To Next PageTo Next PageHow to fix a MrCool Air Handler that won't turn on?
If your MrCool Air Handler won't turn on, the first thing to check is whether it's properly connected to a power supply; make sure it is securely connected. Also, verify that the circuit voltage is within the rated scope to rule out low voltage issues. Lastly, inspect the fuse and circuit breaker; replace the fuse or reconnect the breaker if necessary.
Why is my MrCool Air Handler not cooling or heating properly?
If your MrCool Air Handler isn't providing adequate cooling or heating, several factors could be at play. Start by ensuring that the air inlet and outlet aren't blocked by any obstructions; clear them to ensure proper airflow. Next, check your thermostat settings to make sure they're appropriately adjusted for your desired temperature. Also, make sure that doors and windows are closed, and draw any curtains or louvers to block direct sunlight. Reduce any excessive heat sources within the room. Finally, a dirty filter screen can restrict airflow, so be sure to clean the filter.
General| Model | MDUI180 |
|---|---|
| Series | E Series |
| Category | Air Handlers |
| Cooling Capacity | 18, 000 BTU/h |
| Refrigerant | R-410A |
| Airflow | 800 CFM |
| Voltage | 208/230V |
| Phase | 1 |
| Hertz | 60 Hz |
| Maximum Current | 15 A |
| Heating Capacity | 19, 000 BTU/h |
| HSPF Rating | 10 |
| Operating Temperature (Cooling) | Varies with outdoor unit |
| Operating Temperature (Heating) | 5°F to 75°F |
| Dimensions (Outdoor Unit) | Varies with outdoor unit |
| Line Set Length | 25 feet |
| Warranty | 5 Year Parts Limited Warranty, 7 Year Compressor Limited Warranty |
Important instructions and warnings to be read before installing the unit.
Explanation of warning and caution symbols and their meanings.
Key safety directives for installation, operation, and maintenance.
Guidelines related to refrigerants, environmental protection, and disposal.
Important cautions regarding unit placement, usage, and electrical safety.
Welcome message and introduction to the MRCOOL Universal Series Air Handler.
Guidelines for safe and proper use of the appliance by different age groups.
Contact information for technical assistance and details to provide for troubleshooting.
List of standard and optional accessories provided with the air handler.
Detailed dimensions and capacity specifications for different models.
Identification of key internal parts of the air handler unit.
Introduction to the installation process and the two available line set connection methods.
Steps to take before starting installation, including checking product and understanding codes.
Guidelines for selecting an appropriate and safe installation location for the unit.
Detailed instructions for installing the line set using conventional welding methods.
Procedures for adding oil return bends to the refrigerant piping system.
Step-by-step guide for installing the pre-charged line set using quick connect fittings.
Instructions for properly installing the condensate drain pipe and trap.
Guidelines for installing supply and return ductwork for optimal performance.
Instructions for installing the optional electric heat kit, including compatibility and wiring.
Procedures for converting the unit's capacity settings via dip switches.
Settings for adjusting indoor fan speed using dip switches for different models.
Tables and charts showing airflow volumes at various static pressures and fan speeds.
Essential electrical safety rules and compliance requirements for installation.
Table detailing power supply, ampacity, and overcurrent protection for unit models.
Instructions for safely connecting power cords and communication wires.
Electrical wiring diagrams for various configurations, including heat pump and electric heat kits.
Essential safety and system checks to perform before powering on the unit.
Steps for conducting the initial test run and verifying normal operation.
Table outlining common issues, their causes, and corrective measures.
Explanation of normal operating conditions that might be mistaken for failures and LED indicator meanings.
Critical warnings against attempting self-repairs and advice to contact support.
Regular checks to ensure proper drainage of condensate.
Steps for maintenance before and after seasonal use to ensure longevity.
Information on obtaining replacement parts and contacting support for inquiries.
Guidelines for the proper and environmentally responsible disposal of the appliance.
Warning about the environmental impact of improper disposal.
