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QuietCool QC36B3 - User Manual

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1
36” QuietCool
Portable Evaporative Cooler
Owner’s Manual
This Manual covers all of the following QuietCool Portable Evaporative Coolers.
QC36D1 – QuietCool 36” Direct Drive 1 Speed
QC36DVS – QuietCool 36” Direct Drive Variable Speed (shown above)
QC36B1 – QuietCool 36” Belt Drive 1 Speed ½ HP
QC36B1X – QuietCool 36” Belt Drive 1 Speed ¾ HP
QC36B3 – QuietCool 36” Belt Drive 3 Speed
QC36B1XHL – QuietCool 36” Belt Drive 1 Speed ¾ HP – Explosion Proof
Optional Cover for storage protection.
See section 9.0 for details and a
convenient Fax Back Order form.

Table of Contents

Questions and Answers

  • A
    andreabarnesAug 8, 2025
    What to do if QuietCool QC36B3 has no water running over the pads?
    • S
      Sara AndersonAug 8, 2025
      First, ensure the water flow valve is open; QuietCool units typically perform best when the valve is open 1 1/4 turns. Check that the main water supply valve is open and the pump switch is on. Also, the water filter may be clogged. To resolve this, remove the cooling pads, open the back of the unit, access the water filter, remove and clean the filter screen, then replace it and try again.
  • E
    eblackAug 16, 2025
    How to fix water on the floor from QuietCool QC36B3?
    • S
      Stephanie McdonaldAug 16, 2025
      If there's too much water, reduce the water flow using the control valve on the front of the unit, closing it completely and then opening it 1 1/4 turns. (QuietCool units usually operate at peak performance at 1 1/4 turns). Check for cracks in the blue polyethylene housing and repair as needed. Search for leaks and repair as necessary. If leaking is from the bottom of the pads, gently push the bottom of the cooling pads inside to stop it.
  • D
    Dennis HunterAug 27, 2025
    How to eliminate foul odor from QuietCool QC36B3 Air Conditioner?
    • E
      emilyfrancisAug 27, 2025
      If it's a new unit, the odor is likely temporary from the thermosetting resin on the new pads. Drain and refill the unit several times in the first week to reduce this smell. For ongoing odor issues, add QC Tablets to reduce smell and algae. Water should be drained about once a month or sooner, depending on your specific working environment and water quality.

Summary

Warnings and Cautions

Introduction to QuietCool

Quick Start Guide

Locates essential quick start information within the unit's information packet.

Chemical Water Treatment

Instructions for using Evap-O-Matic tablets for water treatment.

How Evaporative Cooling Works

Unpacking Your QuietCool Unit

Setting Up Your QuietCool Unit

Connecting Electrical Supply

Details on connecting the unit to a 120V, 20 Amp power supply and using appropriate extension cords.

Connecting Water Supply

Instructions for connecting a water hose, including pressure regulator requirements.

Operating Procedures

Filling the Water Reservoir

Steps to connect water and fill the unit's reservoir using the float valve.

Turning On the Water Pump

Procedure for activating the water pump and ensuring water flows to the cooling pads.

Turning On the Fan

Instructions to turn on the fan after cooling pads are wet to feel the cooling effect.

Daily Operating Procedures

Daily Pump and Fan Operation

Steps for daily operation: turning on pump, adjusting water flow, and turning on fan.

Daily Fan Adjustment

Guidance on turning on the fan to high speed and adjusting fan speed for comfort.

Daily Unit Turn-off

Procedure for turning off the pump and fan to dry cooling pads and prevent mold.

Maintenance

Accessing the Unit Interior

Steps to safely access the inside of the unit for maintenance, including unplugging power.

Removing Cooling Pads

Detailed instructions on how to remove cooling pads, noting flute direction for reinstallation.

Daily Maintenance Tasks

Specific daily tasks to ensure cooling pads are dry and prevent mold/mildew.

Periodic Maintenance

Guidance on flushing the reservoir, cleaning, and adding water treatment for algae control.

Troubleshooting Guide

Storage Instructions

Available Accessories

Replacement Parts

Order Form

Wiring Diagrams

Warranty Information

QuietCool QC36B3 Specifications

General IconGeneral
TypeWhole House Fan
MotorPSC
Voltage120V
Number of Speeds3
Housing MaterialSteel
Recommended Attic SizeUp to 1800 sq ft
Motor TypePSC (Permanent Split Capacitor)
Duct Size16 inches
Fan Diameter16 inches
Warranty15 years

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