Hoshizaki MODwater Series User manual

TM
Model:
Water Dispenser

DURING INSTALLATION, KEEP THE PLUGS (STEMS) INSIDE BOTH COLD AND HOT DRAINS
Cold and hot water drains should ONLY be unplugged before transporng your MODwater dispenser.
DO NOT FLUSH FILTERS THROUGH THE DWM-20A DISPENSER
Flush or wash the filters with a separate line. Flushing the filters through the dispenser may cause the
internal valves to be compromised and fail. Your warranty will be invalidated.
Contents····························································································································
1
Installaon Kit Contents····································································································· 3
Product Specificaons········································································································ 4
Safeguards························································································································· 6
Instrucons························································································································ 7
Installaon
Water Supply Connecon··································································································· 8
Carbon Dioxide Connecon (CO Tank)···········································································
210
CO Tank Replacement·······································································································
211
Starng Up ························································································································ 12
Operaon
Manual Dispensing············································································································· 29
Drain Pan··························································································································· 31
Maintenance
Cleaning and Sanitaon······································································································ 32
Electrical System················································································································ 41
Transporng and Relocang······························································································· 42
Technical Support
Quick Fixes························································································································· 43
Troubleshoong················································································································· 44
Leak Detector Troubleshoong··························································································· 46
Support······························································································································ 46
COOLING FANS
CHILD SAFETY SWITCH
HOT WATER ON&OFF SWITCH
MAIN POWER IN
MAIN POWER SWITCH
POWER RESET BUTTON
COLD WATER DRAIN
MAIN CO₂ LINE IN
MAIN WATER LINE IN HOT WATER DRAIN
DRIP PAN DRAIN
FILTER RESET BUTTON
PORT B
PORT A
HOLE FOR THE MOUNTING
BRACKET WHICH IS USED TO
ANCHOR THE WATER
DISPENSER TO THE ICE
MAKER AM-50 OR C-80
USED AS STAND/PEDESTAL
Back view
DWM-20A
Contents
MODwater Dispenser Model DWM-20A
1
Step-by-Step Setup············································································································· 13
Drain Pan Connecons········································································································ 27
flexible tube to
connect with drain
BEFORE INSTALLING THE WATER DISPENSER, CAREFULLY READ THIS MANUAL AND FOLLOW ALL
WARNINGS AND : THEY ARE WRITTEN FOR YOUR PROTECTION.NOTICES
SPARKLING WATER (Green)
FILTER LIFE (GREEN)
if blinking, replace the filters
CHILLED WATER (Blue)
HOT WATER (Red)
Front view
DWM-20A
NOZZLE
HOT WATER AVAILABILITY (RED)
ALKALINE WATER (Purple)
NOZZLE GUARD
DRIP PAN DRAIN
DRIP PAN
if off, disable child safety switch
Finish Seng Up················································································································ 28
Recycling Program·············································································································· 46
Installaon on AM-50/C-80 Ice Makers··············································································· 22
Call us toll free at: 1 [phone] in case you have any addional quesons not
referenced in this Manual.
(read WARNING below)
(read WARNING below)
DO NOT REMOVE PLUGS
Warranty Condions
Warranty···························································································································· 47
TM
FILTER
HOT WATER

Installaon Kit Contents
Alkaline Chamber HS-5442
3/8” Tube 2-Way Divider (2pcs)
CO2 Regulator
3/8” Shut Off Valve
1/4” Tube (15 ) for CO2
Leak Detector (2pcs)
Water Pressure Regulator
3/8” Angle Stop Valve
Power Cord
Red Collet Locking Clip 1/4” and 3/8”
–in-One Filters
(2 pcs)
All
3/8” Tube (20 )
Thank you for choosing HOSHIZAKI MODwater model DWM-20A.
Mulple Opons: from the le to the right: chilled sparkling water, chilled sll water,
hot water and cold alkaline water.
Congratulaons on your purchase!
The DWM-20A has the following main characteriscs and features:
Fast: it fills boles in seconds.
Child Safe: avoids accidental dispensing of hot water (enabling the Child Safety Switch).
Energy Saving: it enters stand-by mode – with buon lights off- if not frequently used.
Thermal Energy Saving Switch: turn the hot water power off if not used daily.
Alkaline Chamber: mineral chamber included inside the dispenser.
1- Installaon Kit: (Included) a set of items for proper installaon of this dispenser.
2- Carbon Dioxide Tank (Not included): external to this dispenser (see pgs. 10-11).
IN ORDER TO INSTALL DWM-20A DISPENSER, YOU NEED:
WARNING: use a qualified installer for installaon and set up of the DWM-20A.
“factory-qualified technicians” to perform installaon of the DWM-20A and its
check the water inlet pressure. The dispenser withstands 80 psi maximum
pressure. Always use a water pressure regulator (included in the installaon kit).
NOTICE: read the instrucons in this Manual and retain for future reference.
NOTICE: product failure due to improper installaon is NOT covered by the Warranty.
NOTICE: the DWM-20A is for indoor use only. Do not install it outdoors.
NOTICE: due to rigorous tesng performed by the Manufacturer on each of its products,
the DWM-20A may contain reasonable traces of liquid sanizing soluon inside.
NOTICE: “ANTI-FLOODING PROGRAM”. To prevent accidental dispensing the system
automacally stops if more than 0.4 gallon of water is dispensed connuously.
WARNING: Connect DWM-20A to city potable water only.
: www.hoshizakiamerica.com.
HS-5441
x 2pcs x 22pcs
for water in for drain
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contained on page 42.
2

Product Specificaons
9 Amps
sbL57 thgieW
Ambient Working Temperature
Maximum Inlet Water Pressure 80 psi
Minimum Inlet Water Pressure 45 psi
Recommended Inlet CO2 pressure 60 to 65 psi *
DWM20A - (Included)Model
To be posioned on any countertop, or on top of a AM-50 / C-80 HOSHIZAKI ice makers
All-in-One Filters (2 pcs.) - HS-5441- (Included)
Dimensions 14 W x 21 D x 16 H
Maximum Current
Inlet Water Temperature
41-90 ⁰F
Electrical Rate 120V / 60Hz (single phase)
Dimensions of the 3 largest components to be installed:
–UN1013 Food Grade - (Not included)CO2Gas Tank
To be posioned under the counter, or at any locaon no more than 30  from the DWM-20A dispenser
20lb Tank Diameter : 9 in Height : 28 in
10lb Tank Diameter : 7 in Height : 22 in
5lb Tank Diameter : 7 in Height : 17 in
CO2Regulator
*For fine tuning of carbonaon level in sparkling water, see table at page 30
To be posioned under the sink, or at any locaon near to the main water line, no more than 10  from DWM-20A
3 in
16.1 in
1.6 in
1.3 in
Height
Diameter
Normal Ambient Condions
Hot Ambient Condions
Cold Ambient Condions
incoming water at a temperature of 75ºF
incoming water at a temperature of 90ºF
incoming water at a temperature of 41ºF
room temperature of 75ºF
room temperature of 90ºF + 65% Humidity
room temperature of 41ºF
PERFORMANCE CHARACTERISTICS OF MODEL DWM-20A
SECTION
REFRIGERATION
SYSTEM
CARBONATION
MECHANISM
HOT WATER
SYSTEM
Max Draw Capacity
Max Cooling Capacity (∆T = 10°F)
Max Volume of Chilled Water (< 40°F)
Max Volume of Chilled Water (< 40°F)
Carbonaon Level (inlet water at 65 psi)
Avg Dispensing Vol. at > 170°F (up to 195°F)
Avg Dispensing Vol. at > 170°F (up to 195°F)
Time Interval for constant hot water temp 1 mug (8oz.)
Maximum quanty of minerals dissolved in water
Maximum pH (aer 72 hours of rest)
Average Alkaline pH
Type of Minerals/electrolytes
up to 0.9 Gal/minute (chilled water)
> 20 Gal/h - Normal Ambient Condions
> 6.8 Gal/h - Normal Ambient Condions
> 5.0 Gal/h - Hot Ambient Condions
3.6 vol. - avg. 7.2 g/L - Normal Amb. Cond.
> 1.8 Gal/h Normal Ambient Condions
> 1.3 Gal/h Cold Ambient Condions
2:30 minutes Normal Ambient Condions
40 ppm
10.1 pH
8pH to 9pH
K, Ca, Mg, Fe, Mn, P, Na, Zn
PARAMETER VALUE
ALKALINE
CHAMBER
Water Filters Capacity
Mineral Alkaline Chamber Capacity
6000 Gal
1000 Gal
41-85 ⁰F
1
2
3
NOTICE: Allow 4 inch
of space at the rear
and sides for proper
venlaon
NOTICE: the performance of DWM-20A varies based on several variables including, in
parcular, the temperature of the incoming water and the ambient (i.e. room)
temperature. Find above three different temperature sengs characterizing Normal,
Hot and Cold ambient condions. The performance of water dispensers also depend
upon the size of the cup or the bole used and the sequence of dispensing (i.e. the
interval of me between mulple dispensing). This dispenser has been submied to
tests based on the standards published on www.waterdispenserstandard.com.
51
8”2”58”
FILTER
HOT WATER

1. Make certain that installaon of the DWM-20A model complies with all federal,
state, and local laws and regulaons as well as with your building codes, office/apartment
or condo provisions, rules or regulaons.
2. In the DWM-20A dispenser you must only use the HS-5541 Filtraon System.
The Manufacturer is not responsible for any misuse or modificaon of the HS-5541
Filtraon System and accepts NO liabilies if the DWM-20A is used with different
filtraon systems. In addion, the use of non original filters invalidates the
warranty on the dispenser.
3. Do not connect the DWM-20A dispenser and its Filtraon System to a water
supply that is microbiologically unsafe or of unknown quality without adequate
pre-treatment and disinfecon. Connect HS-5541 Filtraon System to the city
potable water only.
4. If the DWM-20A dispenser is le unused for more than 3 days, dispense at least
one bole of water from each water type
of the dispenser.
If left unaended for more
than 30 days, a replacement of its Filtraon System and of its Alkaline Chamber is
recommended before starng to use the DWM-20A again.
6. Maximum operang water inlet pressure: the dispenser is designed t o operate up to
the maximum recommended water pressure for a residence or a commercial building,
which is 80 psi (552 kPa).
7. Do not use the DWM-20A dispenser outdoors. The recommended room temperature is
between 41°F and 90°F.
Instrucons
6
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK, FIRE AND/OR PERSONAL INJURY,
PLEASE READ THIS USER MANUAL CAREFULLY.
1. Connect and operate the DWM-20A dispenser only in accordance with the
specificaons shown on the label located on the back of the DWM-20A model and in
this Manual.
2. Do not immerse the electric power cord, the plug, or the DWM-20A in water. Do not
plug the DWM-20A in a household extension cord. It must be plugged directly into an
electrical wall outlet (110/120 VAC, 60Hz, 15 Amps).
3. Do not operate the DWM-20A dispenser with a damaged electric power cord or a
damaged plug. In the event the DWM-20A dispenser malfuncons, or is dropped or
damaged in any manner, unplug it immediately and return it to the manufacturer for repair.
4. Do not place the DWM-20A dispenser, its electric cord, or plug on or near stoves or
other hot surfaces.
5. Always unplug the electric power cord when the DWM-20A dispenser is not in use
for an extended period (i.e. a week or more), or when it is being relocated, or before cleaning it.
6. Leave at least a 4-inch gap on all lateral sides between the DWM-20A dispenser and
the wall to ensure sufficient air circulaon for proper venlaon and efficient cooling of
the dispenser’s refrigeraon system. Do not install the DWM-20A inside a cabinet.
7. Children and people with mental disabilies must be supervised by a person who is
responsible for their safety when using the DWM-20A because the unit can
dispense water at a very high temperature. ADULT SUPERVISION REQUIRED.
8. To avoid potenal hazards and personal injury, never aempt to open/disassemble your
DWM-20A by unscrewing panels/covers: there are no user-serviceable parts inside! In
case of malfuncon, call the Manufacturer using the toll-free customer service line. Repairs
of DWM-20A must only be performed by the Manufacturer or its qualified service
personnel to avoid potenal hazard and electric shocks. The Manufacturer warranty will be
automacally invalidated if non-authorized personnel services the DWM-20A. Call
toll-free at 1 [phone].
9. Any use of non-original parts (i.e. parts not provided by the Manufacturer), including
third-party parts, could lead to a permanent malfuncon or a failure of the DWM-20A,
property damage and/or personal injury, including death.
10. Using third-party filters or other filtraon systems for the DWM-20A dispenser
other than original HS-5441 filters may result in a permanent malfuncon of your
dispenser and may also cause personal injury. Furthermore, it will invalidate the
warranty on the DWM-20A.
11. If any component of the DWM-20A dispenser is misused or used incorrectly, your
dispenser may fail and cause property damage and personal injury, including death from
electric shock. Misuse of the DWM-20A dispenser may cause deterioraon of the
quality or contaminaon of the materials used in DWM-20A dispenser. Connecng your
dispenser to a supply of contaminated water may result in serious personal injury. Only
connect the dispenser, through its own external filtraon system, to a potable water supply.
12. Water pipe connecons and fixtures directly connected to a potable water supply shall be
installed and maintained in accordance with federal, state, and local codes.
7
DUE TO THE FACT THAT MANUFACTURER MAY NOT KNOW THE QUALITY AND THE
PERFORMANCE CHARACTERISITCS OF ANY POSSIBLE ALTERNATIVE FILTRATION SYSTEMS
IN THE MARKET, PLEASE NOTE THAT THE MANUFACTURING WARRANTY OF THIS
DISPENSER BECOMES NULL AND VOID SHOULD YOU USE FILTER(S) OTHER THAN 2 FILTERS
HS-5441 INSTALLED IN PARALLEL - READ INSTALLATION INSTRUCTIONS IN IN THIS
MANUAL.
5. Standard water inlet pressure. the DWM-20A dispenser must be connected to a cold
water supply at a pressure of 65 psi (max) with a flow rate of, at least, 1 gallon/minute. A
very low external water pressure (at or below 40 psi) or a very low water flow rate (below
1 gallon/minute) of your water line might significantly reduce or hamper the performance
of your DWM-20A and its ability to dispense fresh sparkling water. If the water pressure is
low, please use the booster pump as indicated in the Parts Manual (order separately).
8. When the Fltraon System indicator (green light – top right) starts blinking (on/off) it
means that the HS-5441 filters and the HS-5442 Alkaline Chamber you are using have
reached the end of their lifespan, and MUST be changed in order to prevent quality
deterioraon of your drinking water and clogging of the system. It is recommended to
replace the HS-5441 filters and the HS-5442 Alkaline Chamber as soon as possible when
the green light indicator starts blinking or every 6 months, whichever comes first.

8. Cut a tube section to connect the pressure regulator to the leak detector and to
the HS-5441 filters.
2
1
3
4
Water Supply Connecon
Installaon
7. Connect the other end of the 3/8” tube to the HS-5441 filtraon system.
2. Allow 4" of space at rear and sides of DWM-20A for proper venlaon.
3. Locate and close the main valve for COLD
water under the sink (turn right completely)
(fig 1).
4. Using a pipe wrench, loosen the nut and
disconnect the water line at the main valve
(fig 2).
5. Next, install the “Angle Stop Valve” (ASV),
as shown above, as provided in the installation
kit (fig 3).
6. Locate the 3/8” tubing found in the
installaon kit. Cut a short tube secon to
connect the angle stop valve to the pressure
regulator, as provided in the installaon kit (fig 4).
TIP: To connect the tube, simply push the
tube into the fing “WATER INLET” unl it
stops. Pull on the tube to check if it is
secure. To disconnect, first push in the
collet as shown in fig 5.
Next, with the collet held in positon,
remove the tube by pulling it away from
the collet as shown (fig 5).
5
TIP: for a step-by-step installaon guide that includes all the elements of
the installaon kit, please go to secon “Step-by-Step Setup” at page 13.
8 9
9. Cut a tube secon to connect your dispenser to the leak detector valve as provided in
the installaon kit. Be sure that arrows on the leak detector valve follow the water flow.
12. Open the side panel door and insert the Alkaline Chamber (HS-5442).
WARNING: As directed in the Internaonal Plumbing Code of the Internaonal
Code Council and the Food Code Manual of the Food and Drug Administraon
(FDA), this dispenser must be installed with adequate backflow prevenon to
comply with federal, state and local codes. For models installed outside the U.S.A.,
you must comply with the applicable Plumbing/Sanitaon Code for your area.
10. Cut a short tube section to connect the leak detector valve to the shutoff valve as
provided in the installation kit. The shutoff valve should be placed at the back of the
DWM-20A dispenser.
11. Cut a short tube section to connect the shutoff valve to the DWM-20A using the
elbow connection (3/8”) at the back of the DWM-20A.
1. Place the DWM-20A dispenser on a sturdy, flat surface. A kitchen
countertop is an ideal place. Another ideal place is on top of an AM-50
or C-80 ice Maker. Locate a water line within 10 feet of the DWM-20A
dispenser. Make sure the water supply you intend to connect DWM-20A
to is cold and it is not coming from your hot water boiler.

11
1. Fully close the main valve on top of the CO2 tank by twisting the knob.
2. Release pressure by touching the green sparkling buon on the dispenser and
dispensing sparkling water.
3. Shut the valve on the CO2 regulator, turning it counter-clockwise.
4. Using a wrench, remove the regulator from the empty tank.
5. Screw the CO2 regulator to the new (full) tank. Make sure the o-ring (black rubber
ring) is in good condition.
6. Open the main valve on top of the tank completely.
7. Open the CO2 valve (clockwise) on the regulator knob.
8. Reset the valve to 60-65 psi.
CO Tank Replacement
2
1. Locate the 1/4” tubing found in the installation kit.
2. Attach the CO2
regulator (as provided in the installation kit) to the external CO2 tank
(not provided) by turning the nut to the right while holding the regulator.
3. Connect the CO2 regulator using the 1/4” CO2 tube to the elbow quick connector
(1/4”) in the “CO2 INLET” port on the back of the DWM-20A dispenser.
4. Open the main valve on the external CO2 tank very gently to avoid fast release of gas.
5. Then, use the CO2 regulator to adjust the pressure. Turn the handle knob located on the
front of the CO2 regulator. Set the pressure to your desired fizziness level (typically around
60 to 65 psi). See fig 6 below. For fine tuning go on page 30.
Carbon Dioxide Connecon (CO Tank)
2
IMPORTANT: Ensure that the main valve on the external CO2 tank is completely
closed.
6
10
WARNING: The CO2 tank must be secured with a chain or restraint in an upright
posion as indicated on page 16 of this Manual.

12
IMPORTANT: Aer installaon is complete, before starng up the DWM-20A
dispenser, wait for at least 2 hours, to allow the refrigerant to sele.
FRONT VIEW OF A COMPLETED INSTALLATION
DWM-20A Dispenser
All-in-One Filters
CO2 Tank
CO2Regulator
13
Step-by-Step Setup
78
Electrical Cable
Starng Up
1. Locate the main electrical power socket and the main power switch on the back of
the DWM-20A dispenser, plug in the electrical cable (provided) and turn on the main
power switch (fig. 7 and fig. 8).
With power on, inially all four buon lights (green, blue, red, and purple) will start
blinking, indicang water is flowing into the dispenser.
2. The flow of water inside the DWM-20A will be audible, which indicates the automac
filling of the refrigeraon system is acvated. This automac filling process takes about
five to ten minutes. Wait.
When the filling is complete, all the touch buon lights will stop blinking and stay
illuminated.
Child Safety Switch
Hot Water Switch
Main Electrical Power Socket
Main Power Switch

Before Starng:
.
General Instrucons:
List of Necessary Tools (not provided):
Tube cuer
Screw driver
Adjustable wrench
Tongue and groove plier
※ In case of a wood countertop
※In case of a granite stone countertop
hole saw (Wood 3/4”)
hole saw (Diamond 3/4”)
Electric Drill 1/8” Drill Bit and, for granite, a
Milwaukee one-piece hole saw diamond
plus 3/4” & 1/2"
BACK VIEW OF THE COMPLETED INSTALLATION
14 15
Prepare all components for installaon (remove each component from its box).
Before starng , open and thoroughly read this Manual because the dispenser
should be powered on and set up before the installaon is complete.
The DWM - 20A model is designed to be located on a countertop or on a
Hoshizaki C-80/AM-50 ice maker as indicated on the following secon (pag 22).
The All-in-One Filtraon System and the CO2 gas tank are normally located under
the counter.
The Fltraon System ideal locaon is under the sink.
In order to connect the dispenser to the filtraon (with a 3/8” flexible plasc
tube) and to the CO2 gas tank (with a 1/4” flexible plasc tube), a small 3/4” hole
may be drilled on the countertop in a locaon corresponding to the back of the
dispenser. Never place the DWM-20A model inside a closed cabinet
without proper venlaon.
x 2pcs x 22pcs
O
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Lock each John Guest
quick-connect with red collet locking clip
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N
M
(A) 3/8” Manual shut off valve
(B) 65PSI 3/8” Pressure regulator
(C) 3/8” Angle stop valve
(D) Leak detector
(E) Double gauge CO2regulator
(F) 3/8” Tube 2-way divider
(G) Double All-in-One Filter
(H) CO2 Gas tank
(I) Flow prevenon valve (ASSE 1032)
(J) Power Cord
(K) Alkaline Chamber
(L) 3/8” Drain tube
(M) 3/8” Water tube
(N) 1/4” CO2 gas tube
(O) Red collet locking
(P) C02 Tank restraint
P

1) Unpack the DWM-20A model and place it on a counter, next to an electrical power outlet, exactly where it is
supposed to be permanently installed.
2)
Dispenser:
DWM-20A Model
(on the countertop)
Kitchen
Faucet
UNDER THE
COUNTER AREA
BACK VIEW
3) Prepare a temporary water line to connect the dispenser and power it up.
4) At this me, while the dispenser has started, you might need to drill a 3/4” hole on the countertop in proximity of
the back of dispenser to connect it with its Filtraton System. Use “Milwaukee” one-piece hole saw or equivalent
tool.
5) Before cung tubing, measure length necessary to connect the dispenser to Filtraon System and C02 tank.
6) Using the 3/8” tube, install angle stop valve (C), the “ASSE 1032” backflow prevenon valve (I), the water pressure
regulator (B) and the shutoff valve (A)
※Install (C), (I) and (B) close to each other. Install (A) close to the DWM-20A on the countertop. Make sure (C) is
installed on the cold water source under the sink, NOT the hot water source which is oen located next to the
cold!
7) Connect (C), (I) and (B) using the temporary water line For this temporary water line, you may want to use the
3/8” flexible plasc tube from the installaon kit included inside the box.
8)To start the DWM-20A, open valve (A) and make sure that the water flows into the dispenser (use port “WATER IN”).
Then switch main power ON.
※ When the filling of water is complete (it might take 5 to 10 minutes), all buon lights will stop blinking.
9) Compressor starts aer another 5 minutes. Check the air temperature behind the dispenser’s grid.
※ The air blown through the grid should be warm. (Red circle area in the picture above!)
(C) 3/8” Angle Stop Valve
(B) 65PSI 3/8” Pressure Regulator
(I) Flow Prevenon Valve (ASSE 1032)
Temporary water line
Warm air blown out
16 17
Unpack the two All-in-One Filters. Procure the C02 gas tank. Make sure that the CO2 tank is labeled
Carbon-Dioxide UN1013 Food Grade. Check that there is sufficient space under the counter to place all the
components of the installaon kit as listed on page 3. Otherwise select another suitable locaon for either the
filters or the CO2 tank. Filters and/or CO2 tank can be located several feet away from the dispenser (DWM-
20A unit), check dimensions of largest components on page 5.
Backflow Prevenon Valve ASSE 1032
(not included)
I
P
C02 Tank Restraint
(not included)
P

10)
Push the alkaline buon and dispense alkaline water unl totally clear water is dispensed.
※ inially, the dispensing water is gray in color, because of the granular acvated carbon contained in the
alkaline chamber. Aer flushing the alkaline chamber, the water coming out should be clear.
11) Turn on the hot water switch (red switch) located behind the DWM-20A model. It normally takes ten minutes
for the water in the internal hot water tank to reach the maximum temperature. Wait.
12) Dispense 1 cup of hot, chilled, sparkling (even without CO2 gas connected) and alkaline water.
13) Check if the dispenser works properly.
14) At this point, close the angle stop valve (C), and dispense some alkaline water for 5 seconds (in order to release
the water pressure inside the temporary tube).
15) Shutoff the valve (A) behind the dispenser but KEEP the electrical power on.
16) Leave the dispenser powered on, so that its refrigeraon system can work during the me the Filtraon System is
installed. Therefore, when the total installaon is completed, you can easily check the temperature of the chilled
water and adjust the carbonaon level of the sparkling water. Now you can remove the temporary “water line”.
※ Do not move the dispenser since its refrigeraon system is now full of water and it might overflow. If you
need to slightly move the dispenser to its final posion, pay extreme aenon. The dispenser is quite heavy now
(about 95lbs), its refrigeraon
is full of water and any sudden movement might produce an internal water
overflow and a small flooding on the countertop. Avoid this. Do not ever incline the dispenser.
Step 2 - Flush the Filtraon System:
17) Install one leak detector tee (D) close to the water pressure regulator (B). Do not acvate leak detector by
inserting its alkaline baery unl the installaon is completed.
18) Connect (D) & (F) (i.e. the 3/8” 2-way divider), which is the inlet of the two All-in-One Filters. The two filters shall
be connected “in parallel”. Connect the temporary line from the other 3/8” 2-way divider (the outlet port of the
double All-in-One Filters) directly to the sink to allow flushing of the filters. Open the angle stop valve, and keep it
open unl clear water is dispensed through this temporary line. See picture on next page.
19) When completely clear water is dispensed through the double All -in-One Filters, close the angle stop valve (A)
again, and remove the temporary water line.
Step 3 – Connect all the Components and close the water lines:
20) Now it is me to connect all the components using the 3/8” tube provided. At this point you can also run the 1/4"
tube (C02 gas line) from the back of the dispenser to the locaon where the CO2 tank is going to be posioned.
21) Install the second leak detector electrode close to (A). Then run a line from the back of the dispenser to the 3/8”
22)
Flush the two All-in-One
filters in the sink, not
through the dispenser
18 19
Now that the enre water line is connected, as per the picture on the next page, open angle stop valve (C) and
shutoff valve (A). Make sure dispenser is connected.
2-way divider which is connected to the filters outlet port. To posion this second leak detector, disconnect the wire
from the electrodes and then insert the wire through the hole on the counter top where the water tube and the CO2
tube are also passing through.

Step 4 – Check for potenal water leaks from the water lines or the filters:
23) Pull water lines to check if they are properly connected with the various John Guest connectors. Make sure
there are no leaks. Insert red collect locking clips 1/4” and 3/8” as appropriate at any juncon.
24)
25) Cut a small square of paper towel, fold it and posion the paper towel under the electrodes of the leak detector:
if the paper towel gets wet due to a flooding, the leak detector will acvate and the solenoid valve will
close the water line. Then the leak detector will start beeping loudly. However, a small spill from a glass of
water or from the drain pan would not be sufficient to trigger the leak detector..
26) Carefully positon the two leak detector sensors: one behind the dispenser and the other, under the counter,
close to the double All-in-One Filters, or in an area where potenal flooded water would naturally accumulate.
20 21
27) Dispense some water from the dispenser.
28) Check that there are no leaks at the end of your installaon.
29) Do a final check to all water lines, insert the red collet locking clips at each water connecon.
.
Step 5 – Connect CO2 tank and set sparkling water level:
30) Install CO2Regulator on CO2gas tank. Connect regulator to the dispenser using the 1/4” tube. Gradually
open the valve on the tank.
31)
32) Dispense sparkling water from the dispenser, and set more accurately the level of carbonaon as desired.
If the sparkling water comes out cold, thus a fine regulaon of the carbonaon level is possible by moving the
Insert baery (included) in each leak detector. Use a small piece of wet fabric or wet paper towel in order to
test the leak detector.
Check that the leak detector gets triggered correctly. To reset the leak detector, press and hold its reset buon
for several seconds unl the water solenoid valve of the leak detector opens.
Then use the regulator knob to set the gas pressure to about 60 -65 psi .
knob on the gas regulator clockwise and counter-clockwise. See table at page 30.

22 23
Installaon on AM-50/C-80 Ice Makers
Mounng Brackets for the
DWM-20A and AM-50/C-80
105
21.70
HOLE FOR THE MOUNTING
BRACKET WHICH IS USED TO
ANCHOR THE WATER
DISPENSER TO THE ICE
MAKER AM-50/C-80 USED AS
STAND/PEDESTAL
Back view
DWM-20A
Mounng Brackets (2pcs) 4A0363-01
(Not included, order separately)
MODwater DMW-20A can also be mounted on Hoshizaki AM-50 or C-80. The base of
the DWM-20A is designed to perfectly fit on top of AM-50 and C-80 ice makers.
How anchor the DWM-20A on top of ice maker
AM-50 or C-80.
NOTICE: the DMW-20A cannot be mounted on the wood door system -DS version of the AM-50/C-80
models

Completed Installaon of DWM-20 on AM-50/C-80
24 25
Completed Installaon of DWM-20 on AM-50/C-80
Front Side Back Back Corner
Water
Source Water
Source
WARNING: the CO2 Tank must be secured to the wall with a metal chain or restraint
(not included, order separately)

27
26
MAX TILTING = 15 DEGREES
MAX 20 Lbs
MAX LOAD WEIGHT ON TOP OF WARNING:
DWM-20A = 20 Lbs
ANGLE
15° MAX
DO NOT TILTWARNING:
Drain Pan Connecons
The drain pan comes connected to a drain pipe that runs underneath the dispenser and
can be connected to a drain - via a flexible plasc tube - connected from the back of the
DWM-20A dispenser.
DWM-20A drain pan can be connected to a drain through a flexible tube as per picture
Drain to the floor
from drain pan
L
Alternavely, if the locaon where the dispenser is installed has no drain, you must
detach the metal pipe underneath the drain pan and place the plug at the boom of
the drain pan. The drain pan must be emped periodically, or when it is full.

5. Next, turn on the hot water power, which is the red switch located at the back of your
DWM-20A dispenser. Wait for 10 minutes before dispensing (very) hot water by
touching the red button.
SPARKLING CHILLED HOT ALKALINE
3. Next, dispense 16 oz. of sparkling water (green buon).
28 29
TIP: To achieve the desired carbonaon level, locate the CO2 regulator and adjust the
desired carbonaon level by pulling the blue knob and turning it clockwise or
counter-clockwise before pushing the knob back to its starng posion. For perfect
“fizziness” use the pressure as indicated by the table on page 30.
Hot Water
Touch and hold red button to dispense hot water (fig 12).
b. To conserve energy, you may turn off the hot water feature by simply switching off
the red Hot Water Switch located on the back of the dispenser.
Operaon
Finish Seng Up
1. Place a bole or container on the drain pan. Dispense alkaline water (purple buon)
unl the dispensed water is clear of carbon parcles.
6. If you have installed the DWM-20A filtraon correctly, the green light indicator
“FILTER” (top right) should also be solid green at this point.
Manual Dispensing
Alkaline Water
Touch and hold the purple buon to dispense alkaline water (fig 9).
Chilled Sll Water
Touch and hold the blue buon to dispense chilled water (fig 10).
Chilled Sparkling Water
Touch and hold the green buon to dispense chilled sparkling water. Increase the
bubble level to desired fizziness level as described below (fig 11).
FILTER LIFE (GREEN)
if blinking, replace the filters
HOT WATER AVAILABILITY (RED)
if off, disable child safety switch at the back
NOTE: It is normal that the first two gallons of mineralized alkaline water appears black
or milky in color. Wait 10 minutes. Dispense two gallons more unl the water is
completely clear.
2. Next, dispense 16 oz. of chilled (sll) water (blue buon).
4. Next, dispense hot water (red buon). Please note that the nozzle for the hot water
is separated from the nozzle of chilled and sparkling water in order to minimize
splashes. If by pressing the red buon hot water is not dispensed, it is probably due to
the Child Safety Switch located at the back of the dispenser being switched on. The
Child Safety Switch will prevent children from accidentally dispensing hot water by
pressing the red buon. Therefore, disabling the Child Safety Switch will allow you to
dispense hot water by touching the red buon. This will also acvate the red-light
indicator “HOT WATER” located at the right corner of the front of the dispenser. When
the red light is illuminated - WARNING sign - the DWM-20A is enabled to dispense hot
water. In order to dispense hot water, first the internal HOT WATER TANK MUST BE
FILLED UP: touch the red buon unl the hot water tank is totally filled and water starts
flowing out of the nozzle.
a. The red LED light indicator labeled “HOT WATER” at the right corner on the front
plate indicates that the DWM-20A is ready to dispense hot water. If the red light
indicator is off the dispenser will not dispense hot water. To turn on the hot water
dispensing funcon, simply turn off the “Child Safety Switch” located on the back of
the dispenser.

30
SPARKLING CHILLED HOT ALKALINE
9
SPARKLING CHILLED HOT ALKALINE
10
SPARKLING CHILLED HOT ALKALINE
12
SPARKLING CHILLED HOT ALKALINE
11
TIP: For pricise adjustment of carbonaon level, measure the water pressure and
follow this table below:
Inlet Water Pressure Inlet CO Pressure
2
45 psi
50 psi
55 psi
60 psi
65 psi
45 - 55 psi
50 - 60 psi
55 - 60 psi
55 - 65 psi
60 - 65 psi
Drain Pan
If the drain pan is NOT connected to its drain line, it must be regularly emped.
• Gently pull the drain pan with care to avoid spilling.
• Empty the water inside and clean the drain pan with soapy water if necessary.
• Put the drain pan back in place.
31
Plug
Plasc drain pan boom
Drain Pan Top

32
Surface Finish Care:
Do not use chemicals such as cleaners containing chloride, chlorine bleach soluons,
concentrated soaps, water with high salinity, or hydrochloric acid, since they will cause
corrosion or discoloraon of the stainless-steel surface.
Do not use metal scrapers, sharp objects, steel wool, scouring pads, or abrasives on the
unit.
Do not use a water jet to clean the surface.
Highly concentrated cleaners may cause aesthec damage to plasc and metal finishes.
WARNING:
Areas of Maintenance:
Roune sanizaon of the DWM-20A dispenser should be performed on the
following parts:
SPARKLING CHILLED HOT ALKALINE
1) Nozzle
2) Nozzle Guard
3) Front Plate Dispensing Area
4) Drain Pan Top
5) Drain Pan Boom
SANITARY GLOVES ARE TO BE USED DURING CLEANING OPERATIONS.
APPLICABLE SAFETY PRECAUTIONS MUST BE OBSERVED. INSTRUCTION
WARNINGS ON THE PRODUCT MUST BE FOLLOWED.
CLEANER CONTAINS ACIDS. THESE COMPOUNDS MAY CAUSE BURNS. IF
SWALLOWED, DO NOT INDUCE VOMITING. CALL PHYSICIAN IMMEDIATELY. IN
THE CASE OF EXTERNAL CONTACT, FLUSH WITH WATER. KEEP OUT OF REACH
OF CHILDREN.
33
Cleaning and Sanitaon
The DWM-20A is constructed with high quality stainless steel. Cleaning with a glass
cleaner and a so coon cloth can be performed to keep the stainless steel of the
DWM-20A surface clean. Using sparkling water to clean external surfaces is also an
opon with DWM-20A.
Drain Pan Plate
1) Nozzle
2) Nozzle Guard
3) Front Plate Dispensing Area
4) & 5) Drain Pan
Use Drip Pan Drain or you can use drainless drip tray
5) Plasc Drain Pan Boom
4) Drain Pan Top

Every Six Months:
NOTICE: These operaons must be carried out by an authorized technician.
1) Replacing the Nozzle Tip:
A. Disconnect the power so that water may not be accidentally dispensed.
B. Unlatch the nozzle guard from the dispenser.
C. While wearing sanitary gloves, remove the nozzle cap by unscrewing it counter-
clockwise. Remove the aerator and o-ring from the nozzle cap.
Daily:
Hydrogen Peroxide (3% Soluon) Spay
Keep exterior surfaces of the dispenser (nozzle, nozzle guard, front plate dispensing area,
drain pan top, drain pan boom) clean by using a clean, damp cloth. While wearing
sanitary gloves, sanize the exterior surfaces with hydrogen peroxide (3% soluon) and
allow the surface to air dry. When cleaning and sanizing the touch buons, be sure to
power off the dispenser to prevent accidentally dispensing water.
Addionally, it is important to keep the drain pan clean of debris. Remove any as soon as
it is noced.
34
Pour hot water into the drain pan to keep the drain open (if the drain pan is
connected to a drain line).
D. Insert a new aerator and o-ring into the nozzle cap and screw the assembly back
into the nozzle.
F. Mount the nozzle guard back onto the dispenser.
2) Replacing the Air Filter
A. The air filter is located underneath the dispenser. While wearing sanitary
gloves, slide the air filter out of the machine.
B. Slide in a new air filter into the dispenser.
35
B
Air Filter
Nozzle p

37
ê
ê
ê
êê
3) Replacing the 2 external All-in-One Filters (HS-5441) and the internal Alkaline
Chamber (HS-5442)
Replace the two external All-in-One Filters (HS-5441) and the Alkaline Chamber (HS-
5442) when the filter life green LED indicator blinks (i.e. it means that 6,000 gallons
have been dispensed by the DWM-20A dispenser) or every 6 months, whichever
comes first. Instrucons are also found on the label of the All-in-One filter (HS-5441)
and on the label of the Alkaline Chamber (HS-5442).
Follow this procedure step-by-step:
A. Locate the main water shutoff valve (the angle stop valve).
B. Shut off the water line valve (i.e. the angle stop valve) and relieve the
water line pressure by selecvely touching the dispensing buons unl no
more water comes out from the dispenser.
C. Locate the two All-in-One Filters HS-5441.
D. Hold the head of each filter firmly. Rotate the cartridge clockwise, 1/4
turn, and pull it out.
E. Insert a replacement cartridge by rotang it counter clockwise, 1/4 turn,
unl it clics and stops. The arrow head on the top collar should align with
the arrow on the head.
F.
G. When the two new HS-5441 filters have been flushed, shutoff the main
water valve (angle stop valve) again and locate the Alkaline Chamber
HS-5442 inside the side panel door on the right side of the dispenser.
H. Unscrew and remove the panel to reveal the Alkaline Chamber.
I. Rotate the Alkaline Chamber clockwise, 1/4 turn, and pull it out.
J. Insert a new Alkaline Chamber by rotang it counter clockwise, 1/4 turn,
unl it clics and stops. The arrow head on the top collar should align with
the arrow on the head.
K. Re-insert the water line into the “WATER IN” port on the back of the
dispenser and re-open the main water line valve.
L. Now flush the Alkaline Chamber by dispensing approximately 2 gallons of
alkaline water using the purple buon. When the alkaline water comes
out clear, the dispenser is ready.
M. At this point, before closing the side panel door, it is wise to check for leaks
from the two external All-in-One filters HS-5441 and/or from the internal
Alkaline Chamber HS-5442. Make sure they are sealed correctly. Push
the filter reset (”FR”) buon at the back of the dispenser for 10 seconds
in order to reset the volumetric count of water consumpon.
36
Replace the two HS-5441 Filters
Get a bucket or sink to flush filters: remove the water line from the back
of the dispenser and re-open the water supply so that the HS-5441 filters
can be flushed out in a 5 gal. bucket or in the sink. Flush the filters for 5
minutes or unl the water runs clear. DO NOT flush the filters through
the dispenser.