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37MAHAQ
Outdoor Unit Single Zone Ductless System
Sizes 06K-33K
Fig. 1 - Sizes 06K to 33K
NOTES: Read the entire instruction manual before
starting the installation.
Images are for illustration purposes only. Actual
models may differ slightly.
Installation Instruction
Specifications subject to change without notice.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS........................................................2
CAPACITY ......................................................................................7
ACCESSORIES................................................................................8
DIMENSIONS..................................................................................9
CLEARANCES ................................................................................13
INSTALLATION .............................................................................14
REFRIGERANT PIPING.................................................................16
EVACUATE COIL AND TUBING SYSTEM................................18
WIRING ...........................................................................................19
ELECTRICAL DATA......................................................................19
INSTALL THE OUTDOOR UNIT..................................................20
Step 1 - Select the Installation Location ...........................................20
Step 2 - Install the Drain Joint ..........................................................21
Step 3 - Anchor the Outdoor Unit.....................................................22
Step 4 - Connect Signal and Power Cables ......................................23
START-UP .......................................................................................25
CARE AND MAINTENANCE........................................................25
TROUBLESHOOTING ...................................................................25
ERROR CODES...............................................................................26
DUCTLESS START-UP CHECKLIST - Single Zone ....................27
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Summary of Contents for Carrier 37MAHAQ
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Page 1: Table Of Contents
37MAHAQ Outdoor Unit Single Zone Ductless System Sizes 06K-33K Installation Instruction TABLE OF CONTENTS PAGE SAFETY CONSIDERATIONS............2 CAPACITY ..................7 ACCESSORIES................8 DIMENSIONS..................9 CLEARANCES ................13 INSTALLATION ................14 REFRIGERANT PIPING..............16 EVACUATE COIL AND TUBING SYSTEM........18 WIRING ...................19 ELECTRICAL DATA..............19 INSTALL THE OUTDOOR UNIT..........20 Step 1 - Select the Installation Location ...........20... -
Page 2: Safety Considerations
37MAHAQ: Installation Instructions SAFETY CONSIDERATIONS Table 1 — Symbols displayed on the indoor unit or outdoor unit Installing, starting up, and servicing air- conditioning equipment can be This symbol shows that hazardous due to system pressures, electrical components, and equipment this appliance used a location (roofs, elevated structures, etc.). -
Page 3: Electrical Shock Hazard
37MAHAQ: Installation Instructions 1. Installation (where refrigerant pipes are allowed) –Any person who is involved with working on or breaking into a WARNING refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorizes their ELECTRICAL SHOCK HAZARD... -
Page 4: Information Servicing
37MAHAQ: Installation Instructions a. The minimum test pressure for the low side of the system shall be shall be available to hand. Have a dry power or CO2 fire the low side design pressure and the minimum test pressure for the extinguisher adjacent to the charging area. - Page 5 37MAHAQ: Installation Instructions 13. Detection of flammable refrigerants • Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as Under no circumstances shall potential sources of ignition be used in possible to minimize the amount of refrigerant contained in them.
- Page 6 37MAHAQ: Installation Instructions 18. Recovery 19. Transportation, marking, and storage for units a. Transport of equipment containing flammable refrigerants. When removing refrigerant from a system, either for servicing or Compliance with the transport regulations. decommissioning, it is recommended good practice that all b.
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Page 7: Capacity
37MAHAQ: Installation Instructions Table 2 — A (min) hinst: Height Above Floor Level to Center of Indoor Unit / feet (meters ≤ 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) -
Page 8: Accessories
37MAHAQ: 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 work has been completed. -
Page 9: Dimensions
37MAHAQ: Installation Instructions DIMENSIONS Table 6 — Dimensions and Weights SYSTEM SIZE (208/230 V) (208/230 V) (208/230V) (208/230 V) (208/230 V) (208/230 V) Height (H) in (mm) 21.85 (555) 21.81 (554) 21.81 (554) 26.50 (673) 31.89 (810) 31.89 (810) Width (W) in (mm) 30.12 (765) - Page 10 37MAHAQ: Installation Instructions Fig. 4 — Sizes 09K - 12K Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 11 37MAHAQ: Installation Instructions Fig. 5 — Size 18K Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 12 37MAHAQ: Installation Instructions Fig. 6 — Sizes 24K and 33K Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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Page 13: Clearances
37MAHAQ: Installation Instructions CLEARANCES Fig. 7 — Clearances NOTE: The outdoor unit must be mounted at least 2in (50mm) above the maximum anticipated snow depth. 19in (48cm) or more on a multiple parallel unit arrangement 4in (10cm) or more on a single 9.8in (25cm) or more for... -
Page 14: Installation
37MAHAQ: Installation Instructions INSTALLATION Table 7 — Base Pan Rubber Plugs OUTDOOR UNIT MODEL BASE PAN RUBBER PLUGS QTY. NUMBER PER UNIT RCD PART NUMBER WARNING 37MAHAQ06AA3 12600801A00077 37MAHAQ09AA3 Prior to Installation 12600801A00077 37MAHAQ12AA3 Before installing the indoor unit, ensure the compatibility with the... - Page 15 37MAHAQ: Installation Instructions WARNING CAUTION All field piping must be completed by a licensed technician and DO NOT install the connecting pipe until both the indoor and must comply with the local and national regulations. outdoor units have been installed.
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Page 16: Refrigerant Piping
37MAHAQ: Installation Instructions REFRIGERANT PIPING Table 8 — Refrigerant Piping Table MODEL 37MAHAQ06AA3 37MAHAQ09AA3 37MAHAQ12AA3 37MAHAQ18AA3 37MAHAQ24AA3 37MAHAQ33AA3 Refrigerant Type Type R454B R454B R454B R454B R454B R454B Charge Amount lb. (kg) 2.03 (0.92) 2.2 (1.00) 2.2 (1.00) 3.46 (1.57) 3.97 (1.80) 5.45 (2.47) - Page 17 37MAHAQ: Installation Instructions f. Place the flaring tool onto the form. g. Turn the handle of the flaring tool clockwise until the pipe is fully flared. Flare the pipe in accordance with the dimensions in Table 9. 90 ° ± 4 R0.4~0.8...
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Page 18: Evacuate Coil And Tubing System
37MAHAQ: Installation Instructions EVACUATE COIL AND TUBING Deep Vacuum Method SYSTEM The deep vacuum method requires a vacuum pump capable of pulling a vacuum of 500 microns and a vacuum gauge capable of accurately measuring this vacuum depth. The deep vacuum method is the most positive CAUTION way of assuring a system is free of air and moisture (see Figure 18). -
Page 19: Wiring
37MAHAQ: Installation Instructions WIRING CAUTION All wires must be sized per NEC (National Electrical Code) or CEC (Canadian Electrical Code) and local codes. Use Electrical Data table MCA (minimum EQUIPMENT DAMAGE HAZARD circuit amps) and MOCP (maximum over current protection) to correctly size the wires and the disconnect fuse or breakers respectively. -
Page 20: Install The Outdoor Unit
37MAHAQ: Installation Instructions INSTALL THE OUTDOOR UNIT Step 1 - Select the Installation Location NOTE: Before installing the outdoor unit, select an appropriate location. The following details are standards designed to help select an appropriate location for the unit. Proper installation locations meet the following standards: 20in.(500mm) or more when front... -
Page 21: Step 2 - Install The Drain Joint
37MAHAQ: Installation Instructions Step 2 - Install the Drain Joint NOTE: Before bolting the outdoor unit in place, you must install the drain joint at the bottom of the unit. For units with a base pan built-in (with multiple holes for proper draining during defrost), the drain joint is not needed to be installed. -
Page 22: Step 3 - Anchor The Outdoor Unit
37MAHAQ: Installation Instructions Step 3 - Anchor the Outdoor Unit WARNING When drilling into concrete, eye protection is recommended at all times. • The outdoor unit can be anchored to the ground or to a wall-mounted bracket with bolt (M10). Prepare the installation base of the unit according to Figure 22. -
Page 23: Step 4 - Connect Signal And Power Cables
37MAHAQ: Installation Instructions Step 4 - Connect Signal and Power Cables WARNING All wiring work must be performed strictly in accordance with the wiring diagram located in the wire cover of the outdoor unit. Before performing any electrical or wiring work, turn off the main power to the system. - Page 24 37MAHAQ: Installation Instructions The outside unit’s terminal block is protected by an electrical wiring cover on the side of the unit. A comprehensive wiring diagram is printed on the inside of the wiring cover. Terminal block 1. Remove the wire cover from the unit by loosening the 3 screws.
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Page 25: Start-Up
37MAHAQ: Installation Instructions START-UP CARE AND MAINTENANCE Test Operation To help ensure high performance and minimize possible equipment failure, periodic maintenance must be performed on this equipment. Perform a test operation after completing a gas leak and electrical safety Maintenance frequency may vary depending upon geographic areas. -
Page 26: Error Codes
37MAHAQ: Installation Instructions ERROR CODES Table 14 — Error Codes Display Malfunction and Protection Indication EC07 ODU Fan Speed Out of Control ODU EEPROM Parameter Error EC51 ODU Coil Temperature Sensor(T3) error EC52 ODU Ambient Temperature Sensor (T4) Error EC53 COMP. -
Page 27: Ductless Start-Up Checklist - Single Zone
37MAHAQ: 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 28: Performance Check
24V Interface: Comments: __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ © 2024 Carrier. All rights reserved. Edition Date: 09/24 Catalog No: 37MAHA-01SI A Carrier company Replaces: NEW Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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