Introduction
The Mountman 41 Inch Evaporative Air Cooler is designed to provide powerful and efficient cooling for large spaces up to 970 square feet. Utilizing an upgraded copper motor, it delivers an impressive 4800 CFM air volume with a 120° wide oscillation. This swamp cooler offers a cost-effective and energy-saving alternative to traditional air conditioners, ideal for commercial, outdoor, garage, patio, porch, and factory environments. It features a large 10.6-gallon water tank, includes 3 ice packs for enhanced cooling, and offers convenient water refilling options.

Figure 1: Mountman 41 Inch Evaporative Air Cooler in use, highlighting its cooling effect and large water tank capacity.
Safety Instructions
Please read all safety instructions carefully before operating the appliance. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always ensure the unit is placed on a stable, level surface to prevent tipping and water spillage.
- Do not operate the cooler with a damaged cord or plug. If the cord is damaged, it must be replaced by the manufacturer or a qualified service agent.
- Unplug the unit from the power outlet before cleaning, performing maintenance, or when not in use.
- Do not immerse the unit, cord, or plug in water or other liquids.
- Keep children and pets away from the unit during operation.
- Do not block the air inlets or outlets. Ensure adequate clearance around the unit for proper airflow.
- Use only clean water in the water tank. Do not add any chemicals or additives to the water.
- Avoid placing the unit near heat sources or in direct sunlight for prolonged periods.
- This appliance is intended for household and similar applications.
Package Contents
Verify that all items are present in the package:
- Swamp Cooler (1 unit)
- Ice Packs (3 units)
- Universal Wheels (4 units)
- Instruction Manual (1 unit)
Setup
Follow these steps to set up your Mountman Evaporative Air Cooler:
- Attach Universal Wheels: Carefully tilt the unit and attach the four universal wheels to the designated slots at the bottom. Two of the wheels are equipped with brakes for stability. Ensure they are securely fastened.
- Install Cooling Pads: The unit comes with 3 upgraded evaporative cooling pads. Ensure they are properly seated within their compartments.
- Prepare Ice Packs: For enhanced cooling, place the included ice packs in a freezer until completely frozen.
- Fill Water Tank: The unit features a 10.6-gallon water tank. You can fill it manually from the top by removing the cover, or use the automatic continuous fill feature with a garden hose. The practical Low-Max water level line helps monitor the water level.

Figure 2: Illustration of the 3-side honeycomb cooling pads within the unit.

Figure 3: Placing ice packs into the top compartment of the cooler.

Figure 4: Garden hose connector for automatic water filling.

Figure 5: The 10.6-gallon water tank with automatic fill capability.
Operating Instructions
Your Mountman Evaporative Air Cooler is designed for simple and effective operation.
Control Panel
The unit features a user-friendly control panel with mechanical buttons for various functions:

Figure 6: The control panel with clearly labeled buttons.
- Power Button: Turns the unit ON/OFF.
- Fan Speed Buttons (High, Medium, Low): Select your desired airflow intensity.
- Stop Button: Stops the fan operation.
- Cooling Button: Activates or deactivates the evaporative cooling function.
- Swing Button: Activates or deactivates the 120° oscillation feature, distributing cool air across a wider area.
Airflow and Oscillation
The cooler provides powerful airflow and wide oscillation for optimal comfort.

Figure 7: Visual representation of the 4800 CFM airflow.
The 120° wide oscillation ensures that cool air is distributed evenly throughout your space. You can also manually adjust the direction of the front louvers to direct airflow as needed.
Video 1: Official product video showcasing the cooling capabilities, water filling, controls, and portability of the Mountman Evaporative Air Cooler.
Maintenance
Regular maintenance ensures optimal performance and longevity of your evaporative air cooler.
Cleaning the Water Tank
To prevent mold and maintain hygiene, it is recommended to clean the water tank regularly. The unit features a drainage port at the bottom for easy water removal.

Figure 8: The drainage port for convenient water removal.
- Unplug the unit from the power outlet.
- Locate the drainage port at the bottom of the unit.
- Open the drainage plug to empty the water tank.
- Clean the tank with a soft cloth and mild detergent, then rinse thoroughly.
- Close the drainage plug securely before refilling.
Cleaning Cooling Pads
The evaporative cooling pads should be cleaned periodically to ensure efficient cooling.
- Unplug the unit.
- Carefully remove the cooling pads from their compartments.
- Rinse the pads under running water to remove dust and mineral deposits. For stubborn buildup, a soft brush can be used.
- Allow the pads to air dry completely before reinserting them into the unit.
Troubleshooting
If you encounter issues with your evaporative air cooler, refer to the table below for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not turn on | No power supply; Power button not pressed; Fuse blown. | Check power cord connection; Ensure outlet is functional; Press Power button; Check household fuse/circuit breaker. |
| Weak airflow | Fan speed set too low; Air inlets/outlets blocked; Dirty cooling pads. | Increase fan speed; Clear any obstructions; Clean cooling pads. |
| No cooling effect | Water tank empty; Cooling function not activated; Ice packs not frozen/used. | Refill water tank; Press Cooling button; Ensure ice packs are frozen and placed in the unit. |
| Unpleasant odor | Stagnant water in tank; Dirty cooling pads. | Drain and clean water tank; Clean cooling pads. Use fresh water. |
| Water leakage | Water tank overfilled; Drainage plug not secured; Unit not level. | Do not exceed MAX water level; Ensure drainage plug is tightly closed; Place unit on a level surface. |
If the problem persists after attempting these solutions, please contact customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Mountman |
| Model Name | Mountman (41 Inch Evaporative Air Cooler) |
| Mounting Type | Freestanding |
| Color | Navy Blue |
| Air Flow Capacity | 4800 Cubic Feet Per Minute (CFM) |
| Controls Type | Button |
| Reservoir Capacity | 10.6 Gallons |
| Floor Area (Max) | 970 Square Feet |
| Product Dimensions | 24"D x 17"W x 41"H |
| Item Weight | 40 pounds |
| Voltage | 120 Volts |
| Amperage | 2 Amps |
| Noise Level | 55 dB |
| Special Features | 3 Ice Packs, 3 Speeds, 120° Wide-Swing, Manual & Auto Continuous Fill |
Warranty and Support
Mountman products are manufactured with high-quality standards and are backed by a manufacturer's warranty. For specific warranty details, please refer to the warranty card included with your purchase or visit the official Mountman website.
If you require technical assistance, have questions about your product, or need to report an issue, please contact Mountman customer support. Our dedicated team is available to assist you.
Contact Information:
Please refer to the contact details provided on the product packaging or the official Mountman website for the most up-to-date support information.