Pure Water Midi-classic User manual

Midi-Classic™
Operator’s Manual
3725 Touzalin Avenue • Lincoln, NE 68507 USA
Tel: [phone] • Toll Free in the USA: 800.875.5915 • Fax: [phone]
www.purewaterinc.com

Table of Contents
Important Safety Information ................................................................................ 3
Introduction ...................................................................................................................... 4
Record Important Information .............................................................................. 4
Included With Your Distiller ................................................................................... 4
Optional Accessories ................................................................................................... 5
How Your Distiller Works ......................................................................................... 6
Preparing for Installation.......................................................................................... 7
Installation
Connecting the Incoming Water Line........................................................ 8
Installing the Boiling Tank Drain Valve ................................................. 11
Connecting the Power Cord ......................................................................... 11
Installing the Storage Tank Faucet .......................................................... 11
Start-Up
Steam Sterilizing ................................................................................................. 12
Connecting the Post Filter............................................................................. 13
Maintenance and Cleaning
Overall Maintenance Requirements ........................................................ 14
Draining the Boiling Tank ............................................................................. 14
Cleaning the Boiling Tank ............................................................................. 14
Changing the Post Filter ................................................................................. 15
Steam Sterilizing ................................................................................................. 16
Cleaning the Exterior ....................................................................................... 16
Troubleshooting .......................................................................................................... 17
Electrical Schematic ................................................................................................. 21
Exploded View ............................................................................................................. 22
Parts List........................................................................................................................... 2323
2323
23
page 2 Midi-Classic Owners Manual

Midi-Classic Owners Manual page 3
Important Safety Information
♦If you are not sure that your electrical outlet is properly grounded or that the circuit
protection is correct, have it checked by a qualified electrician.
♦Operate indoors only.
♦The area MUSTMUST
MUSTMUST
MUST be well ventilated.
♦WARNING:WARNING:
WARNING:WARNING:
WARNING: Disconnect the distiller from the power supply before assembling,
adjusting or servicing the distiller.
♦NEVERNEVER
NEVERNEVER
NEVER immerse the distiller in water or any other liquid.
♦NEVERNEVER
NEVERNEVER
NEVER operate the distiller with a damaged cord or allow the cord to become
exposed to hot surfaces.
♦DO NOTDO NOT
DO NOTDO NOT
DO NOT let children play with the distiller.
♦DO NOTDO NOT
DO NOTDO NOT
DO NOT touch the top of the distiller when it is operating because it becomes very
hot.
♦Exercise care when removing the boiling tank lid and never remove it when the
distiller is operating.
♦Extension cords may be used if care is exercised in their use.
♦If an extension cord is used, (a) the marked electrical rating of the extension cord
should be at least as great as the electrical rating of the product; (b) as the product
is of the grounded type, the extension cord should be a grounding type 3-wire cord;
and (c) the longer cord should be arranged so that is will not drape over the
countertop or tabletop where it can be pulled on by children or tripped over unin-
tentionally.
♦The installation and use of this product must comply with all applicable state and
local laws and regulations.
♦IMPORTANT:IMPORTANT:
IMPORTANT:IMPORTANT:
IMPORTANT: This distiller is designed to be used only with Pure Water, Inc.
accessories and replacement components.
♦The physiological effects of the operation of this distiller, beneficial or otherwise
have not been investigated by U.L.
♦IMPORTANT:IMPORTANT:
IMPORTANT:IMPORTANT:
IMPORTANT: Only authorized Dealers and Distributors of Pure Water, Inc. may
access the electrical panel to change the FUNCTION switch from “Automatic” to
“Manual” mode.
♦Circuit Breaker; don’t use a higher amp
♦This distiller is equipped with fused pump circuitry. In the event of pump failure,
check the pump fuse located on the panel under the switches. Replace only with a
1 amp Slo-Blo fuse. Never use any fuse larger than specified.

Introduction
Congratulations on purchasing the finest home water distillation system on the market.
With proper care and attention, the Midi-Classic will give you many years of top
performance and high-quality drinking water. Please read this manual thoroughly before
installing and operating your Midi-Classic.
Record Important Information
The serial number is found on the back panel. You should record all of the information
below for future reference.
Date of Purchase:
Model:
Serial Number:
Purchased from:
Included With Your Distiller
In addition to your Midi-Classic distiller, your box will contain the following:
♦Incoming Water Hook-up. Includes:
Saddle tapping valve
Strainer
(2) 1/4” compression nuts
25 feet of 1/4” food-grade tubing
1/4”S x 1/4”T speedfit elbow
♦Post Filter. Includes:
Post filter
(2) 3/8”T x 3/8”S speedfit elbows
♦Also included:
Faucet with sight glass
Rubber washer
Drain extension tube
Drain Valve
1 foot piece of silicone tubing
Distilled water outlet plug
♦Owners Manual, Warranty Card
and Power Cord*
* power cord may not be included in some 240V units.
page 4 Midi-Classic Owners Manual
Pure Water Midi-Classic
1/4” tubing
saddle
tapping valve
comp. nuts
post filter
speedfit
elbows
faucet
extension
tube
washer
strainer
silicone tubing
drain
valve
plug
speedfit
elbow

Midi-Classic Owners Manual page 5
Optional Accessories
The following are optional accessories or maintenance items for the Midi-Classic. They
may be purchased from your Dealer or Distributor, or directly from Pure Water, Inc.
♦Demand Pump Kit, complete with a 6” lead-free faucet and tubing. To supply
water directly to a remote location. Stock #19116UL (order stock #19117UL
for the Pump Kit with an extended reach faucet.)
♦Midi-Classic Floor Stand with castors, for ease of use, cleaning and service.
Stock #42530.
♦Auxiliary hook-up kit for running distilled water to your refrigerator or icemaker.
Stock #19009.
♦Lumen™cleaner and descaler for cleaning the boiling tank. Stock #6603.
♦Stainless steel polish. Stock #6606.
♦Post-filter replacement cartridge. Stock #9406A.

page 6 Midi-Classic Owners Manual
How Your Distiller Works
The Midi-Classic is designed to produce approximately one gallon of high-quality, pure
distilled water every 3.5 hours, or almost seven gallons in a 24-hour period.
The Midi-Classic is a fully automatic unit*. The water level in the boiling tank and
storage tank are controlled by individual floats and a set of microswitches.
The boiling tank operates on a modified batch approach. Feedwater is automatically
added until a high level is reached and this triggers the heating element and fan to
operate. This begins the distillation cycle.
As the unit distills, the water level in the boiling tank falls. When the water level gets
close to the heating element, the low-level microswitch is triggered, causing feedwater to
be added until the high level is reached. If, for some reason, no water enters the boiling
tank when needed, the fan and heating element will remain off until the condition is
corrected.
Once the storage tank is full of distilled water, the unit will automatically shut down.
The Midi-Classic will begin distilling again once the water level in the storage tank
drops to approximately 3/4 full. It continues to operate until the storage tank is full
again.
The distilled drinking water is drawn from the storage tank through a faucet on the
front of the tank. An optional demand pump would allow distilled water to be delivered
to a faucet, chilled/hot water dispenser, refrigerator, icemaker or other locations as
desired.
The Midi-Classic is equipped with a Manual Drain Valve, which allows the residue from
the boiling tank to be drained periodically.
IMPORTANT:IMPORTANT:
IMPORTANT:IMPORTANT:
IMPORTANT: Only authorized Dealers and Distributors of Pure Water, Inc. may access
the electrical panel to change the FUNCTION switch from “Automatic” to “Manual”
mode.
If filling the boiling tank manually, only fill water to the bottom of the water level
indicator peg.
* The Midi-Classic can be set so the boiling tank can be filled manually. There is an
Operation Switch located on the side of the
switch tray, accessed through the electrical side
panel, see figure 1. The Midi-Classic is shipped
from the factory in the Automatic Fill Mode.
Special Feature
The Midi-Classic can
be set so you can fill
the boiling tank
manually or automati-
cally. It is pre-set for
automatic operation
at the factory.
Figure 1

Midi-Classic Owners Manual page 7
Preparing For Installation
Things to consider when installing your Midi-Classic:
♦Select an area that will allow the distiller to remain level. Improper leveling
could affect the production rate.
♦The distiller must be located in close proximity to a water supply and an
appropriate electrical supply source. The distiller should also be located in a
well ventilated room.
♦The Midi-Classic can be installed on a countertop, table or on the floor. If the
Midi-Classic is installed on the floor, it must be at least eighteen inches above
the floor. An optional stand may be purchased for this purpose. This is for
several reasons:
1. Easier position to observe, maintain, and repair.
2. Easier to catch the flow from the boiling tank when you drain the
residue water.
3. Easier to catch the water from the storage tank.
♦Electrical requirements: Isolated 115 VAC, 15 amp circuit (220 VAC, 4.5 amp).
Check the electrical rating on the label on the rear of the distiller.
♦When connecting the tubing into the quick-connect fittings, it is critical the
tubing be inserted fully! The tubing should insert into the fitting 1/2” to 3/4”.
Failure to do so could cause water damage. We recommend that prior to
inserting the tubing, you mark the tubing
1/2” from the end being inserted into the
fitting (see figure 2). After inserting, pull
back on the tubing to verify it is attached
securely. This should ensure the tubing is
properly and fully installed. Also, make
sure the tubing is cut squarely and is free
of rough edges.
♦When disconnecting tubing, push in on
the grey collet while pulling on the tubing
until it releases. See figure 3.
Note: The use of
softened water is
recommended to
minimize scale
build-up in the boiling
tank and drain valve.
Figure 2
Figure 3

Installation
CAUTION::
::
: The Midi-Classic weighs approximately 42 lbs. Please use caution when
removing it from the carton to prevent injury.
1. Open the carton.
2. Carefully lift the distiller out of the box so it remains in the upright position.
3. Remove and identify all parts kits as listed on page 4.
4. With a pliers, remove the black plug in the fitting marked “Distilled Water Outlet”. If
you are not installing a demand pump, insert the grey plug, located in the parts kit
bag, into the fitting, Pump installation information is discussed later in this manual.
5. Remove the wire tie inside the boiling tank used to restrain the float during transit.
Connecting the Incoming Water Line
Notes and Cautions:
Note: The use of softened water for the raw water supply is recommended to
minimize scale build-up in the boiling tank and drain valve.
Note: The Midi-Classic comes standard with a saddle tapping valve. In some
areas a saddle tapping valve may not be permitted. In such instances, contact
your authorized Pure Water Distributor for other water line connection options.
Note: Do not plug the unit into the power source until instructed to do so.
CAUTION: DO NOT use a hot water line for your supply line.
CAUTION: DO NOT turn the saddle tapping valve handle before or during
installation. Be sure the piercing lance does not protrude beyond the rubber
gasket. Failure to do this may result in damage to the piercing needle.
To hook-up the Incoming Water Line:
1. Locate the items in the parts kit bag as identified on page 4 as “Incoming Water
Hook-Up”.
2. Turn the household water supply OFF.
3, Remove the blue plug in the fitting marked “Raw Water Inlet”.
4. Install the 1/4” speedfit elbow onto the fitting. Pull to test. See figure 6.
page 8 Midi-Classic Owners Manual

Midi-Classic Owners Manual page 9
5a. For installation on copper pipes:
a. Assemble the saddle tapping
valve on the cold water pipe so
the outlet is in a convenient
direction. See figure 5.
b. Tighten the screws evenly so the
brackets are parallel. Tighten
firmly, but do not overtighten.
c. Connect the 25’ of 1/4” plastic
tubing to the saddle tapping
valve.
d. Cut the required length of tubing to run from the
saddle tapping valve to the distiller, but make sure
you coil a minimum of 8 feet of tubing behind the
distiller to allow it to be moved away from the wall
for cleaning or service.
e. Cut a one foot piece of 1/4” tubing off the end of
the tubing to allow the strainer to be installed.
Note: You may also use a piece of tubing that was
cut in step d.
f. Install the one foot piece of tubing into the elbow
on the Raw Water Inlet. Pull to test. See figure 6.
g. Install a 1/4” compression nut onto the tubing
coming from the distiller. See figure 7.
h. Install the tubing onto the strainer. See figure 8.
Make sure the tubing is inserted fully into the
strainer and the flow is in the correct direction.
Tighten the nut firmly.
i. Install a 1/4” compression nut onto the tubing
coming from the saddle tapping valve and connect
to the inlet stem of the strainer. Tighten firmly. See
figure 9.
j. Turn the saddle tapping valve handle clockwise
until you feel it is firmly seated. Note: You have
now pierced the water supply line and the valve is
closed.
k. Turn the handle counterclockwise to open the valve. Turn on the household
water supply and check the connections for leaks. Tighten where required.
Caution: Never use the
hot water line for your
incoming water.
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
1/4”
tubing
copper
pipe

5b. For installation on brass, steel, or PVC pipes:
Note: Make sure the water supply is turned off and drain the line. Make sure your
are using the cold water line.
a. Drill a 3/16” hole in the pipe. Use a hand drill to avoid shock hazard.
b. Turn the saddle tapping valve handle to expose the lance beyond the rubber
gasket no more than 3/16”.
c. Assemble and place the body of the valve over the hole so the lance fits into
the hole. Make sure the outlet is in a convenient direction. See figure 5.
d. Tighten the screws evenly so the brackets are parallel. Tighten firmly, but do
not overtighten.
e. Turn the saddle tapping vale handle clockwise to close the valve.
f. Connect the 25’ of 1/4” plastic tubing to the saddle tapping valve.
g. Cut the required length of tubing to run from the saddle tapping valve to the
distiller, but make sure you coil a minimum of 8 feet of tubing behind the
distiller to allow it to be moved away from the wall for cleaning or service.
h. Cut a one foot piece of 1/4” tubing off the end of the tubing to allow the
strainer to be installed. Note: You may also use a piece of tubing that was cut
in step d in the previous section.
i. Install the one foot piece of tubing into the elbow and pull to test. See figure
6.
j. Install a 1/4” compression nut onto the tubing coming from the distiller. See
figure 7.
k. Install the tubing onto the strainer. See figure 8. Make sure the tubing is
inserted fully into the strainer and the flowflow
flowflow
flow is in the correct direction. Tighten
the nut firmly.
l. Install a 1/4” compression nut onto the tubing coming from the saddle
tapping valve and connect to the inlet stem of the strainer. Tighten firmly. See
figure 9.
m. Turn the handle counterclockwise to open the valve. Turn on the household
water supply and check the connections for leaks. Tighten where required.
page 10 Midi-Classic Owners Manual