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QuietCool QC48B2 - User Manual

QuietCool QC48B2
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1
48” QuietCool
Portable Evaporative Cooler
Owner’s Manual
This Manual covers the QC48B2 QuietCool Portable Evaporative Cooler.
QC48B2 – QuietCool 48” Belt Drive 2 Speed
Optional Cover for storage protection.
See section 9.0 for details and a
convenient Fax Back Order form.

Table of Contents

Questions and Answers

  • K
    Kelly KelleyJul 30, 2025
    What to do if no water is running over the pads in my QuietCool QC48B2 Air Cleaner?
    • S
      Steven MorenoJul 30, 2025
      First, check your water flow valve to ensure it's open. QuietCool units usually operate best at 1 ¼ turns. Also, verify the main water supply valve is open and the pump switch is on. The water filter may be clogged; remove the cooling pads (see section 6.2), open the back of the unit, open the water filter, pull out the filter screen, and clean it. Replace and try again.
  • P
    Patrick MooreAug 3, 2025
    What to do if I found water on the floor after overnight shut off of my QuietCool QC48B2 Air Cleaner?
    • P
      Peter OrtizAug 3, 2025
      Check your water pressure, the maximum water pressure should be 413 KPA (60 p.s.i.). Adjust the water supply valve to 1 ¼ turns or install a water pressure regulator. If the float valve may be stuck in open position due to contaminants in the water, drain the cooler sump and refill. If the float remains stuck, remove the pads and examine the float for debris or damage, wash out any debris and replace the float.
  • M
    Mrs. Lisa Mcgee MDAug 7, 2025
    Why is there water on the floor behind my QuietCool QC48B2?
    • A
      Alex CarlsonAug 7, 2025
      This could be due to damage to the polyethylene housing, so check for cracks in the blue polyethylene, or excess water at the top or bottom of the pads. Reduce the water flow with the water control valve located on the front of the unit. Search for leaks and repair as necessary. Push the bottom of the cooling pads gently inside to stop leaking.
  • N
    Natalie GreenAug 12, 2025
    How to get rid of foul odor from new QuietCool Air Cleaner?
    • J
      Jonathan Price Jr.Aug 12, 2025
      The new pad may have a temporary odor, which is normal and may be from the thermosetting resin. It will pass. To reduce the smell, drain and refill the unit several times during the first week. You can also add QC Tablets to reduce the smell and algae.
  • B
    Brenda BrownAug 16, 2025
    Why is there water on the floor in front of my QuietCool QC48B2?
    • F
      fmillerAug 16, 2025
      This is likely due to too much water. Reduce the water flow with the water control valve located on the front of the unit. Close the valve all the way, then open 1 ¼ turns.
  • M
    maddoxsusanAug 20, 2025
    What to do if there is a foul odor from QuietCool QC48B2 Air Cleaner after normal use?
    • R
      Renee LawrenceAug 20, 2025
      The odor could be related to water quality or your immediate environment. Drain the water about once a month, or more frequently depending on your specific working environment, water quality, and conditions.
  • C
    Charles ConwayAug 25, 2025
    How to prevent scale build-up on QuietCool QC48B2 cooling pads?
    • S
      Sheila PadillaAug 25, 2025
      Scale build-up is caused by hard water with excessive mineral content. Use Evapo-O-Matic Tablets or add a Water Stabilizer at the discharge side of the pump. Also, flush water from the unit’s water reservoir more frequently.

Summary

Warnings and Cautions

Introduction

Quick Start Information

Locates Quick Start information packet shipped with the unit, often found in a plastic sleeve.

Evap-O-Matic Chemical Water Treatment

Instructions for initial use of chemical water treatment tablets, involving flushing and adding tablets.

How Evaporative Cooling Works

Unpacking and Initial Setup

Unpacking Your New QuietCool Unit

Examine shipping carton for damage before opening. Notify shipper immediately if damaged.

Connecting Electrical Supply

Plug electrical cord into receptacle. Use a 20 amp, 120 volt, 60 Hz circuit. Ensure proper grounding.

Connecting Water Supply

Connect standard water hose to female fitting. Do not exceed 60 p.s.i. water pressure; use regulator if needed.

Operating Procedures

Filling Reservoir and Turning On Pump

Fill reservoir via hose, open valve 1.25 turns. Turn on pump once water is present. Do not run pump dry.

Adjusting Water Flow and Turning On Fan

Adjust water flow valve for pad saturation. Turn on fan once pads are wet. Adjust fan speed for comfort.

Daily Operating Procedures

Pump, Water Flow, and Fan Operation

Turn on pump, saturate pads, turn on fan. Adjust water flow for efficient operation.

Turning Off Unit

Turn off pump, leave fan running to dry pads. Turn off fan when dry to prevent mold.

Maintenance Procedures

Accessing and Removing Cooling Pads

Dry pads, unplug unit, remove retaining bolts. Gently pull pads down and out. Rinse pads with clean water.

Daily and Periodic Maintenance

Dry pads daily. Periodically flush reservoir for algae, clean with light cleaner, and add fresh water.

Troubleshooting Guide

Provides solutions for common issues like water leaks, odors, no water flow, and scale build-up.

Storage Instructions

Accessories

Replacement Parts

Order Form

Wiring Diagrams

Warranty Information

QuietCool QC48B2 Specifications

General IconGeneral
BrandQuietCool
ModelQC48B2
CategoryAir Cleaner
LanguageEnglish