Weltem WPW-4000 User manual

1
WPW-4000Owner’s 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-e cient
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  ow 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.
Descrip on
Unpacking
Owner’s Manual
WPW-4000
Water Cooled Portable air Conditioner
WPW-4000
Figure 1

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WPW-4000Owner’s Manual
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
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)

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WPW-4000Owner’s Manual
Specicaons
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 /
20.5(580) 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 lters, °F( °C)
display, O-mer

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WPW-4000Owner’s Manual
General Safety Informaon
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 rst 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 ammable 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 ammable 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 o the unit when it is not in use and unplug the power plug from the electrical
outlet.
16. Always turn the unit o and 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 qualied 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 qualied service agent, qualied electrician, or similarly qualied
person must replace it, in order to avoid a hazard or shock.
DO NOT operate a unit with a damaged power cord.
19. The lters must be used with the product at all mes. When the lters are removed for
cleaning, always ensure that the unit has been turned o and unplugged from the electrical
outlet.

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WPW-4000Owner’s Manual
20. Regularly clean the lters to maintain eciency. If the lters are not cleaned regularly, the
unit output performance and eciency 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, at 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 o water.
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 qualied persons in order to avoid a hazard.
SAVE THESE INSTRUCTIONS.

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WPW-4000Owner’s Manual
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 Le Side 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

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WPW-4000Owner’s Manual
Figure 7
Connection of inlet / Outlet hoses
When using a hose, AVOID sharp corners, hot water pipes and
interruption the water flow of supply and discharge lines.
After finished connecting hose, open valve of water supply and
provide water to unit.
1. Take out the hose 2 pcs from the accessory box (17ft each).
2. Connect the hoses carefully not to switch inlet and outlet hoses
IN OUT

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WPW-4000Owner’s Manual
Installaon
MOVING THE UNIT
PLUGGING IN THE UNIT
Unlock the casters and push the unit using the side handles to a at, 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 o with 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 qualied repair technician or a qualied 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 congura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 ammable
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 posion.
If the power cord or plug is damaged, repair should only be performed by
qualied electrical personnel.
Do not connect / disconnect the power cord or aempt to operate buons
with wet hands. This could result in electrical shock.

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WPW-4000Owner’s Manual
Operaon
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.
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 gure you want
to set. Aer 5 seconds,the gure will be memorized and the compressor will stop aer the me set.
AUTO RESTART: If the unit goes o due to an electrical interrupon, the unit will automacally
restart when the power resumes.
1 2
5
3 4
6
87
Figure 8

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WPW-4000Owner’s Manual
Maintenance
FILTER CLEANING
There is 1 lter in the unit. The evaporator lter is located at the front of the unit.
1. Open the front guard.
2. Slide lter up and use a vacuum cleaner to remove the dust from the lter.
3. If the lter is heavily covered with dust and dirt, warm water and mild soap or neutral deter-
gent may be used to wash the lter. Do not use any other chemicals to clean lter, as they will
likely damage the lter.
4. Dry the lter in a shaded area before replacing it. Do not operate the unit without the lter
installed and the lter guard in the closed posion.
5. Replace the clean lter and close the lter guard.
NOTE : For eecve cooling clean the lter at least every 2 weeks.
– For your convenience, record the complete model number and product name (located on the
Product Idenca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 lter ed.
Do not operate the unit with a damaged cord or plug, aer the unit malfunc-
ons, or if the unit has been dropped or damaged.
– Remove dust from the filt
er
using a vacuum cleaner
hose aachment.
– If required wash the filter i
n
luk
ewarm 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