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Owner & Installation
Manual
PRODIRECT™ SERIES
Split System Heat Pump & Air Conditioner
13 -14 SEER 1.5-5 Tons Model
HHP140* & HAC140*
Due to updates and constantly improving performance, the information and instructions within this
manual are subject to change without notice. Please visit www.mrcool.com/documentation to
ensure you have the latest version of this manual.
Version Date: 6-25-21
Thank you for choosing MRCOOL. Please read this manual carefully before installation and keep it for future reference.
Copyright © 2021 MRCOOL, LLC
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Table of Contents
Related Manuals for MrCool PRODIRECT Series
Summary of Contents for MrCool PRODIRECT Series
- Page 1 Please visit www.mrcool.com/documentation to ensure you have the latest version of this manual. Version Date: 6-25-21 Thank you for choosing MRCOOL. Please read this manual carefully before installation and keep it for future reference. Copyright © 2021 MRCOOL, LLC...
- Page 2 Read these instructions thoroughly before attempting installation or operation. Failure to follow these instructions may result in improper installation, adjustment, service or maintenance possibly resulting in fire, electrical shock, property damage, personal injury or death. mrcool.com...
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Page 3: Table Of Contents
8 LOCATION SELECTION 9 OUTDOOR UNIT INSTALLATION (TOP DISCHARGE UNIT) 10 REFRIGERANT PIPE INSTALLATION 11 VACUUM DRYING AND LEAKAGE CHECKING 12 ADDITIONAL REFRIGERANT CHARGE 13 PIPE INSULATION 14 ELECTRICAL WIRING INSTALLATION & REQUIREMENTS 15 TEST OPERATION 16 TROUBLESHOOTING mrcool.com | Page 1... -
Page 4: Dimensions
OUTDOOR UNIT 1. Dimensions Fig. 1 21-3/4 [554] 21-3/4 [554] 21-3/4 [554] 21-3/4 [554] 21-3/4 [554] 21-3/4 [554] Table - 1 mrcool.com | Page 2... -
Page 5: Service Space
OUTDOOR UNIT 2. Service Space Fig. 2 mrcool.com | Page 3... -
Page 6: Piping Diagrams
OUTDOOR UNIT 3. Piping Diagrams Applicable for 18k, 24k, 30k, 36k cooling only type Fig. 3-1 Applicable for 18k, 24k, 30k, 36k cooling & heating type Fig. 3-2 mrcool.com | Page 4... - Page 7 OUTDOOR UNIT Applicable for 42k, 48k, 60k cooling only type Fig. 3-3 Applicable for 42k, 48k, 60k cooling & heating type Fig. 3-4 mrcool.com | Page 5...
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Page 8: Wiring Diagrams
2. Replacement wire must be the same gauge and insulation type as original wire. 3. The units should install the stated-cross-section ground wire and keep it grounding properly and reliably. 4. For indoor transformer, the current of 24V load voltage is not less than 1.5A. mrcool.com | Page 6... -
Page 9: Electric Characteristics
OUTDOOR UNIT 5. Electrical Characteristics Table - 2 mrcool.com | Page 7... -
Page 10: Operation Limits
(18K, 24K, 30K, and 36K units only) to shorten the restart time. In the case of high and low pressure imbalance, a booster can increase the starting torque of the compressor allowing it to start normally. mrcool.com | Page 8... -
Page 11: Installation Procedure
Installation and Insulation Drainage Pipe Installation Drainage Pipe Installation And Insulation And Insulation Vacuum Drying and Leakage Check Additional Refrigerant Charge Insulate the joint and connections of the refrigerant pipe Wiring connection and electrical safety check Test operation mrcool.com | Page 9... -
Page 12: Location Selection
• If a protective structure is built over the unit to prevent direct sunlight, rain exposure, direct strong wind, snow, or the accumulation of other types of debris, make sure the heat that radiates from the condenser is not restricted. Fig 8-1 mrcool.com | Page 10... -
Page 13: Outdoor Unit Installation (Top Discharge Unit)
Fig.9-2 and install the unit in a level position. Normal operating sound levels may be undesirable if the unit is placed directly under windows of certain rooms (bedrooms, study, etc.). The top of unit discharge area must be unrestricted for a minimum 6 feet above the unit. mrcool.com | Page 11... - Page 14 When installing units on a roof, the structure must be capable of supporting the total weight of the unit. This also includes any framing of the unit, rails, etc., which should be used to minimize the transmission of sound or vibration into the conditioned space. mrcool.com | Page 12...
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Page 15: Refrigerant Pipe Installation
Always use a pressure regulator and safety valve to ensure that only low pressure dry nitrogen is introduced into the tubing. Only a small amount of flow is necessary to displace air and prevent oxidation. mrcool.com | Page 13... - Page 16 After brazing, cool the joint with a wet rag. •The valve can be opened by removing the plunger cap, and then fully insert a hex wrench into the stem turning counter-clockwise until the valve stem just touches the chamfered retaining wall. Fig. 10-2 mrcool.com | Page 14...
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Page 17: Vacuum Drying And Leakage Checking
3. Install period is taking an extended amount of time, rain water or moisture could penetrate into the pipeline. NOTE: Be sure to use a micron gauge during vacuuming that can hold under 800 microns. Pull down to 500 microns. mrcool.com | Page 15... -
Page 18: Additional Refrigerant Charge
Multiply the length of the liquid pipe and the empirical coefficient (the coefficient is determined by the pipe diameter) to verify the correct charge. mrcool.com | Page 16... -
Page 19: Pipe Insulation
• Insulate the joint parts Purpose of drainage pipe insulation The temperature of condensate drainage water is very low. However, if insulation is insufficient, it could cause condensate to form and cause leakage which could lead to property damage. mrcool.com | Page 17... -
Page 20: Electrical Wiring Installation & Requirements
• Wiring of varying voltage should not be in one wire tube. • Ensure that the color of the wires of the outdoor unit and the terminal No. are same as those of indoor unit respectively. Electric Wiring Guage Table - 6 mrcool.com | Page 18... - Page 21 OUTDOOR UNIT Table - 7 mrcool.com | Page 19...
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Page 22: Test Operation
Outdoor Unit: Is there any vibration or abnormal noise during operation? Does the generated wind, noise, or condensation created by the air conditioner have any negative influence on the surrounding area? Has any of the refrigerant leaked? mrcool.com | Page 20... -
Page 23: Troubleshooting
OUTDOOR UNIT 16. Troubleshooting System Alarm: Green light or Yellow light slowly flashes System lock: Green Turn off power for 10-15 light goes minutes and then out and restart. Yellow light is on mrcool.com | Page 21... - Page 24 Well connected, then replace sensor and PCB the sensor or PCB Sensor is open circuit? Error Check the sensor is good or Replace the bad sensor Sensor is short circuit? not? Error Check PCB Component damaged? Replace PCB Wet? mrcool.com | Page 22...
- Page 25 Discharge the refrigerant & vacuum, There is N or air in the system then recharge the refrigerant Error Too much refrigerant in the system Discharge some refrigerant Error Check the switch and PCB Replace the switch and PCB mrcool.com | Page 23...
- Page 26 Discharge the refrigerant & vacuum, There is N or air in the system then recharge the refrigerant Error Check if the low pressure is too slow Clean the system to remove contaminants Error Check the Pcb Replace the Pcb mrcool.com | Page 24...
- Page 27 PRODIRECT™ Series Split System Heat Pump & Air Conditioner 13 -14 SEER 1.5-5 Tons Model HHP140* & HAC140* The design and specifications of this product and/or manual are subject to change without prior notice. Consult with the sales agency or manufacturer for details.
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