Weltem AMERICOOL User manual

Owner’s Manual
WPW-4000
Please read and save these instructions. Read carefully before attempting to assemble, install, oper-
ate or maintain the product described.
Protect yourself and others by observing all safety information. Failure to comply with instructions
could result in personal injury and / or property damage! Retain instructions for future reference.
WELTEM Water-cooled Portable Air Condioner feature spot
cooling for large areas where cooling of the enre area is not
praccal. A dedicated spot cooling thermostat controls the unit
in this applicaon.
Water-cooled air condioner does not discharge exhaust heat.
So it can also be used for room cooling. And it is space-efficient
because it doesn’t need to have hot air duct.
In addion, It can be installed by connecng water line easily
without installaon of duct.
Automac water adjust valve control condenser water flow rate
according to inlet water temperature. It helps to supply proper
condensing water to unit.
A control panel provides ease of use and contains a self-diag-
nosc funcon and display, showing operang modes, room and set temperatures and faults. If an
abnormal operaon occurs, a visual display of the fault is shown. Caster wheels are included for easy
portability. Water Hose kit of 25is allows for convenient installaon and portability. (Hose kit is sold
separately.) Suitable applicaons include : a factory or work place, industrial kitchen, emergency cool-
ing etc,
Aer unpacking the unit, carefully inspect unit for any damage that may have occurred during
transit. Check for any loose, missing, or damaged parts.
DescripƟon
Unpacking
Owner’s Manual
WPW-4000
Water Cooled Portable air Conditioner
by
WPW-4000
Figure 1

Owner’s Manual
WPW-4000
Table of Contents
SPECIFICATION...............................................................................................3
GENERAL SAFETY INFORMATION....................................................................4
ASSEMBLY.......................................................................................................6
Component Parts
Power Cord Holder
Cool Air Duct Assembly
Water Coupler
Hose Kit (Sold separately)
INSTALLATION GUIDE......................................................................................8
Moving the Unit
Plugging the Unit
OPERATION....................................................................................................9
Control Panel
MAINTENANCE.............................................................................................10
Filter Cleaning
WIRING DIAGRAM........................................................................................13
TROUBLESHOOTING ....................................................................................14
LIMITED WARRANTY.....................................................................................16
Thank you for selecng this AmeriCool by Weltem Water-cooled Portable air
Condioner. It provides you with spot cooling for large areas where cooling of an
enre area is not praccal or possible. Please read this manual before installing
the WPW-4000 as it provides important informaon that should be followed
during installaon and maintenance of the Water-cooled Portable Condioner,
allowing you to correctly set up your system for the maximum safety and perfor-
mance. Included is informaon on customer support and service, if it is required.
If you experience a problem with the unit, please refer to the Troubleshoong
secon in this manual to correct the problem. If the problem is not corrected,
please collect informaon so that the Technical Support personnel can more ef-
fecvely assist you.

Owner’s Manual
WPW-4000
SpecificaƟons
Model No. Power Supply Ph-V-Hz Cooling Capac-
ity Btu/h
Power Consump-
on Was Rated Current Amps
WPW-4000 Single Phase, 115V, 60Hz 16,000 1100 11.9
Model No. Nema Plug Power Cord
Gauge AWG
Power Cord Length
EER Btu/Wh
WPW-4000 5-15P 14 10 14
Model No. Dimensions
W x D x H - in. (mm) Weight (Net / Gross) Lbs(kg) Ambient temperature
range °F( °C)
WPW-4000
20.6 x 26.4 x 41
(523 x 671 x 1042) 185 / 201 lbs. (84 / 91 kg) 64~122 (18~50)
Model No. Condenser Water Flow
(GPM) 54 °F Inlet
Condenser Water Flow
(GPM) 74 °F Inlet
Condenser Water Flow
(GPM) 86 °F Inlet
WPW-4000 0.56 0.84 1.36
Model No. Seng temperature
(Room cool mode) °F( °C)
Seng temperature
(Spot cool mode) °F( °C)
WPW-4000 64~86 (18~30) 32~86 (0~30)
Model No. Applicaon Area
(Room cool mode) ²(m²)
Refrigerant
Type / oz(g)
Design Pressure - Hi/
Low Psig
WPW-4000 410 (38) R-410A /
21.2(600 ) 465 / 250
Model No. Indoor Air Flow
(High/Low)CFM(CMM)
Wheels
pcs / diameter
No. of Cool Air Out-
lets Pcs
Condensate tank
Gallons(Liters)
WPW-4000 470 / 400 (13.3 / 11.3) 4 / 76mm 2 3.17 (12)
Safety Devices
Compressor overload protector, An-freezing thermister,
Full drain tank switch, Automac restart (Power inter-
rupon), Compressor me delay program, High pressure
switch, Auto water adjust valve.
Features
Temperature control, Self-diagnosc funcon, Two speed
fan, Oponal drain pump kit, Washable filters, °F( °C)
display, Off-mer

Owner’s Manual
WPW-4000
General Safety InformaƟon
Please read this manual carefully for instrucons on correct installaon and usage. Please read
all safeguards.
1. Transport and store the unit in and upright posion only. Leave unit in an upright posion for
at least 3 hours before first use.
2. Always place and use in the upright posion the unit on an even, level surface.
3. Ensure the unit is connected to a grounded power supply of the correct rang / capacity.
4. The unit will cool when the room temperature is between 18°C (64.4°F) ~ 50°C (122°F) de-
pending on the thermostat seng.
5. DO NOT use this unit for funcons other than those described in this instrucon manual.
6. DO NOT lt the unit.
7. DO NOT cover or obstruct the unit’s inlet and outlet grilles.
8. DO NOT use the unit in areas where it will be exposed to rain or water.
9. NEVER unplug the while it is operang.
DO NOT use the unit in wet environments, such as a laundry room, to avoid
the risk of electrical shock.
DO NOT operate the unit in explosive or flammable environments.
10. DO NOT place any foreign objects on the unit.
11. DO NOT operate the unit with wet or damp hands.
12. DO NOT allow chemical substances to come into contact with the unit.
13. DO NOT operate the unit in the presence of flammable substances or vapors such as alco-
hols, pescides, gasoline, etc.
14. DO NOT use the plug to start and to stop the unit. Always use the control panel to start and
to stop the unit.
15. Always turn offthe unit when it is not in use and unplug the power plug from the electrical
outlet.
16. Always turn the unit offand unplug the main power plug from the electrical outlet before
cleaning, moving or performing maintenance,
17. AVOID the use of adapter plugs or extension cords. If it is necessary to use an extension
cord or an adapter plug to operate the unit, ensure that they are correctly rated for the ap-
plicaon. Consult a local qualified electrician and all local electrical codes to ensure proper
setup. Any extension cord used with this device must be rated for a minimum of 15A.
18. DO NOT unplug the unit by pulling on the electrical cord. Keep electrical cord away from
heat sources and always completely unroll the cord to avoid overheang. If the power cord
becomes damaged, a qualified service agent, qualified electrician, or similarly qualified
person must replace it, in order to avoid a hazard or shock.
DO NOT operate a unit with a damaged power cord.
19. The filters must be used with the product at all mes. When the filters are removed for
cleaning, always ensure that the unit has been turned offand unplugged from the electrical
outlet.

Owner’s Manual
WPW-4000
20. Regularly clean the filters to maintain efficiency. If the filters are not cleaned regularly, the
unit output performance and efficiency will decline and energy consumpon will increase.
21. DO NOT operate the unit with a damaged power cord or plug, aer it malfuncons, has
been dropped or damaged.
22. Only use in the upright posion on an even, flat surface. Unit must be posioned at least 24
inches (60cm) from the nearest object in air inlet.
23. DO NOT use while water leak or cut offwater.
24. If water supply volume is small, the unit is not operated properly and main component can
get damaged.
25. Stop operaon immediately if abnormal noise or odor is noced. Contact a local service
center.
26. Appliance is not used by children or persons with reduced physical, sensory or mental
capabilies, or lack of experience and knowledge, unless they have been given supervision
or instrucon.
27. Children being supervised not to play with appliance.
28. That the appliance shall be installed in accordance with naonal wiring regulaons.
29. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualified persons in order to avoid a hazard.
SAVE THESE INSTRUCTIONS.

Owner’s Manual
WPW-4000
Assembly
Component Parts
Cool Air Duct Assembly
1. Take out the cord holder from the accessory box.
2. Place the cord holder on the leside of unit.
3. Use screws (enclosed inside of accessory box with
cord holder) to install the cord holder in the unit
as shown in Figure 4.
1. Remove cool air duct assembly 2 pcs from carton.
2. Place the air duct assembly on the top front of
unit.
3. Use screws (enclosed inside of box with cool air
duct assembly) on the unit as shown in Figure 5.
Figure 2 – Front and Right Side View
Figure 3 – Back and LeŌSide View
Figure 4
Figure 5
Cool air outlet hose
Display / Control board
Guide bar for condensate water tank
Condensate water tank (Water level is
sensed, and the unit operaon is stopped
when tank is full. An alarm will be
displayed. Empty the tank and replace to
resume operaon)
Electrical access panel
Power cord holder
Water Coupler
Caster

Owner’s Manual
WPW-4000
Water Coupler
Hose kit (Sold separately; 25Ō[7.5m])
1. Take out the coupler 2pcs (female flare) from the
accessory box.
2. Female flare connects to Male flare each water inlet/
outlet on the rear of unit as shown in Figure 6.
1. Take out the hose 2 pcs from the accessory box.
INLET HOSE include a 3/4” hose barb for connecng plumbing (or
booster pump).OUTLET HOSE is just hose.
2. Connect hose and the end of coupler and e up by hose clamp as
shown in Figure 6.
NoƟce Do not switch inlet and outlet hose.
When using a hose, AVOID sharp corners, hot water pipes and inter-
rupon the water flow of supply and discharge lines.
Aer finished connecng hose, open valve of water supply and
provide water to unit.
Figure 6
Figure 7

Owner’s Manual
WPW-4000
InstallaƟon
MOVING THE UNIT
PLUGGING IN THE UNIT
Unlock the casters and push the unit using the side handles to a flat, level surface and set the
caster brakes to the locked posion.
Check the prongs and surface of the power cord plug for dust/dirt. If dust and/or dirt are pres-
ent, wipe offwith a clean, dry cloth.
Check the power cord, plug and prongs for damage or excess play.
If any damage or excess play is found, contact a qualified repair technician or a qualified electri-
cian to perform replacement or repair of the power cord, plug or prongs.
NOTE: Make sure the AC outlet is free of dirt, dust, oil, water, or any other foreign material. The
unit is equipped with an approved NEMA plug configuraon. (WPW-4000: 5-15P) The ap-
propriate outlet must be used for each plug type.
WARNINGS REGARDING PROPER LOCATION FOR INSTALLATION
Do not use the unit in explosive environments or in areas where flammable
gas leakage may occur.
Do not use the unit in areas where it will be exposed to rain or water.
Do not use the unit in a corrosive atmosphere.
Do not use the unit above 18°C(64°F) ~ 50°C(122°F).
Do not install the unit on uneven or sloping surface. The unit may roll or
topple over even if the casters are set to the locked posiƟon.
If the power cord or plug is damaged, repair should only be performed by
qualified electrical personnel.
Do not connect / disconnect the power cord or aƩempt to operate buƩons
with wet hands. This could result in electrical shock.

Owner’s Manual
WPW-4000
OperaƟon
CONTROL PANEL
1. POWER BUTTON: Acvates unit when POWER BUTTON is pressed. (Fan starts on low speed). If
power buon is pressed during operaon, unit stops.
2. BLOWER BUTTON: Changes fan speed from (Low) to (High) when pressed.
3. SPOT/COOL BUTTON: Acvates compressor and begins producing cool air 5 seconds aer but-
ton is pressed. Regulates temperature based on outlet cool air temperature.
4. ROOM/COOL BUTTON: Acvates compressor and produces cool air 5 seconds aer buon is
pressed. Regulates temperature based on inlet ambient air temperature.
5. SET TEMP BUTTONS: Change target temperature/data value by +/- 1. Change data value by +/-
10 by pressing connually. Press the SET TEMP BUTTONS to set temperature. Upper buon is
to heighten temperature and Lower buon is to lower temperture.
6. ALARM: Alarm indicator lights (blinks) and indicates abnormal system operaon. If Alarm oc-
curs, compressor stops.System operaon stops when ALARM light is acvated (blinks) longer
than 3 minutes.
7. CURRENT TEMP: Displays current room temperature in display in Fahrenheit. (In Room
Cool Mode only). SPOT/COOL Mode – Displays outlet (cool air) temperature during normal
operaons. In order to change °F to °C, press SPOT/COOL and ROOM/COOL buons together
for 2 seconds. C will blink 2 mes and Figure will change to °C. ALARM codes blink and are
displayed when abnormal operaon occurs.
NOTE: Canadian version shows the temperature in Celsius first when you turn on the unit.
8. TARGET TEMP: displays the unit set temperature for ROOM/COOL mode only.
OFF-TIMER: Enter to Timer Seng Mode if you press BLOWER Buon and SPOT/COOL Buon
together for1 seconds. Press UP/DOWN Buon to set the mer unl it shows the figure you want
to set. Aer 5 seconds,the figure will be memorized and the compressor will stop aer the me set.
AUTO RESTART: If the unit goes offdue to an electrical interrupon, the unit will automacally
restart when the power resumes.
1 2
5
3 4
6
87
Figure 8

Owner’s Manual
WPW-4000
Maintenance
FILTER CLEANING
There is 1 filter in the unit. The evaporator filter is located at the front of the unit.
1. Open the front guard.
2. Slide filter up and use a vacuum cleaner to remove the dust from the filter.
3. If the filter is heavily covered with dust and dirt, warm water and mild soap or neutral deter-
gent may be used to wash the filter. Do not use any other chemicals to clean filter, as they will
likely damage the filter.
4. Dry the filter in a shaded area before replacing it. Do not operate the unit without the filter
installed and the filter guard in the closed posion.
5. Replace the clean filter and close the filter guard.
NOTE : For effecve cooling clean the filter at least every 2 weeks.
– For your convenience, record the complete model number and product name (located on the
Product Idenficaon Plate), the purchase date, purchase locaon, serial number, and war-
ranty period in the table below.
– Also, aach your purchase receipt as proof of purchase to this instrucon manual for future
reference.
– To ensure your product is covered by warranty, the complete faulty product along with your
original purchase receipt must be provided at the place of purchase.
– To ensure your product is covered by warranty, the complete faulty product along with your
original purchase receipt must be provided at the place of purchase.
Do not operate without the filter fiƩed.
Do not operate the unit with a damaged cord or plug, aŌer the unit malfunc-
Ɵons, or if the unit has been dropped or damaged.
– Remove dust from the filter
using a vacuum cleaner
hose aachment.
– If required wash the filter in
lukewarm water with a mild
detergent. Leave to dry in
a shaded area before
reinstalling.
– Pull the filter frame forward to
remove the front filter.
– Slide filter up and use a vacuum
cleaner to remove the dust from
the filter.
– Li up on the rear filter from the
middle bar slightly and then
angle the filter outwards from the
boom and remove.
Figure 9 – Removing Filters Figure 10 – Removal of Dust

Owner’s Manual
WPW-4000
Product Portable Air CondiƟoner
Model No.
Date of Purchase
Place of Purchase
Serial No.
Period of Warranty
Customer: Please read and keep this
manual for future reference and keep
sales receipt as proof of purchase.
SPRING REPLACEMENT
SELF-DIAGNOSTIC CODES (See Table 1)
The alarm light is acvated if abnormal operaon occurs, and a code is displayed on the control
panel. The compressor and condenser fan motor will stop operang. The evaporator fan will con-
nue to run for 3 minutes. If the fault is recfied within 3 minutes, the unit will resume opera-
on. If the fault persists for more than 3 minutes, the evaporator fan also stops. The fault must
be recfied before the unit can resume normal operaon.
There are two springs on the rear of condensate water tank guide.
1. Release the screw on the spring hook.
2. Take offthe spring hook, and then pull out the opposite spring
hook from hole in the condensate water tank guide.
3. Replace with a new spring in reverse order.
4. Repeat this cycle for the other spring.
Figure 11 – The process of
spring replaccement

Owner’s Manual
WPW-4000
SELF-DIAGNOSTIC ALARM CODES
Alarm Display Problem Cause Correcve Acon
Frost prevenon
sensor and Abnor-
mal
temperature sensor
value
• Indoor heat exchanger
temperature too low
• TH3 temperature sensor
has a loose or broken
connecon
• Do not use the air
condioner if ambient
temperature is lower than
18°C (64°F)
• Contact a qualified service
agent
Refrigerant high
pressure switch
• Blocked air filter
• Ambient temperature is
too high
• Leak/cut offsupply
water
• Clean air filter
• Do not use the air
condioner if ambient
temperature is higher
than 50°C (122°F)
• Check water flow
Abnormal tempera-
ture sensor value
TH1(Outlet) temperature
sensor has a loose or
broken connecon
Contact a qualified service
agent
Abnormal tempera-
ture sensor value
TH2(Inlet) temperature
sensor has a loose or
broken connecon
Contact a qualified service
agent
Compressor over-
loaded
• Ambient temperature is
too high
• Unstable voltage
supply
• Defecve compressor
• Over current relay
defect or broken
connecon
• Do not use the air
condioner if ambient
temperature is higher
than 50°C (122°F)
• Contact a qualified service
agent
• Replace compressor
Condensate water
level alarm Condensate tank is full
• Empty the water tank
• Aer installaon of the
water tank, press the
SPOT/COOL or ROOM/
COOL buon to resume
operaon
Drain pump alarm
Drain pump defecve or
improper hose connec-
on (including kink or
blockage)
• Check the hose connec-
on and hose
• Replace drain pump
Table 1- Alarm Codes

Owner’s Manual
WPW-4000
Wiring Diagram
Figure 12 - Circuit Wiring Diagram
POWER
1P AC 115V
1P AC 208 /230V
115V220V
POWER
DRAIN
PUMP
(option)
FD FD
FD
TR

Owner’s Manual
WPW-4000
TroubleshooƟng chart
Symptom Possible Cause(s) Correcve Acon
Water leakage
High water level in con-
densate tank
1. Remove blockage from drain
hose
2. Remove any object stuc un-
deerneath of the black panel
under the water tank
The unit doesn’t work
1. Check the power supply
to verify that power is
available to the unit
1. Reset the circuit breaker and
restart the unit
2. Verify that the power
cord is connected
2. Connect power cord
No cold air flows from the
cold air outlet
1. Ambient air cannot be
properly cooled if the
filter is dirty and not
regularly cleaned
1. Clean the filter
2. Compressor will not
work if the unit is
turned offand on
quickly.
2. Wait 2 minutes aer unit is
turned offbefore turning the
unit back on.
3. The ambient air tem-
perature may be too
high
3. The temperature of the com-
pressor can be higher when
the ambient temperature is
too high. The compressor will
not work unless the ambient
air temperature is within the
acceptable operang range of
the unit
Water flow can be heard
aer compressor shuts off
No cause Common to hear coolant flowing
aer unit shuts off
Alarm displays “FT”with
less than half of condensate
water in the tank
Spring is possibly broken
Spring is possibly broken Replace a new spring
(See Maintenance page 8)

Owner’s Manual
WPW-4000
OBTAINING SERVICE
If the AmeriCool by Weltem Portable Air CondiƟoner requires Service:
1. Use the TROUBLESHOOTING secon in this manual to eliminate obvious causes.
2. Verify there are no circuit breakers tripped.
3. Call your dealer for assistance. If you cannot reach your dealer, or if they cannot resolve
the problem, call AmeriCool by Weltem Portable Air CondiƟoner Technical Support at
562.231.7175. Please have the following informaon available BEFORE calling the Technical
Support Department:
a. Your name and address.
b. The serial number of the unit.
c. Where and when the unit was purchased.
d. All of the model informaon about your AmeriCool by Weltem Portable Air CondiƟoner.
e. Any informaon on the failure, including LED’s that may or may not be illuminated.
f. A descripon of the protected equipment, including model numbers if possible.
Shipping list
Water-cooled portable air condioner 1 unit
Owner’s Manual 1 pcs
Power Cord Holder 1 pcs
Cool Air duct Assembly 2 pcs
Water coupler 1 set (2pcs)

Owner’s Manual
WPW-4000
LIMITED WARRANTY
AmeriCool warrants all AmeriCool products to be free from defects in materials or workmanship,
under normal use and service, for a period of 12 months from the date of purchase to the end
user (original invoice must be provided). AmeriCool further warrants that the compressor will be
free from defects in materials and workmanship for 36 months from the date of purchase to the
end user.
AmeriCool’s obligaon under this warranty is limited to the repair or replacement at its opon,
of any part or parts, which, upon Ameriool’s examinaon are shown to be defecve, or at Ameri-
Cool’s opon, the return of the purchase price to the purchaser.
Correcon of such defects by repair or replacement, or at AmeriCool’s opon, the return of the
purchase price shall constute fulfillment of warranty obligaons to the purchaser. This warranty
does not cover defects or malfuncons which result from causes beyond AmeriCool’s control,
including, without limitaon,(i) unusal physical or electrical stress:(ii) accident, neglect, abuse,
misuse or other abnormal use; (iii) failure to perform roune maintenance in accordance with
AmeriCool’s recommended procedures; (iv)normal wear and tear; (v) repairs or aempted repairs
by an unauthorized person; (vi) modificaons or alteraons to the Products; (vii) use with parts or
devices not supplied or approved by AmeriCool (viii) improper installaon or service; (ix) shipping
damage to any units or spare parts during shipping. This includes and is not limited to compres-
sors, evaporators and condenser coils. This warranty shall extend only to the original end-user and
shall be void if any labels or other idenfying marks permanently affixed to Products when shipped
by AmeriCool are removed, altered, defaced or obliterated.
TO THE EXTENT PERMITTED BY LAW, THIS WARRANTY, AS LIMITED HEREIN, SHALL BE IN LIEU OF
AND EXCLUSIVE OF ALL OTHER WARRANTIES, EITHER EXPRESSED OR IMPLIED, ON THE PART OF
AMERICOOL INC., OR WELTEM CO.,LTD. WHETHER ARISING FROM LAW, COURSE OF DEALING, US-
AGE OF TRADE, OR OTHERWISE, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTY OF
MERCHANT-ABILITY OR FITNESS OF A PARTICULAR PURP OSE OR ANY LIABILITY FOR COMMERCIAL
LOSSES BASED UPON NEGLIGENCE OR MANUFACTURER’S STRICT LIABILITY. EXCEPT AS EXPRESSLY
PROVIDED HEREIN,NEITHER AMERICOOL, INC., NOR WELTEM CO., LTD. WILL, IN ANY EVENT, BE
LIABLE FOR LOST PROFITS, COSTS OF PROCESSING,INJURY, GOODWILL, OR ANY OTHER CONSE-
QUENTIAL DAMAGES OF ANY KIND ARISING FROM BREACH OF THIS WARRANTY.
printed in April, 2013
Manufactured in Weltem Co., Ltd.,
973-5, Yangdeok-dong, Masanhoewon-gu, Changwon-City, Gyeongnam,
Republic of KOREA 630-728 www.weltem.com
Distributed by Americool,Inc. In the USA (Tel.[phone])
WWW.AMERICOOLINC.COM