. 5 — Unit Clearances NOTE: The top clearance recommended for proper return airflow is 5.9in (15cm). Reduction of this clearance may decrease unit performance.
- Page 9 40MHHA: Installation Instructions PRIOR TO INSTALLATION Step 2 - Select the Installation Location Before installing the indoor unit, ensure the compatibility with the outdoor unit using the product data as a reference. It is also necessary to confirm the proper application of the equipment and to perform a heat Before installing the indoor unit, choose an appropriate location.
- Page 10 40MHHA: Installation Instructions Step 3 - Attach the Mounting Plate to the Step 4 - Drill Wall Holes for Connective Piping Wall 1. Determine the location of the wall hole based on the position of the mounting plate. Refer to the Mounting Plate Dimensions. Use the following steps to attach the mounting plate to the wall.
- Page 11 40MHHA: Installation Instructions Step 5 - Prepare Refrigerant Piping 570.7(22.5) Indoor unit outline The refrigerant piping is inside an insulating sleeve attached to the back of the unit. The installer must prepare the piping before passing it through the hole in the wall. BUBBLE LEVEL 1.
- Page 12 40MHHA: Installation Instructions Step 6 - Connect the Drain Hose CAUTION By default, the drain hose is attached to the left-hand side of the unit (when you are facing the back of the unit). However, it can also be All wiring must comply with local and national electrical codes, attached to the right-hand side.
- Page 13 40MHHA: Installation Instructions Step 7 - Connect the Signal and Power 3. Unscrew the cable clamp, below the terminal block, and place it to the side. Cables 4. Facing the back of the unit, remove the plastic panel on the bottom left- hand side.
- Page 14 40MHHA: Installation Instructions Step 8 - Wrap Piping and Cables Step 9 - Mount the Indoor Unit Before passing the piping, drain hose, and the signal cable through the If new connected piping to the outdoor unit has been installed, complete wall hole, bundle them together to save space, protect them, and insulate the following steps: them (not applicable in North America).
- Page 15 40MHHA: Installation Instructions ELECTRICAL DATA Table 5 — Electrical Data HIGH WALL INDOOR UNITS (115 V) (115 V) (208/230 V) (208/230 V) (208/230 V) (208/230 V) (208/230V) (208/230V) RUNNING CURRENT 0.45 0.45 0.69 0.44 0.21 0.21 POWER CONSUMPTION POWER FACTOR 79.7 81.3 66.1...
- Page 16 40MHHA: Installation Instructions INSTALL ALL POWER, INTERCONNECTING Table 6 — Flare Nut Spacing WIRING, AND PIPING TO THE INDOOR UNIT A (MM) OUTER DIAM. (MM) MAX. MIN. 1. Run interconnecting piping and wiring from the outdoor unit to the Ø 1/4” (6.35) 0.05 (1.3) 0.03 (0.7) indoor unit.
- Page 17 40MHHA: Installation Instructions FINAL TUBING CHECK WIRELESS REMOTE CONTROL HOLDER INSTALLATION IMPORTANT: Ensure the certain factory tubing on the indoor unit has not shifted during shipment. Ensure the tubes are not rubbing against each other or any sheet metal. Pay close attention to feeder tubes and ensure the wire ties on the feeder tubes are secure and tight.
- Page 18 40MHHA: Installation Instructions WIRED WALL-MOUNT REMOTE START-UP CONTROL INSTALLATION Test Operation (OPTIONAL) Perform a test operation after completing a gas leak and electrical safety The wired remote controller comes with the following items: check (see Fig. 31). • A set of installation instructions and owner's manuals •...
- Page 19 40MHHA: Installation Instructions TROUBLESHOOTING For ease of service, the systems are equipped with diagnostic code display LEDs on both the indoor and outdoor units. The indoor diagnostic display is a combination of flashing LEDs on the display panel or the front of the unit. Some indoor units display error codes specifying failure modes in the outdoor units.
- Page 20 40MHHA: Installation Instructions INDOOR UNIT FUNCTIONAL CODES Table 9 — Indoor Unit Functional Codes DISPLAY DESCRIPTION Defrost Self clean Filter cleaning reminder Active Clean (*model dependent) Filter replacement reminder Heating in room temperature under 8°C Forced cooling AP mode of WIFI connection Remote switched off Remote or Wire controller Lock Time On...
- Page 21 40MHHA: Installation Instructions DUCTLESS START-UP CHECKLIST - Single Zone Installation Data Site Address:_______________________________________________________________________________________________________ City:________________________________________________________ State:___________ Zip Code:__________________ Installing Contractor:______________________________________________________ Contractor Contact #: ( ) _____-___________ Job Name:_______________________________________________________________ Start-up Date:_____________________________ Distributor:_______________________________________________________________ System Details UNITS MODEL NO. SERIAL NO. CONTROLLER OUTDOOR UNIT INDOOR UNIT A Are the outdoor unit and indoor unit compatible? YES:______ NO:______...
- Page 22 Outdoor Unit Error Code: Wall Controller: 24V Interface: Comments: __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ © 2022 Carrier. All rights reserved. Edition Date: 10/22 Catalog No: IM-40MHHA-01 Replaces: Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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