Fountain
Technical
Handbook
2100 Future Drive, Sellersburg, IN 47172
Tel: 812 246 7000 Fax: 812 246 9922
info@multiplex-beverage.com w www.multiplex-beverage.com
In accordance with our policy of continuous product development and
improvement, this information is subject to change at any time without notice.
00218009 Revision D July, 2002
Complete
System
Overview
Fountain Beverage
Dispensing Equipment
2100 Future Drive, Sellersburg, IN 47172
Phone: 812 246 7000 Fax: 812 246 9922
info@multiplex-beverage.com w www.multiplex-beverage.com
In accordance with our policy of continuous product development and improvement,
this information is subject to change at any time without notice.
00218010 Revision D July 2002
Multiplex Company, Inc.
Complete System Overview
Table of Contents
Ingredients Required to Manufacture Quality Carbonated Water ..........................................
Good Quality CO2 ................................................................................................
Clean Water .....................................................................................................
Cold Temperature ..............................................................................................
Proper Agitation .................................................................................................
1
1
1
1
1
Multiplex Post-mix Beverage System ............................................................................ 2
Water Filter System ................................................................................................ 3
Carbonation System ................................................................................................ 4
Carbonator Pump “off” ........................................................................................ 4
Carbonator Pump “on” ......................................................................................... 5
Liquid Level Control (Electrode Circuit) ........................................................................ 6
Circulating Carbonated Water Supply System ................................................................. 8
Single Carbonated Water Supply ................................................................................. 9
Dual Carbonated Water Supply .................................................................................. 10
Dual and Split Carbonated Water Supply ...................................................................... 11
Dispensing System ................................................................................................. 12
Maintenance Schedule ............................................................................................ 13
Periodic maintenance for soft drink equipment (listed by major components) ..................... 13
Dispensing stations ......................................................................................... 13
Beverage conduits .......................................................................................... 13
Air compressor .............................................................................................. 13
Refrigeration unit .......................................................................................... 13
Water filters ................................................................................................. 14
Syrup supply ................................................................................................. 14
CO2 gas supply .............................................................................................. 14
Periodic maintenance for soft drink equipment (listed by scheduled frequency) ................... 15
Daily (365 times per year) ................................................................................ 15
Every 4 months (3 times per year) ....................................................................... 15
00218010 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Complete System Overview
Ingredients Required to Manufacture Quality
Carbonated Water
Good Quality CO2
Multiplex Refrigeration Units are designed to operate properly on 90 psi (6.4 bar) of CO2
pressure.
Clean Water
Carbonated drinks are made up of over 83% water. Clean water is required for good taste and to
protect the equipment.
Cold Temperature
Multiplex Refrigeration Units use a cold carbonation system, water is carbonated in an ice cold
water bath. It is very important to dispense drinks below 39°F (4°C).
Proper Agitation
Multiplex carbonation systems are designed to give you the exact amount of agitation to give
you the proper carbonation.
CO2
Water
Temperature
Agitation
00218010 Revision B (KAK) 31 July, 2000
1
Multiplex Company, Inc.
Complete System Overview
Multiplex Post-mix Beverage System
Multiplex Post-mix beverage systems use filtered water from a filtered water supply system
and chill it as it passes through stainless steel cooling coils located in an ice cold water bath.
The water bath is maintained at 32°F (0°C) by a mechanical refrigeration system which
produces a large ice bank reserve to provide sufficient cooling for peak draw periods. This ice
reserve allows a relatively small refrigeration unit to maintain drink temperatures, drawing form
the ice reserve during heavy load periods and then re-establishing the ice bank during light draw
periods.
The chilled water passing through the water bath is mixed with carbon dioxide (CO2) in the
carbonated water supply system. This is when and where it becomes carbonated water in the
carbonation tank.
Syrup is also chilled as it passes through stainless steel cooling coils located in the ice cold
water bath. Chilled, the syrup is connected to one of several beverage tubes contained within a
beverage conduit. This conduit is then routed to a dispensing station.
The circulating carbonated water supply system allows for the circulation of carbonated
water through use of a pump to create an outlet and inlet carbonated water supply. Outlet and inlet
carbonated water supplies are connected to tubes contained within the same beverage conduit as
the syrup. This allows carbonated water to flow from the water bath to the dispensing station and
back, maintaining a constant beverage temperature throughout the system.
Ice cold carbonated water and syrup are dispensed from valves at the dispensing station.
Dispensing valves contain flow controls which allow for flow adjustment to maintain the proper
ratio of syrup to carbonated water. Syrup and carbonated water are released when the dispensing
valves are opened. This allows mixing to begin as escaping products are allowed to flow through the
valve nozzle. They continue to mix as they fall into the customer’s cup to complete the production
of a bottler-quality soft drink.
2
00218010 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Complete System Overview
Water Filter System
Incoming water pressure is to be maintained at 55 psig (3.9 bar) to ensure proper flow
throughout the system. An in-line water regulator and gauge controls high water pressure and
allows for pressure monitoring.
Water enters the pre-filter(s) that remove the coarse particles that are contained in the supply
water, protecting the fine filter.
Water flows from the pre-filter(s) to the taste/odor activated carbon filter, absorbing taste and
odor causing chemicals, such as chlorine and sulfur.
Finally, water runs through a fine filter, filtering out the finer particles left in the supply water,
thus protecting the equipment and helping to insure quality water for carbonation.
Pressure gauges located before and after the filtration system allow the monitoring of pressure
across the filter system, indicating clogged filters and the need for replacement.
To the
Carbonation System
Taster/Order Activated
Carbon Filter
55 psig (3.9 bar)
Incoming
Water
Regulator
Fine Filter
00218010 Revision B (KAK) 31 July, 2000
Pre-filter
3
Multiplex Company, Inc.
Complete System Overview
Carbonation System
Carbonator Pump “off”
Carbon dioxide (CO2) regulated to 90 psi (6.3 bar) passes through a single check valve, which
prevents water from backing up into the CO2 supply, and fills the carbonator tank with CO2.
The incoming filtered water at 55 psig (3.9 bar) feeds the brass carbonator pump, then
proceeds through a stainless steel cooling coil located in the 32°F (0°C) water bath. Chilled water is
then delivered to the double check valve on top of the carbonator tank. CO2 is prevented from
leaving the carbonator tank through the fresh water supply by the double check valve.
When the carbonator motor is “off”, the high CO2 pressure within the carbonator tank prevents
replacement water from entering the carbonator tank.
Liquid Level Control
Water
55 psig
(3.9 bar)
CO2
90 psig (6.3 bar)
55 psig (3.9 bar)
Cooling Coil
Check Valves
Carbonated
Water
Pick-up Tube
Electrodes
Carbonation
Tank
4
Motor
Ice Water Bath 32°F (0°C)
00218010 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Complete System Overview
Carbonation System (continued)
Carbonator Pump “on”
When the carbonated water level in the carbonator tank falls below both the electrodes, the
liquid level control will send electricity to the carbonator motor. The motor turns the carbonator
pump, which increases the water pressure from 55 psig (3.8 bar) to approximately 140 to 170 psig
(10 to 12 bar). This boosted water goes through the cooling coil in the water bath, through the
double check valve and overcomes the 90 psig (6.3 bar) CO2 pressure within the carbonator tank.
Water flowing through the orifice at the base of the check valve is broken into tiny droplets and
sprayed into the carbonator tank, absorbing CO2 to produce cold, quality carbonated water.
While the motor and pump is running, the carbonated water level in the tank will rise until it
reaches the low and then the high electrode, at which point the liquid level control will shut “off”
the electricity to the motor. Each time a sufficient amount of carbonated water is drawn from the
carbonation tank, the cycle will repeat.
Liquid Level Control
CO2
90 psig
(6.3 bar)
Water
55 psig
(3.9 bar)
140 psig
(10 bar)
Cooling
Coil
Check
Valves
Carbonated
Water Pickup Tube
Electrodes
Carbonation
Tank
00218010 Revision B (KAK) 31 July, 2000
Motor
Ice Water Bath 32°F (0°C)
5
Multiplex Company, Inc.
Complete System Overview
Liquid Level Control (Electrode Circuit)
Emptying - OFF
OFF
OFF
Power “off” to the
Pump Motor
6
ON
ON - Filling
ON
Power “on” to the
Pump Motor
00218010 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Complete System Overview
Liquid Level Control (Electrode Circuit)
(continued)
When the carbonator tank is full, carbonated water is touching both the low and high
electrodes and the liquid level control will not supply power to the carbonator motor.
When carbonated water is drawn out of the tank, it will first fall below the high electrode. This
opens the circuit between the “G” and “H” terminals of the liquid level control.
The continued draw of carbonated water from the tank will cause the level of carbonated
water to fall below the low electrode. This opens the circuit between the “G” and “L” terminals of
the liquid level control. With both circuits open, the liquid level control directs power to the
carbonator motor and the pump, turning it “on” and replenishing the supply of carbonated water in
the tank.
The carbonated water level will quickly rise to the low electrode and close the circuit between
the “G” and “L” terminals of the liquid level control.
Continuing to pump water into the tank, the level will next rise to the high electrode and close
the circuit between the “G” and “H” terminals of the liquid level control. This turns the motor
“off” and stops water from being pumped into the tank.
The electrodes work with the liquid level control to maintain the level of carbonated water in
the tank. Continuity through the carbonated water from both electrodes (low and high) to the tank
(ground) turns the carbonator motor “off”. No continuity from both electrodes to the tank turns the
carbonator motor “on”.
00218010 Revision B (KAK) 31 July, 2000
7
Multiplex Company, Inc.
Complete System Overview
Circulating Carbonated Water Supply System
Cold, carbonated water is pushed from the carbonator tank by 90 psig (6.3 bar) of CO2, up
through the pick up tube and out of the carbonator tank. It is then chilled as it flows through the
stainless steel cooling coil located in the 32°F (0°C) water bath. Feeding a stainless steel
circulating pump, the chilled and carbonated water is then forced up to the dispensing station.
Carbonated water from the circulating pump is connected to one of the two carbonated water
lines found within the beverage supply conduit. At the opposite end of the beverage conduit, the
supply line, along with the remaining return carbonated water line, is connected respectively to
the inlet and outlet ends of a turn-around manifold located in the beverage dispensing unit.
Returning carbonated water mixes with newly manufactured carbonated water as it is forced
out of the tank to replenish the supply in the circulating loop.
The circulating, carbonated water ensures that the syrups that are also contained within the
beverage conduit are properly cooled and that all finished drinks are drawn at 39°F (3.9°C) or less.
To Dispenser
Return
90 psig
(6.3 bar)
Circulating
Pump
8
Motor
Cooling
Coils
Water Bath
00218010 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Complete System Overview
Single Carbonated Water Supply
Tower 2
Tower 1
Circulating Pump
00218010 Revision B (KAK) 31 July, 2000
9
Multiplex Company, Inc.
Complete System Overview
Dual Carbonated Water Supply
Tower 2
Tower 1
“B”
Carbonated
Water Supply
“A”
Carbonated
Water Supply
10
00218010 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Complete System Overview
Dual and Split Carbonated Water Supply
Tower 2
Tower 1
“B”
Carbonated
Water Supply
“A”
Carbonated
Water Supply
00218010 Revision B (KAK) 31 July, 2000
11
Multiplex Company, Inc.
Complete System Overview
Dispensing System
Syrup at the refrigeration unit is pressurized and pushed through cooling coils located in the
32°F (0°C) water bath and then on to the dispensing valves. The push pressure is achieved by one of
two methods. One way is by applying direct gas pressure (air or CO2) on the surface of syrup stored
in stainless steel syrup tanks (figals) which is then connected to the cooling coil. Another way is to
use syrup pumps to draw syrup out of bag-in-box containers and then push the syrup through the
cooling coils.
Cold syrup flows from the cooling coils and into the beverage conduit where it is then kept cool
by circulating carbonated water to the final point of dispensing. Activating a dispensing valve allows
syrup and carbonated water to escape through the diffuser/nozzle assembly of the valve. The actual
mixing of the beverage occurs as the syrup and carbonated water enter the nozzle. As the beverage
falls from the nozzle, it continues to mix until captured in the customer’s cup, where mixing is
completed.
To ensure consistent mixing, the dispensing valves are equipped with adjustable flow controls
that react to line pressure changes, opening and closing orifices to keep a constant ratio of
carbonated water to syrup.
Water and Syrup
Dispense
Conduit
Syrup Tanks
60 psi (4.1 bar) Sugar
15 psi (1 bar) Diet
12
00218010 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Complete System Overview
Maintenance Schedule
This section provides a list of periodic maintenance tasks and the scheduled frequency required
to ensure the proper operation of your Multiplex dispensing equipment. To ensure quality
beverages, prevent down-time, and reduce costs, these tasks must be performed as indicated.
Periodic maintenance for soft drink equipment (listed by major
components)
Dispensing stations
Daily (365 times per year)
w
Take temperature of finished drinks. Pour off the first and take the temperature of the
second drink. The proper temperature of drinks must be 40°F (4°C) or less.
w
Remove nozzles and diffusers from each dispensing valve. Clean with soap and warm
water (not hot). Rinse with carbonated water and reinstall.
w
Flush all dispenser drains. Pour hot water down drains at closing.
Beverage conduits
Every 4 months (3 times per year)
w
Inspect beverage conduits for damage. Re-insulate and seal any uninsulated areas.
w
Inspect floor chases and seal any open chase ends.
Air compressor
Monthly (12 times per year)
w
Drain condensate water from air compressor tank.
Every 4 months (3 times per year)
w
Inspect air compressor filter and replace if clogged. Air filter must be replaced every 6
months.
w
Inspect air compressor to verify cut-in at 70 psi (4.8 bar) and cut-out at 90 psi (6.3 bar).
Adjust pressure switch if necessary.
w
Inspect system for air leaks and repair as required.
Refrigeration unit
Every 4 months (3 times per year)
w
Clean the refrigeration unit air-cooled condenser using a vacuum cleaner. If equipped
with water-cooled condenser, verify the water discharge temperature is at 105°F (41°C).
Adjust water modulating valve if necessary.
w
Inspect water bath to verify water level is at the top of stand pipe. If below, add water
and repair water makeup device. If excessive amount of water is flowing over stand
pipe, locate leak within bath and repair.
w
Inspect ice bank within the water bath to verify proper size ice bank and clarity. Look
for uniform, 2" to 4" thick ice bank.
w
Drain, clean, and refill water bath.
w
Inspect agitator motor and ensure proper operation.
w
Inspect the circulating motor/pump assembly. Clean strainer and oil motor.
w
Inspect the carbonating motor/pump assembly. Clean strainer and oil motor.
w
Inspect entire system for leaks and repair as required.
00218010 Revision B (KAK) 31 July, 2000
13
Multiplex Company, Inc.
Complete System Overview
Maintenance Schedule
(continued)
Periodic maintenance for soft drink equipment (listed by major
components) (continued)
Water filters
Every 4 months (3 times per year)
w
Verify that incoming water pressure is not less than 40 psi (2.8 bar) or greater than 60
psi (4.1 bar). If equipped with a water regulator, verify proper setting of 55 psi (3.8 bar).
Adjust if necessary.
w
If pressure is low, inspect water filter cartridges to ensure they are able to supply
adequate water pressure under normal system flow. Replace if unable to provide
minimum 20 psi (1.4 bar) under load.
Syrup supply
Daily (365 times per year)
w
Clean general area of syrup hookup with soap and warm water. Rinse off all soap.
Every 4 months (3 times per year)
w
Inspect syrup lines for proper flavor identification labels. Replace labels if necessary.
w
Disconnect syrup containers. Clean connector with soap and warm water. Rinse with
plain water and reconnect to syrup containers.
CO2 gas supply
Every 4 months (3 times per year)
w
Inspect pressure setting at CO2 high pressure regulator. Verify proper 90 psi (6.3 bar)
pressure setting. Adjust if necessary.
14
w
Inspect pressure setting at syrup pressure regulators. Verify proper pressure setting.
Adjust if necessary.
w
Inspect system for CO2 leaks, repair as required.
00218010 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Complete System Overview
Maintenance Schedule
(continued)
Periodic maintenance for soft drink equipment (listed by scheduled
frequency)
Daily (365 times per year)
w
Take temperature of finished drinks. Pour off the first and take the temperature of the
second drink. The proper temperature of drinks must be 40°F (4°C) or less.
w
Remove nozzles and diffusers from each dispensing valve. Clean with soap and warm
water (not hot). Rinse with carbonated water and re-install.
w
Flush all dispenser drains. Pour hot water down drains at closing.
w
Clean general area of syrup hookup with soap and warm water. Rinse off all soap.
Every 4 months (3 times per year)
w
Using Brix cup and syrup separator, check for proper carbonated water flows (standard
flow: 5 oz. in 4 seconds, fast flow: 10 oz. in 4 seconds) and syrup to water ratios at each
dispensing station. Adjust as required.
w
Inspect beverage conduits for damage. Re-insulate and seal any uninsulated areas.
Inspect floor chases and seal any open chase ends.
w
Inspect air compressor filter and replace if clogged. Air filter must be replaced every six
months.
w
Inspect air compressor to verify cut-in at 70 psi (4.8 bar) and cut-out at 90 psi (6.3 bar).
Adjust pressure switch if necessary.
w
Inspect system for air leaks. Repair as required.
w
Clean the refrigeration unit air-cooled condenser using a vacuum cleaner. If equipped
with water-cooled condenser, verify the water discharge temperature is at 105°F (41°C).
Adjust water modulating valve if necessary.
w
Inspect water bath to verify water level is at the top of stand pipe. If below, add water
and repair water makeup device. If excessive amount of water is flowing over stand
pipe, locate leak within bath and repair.
w
Inspect ice bank within the water bath to verify proper size ice bank and clarity. Look
for uniform, 2" to 4" thick ice bank.
w
Drain, clean, and refill water bath.
w
Inspect agitator motor and ensure proper operation.
w
Inspect the circulating motor/pump assembly. Clean strainer and oil motor.
w
Inspect the carbonating motor/pump assembly. Clean strainer and oil motor.
w
Inspect entire system for leaks and repair as required.
w
Verify that incoming water pressure is not less than 40 psi (2.8 bar) or greater than 60
psi (4.1 bar). If equipped with a water regulator, verify proper setting of 55 psi (3.8 bar).
Adjust if necessary.
w
If pressure is low, inspect water filter cartridges to ensure they are able to supply
adequate water pressure under normal system flow. Replace if unable to provide
minimum 20 psi (1.4 bar) under load.
w
Inspect syrup lines for proper flavor identification labels, replace labels if necessary.
w
Disconnect syrup containers, clean connector with soap and warm water, rinse with
plain water and reconnect to syrup containers.
w
Inspect pressure setting at CO2 high pressure regulators. Verify proper 90 psi pressure
setting. Adjust if necessary.
w
Inspect pressure setting at syrup pressure regulators. Verify proper pressure setting.
Adjust if necessary.
w
Inspect system for CO2 leaks. Repair as required.
00218010 Revision B (KAK) 31 July, 2000
15
250 Old Ballwin Road w St. Louis, Missouri 63021-4800
Tel: 636.256.7777 w Fax: 636.527.4313
info@multiplex-beverage.com w www.multiplex-beverage.com
In accordance with our policy of continuous product development and improvement,
this information is subject to change at any time without notice.
00218010 Revision B (KAK) 31 July, 2000
Component
Parts
Workbook
Fountain Beverage
Dispensing Equipment
250 Old Ballwin Road w St. Louis, Missouri 63021-4800
Tel: 636.256.7777 w Fax: 636.527.4313
info@multiplex-beverage.com w www.multiplex-beverage.com
In accordance with our policy of continuous product development and improvement,
this information is subject to change at any time without notice.
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Table of Contents
Water Regulator .................................................................................................... 1
Function of the water regulator .............................................................................. 1
Failure of the water regulator ................................................................................ 1
Water Filter .........................................................................................................
Function of the water filter ...................................................................................
Failure of the water filter .....................................................................................
Solids ..........................................................................................................
Suspended ....................................................................................................
2
2
2
2
2
Accumulator Tank Pressures ...................................................................................... 3
Water booster tank ............................................................................................. 3
Filtered water accumulator tank ............................................................................. 3
Primary Regulator .................................................................................................. 4
Function of the primary regulator ........................................................................... 4
Failure of the primary regulator ............................................................................. 4
Secondary Regulator (Syrup Regulator) ......................................................................... 5
Function of the secondary regulator ......................................................................... 5
Failure of the secondary regulator ........................................................................... 5
Carbonator Pump and Motor ...................................................................................... 6
Function of the carbonator pump and motor ............................................................... 6
Failure of the carbonator pump and motor ................................................................. 6
Carbonator Pumps ..................................................................................................
Determining the strength of a carbonator pump ..........................................................
Carbonator pumps chart .......................................................................................
Carbonator pumps metric chart ..............................................................................
Procedure for properly adjusting the relief valve setting on a pump ..................................
7
8
8
8
8
Low Water Pressure Safety Circuit .............................................................................. 9
Check Valves ....................................................................................................... 10
Function of the check valves ................................................................................. 10
CO2 Check Valves ........................................................................................... 10
Water Check Valves ........................................................................................ 10
Failure of the check valves ................................................................................... 10
CO2 Check Valves ........................................................................................... 10
Water Check Valves ........................................................................................ 10
Water Bath Feeder ................................................................................................ 11
Function of the water bath feeder .......................................................................... 11
Failure of the water bath feeder ............................................................................ 11
Carbonator Tank ................................................................................................... 12
Function of the carbonator tank ............................................................................ 12
Failure of the carbonator tank ............................................................................... 12
Electrode ........................................................................................................... 13
Function of the electrode .................................................................................... 13
Failure of the electrode ...................................................................................... 13
Electrodes .......................................................................................................... 14
Liquid Level Control .............................................................................................. 15
Function of the liquid level control ......................................................................... 15
Failure of the liquid level control ........................................................................... 15
Cooling Coils ....................................................................................................... 16
Function of the cooling coils ................................................................................. 16
Failure of the cooling coils ................................................................................... 16
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Complete System Overview
Table of Contents
(continued)
Circulating Pump and Motor ..................................................................................... 17
Function of the circulating pump and motor .............................................................. 17
Failure of the circulating pump and motor ................................................................ 17
How to flush a contaminated system ....................................................................... 17
Alternate Suppliers for Carbonator/Circular Motors ......................................................... 18
Conduit .............................................................................................................. 19
Function of conduit ............................................................................................ 19
Failure of conduit .............................................................................................. 19
Refrigeration Compressor ........................................................................................ 20
Function of the refrigeration compressor .................................................................. 20
Failure of the refrigeration compressor .................................................................... 20
Multiplex Refrigeration Components ........................................................................... 21
Normal Operating Pressures of Domestic Refrigeration Units .............................................. 24
Head pressure of domestic refrigeration units ............................................................ 24
Evaporator pressure of domestic refrigeration units ..................................................... 24
Normal Operating Pressures of International Refrigeration Units ......................................... 25
Head pressure of international refrigeration units ....................................................... 25
Evaporator pressure of international refrigeration units ................................................ 25
Condenser .......................................................................................................... 26
Function of the condenser ................................................................................... 26
Failure of the condenser ...................................................................................... 26
Air Cooled Condenser ...................................................................................... 26
Water Cooled Condenser .................................................................................. 26
Equipment Installation Instructions for Multiplex Remote Condenser and Pre-charged Refrigeration
Lines ................................................................................................................. 27
Pre-installation requirements ................................................................................ 27
Multiplex Remote Condenser Requirements ........................................................... 27
Multiplex Pre-charged Refrigeration Lines Requirements ........................................... 27
Installing the multiplex remote condenser ................................................................ 27
Connecting the pre-charged refrigeration lines .......................................................... 28
How to re-charge the line sets .............................................................................. 28
Proper Refrigeration Technique for Running the Line Set ........................................... 29
Aeroquip Connection .......................................................................................... 29
Expansion Valve or Cap Tube .................................................................................... 30
Function of the expansion valve or cap tube .............................................................. 30
Failure of the expansion valve or cap tube ................................................................ 30
Evaporator Coil .................................................................................................... 31
Function of the evaporator coil ............................................................................. 31
Failure of the evaporator coil ................................................................................ 31
Water Bath ......................................................................................................... 32
Function of the water bath ................................................................................... 32
Failure of the water bath ..................................................................................... 32
Agitator Motor ..................................................................................................... 33
Function of the agitator motor .............................................................................. 33
Failure of the agitator motor ................................................................................ 33
Ice Bank Control ................................................................................................... 34
Function of the ice bank control ............................................................................ 34
Failure of the ice bank control .............................................................................. 34
Head Pressure Control (used on Remote Condensing units only) .......................................... 35
Function of the head pressure control ..................................................................... 35
Failure of the head pressure control ....................................................................... 35
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Table of Contents
(continued)
Refrigeration Unit, Line, and Condenser Cross Reference Chart .......................................... 36
Condenser unit ................................................................................................. 36
Refrigeration line sets ........................................................................................ 36
Refrigeration units ............................................................................................. 37
High Pressure Cut-out (limiting switch) ........................................................................ 38
Dispensing Valves .................................................................................................. 39
Function of the dispensing valves ........................................................................... 39
Failure of the dispensing valves ............................................................................. 39
Flow Controls ....................................................................................................... 40
Function of the flow controls ................................................................................ 40
Failure of the flow controls .................................................................................. 40
Keyboards and Timers ............................................................................................ 41
Function of the keyboards and timers ...................................................................... 41
Failure of the keyboards and timers ........................................................................ 41
Multiplex Programmable Portion Control Timers ............................................................. 42
What’s New at Multiplex ......................................................................................... 42
Instructions for Proper Dispensing Valve Calibration (Flow, Ratio, and Volume) using the 4-Size
Portion Control .................................................................................................... 43
Flow (to set the water flow rate only) ..................................................................... 43
Ratio (water to syrup mixture) .............................................................................. 43
Volume (setting drink portion sizes) ........................................................................ 43
Special feature ................................................................................................. 44
Test Procedures ................................................................................................... 45
Model MPC64A timer/selection pad ......................................................................... 45
Pin identification .............................................................................................. 45
J-17 calibration button and light ............................................................................ 45
Dual Transformers ................................................................................................. 46
Service Bulletin .................................................................................................... 47
MOV’s field testing ............................................................................................ 47
New Model MPC84A Portion Control Board .................................................................... 48
Instructions for Multiplex Model MPC84AT Portion Control Board with Top-off ......................... 49
Run Mode ........................................................................................................ 49
Size Buttons ................................................................................................. 49
STOP-FILL Buttons .......................................................................................... 49
Program Mode .................................................................................................. 49
Entering the Program Mode ............................................................................... 49
Volume Sizing ............................................................................................... 49
Flow Rate Calibration ...................................................................................... 49
One Station Sets All ........................................................................................ 49
Exiting the Program Mode ................................................................................. 49
Top-off program mode ........................................................................................ 49
Entering the Top-off Program Mode ..................................................................... 49
Enabling and/or Disabling the individual station Top-off ............................................ 49
Exiting the Top-off Program Mode ....................................................................... 49
Test mode ....................................................................................................... 49
Sanitation mode ................................................................................................ 49
McDonald’s Portion Control Timer .............................................................................. 50
Sitco 4-Selection Portion Control Timers ...................................................................... 51
Adjusting portion control for size of drinks dispensed ................................................... 51
Cancel/pour .................................................................................................... 51
Installation ...................................................................................................... 51
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Water Regulator
Function of the water regulator
Regulates the incoming water pressure to 55 psi (3.8 bar) preventing “flooding” of the carbonator
tank in locations with high water pressure.
Failure of the water regulator
An unregulated water supply can overcome the 90 psi (6.2 bar) CO2 pressure in the carbonator
tank and prevent the proper absorption of CO2 into the water resulting in poor carbonation.
Notes:
w
Look for fluctuations in pressure (poor city water pressure)
w
To increase pressure turn clockwise
w
Don’t assume plumber flushed pipes
w
Regulators can be taken apart and cleaned
00218011 Revision B (KAK) 31 July, 2000
1
Multiplex Company, Inc.
Complete System Overview
Water Filter
Function of the water filter
Filters out both solid and suspended impurities found in the water supply. Preventing damage to
components, insuring proper absorption of CO2 into the water and a drink free of “off” taste.
Failure of the water filter
Solids
With use, filter will become restricted to the point of starving water pumps, effecting drink
recovery rate.
Suspended
With use, filters will become saturated, effecting drink taste.
Activate Filter by (activate
when system is not in use):
1.
Put filter on by-pass.
2.
Open activation valve (to
relieve pressure).
3.
Replace cartridge.
4.
Slowly take filter off bypass (leaving activation
valve open).
5.
Activate for proper
amount of time.
Notes:
w
Examine water pressure gauge, if pressure drops 40 psi (2.8 bar) or more, when
carbonator pumps cycle, put filter on by-pass and replace
w
Must activate filter to fully coat element and allow for good filtration and filter life
(Everpure only)
w
Filter life is determined by:
Filter Activation
Water Volume
Water Quality (dirt)
Water Pressure
2
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Accumulator Tank Pressures
Accumulator tanks have a rubber diaphragm in the middle of the steel tank, air is stored on one
side of the diaphragm and water is stored on the other side, a plastic liner protects the steel from
rust. Multiplex uses accumulator tanks for several purposes:
Water booster tank
A water booster pump is used to increase the incoming water pressure to 65 psi (4.5 bar) to 85 psi
(6.0 bar). We then store that higher pressure water in an accumulator tank. As a result, the pump
isn’t running every time water is needed. The air in the tank gives the water a nice push out of the
tank so that the water pressure slowly drops, allowing the pump to cycle on run for a short period of
time and then cycle off. The air charge of this tank should be 60 psi (4.1 bar) to 65 psi (4.5 bar).
Filtered water accumulator tank
Filtered water is stored in an accumulator tank to be used when the carbonator pumps demand
more water than will flow through your restricted water filters, and then slowly refill the tank when
the pumps shut “off”. This enables you to use your filters for a longer period of time. The air
charge of this tank should be 15 psi (1.0 bar) to 20 psi (1.4 bar).
The air charge in the tank should be filled or checked with no water pressure to the tank,
because once you have water pressure applied to the tank the air will compress and equalize with
the water pressure and you will get a false reading.
It is very important to use air and not CO2 to charge the tank, because CO2 will eventually bleed
through the rubber diaphragm, thus reducing the charge in the tank.
On the bigger WX103 tank, when used as a water booster tank, it is critical to have the 60 psi
(4.1 bar) to 65 psi (4.5 bar) air charge, because if the air pressure drops below 45 psi (3.1 bar), the
diaphragm will break.
S12196
00218011 Revision B (KAK) 31 July, 2000
3
Multiplex Company, Inc.
Complete System Overview
Primary Regulator
Function of the primary regulator
Regulates the CO2 tank pressure to maintain a constant 90 psi (not over, not under) for the
production of carbonated water.
Failure of the primary regulator
Low pressure or a “sluggish” regulator will cause poor absorption of CO2 into the water resulting
in poor carbonation.
High pressure or a “creeping” regulator will cause increased absorption of CO2 into the water
resulting in over carbonation.
90 psi (6.2 bar)
Notes:
4
w
Check with bubble soap around adjustment screw (for leaking diaphragm)
w
Creeping can be caused by a faulty cartridge or a bad diaphragm
w
CO2 gas bursting from the relief valve on regulator could be caused by a defective or
frozen regulator
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Secondary Regulator (Syrup Regulator)
Function of the secondary regulator
Regulates the CO2 or air pressure used to push the syrups to the dispensing valves.
Failure of the secondary regulator
Low pressure or a “sluggish” regulator will cause an insufficient supply of syrup during
dispensing, resulting in drinks that taste over carbonated (fast dispersing foam).
High pressure or a “creeping” regulator will cause increased supply of syrup during dispensing,
resulting in drinks that taste flat and under carbonated (slow lingering foam).
w Letting syrup tanks to empty or a
defective leaking syrup disconnect
will cause air in the lines and
foaming at the dispensing valve
(especially at the slab stores with
underground chases).
15 psi
(1 bar)
Diet
60 psi
(4.1 bar)
w To clear activate both valves at
once until air clears.
w When jumping syrup tanks, always
put the new thank on the front
(syrup feed side) and move the
partial tank to the back (gas feed
side).
Notes:
w
Check for leaks with bubble soap (always rinse soap from tubing).
w
Cartridge could cause pressure to decrease, diaphragm could cause increase
w
Sticking check/relief valve can cause lower pressure to a tank or allow syrup to back up
into the regulator (remove front of regulator, check for syrup - can be cleaned with
warm water)
w
To increase pressure, turn clockwise
w
Syrup tank disconnect not properly seated or defective could cause restriction
00218011 Revision B (KAK) 31 July, 2000
5
Multiplex Company, Inc.
Complete System Overview
Carbonator Pump and Motor
Function of the carbonator pump and motor
Increases the pressure of the water, to overcome the CO2 pressure and manufacture/replenish
the carbonated water supply within the carbonator tank.
Failure of the carbonator pump and motor
A weak or defective carbonator pump or motor (key) will cause poor carbonation and limit the
capacity of the unit to manufacture carbonated water.
To determine the approximate
cycle time:
1.
Right after the carbonator kicks
off, draw the carbonated water
into a volume cup until the carbonator starts again.
2.
Note how many ounces you have
and multiply by 0.28 to determine
how many seconds your cycle time
should be.
Coupling
Clamp
(100 GPH pump =
3.56 oz/second)
Note: A unit with two 100 GPH pumps
feed the same carbonator tank, multiply by 0.14
Must have
250 psi (17.2 bar) relief
valve setting
Notes:
w
Check water pressure with pumps running (10 psi [0.7 bar] minimum)
w
To adjust relief valve setting, dead head to gauge (incoming water pressure + 250 relief
setting)
w
6
Check strainer
w
Check for frozen coil in water bath (water to carbonator tank coil)
w
Check for power to the motor
w
Make sure pump turns freely
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Carbonator Pumps
00218011 Revision B (KAK) 31 July, 2000
7
Multiplex Company, Inc.
Complete System Overview
Carbonator Pumps
(continued)
All Multiplex equipment requires carbonator
pumps with a 250 psi (17.6 bar) relief setting.
w
w
This relief valve is designed to relieve in emergency situations only (when you have a serious restriction on the outlet of the pump. For
example, a freeze up of the cooling coil in
the water bath, etc.)
A standard carbonator pump has a 170 psi (12
bar) relief valve setting. Multiplex equipment
generates quite a bit of back pressure, thus
causing the standard 170 psi (12 bar) pump to
relieve excessively. This causes wear to the
relief valve, prematurely weakening the
pump.
Determining the strength of a
carbonator pump
Note: Do not be dispensing drinks during the test.
1.
Dispense carbonated water until the carbonator pump cycles on, then stop.
2.
Wait for the carbonator to cycle “off”, then
turn “off” the electrical switch for the
carbonator.
3.
Dispense exactly 50 fl oz (2 L) of carbonated
water only.
4.
Turn “on” the electrical switch for the carbonator and time how many seconds it takes
to cycle “off”. This is the actual cycle time.
5.
From the chart on the following page, determine the expected cycle time.
For example:
50 ounces x .28, for a 100 GPH pump =
14 seconds
2 liters x 9.52 for a 378.5 LPH pump = 19 seconds
6.
If your actual cycle time is much greater
than your expected cycle time, your pump
has been weakened and the capacity of your
equipment has been reduced.
Carbonator pumps chart
Gallon Per Hour
100
125
200
240
Ounces Per Second
3.56
4.44
7.11
8.53
Multiplier
0.28
0.23
0.14
0.12
Carbonator pumps metric chart
Liters Per Hour
60 Hz
50 Hz
378.5
318.2
473
397.6
757
636.3
908.5
763.7
Liters Per Second
60 Hz
50 Hz
0.105
0.088
0.131
0.110
0.210
0.177
0.252
0.212
Multiplier
60 Hz
50 Hz
9.52
11.36
7.63
9.09
4.76
5.65
3.97
4.72
Procedure for properly adjusting
the relief valve setting on a pump
1.
Remove the large acorn nut on the top side of
the pump.
2.
Mount a gauge on the outlet flow of the pump
(as shown, to totally block the discharge flow).
3.
Turn “on” the pump. While the pump is running, adjust the relief valve screw so that the
gauge reads 275 psi (19.3 bar) (250 psi
[17.6 bar] relief setting + 25 psi [1.7 bar]
safety factor).
4.
Reassemble.
8
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Low Water Pressure Safety Circuit
If water pressure is greater than 4 psi (0.3 bar), the pressure switch will be open and not allow
electricity to pass, and the relay will be closed and allow electricity to flow to the motor.
If the water pressure drops below 4 psi (0.3 bar), the pressure switch will close and allow
electricity to flow to the relay, heating the relay, causing it to open, stopping the electricity from
flowing to the motor.
If the water pressure then goes above 4 psi (0.3 bar), the pressure switch will again open,
stopping the electricity from flowing to the relay, the relay will start to cool, after about 3 minutes
the relay will close, again sending electricity to the motor.
Relay
Motor
Pressure Switch
Line connects to the Pump
Inlet Water Supply
S12296.pm5
00218011 Revision B (KAK) 31 July, 2000
9
Multiplex Company, Inc.
Complete System Overview
Check Valves
Function of the check valves
Prevents the back-flow of a liquid or gas by allowing flow in one direction only.
CO2 Check Valves
Single check valve for incoming CO2 to prevent water from backing up into the regulator and CO2
tank.
Water Check Valves
Double check valve and or back-flow preventer to keep CO2 from backing up into the water
supply, and to provide a “shower” of water into the carbonator tank to absorb more CO2.
Failure of the check valves
CO2 Check Valves
Liquid could back up into gas regulators and/or CO2 tank causing damage.
Water Check Valves
CO2 could back up into the plain water supply or cause back flow preventer to dispel CO2 or
water into the water bath.
Vented Double Check Valve
Double Check Valve
Back-flow
Preventer
(Vent)
Notes:
10
w
Could restrict water flow if sticking
w
Check for CO2 escaping from vent hole or
w
Slowly disconnect line from top of check valve, if anything is escaping, check valve
needs to be cleaned or replaced
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Water Bath Feeder
Function of the water bath feeder
To replenish water in the water bath and skim the surface preventing bacterial buildup.
Failure of the water bath feeder
Restricted will not allow recovery resulting in low water level and dirt buildup. Uncontrolled
flow will effect cooling capacity causing poor ice bank buildup.
Restrictor and adjustable Relief Valve
Cap Tube and 130 psi (9 bar) Relief Valve
Notes:
w
Water released when the carbonator motor runs
w
Old machines have float type fillers (when the water drops below the float level it
allows more water into the bath)
w
If water continually runs down the stand pipe, check the rubber seat in the relief valve
or float
00218011 Revision B (KAK) 31 July, 2000
11
Multiplex Company, Inc.
Complete System Overview
Carbonator Tank
Function of the carbonator tank
To provide a pressure vessel to mix water and CO2 to manufacture/store carbonated water.
Failure of the carbonator tank
Stainless steel design insures relatively few problems. However, the many connection points
require occasional checks for CO2 or water leaks.
Pick-up Tube
Water Inlet
CO2 Inlet
Notes:
12
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Electrode
Function of the electrode
Dual electrodes monitor carbonated water level in the carbonator tank. Electrodes signal the
liquid level control and advise it of when to switch on the carbonator pump and motor.
Failure of the electrode
An open electrode circuit of insulated electrode(s) will cause the carbonator pump and motor to
run continuously. Grounded electrodes will not allow the liquid level control to switch “on” the
carbonator pump and motor. Shorted electrodes will cause short cycling of the carbonator pump and
motor.
Notes:
w
Could short cycle because of a short to ground or switched electrode wire leads
w
Check for leaks in cap or gasket
w
Check wires from liquid level control to electrode (broken, bare or shorted)
00218011 Revision B (KAK) 31 July, 2000
13
Multiplex Company, Inc.
Complete System Overview
Electrodes
Special care must be taken to use the correct length electrodes in each carbonator tank. Below
are listed the refrigeration units with correct size for each.
Electrode
Refrigeration Unit
Model 11H
Model 2803
Probe Length
7.9" Red
10.8" Black
5.9" Red
8.8" Black
Model 2000
Model 1200
Model 72
Model 50
Model 39
Model 38H
Model 11
Model 3410
Model 3610
Model 50H
Model 44
Model 37
Model 37F
Model 37T
00701216
(1" Cap)
7.5" and 5.5"
00210828
(1" Cap)
9.5" and 5.5"
Model 44
Model 44K
Y0212106
Y0212105
Y0212104
Y0212104
00213554
00213553
6.2" Red
8.9" Black
11.6" White
11.6" White
9.5" Black
5.5" Red
00701214
(1" Cap)
00211977
00211978
00211979
5.5"
6.9"
9.5"
Model CPSS
Model 44
(Limited Unit Run)
3-Probe Assembly
14
Part Number
Y0208031
Y0208032
Y0208029
Y0208030
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Liquid Level Control
Function of the liquid level control
Switches “off” and “on” the carbonator pump and motor when the electrodes indicate a full or
empty tank. Continuity across L and H to G cause the liquid level control to switch “off” the
carbonator pump and motor. Open circuits across L and H to G cause the liquid level control to
switch “on’ the carbonator pump and motor.
Failure of the liquid level control
Defective liquid level control will cause the carbonator pump and motor to run continuously or
not at all.
Note: For proper voltage meter reading, you must test to ground or you will get a ghost reading.
Notes:
w
90% control fails closed (motor runs all the time)
10% control fails open (motor does not run)
w
If you start two pumps with one liquid level control, you must use the heavy duty 15 AMP
control (P.N. 208162)
00218011 Revision B (KAK) 31 July, 2000
15
Multiplex Company, Inc.
Complete System Overview
Cooling Coils
Function of the cooling coils
Located within the 32°F water bath. Coils allow heat to be removed from the syrup, water and
carbonated water supply lines.
Failure of the cooling coils
Improperly located cooling coils found outside the designed retaining basket may freeze-up if
touching the ice bank.
Notes:
w
16
Check coils for freezing (ice touching the coils)
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Circulating Pump and Motor
Function of the circulating pump and motor
Circulates coils carbonated water from the refrigeration unit up to the dispensing valves and
back to be re-chilled. This keeps the syrups, water and carbonated water continually chilled.
Failure of the circulating pump and motor
A weak or defective circulating pump or motor will cause warm drinks at the dispensing valves.
How to flush a
contaminated system
1.
Take the fittings off the circulating pump.
2.
Plug one line.
3.
Turn “on” water.
4.
Turn “off” the water on the
CO2.
5.
Plug other line.
6.
Repeat.
Carbonated
Water Strainer
Coupling Key
Notes:
w
Draw about one gallon of carbonated water if temperature drops, replace pump
w
Verify motor is turning (check power to the motor)
w
Verify coupling key is operational
w
Verify pump turns freely
w
Check carbonated water strainer (if equiped with machine)
w
100 gallon pump = fast flow system
50 gallon pump = standard flow system
w
When a pump goes out it can cause black specks to contaminate the carbonated water
circuit (carbon veins in the pump breaking up) you must flush circuit
00218011 Revision B (KAK) 31 July, 2000
17
Multiplex Company, Inc.
Complete System Overview
Alternate Suppliers for Carbonator/Circular
Motors
In 1992, Multiplex Engineering established P.N. 00213596 as the standard motor for all carbonator
and circular motor applications. It is a 1/3 hp dual voltage (110-120/220-240 VAC), 50/60 Hz motor.
Until recently, this motor was supplied to us only by General Electric.
We now have two additional sources, Motors & Armatures (MARS) and Emerson Electric. The
MARS motor has been approved and authorized for production while the Emerson motor is
undergoing life testing in our laboratory.
While all three motors are equivalent, the high and low voltage hookups are different for each
motor. Illustrated below are the connections for high and low voltage for each motor.
Line (110 VAC)
Line (110 VAC)
White
Brown
Line (110 VAC)
Brown
White
110 VAC
Emerson (110 VAC)
G.E. (110 VAC)
White
Mars (110 VAC)
Line (220 VAC)
Line (220 VAC)
Line (220 VAC)
White
Brown
Brown
220 VAC
Emerson (220 VAC)
18
G.E. (220 VAC)
Mars (220 VAC)
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Conduit
Function of conduit
Insulated beverage tubing used to move and maintain cold syrup, water, and carbonated water
from the refrigeration unit to the dispensing station.
Failure of conduit
Temperature will not be maintained to the dispensing station if the conduit is improperly
insulated or if the insulation becomes saturated.
Air tight seal to prevent foreign matter from
entering the chase and prevent condensation.
Notes:
w
Must be well insulated
00218011 Revision B (KAK) 31 July, 2000
19
Multiplex Company, Inc.
Complete System Overview
Refrigeration Compressor
Function of the refrigeration compressor
Refrigeration pump which draws a low pressure gas on the cooling side of the refrigeration cycle
and squeezes or compresses the gas into high pressure on the condensing side of the cycle.
Failure of the refrigeration compressor
An inoperative or weak compressor would adversely effect the capability of the unit to
manufacture ice.
Start Relay
(relay over 1/3 hp looks like square box)
Start Relay starts the Compressor and then
goes into the “run” mode.
To install, look for a label marked
“Top” or for “ á ”.
Start capacitor (plastic)
Run capacitor (metal)
To test, use capacitor tester.
Can loose one leg, but it may be fuse
and not contactor (use wire diagram).
Refrigeration Compressor
Contactor
2-Pole Single Phase
3-Pole Three Phase
Notes:
20
w
Check amp load on compressor
w
Check water bath feeder, or for leak somewhere in water bath (look at stand pipe)
w
Check cleanliness of condenser (temperature of water on water cooled units (100°F 105°F)
w
Check room temperature
w
Check refrigeration charge
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Multiplex Refrigeration Components
Unit
2803A,
2803W,
75A
Refrig
R-12
2803AX,
2803W
R-12
2803A,
2803W
R-22
150A
R-12
11A
R-12
2803A,
2803W,
75A
R-12
4205A
R-12
4205HA,
150MA,
11MA
R-22
11AZ
R-12
38R
R-12
38H, 38A,
38R, 38W,
39SC,
38HAC
300MA,
44KW,
44W, 300A
R-12
R-502
38HAX,
38HWX
R-12
11MAX
R-22
44A, 44R,
44KA,
44KR
R-12
Compressor
Multiplex
Manufacturer
00755104
EMB-E5187B117VG20
(0.33 hp, 1 Phase,
115 VAC)
00755107
EMB-E5187A117CA20C
(0.33 hp, 1 Phase,
220 VAC)
00213997 EMB-E6210E-217RA
(0.33 hp, 1 Phase,
220 VAC)
00755099
TEC-AJ6435AAJ311BT-124C4
(0.5 hp, 1 Phase,
115 VAC)
00755090
TEC- 165-B4,
AJ7441A-AJ530AT
(0.5 hp, 1 Phase,
115 VAC)
00213979
EMB-E6210E217RG20
(0.33 hp, 1 Phase,
115 VAC)
00211108 AJ7441A-AJ530AT165-A4
(0.5 hp, 1 Phase,
115 VAC)
00212830 AK9442E-AK165AT035-B4
(0.5 hp, 1 Phase,
115 VAC)
00755092 AJ7441A-AJ530J165-B4
(0.5 hp, 1 Phase,
240 VAC)
00755021 AJ7465A-AJ201AT206-A4
(0.75 hp, 1 Phase,
115 VAC)
00755095
TEC-AJ7465ABAJ201AT-206-B4
(0.75 hp, 1 Phase,
115 VAC)
00211147
TEC-AK947JAK160ET-032-C4
(0.75 hp, 1 Phase,
230 VAC)
00755080
AJ465BBXAJ201JT-206-B4
(0.75 hp, 1 Phase,
240 VAC)
00214229 TEC-AK9455EBXAK167JT-035-B4
(1 hp, 1 Phase,
230 VAC)
00755097
TEC-AH7480AAH160FT-083-A4
(1.4 hp, 1 Phase,
230 VAC)
00218011 Revision B (KAK) 31 July, 2000
Start
Start Relay
Capacitor
00755106
00215135
Aspera
145175 MFD
TI9660040182
165 VAC
00755109
00215135
Aspera
(145-175 MFD
TI9660040182
165 VAC)
Run
Capacitor
N/A
00755109
00215135
Aspera
(145-175 MFD
TI9660040149
165 VAC)
00207166
00207186
Aspera
(88-106 MFD
TI9660040149
165 VAC)
N/A
00755302
Tecumseh
82498-1
N/A
N/A
00801241
(378-455 MFD
125 VAC)
N/A
00755109
00215135
Aspera
(145-175 MFD
TI9660040149
165 VAC)
N/A
00755022
GE
3 ARR3-AZJ6
00755023
(270-324 MFD
110 VAC)
00755024
15 MFD
370 VAC
00755302
Tecumseh
82498-1
00801241
(378-455 MFD
125 VAC)
N/A
GE
3AARZ
KCR1765
No P.N.,
(121-146 MFD
250 VAC)
N/A
00755022
GE
3 ARR3-AZJ6
00755023
(270-324 MFD
110 VAC)
00755024
(15 MFD
370 VAC)
00755022
GE
3 ARR3-AZJ6
00755023
(270-324 MFD
110 VAC)
00755024
(15 MFD
370 VAC)
00211173
Mars
19003
No P.N.
(72-88 MFD
250 VAC)
00755024
(15 MFD
370 VAC)
00801236
GE
ARRZKCR1715
00208926
GE
ARR3 ASUZ
00801237
(108-130 MFD
330 VAC)
N/A
00208927
(216-259 MFD
250 VAC)
00208928
(25 MFD
370 VAC)
00207947
00755077
(135-155 MFD
330 VAC)
00755024
(15 MFD
370 VAC)
21
Multiplex Company, Inc.
Complete System Overview
Multiplex Refrigeration Components
Unit
4210R
Refrig
R-22
3610A,
3610R,
450A,
3410A,
3410R
44KX,
44KAX,
44KR,
44X, 44A,
44R
50A, 50W
R-502
Compressor
Multiplex
Manufacturer
00213366
TEC-AJ9484EAJ801ET-361-B4
(1 hp, 1 Phase,
230 VAC)
00208929
TEC-AJ9510KAJ201HT 206-H4
(1 hp, 1 Phase,
230 VAC)
(continued)
Start Relay
00208926
Start
Capacitor
00208927
(216-259 MFD
250 VAC)
Run
Capacitor
00208928
(25 MFD
370 VAC)
00208926
GE
ARR3 ASUZ
00208927
(216-259 MFD
250 VAC)
00215942
(25 MFD
370 VAC)
R-12
00755098
TEC-AH7480AAH160JT-1680A4
(1 hp, 1 Phase,
230 VAC)
00207947
Tecumseh
820AR13C31
00755077
(135-155 MFD
330 VAC)
00755024
(15 MFD
370 VAC)
R-12
00755082
00201073
Tecumseh
82477
00201075
(88-108 MFD
250 VAC)
00201074
(35 MFD
370 VAC)
4KX, 44M,
44MX,
44A, 44R,
44W,
3610MR
37F, 37T,
50H, 50A,
50R, 50W
R-22
00212975
TEC-AH7514AAH3334ET-108-A4
(1.5 hp, 1 Phase,
230 VAC)
MAN-MT-18JA-1
(1.8 hp, 1 Phase,
230 VAC)
00211173
Mars
19003
00212977
(88-108 MFD
250 VAC)
00212976
(15 MFD
440 VAC)
R-12
00202124
N/A
N/A
N/A
37X,
50HX,
50A,
50R, 50W
50MA
R-12
00202842
N/A
N/A
N/A
R-22
00213594
N/A
N/A
N/A
50MAX
R-22
00213595
N/A
N/A
N/A
50MR,
37M, 37A,
37R, 37W
37MX,
37A, 37R,
37W,
50MRX,
37KX
HC900504,
HC900-04
R-22
00212979
N/A
N/A
N/A
R-22
00212980
TEC-AH7514AAH334RT-108-A4
(1.5 hp, 3 Phase,
230 VAC)
TEC-AH4525AAH303TT-128-A4
(2.0 hp, 2 Phase,
380 VAC)
MAN-MT22JC-3
(2.2 hp, 3 Phase,
380 VAC)
MAN-MT22JC-4
(2.2 hp, 3 Phase,
380 VAC)
MAN-MT28JE-3
(2.8 hp, 3 Phase,
380 VAC)
MAN-MT28JE-4
(2.8 hp, 3 Phase,
380 VAC)
N/A
N/A
N/A
R-404A
00215805
00215816
Copeland
040-0001-38
00215814
(72-86 MFD
350 VAC)
00215815
(30 MFD
440 VAC)
38MA04M,
38MA04
R-404A
00215805
00215816
Copeland
040-0001-38
00215814
(72-86 MFD
350 VAC)
00215815
(30 MFD
440 VAC)
HC900X04,
44KAX04
R-404A
00215799
00215424
Copeland
040-0001-19
00201075
(88-105 MFD
250 VAC)
00214943
(25 MFD
440 VAC)
22
CPLND-R564CIECAA-232
(0.75 hp, 1 Phase,
115 VAC)
CPLND-R564CIECAA-232
(0.75 hp, 1 Phase,
115 VAC)
CPLND-R597CIE-CAZ-232
(1 hp, 1 Phase,
230 VAC)
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Multiplex Refrigeration Components
Unit
44MAX04,
44MAX04E
Refrig
R-404A
150A04,
11MA04
R-404A
2803AX04,
75A04
R-404A
2803A04,
HC180-04,
2803A04B,
75A04
300MA04
R-404A
300MAX04,
44MX,
44MA,
44MR,
44MW
38HA39,
38HA,
38HW,
38HAC
38HA,
38HR,
38HW
R-404A
R-404A
Compressor
Multiplex
Manufacturer
Start Relay
00215799
CPLND-R59700215424
CIE-CAZ-232
Copeland
(1 hp, 1 Phase,
040-0001-19
230 VAC)
00215878
TEC-AK9451Z00215943
AK170AT-032-A4
Tecumseh
(0.5 hp, 1 Phase, 820ARR3D10
230 VAC)
00215881
TEC-AK174JT00215967
035-B4
Tecumseh
(0.33 hp, 1 Phase,
82494-1
115 VAC)
00215880
TEC-AK9427200755302
AK174AT-035-B4
Tecumseh
(0.33 hp, 1 Phase,
8294-1
115 VAC)
00215423 CPLND-RS97C1E00215424
CAV-232
Copeland
(1 hp, 1 Phase,
040-0001-19
230 VAC)
00215799
CPLND-RS9700215424
CIE-CAZ-232
Copeland
(1 hp, 1 Phase,
040-0001-19
230 VAC)
R-404A
00755095
R-404A
00755095
38HAX39,
38HAX,
38HW
R-404A
00755080
44KA04,
44MA04,
44MA04E
R-404A
00215423
450MA04,
450MR04,
450MW04,
50MA04
50MAX04
R-404A
00215457
R-404A
00215922
3610R404C
R-404A
00215423
00218011 Revision B (KAK) 31 July, 2000
TEC-AG201AT206-B4
(0.75 hp, 1 Phase,
240 VAC)
TEC-AG201AT206-B4
(0.75 hp, 1 Phase,
240 VAC)
TEC-AJ201JT206-B4
(0.75 hp, 1 Phase,
240 VAC)
CPLND-RS97CIECAV-232
(1 hp, 1 Phase,
230 VAC)
MAN-MTE22-JC3L
(2.2 hp, 3 Phase,
203 VAC)
MAN-MTE22-JC4
(2.2 hp, 3 Phase,
230 VAC)
CPLND-RS97CIECAV-232
(1 hp, 1 Phase,
230 VAC)
(continued)
Start
Capacitor
00201075
(88-105 MFD
250 VAC)
Run
Capacitor
00214943
(25 MFD
440 VAC)
00215941
(72-88 MFD
250 VAC)
00215942
(25 MFD
370 VAC)
00215969
(72-88 MFD
250 VAC)
N/A
00215968
(161-193 MFD
165 VAC)
N/A
00201075
(88-108 MFD
250 VAC)
00214943
(25 MFD
440 VAC)
00201075
(88-108 MFD
250 VAC)
00215798
(30 MFD
370 VAC)
00755022
GE
3ARR3-A2J6
00755023
(270-324 MFD
110 VAC)
00755024
(15 MFD
370 VAC)
00755022
GE
3ARR3-A2J6
00755023
(270-324 MFD
110 VAC)
00755024
(15 MFD
370 VAC)
00801236
GE
3ARR2
KCR1715
00215424
Copeland
040-0001-19
00801237
N/A
(108-130 MFD
330 VAC)
00201075
(88-108 MFD
250 VAC)
00214943
(25 MFD
440 VAC)
N/A
N/A
N/A
N/A
N/A
N/A
00215424
Copeland
040-0001-19
00201075
(88-108 MFD
250 VAC)
00214943
(25 MFD
440 VAC)
23
Multiplex Company, Inc.
Complete System Overview
Normal Operating Pressures of Domestic
Refrigeration Units
Head pressure of domestic refrigeration units
R-12
psig
R-502
psig
R-22
psig
R-134A
psig
R-404A
psig
100-140
200-260
180-240
110-160
210-280
120-170
230-300
210-280
130-180
240-320
75°F Condenser Ambient
10-100% Ice on Evaporator
90°F Condenser Ambient
10-100% Ice on Evaporator
Evaporator pressure of domestic refrigeration units
75°F Evaporator, or 80°F Water
10-100% Ice on Evaporator
1.
R-12
psig
R-502
psig
R-22
psig
R-134A
psig
R-404A
psig
75
140
130
75
150
9-20
30-50
24-44
6-18
33-55
On system with expansion valve (pressure limiting) evaporator gets no higher than:
50 psig on R-12
53 psig on R-502
85 psig on R-22
2.
Water system head pressure should be manually set (adjustable water control valve) to maintain
105°F water condenser out temperature.
3.
Remote Condenser system head pressure will be controlled by Low Ambient Control.
75 psig on R-12, R-134A
150 psig on R-502, R-22, R-404A
24
S03995.pm5
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Normal Operating Pressures of International
Refrigeration Units
Head pressure of international refrigeration units
R-12
bar
R-502
bar
R-22
bar
R-134A
bar
R-404A
bar
24°C Condenser Ambient
10-100% Ice on Evaporator
6.9-9.7
13.8-17.9 12.4-16.5 7.6-11.0 14.5-19.3
32°C Condenser Ambient
10-100% Ice on Evaporator
8.3-11.7 15.9-20.6 14.5-19.3 8.9-12.4 16.5-22.1
Evaporator pressure of international refrigeration units
24°C Evaporator, or 27°C Water
10-100% Ice on Evaporator
1.
R-12
bar
R-502
bar
R-22
bar
R-134A
bar
R-404A
bar
5.2
9.7
9.0
5.2
10.3
0.6-1.4
2.1-3.4
1.7-3.0
0.4-1.2
2.3-3.8
On system with expansion valve (pressure limiting) evaporator gets no higher than
3.4 bars on R-12
3.7 bars on R-502
5.9 bars on R-22
2.
Water system head pressure should be manually set (adjustable water control valve) to maintain
41°C water condenser out temperature.
3.
Remote Condenser system head pressure will be controlled by Low Ambient Control
5.2 bars on R-12, R-134A
10.3 bars on R-502, R-22, R-404A
S04095
00218011 Revision B (KAK) 31 July, 2000
25
Multiplex Company, Inc.
Complete System Overview
Condenser
Function of the condenser
A heat exchanger which transfers heat from the refrigerant to the surrounding air or water.
Failure of the condenser
Air Cooled Condenser
A non operational fan/motor or restricted condenser will reduce the cooling efficiency of the
refrigeration unit.
Water Cooled Condenser
A restricted water supply to the condenser will reduce the efficiency of the refrigeration unit, a
water modulating valve that is stuck open will additionally waste water.
Air Cooled Condenser
Remote Cooled Condenser
(use refrigeration oil)
Water Cooled Condenser
Notes:
26
w
Water cooled condensers should have water exiting condenser 100°F to 105°F regulator
adjusts water flow to refrigerant pressure (higher pressure, more flow)
w
Clean condenser monthly
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Equipment Installation Instructions for
Multiplex Remote Condenser and Pre-charged
Refrigeration Lines
Pre-installation requirements
3.
Multiplex Remote Condenser Requirements
1. Installation and maintenance are to be performed only by qualified personnel who are 4.
familiar with local codes and regulations, and
are experienced with this type of equipment.
2. Equipment of this type is intended for instal- 5.
lation by qualified refrigeration mechanics.
As a condition of the warranty, the check test
and start-up procedure must be performed by
qualified personnel. Because of possible shipping damage, both the Condensing Unit and
Refrigeration Unit(s) must be checked for refrigerant leaks.
The easiest method to create a trap, is to bend
the tubing (smoothly, no kinks) into the trap
form (refer to figure 3).
This trap(s) should be of minimum height of
3" (7.6 cm) and a width of 6" (15.2 cm) to minimize oil accumulation.
It is critical that the Multiplex Remote Condensing line size specifications for the specific model, be maintained. The specifications
are normally 1/2" discharge and 3/8" ID liquid
lines.
Installing the multiplex remote
condenser
The Multiplex Remote Condensing Units have
Check to insure that the Remote Condensing
Unit, the Refrigeration Unit, and the Charged either a 230 Volt, 50/60 Hz, 1 PH Fan Motor or
Refrigerant Lines are marked with the same a 120 Volt, 50/60 Hz, 1 PH Fan Motor that
includes a permanent split capacitor and
refrigerant.
internal inherent overload protection. Motors
Multiplex Pre-charged Refrigeration Lines
are factory wired to an external disconnect
Requirements
switch located on the end of the unit.
1. Both the Discharge and Liquid Remote ConRefrigeration unit has an electrical nipple
densing lines should be kept to a minimum
extending out of the back left side with the
distance for maximum performance. All Mulelectrical wires from the refrigeration contactor
tiplex systems are capacity rated to 100 ft
extending through. The electrician must install
(30.5 m) distance between the Compressor and
an electrical box at this location. Connect the
Condenser. Systems with distances greater
conduit to this box and the Remote Condenser.
than this will experience some efficiency loss
The electrical installation should be in
in proportion to the distance. This should be
accordance with local codes, National Electrical
a minor capacity loss, less than one drink per
Code and regulations. Proper fuse protections
minute up to 300 ft (90 m).
should be provided for the Fan Motor.
2. Any vertical rise greater than 25 ft (7.62 m)
must have a manufactured or installed trap 1. Determine a position for installation that will
allow access for maintenance and is free from
(bend), in at least the Discharge Remote Conobstruction.
denser Refrigeration Line. A trap is necessary
for every additional 25 ft (7.62 m) vertical rise. 2. Install the four (4) legs to the sides of the conWhen excessive vertical rise exists, this trap
denser using the mounting bolts provided.
allows oil to reach the Condenser and return
3. Secure two (2) treated 4" x 4" to the roof or
to the Compressor.
mounting surface. Mount to the Remote Condenser (refer to figure 1).
Remote Condenser
4. Install a 3" Pitch Pot in the roof (refer to figure 2). Seal for weather protection.
3.
5.
Locate the Pre-charged Refrigeration Lines
shipped with the system. These lines should
be a correct length for the building design.
Neatly avoiding any kinks, route these lines
from the Remote Condenser to the Refrigeration Unit.
Caution: Excess refrigeration line should be coiled
and placed in a horizontal (flat) position. When
stored in a vertical position, the loops act as an
oil trap and will effectively reduce the performance of our equipment as well as increase the
risk of compressor failure.
Wolmanized 4 x 4
(not included)
Figure 1
EI216524
00218011 Revision B (KAK) 31 July, 2000
27
Multiplex Company, Inc.
Complete System Overview
Equipment Installation Instructions for Multiplex
Remote Condenser and Pre-charged Refrigeration
Lines (continued)
Connecting the pre-charged
refrigeration lines
How to re-charge the line sets
Note: Before connecting the Pre-charged Refrigeration Lines, the Refrigeration Unit must be properly located, leveled, and the water bath filled 1"
(2.5 cm) below the drain pipe.
1. Attach low side Gauge Set to service port on
each line set to verify positive pressure within
the line set. If there is positive pressure, assume
line set is fully charged.
Note: If for any reason the lines are damaged and/
or leaking or lines are no longer charged, refer to
”How To Re-charge the Line Sets”.
2. Always make the connections at the Condenser
first, using the end of the Pre-charged Lines
with the valve ports.
3. Connect the Condenser side one time quick
connects (discharge and liquid) up to Condenser.
Refer to the section titled “Aeroquip
Connection” in these instructions.
4. Check that the sight glass clears during pull
down to verify the Line Set charge.
5. If the sight glass does not clear, attach the
gauges. Adjust the charge if necessary.
Remote
Condenser
Note: This procedure to be used only with damaged or evacuated Line Sets or with unknown refrigerant type.
1. Repair any damages to the Line Sets before
proceeding.
2. With the Remote Condenser lines properly
hooked and sealed to the Condenser, evacuate
to 30 in mercury (76.2 cm mercury) for 1 hour,
using one or both Schrader ports on the service
Line Set.
3. Charge the Condenser and Line Set accordingly.
Add 0.72 oz/ft (0.067 kg/m) of Remote Line Set
(one way run distance) plus 6 oz (170 g) of
refrigerant for any size Condenser.
Example:
50 ft of Line Set
50 x 0.72 = 36 oz
36 oz + 6.0 oz = 42.0 oz (Total)
4. Connect Line Sets to the proper discharge and
liquid mating connectors on the Refrigeration
Unit using one (1) time quick connects. Refer
to the section titled “Aeroquip Connection”
in these instructions.
Service Ports
Electrical Supply to the
Remote Condenser
3" Pitch Pot
Coiled Excess
Refrigeration Line
Handy Box
Pre-charged
Refrigerant Lines
Roof
Figure 2
28
EI216524
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Equipment Installation Instructions for Multiplex
Remote Condenser and Pre-charged Refrigeration
Lines (continued)
5. Be sure to observe proper refrigeration
technique when running the Line Set.
Proper Refrigeration Technique for Running
the Line Set
a. The discharge line should loop down at
the Compressor end to trap liquid from
returning (refer to figure 3).
b.
c.
The Discharge Line should loop above discharge connector at the Condenser to
resist liquid returning to the Compressor.
Any excess line should be coiled horizontally with line from the Compressor at top
and line to the Condenser at bottom to
keep from trapping oil and returning liquid.
Discharge line should be trapped (P Trap)
every 20-25 ft (6.1-7.6 m) of vertical rise,
to allow oil to “stair-step” up to the Condenser and eventually return to the Compressor.
Aeroquip Connection
1. Lubricate male half diaphragm and synthetic
rubber seal with refrigerant oil.
2. Thread male coupling to its proper female half
by hand to insure proper mating of threads.
3. Use proper wrenches (on coupling body hex and
its union nut) and tighten union nut until
coupling bodies “bottom”.
Note: You must use body wrench to keep body
from turning while tightening nut with the second wrench. If body turns excessively, piercing seal
will be damaged.
4. Use proper wrenches to tighten an additional
1
/4 turn (90°). This final 1/4 turn is necessary to
insure the formation of a leak proof joint.
Alternately use a torque wrench to tighten 1/2"
Coupling to 40 ft lbs and 3/8" fitting to 11 ft lbs.
Note: When the connections are made, the seal in
the couplings are broken and if removed for any
reason, the refrigerant charge will be depleted.
Caution: Relays and terminal block are energized
from each remote unit. Turn “off” switches on
each unit before, opening quick disconnect switch
on condensing unit. On the completion of the wiring of the Remote Condenser make sure the electrician placed the switch lever in the “on” position. This switch must be “on” before turning
“on” the refrigeration toggle switch on the unit.
Also, the water bath must be filled with water.
Discharge Line Condenser
Trap
To the Condenser
Coil any extra Condensing Lines
in a horizontal plane with
output below input.
3" (7.6 cm) x 6" (15.2 cm)
Maximum Trap Area
Discharge Line Trap every 25
vertical ft. (7.62 m)
Compressor
3 ft (minimum) of Discharge Line
Trap at the Compressor
Figure 3
EI216524
00218011 Revision B (KAK) 31 July, 2000
29
Multiplex Company, Inc.
Complete System Overview
Expansion Valve or Cap Tube
Function of the expansion valve or cap tube
The expansion valve or cap tube, controls the refrigerant flow. Both controls allow the reduction
of liquid refrigerant from high pressure to its evaporating pressure. The expansion valve is better
suited for varying temperature conditions.
Failure of the expansion valve or cap tube
A defective expansion valve or cap tube will not properly regulate the flow of refrigerant.
Notes:
w
30
O.E.M. part adjusted for our super heat
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Evaporator Coil
Function of the evaporator coil
Coil in the water bath in which the refrigerant vaporizes and absorbs heat creating an ice bank.
Failure of the evaporator coil
This copper tube assembly is extremely reliable, however, concern should be given when
cleaning around the evaporator to insure no sharp instruments, chemicals/cleaners are used that
might damage the evaporator.
Notes:
00218011 Revision B (KAK) 31 July, 2000
31
Multiplex Company, Inc.
Complete System Overview
Water Bath
Function of the water bath
Water and ice reservoir, housing the carbonator tank and cooling coils. Provides an efficient
method of removing heat.
Failure of the water bath
Not maintained, dirty water in the bath may cause poor ice bank formation, poor heat exchange
and electrolysis.
Notes:
w
32
Restrictions in the flow of water, in the water bath, from the agitator motor could cause
an uneven ice bank (or blockage in the flow of water).
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Agitator Motor
Function of the agitator motor
Agitates the water within the bath to distribute heat load and keep the ice bank uniform.
Failure of the agitator motor
An inoperative agitator will warm drinks and an irregular ice bank formation.
Notes:
w
Make sure agitator motor has a heat sink (it will extend the life of your motor)
w
Make sure propeller is secured to the agitator motor
w
An inoperative agitator motor will cause foaming at peak times
00218011 Revision B (KAK) 31 July, 2000
33
Multiplex Company, Inc.
Complete System Overview
Ice Bank Control
Function of the ice bank control
Pressure switch that turns on and off the refrigeration compressor when the control bulb
indicates the need.
Failure of the ice bank control
Defective ice bank control stuck in the open position will not allow the refrigeration compressor
to operate.
Defective ice bank control stuck in the closed position will not allow the refrigeration compressor to
cut-off.
Removing the cover mounting plate will
alter the switch calibration.
Notes:
34
w
Check circuit breaker
w
Check head pressure control (on remote condenser units)
w
If the bulb is engulfed in ice, the compressor should not be running
w
Check contactor coil for welded points
w
Do not change bulb location
w
If you have two controls the primary control bulb is positioned closer and lower on the
evaporator coil
w
A warning light will indicate when the secondary control has taken over
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Head Pressure Control
(used on Remote Condensing units only)
Function of the head pressure control
As the evaporator discharge pressure drops when the outside temperature drops, gas will by-pass
the roof condenser and be metered into the receiver maintaining an adequate head pressure.
Failure of the head pressure control
A valve incapable of by-pass will effect the refrigeration unit when the outside temperature
drops below 60°F with little or no ice production.
A valve stuck in by-pass will cause high head pressure and effect the ice production capabilities
of the unit.
R-12
R-502
Condenser
Notes:
Water Bath
Compressor
Receiver
00218011 Revision B (KAK) 31 July, 2000
35
Multiplex Company, Inc.
Complete System Overview
Refrigeration Unit, Line, and Condenser Cross
Reference Chart
Condenser unit
Part Number
Size
Refrigerant
Charge
Voltage
Frequency
00905222
0.75 ton
R-12
23 oz
120 VAC
60 Hz
00905224
0.75 ton
R-12
23 oz
220 VAC
50 Hz
00212551
1.5 ton
R-12
20 oz
208/230 VAC
50/60 Hz
00213365
1.5 ton
R-22
12 oz
208/230 VAC
50/60 Hz
00214150
1.5 ton
R-502
6 oz
208/230 VAC
50/60 Hz
00904685
2.0 ton
R-12
6 oz
203/230 VAC
50/60 Hz
00904812
2.0 ton
R-22
6 oz
208/230 VAC
50/60 Hz
00904811
2.0 ton
R-502
6 oz
208/230 VAC
50/60 Hz
00215500
1.5 ton
R-404A
6 oz
208/230 VAC
50/60 Hz
00904813
2.0 ton
R-134A
6 oz
208/230 VAC
00904814
2.0 ton
R-404A
12 oz
208/230 VAC
Refrigeration line sets
36
Part Number
Refrigerant
Charge (ounces)
Charge (pounds)
00204017
R-12
0.72 oz/ft
0.045 lb/ft
00213062
R-22
0.72 oz/ft
0.045 lb/ft
00209602
R-502
0.72 oz/ft
0.045 lb/ft
00215425
R-404A
0.72 oz/ft
0.045 lb/ft
S90232
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Refrigeration Unit, Line, and Condenser Cross
Reference Chart (continued)
Refrigeration units
Part Number
Model
Refrigerant
Charge
00903731
37KR
R-12
172 oz
00903741
37KRX
R-12
172 oz
00903758
371RX
R-12
172 oz
00903771
37TR
R-12
172 oz
00903781
37TRX
R-12
172 oz
00903791
00903794
37KR-22
37KRX-22
R-22
R-22
151 oz
151 oz
00903797
37KRX-22 V
R-22
151 oz
00904711
371R
R-12
172 oz
00904726
37MR-P
R-22
151 oz
00904736
37MRX-P
R-22
151 oz
00903804
38HR
R-12
98 oz
00903940
39SC
R-12
98 oz
00904401
44R
R-12
128 oz
00904403
44RX
R-12
98 oz
00904420
44KR
R-12
128 oz
00904423
44KRX
R-12
98 oz
00904431
00904434
44MR-G
44MRX-G
R-22
R-22
116 oz
116 oz
00904441
44KR-22
R-22
116 oz
00904444
44KRX-22
R-22
116 oz
00904464
44KRX-22 V
R-22
116 oz
00904471
44MRXG
R-134A
116 oz
00904473
44KRX
R-134A
116 oz
00904481
44MR04
R-404A
125 oz
00904491
44KR04
R-404A
125 oz
00905013
50HR
R-12
150 oz
00905016
50HRX
R-12
150 oz
00905031
00905034
50MR
50MRX
R-22
R-22
140 oz
140 oz
00905041
50MR04
R-404A
144 oz
00905044
50MRX04
R-404A
145 oz
00905046
50MR04
R-404A
144 oz
00934101
R3410R
R-502
240 oz
00936111
D3610R
R-502
240 oz
00936113
D3610R
R-404A
240 oz
00936115
3610R04C
R-404A
240 oz
00936116
3610R404C
R-404A
240 oz
00942100
D4210HR
R-22
192 oz
00948102
D4810R
R-404A
240 oz
To maintain the high quality of your Multiplex equipment we recommend
you to contact your Multiplex Regional Technical Manager for the
Authorized Multiplex Service Agent nearest you at (636) 256-9797.
S90232
00218011 Revision B (KAK) 31 July, 2000
37
Multiplex Company, Inc.
Complete System Overview
High Pressure Cut-out (limiting switch)
Function of the high pressure cut-out
Pressure operated control which opens electrical circuit if high-side pressure becomes too high.
Failure of the high pressure cut-out
Defective high pressure cutout stuck in the open position will not allow the refrigeration
compressor to operate.
Defective high pressure cutout stuck in the closed position will not protect the refrigeration
system from a high pressure situation.
Notes:
CO 250
CI 200
R-12
CO 400
CI 350
R-502
38
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Dispensing Valves
Function of the dispensing valves
To dispense cold syrup and carbonated water, consistently at a proper ratio and speed.
Failure of the dispensing valves
Inferior finished product, poor tasting drinks.
Dole FFV with Syrup Separator
Dole SEV
SF-1
Notes:
w
Check for operation of solenoids, swollen seats, restricted valve ports and power to the
dispensing valve
w
Flow Rate:
5 oz/4 sec (standard flow)
10 oz/4 sec (fast flow)
w
Set the flow rate, then adjust the ratio
00218011 Revision B (KAK) 31 July, 2000
39
Multiplex Company, Inc.
Complete System Overview
Flow Controls
Function of the flow controls
To regulate the flow of syrup or water and compensate for the drop or rise in pressures that
occur when more than one dispensing valve is operated from the same supply.
Failure of the flow controls
Defective or dirty flow controls will not retain a proper and constant Brix.
Notes:
40
w
If flow control sticks, replace
w
You must not interchange spools and sleeves from different sets
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Keyboards and Timers
Function of the keyboards and timers
Activates the solenoid’s on the dispensing valve for a specific adjustable amount of time.
Generally allowing for three different time ranges.
Failure of the keyboards and timers
Defective keyboards will cause the continual activation of the timer or no activation at all.
Defective timers will cause continual dispensing of the product, no dispensing of product or will
not adjust to the desired portion size.
Notes:
00218011 Revision B (KAK) 31 July, 2000
41
Multiplex Company, Inc.
Complete System Overview
Multiplex Programmable
Portion Control Timers
What’s New at
Multiplex
We have received some requests to publish descriptions explaining
the differences between the various models of Multiplex
programmable portion control timers. The following is not intended
to be a step by step procedure, but is only a general overview of
the unique features of each timer.
You may now order new
push-button replacement labels
for the 4-Size timers that are
used on the Model CPss150MD200 and Model 116 tower.
The Model 66 was the first programmable portion control timer.
It requires a 9 volt battery to retain its memory during power
outages. Its 3-Size timer utilizes a separate rocker switch for
calibration. To set the drink sizes:
w Turn the calibration rocker switch to the “on” position.
w Push the respective size pad for each keypad position at each
valve.
w Repeat this process for each valve.
w Once complete, turn off the rocker switch to store the
programmed sizes into memory.
The Model 64 is similar to the Model 66, except that the 9 volt
battery is no longer required, since memory is stored on a memory
chip. Its 4-Size timer still requires the rocker switch for calibration.
There are major improvements with the Model 64A Revision B.
The 4-Size timer uses a calibration button, integrated into the
keypad, rather than a rocker switch. A 4 second pour feature permits
easy flow rate adjustments and volume settings for all valves
simultaneously from valve number 1, in an emergency. To adjust
the flow rate:
To replace, peal back worn
push-button label carefully with
a knife edge as shown above.
Peel the covering from the back
of label. Attach new label and
apply light pressure to adhere
the new label to the timer.
Please see below for correct
label to order for your timers.
w Push the CAL pad three (3) times in less than three (3) seconds
to enter calibrate mode. Calibration light will go on.
w Push the STOP/FILL pad once on any valve to achieve a 4
second pour for that valve.
w Once the valve water flow adjustments are complete, push the
CAL pad once to exit calibrate mode. Calibration light will go
out.
P.N. 00214953
To be used with timer cover
(P.N. 0021693).
w To adjust the Brix (water to syrup ration) for each valve, push
the CAL pad three (3) times again.
w Push the respective size for each valve until you achieve the
desired drink level in your cup.
w Exiting calibrate mode (pushing CAL pad once) will lock the
programmed sizes to memory.
The Model 64A Revision C is similar to the Model 64A Revision B
except that the volume settings can be completely accomplished
from any valve. To adjust all valves to the same times:
P.N. 00214954
To be used with timer cover
with soda button
(P.N. 00216094).
w Push CAL pad three (3) times and push the STOP/FILL pad on
any valve (except valve number 1) two (2) times.
w Program each size for that valve.
w Exit calibration mode by pushing CAL pad once. This will lock
the programmed sizes for all valves into memory.
Note: It is extremely important that all valves be adjusted to
exactly the same water flow rate. If any valve is adjusted to a
different flow rate (no matter how slight), it will have to be readjusted separately.
42
P.N. 00214955
To be used with timer cover
with water button
(P.N. 00210695).
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Instructions for Proper Dispensing Valve
Calibration (Flow, Ratio, and Volume)
using the 4-Size Portion Control
Flow (to set the water flow rate only)
Ratio (water to syrup mixture)
Check that the Primary CO2 tank high
pressure regulator or bulk CO2 regulator is
adjusted properly. The Medium pressure
regulator for sugar-based syrup must be adjusted
to 60 psi (4 bar). The Low pressure regulator for
sugar-free syrup must be adjusted to 14-16 psi
(0.9-1.1 bar).
1.
Remove valve nozzle by turning the nozzle and
pulling down.
2.
Place syrup separator on valve to be adjusted.
Actuate the valve manually (pad, lever) until
both syrup and water flow out of the syrup/
water separator.
3.
Position the proper ratio cup under the syrup
separator. Manually actuate the valve pad or
lever valve (pad, lever). Dispense until at least
3
/4 of the ratio cup is filled. Both products
should fill to the same level.
4.
To adjust the syrup flow (if levels are not
equal), turn the syrup flow control adjusting
screw clockwise to increase and counterclockwise to decrease the flow of syrup.
1.
Turn “off” the syrup at the dispensing valve
by turning the syrup shut-off (located on the
valve mounting block). If there is no syrup
shut-off, use a syrup separator.
2.
Check the water shut-off (if applicable). It
should be in the full open position.
Note: The syrup and water shut-off (if
equipped) are not to be used as an alternate for
flow controls. They are to be used only for shutting
on or off the syrup and/or the water supply.
3.
4.
5.
Place a volume cup with 10 oz. (295.7 mL)
measurement line, under valve to be adjusted.
If using syrup separator, place volume cup un- 6.
der water side of separator only.
Use 4-Size portion control timer to obtain an
accurate 4 second pour as follows:
a.
Press CAL pad three (3) times in less than
3 seconds to enter calibrate mode. Calibrate lamp will light. (Omit this step if
already in calibrate mode).
b.
Press STOP-FILL pad of valve to adjusted
once to cause 4 second pour into volume
cup.
Note: Fast-fill valves will dispense 10 oz in 4 seconds and standard-fill valves will dispense 5 oz in
4 seconds. Diet and other products with high foaming tendencies would be adjusted to 7.6 oz and
3.8 oz respectively.
5.
6.
7.
8.
9.
Note: Do not adjust the water flow during this
procedure.
To adjust the water flow rate (if necessary),
turn the adjusting screw clockwise to increase
and counterclockwise to decrease the flow of
water.
After syrup is adjusted, remove the syrup separator and replace the valve nozzle.
Repeat this procedure (steps 1 through 5
above) for the remaining valves.
Volume (setting drink portion sizes)
1.
To enter portion control calibrate mode, press
CAL pad three (3) times in less than 3 seconds. Calibrate lamp will light.
2.
Use volume cup with finished drink marking
lines, or use correct size sample cup with desired volume of ice.
3.
Press and hold respective SIZE pad until product gets close to proper finished drink mark,
or until close to top of sample cup.
4. Release SIZE pad before reaching final mark
or before foam exceeds final mark. Press SIZE
pad again momentarily, as many times as is
necessary (letting foam settle), to get to the
correct finished drink mark.
5.
Repeat steps 2 through 4 above for all sizes
and all stations (products) needing calibration.
Be sure to use the correct volume cup finished drink marking line, or correct sample
cup size and ice amount, for each size pad.
Repeat 4 second dispense (STOP-FILL pad) and
water flow adjustment, until volume is correct.
Note: If you fill above the final mark or need to
Open syrup shut-off or remove syrup separa- "start over" for any reason, you must exit the calitor (if applicable).
brate mode and then re-enter the calibrate mode
Repeat this procedure (steps 1 through 7 to resume.
above) for each valve.
6. Exit calibrate mode by pressing CAL pad once.
Calibrate light will go out. All changes will be
Press CAL button once to exit calibrate mode.
permanently saved.
Calibrate lamp will go “off”.
00218011 Revision B (KAK) 31 July, 2000
43
Multiplex Company, Inc.
Complete System Overview
Instructions for Proper Dispensing Valve
Calibration (Flow, Ratio, and Volume)
using the 4-Size Portion Control (continued)
Special feature
For use by serviceman only, or to temporarily
program all stations (products) in an emergency.
1.
2.
44
When you first enter calibration mode (by
pressing CAL pad three [3] times in less than
3 seconds), any station (product) STOP-FILL
pad can be pressed two (2) times in less than
2 seconds. The calibrate lamp will flash continuously.
3.
Immediately exit calibration mode by pressing the CAL pad once, to save changes. Calibration light will go out.
Note: All valve flow rates and ratios must be
adjusted exactly the same before attempting this
"one valve adjusts all" routine.
4.
Individual stations/sizes can be re-calibrated
when necessary.
The size pads of this station can now be calibrated as in steps 2 through 4 of Volume instructions. The times will replicate across all
stations (products). All stations and all sizes
will now have exactly the same pour times.
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Test Procedures
Model MPC64A timer/selection
pad
MPC 64A Timers can be placed in the test
mode as follows:
1.
Flip power switch “off”.
2.
While depressing CAL button on selection pad,
flip power switch back on.
3.
Release CAL button when red LED comes on.
Faucets will energize for 2 seconds, each in
sequence, starting with faucet #1 (far left).
Timer is now in the Test Mode. To stop faucets,
use one of two procedures:
a.
b.
Turn power switch off. This will save the
programmed times. Use this procedure
for testing or sanitizing.
Push CAL button. All programmed times
for all stations will go to factory default
times. Default times are:
Size #1: 1 - 1.5 seconds
Size #2: 4 - 4.5 seconds
Size #3: 6 - 6.5 seconds
Size #4: 8 - 8.5 seconds
Pin identification
J-7 = Valve 1
J-8 = Valve 2
J-9 = Valve 3
J-10 = Valve 4
J-11 = Valve 5
J-12 = Valve 6
Check for 24 Volts at each solenoid cable
connector, J-7 through J-12, with cables
removed.
With cables on, check for 24 VAC across
solenoids at dispensing valve while dispensing
respective valve.
J-15 Power to Valves 1, 2, 3.
J-20 Power to Valves 4, 5, 6 and
microprocessor.
Loss of power at J-20 results on loss of power
to microprocessor; no valves will work.
J-16 Station and Sizes:
#1
Stop/Fill
#2
Large
#3
Medium
#4
Small
#5
Valve 6 (or nothing, on a 5 valve
tower)
#6
Valve 5
#7
Valve 4
#8
Valve 3
#9
Valve 2
#10
Valve 1
#11
Blank
#12
Extra Large
Use a jumper wire to make these connections
to determine if timer is functioning properly.
1.
Jump pin 1 to pin 5, 6, 7, 8, 9, 10. Appropriate valve should energize as long as pins are
jumped.
2.
Jump pin 12 to pin 5, 6, 7, 8, 9, 10. Valves
should pour EXTRA LARGE.
3.
Jump pin 2 to pin 5, 6, 7, 8, 9, 10. Valves
should pour LARGE.
4.
Jump pin 3 to pin 5, 6, 7, 8, 9, 10. Valves
should pour MEDIUM.
5.
Jump pin 4 to pin 5, 6, 7, 8, 9, 10. Valves
should pour SMALL.
J-17 calibration button and light
If microprocessor does not go into calibration,
remove connector at J-17. With jumper wire,
jump 1st and 2nd pins on left 3 times in less than
3 seconds. Replace connector. Calibration light
should be on (microprocessor will be in the
calibration mode). White & white = calibration
button. Red & black = calibration light. If CAL
light does not come on, LED is burned out replace keyboard.
Loss of power at J-15 results on loss of power
to valves 1, 2, 3.
00218011 Revision B (KAK) 31 July, 2000
45
Multiplex Company, Inc.
Complete System Overview
Dual Transformers
Note: Dual Transformers must be wired in phase.*
To determine whether transformers are wired in phase: With power on, take voltage reading at
HOT wire of each transformer. Reading should be 0 VOLTS*. If you read voltage, transformers are
out of phase. The positions of the wires on one transformer must be switched.
* Black to White = 24 VAC +/- 10%
Black to Black = 0 VAC
46
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Service Bulletin
MOV’s field testing
Metal Oxide Varistors installed on the water and carbonated water buttons, on McDonald’s style
dispensing towers, are designed to completely absorb electrical spikes keeping them out of the
microprocessor circuit eliminating complaints of:
w Not holding calibration
w Valves flowing by themselves
w Two valves coming on at the same time, etc.
Multiplex has designed a field test procedure that will expose a faulty MOV. This procedure will
also work on the older style capacitors.
The field test procedure:
Depress separately both the water and soda water button rapidly 5-6 times. While doing this,
watch all other valves. If you notice any dripping or any other valve trying to energize, the MOV’s
need to be replaced.
Note: Factory installed MOV’s have heat shrink tubes on each terminal leg. Always check to make
sure that heat shrink has not slipped down and is insulating the MOV leg inside the terminal connector.
Notes:
00218011 Revision B (KAK) 31 July, 2000
47
Multiplex Company, Inc.
Complete System Overview
New Model MPC84A Portion Control Board
A new portion control board, the Model MPC84A, has been developed to improve the
performance and maintain the functions and feature of the previous Model MPC64A. In addition, this
Porction Control board has passed the very demanding EMC (radio frequency emissions and
interference) testing for European CE approval, at the UL labs. The Model MPC64A has been phased
out as of June 1996. Only the Model MPC84A will be used on new production and for service.
The new bard is the same size, has the same mounting locations, and uses the same connectors
as the previous board. This article is to explain the features (which can be used to your advantage)
and minor differences.
The major difference is the same size board. The Model MPC84A can control up to eight stations
(dispensing valves) with up to four sizes per station. The Model MPC64A could control up to six
stations.
The illustration in Figure 1 depicts the connectors on the Model MPC64A. The illustration in
Figure 2 depicts the connectors on the Model MPC84A.
The power connectors J15 and J20 (24 VAC) are the same. The keyboard connectors, J16 for
touchpad and J17 for calibration touchpad, are the same.
The Model MPC84A adds one more two pin keyboard connector, the J1. For an eight station tower,
this connector, along with a separate two wire cable to the proper keyboard, provides the two extra
stations.
The five pin valve connectors, the J7 to J12 on the Model MPC64A, are changed to a two pin
connectors, the J7 to the J14 on the MPC84A. These valve connectors are not polarized (does not
matter how you connect the two pins) except when the valve has a “water” or a “soda” harness.
The calibrating functions of the new portion control board are the same as the old board.
Figure 1
Figure 2
48
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Instructions for Multiplex Model MPC84AT
Portion Control Board with Top-off
Run Mode
Top-off program mode
Size Buttons
Press any size button (1, 2, 3, etc.) on any
station to dispense product for that station for the
pre-programmed time for that respective size. For
example, at Station 1 press the Small size button.
Station 1 should dispense the correct amount of
product for a Small size.
Entering the Top-off Program Mode
To enter the Top-off Program Mode, press the
CAL button five (5) times in less than 3 seconds.
The CAL light will flash each time it is pressed and
flash five (5) times after 3 seconds. The light will
remain “on”.
STOP-FILL Buttons
If no dispense is in progress, press any STOPFILL button to manually dispense from the station.
Press the STOP-FILL button to manually stop and
cancel any in-progress dispensing at that station.
Program Mode
Enabling and/or Disabling the individual
station Top-off
Enabling the individual station Top-off allows
every size dispensed on this station to pour all the
volume programmed in two (2) pours with a 3
second delay between pours. Disabling the
individual station Top-off allows every size
dispensed on this station to pour all the volume
programmed.
Entering the Program Mode
1.
To enter the Program Mode, press the CAL
button three (3) times in less than 3 seconds. The
CAL light will flash each time it is pressed. After 3 2.
seconds, the light will remain “on” constantly (if
pressed the proper number of times in the proper
time frame).
Volume Sizing
Note: Use a Calibration cup (or an appropriate size
cup with the right amount of ice).
1.
Press the respective size button for that cup
(small, medium, large, etc.) at that station.
2.
Fill the cup with product to the correct level.
Note: This same size button may be started and
stopped as many times as desired to acquire the
correct level while letting the drink settle. All
times for same station and size are additive in the
program session.
3.
Repeat volume sizing procedure for all sizes
and stations.
Flow Rate Calibration
Press any STOP-FILL button one (1) time. That
respective valve will flow for exactly 4 seconds
allowing for checking or adjusting the valve flow
rate.
Press the STOP-FILL button on the station desired to change the top-off mode.
The CAL light will immediately flash five (5)
times to indicate the top-off mode has been
toggled. If the respective station was disabled
for top-off, then it will toggle to enable for
top-off. If the respective station was enabled
for top-off, then it will toggle to disable for
top-off.
Exiting the Top-off Program Mode
To exit the Top-off Program Mode, press the
CAL button one (1) time turning “off” the CAL
light. All station top-off mode changes made
during this session will permanently be stored.
Test mode
1.
With the power “off”, press the CAL button
and turn power “on” simultaneously.
2.
Release the CAL button. The Portion Control
board will sequence each station for 4 seconds starting with the leftmost.
3.
Check that each LED on the Portion Control
board comes “on” sequentially and all valve
solenoids fire.
Note: If the LED light does not come “on” for any
station(s), the Portion Control board is bad. If the
LED light comes “on” but the valve does not fire,
check wiring and valve solenoids.
One Station Sets All
After entering the Calibrate Mode, press any Sanitation mode
STOP-FILL button two (2) times in less than 1
second. The CAL light will flash constantly. Now 1. With the power “off”, press the CAL button
and turn the power “on” simultaneously.
all volumes on that station programmed in this
session will copy to all other stations.
2. Release the CAL button. Each station will come
“on” for 4 seconds sequentially. This allows
Exiting the Program Mode
automatic pouring of the sanitation fluid from
To exit the Program Mode, press the CAL button
each station constantly until each line drains.
one (1) time turning “off” the CAL light. All volume
changes made during this session will permanently Note: If the drain can support more than one (1)
valve pouring at a time, press the STOP-FILL butbe stored.
ton on the station number for the number of valves
flowing simultaneously.
Example: At station number 3, press the STOPFILL button. Three (3) valves will flow simultaneously.
EI216162
00218011 Revision B (KAK) 31 July, 2000
49
Multiplex Company, Inc.
Complete System Overview
McDonald’s Portion Control Timer
A common problem associated with the McDonald’s style portion control timer is when one size
becomes non-adjustable. This may not be more than the trimming potentiometers being adjusted
out of the usable range. To bring them back into range, all that must be done is to turn the screw
counterclockwise 20 complete turns, and then clockwise:
Number of Complete Turns
Fast Fill
Standard Fill
Medium
3
5
Large
4
7
Super-Size
5
9
This procedure should eliminate the replacement of many “good” portion control timers.
Volume Adjusting Screws
24 VAC
Power
Manual
Fill Switch
“Large”
Selection
Switch
“Medium”
Selection Switch
“Regular”
Selection
Switch
If you have any questions or comments,
please contact Multiplex Technical Service at (314) 256-7777.
50
00218011 Revision B (KAK) 31 July, 2000
Multiplex Company, Inc.
Component Parts Workbook
Sitco 4-Selection Portion Control Timers
Adjusting portion control for
size of drinks dispensed
Small
Medium
Large
X-Large
1.
Simultaneously press and hold “S” (SMALL)
and “X” (EXTRA LARGE) push button switches
on Coded Autoset Portion Control Module until LED light in center of module starts blinking, then release switches. Blinking LED indicates set mode is active.
2.
Put desired amount of ice in cup, place cup
under valve and push selected size button
(small, medium, large, or extra large). Hold
Soda/Water
Stop/Flow
button in until cup fills to desired portion then
release button. Wait for foam to settle then
actuate button again to top off. Repeat the Cancel/pour
above procedure for remaining sizes.
1. Push and release to cancel or stop valve dispensing.
After programming all drink sizes, press and
release “CANCEL/POUR” switch to return the 2. Push and hold for continuous pour.
Coded Autoset Portion Control to the operaThe portion control has a full memory retention
tional mode. Blinking LED light will go out.
when programming and in case of power failure.
Note: If top-off is not desired or required,
the following steps must be followed:
3.
a.
Follow step 1 above.
b.
Put desired amount of ice in cup, place
cup under valve and push selected size
button (small, medium, large, or extra
large). Hold button in until cup fills to desired portion then release button.
Note: After actuating the last selected size button, momentarily actuate one of the other size
buttons. This will signal the microprocessor that
all selected sizes are completed. Failure to do
this will signal an incomplete response back to
the microprocessor and the last selected size will
revert back to its previous program.
If, at a future date, it is decided to change
portion size of the drinks or omit or add the top
off feature, the individual sizes can be adjusted
by the above procedure. It is not necessary to
reprogram every size.
Installation
1.
Remove the front cover from the valve.
2.
Remove the rear cover by loosening the screw
at the front top portion of the rear cover and
then lift up on the rear cover.
3.
Disconnect the valve 24 volt AC electrical connection (white plug) from the dispensing valve
connector.
4.
Remove the entire valve wiring harness from
the dispensing valve (valve lever and micro
switch can be removed, if desired).
5.
Attach the portion control wiring as shown in
Figures 1 or 2.
6.
Connect the 24 VAC connector from the portion control to the connector on the dispenser.
7.
Place the rear cover on the valve and tighten
the screw at the front of the rear cover.
8.
Place the coded auto set portion control front
cover on the front of the rear cover. Snap the
front cover into the rear cover at the bottom
of the front cover.
Part No.
Description
00210693
4-Selection Portion Control for Wilshire Valves
00210694
4-Selection Portion Control with Soda for Wilshire Valves
00210695
4-Selection Portion Control with Water for Wilshire Valves
00210697
4-Selection Portion Control for Lancer Valves
00218011 Revision B (KAK) 31 July, 2000
51
250 Old Ballwin Road w St. Louis, Missouri 63021-4800
Tel: 636.256.7777 w Fax: 636.527.4313
info@multiplex-beverage.com w www.multiplex-beverage.com
In accordance with our policy of continuous product development and improvement,
this information is subject to change at any time without notice.
00218011 Revision B (KAK) 31 July, 2000
Fountain
Troubleshooting
Guide
Fountain Beverage
Dispensing Equipment
250 Old Ballwin Road w St. Louis, Missouri 63021-4800
Tel: 636.256.7777 w Fax: 636.527.4313
info@multiplex-beverage.com w www.multiplex-beverage.com
In accordance with our policy of continuous product development and improvement,
this information is subject to change at any time without notice.
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Table of Contents
Caution ................................................................................................................... 1
Foreword ................................................................................................................. 2
Problem Cross Reference Guide ..................................................................................... 3
Troubleshooting Guide ................................................................................................ 4
Section 1: CO2 Gas System ......................................................................................... 4
Loss of CO2 ........................................................................................................ 4
Flat drinks (lack of carbonation in carbonated water) .................................................... 5
Section 2: Carbonated Water System ............................................................................ 7
Flat drinks ........................................................................................................ 7
No carbonated water at any of the dispensing valves ..................................................... 9
Carbonator pump and motor will not cycle “off” (possibly noisy pump) ............................. 11
Section 3: Circulating System ................................................................................... 14
Warm drinks .................................................................................................... 14
Section 4: Compressed Air System ............................................................................. 16
No syrup ........................................................................................................ 16
Section 5: Dispensing Valve and Tower ........................................................................ 19
No syrup or insufficient syrup in finished drink .......................................................... 19
No carbonated water or insufficient carbonated water in finished drink ............................ 20
No water or insufficient water in finished drinks ........................................................ 21
Section 6: Electrical System .................................................................................... 24
Section 7: Refrigeration System ................................................................................ 25
Warm drinks (carbonated water temperature over 40°F [5°C]) ....................................... 25
No carbonated water at any of the dispensing valves ................................................... 27
Section 8: Syrup System ......................................................................................... 28
Section 9: Water Booster System ............................................................................... 30
Low or no water pressure at noncarbonated beverages ................................................. 30
Section 10: Water Filter System ................................................................................ 32
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Caution: To Avoid Serious Injury
Important: Read the following warnings before beginning an installation.
Failure to do so may result in possible death or serious injury.
DO Adhere to all National and Local Plumbing and Electrical Safety
Codes.
DO Turn “off” incoming electrical service switches when servicing,
installing, or repairing equipment.
DO Check that all flare fittings on the carbonation tank(s) are tight.
This check should be performed with a wrench to ensure a quality
seal.
DO Inspect pressure on Regulators before starting up equipment.
DO Protect eyes when working around refrigerants.
DO Use caution when handling metal surface edges of all equipment.
DO Handle CO2 cylinders and gauges with care. Secure cylinders
properly against abrasion.
DO Store CO2 cylinder(s) in well ventilated areas.
DO NOT Throw or drop a CO2 cylinder. Secure the cylinder(s) in an upright
position with a chain.
DO NOT Connect the CO2 cylinder(s) directly to the product container.
Doing so will result in an explosion causing possible death or
injury. Best to connect the CO2 cylinder(s) to a regulator(s).
DO NOT Store CO2 cylinders in temperature above 125°F (51.7°C) near
furnaces, radiator or sources of heat.
DO NOT Release CO2 gas from old cylinder.
DO NOT Touch Refrigeration lines inside units, some may exceed
temperatures of 200°F (93.3°C).
Notice: Water pipe connections and fixtures directly connected to a potable
water supply shall be sized, installed and maintained in accordance with
Federal, State, and Local codes.
00218012 Revision B (KAK) 7 August, 2000
1
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Foreword
This Troubleshooting Guide has been developed to assist you in determining what the Probable Cause
for any particular Problem you may experience with your Multiplex Beverage System could be. It then
advises of the proper Corrective Action to be taken to remedy that Problem.
Because of the ever present danger from electrical shock, and the existence of high pressure water
and gas on the system, it is strongly recommended that only qualified service personnel perform actual
repairs.
To use this guide you should first recognize the Problem. Once this has been accomplished, you
should refer to the Problem Cross Reference Guide, which will direct you to the troubleshooting
section or sections which may be responsible for that particular Problem.
Under each of the sections, Section 1: CO2 Gas System, Section 2: Carbonated Water System,
Section 3: Circulating System, Section 4: Compressed Air System, Section 5: Dispensing valve and
tower, Section 6: Electrical System, Section 7: Refrigeration System, Section 8: Syrup System,
Section 9: Water Booster System, and Section 10: Water Filter System, you’ll first find the Problem
listed in bold type starting on the left margin. It will be followed by three headings also in bold type
and each with its own column. The first is a Qualifier which is designed to quickly qualify or eliminate
the Probable Causes listed to the right and below the qualifying statement. Example: Under Section 7:
Refrigeration System, you’ll find three Qualifiers for the same problem, “Warm drinks”. Carbonated
Water Temperature over 40°F (5°C)”. Each asking you to determine the status of the Refrigeration
Compressor and Ice Bank before proceeding to the second column Probable Causes. Not all problems
have Qualifiers, but for those that do, first examine each one listed below the Problem before
continuing through Probable Causes. The third heading, Corrective Action found on the right margin,
will direct you in determining if the Probable Cause is actually responsible for the problem and what
should be done to remedy the problem.
On occasion, you’ll find “Note” and “Caution” statements which have been included to make
special references to items which frequently are misunderstood or ignored.
This guide is intended to assist you in locating the cause of a problem. It is not, however, to be
considered a service and repair manual in that Multiplex models vary in design.
It has been written to encompass all model Refrigeration Units. Some differences from model to
model will become obvious and it will be required of the reader to apply this guide to each unit. Of
main concern, is on Dual Carbonating and Circulating Systems you must consider there are two
separate Carbonating and Circulating Systems.
2
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
X
X
X
X
R
X
X
R
Water Filter
Water Booster
Syrup
Refrigeration
Electrical
X
X
R
Dispenser
X
X
X
Compress Air
Circulating
No carbonated water
Carbon particles in drink
Flat drinks
No or insufficient non-carbonated water
Warm drinks
No or insufficient syrup
Peculiar taste carbonated water
Peculiar taste non--carbonated water
Peculiar taste syrup
Carb and booster pump noisy
Air compressor operates excessively
Loss of CO2 gas
Drinks too sweet
Too much syrup
Too much carbonated water
Too much non-carbonated water
Foaming
Booster pump/motor won’t cycle “off”
Booster pump/motor won’t cycle “on”
Excessive Carbonation
Low pressure CO2 alarm won’t cycle “on”
Low pressure CO2 alarm won’t cycle “off”
Water found in primary regulator
Booster pump/motor won’t cycle “off”
Booster pump/motor won’t cycle “on”
Product dripping from nozzle
Valves will not activate
Valves will not shut “off”
Unit totally inoperative
Carbonated
CO2
Problem Cross Reference Guide
X
X
X
X
R
X
X
X
R
X
X
X
X
R
R
X
R
R
R
X
R
X
X
X
X
R
R
R
X
R
R
X
X
X
X
X
X
X
X
X
X
X
X
X - Specific problem listed in section
R - Problem refer to from section with “X”
00218012 Revision B (KAK) 7 August, 2000
3
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 1: CO2 Gas System
On units not equipped with Air Pump, check all Probable Causes listed below.
Qualifier
If leak occurs while
Change-over valve is
positioned on Air, follow
the “Probable Causes”
(for units equipped with
Air Pump).
If leak occurs only while
Change-over valve is
positioned on CO2, refer
to Troubleshooting
“Section 8: Syrup System”.
4
Probable Cause
Loss of CO2
Corrective Action
CO2 Tank leaking.
Use a soap solution around CO2 Tank valve Stem
to locate leaks. If leaks are present, bubbles
will appear. If valve Stem leaks at Tank, replace
CO2 Tank.
CO2 Washer damaged or
missing.
Use a soap solution around Primary Regulator
Coupling Nut and CO2 Tank Stem. If bubbles appear, remove Regulator and replace CO2 Washer
found inside Nut. Secure Regulator to Tank and
check for leaks.
Primary Regulator Diaphragm leaking.
Use a soap solution around Primary Regulator
Adjustment Screw in Bonnet. If bubbles appear,
diaphragm is leading. Replace Primary Regulator.
Ruptured Line Assembly or
leaks at connections.
Use a soap solution around all connections. If
bubbles appear, tighten loose connections carefully.
A to B Change-over Valve
leaking.
Use a soap solution around A and B CO2 Tank
Change-over Valve, tighten if bubbles appear
at Connections to stop leaks.
CO2 Low Pressure Switch
leaking.
Use a soap solution around Low Pressure CO2
Switch. If bubbles appear at pipe, tighten Connection. If bubbles appear at Terminal end of
Switch - replace Switch.
CO2 Check valve leaking.
Use a soap solution around Check valve. If
bubbles appear, tighten Connection to stop
leaks.
Back Flow Preventer stuck
open.
Use a soap solution around Back Flow Preventer. Tighten if bubbles appear at connection. If
bubbles appear at Vent Hole on underside of
Back Flow Preventer, clean out or replace Back
Flow Preventer valve and corresponding Water
Check valve.
Carbonator Tank Relief
valve leaking.
Use a soap solution around Relief valve. If
bubbles appear, replace Relief valve.
Gas leak at the syrup system.
Refer to Troubleshooting “Section 8: Syrup System” under No syrup or insufficient syrup in
finished drink.
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 1: CO2 Gas System (continued)
Qualifier
Probable Cause
Corrective Action
Flat drinks (lack of carbonation in carbonated water)
Primary Regulator (less
than 500 psi [34.5 bar]).
CO2 Supply exhausted (CO2
Tank is functionally empty
if pressure reads less than
500 psi [34.5 bar]).
Verify CO2 Tank pressure is a minimum of
500 psi (34.5 bar) on the Primary Pressure Regulator Gauge marked 0-2000 psi. Replace tank if
necessary.
Primary Regulator out of
adjustment or inoperative.
Verify CO2 Primary Regulators are set at 90 psi
(6.3 kg/cm2). Adjust if necessary. If Regulator
will not stay in adjustment, replace Regulator.
A and B CO2 Tank Changeover Valve incorrectly positioned.
If A and B CO2 Tank Change-over Valve is positioned on an empty Tank or halfway between A
and B operating positions, CO2 is not supplied
to Carbonators. Insure valve handler is in the
“operating” position.
Malfunction of the Refrigeration System.
Refer to Troubleshooting “Section 7: Refrigeration System” under Warm drinks.
Water Filter restricted.
Refer to Troubleshooting “Section 10: Water
Filter System” under Peculiar taste.
Malfunction of the Carbonated Water System.
Refer to Troubleshooting “Section 2: Carbonated Water System” under Flat drinks.
Excessive carbonation
(foaming).
Primary Regulators set too
high.
Verify CO2 Primary Regulators are set at 90 psi
(6.3 kg/cm2). Adjust if necessary. If Regulator
will not stay in adjustment, replace regulator.
Replace.
Low Pressure CO2 Warning light or buzzer does
not come “on”.
Warning lamp or buzzer
burned out. Transformer
inoperative.
When CO 2 Tank is empty and CO2 warning
lamp(s) or buzzer fail, verify voltage across
Transformer. If no voltage, replace Transformer.
Pressure Switch defective.
If CO2 Warning lamps or buzzer and transformer
are operative. Pressure Switch is defective and
must be replaced.
CO 2 Supply adequate
(greater than 500 psi
[34.5 bar]).
00218012 Revision B (KAK) 7 August, 2000
5
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 1: CO2 Gas System (continued)
Qualifier
Probable Cause
Corrective Action
Flat drinks (lack of carbonation in carbonated water) (continued)
Low Pressure CO2 Warning light or buzzer does
not go “off”.
Water found in CO 2
Regulator and lines.
6
Leaks on system.
If leaks exist on CO2 System, not enough pressure is maintained to allow Pressure Switch to
cut “off” CO2 Warning light or buzzer. Use a
soap solution to located possible leaks. Tighten
connections carefully.
Primary Regulator out of
adjustment.
Check CO2 supply. The Primary Regulators must
be set at 90 psi (6.3 kg/cm2). Adjust if necessary. If regulator will not stay in adjustment,
replace regulator.
Pressure Switch inoperative.
Carefully disconnect one wire from the CO2
Pressure Switch, if CO2 Warning Lamps go out,
the CO2 Pressure Switch is defective and should
be replaced. Carefully disconnect one wire from
the CO2 Pressure Switch, if CO2 Warning Lamps
go out, the CO2 Pressure Switch is defective
and should be replaced.
CO2 Check Valve defective.
Turn CO2 “off” at CO2 Tank valve. Remove top
Cover from Remote Refrigeration Unit. Locate
CO2 Check valve on top of Carbonator Tank.
Remove CO2 line on Inlet side of Check Valve. If
CO2 is present, escaping from Carbonator Tank,
clean out or replace Check valve.
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 2: Carbonated Water System
Qualifier
Probable Cause
Corrective Action
Flat drinks
Malfunctioning of Refrigeration System.
Beverages at dispensing
tower are above 40°F
(5°C).
Malfunctioning of Circulating System.
Beverages at dispensing
tower are below 40°F
(5°C).
Refer to Troubleshooting “Section 7: Refrigeration System” under Warm drinks.
Refer to Troubleshooting “Section 3: Circulating System” under Warm drinks.
CO2 supply exhausted.
Verify CO2 Tank pressure is a minimum of 500 psi
(35 kg/cm 2) on Primary Pressure Regulator
Gauge marked 0-2000 psi. Switch to full tank if
necessary.
Insure CO2 Shut-off Valves to Carbonators are
both in the “on” position. Refer to Troubleshooting “Section 1: CO2 Gas System” under
Flat drinks.
Primary CO2 Regulator out
of adjustment or inoperative.
Verify CO2 Primary Regulators are set at 90 psi
(6.3 kg/cm2). Adjust if necessary if Regulator
will not stay in adjustment replace Regulator.
Water Regulator incorrectly adjusted or inoperative.
Verify Filtered Water Pressure Gauge registers
55 psi (3.9 kg/cm2), if higher than 55 psi, flooding of Carbonator will occur. To adjust, loosen
Locknut, turn Adjustment Screw clockwise to
increase, counterclockwise to decrease. If regulator will not respond to adjustments, replace
regulator.
Improper water treatment.
Verify By-pass handle is in the “filter operating” position. Insure Filter Cartridge is still effective, if necessary replace Cartridge. Refer
to Troubleshooting “Section 10: Water Filter
System.”
Carbonator Pump worn
(Brass pump).
Dispense Carbonated Water while listening for
carbonator pump and motor to cycle “on” at
Refrigeration Unit. Pumps should operated between 6 to 12 seconds before cycling “off”. If
operating time exceeds 30 seconds carbonator
pump is worn, replace Pump.
Pressure Relief Valve is
leaking.
Remove top cover from Remote Refrigeration
Unit. Dispense Carbonated Water until carbonator Pumps and Motor cycle “on”. Observe Pressure Relief Valves on carbonator Tank. If water
is observed escaping from either, replace leaking Relief valve.
Note: Do not confuse the Water Bath Make-up
valve for the carbonator Tank Relief valves.
00218012 Revision B (KAK) 7 August, 2000
7
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 2: Carbonated Water System (continued)
Qualifier
Probable Cause
Corrective Action
Flat drinks (continued)
Beverages at Dispensing
Tower are below 40°F
(5°C). (continued)
8
Back Flow Preventer.
Remove top cover from Remote Refrigeration
Unit. Use a soap solution around Back Flow Preventer. If bubbles appear at Vent Hole or underside of Back Flow Preventer, clean or replace Back Flow Preventer and corresponding
Water Check valve carbonator Tank.
Double Check valve (water) stuck open.
With top cover from Remote Refrigeration Unit
removed and carbonator Pump Switch and Water turned “off”, loosen water supply line at
inlet side of Double Check valve Assembly. If
CO2 gas escapes from Check valve, it must be
cleaned or replaced.
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 2: Carbonated Water System (continued)
Qualifier
Probable Cause
Corrective Action
No carbonated water at any of the dispensing valves
No CO 2 gas or water
present at dispensing
valves.
CO2 gas is present at
dispensing valves but no
water.
Malfunction of Refrigeration System.
Refer to Troubleshooting “Section 7: Refrigeration System” under No carbonated water at
any of the dispensing valves (freeze up).
Malfunction of Circulating
System.
Refer to Troubleshooting “Section 3: Circulating System” under No carbonated water at any
of the dispensing valves.
No power to carbonator.
Verify toggle switch for Carbonator is in the
“on” position and Main Power Supply is “on”.
Water supply restricted to
carbonator pump.
Verify water to unit by observing Filtered Water Pressure Gauge. It should register 55 psi
(3.9 kg/cm2). To adjust, loosen Locknut, turn
Adjustment Screw clockwise to increase, counterclockwise to decrease. If regulator will not
respond to adjustments, replace regulator. Examine Water Shut-off Valve(s) to Carbonator and
insure they are in the “on” position.
Water Filter restricted.
Place Filter By-pass Valve into the Filter Bypass position. Replace Cartridge Filter. Reposition valve handle to “operating” position.
Water Inlet
clogged.
strainer
Remove Filter Screen from Inlet Strainer in carbonator Pump (Brass), flush with water to clean
and reassemble.
Liquid Level Control defective.
Push Toggle Switch for carbonator and circulator to the “off” position. Shut “off” Main Power
Supply unit. Remove electrical Access Panel
from unit. Locate liquid level control. Using a
pair of insulated needle nose pliers, carefully
remove the white wire from the terminal
marked “H” and the black wire from the terminal marked L on the Liquid Level Control
Board. Position safely to side. Turn “on” Main
Power Supply. Push carbonator Switch to the
“on” position. If carbonator pump and motor
do not cycle “on” immediately, that Liquid
Level Control is defective. Replace.
Electrode Assembly defective.
If Liquid Level Control is operating, test the
Electrode Assembly, refer to Probable Cause
“Liquid Level Control Defective”. Verify wire
leads are dry and that they are not touching. If
not, replace Electrode.
00218012 Revision B (KAK) 7 August, 2000
9
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 2: Carbonated Water System (continued)
Qualifier
Probable Cause
Corrective Action
No carbonated water at any of the dispensing valves (continued)
CO2 gas is present at
Dispensing Valves but
no water.
(continued)
10
Carbonator Pump worn
(Brass pump).
Dispense Carbonated Water while listening for
carbonator pump and motor to cycle “on” at
Refrigeration Unit. Pumps should operate between 6 to 12 seconds before cycling “off”. If
operating time exceeds 30 seconds, carbonator
Pumps is worn, replace Pump.
Motor defective.
If Motor will not operate, verify voltage across
Motor Terminals with voltmeter. If voltage reads
110 to 120 VAC, the Motor or Pump is defective. Loosen the Coupling Clamp with a flatblade screwdriver and disengage Pump from
Motor. If Motor still will not operate with Pump
disengaged, Motor is defective. Replace.
Carbonator Pump frozen.
Loosen the Coupling Clamp with a flat-blade
screwdriver and disengage Pump from Motor.
By hand, turn the Coupling Key in back of Pump.
If pump shaft will not spin freely, Pump is defective and must be replaced.
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 2: Carbonated Water System (continued)
Qualifier
Probable Cause
Corrective Action
Carbonator pump and motor will not cycle “off” (possibly noisy pump)
Little or no carbonated Primary CO2 Regulator ad- Verify CO2 Primary Regulators are set at 90 psi
water at dispensing justed at extremely high (6.3 kg/cm2). Adjust if necessary. If regulator
will not star in adjustment, replace regulator.
valve.
pressure.
Water supply to Carbonator Pump shut-off or restricted.
Verify water to unit by observing Filtered Water Pressure Gauge. It should register 55 psi
(3.9 kg/cm2). Examine Water Shut-off Valves to
carbonator and insure they are in the “on” position. Examine Pump Strainer for restriction.
Clean if necessary.
Water Filter restricted.
Place Filter By-pass valve into the “Filter Bypass” position. If carbonator pump and motor
immediately cycle “off”, Filter Cartridge is restricted. Replace Cartridge.
Back Flow Preventer or
Double Check Valve.
Examine Filter Water Pressure Gauge. If it registers 90 psi (6.3 kg/cm2) CO2 gas is passing from
the carbonator tank and through the Back Flow
Preventer or Double Check Valve, preventing
water from entering pump. Clean or replace
Back Flow Preventer/Double Check Valve.
Carbonator Pump worn.
Remove top cover from Remote Refrigeration
Unit. Locate Toggle Relief Valve on Carbonator
Tank and lift lever to allow CO2 gas to escape
from Tank for 30 seconds. If during this time
Carbonator Pump cycles “off”, pump is worn
and should be replaced.
Coupling Key defective.
Loosen the Coupling Clamp with a flat-blade
screwdriver and disengage Pump from Motor.
Examine Coupling Key in Pump. If defective,
replace.
00218012 Revision B (KAK) 7 August, 2000
11
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 2: Carbonated Water System (continued)
Qualifier
Probable Cause
Corrective Action
Carbonator pump and motor will not cycle “off” (possibly noisy pump) (continued)
Carbonated Water at Liquid Level Control defec- Shut “off” main power supply to unit and push
dispensing valve.
tive.
Toggle Switch for Carbonator and Circulator to
the “off” position. Remove Electrical Access
Panel from Refrigeration Unit and locate Liquid Level Control. Strip a 1 1/2" (3.8 cm) piece
of solid strand wire of insulation to use as a
jumper. Turn main power supply unit “on” to
unit. With a pair of insulated pliers, jump across
Terminals marked “G, H and L” on Liquid Level
Control. Simultaneously, while pushing corresponding Toggle Switch to “carbonator” to the
“on” position. If carbonator pump and motor
continue to operate after Liquid Level Control
Jumper Wire is in place, Liquid Level Control is
defective, replace.
Electrode defective.
Examine wire leads to insure no breaks in connections. Remove and clean Electrode with find
sand paper and reinstall.
Note: Reversing Electrode Wire Leads on either electrode or Liquid Level Control will
cause erratic operation of carbonator Motor.
Refer to Wiring Diagram.
Peculiar taste in carbonated water only.
Water filter contaminated.
Refer to Troubleshooting “Section 10: Water
Filter System” under Peculiar taste.
Back Flow Preventer Valve
leaking or Double Check
Valve leaking.
Push Toggle Switch for carbonator to the “off”
position. Turn Water Shut-off Valve to carbonator to the “off” position. Remove tope cover
from Remote Refrigeration Unit. Carefully disconnect water line on the outlet side of the
carbonator pump. If water or CO2 is observed
continually escaping from line, Back Flow Preventer/Double Check Valve is leaking. Disassemble, clean, and replace if necessary.
Caution: Carbonated water must never be allowed to flow through materials other than
plastic or stainless steel. (Copper, zinc or galvanized material is non-acceptable.)
Carbonated water flowing
through materials other
than plastic or stainless.
12
Trace carbonated water flow through system.
Insure no foreign materials are present. Replace
non-acceptable material if found.
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 2: Carbonated Water System (continued)
Qualifier
Probable Cause
Corrective Action
Carbonator pump and motor will not cycle “off” (possibly noisy pump) (continued)
Carbon particles in fur- Malfunction of Water Fil- Refer to Troubleshooting “Section 10: Water
nished drink.
ter.
Filter System” under Carbon particles in finished drinks.
Carbonator
Motor
cycles “on” and “off”
in short cycles.
Defective Carbonator
Pump.
Remove top cover from Refrigeration Unit.
Loosen Coupling Clamp with a flat-blade screwdriver and disengage pump from motor. Turn
the Coupling Key by hand, in back of pump. If
pump shaft does not turn freely and/or Carbon
is found in pump, carbon veins are defective.
Replace pump.
Defective Circulating
Pump.
Refer to Troubleshooting “Section 3: Circulating System” under Carbon particles in finished
drinks.
Electrode Assembly incorrectly wired or defective.
Examine wiring diagram found on Refrigeration
Unit. Verify Electrode wiring leads are on proper
terminals of both Electrode and Liquid Level
Control. If problem still occurs, replace electrode.
00218012 Revision B (KAK) 7 August, 2000
13
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 3: Circulating System
Qualifier
Probable Cause
Corrective Action
Warm drinks
Drinks warm throughout
the day, warm all the
time.
Malfunction of Refrigeration System.
Refer to Troubleshooting “Section 7: Refrigeration System” under Warm drinks (carbonated
water temperature over 40°F [5°C]).
Drinks warm during periods of low demand,
much colder during periods of high demand.
No power to Circulating
Motor.
Verify Switch to Circulating Motor is in the “on”
position and Main Power Supply is “on”.
Carbon Particles in finished drink.
Motor defective.
Using a flat-blade screwdriver, loosen the Coupling Clamp and disengage Pump from Motor. If
Motor will not operate, verify voltage across
Motor Terminal with voltmeter. If voltage reads
from 110 to 120 VAC, the Motor is defective
and should be replaced.
Circulating Pump defective (stainless steel).
Dispense approximately 1 gallon of carbonated
water at dispensing valves. If temperature of
carbonated water drops, Circulating pump is
not operating. Examine Coupling Key found
between Pump and Motor Shaft. If coupling key
is defective, replace. If key is operational, Circulating pump is defective, replace.
Malfunction of Water Filter.
Refer to Troubleshooting “Section 10: Water
Filter System” under Carbon particles in finished drinks.
Malfunction of Carbonated
Water System.
Refer to Troubleshooting “Section 2: Carbonated Water System” under Carbon particles in
finished drinks.
Circulating Pump defective (Stainless Steel).
Remove top cover from Refrigeration Unit.
Loosen Coupling Clamp with a flat-blade screwdriver and disengage Pump from Motor. Turn
Pump shaft with screwdriver. If Pump does not
turn freely and/or carbon is found in Pump,
carbon veins in pump are defective. Replace
Circulating Pump.
No CO 2 gas or water
present at dispensing
valve.
14
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 3: Circulating System (continued)
Qualifier
Probable Cause
Corrective Action
Warm drinks (continued)
CO2 gas is present at
dispensing valves but no
carbonated water.
Malfunction of Refrigeration System.
Refer to Troubleshooting “Section 7: Refrigeration System” under No carbonated water at
dispensing valve (freeze up).
Particles obstructing flow
through Circulating Circuit
(In-line Strainer).
Remove top cover from Remote Refrigeration.
Push toggle switch to carbonator and circulator to the “off” position. Lift lever on Toggle
Relief valve at top of carbonator Tank until pressure is completely released. Remove In-line
Strainer Screen. Flush with clean water and reassemble.
Malfunction of Carbonating
System.
If CO2 gas is present at the Dispensing Valves
and there is no water, the problem is in the
Carbonated Water System. Refer to Troubleshooting “Section 2: Carbonated Water System.”
00218012 Revision B (KAK) 7 August, 2000
15
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 4: Compressed Air System
Until repairs can be made on Compressed Air System, place Air/CO2 Change-over Valve in the CO2 Operating position.
Qualifier
Probable Cause
Corrective Action
No syrup
Air Compressor will not
cycle “on” and Air Pressure Gauge registers
0 psi.
Air Compressor cycles
“on” and “off” and Air
Pressure Gauge readings
range between 70 psi
(4.9 kg/cm2) to 90 psi
(6.3 kg/cm2).
16
No power to Air Compressor.
Verify Toggle Switch to Air Compressor is in the
“on” position and main power supply is “on”.
Pressure Switch defective.
Remove Pressure Switch Cover and use a voltmeter across Switch to determine whether
“open” or “closed”. If in “open” position, replace switch.
Motor defective.
Verify voltage across Motor with a voltmeter, if
Motor/Pump assembly will not operate, it is defective and should be replaced.
Pump frozen.
Same as above for Motor defective.
Air/CO2 Change-over Valve
placed in incorrect position.
Place Air/CO2 Change-over Valve to the Air or
CO2 “operating” position.
Malfunction of Syrup System.
Refer to Troubleshooting “Section 8: Syrup System”, under No syrup.
Malfunction of Refrigeration System.
Refer to Troubleshooting “Section 7: Refrigeration System”, under No carbonated water at
dispensing valves (freeze up).
Note: If lever is positioned between Air and
CO2 the gas supply is shut “off” to syrup system.
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 4: Compressed Air System (continued)
Qualifier
Probable Cause
Corrective Action
No syrup (continued)
Air Compressor operates excessively.
Leak at Shake Machine,
Orange Juice Dispenser or
other optional equipment.
Turn air supply to Shake Machine to “off” position. If Air Compressor cuts out and maintains
pressure, leak is at Shake Machine or Orange
Juice Dispenser. Refer to manufacturer’s
manual for Troubleshooting.
Leak at Compressed Air
System.
Use a soap solution around all connections starting from the Air Motor/Pump assembly to the
Low and Medium Pressure Syrup Regulators. If
bubbles appear, tighten loose connections carefully.
Automatic Drain or Petcock leaking.
Place drain line for bottom of Automatic Drain
or Petcock in cup of water. If air bubbles appear, Automatic Drain or Petcock is leaking.
Clean and/or replace as necessary.
Air leak in syrup system.
Refer to Troubleshooting “Section 8: Syrup System” under No syrup, air leak at syrup system.
Restricted Germicidal Filter on Air Compressor.
Replace Germicidal Filter.
Note: This Filter is not designed to be cleaned,
but must be replaced when exhausted.
Water in Air Accumulator
Tank.
Verify Automatic Drain is operating. If inoperative or defective, replace. If unit is not
equipped with Automatic Drain use Petcock to
remove water from tank.
Motor/Pump Assembly inoperative.
If Motor/Pump assembly operate without building up to 90 psi (6.3 kg/cm2) as needed to cycle
“off”. Pump Assembly is defective and must
be replaced.
Pressure Switch improperly adjusted or defective.
Observe Air Pressure Gauge to insure proper
cycle “on” at 70 psi (4.9 kg/cm2) and cycle off
at 90 psi (6.3 kg/cm2) settings. Refer to instructions found under Switch cover for adjusting.
If Switch will not respond to adjustment, replace switch.
Check valve defective.
While Air Compressor is in the “off” cycle, use
a soap solution around Head Gasket on Motor/
Pump Assembly. If bubbles appear, replace
Check valve located on the Air Accumulator
Tank.
00218012 Revision B (KAK) 7 August, 2000
17
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 4: Compressed Air System (continued)
Qualifier
Probable Cause
Corrective Action
No syrup (continued)
Peculiar taste in finished product.
18
Contaminated Germicidal
Filter on Air Compressor.
Replace Germicidal Filter.
Water in Air Accumulator
Tank.
Drain trapped water from tank by removing
Drain Line from top of Automatic Drain. Disassemble and clean Automatic Drain. If unit is
not equipped with automatic drain, use petcock to remove water from tank.
Water Filter contaminated.
Refer to Troubleshooting “Section 10: Water
Filter System” under Peculiar taste.
Note: This filter is not designed to be cleaned,
but must be replaced when exhausted.
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 5: Dispensing Valve and Tower
Qualifier
All corresponding valves
dispensing no syrup.
Probable Cause
Malfunction of syrup system.
Corrective Action
Refer to Troubleshooting “Section 8: Syrup System” under No syrup or insufficient syrup in
finished drink.
No syrup at only one
dispensing valve.
Syrup Shut-off Valve closed
or partially closed.
Remove top cover from Dispensing valve or
Tower. Locate Syrup Shut-off Valve on right hand
side of Dispensing valve. Verify shut-off is
turned fully open.
Mounting Block restricted.
Remove Dispensing valve from Mounting Block.
Place cup over Syrup outlet on Mounting Block
and carefully open Syrup Shut-off Valve. If little
or no syrup is present, Mounting Block is restricted. Remove and clean mounting block. Replace if necessary.
No syrup or insufficient syrup in finished drink
No carbonated water at
half or all dispensing
valves.
Flow Control our of adjustment or inoperative.
Readjust Flow Control to proper Brix. If no response, clean Syrup Flow Control. Replace if
necessary.
Valve Port restricted.
Clean Syrup valve Port Assembly.
Seat swollen.
Replace Syrup Seat.
Solenoid Coil defective.
Replace Syrup Solenoid Coil.
Malfunction of Carbonated
Water System.
Refer to Troubleshooting “Section 2: Carbonated Water System” under No carbonated water at any of the dispensing valves.
00218012 Revision B (KAK) 7 August, 2000
19
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 5: Dispensing Valve and Tower (continued)
Qualifier
Probable Cause
Corrective Action
No carbonated water or insufficient carbonated water in finished drink
No Carbonated Water
only at one dispensing
valve.
20
Carbonated water Shut-off
Valve closed or partially
closed.
Remove top cover from Dispensing valve or
Tower. Locate Carbonated Water Shut-off Valve
on left hand side of Dispensing valve. Verify
Shut-off Valve is turned fully open.
Mounting Block restricted.
Remove Dispensing valve from Mounting Block.
Place cup over Carbonated Water outlet on
Mounting Block and carefully open Carbonated
Water Shut-off Valve. If little or no Carbonated
Water is present, Mounting Block is restricted.
Remove and clean mounting block. Replace if
necessary.
Flow Control our of adjustment or inoperative.
Readjust Flow Control to proper Brix (5 oz in
4 seconds Standard valve, 10 oz in 4 seconds
Fast Flow valve). If no response, clean Carbonated Water Flow Control. Replace if necessary.
Valve Port restricted.
Clean Carbonated Water valve Port Assembly.
Seat swollen.
Replace Carbonated Water Seat.
Solenoid Coil defective.
Replace Carbonated Water Solenoid Coil.
Carbonated Water Switch
defective (black).
Replaced Carbonated Water Switch.
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 5: Dispensing Valve and Tower (continued)
Qualifier
Probable Cause
Corrective Action
No water or insufficient water in finished drinks
All valves dispensing
noncarbonated drinks
no water.
Water Shut-off Valve
closed or partially closed.
Problem occurs at only
one dispensing valve.
Refer to Troubleshooting “Section 9: Water
Booster System” under Low or No Water Pressure at Noncarbonated Beverages.
Refer to this section on No carbonated water
at only one dispensing valve in the dispensing valve.
Too much Syrup, Carbonated Water or Water
in finished drink. Problem occurs at only one
dispensing valve.
Syrup, carbonated water,
or noncarbonated water
flow control out of adjustment or inoperative.
Readjust appropriate Flow Control. If Flow Control does not respond to adjustment, clean Flow
Control. Replace if necessary. Carbonated Water Flow rates: (5 oz in 4 seconds Standard
valve, 10 oz in 4 seconds Fast Flow valve).
Too much syrup in finished drink. All valves
dispensing same flavortoo much syrup.
Malfunction of syrup system.
Refer to Troubleshooting “Section 8: Syrup System” under Drinks too sweet.
Too much water in finished drink. All valves
dispensing noncarbonated drink too much
water.
Malfunction of water
Booster system.
Refer to Troubleshooting “Section 9: Water
Booster System” under Qualifier: Pump and
motor cycles “on” and “off” excessively.
Syrup or Carbonated
Water or Water dripping
from Nozzle.
Valve port scarred.
Disassemble appropriate Syrup or Water Assembly. Examine valve Port for scars or nicks. Replace if necessary.
Armature Spring or Retaining Ring broken.
Disassemble appropriate Syrup or Water Assembly. Examine Armature, Spring and Retainer
Ring. If damaged, replace.
Seat scarred or obstructed.
Disassemble appropriate Syrup or Water Assembly. Examine Seat, if scarred, replace. If foreign material is found in Assembly, remove,
reassemble.
Transformer inoperative.
Verify wire leads from Transformer have solid
connections. Switch low voltage lead from
Transformer supplying power to left and right
hand side of Tower. If Valves operate and the
other three do not, Transformer is defective.
Replace.
Dispensing tower’s “on”
and “off” Toggle defective.
If after switching Leads, the three valves still
do not operate, the “on” and “off” Toggle
Switch is defective.
Valves will not activate
when Selection Panel
pressed. Problem occurs at two (2) or three
(3) consecutive Valves
on one (1) tower.
00218012 Revision B (KAK) 7 August, 2000
21
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 5: Dispensing Valve and Tower (continued)
Qualifier
Probable Cause
Corrective Action
No water or insufficient water in finished drinks (continued)
Problem occurs at all
valves on one (1) dispensing tower.
No power to transformer or
transformer defective.
Verify power with a voltmeter at wall outlet.
Verify power across low voltage leads on transformer. If 24 volts are present “on” and “off”
Toggle Switch is defective. Replace.
Problem occurs at only
one (1) dispensing
valve.
Dispensing tower’s “on”
and “off” is Switch defective.
Verify Main Power Supply and power at Transformer Leads replace “on” and “off” Switch if
operative.
Poor connection on valve
Wire Harness.
Trace wiring on defective valve and reconnect
any loose wires. Clean and reconnect any corroded connections.
Portion Control Timer inoperative.
Replace the problem valve Portion Control
Timer with a known Operative Timer. If valve
then operates, Portion Control Timer was defective. Replace.
Selection Switch inoperative.
Replace defective Portion Control Timer with
operative Timer. If Valves still will not activate,
Selection Panel is defective. Replace Selection
Switch.
Poor connection at Contact
Clips on Selection Panel
(with Portion Control
Timer).
Examine Contact Clips on Selection Panel and
insure proper contact between Portion Control
Timer and Contact Clips.
Moisture on Portion Control Timer or Contact Clips.
Remove top cover from Dispensing Tower. Remove all moisture from Portion Control Timer
and Contacts.
Portion Control Timer Adjustment Screw turned
beyond control limit.
Turn Portion Control Adjustment Screws on defective valve counterclockwise 10 complete
turns. If valve shuts off when selection is
pressed, readjust for proper portions.
Valve will not shut
“off”.
Note: Several revolutions may be necessary to
bring control back into range.
22
Portion Control Timer defective.
Verify above probables are not the problem.
Push “on/off” Switch for Dispensing Tower to
the “off” position. If valve ceases to dispense
when pushed to “on” position, Portion Control
Timer is defective. Replace.
Selection Panel defective.
Push “on/off” Switch for dispensing tower to
the “off” position. If valve ceases and then
continues to dispense when switch is pushed in
“on” position, Selection Panel is defective.
Replace.
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 5: Dispensing Valve and Tower (continued)
Qualifier
Probable Cause
Corrective Action
No water or insufficient water in finished drinks (continued)
Foaming of finished
products.
Nozzles, Syrup Tube Diffusers dirty.
Remove and clean Nozzle Assemblies and reassemble.
Warm drinks.
Refer to Troubleshooting “Section 7: Refrigeration System” under Warm drinks.
Incorrect pressure on
syrup.
Verify pressure supplied to sugar base products
is at 60 psi (4.2 kg/cm2). Adjust Medium Pressure Regulator if necessary. Verify pressure supplied to diet product is at 15 psi (1.1 kg/cm2).
Adjust Low Pressure Regulator if necessary.
Note: Insure the Low Pressure Supply Line has
not mistakenly been switched for a Medium
Pressure Supply Line on the diet tank.
Unit totally inoperative; all electrical
switches in the “on”
position.
Change-over Valve Medium
or Low Pressure is in the
wrong position.
Verify valve Medium to Low Pressure is in the
Low Pressure position for diet products.
Air or CO2 gas in syrup line.
Replace empty Syrup Tank. Dispense Syrup from
valve until consistent flow is achieved and product stabilizes. If evidence of air is still entering line, replace Liquid Disconnect which is allowing air to be drawn into syrup supply.
Flake ice.
Only cube ice should be used for carbonated
beverages.
Improper adjustment of
valve.
Insure carbonated water flow is properly set
(5 oz. in 4 seconds standard valve, 10 oz in
4 seconds Fast Flow valve). Insure Brix is properly set. Adjust as necessary.
Power failure, all power to
system is “off”, or Fuse/
Circuit Breaker is “open”.
Check Circuit Breaker. Reset. Examine Time Delay, replace if necessary.
00218012 Revision B (KAK) 7 August, 2000
23
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 6: Electrical System
Qualifier
Fuse/Circuit Breaker is
open.
Probable Cause
Short Circuit or overload
within unit.
Corrective Action
Push Toggle Switches labeled carbonator and
circulator to the “off” position. Push the Toggle
Switches for Booster Pump, Air Compressor, Agitator and Refrigeration to the “off” position.
Replace fuse(s) and reset circuit breaker. Push
the Toggle Switches “on” in the following sequence as labeled below, to locate short or
overload within unit, waiting momentarily between steps. *Agitator *Refrigeration *Carbonator A and/or B *Circulator A and/or B (after
carbonator Motor Cycles “off”) *Booster Pump
*Air Compressor.
Push the Agitator Toggle Switch in the “on”
position. If the fuse/circuit breaker opens, the
trouble is in the Agitator Motor Circuit. This
Circuit must be checked for shorts and/or overload. If the fuse/circuit breaker does not open
after running about 1 minute, the problem is
not in the Agitator Motor Circuit.
Push the Refrigeration Toggle Switch in the
“on” position. If the fuses/circuit breaker
opens, the trouble is in the Refrigeration Circuit. Refer to wiring diagram for possible faulty
components. Push the carbonator Toggle Switch
A to the “on” position. Draw Carbonated Water from the Dispensing valve until Pump cycles.
If the fuse/circuit breaker opens, the trouble
is in the carbonator Circuit. Refer to wiring diagram for possible faulty components.
Push the carbonator Toggle Switch B to the “on”
position. Follow procedure above for carbonator A. Push the Circulator Toggle Switch A to
the “on” position. If fuse/circuit breaker
opens, the trouble is in the Circulator Circuit.
Refer to wiring diagram for possible faulty components. Push the Circulator Toggle Switch B
to the “on” position. Follow procedure above
for Circulator A.
Push the Booster Pump Toggle Switch to the
“on” position (allow unit to cycle). If fuse/circuit breaker opens, the trouble is in the Booster
Pump Circuit. Refer to wiring diagram for possible faulty components.
Push the Air Compressor Toggle Switch to the
“on” position. (Allow unit to cycle). If fuse/
circuit breaker opens, the trouble is in the Air
Compressor Circuit. Refer to wiring diagram for
possible faulty components.
Important Note: Worn out Circuit Breakers or
low voltage are frequently responsible for
shorts and overloads. Contact service agent to
examine possible defective Circuit Breakers or
low voltage.
24
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 7: Refrigeration System
Until repairs can be made on unit with no Ice Bank, push Refrigeration and Agitator Switch to the “off”
position and ice down Bath using ice from Ice Maker.
Qualifier
Probable Cause
Corrective Action
Warm drinks (carbonated water temperature over 40°F [5°C])
Compressor operates
but no ice present at
water bath.
Water Bath Feeder Valve
inoperative (not enough
water in bath).
Remove tope cover from Remote Refrigeration
Unit. Verify if water level is considerably below Stand Pipe. If so, Water Make-Up valve is
inoperative. Remove, disassemble and clean out
valve. Replace, refill Bath and allow carbonator to cycle while inspecting valve to insure
proper operation. Replace if necessary.
Water leak inside bath.
Remove top cover from Remote Refrigeration
Unit. Inspect Water Bath at Stand Pipe. If considerable water is observed running over and
out the drain, there is a water leak inside Bath.
The leak causes the Ice Bank to melt as fast as
it’s formed. Drain Bath to located the leak, repair and refill bath.
Fan or Motor inoperative
(air cooled units).
Examine Fan and Motor on Air Cooled Units at
Condenser. If either are found to be inoperative while compressor is running, replace inoperative fan or motor.
Caution: Inoperative Fan and Motor can cause
short cycling of compressor.
Compressor operates
but no ice present at
water bath.
Condenser restricted.
For Air Cooled Units, clean the Condenser removing all dust and lint. On Water Cooled Units:
Using a thermometer verify temperature at
water discharge line. If operating outside of
the 95°F (35°C) to 105°F (41°C) range, adjust
Water Modulating valve, replace.
Caution: Restricted Condenser can cause short
cycling of compressor.
Excessively warm room.
Verify the Refrigeration Unit is operating in a
well ventilated area and that there are no obstructions blocking Condenser. If so, remove obstructions if inoperative.
Lack of Refrigerant
Charge.
Examine Sight Glass. If bubbles appear while
compressor is operating system is low on
charge. Refer to Serial Plate for proper refrigeration charge.
Defective Expansion
valve.
If no bubbles appear in Sight Glass then examine suction line, frost on the suction line is a
sign of defective Expansion valve. Replace if
inoperative.
00218012 Revision B (KAK) 7 August, 2000
25
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 7: Refrigeration System (continued)
Qualifier
Probable Cause
Corrective Action
Warm drinks (carbonated water temperature over 40°F [5°C]) (continued)
Compressor operates
with Ice present at water bath.
Defective Agitator Motor
Assembly.
Remove top cover from Remote Refrigeration
Unit. Examine the Agitator Motor Assembly, insure propeller is secured to Agitator and that
the Agitator Switch is in the “on” position, allowing the water in Bath to be agitated across
the cooling coils. If Motor or Propeller is inoperative, replace.
Malfunctioning of Circulating System.
If ice is present on Evaporator Coil and Agitator Motor Assembly is operating the Refrigeration System is functioning. However, the Circulating System may not be functioning. Refer
to Troubleshooting “Section 3: Circulating System”.
Caution: Always make certain that proper line
voltage is present.
Compressor won’t operate and no ice at water
bath.
26
Defective Switch.
Check to insure Refrigeration Switch is in the
“on” position.
Fuse/Circuit
open.
Breaker
Locate Circuit Breaker box and identify proper
breaker for Remote Refrigeration Unit. Insure
it is in the “on” position by switching “off”
and then “on” again. If breaker will not reset,
refer to Troubleshooting “Section 6: Electrical
System.”
Time Delay Fuse burned
out.
Inspect Time Delay Fuses at the wall quick shutoff panel. One of the fuses may be burned out
causing half the unit to shut down. If this is
suspected replace all of the fuses.
Defective High Pressure
Control.
Examine High Pressure Control to insure wire
leads are securely attached to terminals. If
trouble is suspected with control, replace.
Defective Ice Bank Control.
Remove Electrical Access Panel and using a voltmeter across the Ice Bank Control, verify control is in the “closed” position. If control is
found to be in the “open” position, that Control should be replaced.
Defective Contactor.
Remove Electrical Access Panel. Use a voltmeter across Contactor Coil. If current exists across
Coil, and Contactor remains “open”, Contactor
is defective. Replace.
Defective Relay or Defective Capacitor or Defective
Overload.
Examine Relay/Capacitor/Overload to insure
wire leads are securely attached to terminals.
Replace any faulty components.
Defective compressor.
If after checking each of the above items, you
still experience problems, test compressor for
possible defects or grounding.
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 7: Refrigeration System (continued)
Qualifier
Probable Cause
Corrective Action
No carbonated water at any of the dispensing valves
CO2 gas is present at
dispensing valves but no
Carbonated Water.
Malfunctioning of Carbonating System.
In a “freeze up” situation, push Refrigeration
and Agitator Toggle Switches to the “off” position. Drain water from Bath. Pour lukewarm
(never hot) water over the Product Coils until
thawed. Ice down Water Bath using ice from
Ice Maker until further repairs can be made.
No CO 2 Gas or water
present at dispensing
valve.
On units equipped with
the “Red” Refrigeration
Warning Light.
If CO2 gas is present at the Dispensing Valves
and there is no water, the problem is in the
Carbonated Water System. Refer to Troubleshooting “Section 2: Carbonated Water System.”
Defective Agitator.
Examine the Agitator Motor Assembly. Insure
Propeller is operating and secured to Agitator
and that the Agitator Toggle Switch is in the
“on” position. If Motor is inoperative, replace.
Defective Ice Bank Control.
Remove Electrical Access Panel. Use a voltmeter across the Ice Bank Control. Verify Control
is in the “open” position. If Control is stuck in
the “closed” position, the unit will “freeze up”.
Replace Control if necessary. If unit builds and
Ice Bank to the point of extending into stainless steel coils, the Ice Bank Control must be
replaced.
Defective Contactor.
Use a voltmeter across Contactor Coil. If no
current is present across Coil, but Contactor
remains “closed”, Contactor is defective. Replace defective Contactor.
Defective Primary Ice Bank
Control.
When the Refrigeration Warning Light illuminates, the Primary Ice Bank Control is defective and should be replaced. The Secondary
Control operates the Compressor until the Primary Control is replaced.
Refrigeration Warning
Light cycles “on” and
“off” with Compressor.
00218012 Revision B (KAK) 7 August, 2000
Note: When the Refrigeration Compressor
cycles “on”, Warning Light will turn “off”.
When the Compressor cycles “off” the light
will illuminate.
27
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 8: Syrup System
Qualifier
No syrup of insufficient
syrup in finished drink.
Probable Cause
Syrup Tank is empty.
Corrective Action
Replace Syrup tank and purge air out of Dispensing Valves affected, until steady syrup supply is dispensed.
Kinked Syrup lines.
Examine all exposed Syrup Lines and relieve
any sharp bends or kinks.
Note: Observe all independent lines from Syrup
Tank to Filters for kinks or bends. Correct as
needed.
28
Low Pressure Regulator inoperative.
Low Pressure Regulator controls the pressure
to diet beverages. Verify pressure is set at 15 psi
(1.1 kg/cm2). To increase, adjust clockwise, to
decrease, adjust counterclockwise. If regulator does not respond, repair or replace regulator.
Medium Pressure Regulator
inoperative.
Medium Regulator controls the pressure applied
to the sugar based beverages. Verify pressure
is set at 60 psi (4.2 kg/cm2). To increase, adjust clockwise. To decrease, adjust counterclockwise. If regulator does not respond, repair or replace regulator.
Check Relief valve restricted.
Disengage Gas Quick Disconnect on suspected
restricted flavor at Syrup Tank. Depress Poppet
valve on bottom side of Gas Disconnect. If a
low or poor pressure supply is apparent, replace
Check Relief valve.
Gas/Syrup Tank Plug Valves
inoperative.
Replace Syrup Tank. If this solves the problem,
tag defective tank so bottler can make necessary repairs. (It is extremely rare to have inoperative Tank Plug Valves.)
Quick Disconnects (Gas or
Syrup) not fully engaged on
Syrup Tank.
Disengage Quick Disconnects on one Tank at a
time. Rinse and clean with warm water. Lubricate the O-ring on the Syrup Tank Plug with
water. Reattach the Quick Disconnects to the
appropriate Syrup Tank Plug. Gas Quick Disconnects are gray or have two key slots. Syrup
Quick Disconnects are black or have three key
slots.
Quick Disconnect Valves or
Tank Jumper inoperative.
Gas Quick Disconnects: Open the Relief valve
on the top of the syrup tank lid. If the Gas Quick
Disconnect is opening properly, pressure should
continue to bleed from the Gas Relief valve. If
not, replace Gas Quick Disconnect. Syrup Quick
Disconnects: Open the Dispensing valve (Syrup
Side only) for appropriate flavor. Dispensing
syrup for at least 10 seconds. If CO2/Air pockets appear in syrup, replace Syrup Quick Disconnect. If syrup flow is inadequate or fluctuates during 10 seconds of flow, replace Syrup
Quick Disconnects.
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 8: Syrup System (continued)
Qualifier
No syrup of insufficient
Syrup in finished drink.
(continued)
Drinks too sweet.
Peculiar taste.
Probable Cause
Gas leak at Syrup System.
Corrective Action
Use a soap solution around all connections,
starting from the Low and Medium Pressure
Regulators to the base of the Syrup Tank Plugs,
observe Quick Disconnects, Tank Cap and Gasket, Tank Plugs and Syrup Tank O-rings for leaks.
Repair and replace if necessary.
Syrup Filter restricted.
Disengage Syrup Quick Disconnect from the appropriate Syrup Tank. Relieve pressure at the
corresponding Dispensing valve. Remove the
Screw clamp and the Filter Screen. Wash the
Filter Screen with warm water and reassemble.
Frozen Syrup Coil.
Refer to Troubleshooting “Section 7: Refrigeration System” under No carbonated water at
any of the dispensing valves (Freeze up).
Dispensing valve inoperative.
Refer to Troubleshooting “Section 5: Dispensing Valve and Tower” under No syrup or insufficient syrup.
Low Pressure Regulator inoperative.
Verify Low Pressure Regulator set at 15 psi
(1.1 kg/cm2). Adjust Regulator if necessary. If
Regulator will not respond, repair or replace
Regulator.
Medium Pressure Regulator
inoperative.
Verify Medium Pressure Regulator set at 60 psi
(4.2 kg/cm2). Adjust Regulator if necessary. If
Regulator will not respond, repair or replace
Regulator.
Dispensing valve inoperative.
Refer to Troubleshooting “Section 5: Dispensing Valve and Tower” under Too much syrup in
finished drink.
Contaminated Syrup.
Replace tank and sanitize the system.
00218012 Revision B (KAK) 7 August, 2000
29
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 9: Water Booster System
Qualifier
Probable Cause
Corrective Action
Low or no water pressure at noncarbonated beverages
Water Booster will not No power to Water Booster Verify Toggle Switch for “Booster Pump” is in
cycle “on”. Both the Pump.
the “on” position and main power supply is
pressurized filter water
“on”.
and filtered water pressure register 55 psi Pressure Switch defective. Remove Pressure Switch Cover and use a volt(3.8 bar).
meter across terminals to determine whether
“open” or “closed”. If in the “open” position,
replace Switch.
Motor defective.
If Motor will not operate, verify voltage across
Motor Terminals with a voltmeter. If voltage
reads from 110 to 120 VAC, the Motor is defective and should be replaced.
Pump frozen.
Loosen the Coupling Clamp with a flat-blade
screwdriver and disengage pump from Motor.
Turn the Coupling key by hand, in back of pump.
If pump shaft will not spin freely, Pump is defective and must be replaced.
Water Booster cycles
“on” and “off” and
pressurized Filtered
Water Gauged readings
range between 65 psi
(4.6 kg/cm2) to 85 psi
(6.0 kg/cm2).
Water supply shut-off after
Booster System.
Examine Shut-off Valve to “Plain Water to Unit”
and “Water to Coffee Machine” and insure both
are in the “on” position.
Frozen Water Coil.
Refer to Troubleshooting “Section 7: Refrigeration System” under No carbonated water at
any of the dispensing valves (freeze up).
Pump and Motor will not
cycle “off”.
Water supply to Booster
Pump shut “off”.
Examine the Shut-off Valve to Booster Pump and
insure valve is in the “on” position.
Restricted Water Filter.
Observe Filter Water Pressure Gauge. If pressure drops total of 40 psi (2.8 bar) or more when
pump cycles “on”. Replace filter.
Leak on Booster System
Pump Strainer obstructed.
Locate water leaks on system and repair. Remove Pump Strainer at Brass Booster Pump,
flush screen with water to clean. Reassemble
and position in place. Replace screen if necessary.
Pump Coupling Key defective.
Using a flat-blade screwdriver, loosen Coupling
Clamp and disengage Pump from Motor. Examine Coupling Key, if rounded off on either end,
replace.
Pump defective.
Examine Pressurized Filter Water Pressure
Gauge. If Pump and Motor continue to operate
but fail to build up to 85 psi (6.0 kg/cm2) in
order to cut off, pump is defective. Replace
Pump.
Pressure Switch improperly adjusted or defective.
Observe Pressurized Filtered Water Pressure
Gauge to insure proper cycle “on” at 65 psi
(4.6 kg/cm 2 ) and cycle “off” at 85 psi
(6.0 kg/cm2). Refer to instructions found under Switch Cover for adjusting. If Switch does
not respond to adjustment, replace switch.
30
00218012 Revision B (KAK) 7 August, 2000
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 9: Water Booster System (continued)
Qualifier
Probable Cause
Corrective Action
Low or no water pressure at noncarbonated beverages (continued)
Pump and Motor cycles
“on” and “off” excessively.
Leak on Booster System.
Locate water leaks on system and repair.
Check valve defective.
Observe Filtered Water Pressure Gauge. If pressure rises and drops with Pressurized Filtered
Water Gauge, the Water Inlet Check valve on
Pump is defective. Replace Check valve.
Pressure Switch improperly adjusted or defective.
Observe Pressurized Filtered Water Pressure
Gauge to insure proper cycle “on” at 65 psi
(4.6 kg/cm 2 ) and cycle “off” at 85 psi
(6.0 kg/cm2). Refer to instructions found under Switch Cover for adjusting. If Switch will
not respond to adjustment, replace switch.
Accumulator Tank pressure
set improperly.
Push Toggle Switch and Water Shut-off Valve to
Booster Pump to the “off” position. Activate
Plain Water button until water flow ceases.
Using a tire gauge verify a 60 psi (4.2 kg/cm2)
charge on Tank. Recharge if necessary.
Note: When charging Accumulator Tank, only
AIR should be used.
Peculiar taste in Noncarbonated beverages.
Accumulator Tank bladder
ruptured.
Repeat procedures above. If water is found inside Air Chamber when verifying pressure
charge, bladder is ruptured. Replace Accumulator Tank.
Motor overheating.
Using a flat-blade screwdriver, loosen Coupling
Clamp and disengage Pump from Motor. Turn
Coupling Key by hand, in back of Pump. If Coupling Key is difficult to turn, it may cause defective Motor to overheat. Replace Motor if
necessary.
Water Filter contaminated.
Replace Filter. Refer to Troubleshooting “Section 10: Water Filter” under Peculiar taste.
Accumulator Tank bladder
ruptured.
Replace Accumulator Tank. Refer to “Pump and
Motor Cycle ‘on’ and ‘off’ excessively” Accumulator Tank bladder ruptured.
Malfunction of Carbonated
Water System.
Refer to Troubleshooting “Section 2: Carbonated Water System” under Peculiar taste, Probable Cause: Back Flow Preventer leaking.
00218012 Revision B (KAK) 7 August, 2000
31
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of electrical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electrical tests are required.
DANGER: Use extreme care during electrical circuit tests. Live circuits may be exposed.
Section 10: Water Filter System
Until repairs can be made on the Water Filter, place valve handle into “filter By-pass” position.
Qualifier
Probable Cause
Carbon particles in finished drink.
Water By-pass valve is not
in the “filtering” position.
Verify By-pass valve handle is in the Filter “operating” position. If particles continue to appear, filter must be serviced.
Defective or damaged seal
on Filter Cartridge.
Verify O-rings are not twisted or nicked. Verify
Cartridge is solid and free of cracks. Replace if
necessary.
Filter Cartridge installed
without Inlet Seal.
Remove Cartridge from Canister. Clean Canister Lid and Shell assembly. Replace with new
Filter Cartridge, making sure to remove Water
Inlet Seal.
Defective
Pump.
carbonator
Refer to Troubleshooting “Section 2: Carbonated Water System”.
Defective
Pump.
Circulating
Refer to Troubleshooting “Section 3: Circulating System”.
Carbonator and Water
Booster Pump extremely noisy.
Peculiar taste.
32
Corrective Action
Restricted Water Filter.
Observe Filter Water Pressure Gauge. If pressure drops at total of 40 psi (2.8 bar) or more
when pump cycles “on”, replace filter.
Filter Cartridge installed
without removing Water
Inlet Seal.
Removed Cartridge from Canister. Clean Canister Lid and Shell Assembly. Install new Filter
Cartridge, making sure to remove Cartridge
Inlet Seal.
Water supply to Filer restricted.
Verify water supply is turned “on” to unit. Refer to Troubleshooting “Section 2: Carbonated
Water System” and “Section 9: Water Booster
System ” for additional solutions.
Water Filter contaminated.
Place Filter valve into “Filter By-pass” position.
Replace Filter and reposition valve handle to
“filter operating” position.
00218012 Revision B (KAK) 7 August, 2000
250 Old Ballwin Road w St. Louis, Missouri 63021-4800
Tel: 636.256.7777 w Fax: 636.527.4313
info@multiplex-beverage.com w www.multiplex-beverage.com
In accordance with our policy of continuous product development and improvement,
this information is subject to change at any time without notice.
00218012 Revision B (KAK) 7 August, 2000
Illustrated
Fittings and
Hardware
Catalog
Fountain Beverage
Dispensing Equipment
250 Old Ballwin Road w St. Louis, Missouri 63021-4800
Tel: 636.256.7777 w Fax: 636.527.4313
info@multiplex-beverage.com w www.multiplex-beverage.com
In accordance with our policy of continuous product development and improvement,
this information is subject to change at any time without notice.
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Table of Contents
Terms and Conditions Affecting Customer Purchase Orders, Shipments of Materials, and Ordering
Parts ..................................................................................................................
How to order .....................................................................................................
Terms .............................................................................................................
Method of shipment ............................................................................................
Purchaser pick-up ...............................................................................................
Service parts .................................................................................................
How to cancel an order ........................................................................................
Damaged and lost shipments ..................................................................................
Return of merchandise .........................................................................................
Replacement parts purchased for out-of-warranty equipment ..........................................
Replacement procedure .......................................................................................
1
1
1
1
1
1
1
1
1
1
1
Adaptors ............................................................................................................. 2
Barbed Connections ................................................................................................ 3
Cable Ties ........................................................................................................... 6
Calibrating and Cleaning .......................................................................................... 6
Check Valves ........................................................................................................ 7
Clamps ............................................................................................................... 9
Disconnects ......................................................................................................... 10
Syrup Filter ......................................................................................................... 10
Flare Connections ................................................................................................. 11
Gauges .............................................................................................................. 12
Pipe Connections .................................................................................................. 12
Compression Fittings .............................................................................................. 13
Pressure Reliefs .................................................................................................... 14
Pump Accessories .................................................................................................. 14
Regulators .......................................................................................................... 15
Strainers ............................................................................................................ 15
Insulation ........................................................................................................... 15
Tools ................................................................................................................. 16
Tubing ............................................................................................................... 18
Valves ............................................................................................................... 19
John Guest Fittings ................................................................................................ 21
How to use john guest fittings ............................................................................... 25
For stainless steel .............................................................................................. 25
Abbreviations
ALM
FF
MCD
N/A
OJ
S/S
W
WO
=
=
=
=
=
=
=
=
Aluminum
Female Flare
McDonald’s
Not Available
Orange Juice
Stainless Steel
With
Without
00218013 Revision C (KAK) 7 August, 2000
BRS
FPT
MF
NPB
PLS
STL
BRZ
GEN
=
=
=
=
=
=
=
=
Brass
Female Pipe Thread
Male Flare
Nickel PlatedBrass
Plastic
Steel
Bronze
General
MPT
NPT
=
=
PSI
=
THD
VAR
=
=
Male Pipe Thread
National Pipe
Thread
Pressure Square
Inch
Thread
Variable
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Terms and Conditions Affecting Customer
Purchase Orders, Shipments of Materials, and
Ordering Parts
How to order
Damaged and lost shipments
For prompt service and shipment, contact your
nearest Multiplex Company Stocking Distributor. A
listing of the stocking distributors can be obtained
by contacting Multiplex Company, Inc.
(636) 256-7777. To ensure prompt processing of your
orders, list each item separately, taking care to
specify quantity, the Multiplex part number and
description of each item ordered. Faster service can
be obtained in the future by listing your system
below.
The responsibility of Multiplex Co., Inc. ceases upon
acceptance of the products being shipped in good
condition by the carrier. Any damage or loss
sustained in shipment should be reported to the
delivering carrier immediately. The carrier is
responsible for all shipments. If you receive a
damaged shipment, ask the carrier’s agent for a
claim form and have the carrier prepare an
inspection report, a copy of Multiplex’s invoice, the
freight bill, and a letter estimating the cost of repair
or replacement must be submitted to the carrier
before they can process your claim. Compare the
number of cartons received against the number of
cartons listed on our packing list or Bill of Lading. If
they do not agree, be sure to note the shortage on
the delivery receipt before accepting delivery and
signing the delivery of the specified number of
cartons. UPS shipments are insured individually and
UPS will replace all merchandise that is lost. Notify
us immediately if you wish to trace merchandise
lost in transit.
Model Number ____________________________
Serial Number ____________________________
Date of Installation ________________________
Local Authorized
Stocking Distributor _______________________
Terms
Terms of NET 30 days will be extended to those
customers of known and acceptable financial
standing. All other orders must be accompanied by
check or will be shipped C.O.D. Please send all credit
information directly to our controller. Taxes imposed
by any present or future federal, state, or local laws,
if paid by us, will be charged to purchaser. Sales or
use taxes shall be in addition to prices quoted unless
an appropriate Tax Exemption Certificate is
furnished. Prices and terms, designs, materials,
specifications, weights and dimensions for
equipment or parts are subject to change without
notice.
Method of shipment
All merchandise is priced F.O.B. factory. All
shipments are carefully packed and labeled to
prevent damage or loss. Crates, boxes and cartons
used are of approved weight and strength. Orders
not routed by the purchaser will be shipped at our
discretion via the best method possible without any
liability on our part for such selection.
Purchaser pick-up
Return of merchandise
No merchandise is to be returned without our
approval. The purchaser must prepay the freight
for all returned goods. After receiving our approval,
all merchandise must be returned to our factory at
250 Old Ballwin Road, St. Louis, Missouri 63021.
Multiplex is not responsible for merchandise
returned to any location other than our factory.
The merchandise authorized to be returned must
be in new, unused condition and in its original carton
with all original packaging.
A credit will be allowed amounting to the original
selling price or current selling price, whichever is
lower, less a 15% restocking charge, with a minimum
charge of $25.00 for each return to cover cost of
receiving, inspection, testing, repackaging, and
processing all documents.
Replacement parts purchased for
out-of-warranty equipment
Service parts
Orders must be received at least 24 hours prior to
personal pick-up.
These parts will be repaired or replaced on an even
exchange basis (no labor allowance) during the 90
day period following shipment from our factory.
How to cancel an order
Replacement procedure
Multiplex will not accept the cancellation of any
order for special or proprietary equipment or parts
unless we receive payment of reasonable charges
based on expenses already incurred and
commitments made by Multiplex.
Prior approval must be received from Multiplex
before a unit, motor compressor and/or components
may be returned for replacement or repair. Any unit
or component returned, freight collect, will be
refused and returned to sender.
Multiplex will not accept any used equipment for
credit. The minimum invoice charge is $25.00 per
order.
00218013 Revision C (KAK) 7 August, 2000
1
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Adaptors
Item
Part No.
Nitrogen Adaptor
(for use with Primary Regulator)
00204859
1
Size 1
Male Pipe Thread x
00852505
1
Male Flare (Straight)
00852504
1
00852509
1
00852503
00852502
00852528
3
00852532
1 2
00858514
1 2
00852553
1 8
/4" MPT
Size 2
/4" MF
Brass
/4" MF
Brass
/8" MF
Brass
/8" MPT
1
/4" MPT
1
/4" MPT
3
3
/8" MPT
1
/4" MF
Brass
/8" MPT
3/8" MPT
3
/8" MF
1/2" MF
Brass
Brass
/ " MF
Brass
/ " MPT
3 8
/ " MPT
1 2
/ " MPT
3 8
/ " MPT
3 8
/ " MPT
1 4
/4" MPT
3
/8" MPT
1
/8" MPT
3
/8" MPT
1
/ " MF
Brass
/ " MF
Stainless Steel
/ " MF
Stainless Steel
/ " MF
Brass
/8" MF
Brass
/4" MF
Brass
/8" MF
Brass
/2" MF
Brass
/8" MF
Brass
/2" MF
3/8" MF
Brass
Stainless Steel
00852523
3 8
00857600
1 4
Male Flare (Elbow - 90)
00857604
1
00857603
3
00855902
3
00857608
3
00857609
1
/2" MPT
3
00855925
00855926
1
/2" MPT
3/8" MPT
1
1
3
Description
Brass
Male Pipe Thread x
Tees
Size 3
/2" Nitro
1
00858432
1 8
00858412
1
/ " MPT
1 4
/4" MPT
1
00858476
1
/4" MPT
00858408
1
00858435
1
00858425
3
/ " MF
1 4
/4" MF
1
3
/8" MF
3
/4" MPT
1
/8" MPT
1
/8" MPT
3
/4" MF
1
/4" MF
3
/8" MF
3
/ " MF
Brass
/4" MF
Brass
/8" MF
Brass
/4" MF
Brass
/4" MF
Brass
/8" MF
Brass
2
1
3
2
Female Pipe Thread x
00858505
1 8
Male Flare (Straight)
00858501
1 4
00852512
1 4
00858502
3 8
Plugs - Barbed
2
/ " FPT
1 4
/ " FPT
1 4
/ " FPT
3 8
/ " FPT
3 8
00861518
1 4
00861308
3 8
00861315
1
/ " MF
Brass
/ " MF
Brass
/ " MF
Brass
/ " MF
Brass
/"
Stainless Steel
/"
Stainless Steel
/2"
Stainless Steel
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Barbed Connections
Item
Part No.
Splicers - Barbed
00217220
Elbows (Barbed 90)
U-Bend (Barbed 180)
Size 2
/16"
1
3
/4"
/"
Stainless Steel
Stainless Steel
/"
Stainless Steel
/"
Stainless Steel
/"
Stainless Steel
/"
Stainless Steel
/"
Stainless Steel
/8"
Stainless Steel
/2"
Stainless Steel
/2"
Stainless Steel
/"
Stainless Steel
/2"
Stainless Steel
1
/4"
/"
1
3 8
00861317
1 4
/"
1 2
00861304
3 8
/"
3 8
00854994
3 8
/"
1 2
00861306
1 2
/"
1 2
00861400
1 4
/"
1 4
00861404
3
/8"
3
00854998
3
/8"
1
00854996
1
/2"
1
00858464
3 8
/"
3 8
00858469
1
/2"
1
Barbed
00207650
1
1
00206294
2
1
00206290
3
00206280
00206279
4
5
1
00207753
6
1 4
00208412
7
1 4
00208413
8
1 4
U-Bend Manifold
00205897
1
3 8
(1/2 Supply Circuit)
00206296
2
1
00206292
3
1
00206281
4
1
00206278
5
1
00207871
6
00208414
00208415
7
8
1
00861500
1 4
00861502
3 8
00205440
1 2
00861506
1 4
00861504
3 8
00205898
3
00205681
1
00205903
1
Tees - Barbed
00218013 Revision C (KAK) 7 August, 2000
Description
Stainless Steel
1 4
No. Ports
Size 3
/2"
00861300
00861302
U-Bend Manifold
(3/8 Supply Circuit)
Size 1
/4" Port
Stainless Steel
/4" Port
Stainless Steel
1
/4" Port
Stainless Steel
/4" Port
1/4" Port
Stainless Steel
Stainless Steel
/ " Port
Stainless Steel
/ " Port
Stainless Steel
/ " Port
Stainless Steel
/ " Port
Stainless Steel
/4" Port
Stainless Steel
/4" Port
Stainless Steel
/4" Port
Stainless Steel
/4" Port
Stainless Steel
1
/4" Port
Stainless Steel
/4" Port
1/4" Port
Stainless Steel
Stainless Steel
/"
1 4
/"
3 8
/"
1 4
/"
3 8
/"
1 2
/"
1 4
/"
3 8
/8"
3
/2"
1
/2"
1
/"
Stainless Steel
/"
/"
1 2
Stainless Steel
/"
/"
3 8
Stainless Steel
/"
/"
1 4
Stainless Steel
/"
/8"
1
Stainless Steel
/2"
/2"
1
Stainless Steel
/2"
3
/4"
Stainless Steel
/8"
Stainless Steel
3
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Barbed Connections
Item
Cross-Barbed
Stem Barbed
(for use with Swivel Nut)
Swivel Nut
(for use with Barbed Stem)
(continued)
Part No.
1
00861202
00212364
00854900
1 4
00854908
1
00854910
3
00854993
1
00855000
1 4
00855004
3
00855017
1
00855007
1
00855013
3 8
Stem with Swivel Nut
(Straight)
Size 1
00861200
1
3
1 2
/8"
/"
/"
1 4
/4"
3
/8"
3
/2"
1
/"
1 4
/8"
3
/2"
1
/4"
1
/"
3 8
Barb Stem
00854950
3 8
00854910
3 8
00205780
1
Stem with Swivel Nut
00854903
1
(Elbows - 90)
00854930
1
00854943
3
00854927
00208215
00211660
1
4
Size 2
/4"
/"
Size 3
/4"
1
3
/8"
/"
3
1 2
1 2
Description
/4"
Stainless Steel
/8"
/"
Stainless Steel
Stainless Steel
/ " FF
Nut Item
Stainless Steel
(for use with
00855000 &
P.N. 00855007)
/8" FF
Nut Item
Stainless Steel
/8" FF
Nut Item
Stainless Steel
(for use with
00855004 &
P.N. 00855013)
/2" FF
Nut Item
Stainless Steel
(for use with
P.N. 00855017)
/ " Barb
Nickel Plated
Brass
(for use with
P.N. 00854900)
/8" Barb
Nickel Plated
Brass
(for use with
P.N. 00854900)
/2" Barb
Nickel Plated
Brass
(for use with
P.N. 00854993)
/4" Barb
Stainless Steel
(for use with
P.N. 00854900)
/ " Barb
Stainless Steel
(for use with
P.N. 00854910)
Swivel Nut
/ " FF
Stainless Steel
/"
Stainless Steel
/8" FF
Stainless Steel
/4" FF
Stainless Steel
/8" FF
Stainless Steel
/4" FF
Stainless Steel
1 4
/"
3 8
/2"
3
/4"
1
/4"
3
/8"
1
3
/8"
3
/8" FF
Stainless Steel
/2"
1/2"
3
/8" FF
1/2" FF
Stainless Steel
Stainless Steel
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Barbed Connections
Item
(continued)
Part No.
Stem-Barbed x Male Flare
(Straight)
Size 1
Size 2
Barbed
Male Flare
00861600
00861601
1
/4"
/"
1
1 4
3 8
00861602
3 8
/"
1 4
00861603
3 8
/"
3 8
Tee Adaptors (Swivel Tees)
Barbed
00862800
1
00862801
1
00862803
3
Male Flare x Barbed Tees
00862700
1 4
Dispensing Valve Adaptors
(Straight)
(for use with Cornelius and Dole)
00854972
1/4"
Barb
Dispensing Valve Adaptors
(Elbow)
(for use with Cornelius and Dole)
00854971
Dispensing Valve Adaptors
(Adapter)
(for use with Cornelius and Dole)
00213681
Wye
00218344
1 4
00218345
3 8
00218346
1 2
00218013 Revision C (KAK) 7 August, 2000
Stainless Steel
Stainless Steel
/ " MF
Stainless Steel
/ " MF
Stainless Steel
Flare
1
/4"
3
/8"
3
/"
1 4
Barbed
/4" FF
1
/8" FF
1
/4"
Stainless Steel
/4"
/8" FF
3
Stainless Steel
/8"
Stainless Steel
/ " MF
1 4
/"
Stainless Steel
/ " “O”
O-ring
Stainless Steel
/8" “O”
Stainless Steel
/2" Barb
Brass
3 8
/4"
3
/4" Garden
Hose
1
3
Description
/4" MF
/ " MF
/4"
1
Size 3
/"
1 4
/"
3 8
/"
1 4
/"
3 8
/"
1 2
/ " Barb
Stainless Steel
/ " Barb
/"
1 2
Stainless Steel
/ " Barb
Stainless Steel
5
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Cable Ties
Item
Cable Ties
Part No.
Size 1
00855700
3 3/4"
Size 2
Size 3
Nylon
00855701
00855703
7 1/2"
14"
Nylon
Nylon
00210718
Description
Mount,
Cable Tie
Calibrating and Cleaning
Item
Backflush Nozzle
Brix Cup
Syrup Separators
Part No.
Size 1
Size 2
00206133
6
Description
Bar Master
Hose
00557496
Dole - SEV
00554531
Flowmatic
00204340
O.J. Multiplex
(for Lever
Activated)
00201306
3.0 to 1.0
Orange Juice
00208971
3.5 to
6.0 to 1.0
Variable
00687805
4.75 and
5.25 to 1.0
McDonald’s
00687802
4.75 and
5.0 to 1.0
General
00687801
5.00 and
5.5 to 1.0
General
00206134
Bar Master Hose
00205840
Cornelius
00557452
Dole - SEV
00557499
Dole -" FFV
00554603
00202160
Flowmatic
Orange Juice
Lever Activated
00206629
Orange Juice
Portion Control
00212610
Volume Cup
Size 3
Lancer
00206809
Orange
Juice
3/1
McDonald’s
00210316
Soda
McDonald’s
00205163
Soda
General
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Check Valves
Item
Part No.
Size 1
Swing
00701325
1
/2" FPT
Single
(Male Pipe Thread x Male Flare)
00701312
1 8
00204864
1 8
(Male Pipe Thread x Male Pipe
00201702
1 4
Thread)
00701322
3 8
00209527
3 8
00701314
1 8
00701313
1 8
00701330
1 8
00209179
1
00208126
1
00862204
1 8
00701304
1
00862202
1 4
Out
/ " MPT
1 4
/ " MPT
3 8
Single
(Male Pipe Thread x Male Flare)
In
/ " MPT
3 8
Brass
/ " MPT
/ " MPT
3 8
Brass
/ " MPT
Brass
(for O.J.)
In
Orifice
/ " MF
0.14
Stainless Steel
/ " MF
0.09
Stainless Steel
/ " MF
0.125
Stainless Steel
/4" MF
0.125
Stainless Steel
(with atomizer)
/4" MF
0.09
Stainless Steel
(with atomizer)
/ " MPT
1 4
/ " MPT
1 4
/ " MPT
1 4
/8" MPT
1
/8" MPT
1
Out
In
1 4
/ " MF
Brass
/4" MPT
Brass
1
Out
In-Line
(Female Pipe x Female Pipe)
Stainless Steel
Out
In-Line
(Male Flare x Female Flare)
Stainless Steel
0.125
/ " MPT
/4" MF
/ " MF
In
/ " FF
1 4
Out
00203901
1 4
00204817
1 2
00218013 Revision C (KAK) 7 August, 2000
Brass
/ " MF
1 4
/ " MPT
Description
Orifice
0.187
Out
In-Line
Size 3
In
/ " MF
/ " MPT
Double
(Male Pipe Thread x Male Flare)
Size 2
/2" FPT
1
Brass
In
/ " FPT
1 4
/ " FPT
/ " FPT
1 2
Brass
/ " FPT
Brass
7
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Check Valves
Item
(continued)
Part No.
Male Pipe Thread x Barb
00206974
Relief/Check Assembly
8
Size 2
Out
In
/8" MPT
1
Vent to Atmosphere
(Backflow Preventer)
Size 1
/4" Barb
1
Out
00204852
3 8
/ " MF
00701324
3 8
00701333
1 4
00205561
Stainless Steel
/ " MF
Stainless Steel
/ " MF
Stainless Steel
/ " MF
Stainless Steel
/4" MPT
Brass
/ " MPT
Brass
1 4
3 8
/ " FF
3 8
/ " MPT
3 8
1
00201102
Stainless Steel
/ " MF
/ " FF
00686978
/4" MPT
/ " MF
1 4
Brass
In
3 8
1 8
Description
/ " MPT
3 8
/ " MF
00210890
Size 3
3
1 4
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Clamps
Item
Part No.
Size 1
Size 2
Size 3
Range/Inch
Each
Package
00859116
00859118
.218-.625
.500-.906
(N/A)
Stainless Steel
Stainless Steel
00859112
.812-1.50
(N/A)
Stainless Steel
Adjustable
Tab - One Ear
Description
Range/Inch
Chudnow
Oetiker
Each
00855108
00855114
.275-.342
.350-.413
0.348
0.505
8.7
10.5
Stainless Steel
Stainless Steel
00208720
.378-.444
0.425
00855110
.398-.464
00855115
.385-.484
00855109
.425-.523
00855116
11.3
Stainless Steel
11.8
Stainless Steel
0.470
12.3
Stainless Steel
0.505
13.3
Stainless Steel
.445-.543
0.525
13.8
Stainless Steel
00855127
.443-.551
0.545
14
Stainless Steel
00855119
.519-.618
0.590
15.7
Stainless Steel
00855112
.570-.669
0.635
17
Stainless Steel
00855128
.653-.779
0.745
19.8
Stainless Steel
00855133
.700-.826
210
21
Stainless Steel
00855117
00855122
.822-.948
1.55-1.67
0.925
4043
24.1
42.5
Stainless Steel
Steel
00218013 Revision C (KAK) 7 August, 2000
9
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Disconnects
Item
Part No.
Size 1
00207506
Gas
1 4
Size 2
00207505
Liquid
1 4
00565206
Gas
1 4
00565207
Liquid
1 4
00206670
Gas
1 4
00206639
Liquid
1 4
00565208
Gas
1
00565209
Liquid
1
00210789
00210790
Size 3
Description
/ " Barb
Coke
/ " Barb
Coke
/ " MF
Coke
/ " MF
Coke
/ " Barb
General
/ " Barb
General
/4" MF
General
/4" MF
General
Jumper
Assembly,
15"
Coca-Cola
Jumper
Assembly,
15"
General
Syrup Filter
Item
10
Part No.
Size 1
00203161
3
00858115
1 4
Size 2
/8" MF
3
/ " MF
3 8
Size 3
Description
/8" MF
Plastic
/ " MF
Adapter
(to connect to
1
/4" line, order 2)
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Flare Connections
Item
Part No.
Unions
Size 1
00857904
1
00857907
00857908
Reducing
00858115
3
Elbows
00861704
Tees (Male Flare)
00858405
1
Tees (Swivel)
00858477
1
00205783
3
00858410
3
3
3
2
1
Gaskets
Nuts
Caps
Size 2
/4" MF
1
1
/4" MF
/ " MF
3
3 8
3 8
/8" FF
1
Size 3
Description
/4" MF
Stainless Steel
/8" MF
/ " MF
Stainless Steel
Stainless Steel
/4" MF
Stainless Steel
/8" MF
3
/4" MF
1
/4" MF
1
/8" MF
3
/8" FF
3
3
/4" MF
1
/4" FF
1
/8" FF
3
/8" MF
3
/8" MF
Brass
/4" MF
Stainless Steel
/4" MF
Stainless Steel
/8" MF
Stainless Steel
/8" MF
Stainless Steel
2
1
00852900
00852902
1
3 8
/4"
/"
Plastic
Plastic
00851803
1 2
/"
Plastic
00856502
00856501
1
/4"
/"
Brass
Brass
00856516
3 8
00856500
1 2
3 8
/"
00856508
1 2
00856528
3 8
/"
Brass
Brass
Long
Brass
/"
Nickel Plated
Brass
/4" FF
Brass
/8" FF
Brass
/2" FF
1/4" FF
Brass
Stainless Steel
/ " FF
Stainless Steel
00854402
1
00854412
3
00213166
00854409
1
00854411
3 8
00218013 Revision C (KAK) 7 August, 2000
Long
/"
11
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Gauges
Item
Part No.
Bottom Mount
Back Mount
Size 1
Size 2
Range-psi
Pipe Size
00683123
00683116
0-30
0-30
00683124
0-100
1 8
00683072
0-100
1 4
00206401
0-120
1 8
00211907
0-150
1 4
00683111
0-160
1 4
Size 3
Description
/8" MPT
/ " MPT
1
1 4
/ " MPT
/ " MPT
/ " MPT
/ " MPT
with follower
/ " MPT
00683107
0-2000
1
00205644
0-60
1
/4" MPT
00683108
0-100
1
00684844
0-160
1
/8" MPT
/8" MPT
/4" MPT
Pipe Connections
Item
Bushings
Nipples
Reducing
Tees
12
Part No.
Size 1
00853929
1
00853909
00853953
00853947
1
00853905
3 8
00853906
1 2
00700717
1 8
00700706
1 4
00700720
3 8
00700705
1
00858507
1
00700716
1
00858107
1
00700723
3
00858406
1 4
00858401
3 8
00858467
1
Size 2
/8" FPT
1
1
/4" FPT
/4" FPT
3/8" FPT
1
Size 3
Description
/4" MPT
Brass
3
/8" MPT
Brass
/2" MPT
1/2" MPT
Brass
Brass
/ " MPT
Brass
/ " MPT
Brass
/ " FPT
3 4
/ " FPT
3 4
/ " MPT
15 16
/ " LG
Brass
/ " MPT
1 3/8" LG
Brass
/ " MPT
1 3/8" LG
Brass
/2" MPT
1 1/2" LG
Brass
/8" MPT
1
/4" FPT
Brass
/8" MPT
1
/4" MPT
Brass
/4" MPT
3
/8" MPT
Brass
/8" MPT
1
/2" MPT
Brass
/ " FPT
1 4
/ " FPT
3 8
/2" FPT
1
/ " FPT
1 4
/ " FPT
3 8
/ " FPT
Brass
/ " FPT
/2" FPT
1
Brass
/2" FPT
Brass
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Compression Fittings
Item
Part No.
Size 1
Size 2
Size 3
Description
Compression Nut with
00205754
3
/4" OD
Brass
Captive Sleeve
00206092
00206093
1
/2" OD
3/8" OD
Brass
Brass
00213421
1 4
/ " OD
Brass
00206079
3
00206078
3
00204749
1
00205683
1
00209511
00210481
00204765
1
00204748
3 8
00205076
3 8
00209405
1 4
00209406
1 4
00206083
3 4
00209410
1
00209970
1
00204751
1
00204782
3
00209408
00209404
00209407
1
Adapter, Straight
Adaptor, Elbow
Tubing
/4" OD
3
/4" OD
1
/2" OD
1
/2" OD
3
1
/2" OD
/2" OD
3/8" OD
1
Brass
/2" MPT
Brass
/2" MPT
Brass
/8" MPT
Brass
1
/4" MPT
Brass
/4" MPT
3/8" MPT
Brass
Brass
/ " MPT
Brass
/ " MPT
Brass
/ " MPT
Brass
/ " MPT
Brass
/ " MPT
Brass
/2" MPT
Brass
/8" MPT
Brass
/4" MPT
Brass
/8" MPT
Brass
/ " OD
1 4
/ " OD
1 8
/ " OD
1 2
/ " OD
1 4
/ " OD
1 2
/2" OD
1
/2" OD
3
/2" OD
1
/8" OD
3
1
/4" OD
3
/8" MPT
Brass
/4" OD
1/4" OD
1
/4" MPT
1/4" MPT
Brass
Brass
/2" ID
Poly
/8" ID
Poly
PE051254
3
RM151315
1
RM151314
3
RM151129
1
00218013 Revision C (KAK) 7 August, 2000
/4" MPT
/4" OD
1
/2" OD
3
/8" OD
1
/4" OD
5
/4" ID
Poly
/32" ID
Nylon
13
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Pressure Reliefs
Item
Toggle Relief Valve
Water Feeder
Part No.
Size 1
Size 2
Size 3
00701332
100
1
/8" MPT
Orange
Brass
00200250
00565307
100
130
1
/4" MPT
1/8" MPT
Orange
Gray
Brass
Stainless Steel
00701338
130
1 8
/ " MPT
Blue
Brass
00701336
130
1 4
/ " MPT
Blue
Brass
00701334
150
1 8
/ " MPT
Yellow
Stainless Steel
00701311
180
1 8
/ " MPT
Red
Stainless Steel
105
1 4
00205241
00217305
00204920
Air Pump Reliefs
/ " MPT
Description
Brass
/ " FTP
Must use
John GuestTee
P.N. 00211796
105
Brass,
Complete
Add-on Kit
1 4
00682451
ITT
Brass
00204028
GAST
Brass
Pump Accessories
Item
Part No.
Size 1
Size 2
Size 3
Description
Clamp
00705000
Stainless Steel
Coupling Key
00702907
Bronze
Strainer Screen
00702925
Stainless Steel
14
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Regulators
Item
Primary CO2 Regulator
Part No.
Size 2
Size 3
Description
Primary CO2
Regulator
00683128
Primary CO2
Regulator
00217392
Guard,
Primary CO2
Regulator
Secondary Air/CO2
Regulator (less Gauges)
Size 1
00204814
Range-psi
Pipe Size
Application
/4" NPT
Diet
General Line
(Low)
/ " NPT
Sugar
General Line
(Med)
/4" NPT
Sugar/OJ
McDonald’s
Units and OJ
(Med)
Pipe Size
Application
/8" NPT
Steamer
Less Gauges
3" Port
/4" FPT
OJ
Less Gauges
3" Port
/ " NPT
N/A
Less Gauges
3" Port
/2" NPT
Water
No Gauge Port
/4" NPT
55 psi
No Gauge Port
Size 2
Size 3
Description
00683118
0-30
00683058
0-100
1 4
00204553
0-100
1
Water
Range-psi
1
00205642
0-30
1
00209162
0-100
1
00686903
10-50
1 4
00683117
10-70
1
00683129
25-75
3
Strainers
Item
Part No.
00205829
Size 1
/ " FPT
3 8
00207633
3 8
00206982
3 8
/ " FPT
Plastic
/ " Barb
Plastic
/8" MF
Plastic
/ " Barb
3 8
3
/8" FF
3
Size 2
Insulation
Item
Part No.
Size 1
00211684
2" x 30'
Size 3
Description
Aluminum
00689700
RM051120
2" x 30'
2" x 1'
Cloth
Cork
00689701
2" x 30'
Foam
00212342
3" x 100
P.V.C.
00203958
Can
Foam Aerosol
RM060030
400"
Vinyl
00218013 Revision C (KAK) 7 August, 2000
15
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Tools
Item
Air Chuck
(to be used with Adaptor)
Part No.
Size 1
Size 2
/4" FPT
Ball Foot
00859018
1
00852504
1
/4" MPT
/4" MF
1
Size 3
Description
Adaptor
Brush, Nozzle
00681901
Carbonation Tester
00251906
Condenser Fin Comb
00681904
Crimper, Tab Clamp
00681815
Tubing Cutter
00211237
Large 6" Cutter
00681824
Small Butterfly
Cutter
16
Flowmatic
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Tools (continued)
Item
Part No.
Size 1
Size 2
Size 3
Description
Potenteometer
00681825
Refractometer
00251903
0-32
Thermometer
00251905
Digital
Wrenches, Nozzle
00206191
Dole
Soda
Plastic
00681809
Flowmatic
Soda
Plastic
00681823
Tap Rite
Beer
Stainless Steel
00218013 Revision C (KAK) 7 August, 2000
17
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Tubing
Item
Part No.
Size 1
Size 2
Size 3
Description
Tubing
ID
OD
Clamp
Description
/32"
1/4"
RM151206
RM157111
0.156
0.265
0.313
0.465
00855108
00855109
Nylon Braid
Nylon Braid
/"
RM152121
0.265
0.469
00855127
Red Braid
/"
RM152115
0.375
0.640
00855112
Red Braid
/"
RM157110
0.380
0.588
00855119
EVA Braid
/"
RM157113
0.515
0.815
00855133
EVA Braid
Tubing
ID
OD
Clamp
Description
/4"
RM151129
0.150
0.250
00856502
Nut
White Nylon
/8"
RM151314
0.251
0.375
00204745
00204767
White Nylon
/"
RM151312
0.231
0.375
00856528
Nut
White Nylon
/2"
RM151315
0.376
0.500
00204744
00204747
White Nylon
Tubing
ID
OD
Clamp
Description
/"
PE500650
0.375
0.563
00855119
Poly
/"
PE051254
0.500
0.686
00855128
Poly
Tubing
ID
OD
Clamp
Description
/8"
RM912111
0.625
0.875
00859112
Black
1"
RM912113
1.000
1.250
00859112
Black
Tubing
ID
OD
Clamp
Description
1
/8"
00207002
0.125
0.219
00207003
Clear,
Thick Wall
/ "
RM151213
0.188
0.438
00855109
Clear,
Thick Wall
/16"
RM151222
0.313
0.438
00855127
Clear,
Thin Wall
1 4
/"
RM151214
0.250
0.500
00855127
Clear,
Thick Wall
/16"
RM151215
0.313
0.563
00855119
Clear,
Thick Wall
/8"
RM151216
0.375
0.625
00855112
Clear,
Thick Wall
/"
RM151224
0.500
0.750
00855133
Clear,
Thick Wall
Braided
5
1 4
3 8
3 8
1 2
Nylon
1
3
3 8
1
Polyethylene
3 8
1 2
Rubber (Drain)
5
Vinyl
3 16
3
5
3
1 2
18
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Valves
Item
Needle
Part No.
Size 1
00670023
1
00670021
00670024
1
Petcock
00670014
1 8
Three-Way Ball
00204743
1
00205572
1
00204742
1 4
Shut-off Ball
/8" MPT
/4" MPT
1/4" MF
Size 2
Size 3
Brass
/4" MF
1/4 SW
Brass
Stainless Steel
(Elbow)
1
/ " MPT
Brass
/4" FPT
Brass
/2" FPT
Brass
/ " FPT
/ " FPT
1 4
Ball Type
00210723
00204789
00209558
00218013 Revision C (KAK) 7 August, 2000
Brass
Replacement
Lever
/ " FPT
3 8
/ " FPT
3 8
Ball Type
00210725
00670025
Description
/4" MPT
1
Brass
Replacement
Lever
/ " MF
3 8
/2" FPT
1
/ " MF
Brass
1 8
/2" FPT
1
Ball Type
Brass
19
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
Valves
(continued)
Item
Part No.
Size 1
Size 2
Switch Over
00670026
Assembly Less Fittings
00671613
1
/4" MF
1
00670010
1
/4"
INVFLX
1
00862201
(use on
old valve)
1
/4"
INVFLX
1
/ " MPT
1 4
Fittings
00862203
(use on
00671613
and
00670010)
20
Size 3
/4" FPT
1 8
Description
Aluminum
1
/4" MPT
1
/4" MF
Brass
/4" MPT
1
/4"
INVFLX
Brass
/4" MF
Brass
/ " MF
Brass
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
John Guest Fittings
Item
Union Elbows (Elbow)
Part No.
Size 1
Size 2
Size 3
Description
00111006
1
/4" OD
1
/4" OD
Tube
00111007
00209741
5
/16" OD
3/8" OD
5
/16" OD
3/8" OD
Tube
Tube
To be used when connecting thin wall poly tubing to thin wall poly tubing.
Reducing Elbow
00111016
3 8
/ " OD
1 4
00213885
3 8
/ " OD
5 16"
/ " OD
Tube
/ OD
Tube
00214918
5 16
/ " OD
1 2
/ " OD
Tube
To be used when connecting thin wall poly tubing to thin wall poly tubing.
PlasticTubing to Stainless
00208800
3 8
Steel Tubing
00208799
3 8
/ " OD
5 16
/ "
Stainless Steel
/ " OD
3 8
/"
Stainless Steel
To be used when connecting thin wall poly tubing to Stainless Steeltubing.
Plug in Elbow
/8" OD
00214099
3
00211678
1 2
/ " OD
/8" OD
Stem
1/2 OD
Stem
3
To be used when connecting thin wall poly tubing to another John Guest Fitting.
Union Connectors
K0000681
00209190
1
/4" OD
/ " OD
1
3 8
3 8
/4" OD
/ " OD
00111022
3 16
/ " OD
3 8
00210126
1 2
/ " OD
1 2"
/ " OD
/ OD
To be used when connecting thin wall poly tubing to thin wall poly tubing.
00218013 Revision C (KAK) 7 August, 2000
21
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
John Guest Fittings
Item
Reducing Union
(continued)
Part No.
Size 1
00111013
3
00209397
00210126
Size 2
/8" OD
5
1
/2" OD
/ " OD
3
1 2
1 2
Size 3
Description
/16" OD
/8" OD
/ " OD
To be used when connecting thin wall poly tubing to thin wall polytubing.
PlasticUnion to
00208796
3 8
Stainless SteelTubing
00209334
3 8
/ " OD
5 16
/ " OD
3 8
/ " OD
Stainless Steel
/ " OD
Stainless Steel
To be used when connecting thin wall poly tubing to Stainless Steeltubing.
Union Tee
00111010
1
00208791
3
00210862
1
/4" OD
1
/8" OD
3
/4" OD
1
/8" OD
3
/2" OD
1
/4" OD
/2" OD
1
/8" OD
/2" OD
To be used when teeing thin wall poly tubing only.
2-Way Divider
00111008
3
00209346
3
/8" OD
2 5/16" OD
/8" OD
2 3/8" OD
To be used when dividing thin wall poly tubing only.
Male Connector Adaptor
00208801
1 8
00111002
1
00111009
1
00209317
1
00112023
5
00209328
1
00209946
/ " MPT
5 32
/8" MPT
1
/8" MPT
5
/8" MPT
3
/16" MF
3
/4" MPT
3
/8" MF
3
3
/ " OD
/4" OD
/16" OD
/8" OD
/8" OD
/8" OD
/8" OD
To be used when connecting thin wall poly tubing to a female pipe thread fitting.
22
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
John Guest Fittings
Item
(continued)
Part No.
Size 1
U-bends
00216816
Stem Adaptor
00111001
1
00111003
1
00111005
1
00111011
1
Size 2
1
/2" OD
1
/4" MPT
1
/8" MPT
1
/8" MPT
5
/4" MPT
1
Size 3
/2" OD
Description
1" Centers
/4" OD
/4" OD
/16" OD
/4" OD
To be used when connecting a John Guest Fitting to a female pipe thread fitting.
Collet Covers
00208804
5
00208803
00209398
3
/32" OD
/8" OD
/ " OD
1 2
Used to hold collet and tube in place.
Collets
00210798
5
/32" OD
Tube Retaining
00210799
00210800
3
/16" OD
1/4" OD
Tube Retaining
Tube Retaining
00210801
5 16
/ " OD
Tube Retaining
00210802
3 8
/ " OD
Tube Retaining
00210803
1 2
/ " OD
Tube Retaining
/4" ID
Tube
Secures tube fitting.
Tube Support
00210255
1
Tubing stiffener used to prevent tubing deflection at fitting which would cause leak.
00218013 Revision C (KAK) 7 August, 2000
23
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
John Guest Fittings
Item
Tubing Cartridge
(continued)
Part No.
00209416
Size 1
Size 2
Size 3
/16" OD
Description
Tubing
5
Secures Stainless Steeltube to fitting.
Tube to Hose Stem Adapter
00210750
Plastic
3 8
/ " Barb
1 2
00209947
Plastic
3
00210749
Plastic
1 2
00210752
Plastic
00210638
Plastic
1
/8" Barb
3
/ " Barb
/4" Barb
3
/ " Barb
1 2
/ " OD
Stem
00217015
Stainless Steel
/8" OD
Stem
00112042
Stainless Steel
3 8
/ " OD
Stem
00217013
Stainless Steel
/8" OD
Stem
1/2" OD
Stem
00112041
Stainless Steel
00217014
Stainless Steel
Used to connect a John Guest Fitting to thick wall poly tubing or braided tubing.
Plug
00209383
3
/8" OD
Stem
00111023
3
/16" OD
Stem
Used to plug a John Guest Fitting.
Flow Bend Tube Clip
00209333
/ " OD
3 8
1 1/4" R
Tube Flow
Bend
Used to reinforce tubing and make sharp bend without crimping.
O-ring
00210792
5
00210793
3
/32"
00210794
1
00210795
00210796
5
00210797
1 2
/16"
/4"
/16"
3/8"
/"
Correspond to John Guest Fitting size.
24
00218013 Revision C (KAK) 7 August, 2000
Multiplex Company, Inc.
Illustrated Fittings and Hardware Catalog
John Guest Fittings
(continued)
How to use john guest fittings
Before inserting tubing into John Guest Fitting, be sure end of tubing is cleanly cut at a 90° angle.
Right
Wrong
2. Insert tubing into John Guest Fitting. Push tubing firmly through fitting until it rests against a
tube stop in the fittings main body housing. The
tubing is now automatically locked into John
Guest Fitting.
3. To release tubing from John guest Fitting, push
in collet located on John Guest Fitting (if necessary, remove collet cover).
Wrong
Right
Tubing
Collet
Collet Cover
Tubing
Collet
Collet Cover
For stainless steel
Metal tubing must be cut square and have a smooth
burr-free end.
1. Turn the LOCKING CAP to show approximately
1/8" (3 mm) of thread at “X”.
2. Push fitting onto the STAINLESS STEELensuring
that it is fully up against the tube stop.
3. Tighten the LOCKING CAP half a turn. If the fitting is not secure, tighten a little further.
4. Make sure fitting is secure.
5. Push Plastictubing into other and of fitting insuring that it is fully up against the tube stop.
To release the fitting from the Stainless Steeltube,
simply unscrew the LOCKING CAP three quarters of
a turn, depressing the collet head as with a
conventional John Guest Fitting.
Note: If a fitting leaks as the SUPER SEAL end,
simply tighten the LOCKING CAP until leaking stops.
By doing this you increase the compression sealing
of the O-rings on the steel tail.
00218013 Revision C (KAK) 7 August, 2000
25
250 Old Ballwin Road w St. Louis, Missouri 63021-4800
Tel: 636.256.7777 w Fax: 636.527.4313
info@multiplex-beverage.com w www.multiplex-beverage.com
In accordance with our policy of continuous product development and improvement,
this information is subject to change at any time without notice.
00218013 Revision B (GSW/KAZ) 05/03/99
2100 Future Drive, Sellersburg, IN 47172
Tel: 812 246 7000 Fax:: 812 246 9922
info@multiplex-beverage.com w www.multiplex-beverage.com
In accordance with our policy of continuous product development and
improvement, this information is subject to change at any time without notice.
00218009 Revision D July 2002