Vertex PureWaterCooler PWC-400 User manual

PWC – 400
PureWaterCooler
Copyright 2008 Vertex Water Products
SERVICE MANUAL
for
PureWaterCooler™
by Vertex
Model PWC-400
P/N man-xxxx

PWC – 400
PureWaterCooler
Copyright 2008 Vertex Water Products
Table of Contents
1. Introduction
2. Cooler Set-up
3. Remove Top Cover/Side Cover
4. Remove/Replace Float
5. Remove/Replace Hot Tank
6. Dispensing Solenoid – Remove/Replace
7. Circuit Board – Remove/Replace
8. Front Panel – Remove/Replace
9. Hot Tank Reset Button
10. Remove/Replace Hot Tank Thermal Sensors
11. Cold Temperature Adjustment
12. Sanitization Procedure
13. Trouble Shooting
14. Specifications
15. Cooler Exploded View
16. Parts List

PWC – 400
PureWaterCooler
Copyright 2008 Vertex Water Products
PWC-400 Cooler
1. Introduction
The PWC-400 line of point of use counter-top coolers are designed to give years of reliable
Service. The cooler has a single spigot that dispenses filtered water at 2 different temperature
levels – hot and cold temperature water. The main (cold-temp) tank holds 3/4 gallons of water
and is constructed of FDA approved plastic. 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 1/4 gallon of hot water. 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 required for the cooler to make purified water. CAUTION: The carbon
filtration versions of the cooler (PWC-400F) 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.

PWC – 400
PureWaterCooler
Copyright 2008 Vertex Water Products
Feedwater/Drain Connections
-Feed Connection
2.1 Remove 2 screws on back of right side panel
and remove right side panel.
2.2 Remove feed water plug (orange) from back
of cooler.
2. Cooler Set-Up
(for new cooler installation)

PWC – 400
PureWaterCooler
Copyright 2008 Vertex Water Products
2.3 Connect supplied orange feed water tubing to
feed connector on back of cooler.
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
2.6 Remove outlet line of carbon filter (bottom)
2. Cooler Set-Up cont.
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.
Feedwater connection (RO & filtration coolers
(For use on copper tubing) )

PWC – 400
PureWaterCooler
Copyright 2008 Vertex Water Products
Drain saddle connection method
Drain connection required only for cooler with reverse osmosis filtration
Figure 1
2. Cooler Set-Up cont.
Figure 2.7
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
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 (for units equipped with RO)
2.13 Remove drain plug (black) from back of cooler
2.14 Connect supplied black water tubing to
drain connector on back of cooler
2.15 Attach supplied drain saddle to a
standard 1 ½” drain pipe see fig. 1 below

PWC – 400
PureWaterCooler
Copyright 2008 Vertex Water Products
3.1 Remove (2) screws on back of cooler top cover
3.2 Slide cover back and lift off.
3.3 Cold tank is now accessible for cleaning
and servicing other parts of the cooler.
3.4 Reinstall in reverse order
3. Top Cover/Side Panel Removal

PWC – 400
PureWaterCooler
Copyright 2008 Vertex Water Products
3.5 Remove (2) screws on back of cooler side cover
3.6 Slide side cover back about half way off until
tab in side cover lines up with slot in cooler
frame.
3.7 Once slot and tab are lined up, pull side cover
away from cooler.
3.8 Reinstall in reverse order
3. Top Cover/Side Panel Removal
Cont.

PWC – 400
PureWaterCooler
Copyright 2008 Vertex Water Products
4. Remove/Replace Electro/Mechanical Float Assembly
4.1 Remove top cover (See section 3)
4.2 Remove tubing from top of cold tank
4.3 Remove screws from lid of cold tank. (6 plcs)
4.4 Remove outer lid of cold tank

PWC – 400
PureWaterCooler
Copyright 2008 Vertex Water Products
4. Remove/Replace Electro/Mechanical Float Assembly
4.5 Disconnect electrical connector
4.6 Lift off inner lid of cold tank
4.7 To remove float, remove nut from float stem
4.8 Remove float assembly from inner lid.
4.9 Reinstall in reverse order.
cont.