•Remove/Replace Cold Temperature Switch and Sensor
•Sanitization Procedure
•Trouble Shooting
•PWC-1010 Version
•Specifications
•Cooler Exploded View
•Parts List
•Schematics
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
PWC-1000 Cooler
1. Introduction
The PWC-1000 line of point of use coolers are designed to give years of reliable service
The cooler has 2 spigots that dispense filtered water at 2 different temperature levels – hot
and cold temperature water. The main (cold-temp) tank holds one gallon of water and is
constructed of stainless steel. The cold tank can be accessed for servicing the float
mechanism and for cleaning by removing the cooler main top cover (see section 4).
The hot tank is made of stainless steel and holds ½ gallon. It is important not to turn on the
hot tank when there is no water in it as this will damage the heating element.
The compressor is a sealed unit and is not serviceable in the field. The compressor can be
replaced by a qualified refrigeration technician with proper tools and equipment.
Please consult the factory if the compressor needs servicing.
CAUTION: If the compressor has been stopped by switching it off or unplugging power,
WAIT 10 MINUTES before turning the compressor on again. The compressor may stall
and burnout if powered back on without waiting.
The cooler makes clean water by filtration or by the reverse osmosis process. Water enters the
back of the cooler and then passes through the filtration system. A feed water ball valve is
Located near the filters and must be turned to the on position to allow the unit to make water.
Electrical power is not required for the cooler to make purified water. CAUTION: The carbon
filtration versions of the cooler (PWC-1000F) should not be used with water hardness over
7 grains because of lime scale build up on the heating element. If hardness is higher than
7 grains, softening of the feed water is recommended or another option is to install
a “phosphate” filter to the filter system.
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
2. Cooler Set-Up (for new cooler installation)
Feedwater/Drain Connections
-Feed Connection
2.1 Open hinged door to access filter
compartment
2.5 Remove feed water plug (orange) from back
of cooler.
2.6 Connect supplied orange feed water tubing to
feed connector on back of cooler.
Copyright 2006 Vertex Water Products
PWC – 500/1000/10101500
PureWaterCooler
2. Cooler Set-Up cont.
2.4 Make feed water connection to cold water line.
A self piercing saddle valve is provided.
2.5 Flushing carbon fines from carbon filter.
Most carbon filters have fine particles of
carbon material in the filter that will be
swept into the water stream when the first
water flows through the filter. Although not
harmful, these carbon fines in the water are
unsightly. Flush the carbon fines out of the
filter before filling cooler tanks with the
following procedure.
Feedwater connection (RO & filtration coolers
(For use on copper tubing)
Use supplied self piercing saddle valve.
Connect to water inlet on cooler using 1/4”
tubing. Clamp saddle valve over copper feed
water line (cold water line on ly). Tighten
needle valve until tube is pierced. Ret ra ct
needle 1 -2 turns to start water f lo w.
)
2.6 Remove outlet line of carbon filter (bottom)
2.7 Attach 3 feet of ¼” tubing to the carbon filter
outlet port (flush tubing)
2.8 Place flush tubing in bucket to catch water
carbon fines.
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
2. Cooler Set-Up cont.
2.9 Turn on feed water at source and turn ball valve
at filter to “on” to let the water flush the filter.
2.10 Flush until water flows clear (1 – 2 gallons)
2.11 Remove flush line. Reconnect tank line to
outlet of carbon filter
2.12 WARNING: Do not turn on cooler hot power
until cooler tanks are full of water.
-Drain Connection
2.9 Drain Connection (for units equipped
with RO)
2.10 Remove drain plug (black) from back of
cooler
2.11 Connect supplied black water tubing to
drain connector on back of cooler
2.12 Attach supplied drain saddle to a
standard 1 ½” drain pipe see fig. 1 below
Figure 2.7
Drain saddle connection method
Drain connection required only for cooler with reverse osmosis filtration
Figure 1
Copyright 2006 Vertex Water Products
RO filter set showing autovalve.
The autovalve automatically turns off the
water flow when the tanks are full
PWC – 500/1000/1010/1500
PureWaterCooler
3. Top Cover Removal
3.1 Remove (2) screws on back of cooler top cover
3.2 Lift cover
3.3 Cold tank is now accessible for cleaning
and servicing other parts of the cooler.
3.4 Reinstall in reverse order
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
4. Remove/Replace Mechanical Float Valve Assembly
4.1 First, remove top cover. See Section 3
Float Valve/Level Control
4.2 Disconnect tubing from fitting
4.2 Remove elbow connector from float stem
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
4. Remove/Replace Mechanical Float Valve Assembly
continued
4.3 Remove nut holding float assembly to tank
4.5 Lift out float assembly
Fitting Nut washer Float
Float Assembly Parts
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
5. Removing/Replacing Hot Tank
5.0 Unplug power from wall
5.1 Drain water from cooler using front
spigots and by removing rear drain plug
5.2 Remove top cover (section 3)
REMOVE FRONT PANEL
5.3 Remove 2 top screws from front of panel
5.4 Remove 2 screws from bottom of panel.
5.5 Remove 2 screws from back side of front
panel. Requires extra long Phillips-head
screwdriver.
5.6 Hold front panel
in hand.
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
•Removing/Replacing Hot Tank
Cont.
5.7 Disconnect electrical connector at circuit board.
5.8 Hot tank is now accessible
5.9 Remove silicon tubing – 4 places
5.10 Disconnect 2 electrical connectors at bottom
of tank
5.11 Remove (1) hot tank screw from below
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
•Removing/Replacing Hot Tank
5.12 Remove (1) hot tank screw from above.
Cont.
5.13 Pull hot tank down
5.14 Disconnect (4) electrical connectors
from hot tank temperature sensors.
5.15 Hot tank can now be removed.
5.16 To replace the hot tank, reverse the
above procedure.
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
•Dispensing Faucet Repair
6.1 Remove top cover of cooler (section 3)
6.2 For most faucet problems, the working mechanism
of the faucet can be replaced without having to remove
the entire faucet from the cooler. The faucet body
is a one piece molded plastic part that usually does
not need replacing.
6.3 To remove the working mechanism of the faucet, reach
in from the top and unscrew the top nut of the faucet
mechanism.
6.4. Lift out the faucet mechanism from the faucet body.
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
•Faucet Repair
6.4 Lift out the lever assembly. Obtain a new
lever assembly and install in the faucet
base. Hand tighten the lever assembly
securely.
6.5 Fill the cooler with water and check for leaks
Cont.
(shown with front panel removed)
Note:
When removing and replacing the lever assembly,
make sure the rubber seal and the lever are
connected together. To connect the seal to the lever
assembly, firmly push the seal on to the
button on the lever assembly.
6.6 Reinstall the top panel.
Button Seal
Correctly connected seal/lever assembly
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
7. Hot Tank Reset Button
7.0 Observe that there are two circular sensors
attached to the hot tank. The lower one is the
main controller at 82 ºC and the upper senor
is the over-temp cut off.
The power switch for the hot tank (at the back
of the cooler) should not be turned on until
water can be dispensed from the hot spigot. If
the hot power is turned on without water in the
hot tank the heating element will over heat. To
prevent this, the upper thermal sensor on the
hot tank will cut power to the heating element
before any damage takes place. If this happens
the switch on the thermal sensor can be reset to
operational mode manually by the following
procedure.
7.1 Make sure the power cord is unplugged.
7.2 From the back of the cooler, find the hot tank
7.3 Find the upper thermal sensor on the hot tank
7.4 Using a long thin object such as a screw driver
or a pen, depress the small black button at the
center of the upper thermal switch. You should
feel a click when you depress the button. This
action resets the over-temp sensor.
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
8. Remove/Replace Thermal Sensor
8.0 The hot tank thermal sensors are located
on the outside of the hot tank. There are
two thermal sensors. The sensor located
lower on the hot tank controls the daily
operation of the heating element. The
upper thermal sensor is an overheat
safety switch and cuts power to the hot
tank should a malfunction occur and
the tank starts to overheat.
8.1 Unplug cooler from power source for
this operation.
8.2 Remove (2) screws holding the upper
part of the cooling grill to the cooler
cabinet. Keep the rubber grommets
for reassembly.
8.3 Carefully pull the cooling grill away
from the cooler. The grill is still attached
at the bottom. Do not move the grill
more than 30 degrees away from the
cooler frame or the cooling system may
be damaged.
30 degrees
Max
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
•Remove/Replace Thermal Sensor
cont.
8.4 There are (2) thermal sensors attached with
screws to the hot tank. The lower sensor auto matically turns the heating element on and off
to maintain the water at 180 ºF. The upper
sensor is the over temperature sensor. This
sensor activates if the temperature on the tank
goes over 212 ºF. If this sensor is activated due
to a overheat condition, it will cut the power to
the heating element. If this happens, it can be
reset by pressing the button at the center of
the sensor.
To check if either thermal sensor is good, use a
continuity tester (ohm meter) to check for
continuity across the thermal sensor. Make
sure the thermal sensor is at ambient temperature
for this test. If there is no continuity, replace
the sensor.
8.5 To change either sensor, disconnect (2)
electrical terminals from sensor.
8.6 Remove (2) screws holding sensor to tank.
8.7 Install new thermal sensor, replace screws,
reconnect electrical terminals to sensor.
8.8 Carefully relocate cooling grill to original
location and re-attach using rubber grommets
and screws.
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
9. Cold Tank Temperature Adjustment
9.0 The cold water temperature adjustment
is located on the back of the cooler on
the right side. An expansion tube senses
temperature in the cold tank and open
and closes the thermostat.
9.1 The cold adjustment is a shaft with a
screw driver slot on the end.
9.2 To make the water colder, using a
screw driver, rotate the shaft clockwise.
For warmer water rotate the shaft
counter clockwise. There are stops on
the adjustment shaft. DO NOT force
the control shaft over the stop. If this
happens, it will be necessary to replace
the temperature controller
270º Travel
STOP
WARMEST
COLDEST
STOP
Normal Travel is 270º
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
10. Draining Cooler Tanks
Completely draining the tanks is required when shipping the cooler
or when one the of the tanks needs replacing. This procedure will
allow you to remove all the water from the cooler.
9.0 Hot and Cold Tank Drain: Using a flat head
screw driver, pry the hot tank plug out until
you can grasp it with your fingers.
9.1 Remove the plug with fingers.
Water will pour from the port
9.2 Drain any remaining water in the
system by depressing the faucets.
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
11. Remove/Replace Cold Tank Sensor
11.0 The cold tank sensor is extremely reliable
and rarely needs replacing. Its function
is to control the cold water temperature by
turning the compressor on or off as needed.
11.1 Remove the top cover of the cooler (sec. 3)
11.2 Remove the float assembly )sec. 4)
11.3 Remove the silicon rubber sealing ring
11.4 Remove the silicon over flow tube
11.5 Carefully lift off the insulting foam
from the cold tank
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
•Remove/Replace Cold Tank Sensor
11.6 Cold tank cooling coils and sensor probe
are now visible
cont.
11.7 Disconnect (2) wires from sensor switch
11.8 Remove (2) screws holding sensor switch
body to cooler cabinet.
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
•Remove/Replace Cold Tank Sensor
11.9 Remove cold sensor switch and sensor tube
from cooler
cont.
11.10 To remove the sensor tube, carefully pull the
sensor out of the copper tube at the bottom
outside of the cold tank
11.11 With new cold sensor, carefully install sensor
tube into copper tube at bottom of cold tank.
11.12 Install the sensor switch using (2) screw to
cooler cabinet.
11.13 Adjust sensor tube so it is routed close to the
outside of the cold tank. This will allow the
insulating foam to fit properly over the tank.
11.14 Reinstall insulating foam.
11.15 Reinstall remaining parts in reverse order.
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
12. Sanitization Procedure
The sanitization procedure is performed to reduce/eliminate any bacteriological
growth in the cooler tanks and dispensing plumbing. Bacteriological growth
can be the cause of some taste and odor in the water.
The procedure is as follows:
•Mix 1 teaspoon of common household bleach (5.25%) in 2 gallons of
clean water.
•Unplug the cooler from the power source.
•Drain all water from the cooler tanks.
•Pour the sanitizing solution into the main (cold temperature) tank until full.
•Open all spigots to allow sanitizing solution to fill the dispensing faucets.
Close the spigots.
•Let the sanitizing solutio n stand in the cooler for 10 minutes.
CAUTION: Leaving the sanitizing solution in the cooler for more
than 10 minutes can cause taste problems in the water.
•Completely drain the sanitizing solution from all the tanks per section 10
•Fill the main (cold temp.) tank with clear tap water to rinse out the
sanitizing solution.
•Completely empty the rinse water from the tanks.
•The cooler is now sanitized and ready for filling with filtered water.
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
13. Trouble Shooting
Water not cold from cold tank
(Water dispenses from spigot but is not cold)
Possible causes
Solution .
1. Cooler not plugged in Make sure power cord is plugged
into wall socket
2. Power switch not on Make sure cold power switch on
the back panel is on.
3. Adjust temperature control The thermostat temperature control
adjustment is located on the back
of the cooler. (see section 9)
4. All cold water has been drained Cooler needs time to recover.
wait 10-15 minutes until water cools
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
13. Trouble Shooting
Cont.
No Hot Water from Hot Tank
Possible CausesSolution
1. Cooler not plugged inMake sure power cord is plugged
into wall socket
2. Power switch not onMake sure Hot power switch on back
panel is on and hot power light on
front is illuminated
3. Electrical terminal Check to see that both wires are
disconnectedconnected to the heating element
terminals. These are located at the
bottom of the hot tank
4. Heating element failureCheck for continuity across hot tank
due to scalingheater terminals. To do this, unplug
unit from wall power. Disconnect one
of the connector at the heating element
terminals (at bottom of tank). Using
an ohm meter, check for continuity
across the 2 terminals. If there is no
continuity (open), the tank must be
replaced.
Copyright 2006 Vertex Water Products
PWC – 500/1000/1010/1500
PureWaterCooler
13. Trouble Shooting Cont.
No Hot Water from Hot Tankcont.
Possible causes Solution .
5. Thermal sensor failureThe thermal sensors are attached to the
hot tank. The upper sensor is a 96 ºC
sensor and functions as an over heat
safety. The lower sensor is a 82 ºC
sensor and controls the heating element
function. The lower sensor would be the
problem if there was no hot water. To
see if the sensor is functioning properly,
first unplug the cooler from the wall.
remove the terminal from the sensor.
Using an ohm meter, check for continuity
If there is no continuity (open), replace
sensor
as per section 8.
6. Hot tank turned on withoutThe hot power should never be turned on
water in tank without water in the tank. If this happens,
the upper thermal sensor on the hot tank
will switch, cutting power to the hot tank.
This is a safety device to prevent the heating
element from burning itself out due to dry
heating. Once the hot tank cools off the
switch can be reset to operating condition.
See section 7.
Copyright 2006 Vertex Water Products
Trouble Shooting Cont.
No Hot Water from Hot Tankcont.
An indicator of a hot tank problem can also be the lights on the front
control panel. Below is a table of trouble shooting help.
If the Hot Tank is not he ating and the front panel lights are:
Front Panel Lights
Hot Power – onHeating element disconnectedNo Continuity across
Heating - onor burned outheating element -
No lights at allUpper thermal sensor Reset Press reset button /
Hot Power – onLower thermal sensor No Continuity across
Heating - off disconnected or burned outthermal sensor - replace
Cause Check
Replace Hot Tank
button disengaged or sensor NO Continuity across
burned out thermal sensor -replace
sensor
sensor
PWC – 1000/1010
PureWaterCooler
The model PWC-1010 has room and cold temperature water dispensed from the
two spigots. Nearly all functions and construction of the PWC-1010 cooler are
the identical to the PWC-1000 (hot and cold) cooler except as follows:
1. There is no heating element in the room temperature holding tank
2. There are no power switches on the back of the cooler
3. The cold power (compressor) turns on as soon as the cooler is plugged in.
4. The indicator lights on the front of the cooler show when there is power
to the compressor (cold power) and when the compressor is on (cooling).
14. Model PWC-1010
All repair sections of this manual apply to the model PWC-1010 cooler. To
remove and replace the room temperature tank refer to the section covering the
hot tank in this manual (section 5).
Copyright 2006 Vertex Water Products
PWC – 1000/1010
PureWaterCooler
15. Specifications
PWC-1000PWC-1010
Voltage/Frequency120 VAC/ 60 Hz120 VAC/ 60 Hz
Weight (dry)48 lbs. 48 lbs.
Total Water Capacity1.5 gallons 1.5 gallons
Hot tank .5 gallons
Cold tank1.0 gallons1.0 gallons
Room tank .5 gallons
Power Consumption Total600 Watts100 Watts
Hot Tank500 Watts
Cold Tank100 Watts100 Watts
Room Tank 0 Watts
Temperature
Hot180 ºF average
Cold (adjustable) 38 ºF average 38 ºF average
RefrigerantR134a 36 mg. R134a 36 mg.
Copyright 2006 Vertex Water Products
S
e
d
i
m
e
n
t
C
a
r
b
o
n
To Cooler
Tanks
Feed Water In
PWC-1000F/1010F Filtration Configuration
Flow restrictor
In line here
p/n ifa-4034
p/n ifa-4035
S
e
d
i
m
e
n
t
C
a
r
b
o
n
M
e
m
b
r
a
n
e
p/n avqc-1303
Autovalve
To Cooler
Tanks
Drain
Feed Water In
Clean Water
PWC-1000R/1010R RO Filtration Configuration
Bulkhead Fitting
Out
In
p/n mhsa-1103
(membrane housing)
p/n ma-4203
(membrane element)
p/n ifa-4035
p/n ifa-4034
brown
Cold thermostat adjustment
Compressor
Cold switch
Wiring Diagram
For PWC-1000 Cooler
Dwg. No.
CL1-10001
Used on.
PWC-500-1500
Scale
Date
None
10/10/05
blue
VERTEX
Water Products
Montclair, California
Hot Tank
Thermal Sensors
96
o
C
82
o
C
yellow
Fuse
Hot switch
blue
red
red
red
white
white
white
yellow
yellow
yellow
Circuit board/
Indicator panel
yellow
PWC-1000 Parts List
Item No. DescriptionPart NumberPriceItem No. DescriptionPart Number Price
1Top Covercl1- 920030Silicon Vent "T"cl1- 9225
2-1Dust Covercl1- 920131Silicon Tube Straight 250 x 2cl1- 9226
3Upper Front Panelcl1- 920232Silicon Tube Elbow 160 x 4cl1- 9227
4Lower Front Doorcl1- 920333Silicon Tube Elbow 50 x 60 x 4cl1- 9028
5Basecl1- 920434Hot Tankcl1- 9029
6Drip Tray Basecl1- 920535
7Drip Traycl1- 920636
8Hot Tap w/Safetycl1- 920737Silicon Tube Elbow, 175 x 4cl1- 9230
9Cold Tapcl1- 920838Screw, 3 x 8cl1- 9231