ATC MPC3 Manual

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Installation, Operation & Service Manual
MPC3 / MPC10 / MPC18 / MPD3
DOCUMENT DETAILS
Date
28/OCT/2020
Author(s)
MJH
Page
1 / 5
Revision
4
Opening section MPC3, 10, 18 & MPD3 1

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Installation, Operation & Service Manual
MPC3 / MPC10 / MPC18 / MPD3
DOCUMENT DETAILS
Date
28/OCT/2020
Author(s)
MJH
Page
2 / 5
Revision
4
CHANGE LOG
Date
Revision
Page ref
Change
5/DEC/2019
1
-
First release.
27/JAN/2020
2
Product Specification
Pump curve graph edited.
Annex L
Inclusion of RS485 ModBUS Protocol guide
28/AUG/2020
3
Annex C
Correction to standard fittings supply
28/OCT/2020
4
Product Specification
Clarification of QR size
Opening section MPC3, 10, 18 & MPD3 2

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Installation, Operation & Service Manual
MPC3 / MPC10 / MPC18 / MPD3
DOCUMENT DETAILS
Date
28/OCT/2020
Author(s)
MJH
Page
3 / 5
Revision
4
PRODUCT SPECIFICATIONS
Attribute
Unit
Value
Dimensions (W*D*H)
mm
180*435*380
inch
7.1*17.1*15
Weight
kg
20
lbs.
44.1
Heat transfer fluid
volume
mL
650
USGal
0.172
Cooling capacity
(Tambient +20°C / +68°F)
(Tsetpoint +20°C / +68°F)
W
500
BTU/h
1706
RT
0.142
Temp. adjustment
±°C
0.1
Settable temp. range
°C
+4 to +35
Optional temp. range
°C
-10 to +65
Power supply
requirement
VAC
100-240
Hz
50/60
A
1@240VAC
2@115VAC
Sound pressure level
dBa
35-64
Controller screen size
inch
4.3” diagonal
Auto-diagnostic
functions
PID, compressor and fan
percentage utilization.
Fridge system high pressure
value.
Compressor error states.
Export system log via USB.
Fluid fittings (standard)
Pushfit 12mm
Fluid fittings (option)
Valved QR 9.5mm (3/8”)
Low fluid level alarm
Visual, 3 level
Controller screen
Resistive type, glove-friendly,
pen-friendly.
Tool-less access
No
Overtemperature
protection
Hardware limited
Software settable
Compressor overload
protection
Via PCB function
Overcurrent protection
Fused, 2* T6.3A H250V
Rated duty cycle
Continuous
Compatible heat
transfer fluids
DI water, propylene glycol
mixes, Hexid A4 & A6
Opening section MPC3, 10, 18 & MPD3 3

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Installation, Operation & Service Manual
MPC3 / MPC10 / MPC18 / MPD3
DOCUMENT DETAILS
Date
28/OCT/2020
Author(s)
MJH
Page
4 / 5
Revision
4
SAFETY NOTICES
For your safety, we draw your attention to the following warning and caution marks throughout the manual; the
safe operation of an ATC chiller always remains the responsibility of the operator. This equipment is intended to
be used as a liquid temperature conditioning device –it requires no external pump, nor any further manipulation
of temperature. If the equipment is used in a manner not specified by the manufacturer, the protection provided by
the equipment may be impaired.
Caution; Failure to comply with a caution will invalidate product warranty and absolve ATC from any
liability, howsoever caused, and could result in permanent damage to equipment.
Caution; Filling/topping up of the tank should only be undertaken with the unit switched off, to prevent
back-filling of the fluid.
Caution; The high integrity refrigeration system contains no user-serviceable parts. Repair and service
requires specialized knowledge and tools to be provided by ATC or its local agent. Any unauthorized
tampering with the refrigeration system automatically invalidates warranty.
Warning; Very cold surfaces and gases, lower than -20°C (-40°F). Severe frostbite hazard.
Warning; Opening the refrigeration system may expose the operator to toxic and corrosive compounds
(HFCs). Take protective measures including suitable eye protection.
Warning; Gases may exceed 15 barg (220psig) during operation.
Warning; Refrigerant is class A1. It does not support combustion but is oxygen depleting. Refrigerant
charge in the Mini is 360g (12.7oz) of R134a.
Warning; Water and electricity are in close proximity. Always ensure the unit is isolated before service.
The Mini is protected from overcurrent by mains fusing. Never bypass this component.
Warning; Failure to comply with a ‘warning’ may result in personal injury or death. ATC does not accept
any liability for injury caused through use of this equipment.
Warning; After switching off, the fan blades slow to a stop. Do not open until the fan has stopped
rotating.
Affixed to the chiller’s fan, this symbol printed on yellow background advises of the possible damage to
fingers or other extremities from rotating fan blades. Allow blades to stop before service begins.
Opening section MPC3, 10, 18 & MPD3 4

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Installation, Operation & Service Manual
MPC3 / MPC10 / MPC18 / MPD3
DOCUMENT DETAILS
Date
28/OCT/2020
Author(s)
MJH
Page
5 / 5
Revision
4
INCLUDED ANNEXES
Specific technical product information is provided in the following series of annexes.
Annex A-1 191122 Unpacking - Weighing over 18kg
Annex B-1 191122 Mini & EcoMini site and environmental requirements
Annex C-1 200901 Installation - Mini & EcoMini
Annex D-1 191122 Mini fill procedure
Annex E-1 200707 XTD controller XTD043RB-K620G&F (Mini at SW v39.4)
Annex F-1 191129 Pres & flow in Mini with centrif pump
Annex G-1 191129 Mini, generic initial troubleshooting
Annex H-1 191121 Generic periodic maintenance for end users
Annex I-1 191129 Generic maintenance for technicians
Annex J-1 200901 EcoMini & Mini series EU DoC
Annex J-5 200706 Conflict Minerals compliance statement
Annex J-7 200715 REACH compliance statement
Annex J-8 200827 POPs compliance statement
Annex K-1 200623 Standard warranty terms of ATC
Annex L-11M 190503 SA00011M RS485 ModBUS RTU for Mini
Annex M-1 200828 Recommended spares, Mini & EcoMini
Annex R-1 170621 SDS for refrigerant HFC-R134a
Annex R-3 200203 SDS Hexid A4 v6.3
Opening section MPC3, 10, 18 & MPD3 5

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Unpacking
Annex A-1
DOCUMENT DETAILS
Date
22/NOV/2019
Author(s)
MJH / LW
Page
1 / 1
Revision
1
UNPACKING
Please check that both the packaging and the unit are undamaged. If there is any doubt, it is vital that you inform
both ATC and the carrier. There are no hidden shipping bolts or other fixings. You should inspect the packaging
for signs of transit damage before signing for the unit, and if possible, unpack the unit before signing. Once you
have signed for the goods, ATC cannot be held responsible for any transit damage subsequently found.
As the unit is >18kg, ATC must recommend that 2 persons are used to lift by hand, or a crane. Remove the unit
from its original packaging and ensure that there is no packaging left around the cooling ducts. There is no
internal product packaging that requires the chiller to be opened.
Please retain all packaging in the unlikely event that the chiller needs to be returned to our local
representatives.
Annex A-1 191122 Unpacking - Weighing over 18kg 6

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Site & Environmental Requirements
Annex B-1
DOCUMENT DETAILS
Date
November 2019
Compiled by
MJH
Revision
1
SITE & ENVIRONMENTAL REQUIREMENTS
a) Hard, level surface –Feet on the Mini provide a degree of friction on most work surfaces to prevent sliding.
A level surface is important for ensuring proper filling and allowing air to escape.
b) Clean, dust-free environment –air-cooled chillers move large volumes of air, and large amounts of air-
borne contamination will result in fouling of the condenser, reducing the capacity of the unit and in extreme
cases causing a system shut-down.
c) Non-condensing ambient –+5°C to +40°C (+39°F to +104°F). Capacity is lost above +30°C (+86°F).
d) Humidity - 80% for ambient temperatures up to +31°C (+88°F), decreasing linearly to 50% relative humidity
at +40°C (+104°F) ambient temperature.
e) Electrical supply –the Mini comes with a Switch Mode Power Supply capable of accepting;
a. Voltage fluctuations of ±10% of the nominal voltage.
b. Frequency of 47Hz to 63Hz inclusive.
c. Maximum current draw of 5.8A@100VAC; mains fusing is rated 6.3A, accessible from rear.
i. See product rating label for fuse specification.
ii. Two modes of supply are acceptable; L1 / N / E or L1 / L2 / E
iii. The inlet module itself is rated 10A 250V.
iv. Protective earth must be provided by user at IEC type C14 appliance inlet.
f) Clearance –left and right of the unit require clearance of ≥300mm (≥11.8”). Care must be taken to prevent
the recirculation of rejected hot air, back into the condenser. This will result in damage if repeated. Ensure
there is sufficient room at the rear of the product to remove the power cable without obstruction.
g) Plumbing –tubing, piping or hose must be clean and compatible with the fluid to be used. The chiller is
compatible with deionized water and water-glycol mixtures such as Hexid fluid.
h) Indoor use only –altitude up to 2000m.
i) Installation category –transient overvoltage category II; Pollution degree 2. Temporary overvoltages
occurring on mains supply are acceptable within limits defined in the aforementioned categories.
Caution; Always use ATC recommended fluids in your chiller –many other anti-freeze mixtures have the
potential to corrode your application and to damage seals in the chiller.
Annex B-1 191122 Mini & EcoMini site and environmental requirements 7

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Installation
Annex C-1
DOCUMENT DETAILS
Date
28/AUG/2020
Author(s)
MJH/AMI
Page
1 / 1
Revision
1
INSTALLATION
Having ensured that your installation meets all site requirements, it is best practice that the fluid lines between
your application and the chiller have the following characteristics;
a) Short in length –this reduces friction-based pressure drop and addition ambient heat load
b) Large diameter bore –at least 8mm (5/16”).
c) Free from 90° bends –to limit the effects of water hammer. If this cannot be avoided, sharp changes of
direction should be minimized so far as possible. Doing this correctly can yield higher pump performance
and extend time between maintenance intervals. It can also reduce electrical energy consumption.
d) Clean –If your installation is to existing pipe work, it is good practice to flush the system with either a
commercially available central heating cleaner or 5% acetic acid solution. The system should be flushed
clean with tap water to remove all traces of cleaner prior to filling the system. Failing this, it is
recommended to use a domestic bleach in solution with tap water, diluted to the point where the bleach
can longer be smelled by a human.
e) Opaque, ideally black –to inhibit light passing through the tube and algae building up. Alternatively, solid
ABS or copper pipe can be used.
Caution; Never use transparent tubing. UV light will pass through, prompting growth of organic
contamination.
The Mini and EcoMini are supplied with quick release fittings by default either of the CPC or push fit variety. The
former of these have built-in valves to prevent loss of fluid when disconnecting but other types may not. The
mating halves of these connectors are available in a variety of fitting types, i.e. barb, quick release, compression.
Sealing guidelines should be followed for each specific type of fitting.
Ensure that the system is correctly connected, with the chiller outlet connected to the application inlet, and
application outlet connected to chiller inlet. Check all joints are tight and leak free.
Where this product is incorporated into other equipment, it is the responsibility of the assembler to ensure safety.
Caution; Do not replace detachable mains cords with inadequately rated cords. Contact ATC for
appropriately rated products.
Preventing Backfilling –In situations where the chiller is situated physically lower than the application being
cooled it is possible that upon stopping the pump the effect of gravity on the process fluid can cause it to leave
the application.
In this scenario, the fluid falls back into the chiller, placing pressure from the water column upon all chiller water
circuit faces. The weakest point in terms of sealing is the tank lid, and this is typically where fluid will escape the
unit, overflowing into the chiller.
For this reason, it’s always a good idea to situate the chiller higher than the application so that when the pump is
turned off, the tank is the highest point in the system and the liquid will flood into the application which should be
sealed.
If this is not possible, a non-return solenoid valve kit can be installed as an optional standard assembly. Please
raise any questions with the sales team on [email protected].
Annex C-1 200901 Installation - Mini & EcoMini 8

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Fluid Handling Procedures
Annex D-1
DOCUMENT DETAILS
Date
November 2019
Compiled by
MJH
Revision
1
FILLING PROCEDURE
The Mini chiller has a different fill procedure to ATC’s other products. Please read the entire passage before
starting and familiarize yourself with the process.
a) Connect the chiller to the electrical supply and switch on at the rear rocker switch.
i) The controller should begin to load and leave you on the splash screen with ATC logo as pictured
below. Your serial number and software version may differ.
b) Check all application valves are open, including solenoid valves and variable position valves.
i) The chiller will require an open water circuit to pump into.
ii) Any obstructions can increase the time, or entirely prevent the bleeding of air from the system.
c) Remove the cap from the tank lid on the top of the chiller.
i) Fill the tank to leave 10-20mm (0.4-0.8”) of air between water line and where the lid seals.
d) Turn your attention to the screen on the front of the chiller. Above the settings ‘gear’ icon, you will see
a pump icon.
i) Holding this icon will run the pump, and it will ignore any interlock provided by the level switches.
ii) Hold the button until the water line drops to just above the outlet port, then release.
Caution; Do not run the pump dry. Do not deadhead the pump.
e) Repeat steps c) i) and d) until the level no longer drops when the pump is run.
f) Start the chiller by holding the green process start button in the top right.
i) Leave the cap off the tank for >30mins to allow air to escape.
ii) Whilst running, the tank illustration on the user interface ought to stay green and full.
g) Check the application and tubing for signs of leaks whilst the chiller is running.
i) Replace the tank lid when satisfied the system is full and bled of air.
Annex D-1 191122 Fluid handling procedures - Mini 9

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Controller Operation
Annex E-1
DOCUMENT DETAILS
Date
5/DEC/2019
Author(s)
MJH
Page
1 / 9
Revision
1
XTD043RB-K620G / XTD043RB-K620F (SOFTWARE VERSION 39.4, MINI PROJECT)
Splash Screen
Upon first powering on, the chiller will arrive at this page after a
software loading sequence is complete.
1. Process-start will start fridge and water circuit.
2. Pump priming button runs pump without process starting.
3. Access to settings menu.
4. Service pack refers to software version installed.
5. Serial number is added by ATC during production.
Process View
1. Process stop.
2. Set outlet temperature.
3. Carousel scroll.
4. Settings menu.
5. Actual outlet temperature.
6. System overall utilization.
7. Compressor utilization.
8. High side fridge pressure.
9. Condensing temperature.
10. Fan speed utilization.
11. Fan speed mode.
12. Bypass valve status.
13.Tank level status.
Simple View
1. Actual outlet temperature.
2. Setpoint temperature.
3. Tank level status.
Tolerance Plot
1. Adjusts the plotting resolution to aid visibility.
2. Relative to point 1, the current set resolution.
3. Adjusts the length of time over which data is plotted.
4. Relative to point 3, the current timeframe.
5. Current setpoint, a fixed horizontal line, i.e. a target.
6. A red line will be plot continuously about the black set line.
7. The actual temperature being plotted.
8. Based on the tolerance set at point 2, the upper tolerance.
9. Based on the tolerance set at point 2, the lower tolerance.
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Annex E-1 200707 XTD controller XTD043RB-K620G&F (Mini at SW v39.4) 10

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Controller Operation
Annex E-1
DOCUMENT DETAILS
Date
5/DEC/2019
Author(s)
MJH
Page
2 / 9
Revision
1
Program Mode
1. USB program loading and software management menu.
2. Create new or load existing program.
3. Start loaded program.
4. Scroll right through scheduled setpoints.
5. Scroll left through scheduled setpoints.
6. Adjusts the scale of the X axis to aid visibility of program.
7. Y axis shows the range of setpoint values in program.
8. Vertical line shows programmed change to setpoint temp.
9. Name of loaded program.
10. X axis shows time scale of entire program.
11. Move through carousel onto ‘Engineering View’.
Manage Programs (generate, load from NAND and modify)
Menu accessible via button ‘2’ under ‘Program Mode’.
1. Accept changes and revert to Program Mode above.
2. Save changes to local NAND memory.
3. Back button reverts to Program Mode above.
4. Takes you to ‘Existing Programs’ menu.
5. Name of loaded program in the course of being edited.
6. When line added, tapping the arrows first selects the line,
then allows editing of line time and setpoint temperature.
7. Delete the selected line.
8. Move up to earlier lines where program lines exceed 6.
9. Add a new line. Lines automatically move up if deleted.
10. Move down to later lines where program lines exceed 6.
Save screen
Appears when button ‘2’ from ‘Manage Programs’ is used.
1. Back out to ‘Manage Program’ menu.
Existing Programs in NAND Memory
Menu accessible via button ‘4’ under ‘Manage Programs’.
1. Load highlighted program (reverts to ‘Manage Programs’).
2. Copy highlighted program to new line.
3. Return to ‘Manage Programs’.
4. Delete highlighted program (warning; no confirmation!)
5. Selected program is highlighted grey.
6. When ≥2 programs are in the list, use up arrow to select.
7. When ≥2 programs are in the list, use down arrow to select.
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Annex E-1 200707 XTD controller XTD043RB-K620G&F (Mini at SW v39.4) 11

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Controller Operation
Annex E-1
DOCUMENT DETAILS
Date
5/DEC/2019
Author(s)
MJH
Page
3 / 9
Revision
1
Software Management (incl. logs and programs)
1. Error log upload to USB device. Sends a CSV file.
2. Upload programs created on MS Excel.
To generate a CSV template, upload a ‘dummy’ program.
3. Download programs created on-screen into CSV file.
4. Install software update (see Reset Options below).
5. A USB stick is available both uploading and downloading.
6. CSV programs available to download into NAND memory.
7. Software update recognized on USB device.
Reset Options
Menu accessible via button ‘4’ under ‘Software Management’.
1. EEPROM resets all machine settings back to default.
Some software updates will require this to be ticked.
2. EMMC reset deletes all internal memory and log files.
3. Cancel software update.
4. Start update process.
Engineering View
1. When illuminated red, tap to move to error view (below).
2. Scroll up through available parameters.
3. Scroll down through available parameters.
Error View
1. Clear error lists.
2. Scroll up through error list.
3. Return to ‘Engineering View’.
4. Scroll down through error list.
Error Codes
1. Comp. overload/locking.
2. Comp. disconnected.
3. Comp. overcurrent.
4. Comp. abnormal VDC.
5. Comp. PCB overheat.
6. PV PT100 disconnected.
7. Modbus data error.
8. Temp. high level limit.
9. Fluid tank empty.
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Annex E-1 200707 XTD controller XTD043RB-K620G&F (Mini at SW v39.4) 12

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Controller Operation
Annex E-1
DOCUMENT DETAILS
Date
5/DEC/2019
Author(s)
MJH
Page
4 / 9
Revision
1
Maintenance Prompt View
1. Move up the parameter list.
2. Move down the parameter list.
3. Date is editable, tap to adjust next check date. When date is
reached, text becomes red.
4. Exclamation mark is shown for overdue. Tap to confirm
check made.
5. Tick mark is shown by black text for maintenance not due.
Passcode Entry
1. Pressing the settings gear icon shows the passcode screen.
Enter 4159 to enter factory settings.
Enter 1234 to enter user settings.
2. Passcode appears in box above keyboard.
3. Select to enter passcode.
Factory Settings (1)
Screen available after successfully entering the passcode.
1. Down arrow scrolls through factory settings pages.
2. Pressing the settings icon again takes you to user settings.
User settings are a cut-back version of factory settings.
3. Return to main carousel.
4. Serial number, commissioning date, default power on, etc.
5. Temperature and pressure display units, etc.
6. Edit the text parameters of various maintenance prompts.
7. Edit temperature and pressure limits before error log.
8. Where capable, modify MODBUS settings.
Factory Settings (2)
Scroll down from ‘Factory Settings’ (1)
Further to ‘Passcode Entry’ above;
1. To access higher level settings, the user settings PIN can
be edited while access has been gained to ‘Factory Settings’.
2. Where standby mode is enabled, this PIN appears to
prevent the user from starting process without PIN entry first.
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Annex E-1 200707 XTD controller XTD043RB-K620G&F (Mini at SW v39.4) 13

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Controller Operation
Annex E-1
DOCUMENT DETAILS
Date
5/DEC/2019
Author(s)
MJH
Page
5 / 9
Revision
1
Factory Settings (3)
Scroll down from ‘Factory Settings’ (2)
1. Modify stop, minimum and maximum compressor speed.
2. Modify fan behavior, speed offset, min and max speed.
3. Modify temperature probe offset.
4. Modify default, minimum and maximum setpoint.
5. Modify input hardware termination positions.
6. Modify output hardware termination positions.
Factory Settings (4)
Scroll down from ‘Factory Settings’ (3)
1. Adjust brightness and screen orientation.
2. View and apply color themes.
3. Adjust real time clock settings.
4. Adjust naming conventions for log and scheduled programs.
5. Adjust controller (and system) behavior.
6. Adjust controller (and system) heating behavior.
Factory Settings (5)
Scroll down from ‘Factory Settings’ (4)
1. Set a new factory PIN for lower level settings access.
2. Reset password if EEPROM reset requests it.
3. Allows adjustment of factory standby PIN.
4. Enable standby mode, (password protected process start).
Machine Information
1. Return to ‘Factory Settings’ main menu.
2. Serial number is added here by factory electronically.
3. Display version, not editable.
4. Commissioning date (factory final test run date).
5. Firmware version, not editable.
6. Select a carousel screen to display upon process start.
7. Software version, not editable.
8. Exit back to main carousel.
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Annex E-1 200707 XTD controller XTD043RB-K620G&F (Mini at SW v39.4) 14

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Controller Operation
Annex E-1
DOCUMENT DETAILS
Date
5/DEC/2019
Author(s)
MJH
Page
6 / 9
Revision
1
Units of Measure
1. Return to ‘Factory Settings’ main menu.
2. Select Celsius, Kelvin or Fahrenheit for setpoint unit.
3. Select psi or bar for refrigeration condensing pressure.
4. Select Celsius, Kelvin or Fahrenheit for liquid outlet temp.
5. Select Celsius, Kelvin or Fahrenheit for condensing temp.
6. Select whether to display PID with or with a % symbol.
Maintenance Parameters
1. Return to ‘Factory Settings’ main menu.
2. Rename, delete or add new text for reminders.
Limits & Alarms
1. Return to ‘Factory Settings’ main menu.
2. Error log entered when pressure drops lower than setting.
3. Error log entered when pressure runs higher than setting.
4. Error log entered when temperature runs over setting.
Where values are exceeded, a pop-up note appears.
RS485 MODBUS
Only XTD043RB-K620F model can run MODBUS.
1. Return to ‘Factory Settings’ main menu.
2. (Not pictured); single option to enable or disable MODBUS.
3. Set unique address in a multi-system RS485 network.
4. Select start address.
5. Direction of data, select read-write, or read-only.
6. Data transmission rate.
7. Select odd or even.
8. Select half or full; standard ATC wiring is 3-wire half duplex.
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Annex E-1 200707 XTD controller XTD043RB-K620G&F (Mini at SW v39.4) 15

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Controller Operation
Annex E-1
DOCUMENT DETAILS
Date
5/DEC/2019
Author(s)
MJH
Page
7 / 9
Revision
1
Compressor Settings
This variable speed compressor has been carefully set up by
ATC to work within manufacturer’s limits.
1. Return to ‘Factory Settings’ main menu.
2. Compressor minimum frequency (40Hz is 20% duty).
3. Compressor maximum frequency (200Hz is 100% duty).
4. When a compressor error occurs, the compressor times out
for 60s. This is enforced by compressor control PCB.
5. Frequency issued to instruct the compressor to stop.
Fan Settings
Fan performance is closely linked to overall refrigeration
system health. ATC caution users against making changes.
1. Return to ‘Factory Settings’ main menu.
2. To avoid stalling, the minimum duty default is 17%.
3. To ensure proportional control, the max duty is 45%.
4. Speed offset by fixed value above algorithm requirement.
5. Pulsed control frequency. Set to suit specific fan.
6. Switch between manual and automatic control.
7. Inrush current prevention, if compressor starts at same time.
Calibration (Temperature & Pressure)
In the unlikely event your chiller requires a replacement PT100
or pressure sensor, the previous calibration value(s) may no
longer be valid.
1. Return to ‘Factory Settings’ main menu.
2. Used by the factory to set difference between actual outlet
temperature and that seen by the PT100 probe, in order to
display real temperature.
3. Allows the factory to set pressure offset between
measurement taken from calibrated gauge and that seen by
pressure transducer.
Setpoint Defaults
1. Return to ‘Factory Settings’ main menu.
2. If unit is switched off and on again, with ‘Enable Default’ (2)
active, the default setpoint overrides the last manual setpoint.
3. After power cycling, a default setpoint can be enforced to
prevent chiller moving back to a previous unwanted setpoint.
4. Minimum settable temperature by user.
5. If power is cut when chiller is running (past ‘process start’),
the restoration of power reverts the operating state to that
before the cut.
6. Maximum settable temperature by user.
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Annex E-1 200707 XTD controller XTD043RB-K620G&F (Mini at SW v39.4) 16

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Controller Operation
Annex E-1
DOCUMENT DETAILS
Date
5/DEC/2019
Author(s)
MJH
Page
8 / 9
Revision
1
Display Settings
1. Return to ‘Factory Settings’ main menu.
2. Rotation of screen through 180 degrees to improve viewing
angle if unit is to be situated above or below eyeline.
3. Set display backlight strength.
Color Theme
1. Return to ‘Factory Settings’ main menu.
2. Scroll through color options.
3. Tap to select color choice.
Date & Time, Real Time Clock
Incorrect setting of this clock will result in log entries and
maintenance prompts referencing date and time incorrectly.
1. Return to ‘Factory Settings’ main menu.
2. Tap each individual setting to make text appear red.
Tap the red arrows either side to adjust value.
Tap the red value to confirm entry.
File Paths
1. Return to ‘Factory Settings’ main menu.
2. For programs created on the controller, a prefix can be
edited to personalize the files.
3. Log files generated can have customized prefix.
It is not recommended to adjust any other values.
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Annex E-1 200707 XTD controller XTD043RB-K620G&F (Mini at SW v39.4) 17

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Controller Operation
Annex E-1
DOCUMENT DETAILS
Date
5/DEC/2019
Author(s)
MJH
Page
9 / 9
Revision
1
PID Cooling Settings (1)
1. Return to ‘Factory Settings’ main menu.
2. Scroll down for more settings.
3. Proportional term adjustment for cooling behavior.
4. Integral term adjustment for cooling behavior.
5. Derivative term adjustment for cooling behavior.
6. Cannot adjust –this is time for a single PID loop.
7. Time elapsed until cooling PID changes to heating mode.
8. Delay counter (7) starts after overshoot exceeds this value.
PID Cooling Settings (2)
1. Return to ‘Factory Settings’ main menu.
2. Scroll up for more settings.
3. Allow heating mode to function via the solenoid valve.
4. ‘Yes’ enables compressor to start running immediately.
5. Integral term removed from PID calculation inside set range.
6. Outside this limit, P-band control is ‘on-off’, i.e. 0 or 100%.
PID Heating Settings (1)
1. Return to ‘Factory Settings’ main menu.
2. Scroll down for more settings.
3. Proportional term adjustment for heating behavior.
4. Integral term adjustment for heating behavior.
5. Derivative term adjustment for heating behavior.
6. Cannot adjust –this is time for a single PID loop.
7. Time elapsed until heating PID changes to cooling mode.
8. Delay counter (7) starts after overshoot exceeds this value.
PID Heating Settings (2)
1. Return to ‘Factory Settings’ main menu.
2. Scroll up for more settings.
3. Allow cooling mode to function via solenoid valve.
4. ‘Yes’ enables compressor to start running immediately.
5. Integral term removed from PID calculation inside set range.
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Annex E-1 200707 XTD controller XTD043RB-K620G&F (Mini at SW v39.4) 18

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Pressure & Flow Adjustment
Annex F-1
DOCUMENT DETAILS
Date
29/NOV/2019
Compiled by
MJH
Revision
1
PRESSURE AND FLOW ADJUSTMENT IN MINI CHILLER WITH CENTRIFUGAL PUMP
The Mini is available with a range of pump options. Low pressure requirements are best served by the quieter and
mechanically looser centrifugal types –the flow of these items is dictated by the backpressure of the pipework
through which it must pump. Reviewing the pump flow curve can indicate the flow expected. Centrifugal pumps
have such a limited maximum pressure, that the water circuit components alone can hold the pressure, and no
pressure relief valve is fitted.
If further limitation of pressure is required, a flow control valve can be fitted to either the outlet or inlet of the
chiller, depending on whether the application is to be pressurized or not.
Annex F-1 191129 PD pump without relief 19

Applied Thermal Control Ltd
39 Hayhill Industrial Estate
Barrow-upon-Soar, Loughborough
LE12 8LD, United Kingdom
[phone]
[e-mail]
[e-mail]
Operating Manual; Troubleshooting
Annex G-1
DOCUMENT DETAILS
Date
29/NOV/2019
Author(s)
MJH
Page
1 / 1
Revision
1
MINI GENERIC INITIAL TROUBLESHOOTING
Symptom
Potential Cause(s)
Compressor not running
Check the connection of the compressor power plug situated on top of the
compressor itself.
Check the connection of the signal line from the controller to the compressor
PCB control board.
The compressor has built-in logic issued via its PCB control board –board error
states are communicated to the main touchscreen controller.
Noisy operation
Usually bearing failure in rotating machinery causes noise –this might be the
cooling fan, the compressor or the pump. Pay attention to specific components
to identify the source of noise.
Fluid lines becoming fouled /
containing biological matter
Not using opaque tubing can lead to UV light passing through the tubing,
prompting growth of organisms.
Not following maintenance schedule for cleaning/flushing.
Fluid seen leaking from system
Your fluid may be incompatible with the materials used in chiller construction.
Contact ATC to ensure the fluid is compatible.
Rapid changes in system temperature can cause some materials to change
shape at a faster rate than others. Contact ATC to discuss alternative materials
and parts in water circuit construction.
Poor cooling capacity
(undercooling)
Check for any error states on the compressor –the controller will indicate if an
error has occurred –tapping to clear will allow refrigeration to continue.
This can be caused by 1) excess application thermal heat load, 2) excess
ambient temperature, 3) fan failure, or 4) controller issues with fan speed or
compressor control.
Excess cooling capacity
(overcooling)
Check behavior of heating solenoid valve –if no power reaches the coil, or if it
jammed closed, cooling may continue to occur.
Check value that system seeing for ‘OUT’ liquid temperature. A value reported
that is higher than actual will force the system to cool without need.
Following period of being
powered-down, chiller no
longer retains correct time and
date settings.
When no mains power is provided to the chiller, a PCB-mounted button cell is
used to power the real time clock (RTC).
This is a lithium cell with Panasonic part number BR-1225/BN. The item is UL-
approved under file number MH12210. ATC provide approved replacements.
Annex G-1 191129 Mini, generic initial troubleshooting 20