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DC Inverter
Package Unit
Installation &
Owner's Manual
MODELS:
MDPH180604
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: 10/30/2023
Please visit www.mrcool.com/documentation
to ensure you have the latest version of this manual.
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Table of Contents
Troubleshooting
Related Manuals for MrCool MDPH180604
Summary of Contents for MrCool MDPH180604
- Page 1 Due to updates and constantly improving performance, the information and instructions within this manual are subject to change without notice. Version Date: 10/30/2023 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
To return your used device, please use the return and collection systems or contact the retailer where the product was purchased. They can take this product for environmental safe recycling. mrcool.com... -
Page 3: Safety
Children should be supervised to ensure that they do not play with the appliance. mrcool.com... - Page 4 9. Consult local building codes and National Electrical Code (NEC) for special requirements. 10. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. mrcool.com...
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Page 5: Unit Overview & Features
The manufacturer assumes no responsibilities for equipment installed in violation of any codes or regulations. 2.4 Included Accessories Name Appearance Qty. Usage Wired Controller Temperature Control of the Unit mrcool.com... -
Page 6: Physical Dimensions
28 in. 9 in. 3-3/4 in. 6-1/2 in. 11-7/8 in. 15-3/8 in. 4 in. 199 mm. 711 mm. 228 mm. 96 mm. 166 mm. 300 mm. 390 mm. 103 mm. Note: Above diagrams may be different from the actual model. mrcool.com... -
Page 7: Main Parts
4. The installation location should be able to withstand the weight and vibration of the air conditioner and allow the installation to be carried out safely. 5. Avoid installing at a place with leakage of flammable gas, oil smoke or corrosive gas. mrcool.com... -
Page 8: Installation Location Dimensions & Clearances
For best performance of the unit, ensure its installation space meets the following installation dimensions. Installation Clearances Dimensions inch (Minimum) 1524 Note: Refer to local code requirements for additional clearance requirements. Fig. 3.2 Note: Above diagram may be different from actual model. mrcool.com... -
Page 9: Unit Installation
UNIT INSTALLATION 4.1 Curb-Mounted Installation 1. Install curb. (Note: MRCOOL does not supply roof curb. Refer to the following figure for roof curb reference dimensions.) Prior to fabrication, confirm the reference dimensions meet the needs of the application. Unit: in (mm) Fig. -
Page 10: Pad-Mounted Installation
1. Spreader bars are required in order to prevent rigging straps from damaging the unit. 2. All panels must be in place when rigging. 3. The height between the top of the unit and the rigging cables’ connection point should be 36-54 inches (914-1371mm) mrcool.com... -
Page 11: Horizontal Duct & Vertical Duct Conversion
To convert to a horizontal duct configuration, remove the screws from the side duct opening covers (see • Figure 4.4) and remove the covers. To convert to a vertical duct configuration, remove the screws from the basepan duct opening covers (see • Figure 4.5) and remove the covers. Fig. 4.4 Fig. 4.5 mrcool.com... -
Page 12: Installation Of Condensation Pipe
Condensate Fig. 4.6 Model Drain Connection Size (inch/mm) MDPH180604 3/4 in / 19.05 mm (NPT) 4.6 Dip Switch Instruction The unit can be connected to a wired controller or a thermostat, but only one can be connected. When the dip switch, SA1, is 0000, the operation command of the wired controller is valid for the unit. -
Page 13: Fan Speed Adjustment Guidance
The relationship between combinations and speeds are as follows: Dip Switch SA1 Level Speed 4 Speed 5 Speed 6 Speed 7 Speed 8 Speed 9 Speed 10 Speed 11 Speed 12 Speed 13 NOTE: 0 means dip switch to ‘on’, 1 means dip switch equals number. mrcool.com... -
Page 14: Fan Performance Data
4.8 Fan Performance Data External static pressure should stay within the minimum and maximum limits shown in the table below in order to ensure proper operation of both cooling, heating, and electric heating operation. MDPH180604 Model Static Pressure: Inches W.C. (Pa) -
Page 15: Electric Heater
4. Installation must follow national electric code and other applicable codes. 5. If the unit is installed in an enclosed area such as a garage or utility room with a carbon-monoxide producing appliance, ensure the area is properly ventilated. mrcool.com... -
Page 16: Heat Kit Installation Steps
The power cord must pass The reserve line through this hole. and the electric heating line must be connected here. must The power cord must pass through The reserve line the holes. must pass through this hole. Fig. 6.3 mrcool.com... -
Page 17: Electrical Installation
7.1 Electrical Parameters Unit Model Power Supply Fuse Capacity (A) Max. Over-Current Prot. (A) Min. Circuit Amp. (A) MDPH180604 208/230V-1Ph-60Hz 39.1 WARNING The electrical installation for the unit should observe the following requirements: 1. The electrical installation must be conducted by professionals in compliance with local laws, regulations, and the instructions in this manual. -
Page 18: Wiring Diagram
2. The unit can only be connected to a thermostat or W1 means heater control signal wired controller. R means 24V AC power supply C means 24V common G means indoor side fan signal Without Electric Heater Fig. 7.4 mrcool.com... - Page 19 ELECTRICAL INSTALLATION With Electric Heater Fig. 7.5 Fig. 7.6 mrcool.com...
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Page 20: Engineering Wiring Diagram
There is a risk of electrical leakage. Do the specifications of wires comply with the The unit may fail or its components burn. requirements? Are there any obstacles blocking the air inlet and Cooling capacity may become unsatisfactory. outlet of the units? mrcool.com... -
Page 21: Troubleshooting
NOTE: If after performing the check of items above and taking measures to resolve the problems, but the unit is still performing poorly, stop operation of the unit immediately and contact the MRCOOL® Technical Department at (270) 366-0457. Only ask professional servicemen to check and repair the unit. - Page 22 Subcooler gas outlet temperature sensor error Subcooler liquid outlet temperature sensor error Jumper failure (ODU) Jumper failure (IDU) Inlet pipe temperature sensor of evaporator error Outlet pipe temperature sensor of evaporator error Dip switch settings error DRED1 mode DRED2 mode mrcool.com...
- Page 23 Discharge temperature sensor error Temperature sensor error of wired controller Mid-temperature sensor error of wired controller Compressor overload protection Overloading IPM protection DC fan motor error Drive desynchronizing protection PFC Protection Activation failure Compressor phase sequence protection Compressor stalling protection mrcool.com...
- Page 24 Charge loop error Fan AC contractor protection or input zero crossing error Intelligent converter settings error Fan current protection Fan power protection NOTE: If several errors happen at the same time, error codes will show on the display repeatedly. mrcool.com...
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Page 25: Cleaning The Air Filter
If the unit starts up after operating for a long time, it should be powered on for 8 hours before operation in • order to preheat the outdoor compressor. Check whether the outdoor unit is securely installed. If there is any problem, contact the MRCOOL® Technical • Department at (270) 366-0457. - Page 26 DC Inverter Rooftop Packaged Unit 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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