QuietCool QC18DVS - User Manual

Questions and Answers

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David SandovalAug 1, 2025
What to do if I found water on the floor after overnight shut off of QuietCool QC18DVS Air Conditioner?
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  woodsheatherAug 1, 2025
  If you find water on the floor after an overnight shut off of your QuietCool Air Conditioner, it could be due to excessive water pressure or a float valve stuck in the open position. First, check your water pressure, ensuring it doesn't exceed 60 p.s.i.; if it does, install a water pressure regulator. Also, drain the cooler's sump and refill it to remove any contaminants. If the float remains stuck, remove the pads and inspect the float for debris or damage, then clean or replace the float as needed.
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Brandon HendrixAug 7, 2025
Why is no water running over the pads of my QuietCool QC18DVS Air Conditioner?
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  sextoncherylAug 7, 2025
  If no water is running over the pads in your QuietCool Air Conditioner, first ensure the main water supply valve is open. It is recommended to keep this valve open at all times. Next, check that the pump switch is turned on. Lastly, the water filter may be clogged. To resolve this, remove the cooling pads, open the back of the unit, access the water filter, pull out the filter screen, and clean it before replacing it.
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mendozasarahAug 13, 2025
How to fix water on the floor around QuietCool QC18DVS?
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  Cesar ShawAug 13, 2025
  If you notice water on the floor around your QuietCool Air Conditioner, either at the front or back, it could be due to several reasons. It may be caused by damage to the polyethylene housing, indicated by cracks, or by excess water at the top or bottom of the pads. Leaks may also occur from the bottom of the pads. To address this, repair any housing damage. Gently adjust the pads with your fingertips and search for and repair any leaks. If water is leaking from the bottom of the pads, gently push the bottom of the cooling pads inside to stop the leaking.
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Michael GutierrezAug 18, 2025
Why is there scale build-up on the cooling pads of my QuietCool QC18DVS Air Conditioner?
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  Emily TylerAug 18, 2025
  Scale build-up on the cooling pads of your QuietCool Air Conditioner is typically due to hard water with excessive mineral content. To mitigate this, use an Evapo-O-Matic Tablet or add a Water Stabilizer at the discharge side of the pump. Additionally, flush the water from the unit’s water reservoir more frequently.
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Jordan SmithAug 25, 2025
Why does my new QuietCool QC18DVS Air Conditioner smell bad?
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  jessica85Aug 25, 2025
  A foul odor from a new QuietCool Air Conditioner is normal and temporary, likely caused by the thermosetting resin in the new pad. The smell will dissipate over time. To expedite this, drain and refill the unit several times during the first week to remove the resin smell. You can also add an Evap-O-Matic Tablet to reduce the odor and prevent algae growth.

Summary

Warnings and Cautions

Electrical Safety Precautions

Essential electrical safety precautions for operating the QuietCool unit, including cord usage and grounding.

Water Pressure and Supply Warnings

Instructions on water supply connection and maximum pressure limits to prevent unit damage.

Introduction to QuietCool

Quick Start and Water Treatment

Initial steps for unit operation and the use of Evap-O-Matic chemical water treatment tablets.

How Evaporative Cooling Works

Explanation of the cooling process, how it lowers temperature by evaporating water.

Unit Setup Procedures

Unpacking and Caster Attachment

Guidance on unpacking the unit, attaching casters, and preparing for operation.

Connecting Electrical Supply

Instructions for connecting the unit to a suitable power source, including voltage and amperage requirements.

Operating Procedures

Connecting Water Supply

Steps for connecting the water hose and managing water pressure for the unit.

Filling Reservoir and Pump Operation

Instructions for filling the water reservoir, operating the pump, and priming the cooling pads.

Fan Operation

Guidance on operating the fan after the cooling pads are saturated for optimal cooling.

Daily Operations and Maintenance

Daily Operating Sequence

Procedures for daily start-up, operation, and shutdown of the unit to ensure efficiency and pad drying.

Accessing Unit Internals and Pads

Instructions on how to safely access the unit's interior and remove cooling pads for cleaning.

Maintenance and Troubleshooting

Periodic Maintenance Tasks

Guidelines for regular maintenance, including reservoir cleaning and water treatment.

Troubleshooting Common Problems

Solutions for common issues like water leaks, odors, and operational failures.

Storage Guidelines

Available Accessories

Replacement Parts Guide

Electrical Wiring Diagrams

Warranty and Disclaimers

QuietCool QC18DVS Specifications

General

Model	QC18DVS
Type	Whole House Fan
Motor Type	Direct Drive
Speeds	Variable
Number of Speeds	3
Voltage	120V
Recommended Attic Size	1800 sq ft
Airflow (CFM)	1800 CFM
Amperage	1.8A
Watts	216W
Noise Level (at high speed)	55 dB
Warranty	10 years