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Advantage Series
Installation & Owner's Manual
MODELS:
A-*-HP-WMAH-115D-O
A-*-HP-WMAH-230D-O
A-*-HP-C-115D-O
A-*-HP-C-230D-O
Read this manual carefully before installation and keep it where
the operator can easily find it for future reference.
Due to updates and constantly improving performance, the
information and instructions within this manual are subject to
change without notice.
Version Date: January 27, 2025
Please visit www.MRCOOL®.com/documentation
to ensure you have the latest version of this manual.
This product utilizes R-454B refrigerant
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Summary of Contents for MrCool Advantage A-HP-WMAH-115D-O Series
- Page 1 Due to updates and constantly improving performance, the information and instructions within this manual are subject to change without notice. Version Date: January 27, 2025 Please visit www.MRCOOL®.com/documentation to ensure you have the latest version of this manual.
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Page 2: Table Of Contents
......................... 40 CARE & MAINTENANCE ....................41 POST INSTALLATION ...................... 43 12.1 Troubleshooting ....................43 12.2 Error Display (Indoor Unit) ................46 12.3 Error Display (Outdoor Unit with Auxiliary Board) ........48 12.4 Quick Maintenance by Error Code ..............49 mrcool.com... -
Page 3: Safety Precautions
9. Do not operate the unit in a wet room such as a bathroom or laundry room. Exposure to water can cause electrical components to short circuit. 10. Do not directly expose body to cool air for prolonged periods of time. 11. Appropriately ventilate the area if the unit is used together with other heating devices to avoid oxygen deficiency. mrcool.com... - Page 4 15 years. When the refrigerant sensor malfunctions, the indoor unit will display the error code "FHCC". The refrigerant sensor can not be repaired and can only be replaced by MRCOOL®. It can only be replaced with a sensor specified by MRCOOL®. mrcool.com...
- Page 5 This may vary between residential, commercial, and industrial building codes. • Field-made refrigerant joints indoors must be tightness-tested according to the following requirements: the test method must have a sensitivity of 5 grams per year of refrigerant or better mrcool.com...
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Page 6: Information Servicing
When electrical components are being changed, they must be the correct specification. The manufacturer's maintenance and service guidelines must be followed at all times. If in doubt, consult MRCOOL® for assistance. The following checks will be applied to installations using FLAMMABLE REFRIGERANTS: •... - Page 7 For appliances containing flammable refrigerants, purging refrigerants will be conducted by breaking the vacuum in the system with oxygen-free nitrogen. Then, continue to fill until the working pressure is achieved. Next, vent to the atmosphere. Finally, pull down into a vacuum (optional for A2L). This process will be repeated mrcool.com...
- Page 8 15. Charging Procedures In addition to conventional charging procedures, follow these requirements: • Use appropriate tools only, (in case of uncertainty please consult MRCOOL® on tools to use with FLAMMABLE Refrigerants). • Ensure that contamination and mixing of different refrigerants does not occur when using charging equipment.
- Page 9 The recovery equipment must be in good working order, and with a set of instructions stating that the equipment is suitable for recovery of flammable refrigerant. If in doubt, consult MRCOOL®. In addition, a set of calibrated weighing scales should be available and in good working order. Hoses must be intact with leak- free disconnect couplings and in good condition.
- Page 10 SAFETY ELECTRICAL WARNINGS • Only use the specified wire. If the wire is damaged, it must be replaced by MRCOOL®, or an HVAC technician in order to avoid a hazard. • The product must be properly grounded at the time of installation, or electric shock may occur.
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Page 11: Packing List
Φ1/4in (Φ6.35mm) Φ3/8in (Φ9.52 mm) Φ1/4in (Φ6.35mm) Φ3/8in (Φ9.52 mm) Parts purchased separately. Φ1/4in (Φ6.35mm) Φ1/82in (Φ12.7 mm) Connecting Pipe Consult MRCOOL® about Assembly proper pipe size of the Φ3/8in (Φ9.52mm) Φ5/8in (Φ16 mm) purchased unit. Φ3/8in (Φ9.52mm) Φ5/8in (Φ16 mm) Φ3/8in (Φ9.52mm) -
Page 12: Unit Overview
9. Take the unit out of the box. NOTE 10. Remove the foam from the unit. 11. Remove the packaging bag from the unit. Keep all packaging items in case they are needed for future use. 3.2 Installation Summary Select Install Location Attach Mounting Plate mrcool.com... - Page 13 UNIT OVERVIEW Determine wall hole placement Drill wall hole Prepare drain hose Wrap piping and drain hose mrcool.com...
- Page 14 UNIT OVERVIEW Connect Wiring Connect Piping Mount Indoor Unit mrcool.com...
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Page 15: Parts Overview
(Purchased Separately) Connection Cable (Purchased 3. Louver 10. Outdoor Unit Power Cable Separately) 4. Air Filter (Purchased Separately) Refrigerant Piping (Purchased Separately) Optional Tools (Not Included): Gloves Screwdriver Hammer Drill Core Drill Goggles & Vinyl Tape & Wrench Masks mrcool.com... -
Page 16: Features
SWING, TURBO, or SILENCE feature is turned off. • When defrosting. • When Active Clean feature is on. • When 46°F (8°C) heating feature is turned on. NOTE Illustrations in this manual are for explanatory purposes. The actual shape of your unit may slightly differ. mrcool.com... -
Page 17: Additional Features
When the unit is turned off, a 10 second delay occurs then the outdoor fan runs in reverse rotation for 70 seconds. This will blow off loose accumulated dust and debris. mrcool.com... -
Page 18: Setting Angle Of Airflow
To adjust, grip the deflector rod and set it to the preferred position. The horizontal angle of the airflow can also be set by remote control. (Refer to the Remote Control Manual for instructions.) Deflector Rod CAUTION DO NOT put your fingers in or near the blower and suction side of the unit. The high-speed fan inside the unit may cause injury. mrcool.com... -
Page 19: Manual Operation
ǿ Near a doorway. and outdoor units. The default position for all piping is ǿ In a location that is subject to direct sunlight. the right side of the indoor unit (when facing the unit). mrcool.com... -
Page 20: Connective Piping Wall Hole
Correct orientation of mounting plate Step 3: Double-check the type of mounting plate. Determine the location of the wall hole based on the position of the mounting plate. The dotted rectangular box on the figure shows the correct size for your product. mrcool.com... - Page 21 Drill the wall hole Step 2: Place the protective wall cuff in the hole. This protects the edges of the hole and helps seal after the installation process is finished. Place the protective wall cuff in the hole. mrcool.com...
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Page 22: Refrigerant Piping & Drain Hose Preparation
If existing connective piping is already embedded in the wall, proceed directly to the connect drain hose step. CAUTION Fig. 4.7a Be extremely careful not to dent or damage the piping while bending them away from the unit. Any dents in the piping will affect the unit's performance. mrcool.com... - Page 23 WARNING The minimum room area or minimum room area of conditioned space is based on releasable charge and total system refrigerant charge. mrcool.com...
- Page 24 Indoor Nominal Air Model Indoor Unit Outdoor Unit Volume 09K (115V) A-09-HP-WMAH-115D-O A-09-HP-C-115D-O 400m 235CFM A-09-HP-WMAH-230D-O A-09-HP-C-230D-O 450m 265CFM 12K (115V) A-12-HP-WMAH-115D-O A-12-HP-C-115D-O 525m 310CFM A-12-HP-WMAH-230D-O A-12-HP-C-230D-O 540m 320CFM A-18-HP-WMAH-230D-O A-18-HP-C-230D-O 660m 390CFM A-24-HP-WMAH-230D-O A-24-HP-C-230D-O 900m 530CFM A-36-HP-WMAH-230D-O A-36-HP-C-230D-O 1245m 730CFM mrcool.com...
- Page 25 Attach the drain hose extension (purchased separately) with the rubber plug provided. to the end of the drain hose. • Wrap the connection point firmly with Teflon tape to ensure a good seal and to prevent leaks. mrcool.com...
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Page 26: Electrical Work Preparation
Choose the correct 6. Pull the wires and check that the wires are securely cable size according to the Minimum Circuit Ampacity fixed to the terminal block. indicated on the nameplate of the unit. mrcool.com... -
Page 27: Wrap Piping & Wires
Step 3: Using insulation tape, wrap the refrigerant pipes and drain hose tightly together. Double-check that all items are bundled. Vinyl tape Wrap with insulation tape Space Behind (narrow) Pipe Unit Refrigerant Piping Drain Hose Drain Hose mrcool.com... -
Page 28: Mount Indoor Unit
When wrapping the bundle, keep the ends of the piping unwrapped. You need to access them to test for leaks at the end of the installation process (refer to the Electrical Checks and Leak Checks section of this manual). mrcool.com... - Page 29 Keep pressing the cross-shape part of the connector B • with a tool for about 5-10 seconds until the red protruding point of connector A retracts completely. Remove connectors A and B, then perform the refrigerant • piping connection between the indoor and outdoor unit. mrcool.com...
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Page 30: Outdoor Unit Installation
Use outdoor unit that is specially designed to resist corrosion. Shelter Wind Baffle Strong wind Strong wind Strong wind Build a wind Baffle to Build a shelter to protect 90° angle to the direction protect the unit the unit of the wind mrcool.com... -
Page 31: Drain Joint Installation
3. Connect a drain hose extension (sold separately) to the drain joint to redirect water from the unit during heating mode. NOTE: FOR COLDER CLIMATES In colder climates, make sure that the drain hose is as vertical as possible to ensure swift water drainage. If water drains too slowly, it can freeze inside the hose and flood the unit. mrcool.com... -
Page 32: Anchoring Of Unit
When drilling into concrete, EYE PROTECTION IS RECOMMENDED AT ALL TIMES. Make sure that the wall is made of solid brick, concrete or of similarly strong material. The wall must be able to support at least four times the weight of the unit. mrcool.com... -
Page 33: Signal & Power Cable Connection
7. Use lock nuts to secure the conduit tubes. How to Properly Connect the Wires: Step 1: Step 2: The treatment at the end of the wire. Connect the line to the corresponding terminals on the terminal block. mrcool.com... -
Page 34: 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 UNITS CAPACITY, AND CAN CAUSE ABNORMALLY HIGH PRESSURE IN THE REFRIGERATION CYCLE. THIS CAN CAUSE EXPLOSION AND INJURY. mrcool.com... - Page 35 Pipe Place flaring tool onto the form. Turn handle of the flaring tool clockwise until the pipe is fully flared. Remove the flaring tool and flare form, then inspect the end of the pipe for cracks and even flaring. mrcool.com...
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Page 36: Optional Pipe Connection Torque Requirements
Ø1/2in (Ø12.7mm) 49-59N.m (490-590kgf.cm) 0.64-0.65in (16.2-16.5mm) Ø5/8in (Ø16mm) 57-71N.m (570-710kgf.cm) 0.76-0.78in (19.2-19.7mm) DO NOT USE EXCESSIVE TORQUE Excessive force can break the nut or damage the refrigerant piping. You must not exceed torque requirements shown in the table above. mrcool.com... -
Page 37: Connecting Pipe To Outdoor Unit
Close the Low Pressure side of the manifold gauge, then turn off the vacuum pump. Wait for 5 minutes, then check that there has been no change in system pressure. 6. If there is a change in system pressure, refer to Gas Leak Check section for information on how to check for leaks. mrcool.com... - Page 38 OPEN VALVE STEMS GENTLY Make sure to open all valves after evacuation. When opening valve stems, turn the hexagonal wrench until it hits against the stopper. Do not try to force the valve to open further. mrcool.com...
- Page 39 > Standard Pipe Length Vacuum Pump x15g/m x30g/m (Pipe length-standard length) (Pipe length-standard length) x 0.16oz/ft x0.32oz/ft WARNING Do not mix refrigerant types. Make sure the additional amount of refrigerant to be charged is based on the pipe size and length. mrcool.com...
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Page 40: Electrical & Gas Leak Checks
NOT leak, replace the valve cover on the outside unit. If electrical leakage is detected, turn off the unit immediately and call a licensed electrician to find and resolve the cause of the leakage. Note: This may not be required for some locations in North America. mrcool.com... -
Page 41: Test Run
• All piping is properly insulated Unit properly performs COOL function Unit properly performs heat function Indoor louvers properly rotate Indoor unit responds to remote control Supporting Manual rod (located control on the left or button right, model dependent) mrcool.com... - Page 42 Finally, close the front panel of the unit. Step 3: If your filter has a smaller air freshening filter, unclip it from the larger filter. Clean this air freshening filter with a hand -held vacuum. mrcool.com...
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Page 43: Maintaining The Unit
Clean all filters. Clean all filters. until unit dries out wires. completely. Check for leaks. Replace batteries. Turn off the unit & Remove batteries disconnect the power. from remote control. Ensure nothing is blocking the air inlets & outlets. mrcool.com... -
Page 44: Post Installation
This noise is normal and is caused by the make noises refrigerant gas stopping or changing direction. Squeaking sound: Normal expansion and contraction of plastic and metal parts caused by temperature changes during operation can cause squeaking noises. mrcool.com... - Page 45 Disconnect the power, then reconnect. • Press ON/OFF button on remote control to restart operation. Note: If problem persists, contact a local dealer or MRCOOL® customer service. Provide them with a detailed description of the unit malfunction as well as your model number. CAUTION...
- Page 46 10 minutes. The problem may resolve of the indoor unit: itself. If not, disconnect the power, then connect it again, then, turn on the unit. If the problem persists, disconnect the power and contact MRCOOL® customer service. E(x), P(x), F(x) EH(xx),EL(xx), EC(xx)
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Page 47: Error Display (Indoor Unit)
TS05-N10 EH Cl Refrigerant sensor detects leakage TS06-N10 EH C2 Refrigerant sensor is out of range and leakage is detected TS06-N10 EH C3 Refrigerant sensor is out of range TS05-N10 EC Cl Other IDU refrigerant sensor detects leakage TS06-N10 mrcool.com... - Page 48 Ensure that this not respond to the remote, the indoor PCB requires code is not a temperature reading. replacement. If the unit responds, the display board requires replacement. 88 flash frequency: 1.2s 0.4s 0.4s 0.4s 1.2s 0.4s mrcool.com...
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Page 49: Error Display (Outdoor Unit With Auxiliary Board)
ODU ambient temp. sensor (T3) error TS05-ODU EC 54 COMP. discharge temp. sensor (TP) error TS05-ODU EC 50 Open or short circuit of outdoor unit temperature sensor (T3, T4, TP) TS05-ODU PC 0L Low ambient temperature protection (for some models) mrcool.com... -
Page 50: Quick Maintenance By Error Code
Outdoor Fan Motor √ √ √ √ T3 Sensor √ T4 Sensor √ TP Sensor √ Reactor √ Compressor √ √ √ √ √ √ IPM Module Board √ High Pressure Protector √ Low Pressure Protector √ Additional Refrigerant mrcool.com... - Page 51 √ √ √ √ Outdoor PCB √ Outdoor Fan Motor T3 Sensor TP Sensor Pressure Sensor Reactor √ Compressor √ √ IPM Module Board High Pressure Valve Assembly High Pressure Protector √ Low Pressure Protector √ √ Additional Refrigerant mrcool.com...
- Page 52 Advantage Series Installation & Owner’s Manual 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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