Belshaw DOMIX45, AWM-45 Installation Manual

DOMIX 45

Water Doser Mixer

Operator’s Manual

CODE 2600124 – 10.09.2001

Belshaw Bros., Inc.

1750 22nd Ave S.

Seattle, WA 98144

Phone: [phone]

Fax: [phone]

Toll Free: 1-800-578-2547

E-mail: [e-mail]

http://www.belshaw.com

If you accept the machine from the shipping
company, you are, in effect, saying that the
machine is in good condition, and you must
pay for the machine. Belshaw cannot pay for

shipping damage, because the freight company
has accepted the machine from Belshaw in good
condition, and is responsible for its safe delivery.
For your protection, inspect the machine to see
that no parts are bent, scratched, or otherwise
damaged. If any damage has occurred in
shipping, file a freight claim with the shipping
company immediately.

Keep this manual for future reference.

IMPORTANT

EQUIPMENT RECORD

Please provide the information below when you correspond with us about your machine.

Purchased by ______________________________________________________________________

Installed by _______________________________________________________________________

Date of Installation _________________________________________________________________

Model number _____________________________________________________________________

Serial number

0104

MN-1906EN

Belshaw Bros., Inc.

1750 22nd Avenue South

Seattle, WA 98144-4590 USA

Phone: [phone] • Fax: [phone]

Toll Free: 800-578-2547

Email: [e-mail] • http://www.belshaw.com

E.V.

MAIN

Y/G

Red

Back

Y/G

white
violet

red

black

BUZZER

MAIN

P.C. BOARD

INT.

PROBE

black

orange

LITRE

COUNTER

EXT.

PROBE

Figure – 1: Wiring diagram

POWER

P.C. BOARD

SUPPLYPUMP

Belshaw Bros., Inc. • 1750 22nd Ave. S. • Seattle, WA 98144 • Phone [phone] • Fax [phone]

Domix 45 Water Mixer MN-1906EN 1

Boiler

Cold water mains

Figure 2 Figure 3

cold water
Boiler mains Refrigerator

Cold water mains Refrigerator

cold water
Boiler mains Refrigerator

Figure 4

Figure 5

Figure 1 and 2: standard machine – Figure 3: with manual feeding kit

Figure 4: with automatic feeding kit

Belshaw Bros., Inc. • 1750 22nd Ave. S. • Seattle, WA 98144 • Phone [phone] • Fax [phone]

2 MN-1906EN Domix 45 Water Mixer

Warm (-er) Cold (-er)

1

2

3

16 15 14

4

5

35

40

45

50

55

6

17

30

25

12

20

15

7

10

5

MANUAL PROG.

RUNBY- PASS

13

7

8

9

10

1211

Figure – 6: machine overview

Belshaw Bros., Inc. • 1750 22nd Ave. S. • Seattle, WA 98144 • Phone [phone] • Fax [phone]

Domix 45 Water Mixer MN-1906EN 3

2

5

1

9

8

BYMANUAL

PROG.

7

12

7

11

10

12

20

17

25

30

35

40

45

5

15

10

46

55

50

3

Figure – 7: Spare Parts

Belshaw Bros., Inc. • 1750 22nd Ave. S. • Seattle, WA 98144 • Phone [phone] • Fax [phone]

4 MN-1906EN Domix 45 Water Mixer

1. DESCRIPTION

(see figure no. 6 page 3)

1. Ball gate valves

2. Unions for alternate installation

3. Double stainless-steel mesh water filters

4. Check valves

5. Temperature dial

6. External temperature probe

7. Electrical supply plug / remote control plug

8. Electronic thermometer display

9. Electronic thermometer display for external probe

10. key toggles between temperature and volume displays

11. STOP/C (manual stop/clear memory) and START (starts water delivery) keys

12. 8’-0” delivery hose with stainless steel terminals

13. By-pass connection

14. Function control lights

15. Data entry keyboard

16. Digital display for water volume selected, or already delivered (after pressing STOP).

1.1 TECHNICAL FEATURES

SOFTWARE Version: DOMIX45.02I
The Domix 45 features are listed in the Table 1.

Supply tension

230Volt A.C. or 110Volt A.C. ± 10%
(see equipment rating plate)
Frequency 50/60Hz
Power 25VA
Hydraulic connections ½"
By-pass water outlet 16mm
Max. inlet water temperature 150oF
Inlet water pressures max.: 75 psi

min.: 15 psi

Max. pressure ratio between the 2 inlets: 1:5
Temperature control Setting range 40 – 120oF

o

F

o

F

Measure precision: ± 0.5

Mixing precision: ± 1.5
Dosing control Max. dosage quantity: 99 lb 15 oz.

Min. dosage quantity: 1 oz

Precision: ± 1% (over 1 lb)
Water delivery

Supply fuse

Pump remote control fuse

at 15 psi and 70°F: 40 lbs/min

at 75 psi and 70°F: 90 lbs/min

5x20 mm, F 315 mA L 250 V for 230VAC

5x20 mm, T 630 mA L250 V for 110VAC

5x20 mm, F 6.3 A L 250V for 230VAC

5x20 mm, F 10 A L250V for 110VAC

Table 1

Belshaw Bros., Inc. • 1750 22nd Ave. S. • Seattle, WA 98144 • Phone [phone] • Fax [phone]

Domix 45 Water Mixer MN-1906EN 5

2. INSTALLATION

• Insert the delivery hose (12) into its housing.

• In case of hard water (with high lime scale

content = hardness in French degrees higher
than 25 – 30, or 250 – 300 ppm) it is
necessary to employ an ion exchange water
softener. This unit must be calibrated so as to
maintain a residual hardness ranging between
5 and 10 French degrees (50 – 100 ppm). The
use of electronic water softeners is not
advised, since their efficacy has not yet been
proved.

• Fix the doser-mixer on the wall at a height

from the floor of 4’4” – 5’1”, using the four
wall plugs supplied. The 90° wall plug hook is
supplied to provide support for the water
delivery outlet elbow.

Do not place other machines directly below
the DOSER – MIXER.

• Arrange the water inlet tubing as shown in the

lay-out diagrams, figures 2 – 3 – 4 – 5,
mounting the ball gate valves (1) at the end of
the pipes (black lever = cold on the right and
red lever = warm on the left).

• With reference to the figure 4, it is advisable

to use the pre-assembled group: Three way
connection kit, code 3801205.

• Connect the by-pass (13) to a drain by means

of a copper pipe with ½” internal diameter.

• Connect to the proper power supply (see

equipment rating plate near the plug 7), single
phase 50 or 60Hz, using the supplied socket,
fitted with a three core cable min. section
3x1mm. An external switch is helpful.

• For the eventual pump remote control, use the

supplied socket to connect the remote control
switch of the pump(s). The use of such a
pump is necessary when one of the two inlet
pressures in less than 1 bar, for example when
using unpressurized water heaters or
refrigerators.

The plug on the device has the following wiring

diagram (clean contact):

Figure – 8

MAX 3A resistive

• With reference to the fig 5, the use of

Automatic kit is foreseen, code 3801231
(230V).

• Connect ball gate valves to the doser-mixer by

means of the "O" ring gasket type unions (2).

Belshaw Bros., Inc. • 1750 22nd Ave. S. • Seattle, WA 98144 • Phone [phone] • Fax [phone]

6 MN-1906EN Domix 45 Water Mixer

3. OPERATING INSTRUCTIONS

Switch on the doser-mixer using the external
switch (or by plugging in the socket).

The first displays appearing after switching on
refer to the self-test. The displays show the
numbers from 0 to 9, the microprocessor
software version, then the data regarding the last
discharge.

3.1 MANUAL OPERATION

• Press P00 on the keyboard (the yellow

Manual led lights up and the decimal point
of the liters flashes), then select the required
water quantity. If only the quantity has to be
stored, press START. If the operator also

needs to store the temperature, press the
key: the flashing moves to the decimal point
of the temperature, which can be set.

In case of error, in the liters or in the

temperature, press the STOP/C key and
reselect.

• Press the START key: the display (8) shows

the actual discharge temperature and the
display (16) indicates the decreasing liters.

• To manually stop water delivery at any time

press the STOP/C key. In the display (16)
the quantity of delivered water flashes; to
resume the dosage, press again the START
key; otherwise pressing again the STOP/C
key the memory is cancelled and a different
quantity can be set.

• Adjust the water temperature using the knob

(5), checking it on the electronic
thermometer (8). In case of correction, wait
a few seconds before intervening, so as to
allow the temperature to stabilize.

• To obtain the same water dosage in

successive operations, simply press the
START key, as the doser-mixer is provided
with a memory. In the case of power failure
during dosing the data is not lost; when
power is restored simply repress the START

key to complete the dosing operation (see
page 20 par. 3.5.3).

• To modify quantity and/or temperature in

memory, press directly the key and
proceed as for the first data entry.

• To ensure optimum operation the warm

water temperature must be at least 10°C
higher than the required delivery water
temperature and the cold water should be at
least 3°C lower. Low temperatures (under
10° - 15°C) may be obtained only using a
refrigerator.

• The doser-mixer is equipped with a valve for

manual delivery of pre-mixed water (by­pass). This valve can be used both for
discharging possible backwater in the pipes,
when the doser is switched on for the first
time every day, and for water delivery
during power failure or in the event of
dosing solenoid valve failure.

NOTES:

1) The by-pass function light never switches
on in this machine version, and the RUN
function light is on during the whole
discharge.

2) The stored temperature appears only
when a recipe is recalled, or when the key
for the quick modification is pressed, and

remains for 6"; then the display shows
the actual internal probe temperature.

3.2 OPERATION WITH 80 PROGRAMS

3.2.1 Initial recipes setting

Set the program number (ex.P01, P02 etc.)
appearing on the lower display (9) (PROGR.
lights up) and then the desired water quantity,
appearing on the upper display (16).

To store the temperature also, press the key
and proceed as for manual operation.

It is possible to exit from a recipe setting dosing
the recipe itself (press START), setting a new

Belshaw Bros., Inc. • 1750 22nd Ave. S. • Seattle, WA 98144 • Phone [phone] • Fax [phone]

Domix 45 Water Mixer MN-1906EN 7

recipe (press P...), or automatically after 10
seconds: in all these cases the recipe is stored.

Warning: recipe numbers from 1 to 9 must
always be set using the format: 01, 02, etc..

2 4 5. 7

3.2.2 With recipes already programmed:

To recall a recipe, enter the desired number (for
example P28), which is shown for 3 seconds on
the lower display (9), while the upper displays
show the relevant quantity and temperature.

Press START to carry out the dosing.

If modifications are required, set the new
quantity and/or temperature as explained above.

To stop water delivery manually at any time
press the STOP/C key. After that on the display
(16) the delivered water quantity flashes; to
resume dosing press again the START key,
otherwise, pressing the STOP/C key, the
quantity is cleared and it is possible to set a new
quantity.

3.3 USE OF EXTERNAL PROBE

The equipment is fitted with an auxiliary
precision electronic thermometer with a mobile
probe (6), usable at distances up to 5 metres.

Temperature readout on the display is continuous
(9), except when the program number appears.

3.4 SPECIAL FUNCTIONS

• Press the P key twice, and the device shows

the succession of the recipes stored in
memory.

• Holding the

amount of m

key for 10 seconds, the total

3

delivered by the machine
(with a decimal number) is indicated: see
example in Figure 9.

t o t

M E M

Figure -9

By pressing the STOP/C key, a number will
appear. This is the number of times divided
into 10, that the electrovalve has been
opened (see fig. 10).

E L. U

2 0 3

Figure -10

Pressing again the STOP/C key, the normal
visualization is restored.

NOTE: The totalizators will automatically
go to zero when they reach 999.9m3 and
9990 times respectively (visualized: 999).

• To prevent modification of the recipes, it is

possible to protect the setting and
modification operations, press the P key for
5"; the display indicates the wording as in
Figure 11, in which the code 147 has to be
entered.

Belshaw Bros., Inc. • 1750 22nd Ave. S. • Seattle, WA 98144 • Phone [phone] • Fax [phone]

8 MN-1906EN Domix 45 Water Mixer

c o d E

P r G

Figure -11

Then, press the P key and the display indicates
the wording as in Figure 12:

r E c i

A b i

With the START and STOP keys the
electrovalve opens and closes.

3.5 ERROR MESSAGES AND
CORRECTIVE ACTIONS

All error messages are accompanied by flashing
words and an intermittent acoustic signal. The
latter can be stopped with the STOP key. Using
the START key, the error message is cancelled
and the delivery starts again. However, pressing
the STOP command twice cancels the delivery.
The possible error messages and relevant
wordings are listed below.

3.5.1 Quantity counting error

After pressing START, this wording appears
after 12 seconds:

Ñ

E r r. LÒ

Figure -12

Press the 1 key, and the wording diS appears,
indicating that the recipe programming is
disabled; press the 2 key, and the wording Abi
appears, indicating that the recipe programming
is enabled.

Press P, and the normal visualization is restored.

• Free delivery: it is possible to exclude the

liter-counter counting (for example in case of
malfunction of the part) by means of the
special program P99:

F r E E

2 3. 5

2 3. 5

2 1. 7

Figure -14

Possible causes:

A) If no water comes out of the device:

• The cocks on the inlets of warm water

and/or cold water are not open. Check
that both are open and that the connection
to the pipes is correct.

• The inlet filters are obstructed. Clean

them.

• The electrovalve does not open. Contact

the Service.

B) If water comes out normally and this message

appears, it indicates a malfunction of the
liter-counter. Contact the Service.

2 1. 8

3.5.2 Probe error

The PrE wording appears on the display referred

Figure -13

Belshaw Bros., Inc. • 1750 22nd Ave. S. • Seattle, WA 98144 • Phone [phone] • Fax [phone]

to the damaged or wrongly connected probe.

Domix 45 Water Mixer MN-1906EN 9

Contact the Service for the replacement. In the
meantime, if the internal probe is broken, use the
external probe to check that the temperature is
correct.

3.5.3 Tension fall

If there is a tension fall during a water delivery,
the device stores the delivered quantity and
interrupts the delivery. When tension is restored,
the following wording appears:

Ñt E n SÒ

F A I

2 1. 7

Figure -15

Press START to complete the dosage.

For further information contact the Service.

However, it is possible to restart the machine
with the standard settings:

• Press simultaneously the keys 2 and 6 for 5

seconds: the device restores the default
values and restarts automatically. While
holding the keys, the display shows the
menu of figure 17 and indicates that the
standard values are being setting (manual
by-pass).

d o M

M A n

Figure –17

3.5.4 Parameter error

If, after switching the machine on, the following
message appears on the display:

Ñr A MÒ

d E F

Figure -16

some incongruous values have been found in the
machine parameters.

3.6 OPERATION INTERRUPTION

If, with tension available, all displays remain off,
it means that electrical supply does not reach the
main board, or the main board is damaged.

Possible causes:

A) Over-tension and/or supply fuse failure.

Open the fuse housing next to the supply
plug, take out the spare fuse and replace the
damaged one.

B) Damage to the actuators board or the main

board. Contact the Service.

Belshaw Bros., Inc. • 1750 22nd Ave. S. • Seattle, WA 98144 • Phone [phone] • Fax [phone]

10 MN-1906EN Domix 45 Water Mixer

4. MAINTENANCE INSTRUCTIONS

deliveries at the same temperature are carried
out.

To assure a long working life of the internal parts
of the device, the following periodic checks are
necessary:

3. To clean the external surface of the doser-

mixer, use a soft sponge and water or a
neutral detergent; for more resistant grime,

1. Clean the filters (3) regularly, particularly if

use alcohol or turpentine.

the water contains a high quantity of lime­scale.

2. When switching off the doser-mixer, always

set the temperature regulation knob (5) to its
mid position, to allow a minimum number of
moves in the mixer valve, particularly when

4.1 SPARE PARTS

Figure-7 on page 4 shows the machine overview
indicating the various components of the device
and, Table 2 (below) lists their description with
relevant spare parts code numbers.

POS. DESCRIPTION CODE - 230V VARIANTS - 110V

1 Cover with keyboard and electronics 3811046 ---

2 Regulation knob 3801208 ---

3 External temperature probe 3812511 ---

4 Actuators and supply board 3811549 3811537

5 Thermostatic element 4400351 ---

6 2 wire liter-counter 3801007 ---

7 Internal temperature probe 3812522 ---

8 Electrovalve assembly with coil 3801127 3801129

9 Coil for electrovalve 4400405 4400406

10 Filter – no return valve assembly 3801230 ---

11 Hot water ball gate valve (red, left) 3801216 ---

12 Cold water ball gate valve (black, right) 3801217 ---

--- Internal electrovalve group 4400451 ---

--- Supply flying socket 4400606 ---

--- Pump remote control flying socket 4400608 ---

--- Delivery Hose Ø 16mm 3801209 ---

Table 2

Belshaw Bros., Inc. • 1750 22nd Ave. S. • Seattle, WA 98144 • Phone [phone] • Fax [phone]

Domix 45 Water Mixer MN-1906EN 11