Drieaz DRIZAIR 120 User manual

07-00022 B 10-96
OWNER'S MANUAL
WARRANTY • OPERATING INSTRUCTIONS • SAFETY
MAINTENANCE • SPECIFICATIONS • PARTS LIST
DRIZAIR 120 REFRIGERANT
DEHUMIDIFIER
This manual has important safety warnings and operating information.
Please read before using the dehumidifier and save for future reference.
PURCHASE DATE: ________________________________ SERIAL NO.: ______________________________________
DEALER: ____________________________________________________________________________________________________
DRI-EAZ PRODUCTS, INC. • 1320 Josh Wilson Road, Burlington WA 98233 • [phone]

COPYRIGHT DRI-EAZ PRODUCTS, INC. 1996 2
TABLE OF CONTENTS
SAFETY INFORMATION.............................................2
SAFETY WARNINGS..................................................2
5-YEAR WARRANTY ..................................................3
LOCATING THE DEHUMIDIFIER...............................4
Mobility ..................................................................4
OPERATING CONDITIONS........................................4
PRINCIPLES OF OPERATION ...................................5
Drying Operation ...................................................5
Defrosting..............................................................5
EXTRACTION RATES.................................................5
GRAVITY FEED DRAINAGE.......................................6
AUTOMATIC PUMP-OUT SYSTEM............................6
ELECTRICAL CONNECTIONS...................................6
Extension Cord Lengths........................................6
OPERATING INSTRUCTIONS....................................6
MAINTENANCE...........................................................7
Cleaning the Filter.................................................7
Cleaning the Coils.................................................7
Electrical Wiring & Cord ........................................7
Fan Motor..............................................................7
Drain Hoses...........................................................7
Peristaltic Pump.....................................................7
Pump Tube Replacement......................................8
SPECIFICATIONS ......................................................9
TROUBLESHOOTING...............................................10
Congratulations on your selection of a new Driz-
Air 120 Dehumidifier from Dri-Eaz Products Inc. It is
our goal to offer you the best high performance dehu-
midifier available. We invite your written appraisal and
suggestions for improvements. Reading this Owner's
Manual will help you achieve maximum benefit from
your dehumidifier.
SAFETY INFORMATION
Dri-Eaz is concerned about the safety of everyone
who uses or comes in contact with the dehumidifier.
The dehumidifier is designed to be operated in com-
pliance with the safety warnings and instructions pro-
vided in this manual. Like other electrical devices, the
dehumidifier can become dangerous if it is abused,
damaged or misused. Failure to observe the following
warnings can result in injury to persons, fire danger or
damage to the dehumidifier.
SAFETY WARNINGS
To reduce the risk of electrical shock, fire, or per-
sonal injury, read and follow each of the warnings be-
low.
Keep the Dehumidifier Grounded
The dehumidifier is designed to operate on ordinary
household 115 volt, 60 Hertz alternating current and
comes with a three pronged grounding plug. Never
remove or modify this three pronged plug. Do not use
an ungrounded two pronged adapter. The grounding
pin on the dehumidifier’s plug is an essential safety
feature that will help reduce the risk of shock or fire in
the event of an electrical hazard.
Danger
Removal or alteration of the grounding plug, or use of
an adapter that defeats the dehumidifier’s electrical
grounding, can create risk of serious personal injury or
fire in the event of damage to or malfunction of this
product. Do not use the dehumidifier if you cannot
connect it to a receptacle that accepts a three-pronged
plug. If you are unsure whether a receptacle is
grounded, consult a qualified electrician.
Protect the Power Cord from Damage
Never operate the dehumidifier with a damaged or
frayed power cord or extension cord. Never unplug the
dehumidifier by pulling the cord. Grasp the plug firmly
and pull straight out. Do not close a door on the cord,
or pull the cord over or around sharp corners or rough
surfaces. Do not run equipment over the cord or use the
cord as a handle. Keep the cord away from heated sur-
faces and out of standing water.
Keep Out of Water
Do not place the dehumidifier in standing or run-
ning water. Never operate or store the dehumidifier
outdoors or expose the dehumidifier to rain or water
from overhead sources, such as leaking pipes or drip-
ping ceilings. The dehumidifier is not weather proof
and water may drip into its electrical parts and cause
risk of electrical shock or damage to the unit.
Caution
The dehumidifier may be operated on a damp surface,
but you should make sure that no water pools around
the machine. If it does, do not operate the dehumidifier
until the surface has dried sufficiently to eliminate
pooling.
Electrical Components Must Be Dry
Never allow water inside the dehumidifier’s elec-
trical components. If these area become wet for any
reason, thoroughly dry them before using the dehumi-
difier.
Keep Children Away
The dehumidifier is not a toy. Do not allow children
to play with or around the dehumidifier. Be sure that
the dehumidifier is inaccessible to children when left
unattended. Children can hurt themselves or others by
playing with or around a dehumidifier. Secure all
rooms and buildings in which a dehumidifier is left
unattended while running.

COPYRIGHT DRI-EAZ PRODUCTS, INC. 1996 3
Warning
If using an open 5 gallon container to catch water from
the dehumidifier, you must have warning labels for
children on the bucket to help prevent drowning acci-
dents.
Handle With Care
Do not drop or throw the dehumidifier. Rough
treatment can permanently damage the refrigerant sys-
tem or wiring and create a hazardous condition.
Secure Unit During Transport
When transporting in a vehicle, secure the dehumi-
difier to prevent sliding and possible damage to the
unit or injury to vehicle occupants.
Don’t Modify Unit
Never modify the motor, wiring or casing of the de-
humidifier.
Keep Air Intakes Unobstructed
Operate the dehumidifier away from draperies and
other materials that may come in contact with its air
intakes. Do not allow any material to clog the air in-
takes, as this may cause the dehumidifier to overheat.
Do not allow oil, grease, or other matter (including
sawdust and drywall dust) to be drawn into the air in-
takes of the dehumidifier. Always use a clean air filter.
Don’t Insert Objects
Never insert any object into the dehumidifier, as
doing so could create a danger by damaging the unit or
causing an electrical shock hazard.
Danger
Do not attempt to service or clean the dehumidifier
while it is plugged into an electrical outlet. It is dan-
gerous for an unqualified individual to attempt to dis-
assemble or repair the dehumidifier.
Maintenance or Repair
Do not attempt to disassemble or repair a dehumi-
difier if you are not qualified to do so. Normal main-
tenance operations and troubleshooting solutions can
be handled by the technician in the field. More com-
plex problems should be handled by an authorized ser-
vice technician. See the Troubleshooting section.
If the dehumidifier is not working as it should, re-
turn it to Dri-Eaz or take it to a trained service person
for repair. For information about authorized repair and
maintenance, call Dri-Eaz at [phone].
5 YEAR LIMITED WARRANTY
Comprehensive Warranty: Dri-Eaz promises to
the original purchaser to repair or replace, at its option,
any part of the DrizAir Dehumidifier that proves to be
defective in workmanship or materials for a period of
two (2) years from date of purchase. During the first
90 days, Dri-Eaz will cover all material, labor and
shipping costs, to and from the service center. After the
90 days, the customer is responsible for shipping costs
to the Service Center. After one (1) year, the customer
is responsible for labor costs and shipping costs to and
from the service center.
Compressor and Coils Warranty: Dri-Eaz will
repair or replace, at its option, parts necessary to cor-
rect the compressor, evaporator or condenser coil
found to be defective in materials or workmanship for
a period of three (3) years from date of purchase. The
customer is responsible for all labor and shipping
charges after one year.
Housing and Frame Warranty: Dri-Eaz will
repair or replace, at its option, parts necessary to cor-
rect the housing and frame from metal cracks, weld
separations, or defects in materials and workmanship
for a period of five (5) years from purchase date. The
customer is responsible for all labor and shipping
charges after one year.
Limitations: This warranty shall not extend to any
products showing effects of misuse, disassembly, alte-
ration, lack of proper maintenance, corrosive chemi-
cals, improper voltage, accident damage, unauthorized
repairs, use of other than genuine parts and materials,
fire, flood, normal wear or any other causes beyond
Dri-Eaz Products' control. The warranty obligation ex-
tends only to the repairs or replacement of parts found,
upon Dri-Eaz Products' examination, to be defective.
The foregoing constitutes the entire warranty and
no other warranty, liability, contingency or responsibil-
ity, direct, indirect, consequential or in any way con-
nected with the sale or operation of equipment prod-
ucts is expressed or implied. This warranty gives you
specific legal rights. You may have additional rights
under law, which varies from state to state.
To receive warranty service:You must write in
or call for a Return Authorization. No parts will be ac-
cepted without the serial number of the equipment the
part was taken out of and an authorization number, nor
will any credit be given until the parts are received.
Please direct questions on the warranty to an autho-
rized distributor or Dri-Eaz Products Inc. at (360) 757-
7776. If damage was sustained during shipping, be sure
to retain the shipping materials for a possible freight
damage claim.
LOCATING THE DEHUMIDIFIER

COPYRIGHT DRI-EAZ PRODUCTS, INC. 1996 4
The dehumidifier must be operated in an enclosed
area to achieve maximum efficiency. All doors, win-
dows and other openings to the outside must be closed
tightly. The dehumidifier should be placed where there
is no restriction to air flowing either into the coils at
the rear or from the front grill.
A dehumidifier operating in a specific area will
have little effect in drying an adjacent enclosed area,
such as a closet, unless there is adequate circulation of
air in and out of the adjacent area. Open interior doors
and operate Dri-Eaz TurboDryers to maintain good air
movement. Doors may need to be braced to prevent
them from closing as a result of air movement.
Caution
When operating a DrizAir dehumidifier on a hardwood
floor, it is suggested that the floor surface be protected
due to possible minor leakage from the unit.
Under normal circumstances the DrizAir 120
should be positioned centrally in the room. If, howev-
er, a particularly wet area is apparent, the air outlet
grill can be directed towards that area of the room. The
grill should never be closer than three feet from the
wall.
In the case of individual rooms being dried, all
doors and windows should be kept closed. Any traffic
through doors should be kept to a minimum.
Warning
If the unit is switched off during use, wait for five (5)
minutes before restarting. Attempting to re-start the
unit before this period of time may cause damage to
the compressor.
When drying several rooms, the units should be
placed at equal distances from one another to cover the
whole floor area. Internal doors and windows should
be left open. Try and arrange each unit to blow air
from one area into another, i.e. from a corridor into a
room.
Normally, the DrizAir 120 will be serving an inter-
nal room volume between 2,000 and 13,000 cubic feet.
In smaller rooms it will raise the internal temperature
substantially. This helps reduce the relative humidity
(Rh) and therefore assists in the drying process. It is
not recommended that the dehumidifier be operated at
ambient conditions above 100° F (38° C).
Mobility
The DrizAir 120 is equipped with a handle and
wheels to reduce the amount of lifting required to
move the unit from one location to another. The sturdy
handle and wheels allow the unit to be rolled rather
than lifted or carried. This reduces the possibility of
damage to the unit or of injury to the operator.
OPERATING CONDITIONS
The DrizAir 120 industrial grade dehumidifier is
designed to operate in cooler conditions than most
home owner units. It will operate at temperatures down
to 33° F and up to 100° F (0° - 38° C). For best opera-
tion, maintain temperatures between 70° and 80° F
(21° - 27° C).
A light coating of frost on the coil is normal when
the dehumidifier first begins to operate due to the refri-
gerant rushing through the coil. Under normal condi-
tions, it should disappear within 60 minutes. It is also
perfectly normal for frost to form on the coil when the
temperature of the room is relatively cool and/or if the
humidity in the room is relatively low.
Warning
Do not allow any water inside the unit. If electrical
components or wiring become wet, thoroughly dry be-
fore using. Do not unplug the unit while it is operating.
When the dehumidifier is first put into operation in
a saturated environment, it will remove relatively large
amounts of moisture. It will continue to do so until the
relative humidity in the area being dried is reduced to a
point where extensive humidity damage should be sig-
nificantly reduced. After this, the amount of moisture
removed from the air will be considerably less.
The decreasing amount of moisture being extracted
indicates that the dehumidifier is doing its job and that
it is maintaining the relative humidity at its best level.
The performance of the dehumidifier should be judged
by the reduction of humidity, rather than by the amount
of water being removed and deposited in the bucket.
You can check the relative humidity and the tempera-
ture with a Thermo-hygrometer from Dri-Eaz Products.
With this information, specific humidity can be ob-
tained using a Psychrometric Chart.
PRINCIPLES OF OPERATION
The DrizAir 120 dehumidifier is designed to reduce
the relative humidity by removing moisture from the
air, thereby helping to dry wet carpets, cushion, floors,
walls, contents and structural materials.
The principle of operation is that moisture laden air
is drawn through the rear of the unit and passes over
the evaporator coil. This air is cooled by the evaporator
coil, resulting in condensation forming on that coil.
This condensation builds up until water drips into the

COPYRIGHT DRI-EAZ PRODUCTS, INC. 1996 5
drainage tray and is removed through the gravity drain
hose or the automatic pump-out system.
The air then passes over the condenser coil where it is
heated to a temperature slightly above that of the room.
This heat is derived from the electrical components, the
work done by the compressor and from the latent heat
released from the condensed water. This warm dry air
is then discharged from the front outlet grill and circu-
lates around the room absorbing more water vapor be-
fore re-entering the DrizAir 120.
In order to condense water vapor into liquid, energy
must be removed. About 970 BTU's of energy must be
released by the vapor to condense one pint of water
(8000 BTU's to condense 1 gallon). This energy is re-
tained within the water vapor and is referred to as la-
tent heat.
Using the DrizAir 120, the water vapor that is con-
densed releases energy back into the atmosphere and
raises the air temperature in the room. Be aware that
operating the unit in very small, enclosed rooms may
dramatically increase the room temperature. Do not
operate the unit when the ambient air temperature ex-
ceeds 100° F (38° C).
Caution
Do not position multiple units in such a way that one
unit blows directly at another.
Drying Operation
Wet outside air is constantly passing through a
building at a rate depending on a number of factors,
including the wind pressure on the building and the
amount of air gap around doors and windows. As an
example, a typical home on average will change its air
every two to three hours. In order to dry the structure
of the building in a reasonable time, the relative hu-
midity of the air should be about 40% Rh at 70° F (21°
C). In most cases the air has to be dried artificially to
reduce it to 40% Rh. It is important that when the hu-
midity is greater than 40% outside, all doors and win-
dows are kept closed.
Defrosting
When the DrizAir 120 is operating at a room tem-
perature of 68° F (20° C) or higher, water will normal-
ly emerge from the unit. When operating at lower tem-
peratures, frost may appear on the evaporator coil in-
stead of water. An automatic control built into the Dri-
zAir 120 allows ice to build up until it starts to create
an adverse effect on air flow through the unit. During
the frost build up, no water will drain from the unit. At
low temperatures this normal ice buildup may last from
45 minutes to several hours, depending on conditions.
After a given buildup of ice has occurred, the ther-
mostat senses the associated ice temperature and in-
itiates the defrost cycle. During defrost, the fan switch-
es off and considerable quantities of water will drain
from the unit. As soon as the ice has melted, the nor-
mal fan operation will resume. The defrosting period
will last up to 10 minutes, depending upon conditions.
Periods between the defrost cycle will vary according
to operating conditions.
EXTRACTION RATES
In all dehumidification systems the extraction rates
vary with humidity and temperature. An electronic
thermo-hygrometer from Dri-Eaz Products will help in
checking for proper operation. The chart provides
some examples of extraction rates at various condi-
tions.
Water Removal Chart
Temp F / Rh Temp C / Rh Extraction
50° F / 60% 10° C / 60% 20 Pints
60° F / 60% 16° C / 60% 40 Pints
70° F / 70% 21° C / 70% 59 Pints
80° F / 60% 27° C / 60% 64 Pints
90° F / 80% 32° C / 80% 104 Pints
100° F / 90% 38° C / 90% 120 Pints

COPYRIGHT DRI-EAZ PRODUCTS, INC. 1996 6
GRAVITY FEED DRAINAGE
Water can be removed via the gravity drain hose at
the rear of the unit. The gravity drain may only be used
when there is an available container or permanent drain
point that is below the outlet point. The gravity drain
hose can also be used to remove any residual water left
behind when using the automatic pump-out system.
AUTOMATIC
PUMP-OUT SYSTEM
The DrizAir 120 can automatically pump water up
to 40 feet away (on a horizontal surface) and up to 20
feet high allowing it to pump up out of basements. Un-
like other condensate pumps, our peristaltic pump op-
erates smoothly, without water surges. Detailed infor-
mation on the pump-out system is included under the
Maintenance section.
To remove residual water left in the drip tray and
allow the unit to be moved without spilling, turn the
power switch off and leave the pump switch on. The
gravity drain can also be used to remove residual wa-
ter.
ELECTRICAL CONNECTIONS
The DrizAir 120 is equipped with a three-terminal
type grounding plug on the electrical cord. It must be
plugged into a grounded three-prong outlet. The unit is
designed to operate on ordinary household 110/120
volt, 60 Hertz alternating current. Do not under any
circumstances remove the round grounding plug from
the cord.
Danger
Removal or alteration of the grounding plug, or use of
an adapter that defeats the dehumidifier’s electrical
grounding, can create risk of serious personal injury or
fire in the event of damage to or malfunction of this
product. Do not use the dehumidifier if you cannot
connect it to a receptacle that accepts a three-pronged
plug. If you are unsure whether a receptacle is
grounded, consult a qualified electrician.
The DrizAir 120 is provided with a 14 gauge, elec-
trical cord. The unit may be operated from a grounded
110/120 volt system only. Extension cords must be
heavy enough to deliver at least 8 amps to the unit. It is
extremely important that the voltage at the unit itself, is
within a tolerance of 10% of the nominal rating. If
there is any doubt about voltage, then it should be
tested at the unit on compressor start-up.
If there is a "dip" of more than 10% from the no-
minal supply rating, then action should be taken to im-
prove the supply. Under no circumstances should the
unit be left operating. As the length of cable increases,
the voltage available at the unit decreases. The follow-
ing table provides a guide to maximum electric exten-
sion cord lengths.
Extension Cord Lengths
14 AWG for up to 25 feet
12 AWG for up to 50 feet
OPERATING INSTRUCTIONS
1. Secure the wheels on the DrizAir 120 Dehumidifier
to keep it from rolling and to ensure it remains
upright during transport. Do not drop the unit. Se-
vere impact may damage the compressor.
2. If the unit has fallen over or been tipped, set it
upright for one (1) hour before operating.
3. Operate the DrizAir 120 on a level surface only.
This will prevent the unit from flooding.
4. Plug the DrizAir 120 into a grounded 110/120 volt
outlet and switch power "ON" to start.
5. For gravity drainage, connect gravity drain hose
stored in front compartment to the rear drain outlet.
Place the drain hose into a suitable five gallon con-
tainer or floor drain below the drain outlet.
6. When using the automatic pump-out system, make
sure the pump is switched to the "ON" position.
Check to make sure that the gravity drain hose is
disconnected. Run the pump-out hose out of an
opening (door or window) or into a toilet or sink.
7. Residual water left in the collection tray after the
unit has been turned off can be removed in two
ways: 1) via the gravity drain or 2) the pump can be
turned on independent of the power switch to pump
the water from the tray.
8. If the unit is shut off for any reason, allow five mi-
nutes before restarting to avoid compressor damage.
9. Listen for proper operation of the fan and compres-
sor before leaving the DrizAir 120 operating.
MAINTENANCE
In order to maintain the DrizAir 120 at optimum ef-
ficiency and to prevent breakdown, the evaporator and
condenser coils must be cleaned regularly.
Danger
Do not attempt to service or clean the dehumidifier
while it is plugged into an electrical outlet. It is dan-
gerous for an unqualified individual to attempt to dis-
assemble or repair the dehumidifier.

COPYRIGHT DRI-EAZ PRODUCTS, INC. 1996 7
The coils are the means by which heat is transferred
to and from the air stream to the refrigeration circuit.
The coils are critically engineered in order that correct
transference takes place so the pressures within the
refrigeration circuit remain within operating limits.
The air passing through the DrizAir 120 dehumi-
difier may be carrying considerable quantities of dust,
lint and fungus spores. Even using a filter, the coils
pick up dirt and their heat transferring properties de-
crease, resulting in reduced water extraction and undue
pressure on the components.
If the unit is operating in a dusty environment both
the filter and coils will need to be cleaned more fre-
quently. For optimum efficiency, a maintenance sche-
dule should be set up for checking the coils and the
filter at regular intervals. Clean as is necessary.
Cleaning the Filter
Remove the filter from the filter shroud by remov-
ing the screw which attaches the filter shroud to the
housing. Lift bottom of filter shroud up and away from
back panel. To clean the filter, use a light vacuum or
wash with water and mild detergent. Spray directly
against the foam in the direction of the air flow. Begin
at the top of the filter and work down. Allow the filter
to drain before reinstalling.
Cleaning the Coils
The first step in cleaning the two coils is directing
compressed air, from both sides, through the coils.
Ideally, both coils should be dry and the operation be
completed outside (due to the dust that is created). Af-
ter blowing out loose contamination, a wet cleaning
process may be used.
A thorough cleaning of the evaporator coil can be
performed with an aluminum evaporator coil cleaner
available from a refrigeration service or supply outlet.
Follow the product directions carefully.
If you flush the coil, do not permit water to enter
the electrical compartment. Use a squirt bottle or a sy-
ringe so that you can control the water. Do not turn a
hose on the coil!
After cleaning the coils, ensure that the drain tray,
and drain hose are completely free of dirt. Clean the
front grill with a vacuum cleaner and brush attachment.
Danger
Do not under any circumstances remove the round
grounding plug from the cord. To do so will increase
the risk of personal injury, shock or fire.
Electrical Wiring & Cord
Inspect the power cord periodically to ensure insu-
lation is in good condition. Remove the dehumidifier
cover and control panel plate and ensure that all wires
are secured away from the fan blade. Inspect connec-
tions at the terminal block for good contact. Inspect the
wiring for abrasions, nicks or cuts. Repair or replace
the electric cord or wiring as needed. Connections that
are loose will heat up and show discoloration as a re-
sult.
Fan Motor
Carefully clean the fan motor and blade each time
you have the cover off for cleaning the coils.
Drain Hoses
Ensure that the drain hoses are not kinked and in
good condition before the DrizAir 120 leaves for the
job site and again after the installation is completed.
Avoid wrapping drain hose too tightly around hose
wrap to avoid kinking.
Peristaltic Pump
The pump-out system consists of the drip tray, tube
fittings, pump tube and the peristaltic pump. This sys-
tem should be inspected and maintained regularly to
ensure effective operation. Failure to change the tube
and properly maintain the pump will result in water
leakage, flooding of floors and may cause electrical
problems.
The pump operates by compressing a tube within a
chamber. The pump tube is compressed by rollers
which "squeeze" the condensate water through the sys-
tem. The compressive parts, the tube and rollers, are
subject to wear and can be replaced.
Maximum pump tube life can reach over 1,000
hours but a 500 hour inspection interval and tube re-
placement is strongly recommended. The parts to in-
spect are the pump body, the drive shaft, the rollers and
the tube.
Body: The cover and case should be examined for
cracks or other indications of structural failure. The
chamber should be examined for residue. As rollers
wear, a black powder (nylon dust) is deposited in the
pumping chamber.
Shaft: The pump drive shaft should be checked for
"side play". With the tube removed, the roller carriage
should not move side to side more than one 1/16th of
an inch (0.2 cm).
Rollers: The pump rollers turn on steel shafts. Rollers
must fit snugly on the shaft and spin freely. A loose

COPYRIGHT DRI-EAZ PRODUCTS, INC. 1996 8
roller will not compress the tube properly. A "frozen"
roller, which does not turn on its shaft will abrade the
tube and cause premature tube failure.
Tube: The pump tube should be replaced after 500
hours or 3 months storage. Before discarding, the tube
should be examined for abrasions and cuts. These con-
ditions can indicate wearing or malfunction of moving
parts.
Pump Tube Replacement
Please follow these steps for removal and replace-
ment of pump tubing in the DrizAir 120 Dehumidifier.
Inspect and replace tubing every 500 hours of opera-
tion.
1. Disconnect the power to the unit.
2. Open the front compartment door.
3. Disconnect the suction and discharge hoses from
the pump tube.
4. Unscrew the screws that hold the front plate of the
pump in place. Remove the front plate. The other
screws that attach the pump housing to the motor
base do not need to be removed.
5. Remove the used tubing in a "U" shaped pattern
clockwise, starting from the top left side. Discon-
nect the tube from the hose fittings.
6. Clean the roller race, removing any articles that
could damage tubing. Check the rollers for loose-
ness or binding. The rollers must fit snugly on the
shaft and spin freely. See the Troubleshooting sec-
tion for guidelines if a problem exists.
7. Insert the new tube into the inlet port, anchoring
the tube in grippers. As you insert the tube, rotate
the rollers clockwise so that the rollers follow the
tube as it is being inserted.
8. Continue to rotate the roller bracket assembly,
pushing the tube into the roller race.
9. Insert the tube into the outer port.
10. After complete installation of tube, ensure that
there is no excess tubing and that all slack is taken
up to avoid excessive wear. Re-check all connec-
tions and fittings.
11. Replace the front plate and secure with the four
screws. Run the pump to ensure correct operation.
When a new tube is installed there is an initial
break-in period before the tube "softens".

COPYRIGHT DRI-EAZ PRODUCTS, INC. 1996 9
SPECIFICATIONS
Height 32.5"
Width 19.5"
Depth 19.5"
Use Weight 104 lbs
Ship Weight 122 lbs
Compressor Rating 6670 BTU
Power Required @ 80° F / 60% Rh 6 amps
Peristaltic Pump Only 0.35 amps
Lighted Splash Guard Power Switch On/Off
Operating Range - Fahrenheit 33°-100° F
Operating Range - Celsius 0° - 38° C
Water Removal at 80° F / 60% Rh 64 pints
Water Removal at 90° F / 90% Rh 120 pints
Specifications are subject to change without notice. Some
values are approximate.

COPYRIGHT DRI-EAZ PRODUCTS, INC. 1996 10
DRIZAIR 120 REFRIGERANT DEHUMIDIFIER TROUBLESHOOTING
Caution
Troubleshooting solutions fall into two categories listed in the third column. Field Solutions (FS) are those proce-
dures that can be handled by the technician in the field. Others solutions should be handled by a repair technician and
are listed as Authorized Service Technician (AST).
WARNING: All the service procedures below should be executed with power off i.e. unplugged.
PROBLEM CAUSE SOLUTION
The dehumidifier does not op-
erate
1. No power to machine
2. Switch not turned on
FS
FS
FS
1. Plug in the unit
2. Check power at outlet
3. Turn on the switch
The compressor will not start
1. Unit turned on too soon FS
1. Switch off unit and wait 5 mi-
nutes before starting
2. Faulty or broken wire AST 2. Replace or repair broken/loose
wire
3. Overload preventing com-
pressor start up FS 3. Reduce room temperature be- low 100° F (38° C)
4. Bad compressor AST 4. Replace or repair compressor
5. Defective relay AST 5. Use Volt/amp meter to check
relay
Fan blade not turning
1. Obstructed or bent fan
blade
2. Loose fan blade nut
3. Loose or broken wire
4. Burned out fan motor
AST
FS
AST
AST
1. Remove obstruction or replace
fan blade.
2. Tighten fan blade nut
3. Replace broken wire
4. Replace fan motor
Dehumidifier operating but
room not dry
1. Not enough time to get
dry
2. Poor air movement
3. Excessive air infiltration
FS
FS
FS
1. Allow more time for drying
2. Increase air movement with
Dri-Eaz TurboDryers
3. Reduce airflow into the area
being dried
Only partial frost or moisture
on coils
1. Possible leak in system
2. Low charge in system
AST
AST
FS
1. Check for leak with gas leak
detector
2. Repair and recharge system
3. Contact distributor or Dri-Eaz
Products
No moisture or frost on coils
1. Possible leak in system
2. Capillary tubing damaged
3. Compressor not running
AST
AST
FS
1. Check for leak with gas leak
detector
2. Look for damage, replace tub-
ing
3. See Compressor Section
FOR PARTS AND SERVICE CALL YOUR LOCAL DISTRIBUTOR,
OR THE DRI-EAZ SERVICE DEPARTMENT AT [phone]

COPYRIGHT DRI-EAZ PRODUCTS, INC. 1996 11
DRIZAIR 120 DEHUMIDIFIER TROUBLESHOOTING continued
PROBLEM CAUSE SOLUTION
Unit continuously in defrost
1. Defective defrost control
2. Room temperature is too
low
3. Defective bypass relay
valve
AST
FS
AST
1. Replace defrost control
2. Increase the room tempera-
ture
3. Replace bypass valve
Unit not defrosting (heavy
frost or ice buildup that pers-
ists over several hours)
1. Defective defrost control
2. Sensor improperly located
or defective
3. Defective bypass relay
valve
AST
AST
AST
1. Replace defrost control
2. Reposition or replace sensor
3. Replace bypass valve
Little water is being collected
by the unit
1. Room air has been dried
to 45% Rh
2. Room temperature is too
low
3. Air movement through
unit restricted
FS
FS
FS/
AST
1. Check humidity with a hygro-
meter
2. Increase the room tempera-
ture
3. Increase airflow or clean out
coils
Water overflowing the tray
while using gravity drain hose
1. Unit not in level position
2. Gravity drain hose kinked
FS
FS
1. Make sure dehumidifier is
level
2. Straighten hose and remove
kinks
Pump not functioning
properly 1. Cracked or distorted
pump body
2. Excessive shaft side play
3. Worn rollers
4. Frozen rollers
AST
AST
AST
AST
1. Replace pump
2. Replace pump
3. Replace rollers
4. Replace roller shaft
Water overflowing or leaking
while using pump-out
1. Peristaltic pump switched
off
2. Peristaltic pump not func-
tioning
3. Pump tube failure or
pump roller failure
4. Unit not in level position
5. Drain hose or fittings ob-
structed or kinked
.
FS/
AST
FS
AST
FS
FS
1. Set pump switch to "on" posi-
tion
2. Inspect wiring to pump
a. Check motor for operation
b. Replace pump motor
3. Replace pump tubing
a. Replace bearings/rollers
4. Make certain unit is level
5. Clear obstruction or straigh-
ten tube
FOR PARTS AND SERVICE CALL YOUR LOCAL DISTRIBUTOR,
OR THE DRI-EAZ SERVICE DEPARTMENT AT [phone]