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45MBFAQ
Floor Console Unit Ductless System
Sizes 09K to 16K
Fig. 1 -Sizes 09K - 16K
NOTES: Read the entire instruction manual before starting the
installation. Images are for illustration purposes only.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS ....................................................... 1
COMPATIBILITY........................................................................... 8
PARTS LIST .................................................................................... 9
ACCESSORIES ............................................................................... 10
MODEL NUMBERS ....................................................................... 10
SYSTEM REQUIREMENTS .......................................................... 11
WIRING ........................................................................................... 11
DIMENSIONS ................................................................................. 12
CONNECTION DIAGRAM............................................................ 14
WIRING DIAGRAM....................................................................... 14
INSTALLATION OVERVIEW ...................................................... 15
A. INSTALL INDOOR UNIT ......................................................... 16
B. INSTALL DRAIN PIPE.............................................................. 20
C. CONNECT THE REFRIGERANT PIPES ................................. 21
D. OUTDOOR INSTALLATION ................................................... 22
E. UNIT WIRING............................................................................ 23
ADDING R454B REFRIGERANT ................................................. 24
UNIT WIRING ................................................................................ 24
F. PERFORM A TEST RUN ........................................................... 25
WIRELESS REMOTE CONTROLLER INSTALLATION ........... 26
LATION (OPTIONAL) ................................................................... 26
TROUBLESHOOTING................................................................... 27
DUCTLESS START-UP CHECKLIST - Single Zone.................... 28
Installation Instruction
PAGE
Specifications subject to change without notice.
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air- conditioning equipment can
be hazardous due to system pressures, electrical components, and
equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics should install,
start- up, and service this equipment.
Untrained personnel can perform basic maintenance functions such as
coil cleaning. All other operations should be performed by trained
service personnel only.
When working on the equipment, observe the precautions in the
literature and on tags, stickers, and labels attached to the equipment.
Follow all safety codes.Wear safety glasses and work gloves. Keep a
quenching cloth and a fire extinguisher nearby when brazing. Use care
in handling, rigging, and setting bulky equipment.
Read these instructions thoroughly and follow all warnings or
cautions included in the literature and attached to the unit. Consult
local building codes and National Electrical Code (NEC) for special
requirements. Recognize safety information.
This is the safety-alert symbol.
When you see this symbol on the unit and in instructions or manuals,
be alert to the potential for personal injury. Understand these signal
words: DANGER, WARNING, and CAUTION. These words are
used with the safety- alert symbol.
DANGER identifies the most serious 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.
The following symbols may be seen on the unit.
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Summary of Contents for Carrier 45MBFAQ
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Page 1: Table Of Contents
45MBFAQ Floor Console Unit Ductless System Sizes 09K to 16K Installation Instruction SAFETY CONSIDERATIONS Installing, starting up, and servicing air- conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location (roofs, elevated structures, etc.). Only trained, qualified installers and service mechanics should install, start- up, and service this equipment. -
Page 2: Electrical Shock Hazard
45MBFAQ: Installation Instructions Table 1 —Symbols displayed on the indoor unit or outdoor unit CAUTION This symbol shows that this appliance used a flammable EQUIPMENT DAMAGE HAZARD refrigerant. If the refrigerant is leaked and WARNING Failure to follow this caution may result in equipment damage or exposed to an external improper operation. - Page 3 45MBFAQ: Installation Instructions WARNING PERSONAL INJURY AND PROPERTY DAMAGE HAZARD For continued performance, reliability, and safety, the only approved accessories and replacement parts are those specified by the equipment manufacturer. The use of non-manufacturer approved parts and accessories could invalidate the equipment limited warranty and result in a fire risk, equipment malfunction, and failure.
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Page 4: Information Servicing
45MBFAQ: Installation Instructions 1. Installation (where refrigerant pipes are allowed) a. The minimum test pressure for the low side of the system shall be –Any person who is involved with working on or breaking into a the low side design pressure and the minimum test pressure for the... - Page 5 45MBFAQ: Installation Instructions shall be available to hand. Have a dry power or CO2 fire Under no circumstances shall potential sources of ignition be used in extinguisher adjacent to the charging area. the searching for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used.
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Page 6: Dehumidification (Dry)
45MBFAQ: Installation Instructions • Cylinders shall be kept upright. order. Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs. • Charging must be performed by liquid charging method. • Ensure that the refrigeration system is grounded prior to charging the The recovery equipment shall be in good working order with a set of system with refrigerant. - Page 7 45MBFAQ: Installation Instructions For R-454B Refrigerant Charge Amount and Minimum Room Area: The machine you purchased may be one of the types in Table 3. The indoor and outdoor units are designed to be used together. Please check the machine you purchased. The height of the room cannot be less then 7.3ft/2.2m, and the minimum room area of operating or storage should be as specified in Table 3.
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Page 8: Airflow Information
45MBFAQ: Installation Instructions Airflow Information When the unit detects a refrigerant leak, the minimum airflow of the indoor unit is as follows (applicable to the units with refrigerant sensors only). Table 4 — Airflow Information MODEL NOMINAL AIR VOLUMECFM (M... -
Page 9: Parts List
45MBFAQ: Installation Instructions PARTS LIST Air flow louver (at air outlet) Air inlet (with air filter installed) Display panel Drain pipe Connecting pipe Air inlet Air outlet Fig. 2 — Parts Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. -
Page 10: Optional Accessories
45MBFAQ: Installation Instructions ACCESSORIES The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to install the air conditioner. Improper installation may result in water leakage, electrical shock and fire, or cause the equipment to fail. The items are not included with the air conditioner must be purchased separately. -
Page 11: System Requirements
45MBFAQ: Installation Instructions SYSTEM REQUIREMENTS Allow sufficient space for airflow between the unit and walls or ceilings). NOTE: Before performing any electrical work, read these regulations. Piping 1. All wiring must comply with the local and national electrical codes, IMPORTANT: Both refrigerant lines must be insulated regulations and must be installed by a licensed electrician. -
Page 12: Dimensions
45MBFAQ: Installation Instructions DIMENSIONS Table 11 — Dimensions SYSTEM SIZE (208/230 V) (208/230 V) (208/230 V) Height (H) in (mm) 24.45(621) 24.45(621) 24.45(621) Width (W) in (mm) 31.26(794) 31.26(794) 31.26(794) Depth (D) in (mm) 7.87(200) 7.87(200) 7.87(200) Weight - Net lbs. -
Page 13: Installation Clearances
45MBFAQ: Installation Instructions INSTALLATION CLEARANCES 7.88in(200mm) ≥3.94in(100mm) The distance between the mounted indoor unit should meet the specifications ≥39.37in illlustrated in the (1000mm) following diagram. 5.90in(150mm) 31.26in(794mm) 5.90in(150mm) Fig. 4 — Installation Clearances Connections Remove the sensing device’s installation bracket (see Fig. 5). -
Page 14: Connection Diagram
45MBFAQ: Installation Instructions CONNECTION DIAGRAM 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. 6 — Sizes 09K, 12K, 16K WIRING DIAGRAM Fig. -
Page 15: Installation Overview
45MBFAQ: Installation Instructions INSTALLATION OVERVIEW 1. Install the indoor unit. 5. Connect the wires. Fig. 8 — Install the indoor unit 2. Install the drain pipe. Fig. 12 — Connect the wires 6. Evacuate the refrigeration system. Fig. 9 — Install the drain pipe 3. -
Page 16: Install Indoor Unit
45MBFAQ: Installation Instructions A. INSTALL INDOOR UNIT Step 1 - Select Installation Location NOTE: Panel installation should be performed after piping and wiring have been completed. Proper installation locations meet the following standards: Enough room exists for the There is no direct radiation Enough room exists for connecting the pipe and drainpipe. -
Page 17: Step 2 - Installing The Main Body
45MBFAQ: Installation Instructions Step 2 - Installing the Main Body After loosening the screws, remove the mounting plate from the unit. Remove the mounting plate NOTE: Loosen the screw If the pipe comes out on the left, it is necessary to loosen the... -
Page 18: Mounting Plate
45MBFAQ: Installation Instructions Bottom mounting plate installation without skirting line. Mounting Plate The bottom mounting plate is screwed directly to the wall. Straighten Fig. 17 — Straighten Fig. 15 — Bottom Mount Installation Without Skirting Line Bottom Mounting Plate Installation... - Page 19 45MBFAQ: Installation Instructions Step 3 - Breakdown Indoor Unit to Connect Pipes Open the bottom piping cover plate. Press and hold the bottom two buckles, and then rotate to open the piping cover plate. Two buckles Refrigerant pipe Drain-pipe Power cord Fig.
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Page 20: Install Drain Pipe
45MBFAQ: Installation Instructions B. INSTALL DRAIN PIPE Step 1 - Drill Wall Hole For Connective Piping Step 2 - Connect Drain Hose The drainpipe is used to drain water away from the unit. Improper 1. Determine the location of the wall hole based on the location of the installation may cause unit and property damage. -
Page 21: Connect The Refrigerant Pipes
45MBFAQ: Installation Instructions C. CONNECT THE REFRIGERANT PIPES NOTE: When connecting multiple drainpipes, install the pipes as shown in Figure 20. CAUTION The branching pipe must be installed horizontally. An angle of more than 10° may cause malfunction. DO NOT install the connecting pipe until both the indoor and outdoor units have been installed. -
Page 22: Outdoor Installation
45MBFAQ: Installation Instructions Place flare nuts on both ends of pipe. Ensure they are facing in the right direction, because you can not put them on or change their direction after flaring. Flare nut Indoor unit tubing Pipe Flare nut Fig. -
Page 23: Unit Wiring
45MBFAQ: Installation Instructions NOTE: Minimum Bend Radius: Carefully bend the tubing in the • Only connect the unit to an individual branch circuit. Do not connect middle according to the diagram below. DO NOT bend the another appliance to that outlet. -
Page 24: Adding R454B Refrigerant
45MBFAQ: Installation Instructions ADDING R454B REFRIGERANT Chassis Casing connecting plate CAUTION DO NOT MIX REFRIGERANT TYPES Some systems require additional charging depending on pipe lengths. In Fig. 30 — Remove the casing North America, the standard pipe length is 25ft (7.5m). The refrigerant should be charged from the service port on the outdoor unit’s low... -
Page 25: Perform A Test Run
45MBFAQ: Installation Instructions Test Run Instructions 6. Connect the u-lugs to the terminals. Match the wire colors/labels with the labels on the terminal block, Firmly screw the u-lug of each wire to its corresponding terminal. Refer to the Serial Number and Wiring 1. -
Page 26: Wireless Remote Controller Installation
45MBFAQ: Installation Instructions WIRELESS REMOTE CONTROLLER WIRED WALL-MOUNTED REMOTE INSTALLATION CONTROLLER INSTALLATION (OPTIONAL) The wired remote controller comes with the following items: • A set of installation instructions and owner's manuals • 3 M4X20 Screws to mount on the wall •... -
Page 27: Troubleshooting
45MBFAQ: Installation Instructions TROUBLESHOOTING Table 14 — Error Codes Display Malfunction and Protection Indication ODU Fan Speed Out of Control EC07 ODU EEPROM Parameter Error EC51 EC52 ODU Coil Temperature Sensor(T3) error ODU Ambient Temperature Sensor (T4) Error EC53 EC54 COMP. -
Page 28: Ductless Start-Up Checklist - Single Zone
45MBFAQ: 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... -
Page 29: Error Codes
45MBFAQ: Installation Instructions Ductless Start-Up Checklist (CONT) Piping Leak Check: System held 500 psig (max. 550psi) for a minimum of 30 minutes using dry nitrogen. YES:______ NO:______ Evacuation Method: • YES:______ NO:______ Was the Triple Evacuation Method used as outlined in the installation manual? •... - Page 30 45MBFAQ: Installation Instructions © 2024 Carrier. All rights reserved. Edition Date: 09/24 Catalog No: 45MBFAQ-01SI Replaces: NEW Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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