Vertex PWC-7000 Service Manual
PWC – 7000
PureWaterCooler
SERVICE MANUAL
for
PureWaterCooler
by Vertex
Model 7000
™
Copyright 2012 Vertex Water Products
PWC – 7000
PureWaterCooler
Table of Contents
1. Introduction
2. Cooler Set-up
3. Top Cover Removal
4. Remove/Replace Mechanical Float Valve Assembly
5. Removing/Replacing Control Panel and Circuit Board
6. Remove/Replace Hot Tank
7. Remove/Replace Spigot Internals
8. Draining Cooler Tanks
9. Remove/Replace Hot Tank Sensor
10. Remove/Replace Cold Temperature Switch and Sensor
11. Sanitization Procedure
12. Trouble Shooting
13. Specifications
14. Cooler Exploded View
15. Parts List
16. Schematics
Copyright 2012 Vertex Water Products
PWC – 7000
PureWaterCooler
PWC-7000 Cooler
1. Introduction
The PWC-7000 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 cold tank holds 1.1 gallons of water and is
constructed of stainless steel. The main (room-temp) tank holds 4.4 gallons of water and can
be accessed for servicing the float mechanism and for cleaning by removing the cooler main
top cover (see section 3).
The hot tank is made of stainless steel and holds 1.0 gallons. 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-7000F) 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 2012 Vertex Water Products
PWC – 7000
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 2012 Vertex Water Products
PWC – 7000
PureWaterCooler
2. Cooler Set-Up
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.
cont.
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 only). Tighten
needle valve until tube is pierced. Retract
needle 1 -2 turns to start water flow.
)
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 2012 Vertex Water Products
PWC – 7000
PureWaterCooler
2. Cooler Set-Up
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
cont.
Figure 2.7
2.11 Connect supplied black 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
Drain saddle connection method
Drain connection required only for cooler with reverse osmosis filtration
Figure 1
RO filter set showing autovalve.
The autovalve automatically turns off the
water flow when the tanks are full
Copyright 2012 Vertex Water Products
PWC – 7000
PureWaterCooler
3. Top Cover Removal
3.1 Remove (2) screws on back of cooler top cover
3.2 Lift cover
3.3 Lift Lid
3.4 Room tank is now accessible for cleaning
and servicing other parts of the cooler.
3.5 Reinstall in reverse order
Copyright 2012 Vertex Water Products
PWC – 7000
PureWaterCooler
4. Remove/Replace Mechanical Float Valve Assembly
4.1 Remove top lids from cooler as
performed in Section 3.
Remove Black Screws (4)
4.2 Remove Silver Screws (2)
4.3 Remove Back Panel
Copyright 2012 Vertex Water Products
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