QuietCool QC18DVS User manual

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18” QuietCool
Portable Evaporative Cooler
Owner’s Manual
This Manual covers the QC18DVS QuietCool Portable Evaporative Cooler.
QC18DVS –QuietCool 18” Direct Drive Variable Speed with Deep Base (Shown)
QC18D3 –QuietCool 18” Direct Drive 3 Speed with Deep Base
Optional Cover for storage
protection. See section 9.0 for
details and a convenient Fax
Back Order form.

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File this owner’s manual in a safe place for future reference. It contains operating procedures –maintenance procedures –
trouble shooting guide –replacement parts guide –order form –and contact information. You will need this!
Warnings and Cautions
Read before operating QuietCool Portable Evaporative Cooler
ELECTRICAL
WARNING Do not use a 3 prong to 2 prong adapter on the electrical power cord. Use 14 gauge extension cord only.
WARNING Do not remove the grounding lug from the electrical power cord plug.
Use only 3 prong, grounded receptacles.
WARNING Disconnect the QuietCool Portable Evaporative Cooler from your electrical power source before performing
any service action.
WARNING Your QuietCool unit must be plugged into a fused or circuit breaker protected 20 Amp, 120 Volt, 60 Hz circuit
–unless specifically manufactured for another voltage / frequency configuration. See manufacturer’s label on
cooler. A ground fault circuit interrupter protected circuit is strongly recommended.
WARNING Check your units electric power cord for insulation breaks, cracks or fraying. If any of these conditions are
found DO NOT USE. See your distributor for immediate service replacement parts.
WARNING Some electric motors require periodic oiling. Check your model for oil fill holes. A couple drops of light oil
per year normally will be sufficient. Heavy usage may require additional oil.
WARNING To reduce the risk of fire or electrical shock, DO NOT USE with any solid-state speed control device.
WARNING To reduce the risk of electrical shock or injury to persons, DO NOT USE cooler in a window.
WATER
WARNING Do not connect your QuietCool Portable Evaporative Cooler to any water source where water pressure exceeds
60 p.s.i. If your water source is above 60 p.s.i. you must use a pressure regulator (which can be found
at your local hardware store).
QuietCool Portable Evaporative Cooler

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Table of Contents
1.0 Introduction
1.1 Quick Start
1.2 Operate unit for 2 weeks before adding Evap-O-Matic Tablets
2.0 How Evaporative Cooling Works
3.0 Unpacking your new QuietCool unit
4.0 Set-up your QuietCool unit
4.1 Connecting the electrical supply
4.2 Connecting the water supply
5.0 Operating procedures
5.1 Filling the units reservoir with water
5.2 Turn-on pump
5.3 Turn-on Fan
6.0 Daily Operating procedures
6.1 Turn-on pump
6.2 Turn-on fan
6.3 Turn-off unit
7.0 Maintenance
7.1 Access inside of unit
7.2 Removing the cooling media
7.3 Daily maintenance
7.4 Periodic maintenance
7.5 QuietCool Trouble Shooting Guide
8.0 Storage
9.0 Accessories
10.0 Replacement Parts and –Order form
11.0 Wiring Diagrams for 18” unit
12.0 Warranty
File this owner’s manual in a safe place for future reference. It contains operating procedures –maintenance procedures –
trouble shooting guide –replacement parts guide –order form –and contact information. You will need this!
QuietCool Portable Evaporative Cooler

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1.0 Introduction
Your QuietCool was engineered to be the most efficient portable evaporative cooler manufactured. It was
manufactured and assembled at our plant in Houston, Texas.
Your QuietCool was tested 3 ways. Your unit was tested for 1. Maximum air flow at operating static pressure.
Only QuietCool is tested in operating conditions with 2. Water and 3. Electricity before it is shipped.
QuietCool is easy to operate –needs only tap water and electricity to operate.
QuietCool is easy to move –roll your QuietCool to the area you want to cool. QuietCool comes standard with
straight and swivel / lock casters which make moving your QuietCool a breeze.
1.1 Quick Start –Your Quick Start Information is located inside the
information packet shipped with your unit.
Look on the front of your QuietCool packaging in a plastic sleeve.
1.2 Evap-O-Matic Tablet –Chemical Water Treatment. Operate your unit
for 2 weeks –then, flush out old water –add clean water –then add ½
Chemical Water Treatment tablet. Note: Tablet makes water foam which
can cause unit to spray water temporarily (for a day or two).
2.0 How Evaporative Cooling Works
Keeping in mind that regular fans only circulate same temperature air -
same humidity –your QuietCool portable evaporative cooler takes that
same existing air, combines it with evaporating water (which
dramatically lowers the temperature) immediately relieving hot, dry
areas, similar to the conditions when a natural rain storm approaches, the temperature drops noticeably cooler, because the
air is saturated with water. Because your air is now saturated with water it becomes noticeably cooler. In high humidity areas
the temperature will not be as cool –however, the QuietCool was engineered efficient to evaporate perspiration and sweat
from employees to keep them cooler.
3.0 Unpacking your new QuietCool unit
Note: Carefully examine your QuietCool shipping carton for damage
before opening. If your carton is damaged –notify the shipper immediately!
Your QC18” unit was shipped strapped a wooden pallet inside a cardboard box.
First remove the straps then you may open the cardboard box. Your QuietCool
comes with a box of casters. Attach swivel casters to fan side of unit and straight
casters to pad side. Use a 3/8” wrench to attach casters.
4.0 Set-up your QuietCool unit.
Roll your QuietCool unit to a level surface and lock the swivel casters to prevent
accidental movement.
4.1 Connecting the electrical supply
Electrical cord for 120V, 15Amp connection.
Note: Standard ¾” water connection for
utility water source under 60 p.s.i.

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All QuietCool models require regular 3 prongs, ground with 120 volt power supply. Plug electrical cord into receptacle. If
using an extension cord be sure it is rated for at least 20 amps for the distance your cord is running. To be safe –make sure
no other equipment, such as a radio or electrical equipment, is plugged into the same circuit. The QuietCool should run
smoothly on 20 amp, 120 volt, and 60 Hz circuit.
4.2 Connecting the water supply
Connect standard water hose to female fitting on the right side of your QuietCool (looking at the fan blade side). If your
water pressure is above 60 pounds per square inch (p.s.i). you must use a pressure regulator (which can be found at your
local hardware store). If you have purchased our optional QR60 gallon reservoir tank –simply attach the garden hose from
the tank to the cooler. Note: Do not connect to water source exceeding 60 p.s.i. –this can cause damage to your QuietCool.
5.0 Operating procedures
Back your QuietCool unit up to a fresh air source
such as an open door or window so the unit can pull
in fresh air from the outside. Next, make sure you
have a natural exhaust at the opposite end of the
room, bay or building such as a window, door or bay
door. This will ensure maximum efficiency from
your unit. Finally make sure there are no obstructions
between your QuietCool and the people / area you
need to cool.
5.1 Filling the units reservoir with water
Once your water hose is connected, turn water on and
fill the reservoir with water. Listen carefully. You
can hear water filling the reservoir. Check your water connection –make sure there is no dripping. Once the reservoir is
filled with water the float valve will automatically shut off the water source. When you no longer hear the water running –
you know that the float valve is fully operational (the water turns off automatically) and you are now ready to turn on the
water pump. Warning! Do not run water pump without water in the reservoir.
5.2 Turn-on pump
To turn-on the water pump - flip the toggle switch for the water pump to on. Switch is located on front side of unit.
Warning! Do not run water pump without water in the reservoir. The water pump will now begin pumping water to the
top of the unit so that gravity will allow the water to run down the backside of unit inside and on the cooling pads. Once
your QuietCool cooling pads are saturated –then, you are ready to turn fan on high and begin to feel the cooling effect from
your new QuietCool. Note: After your cooling pads are broken in (typically takes 1 -2 weeks in operation) it will take less
time to saturate pads for start-up. This is a good time to dump the old water –add ½ Evap-O-Matic Chemical Water
Treatment tablet and refill with fresh water. (Simply remove a cooling pad to place tablet inside of water reservoir).
5.4 Turn-on Fan

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Once your cooling pads are saturated with water –you may turn your QuietCool unit on high. Now you can begin to feel the
QuietCool difference in temperature. After your QuietCool has run for 5 minutes or so, visually inspect the pads –if water is
dripping outside the unit –gently adjust pads at the bottom to stop water flowing outside the unit.
6.0 Daily Operating procedures
6.1 Turn-on water pump
Turn on water pump to unit –turn fan on low –let cooling pads get saturated –then turn fan on high for cooling.
You must determine what works best for you and your specific environment.
6.2 Turn fan on high
When you can see that the cooling pads are saturated with water –turn the fan on high and feel the cooler air coming from
your QuietCool unit. Adjust the fan speed for your comfort.
6.3 Turn-off unit at end of day
15 minutes before closing for the day –(1.) Turn off water pump with toggle switch –(2.) Leave fan running –this action
will shut-off water to the cooling pads while keeping the fan running. The fan will dry out the cooling pads. (3.) When the
cooling pads are thoroughly dry –turn off fan. Drying your cooling pads thoroughly - everyday will help prevent mold
and mildew growth, plus it will prolong the life of your cooling pads.
7.0 Maintenance
7.1 Access inside of unit
Turn-off water pump and let the fan continue to run until the cooling pads are thoroughly dry (about 10 –15 minutes). Once
your cooling pads are completely dry you may turn-off fan. Now unplug electricity to unit to avoid unnecessary shock. Next,
using a 7/16” wrench – remove the two retaining bolts from the backside and topside (cooling pad side) of the unit. These
two bolts hold the thick metal angle retaining bar and the cooling pads in place. Next, remove the angle retaining bar and set
to side. Now you are ready to remove your unit’s cooling pads.
7.2 Removing the cooling pads
Before your start, make a note of the direction of the angle of the pads flutes (see side of
pads). You must put pads back in correct order for your unit to function effectively.
(Note: Install steep side 45° angle flute to the back of unit - see photo for verification.)
Once the retaining angle bar is removed from the top of your QuietCool unit, reach to the top of
the dry cooling pad to the left and gently take hold of the top of the pad and gently pull down and back –this action
will loosen the pad from the unit. Look at the direction of the angle of the pad flutes (side of
pads). Remove the cooling pad and proceed to the next pad. Then, remove all cooling pads and gently set in a safe place.
Note: this is a good time to take the cooling deck pads outside and run clean water over the pads to remove any accumulated
dirt and debris. Do not use high pressure hose –this will damage pads and their ability to function effectively. Make sure the
pads are thoroughly dry before placing back inside the unit.
7.3 Daily maintenance

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15 minutes before quitting time –turn off the water pump and let the fan run 10 –15 minutes –to dry out the cooling pads
before leaving. Inspect the cooling pads to make sure they are thoroughly dry (this action helps to reduce mold and mildew)
when pads are completely dry then turn-off fan.
7.4 Periodic maintenance
Depending upon your environment and how often you operate your QuietCool will depend on how dirty your water gets in
the reservoir and how often you will need to clean it. If you begin to detect an algae smell coming from your unit –it’s time
to flush your QuietCool reservoir with fresh water. Refer to and follow the steps above in 7.2 and remove 1 of the cooling
pads from the left side of the unit to gain access to your water reservoir. Take a small sponge and clean out your water
reservoir with a light cleaner and wipe it down completely and let the unit dry. (You may want to use a wet / dry shop
vacuum to clean out unit). When unit is clean add ½ Evap-O-Matic tablet to reservoir and replace your cooling pads (make
sure flutes are facing correct direction –see photo) retaining bar and bolts and add fresh, clean water back to the units’water
reservoir. Note: You can get the tablets by ordering from the QuietCool order form found in section 9.0. Simply follow
instructions on the label. You may want to consider a Water Stabilizer to remove harmful calcium, scale build-up and algae
–see section 9.0.
Warning! Do not run pump without water in the reservoir. This action will burn up your QuietCool’s water pump.
7.5 QuietCool Trouble Shooting Guide
Problem
1. Water on the Floor
A. Front of unit . . .
B. Back of unit
2. Found water on floor after
overnight shut off.
3. Foul odor from fan
A. New Unit . . .
Problem (continued)
Cause
Damage to polyethylene housing. Note:
Check for possible cracks in the blue
polyethylene.
Excess water at top or bottom of pads.
Damage to blue polyethylene housing.
Leaking from bottom of pads.
Excessive water pressure.
Float valve maybe stuck in open position.
New pad may have a temporary odor (this
is normal) –you may be smelling the
thermosetting resin –it will pass.
Cause (continued)
Solution
Repair as necessary.
Very gently move pads slightly with your finger
tips.
Search for leaks and repair as necessary.
Push bottom of cooling pads gently inside to
stop leaking.
Check your water pressure. Max water pressure
is 60 p.s.i., by adding a water pressure regulator
found at local hardware store.
Contaminants in water; drain cooler, sump and
refill. If float remains stuck remove pads and
examine float for debris or damage. Wash out
debris and replace float. Continue.
Drain and refill several times in first week to
remove thermosetting resin smell.
Add Evap-O-Matic Tablet to reduce smell –
and algae.
Solution (continued)

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B. After normal use . . .
4. No water running over the
pads . . .
5. Scale build-up on cooling pads.
Water quality –check your immediate
environment.
Water supply off at main valve source.
Pump switch is off.
Water filter may be clogged.
Hard water with excessive mineral content.
Water should be drained about once a month or
sooner depending on your specific working
environment –the water quality and conditions.
Open water valve at supply. You may wish to
keep this valve open at all times.
Turn pump switch on.
Remove the cooling pads see section 6.2. Open
back of unit –open water filter –pull out filter
screen and clean. Replace and try again.
Use Evapo-O-Matic Tablet or add a Water
Stabilizer at the discharge side of the pump.
See Accessories section 9.0.
Flush water from unit’s water reservoir more
frequently. See section 7.4.
8.0 Storage
Remove pads as described above in 7.2 and rinse pads clean with fresh water. Dry cooling pads in sunlight. Drain water
reservoir completely and wipe dry. Replace dry cooling pads in proper position. Replace top angle bar to hold pads in place.
Store QuietCool in dry, clean area and cover (you can order a QCCover for your unit –see section 9.0) to prevent dust build
up to have unit ready for the next hot season. Note: Make a list of accessories and needed parts –
purchase off-season to save money.

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9.0 Accessories
QCG1001 –Water Stabilizer for 18” unit. The water
stabilizer removes harmful calcium, scale build-up and algae
by keeping it from collecting anywhere within your unit. The
calcium and scale is flushed out of your unit when you flush
out the sump –extending the life of your cooling pads and all
internal water working parts. (The water stabilizer must be
connected inside the cooler at the discharge side of the water
pump). List $290.00.
QRT60 –Quietaire Portable Water
Reservoir for units where there is no access
to water. Constructed with medium density
polyethylene and a stand made of
galvanized steel with 4” casters for easy
moving. Has connection for standard water
hose with valve. List $ 605.00 each.
NSN-4130-01-449-4618
QC10W –10” Semi-Pneumatic Rough
Terrain Wheels designed for U.S. Military
for use on rugged terrain.
Also available for general public use too.
Complete set of 4 Wheels. List $ 694.00
NSN-4130-01-507-7061
Evapo-O-Matic Tablets for all QuietCool Portable Evaporative Coolers. Evapo-O-
Matic is the chemical water treatment tablet that stops scale and calcium deposits
associated with hard water. Adds life to vital cooler equipment –increases cooling
efficiency and ends swampy odors. Treatment: 1/2 tablet for18” units. EPA registered
protection from harmful air-borne organisms found in cooler equipment.
QCTAB1 –Single tablet pack. List $ 16.00. NSN-4130-01-507-7080
QCTAB2 –Double tablet pack. List $ 25.00 (12.50 ea.) NSN-4130-01-507-7081
QCTAB12 –Jar of 12 tablets.List $ 99.00 (8.25 ea.) NSN-4130-01-507-7082
Case of QCTAB12 –12 Jars of 12 tablets each. (Best buy at 6.93 each). List $ 998.00
Note: Operate new units 2 weeks –flush out old water –add fresh water with ½ tablet.
QC18CC –Protective Cooler Cover for 18”
unit. Tyvek-plastic type cover for unit to
protect during storage. Helps keep unit clean
during off-seasons.
List $ 49.00 each.
QC18PM –Intake Pre-Filter for 18” unit. A
must for environments with air-borne
particles like sawdust or lint. Suggest 2
intake filters. When one gets dirty –replace
with second –clean first filter, then dry - so
it’s ready when second gets dirty. Simply
remove retaining bar at top to hold pre-filter
in place.
List $ 14.00 each.
QuietCool accessories and parts
were engineered to always fit your
QuietCool unit –no matter how
old. When you need a part –we
have it in stock –if we don’t have
it –we’ll make it.

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10.0 Replacement Parts
All Accessories / Replacement Parts are obtainable through your local QuietCool distributor. Should a part be temporarily
out of stock at your distributor he can special order it for you.
You can contact the manufacturer, Quietaire Cooling Inc. directly at: Telephone: [phone] or Fax: [phone].
Please have your units 1. Model number 2. Serial number (look at front side of your cooler - on the right hand side –inside
guard - on the fan shroud) handy when you contact either your distributor or Quietaire Cooling Inc. for all Accessories /
Replacement parts. This will assure that we are able to help you with the correct part the first time.
11.0 Order form
QC18PUMP –Replacement Pump for all
18” units. Simply replace the new pump with
the old pump.
List $ 81.00 each.
TR798 –Float Valve for all 36” units.
Automatically adjusts water level in units
reservoir.
List $ 16.00 each.
12Filter –Inline Filter for all 36” units. Simply
open water filter located inside unit, remove old
filter screen and replace with new filter.
List $ 23.00.
QC18CK –4” Rigid Caster Replacement
and 4” Swivel Caster Replacement for all
18” units. Simply replace the new casters
with the old caster. Sold in complete set of 4.
List $ 49.00 set.
QC4X1SC –4” Swivel Caster Replacement
for all 36” units. Simply replace the new caster
with the old caster. Sold in sets of 2.
List $ 11.00 set.
CD30612–Cooling Media Replacement for
18” unit. Cross corrugated angle fluted specially
formulated cellulose material treated with a
thermosetting resin. (Replacement set of 2).
List $ 64.00 set.

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Fax Back Order Form
Accessories and Replacement Parts For all QC18” fan blade models.
For all motors, pulleys, belts, switches and fan blades call Quietaire at 713.228.9421.
Accessories
Description
Part Number
Quantity
Amount
Price
Intake Pre-Filter –protects cooling
pads from air-borne particles.
QC18PM
List $ 14.00 each
Protective Cooler Cover –protects
cooler during long storage.
QC18CC
List $ 49.00 each
Evapo-O-Matic Tablets –Chemical
water treatment tablets.
QCTAB1 –Single
Tablet
List $ 16.00 each
(16.00 per tablet)
Evapo-O-Matic Tablets –Chemical
water treatment tablets.
QCTAB2 –2 Tablets
List $ 25.00
(12.50 per tablet)
Evapo-O-Matic Tablets –Chemical
water treatment tablets.
QCTAB12 –Jar of 12
Tablets
List $ 99.00
(8.25 per tablet)
Evapo-O-Matic Tablets –Chemical
water treatment tablets.
Case of QCTAB12 12
Jars - 12 Tablets
List $ 998.00
(6.93 per tablet)
Water Stabilizer –Removes harmful
calcium, scale build-up and algae.
QCG1001 –Water
Stabilizer
List $ 290.00 each
Portable Water Reservoir –For use in
field where there is no access to water.
QRT60 –Water
Reservoir
List $ 605.00 each
Replacement Parts
Description
Part Number
Quantity
Amount
Price
Water Pump Replacement –Pumps
water up to cooling pads.
QC18PUMP
List $ 81.00 each
Float Valve Replacement –
Automatically adjusts water level.
TR798
List $ 16.00 each
Inline filter –Catches large debris in
water line to cooling pads.
12Filter
List $ 23.00 each
Replacement Casters (Straight &
Swivel Wheel) –Sold in set of 4.
QC18CK - 4 Wheels
List $ 49.00 set
Cooling Pad Replacement –
Replacement set of 2 pads.
CD30612 –Set of 2
cooling pads
List $ 64.00 set
Sub Total
$
Texas Sales Tax
$
Total
$
Add up totals for needed accessories and replacement parts and Fax Back Form to: 713.228.9425
Texas residents add .0825 State Sales Tax. Shipping Charges: Fax your Zip Code and Shipping Address.
Name: __________________________________________________________________________________________________________________
Company Name: __________________________________________________________________________________________________________
Telephone Number: ________________________________________ Fax Number:____________________________________________________
Billing Address: ___________________________________________________________________________________________________________
Shipping Address: _________________________________________________________________________________________________________
City: ____________________________________________________ State: ____________________ Zip: ________________________________
Credit Card Type: ___________ Credit Card Number: __________________________________________
Expiration Date: ____________ Name On Card:_______________________________________________

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12.0 Wiring Diagrams for 18” unit

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13.0 Warranty
WARRANTY
WARRANTY AND DISCLAIMER: Quietaire Cooling extends this limited warranty to the original buyer and warrants that products
manufactured by Quietaire Cooling shall be free from original defects in workmanship and material for one year from date of shipment,
provided same have been properly stored, installed, service, maintained and operated. This warranty shall not apply to products which have
been altered or repaired in any way so as to effect its performance, without Quietaire Cooling's express authorization, or altered or reliability,
nor which have been improperly installed or subjected to misuse, negligence, or accident, or incorrectly used in combination with other
substances. The Buyer assumes all risks and liability for results of; use for the products. Warranties on purchased parts, such as electric motor
and controls are limited to the terms of warranty extended by our supplier.
LIMITATION OF REMEDY AND DAMAGES: All claims under this warranty must be made in writing and delivered to Quietaire Cooling
505 N. Hutcheson, Houston, Texas, 77003 within 15 days after discovery of the defect and prior to the expiration of one year from the date of
shipment by Quietaire Cooling of the product claimed defective, and Buyer shall be barred from any remedy if Buyer fails to make such claims
within such period.
Within 30 days after receipt of a timely claim, Quietaire Cooling shall have the option either to inspect the product while in Buyer's possession
or to request Buyer to return the product to Quietaire Cooling at Buyer's expense for inspection by Quietaire Cooling. Quietaire Cooling shall
replace, or at its option repair, free of charge, any product it determines to be defective, and it shall ship the repaired or replacement product to
Buyer F.O.B. point of shipment; provided, however, if circumstanced are such as Quietaire Cooling judgment to prohibit repair of replacement
to remedy the warranted defects, the buyer's sole and exclusive remedy shall be a refund to the buyer of any part of the invoice price, paid to
Quietaire Cooling for the defective product or part.
Quietaire Cooling is not responsible for the cost of removal of the defective product or part, damages due to removal, or any expenses incurred
in shipping the product of part to or from Quietaire Cooling plant, or the installation of the repaired or replaced product or part.
Implied warranties, when applicable, shall commence upon the same date as the express warranty provided above, and shall except for
warranties of title, extend only for the duration of the express warranty provided above. Some states do not allow limitations on how long an
implied warranty lasts, so the above limitation may not apply to you. The only remedy provided to you under an applicable implies warranty
and the express warranty shall be the remedy provided under the express warranty, subject to terms and conditions contained therein. Quietaire
Cooling shall not be liable for incidental and consequential losses and damages under the express warranty, any applicable implied warranty, or
claims for negligence, except to the extent that his limitation is found to be unenforceable under applicable state law. Some states do not allow
exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. The warranty gives
you specific legal rights, and you may also have other rights which vary from state to state.
No employee, agent, dealer, or other person is authorized to give any warranties on behalf of Quietaire Cooling or to assume for Quietaire
Cooling any other liability in connection with any of its products except in writing and signed by an officer of Quietaire Cooling.
TECHNICAL ADVICE AND RECOMMENDATION, DISCLAIMER: Notwithstanding any past practice or dealings or any custom of the
trade, sales shall not include the furnishing of technical advice or assistance or system design, any such assistance shall be at Quietaire Cooling
sole option and may be subject to additional charge.
Quietaire Cooling assumes no obligation or liability on account of any recommendations, opinions, or advice as to the choice, installation or
use of products, Any such recommendations, opinions or advice are given and shall be accepted at your own risk and shall not constitute any
warranty or guarantee of such products or their performance.
QUIETAIRE COOLING INC.
505 NORTH HUTCHESON STREET
HOUSTON, TEXAS 77003
TELEPHONE: [phone] FAX: [phone]
Visit us online at: www.Quietaire.com Click on QuietCool