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38MARB
Outdoor Unit Single Zone Ductless System
Sizes 09 to 36
Fig. 1 -Sizes 9K to 36K
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
ACCESSORIES................................................................................2
DIMENSIONS..................................................................................4
CLEARANCES ................................................................................8
INSTALLATION REQUIREMENTS .............................................9
INSTALLATION .............................................................................9
Step 1 - Check Equipment ................................................................9
Step 2 - Mount Unit ..........................................................................9
Step 3 - Condensate Drain Installation .............................................10
Step 4 - Refrigerant Piping ...............................................................11
Step 5 - Evacuate Coil And Tubing System .....................................14
Step 6 - Electrical Connections.........................................................15
WIRING ...........................................................................................15
ELECTRICAL DATA......................................................................16
CONNECTION DIAGRAMS ..........................................................16
START-UP .......................................................................................17
CARE AND MAINTENANCE........................................................17
TROUBLESHOOTING ...................................................................17
OUTDOOR UNIT DIAGNOSTIC GUIDES ...................................18
DUCTLESS START-UP CHECKLIST ...........................................19
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Summary of Contents for Carrier 38MARB
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Page 1: Table Of Contents
38MARB Outdoor Unit Single Zone Ductless System Sizes 09 to 36 Installation Instruction TABLE OF CONTENTS PAGE SAFETY CONSIDERATIONS............2 ACCESSORIES................2 DIMENSIONS..................4 CLEARANCES ................8 INSTALLATION REQUIREMENTS ..........9 INSTALLATION ................9 Step 1 - Check Equipment ..............9 Step 2 - Mount Unit ................9 Step 3 - Condensate Drain Installation ..........10... -
Page 2: Safety Considerations
SAFETY CONSIDERATIONS WARNING Installing, starting up, and servicing air- conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location (roofs, elevated structures, etc.). ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or Only trained, qualified installers and service mechanics should install, start- up, and service this equipment. - Page 3 NOTE: - If the outdoor unit is higher than the indoor unit, prevent rain from flowing into the indoor unit along the connection pipe by making 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 it enters the wall.
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Page 4: Dimensions
DIMENSIONS System Size (115V) (208/230V) (208/230V) (208/230V) (208/230V) (208/230V) (208/230V) Unit Height (H) in (mm) 21.85 (555) 21.81 (554) 21.81 (554) 26.50 (673) 31.89 (810) 31.89(810) 31.89 (810) Width (W) in (mm) 30.12 (765) 31.69 (805) 31.69 (805) 35.04 (890) 37.24 (946) 37.24(946) 37.24 (946) - Page 5 DIMENSIONS (CONT) Fig. 4 — Sizes 9K-12K (208/230V) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 6 DIMENSIONS (CONT) Fig. 5 — Size 18K (208/230V) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 7 DIMENSIONS (CONT) Fig. 6 — Sizes 24K, 30K, and 36K (208/230V) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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Page 8: Clearances
CLEARANCES Air inlet Air outlet Fig. 7 — Clearances Table 3 — Clearance Dimensions MINIMUM VALUE UNIT IN. (MM) 24 (610) 24 (610) 24 (610) 4 (101) 4 (101) 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) -
Page 9: Installation Requirements
INSTALLATION REQUIREMENTS INSTALLATION • A location which is convenient to installation and not exposed to Step 1 - Check Equipment strong winds. • A location which can bear the weight of the outdoor unit and where Unpack the unit and move to the final location. Remove the carton, tak- the outdoor unit can be mounted in a level position. -
Page 10: Step 3 - Condensate Drain Installation
Step 3 - Condensate Drain Installation NOTE: Install drains must meet local sanitation codes. NOTE: Basepan built-in with multiple holes for proper draining during defrost. For applications where it is required to seal these Install the outdoor unit drain joint holes, and re-direct the condensate drain, rubber plugs are available through RCD. -
Page 11: Step 4 - Refrigerant Piping
Step 4 - Refrigerant Piping Table 5 — Piping and Refrigerant System Size (115V) (208/230V) (208/230V) (208/230V) (208/230V) (208/230V) (208/230V) Min. Piping Length ft.(m) 9.8(3) 9.8(3) 9.8(3) 9.8(3) 9.8(3) 9.8(3) 9.8(3) Standard Piping ft.(m) 24.6 (7.5) 24.6 (7.5) 24.6 (7.5) 24.6 (7.5) 24.6 (7.5) 24.6 (7.5) - Page 12 Use the following steps to connect the refrigerant piping: 5. Flare Pipe Ends Proper flaring is essential to achieving an airtight seal. 1. Run the interconnecting piping from the outdoor unit to the indoor a. After removing the burrs from the cut pipe, seal the ends with unit.
- Page 13 6. Connect the Pipes NOTE: Use both a backup wrench and a torque wrench when Connect the copper pipes to the indoor unit first, then connect the connecting or disconnecting pipes to or from the unit. pipes to the outdoor unit. Connect the low-pressure pipe first, then connect the high pressure pipe.
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Page 14: Step 5 - Evacuate Coil And Tubing System
Step 5 - Evacuate Coil And Tubing System Evacuation Evacuation of the system will remove air or nitrogen (non-condensables) as CAUTION well as moisture. A proper vacuum will assure a tight, dry system before charging with refrigerant. The two methods used to evacuate a system are the deep vacuum method and the triple vacuum method. -
Page 15: Step 6 - Electrical Connections
Step 6 - Electrical Connections WIRING All wires must be sized per NEC (National Electrical Code) or CEC Install All Power and Interconnecting Wiring to (Canadian Electrical Code) and local codes. Use Electrical Data table MCA Outdoor Units (minimum circuit amps) and MOCP (maximum over current protection) to correctly size the wires and the disconnect fuse or breakers respectively. -
Page 16: Electrical Data
ELECTRICAL DATA Table 9 — Electrical Data Outdoor Unit 12K(115V) 9K(208/230V) 12K(208230V) 18K(208/230V) 24K(208/230V) 30K(208/230V) 36K(208/230V) Minimum Circuit Ampacity (MCA) Maximum Overcurrent Protection Ampacity (MOPA) Voltage-Phase-Frequency 115-1-60 208/230-1-60 Max – Min Voltage Range 127-104 253-187 Cooling Running Current 3.72 11.4 18.5 Power Consumption 1440... -
Page 17: Start-Up
START-UP TROUBLESHOOTING Test Operation For ease of service, the systems are equipped with diagnostic code dis- play LEDs on both the indoor and outdoor units. The outdoor Perform a test operation after completing a gas leak and electrical safety diagnostic display are two LEDs (Red and Green) on the outdoor unit check. -
Page 18: Outdoor Unit Diagnostic Guides
OUTDOOR UNIT DIAGNOSTIC GUIDES For ease of service, the systems are equipped with diagnostic code display LEDs on both the indoor and outdoor units. The outdoor diagnostic is displayed on the outdoor unit microprocessor board. There may be a few error codes displayed in the indoor unit that might relate to the outdoor unit's problems. If possible, always check the diagnostic codes displayed on the indoor unit first. -
Page 19: Ductless Start-Up Checklist
DUCTLESS START-UP CHECKLIST 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 Wiring Electrical Wire Size and Type Used? AWG:__________ TYPE:_________ Are there any breaks, splices, wire nuts or butt connectors between the outdoor unit and the indoor door unit? YES:______ NO:______ Was the wiring from the outdoor unit port to the correct indoor unit verified? - Page 20 24V Interface: Comments: __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ © 2021 Carrier. All rights reserved. Edition Date: 04/21 Catalog No: 38MARB-02SI A Carrier Company Replaces: 38MARB-01SI Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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I need the osp shake test installation paperwork for model# 38marbq24aa301 for our inspector on a hcai hospital project in California. I can not find it looking up the osp-0125 sticker on the condenser.