Summary of Contents for MrCool VersaPro MVP-HP-C-230A00-O Series
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Due to updates and constantly improving performance, the information and instructions within this manual are subject to change without notice. Version Date: March 10, 2025 Please visit www.mrcool.com/documentation to ensure you have the latest version of this manual. mrcool.com...
4.4 Quick Maintenance by Error Code ..............50 4.5 Troubleshooting by Error Code ............... 52 TEMPERATURE SENSOR RESISTANCE TABLE ............... 81 5.1 Temperature Sensor Resistance Value Table for TP (°C-K) ......81 SYSTEM PRESSURE TABLE....................83 6.1 System Pressure Table-R545B................83 mrcool.com...
Reference acoustic pressure OdB=20µPa. • Sound level will vary depending on arrange off factors such as the construction (acoustic absorption coefficient) of particular rooms in which the equipment is installed. • The operating conditions are assumed to be standard. MVP-18-HP-C-230A00-0 MVP-30-HP-C-230A00-0 mrcool.com...
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SYSTEM OVERVIEW CENTRAL-30-HP-C-230B00-O CENTRAL-36-HP-C-230B00-O MVP-36-HP-C-230A00-O MVP-48-HP-C-230A00-O mrcool.com...
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SYSTEM OVERVIEW CENTRAL-48-HP-C-230B00-O CENTRAL-60-HP-C-230B00-O MVP-60-HP-C-230A00-O mrcool.com...
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SYSTEM OVERVIEW Outdoor unit wiring diagram: 16022000040910 mrcool.com...
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SYSTEM OVERVIEW Outdoor unit wiring diagram: 16022000040710 mrcool.com...
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SYSTEM OVERVIEW Outdoor unit wiring diagram: 16022000040690 mrcool.com...
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SYSTEM OVERVIEW Outdoor unit wiring diagram: 16022000041438 mrcool.com...
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SYSTEM OVERVIEW Outdoor unit wiring diagram: 16022000041477 mrcool.com...
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SYSTEM OVERVIEW Outdoor unit wiring diagram: 16022000041440 mrcool.com...
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SYSTEM OVERVIEW Outdoor unit printed circuit board diagram: 17122000057661 mrcool.com...
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Connect to chassis heater(Output: 230VAC) S: connect to indoor unit communication L_in: connect to L-line (230VAC input) CN1A N_in: connect to N-line (230VAC input) Earth CN50 Connect to compressor (Output: 0~310VAC) Note: This section is for reference only. Please take practicality as standard. mrcool.com...
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SYSTEM OVERVIEW Outdoor unit printed circuit board diagram: 17122000048064 & 17122000048066 mrcool.com...
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Used for testing FAN_IPM IPM501 IPM for DC fan COMP_IPM IPM1 IPM for compressor CN27 CN28 Connect to compressor (Output: 0~310VAC) CN29 EE_PORT CN505 EEPROM programmer port Note: This section is for reference only. Please take practicality as standard. mrcool.com...
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SYSTEM OVERVIEW Outdoor unit printed circuit board diagram: 17122300007152 mrcool.com...
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Connect to key board CN1 Connect to condenser coil temp. sensor T3, ambient T3 T4 TP CN26 temp. sensor T4, exhaust temp. sensor TP (Output: 0~5VDC) Connect to high and low pressure switch (pin1-pin2 & H-PRO, L-PRO CN29 pin3-pin4: 5VDC pulse wave) mrcool.com...
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Connect to electric expansion valve (Output: 0~12VDC) EEVF EEV1 EEV2 CN44 EEV3 H_YL CN49 Connect to high pressure sensor DC-FAN2 CN10 Connect to DC fan (Output: 0~310VAC) Note: This section is for reference only. Please take practicality as standard. mrcool.com...
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Connect to CELLULAR (Output: 0~5VDC) S1+S2 Connect to indoor unit communication (Output: 0~5VDC) CN14 Connect to main board S (Input: 230VAC) CN17 Connect to main board L1-IN (Input: 230VAC) Power Supply CN15 Connect to main board L2/N-IN (Input: 230VAC) mrcool.com...
If the unit is frequently exposed to salty air (seaside): 9.8in (25cm) or L ≤ 1/2H • Use an outdoor unit that is specially designed more L ≤ H to resist corrosion. 11.8in (30cm) 1/2H < L ≤ H or more L>H Cannot be installed mrcool.com...
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 the dimensions below. The following is a list of different outdoor unit sizes and the distance between their mounting feet. mrcool.com...
2. Confirm the cross way of the pipes. proper torque to fasten the nut, too much torque will damage the bell mouthing, and too little of torque may cause leakage. Refer to the following table for different pipe connections. mrcool.com...
-755mmHg stop vacuum drying and keep the pressure for 1 hour. If the indicator of the vacuum gauge does not go up it is good. If it does go up it indicates that there is moisture or a leak. mrcool.com...
2. Purpose of Refrigerant Pipe Insulation: • During operation the temperature of the gas pipe and liquid pipe will be very hot/cold. Therefore insulation is necessary as without it will decrease performance and can cause the compressor to burnout. mrcool.com...
4. Clamp down the cable with the cable clamp. 5. Insulate unused wires with electrical tape. (Keep wires away from any electrical metal or parts). 6. Re-install the cover of the electrical panel. mrcool.com...
Check to see if the refrigeration system is leaking., • Make sure there is no vibration or abnormal noise during operation. • Ensure the wind, noise, and water generated by the unit do not disturb your neighbors or pose a safety hazard. mrcool.com...
When fan mode is activated: • The outdoor fan and compressor are stopped. Cooling Mode: Compressor Control: Reach the configured temperature 1. When the compressor runs continuously for within 120 minutes. • If the following conditions are satisfied, the compressor ceases operation. mrcool.com...
• Unit runs for 15 minutes consecutively in defrosting mode. • If Outdoor ambient temperature (T4) is lower than or equal to -7.6°F (-22°C) and compressor running time is more than TIMING_DEFROST_ TIME. If any one of the following conditions mrcool.com...
Electricity will remain in capacitors even when the power supply is off. Ensure the capacitors are fully discharged before troubleshooting Note: If using the inverter test tool for maintenance, remove the big handle from the unit and connect the inverter test tool to TESTPORT(CN7). Note: This picture is for reference only. Actual appearance may vary. mrcool.com...
PC 46 Compressor Speed has Been Out of Control TS15 PC 49 Compressor Overcurrent Failure TS15 LC 06 High Temperature Protection of Evaporator TS34 PH 90 High Temperature Protection of Evaporator TS34 PH 91 Low Temperature Protection of Evaporator TS35 mrcool.com...
If the value is higher than 99, light the decimal point of the high EXV open angle digit tube. For example, the digital display tube show "2.0", so 2.0 multiplied by 10 to become 20, then added to 100 to become 120, it means the EXV open angle is 120x4=480p. mrcool.com...
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AD value detected by the high For example, the digital display tube shows "Cd", so and low pressure sensor C*16¹+d*16⁰=12*16+13=205, it meads AD value is 205. When there is no pressure sensor, it is displayed as --. The currently running communication protocol 00-99 version mrcool.com...
EEPROM: A read-only memory whose contents can be erased and reprogrammed using a puled voltage. The location of the EEPROM chip on the indoor PCB is shown in the following image: Note: These pictures are for reference, actual appearance may vary. mrcool.com...
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TROUBLESHOOTING EL 01: IDU & ODU communication error diagnosis and solution Recommended parts to prepare: • Indoor PCB • Outdoor PCB • Signal wires • Magnet ring Troubleshooting and repair: mrcool.com...
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Description: When indoor/outdoor fan speed keeps too low or too high for a certain time, the LED displays the failure code and the AC turns off. Recommended parts to prepare: • Connection wires • Fan assembly • Fan motor • PCB Troubleshooting and repair: mrcool.com...
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Release the UVW connector and measure the resistance of U-V, U-W, V-W. If the resistance is not equal to each other the fan motor has a problem and needs to be replaced. Otherwise the PCB has a problem and needs to be replaced. mrcool.com...
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Description: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure code. Recommended parts to prepare: • Connection wires • Outdoor PCB • Sensors Troubleshooting and repair: Note: The picture and the value are for reference only, actual appearance and values may vary. mrcool.com...
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Description: An abnormal current rise is detected by checking the specified current detection circuit. Recommended parts to prepare: • Outdoor PCB • Connection wires • Bridge rectifier • PFC circuit or reactor • Refrigeration piping system • Pressure switch • Outdoor fan • IPM module board Troubleshooting and repair: mrcool.com...
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Troubleshooting and repair: At first test the resistance between every two ports of U, V, W, of IPM and P,N. If any result of them is 0 or close to 0, the IPM is defective. Otherwise please follow the procedure below: mrcool.com...
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Description: Abnormal increases or decreases in voltage are detected by checking the specified voltage detection circuit. Recommended parts to prepare: • Power supply wires • IPM module board • Outdoor PCB • Bridge rectifier • PFC circuit or reactor Troubleshooting and repair: mrcool.com...
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PC 40: Communication error between ODU main chip and compressor driven chip diagnosis and solution Description: The main PCB cannot detect the IPM board. Recommended parts to prepare: • Connection wires • Outdoor PCB • IPM module board • Electric control box Troubleshooting and repair: mrcool.com...
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Description: Outdoor PCB detects PFC signal is low voltage or DC voltage is lower than 340V for 6s when quick check. Recommended parts to prepare: • Connection wires • Outdoor PCB • Inductance • PFC circuit or IPM module board Troubleshooting and repair: mrcool.com...
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Description: When the compressor discharge temperature (TP) is more than 115°C for 10 seconds, the compressor ceases operation and does not restart until TP is less than 90°C.. Recommended parts to prepare: • Connection wires • Outdoor PCB • Discharge temperature sensor • Refrigerant Troubleshooting and repair: mrcool.com...
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Description: The unit will stop when condenser temperature is higher than 65°C, and runs again when it is less than 50°C. Recommended parts to prepare: • Connection wires • Condenser temperature sensor • Outdoor fan • Outdoor main PCB • Refrigerant Troubleshooting and repair: mrcool.com...
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Models without overload protector should be diagnosed according to the second flowchart. Recommended parts to prepare: • Connection wires • Outdoor PCB • IPM module board • High pressure protector • System blockages Troubleshooting and repair: mrcool.com...
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PC 30: System high pressure protection diagnosis and solution Description: Outdoor pressure switch cuts off the system because pressure is higher than 638PSI (4.4MPa). Recommended parts to prepare: • Connection wires • Pressure switch • Outdoor fan • Outdoor main PCB Troubleshooting and repair: mrcool.com...
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Description: Outdoor pressure switch cut off the system because low pressure is lower than 18.85PSI (0.13MPa), the LED displays the failure code. Recommended parts to prepare: • Connection wires • Outdoor PCB • Low pressure protector • Refrigerant Troubleshooting and repair: mrcool.com...
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Description: When the three-phase sampling current of the compressor is abnormal, especially when the current of one or more phases is always small and almost 0, the LED displays the failure code. Recommended parts to prepare: • Connection wires • Compressor • Outdoor PCB Troubleshooting and repair: mrcool.com...
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• Inverter module PCB Troubleshooting and repair: PC 41: Outdoor compressor current sampling circuit failure diagnosis and solution Description: Three-phase sampling offset voltage error, the static bias voltage is normally 2.5V. Recommended parts to prepare: • Outdoor main PCB Troubleshooting and repair: mrcool.com...
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• IPM module PCB • Connection wires • Sensors • Outdoor main PCB Troubleshooting and repair: If the radiator has no sensor, follow the steps below to resolve. If the radiator has a sensor (TH), follow the steps below. mrcool.com...
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Description: When evaporator coil temperature is more than 60°C in heating mode, the unit stops. It starts again only when the evaporator coil temperature is less than 52°C. Recommended parts to prepare: • Connection wires • Evaporator coil temperature sensor (T2) • Indoor fan • Indoor main PCB Troubleshooting and repair: mrcool.com...
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EC 5C: High pressure sensor is in open circuit or has short circuited diagnosis and solution Description: If the sampling voltage is lower than 2V or higher than 254V, the LED displays the failure code. Recommended parts to prepare: • Connection wires • Sensor • Outdoor PCB Troubleshooting and repair: mrcool.com...
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EL 16: Communication malfunction between adapter board and outdoor main board diagnosis and solution Description: The adapter PCB cannot detect the main control board. Recommended parts to prepare: • Connection wires • Adapter board • Outdoor main PCB Troubleshooting and repair: mrcool.com...
Note: The picture and the value are for reference only, actual condition and specific values may vary. Compressor Check: 1. Disconnect the compressor power cord from the outdoor PCB. 2. Measure the resistance value of each winding using a multi-meter. 3. Check the resistance value of each winding in the following table. mrcool.com...
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Resistance Value KTN150D30UFZA KTM240D46UKT2 KTF310D43UMT MTH356UKRC8FQL KTQ420D1UMU EKPQ440D1UMUB Blue-Red Blue-Black 1.02Ω 1.04Ω 0.65Ω 0.37Ω 0.487Ω Red-Black Resistance Value MTH550UKPC8FU Blue-Red Blue-Black 0.295Ω Red-Black Note: The picture and the value are for reference only, actual condition and specific values may vary. mrcool.com...
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∞ ∞ (Several Ω) (Several Ω) Or Test the Conductivity of IPM with Diode Mode: Needle-type Tester Needle-Type Tester Normal Value Normal Value Black Black Open-Circuit 0.3-0.5V Needle-type Tester Needle-Type Tester Normal Value Normal Value Black Black 0.3-0.5V Open-Circuit mrcool.com...
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With partial active PFC module With fully active PFC module >200VDC >310VDC >370VDC Reactor Check: Measure the resistance and voltage (to ground) of the reactor. The normal resistance should be around 0.1 ohm. Otherwise the reactor has an issue. mrcool.com...
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1. Turn off outdoor unit and disconnect the power supply 2. Disconnect the connectors of EXV. 3. Measure the resistance value between Red and Blue(Yellow); Brown and Orange(White). Resistance to EXV coil: Color of Lead Winding Normal Value Red-Blue Red-Yellow About 50Ω Brown-Orange Brown-White mrcool.com...
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VersaPro & Hyper Heat ® Central Ducted 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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