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45MBDAQ
Ducted Ductless System
Sizes 06K-60K
Fig. 1 -Sizes 06K-18K (Low Static)
Fig. 2 -Sizes 12K-58K (High Static)
NOTES: Read the entire instruction manual before starting the
installation. Images are for illustration purposes only. Actual
models may differ slightly.
Installation Instructions
TABLE OF CONTENTS
SAFETY CONSIDERATIONS ....................................................... 2
ACCESSORIES ............................................................................... 8
DIMENSIONS AND WEIGHTS..................................................... 10
PRODUCT OVERVIEW ................................................................. 11
INSTALLATION SUMMARY ....................................................... 12
A. INSTALL THE INDOOR UNIT ................................................ 13
DIMENSIONS ................................................................................. 14
B. DRAIN CONNECT..................................................................... 22
C. CONDENSATE DRAIN INSTALLATION............................... 25
D. CONNECT THE REFRIGERANT PIPES ................................. 29
WIRELESS REMOTE CONTROLLER INSTALLATION ........... 31
WIRED REMOTE CONTROLLER INSTALLATION.................. 32
STALLATION ................................................................................. 32
E. WIRE CONNECTIONS .............................................................. 43
CONNECTION DIAGRAMS.......................................................... 44
WIRING DIAGRAMS..................................................................... 46
CAPACITY SETTING .................................................................... 49
DIP SWITCH SETTINGS ...............................................................50
INDOOR UNIT WIRING ................................................................ 52
TEST RUN ....................................................................................... 53
TROUBLESHOOTING ................................................................... 54
DUCTLESS START - UP CHECKLIST - Single Zone.................. 55
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Summary of Contents for Carrier 45MBDAQ
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Page 1: Table Of Contents
45MBDAQ Ducted Ductless System Sizes 06K-60K Installation Instructions TABLE OF CONTENTS SAFETY CONSIDERATIONS ............2 ACCESSORIES ................8 DIMENSIONS AND WEIGHTS............. 10 PRODUCT OVERVIEW ..............11 INSTALLATION SUMMARY ............12 A. INSTALL THE INDOOR UNIT ..........13 DIMENSIONS ................. 14 B. -
Page 2: Safety Considerations
45MBDAQ: Installation Instructions SAFETY CONSIDERATIONS CAUTION Installing, starting up, and servicing air-conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location (roofs, elevated structures, etc.). EQUIPMENT DAMAGE HAZARD Only trained, qualified installers and service mechanics should install, Failure to follow this caution may result in equipment damage or start- up, and service this equipment. - Page 3 45MBDAQ: Installation Instructions Table 1 — Symbols displayed on the indoor unit or outdoor unit WARNING This symbol shows that this appliance used a flammable refrigerant. If Turn off the air conditioner and disconnect the power before the refrigerant is leaked performing any installation or repairing.
- Page 4 45MBDAQ: Installation Instructions Table 2 — A (min) Ho, release height ft (m) Mc or Mrel (lbs(kgs) ≤ 7.2 (2.2) 7.5 (2.3) 7.9 (2.4) 8.5 (2.6) 9.2 (2.8) 9.8 (3.0) ≤ 3.91 (1.776) 12 (1.10) 4.0 (1.8) 60 (5.53) 57 (5.29) 55 (5.07)
- Page 5 45MBDAQ: Installation Instructions Room Size Restriction The appliances are connected via an air duct system to one or more rooms. The bottom of the air inlet of the air duct should be at a height > 7.3ft/2.2m from the floor. In UL/CSA 60335-2-40 the refrigerant belongs to mildly flammable refrigerants which will limit the room area of the system service.
- Page 6 45MBDAQ: Installation Instructions 1. Installation (where refrigerant pipes are allowed) The required nitrogen test pressure is 500 PSI. Any person who is involved with working on or breaking into a The test pressure after removal of pressure source shall be...
- Page 7 45MBDAQ: Installation Instructions NOTE: Examples of leak detection fluids are pressure is achieved, then venting to atmosphere, and finally pulling down to a vacuum (requirement). This process shall be repeated - bubble method, until no refrigerant is within the system (requirement). When the - fluorescent method agents.
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Page 8: Accessories
45MBDAQ: Installation Instructions ACCESSORIES The system is shipped with the following accessories. 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 has been completed. -
Page 9: Gas Side
45MBDAQ: Installation Instructions Fig. 3 —Display Panel MANUAL button: This button selects the mode in the following order: AUTO, FORCED COOL, OFF. FORCED COOL mode: In FORCED COOL mode, the Operation light flashes. The system will then turn to AUTO after it has cooled with a high wind speed for 30 minutes. -
Page 10: Dimensions And Weights
45MBDAQ: Installation Instructions DIMENSIONS AND WEIGHTS Table 8 — Dimensions and Weights (Heat Pump Models) Low Static SYSTEM SIZE 09K/12K (208/230 V) (208/230 V) (208/230 V) Height (H) in (mm) 7.87(200) 7.87(200) 8.27(210) Width (W) in (mm) 27.56(700) 27.56(700) 34.65(880) -
Page 11: Product Overview
45MBDAQ: Installation Instructions PRODUCT OVERVIEW Illustrations in this manual are for explanatory purposes. The actual shape of your indoor unit may be slightly different. The actual shape shall prevail. The installation must be performed in accordance with the requirement of local and national standards. The installation may be slightly different in different areas. -
Page 12: Installation Summary
45MBDAQ: Installation Instructions INSTALLATION SUMMARY Install the indoor unit Install the drainpipe Install the outdoor unit L(L1) N(L2) Evacuate the Connect the wires Connect the refrigerant refrigeration system pipes Perform a test run Fig. 5 —Installation Summary NOTE: Refer to the outdoor installation manual for steps pertaining to the outdoor unit and system checks. -
Page 13: Install The Indoor Unit
45MBDAQ: Installation Instructions A. INSTALL THE INDOOR UNIT Step 1: Select Installation Location NOTE: Before installing the indoor unit, you must choose an appropriate location. The following are standards that will help you choose an appropriate location for the unit. -
Page 14: Dimensions
45MBDAQ: Installation Instructions DIMENSIONS Low Static Table 10 — Low Static MODEL (KBTU/H) UNIT 09/12 inch 27.56 7.87 18.50 19.92 17.72 5.39 21.14 1.18 5.98 23.58 7.32 1.97 29.17 14.17 3.31 5.51 3.31 3.31 inch 34.65 8.27 24.96 26.54 23.62 5.51... - Page 15 45MBDAQ: Installation Instructions Fig. 8 —Sizes 06K, 09K/12K with external condensate pump (optional) Low Static Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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Page 16: High Static
45MBDAQ: Installation Instructions Fig. 9 —Size 18K with external condensate pump (optional) Low Static High Static Table 11 — Dimensions FRESH AIR AIR OUTLET AIR RETURN SIZE OF MODEL UNIT OUTLINE DIMENSION INTAKE OPENING SIZE OPENING SIZE MOUNTED LUG OPENING SIZE... - Page 17 45MBDAQ: Installation Instructions Air outlet side view Electric control box Bottom Top view Pipe side view Opposite pipe side view Air inlet 4 hanging bracket Bottom 25 Drain connecting pipe(for pump) 25 Drain pipe Test mouth & Test cover Fresh air intake...
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Page 18: Step 2: Confirm Installation
45MBDAQ: Installation Instructions Step 2: Confirm Installation The distance between the mounted indoor unit should meet the specifications illustrated in Figure 11. >11.8in(30cm) Strong and durable ceiling >0.8in(2cm) Indoor unit Left Right side side >0.8in(2cm) Service access Ceiling >7.9in(20cm) >11.8in(30cm) Floor Fig. - Page 19 45MBDAQ: Installation Instructions Step 3: Hang Indoor Unit Refer to the following diagrams to locate the four positioning screw bolt holes on the ceiling. Be sure to mark the paces where you will drill ceiling hook holes. Air outlet dimensions...
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Page 20: New Construction
45MBDAQ: Installation Instructions Installation Guidelines Wood Different ceiling types call for different mount applications. Place the 2. Install and fit pipes and wires after you have finished installing the wood mounting across the roof beam, then install the hanging screw main body. -
Page 21: Step 5: Filter Installation
45MBDAQ: Installation Instructions Step 4: Duct and Accessories Installation 1. Install the filter according to the size of the air inlet. 2. Install the canvas tie-in between the body and duct. NOTE: The air inlet and air outlet duct should be far enough apart enough to a avoid air passage short-circuit. -
Page 22: Drain Connect
45MBDAQ: Installation Instructions Fig. 26 —Drill Wall Hole Step 2: Connect Drain Hose Fig. 24 —Motor Maintenance The drainpipe is used to drain water away from the unit. Improper Pump Maintenance installation may cause unit and property damage. 1. Remove four screws from the drain pump. -
Page 23: Indoor Unit Dimensions
45MBDAQ: Installation Instructions ADDITIONAL DRAINAGE INSTRUCTIONS Vertical Installation Disable the pump: Indoor Unit Dimensions The pump must be disabled while the unit is installed vertically or the pump assembly is removed from its original position. If the unit’s dimensions match the contents in the diagram, follow these Open the cover of E-Parts Box assembly, unplug the “PUMP”... - Page 24 45MBDAQ: Installation Instructions Model B Drain Pipe Connecting: When installed vertically (up flow), the pump must be first disabled. Horizontal Installation (review “Disable the Pump:” on page 24). For the unit with an external With External Pump: pump, the whole pump assembly can be removed. Then take the cap on Drain connector A, B and C are initially covered with caps.
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Page 25: Condensate Drain Installation
45MBDAQ: Installation Instructions C. CONDENSATE DRAIN INSTALLATION The condensate pipe is used to drain water away from the unit. Improper installation may cause unit and property damage. The unit is supplied Ceiling with a drain adapter allowing the use of a field supplied 3/4 in. PVC Schedule 40 drain pipe. - Page 26 45MBDAQ: Installation Instructions CONDENSATE DRAIN AND CONDENSATE 3. Sizes 24K, 36K, 48K and 58K have a built-in condensate lift pump. Drain connections (A, B and C) are covered with caps. LIFT PUMP INSTALLATION (HORIZONTAL Connect the drainpipe to connector D (see Fig. 43).
- Page 27 45MBDAQ: Installation Instructions Remove the cap from connector C and connect the condensate drain pipe to 4. During this test, check all bends or joints for leakage. drain connector C (see Fig. 51). NOTE: For size 18K, the external condensate lift pump should be removed (see Fig.
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Page 28: Drainage Test
45MBDAQ: Installation Instructions Drainage Test Notes on Drainpipe Installation • When using an extended drainpipe, tighten the indoor connection with Check whether the drainpipe is unhindered. This test should be performed an additional protection tube. This prevents it from pulling loose. -
Page 29: Connect The Refrigerant Pipes
45MBDAQ: Installation Instructions D. CONNECT THE REFRIGERANT PIPES REFRIGERANT PIPING CONNECTION When connecting refrigerant piping, DO NOT let substances or gases other than the specified refrigerant enter the unit. The presence of other gases or substances will lower the unit’s capacity, and can cause abnormally high pressure in the refrigeration cycle. - Page 30 45MBDAQ: Installation Instructions • Remove PVC tape from ends of pipe when ready to perform flaring work. • Clamp flare from on the end of the pipe. The end of the pipe must extend beyond the flare form. Fig. 58 —Flare Form Fig.
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Page 31: Wireless Remote Controller Installation
45MBDAQ: Installation Instructions WIRELESS REMOTE CONTROLLER INSTALLATION Wired Remote Controller 5-Pin Connection IR Receiver Wired Remote Controller 4-Pin Connection CN40 on PCB Board Fig. 62 —Control Box Fig. 61 — Wireless Remote Controller (RG10R(2S)) NOTE: For remote control operation, refer to the remote control’s To attach the mounting bracket: owners manual. -
Page 32: Wired Remote Controller Installation
45MBDAQ: Installation Instructions WIRED REMOTE CONTROLLER OPTIONAL WIRED WALL-MOUNTED INSTALLATION REMOTE CONTROL INSTALLATION The wired remote controller comes with the following items: To connect the included wired remote controller (7 Day Programmable • A set of installation instructions and owner's manuals KSACN1401AAA) to the indoor unit, the 4-pin adapter cable supplied with •... - Page 33 45MBDAQ: Installation Instructions USING THE 120L WIRED CONTROLLER WHEN USING THE 120N WIRED CONTROLLER To set Static Pressure Airflow To Set Static Pressure Air Flow The factory default setting is SP1, The external static pressure can be manually changed to the fan curves 1,2,3,4,5,6,7,8.
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Page 34: Fan Performances At Varying Static Pressures
45MBDAQ: Installation Instructions FAN PERFORMANCES AT VARYING STATIC PRESSURES The factory default setting is SP1. Airflows and fan curves applicable starting on production of Week 28 Year 2020 (Serial Number 2820V10001). For previous serial numbers refer to previous revision of this document. - Page 35 45MBDAQ: Installation Instructions Low Static (CONT) Table 20 — 18K IN.W.G 0.04 0.08 0.12 0.16 0.24 0.28 0.32 0.36 Turbo Turbo Turbo Turbo - Airflow below 300 CFM or above 450 cfm/ton <300 CFM >450 CFM Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 36 45MBDAQ: Installation Instructions High Static Table 21 — 09K In.w.g 0.04 0.08 0.12 0.16 0.24 0.28 0.32 0.36 0.44 0.48 0.52 0.56 0.64 0.68 0.72 0.76 Turbo Turbo Turbo Turbo Turbo 361 342 305 256 300 278 237 174 Turbo...
- Page 37 45MBDAQ: Installation Instructions High Static (CONT) Table 22 — 12K IN.W.G 0.04 0.08 0.12 0.16 0.24 0.28 0.32 0.36 0.44 0.48 0.52 0.56 0.64 0.68 0.72 0.76 Turbo Turbo Turbo Turbo Turbo Turbo Turbo Turbo Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 38 45MBDAQ: Installation Instructions High Static (CONT) Table 23 — 18K In.w.g 0.04 0.08 0.12 0.16 0.24 0.28 0.32 0.36 0.44 0.48 0.52 0.56 0.64 0.68 0.72 0.76 Turbo Turbo Turbo Turbo Turbo Turbo Turbo Turbo Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 39 45MBDAQ: Installation Instructions High Static (CONT) Table 24 — 24K In.w.g 0.04 0.08 0.12 0.16 0.24 0.28 0.32 0.36 0.44 0.48 0.52 0.56 0.64 0.68 0.72 0.76 Turbo 1008 975 Turbo 1024 Turbo 1008 972 Turbo 1022 Turbo 1008 Turbo...
- Page 40 45MBDAQ: Installation Instructions High Static (CONT) Table 25 — 36K In.w.g 0.06 0.12 0.148 0.16 0.22 0.24 0.28 0.32 0.36 0.44 0.48 0.52 0.56 0.64 0.68 0.72 0.76 Turbo 1699 1621 1493 1370 1595 1501 1374 1254 1477 1383 1257 1137...
- Page 41 45MBDAQ: Installation Instructions High Static (CONT) Table 26 — 48K In.w.g 0.06 0.12 0.18 0.24 0.28 0.32 0.36 0.44 0.48 0.52 0.56 0.64 0.68 0.72 0.76 Turbo 2279 2161 1972 1779 2020 1948 1793 1629 1866 1751 1595 1423 1624...
- Page 42 45MBDAQ: Installation Instructions High Static (CONT) Table 27 — 60K In.w.g 0.04 0.08 0.12 0.16 0.24 0.28 0.32 0.36 0.44 0.48 0.52 0.56 0.64 0.68 0.72 0.76 Turbo 2484 2372 2107 1777 2203 2101 1848 1580 1985 1868 1609 1331...
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Page 43: Wire Connections
45MBDAQ: Installation Instructions E. WIRE CONNECTIONS WIRING PRECAUTIONS WARNING Before performing any electrical work, read these warnings. Before any electrical or wiring work, turn off the main power to the system. All wiring must comply with local and national electrical codes, regulations and must be installed by a licensed electrician. -
Page 44: Connection Diagrams
45MBDAQ: Installation Instructions CONNECTION DIAGRAMS 208/230V~60Hz Power Supply L1 L2 INDOOR OUTDOOR Main Indoor Unit Power to Signal High Signal High Power Supply Power Supply Indoor Unit UNIT UNIT Voltage Voltage 208/230V 208/230V 208/230V Fig. 64 —Sizes 06K, 09K, 12K, 18K (Low Static) Fig. - Page 45 45MBDAQ: Installation Instructions Fig. 66 —Size 36K (High Static) Fig. 67 —Sizes 48K and 58K (High Static) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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Page 46: Wiring Diagrams
45MBDAQ: Installation Instructions WIRING DIAGRAMS NOTE: Refer to the diagram label on the unit. Fig. 68 —Size 06K Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. - Page 47 45MBDAQ: Installation Instructions Fig. 69 —Sizes 09K, 12K, 18K, 24K Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 48 45MBDAQ: Installation Instructions Fig. 70 —Sizes 36K - 60K Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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Page 49: Capacity Setting
45MBDAQ: Installation Instructions CAPACITY SETTING ECN1 Dip Switch Instruction for Capacity Change ECN1 dip switch is used for capacity change When matching with single zone condensers, the indoor unit will automatically adjust to 9,000 BTU/H or 12,000 BTU/ according to condensers capacity. -
Page 50: Dip Switch Settings
45MBDAQ: Installation Instructions DIP SWITCH SETTINGS Table 28 — Dip Switch Settings DIAL CODE FUNCTION 1 ON&2 ON 1 ON&2 OFF 1 OFF&2 ON 1 OFF&2 OFF [Default] COOLING and HEATING or SW1-1 COOLING Only COOLING COOLING Only setting and HEATING... - Page 51 45MBDAQ: Installation Instructions Note on Circuit Breaker When the maximum current of the air conditioner is more than 16A, a circuit breaker or leakage protection switch with protective device shall be used (purchased separately). When the maximum current of the air conditioner is less than 16A, the power cord of air conditioner shall be equipped with plug (purchased separately).
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Page 52: Indoor Unit Wiring
45MBDAQ: Installation Instructions INDOOR UNIT WIRING 1. Prepare the cable for connection. a. Using wire strippers, strip the rubber jacket from both ends of the signal cable to reveal about 5.9 in (15 cm) of the wire. b. Strip the insulation from the ends of the wires. -
Page 53: Test Run
45MBDAQ: Installation Instructions TEST RUN Test Run Instructions CAUTION 1. Open both the liquid and gas stop valves. 2. Turn on the main power switch and allow the unit to warm up. Failure to perform the test run may result in unit damage, property 3. -
Page 54: Troubleshooting
45MBDAQ: Installation Instructions TROUBLESHOOTING Table 29 — Error Codes Display Malfunction and Protection Indication EC07 ODU Fan Speed Out of Control ODU EEPROM Parameter Error EC51 EC52 ODU Coil Temperature Sensor(T3) error ODU Ambient Temperature Sensor (T4) Error EC53 COMP. Discharge Temperature Sensor (TP) Error... -
Page 55: Ductless Start - Up Checklist - Single Zone
45MBDAQ: 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... -
Page 56: Performance Check
Outdoor Unit Error Code: Wall Controller: 24V Interface: Comments: __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ © 2024 Carrier. All rights reserved. Edition Date: 08/24 Catalog No: 45MBDAQ-01SI Replaces: New Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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Questions and answers
Can the Carrier 2-ton 45MBDAQ be mounted vertically on a wall with the air outlet on top side rather than horizontally on a ceiling?
No, the Carrier 2-ton 45MBDAQ cannot be mounted vertically on a wall with the air outlet on the top side. The installation instructions specify that the ceiling must be horizontal and able to support the unit's weight, indicating it is designed for ceiling-mounted installation, not vertical wall mounting.
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What is the part number of the internal fuse of the condenser mod: 37MARAQ18AA3
No puedo conectar el termostato ala unidad de evaporador