Armstrong 3760 ProDose Series User manual

© 2019 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Errors and omissions excepted.
Nov-19 Page 1 / 35 Rev.19.2
V10 DIGITAL CONTROLLER
Engineers Notes
www.flamcogroup.com
Installation and
operating
instructions
3760 Digital Controller
File No: 37.209
Date: august 30, 2023
Supersedes: new
Date: new

contents
Pressures in A Sealed System 4
About this Manual 5
Conventions used in this Manual 6
Typography 6
Where to find more Information 6
Electrical Power Supply 7
Micro Controller 8
Fault contacts 8
Controller Overview 10
Controller Programming 10
Program Parameter List – Customer Code 12
Operation 13
Fault Codes 13
Terminal Layout 15
MODBUS Mapping 16
BACNET Mapping
(Requires Additional TITAN Gateway) 24
Troubleshooting 28

installation &
operating instructions
3760 Digital
Controller
4
© 2019 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Errors and omissions excepted.
Nov-19 Page 4 / 35 Rev.19.2
Pressures In A Sealed System
Below is an overview of how the settings on a pressurisation unit must be considered for normal
topup operation.
Close, conflicting or overlapping settings will cause system instability and nuisance alarm conditions.
If in any doubt please seek advice from a Sealed System professional.
A typical venting allowance is 0.3 bar, added to the static height to give the cold fill pressure.
The Differential setting represents the allowable pressure loss before the pump activates and
restores the cold fill pressure. The Differential setting must not be greater than the system venting
allowance. This will ensure that the system remains fully flooded during normal topup conditions.
Pressures in A Sealed System
Below is an overview of how the settings on a pressurisation unit must be considered for normal
topup operation.
Close, conflicting or overlapping settings will cause system instability and nuisance alarm conditions.
If in any doubt please seek advice from a Sealed System professional.
A typical venting allowance is 0.3 bar, added to the static height to give the cold fill pressure.
The Dierential setting represents the allowable pressure loss before the pump activates and restores the cold fill
pressure. The Dierential setting must not be greater than the system venting allowance. This will ensure that the
system remains fully flooded during normal topup conditions.

installation &
operating instructions
3760 Digital
Controller
5
When the equipment contains a degassing element/function, the following pressures must also be taken into
account:
The degassing element will connect and disconnect from the main system as required to perform its normal
function, a pressure reducing valve is also incorporated into the assembly to prevent overpressure of this equipment.
As a result, the vacuum cylinder is protected with a 6 bar Safety Relief valve regardless of the main hydronic system
pressure.
Typically, the Vacuum Cylinder Alarm Pressure is factory set to 4 bar, the Stabilised Pressure is set to 1 bar and the
Desired Vacuum Pressure is set to -0.5 bar. These can be adjusted at the time of commissioning if required.
On Heating systems, the Desired Vacuum Pressure must be adjusted to meet the Steam Tables for the incoming
fluid temperatures. It is important to note that at 70 deg. C, water subjected to a vacuum pressure of -0.5 bar
(Gauge) will turn to low temperature steam and be vented from the equipment. This can aect the integrity of the
Hydronic System and also negatively influence the chemical dosing regime.
Close, conflicting or overlapping settings will cause system instability and nuisance alarm conditions. If in any doubt
please seek advice from a Sealed System professional.
About this Manual
This Operation and Maintenance Manual contains all the necessary information to install, commission, operate and
maintain the Armstrong equipment.
It is recommended to read all parts of this manual before undertaking any work on the equipment.
© 2019 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Errors and omissions excepted.
Nov-19 Page 5 / 35 Rev.19.2
When the equipment contains a degassing element/function, the following pressures must also be
taken into account:
The degassing element will connect and disconnect from the main system as required to perform its
normal function, a pressure reducing valve is also incorporated into the assembly to prevent
overpressure of this equipment. As a result, the vacuum cylinder is protected with a 6 bar Safety
Relief valve regardless of the main hydronic system pressure.
Typically, the Vacuum Cylinder Alarm Pressure is factory set to 4 bar, the Stabilised Pressure is set to
1 bar and the Desired Vacuum Pressure is set to -0.5 bar. These can be adjusted at the time of
commissioning if required.
On Heating systems, the Desired Vacuum Pressure must be adjusted to meet the Steam Tables for
the incoming fluid temperatures. It is important to note that at 70 deg. C, water subjected to a
vacuum pressure of -0.5 bar (Gauge) will turn to low temperature steam and be vented from the
equipment. This can affect the integrity of the Hydronic System and also negatively influence the
chemical dosing regime.
Close, conflicting or overlapping settings will cause system instability and nuisance alarm conditions.
If in any doubt please seek advice from a Sealed System professional.
About this Manual
This Operation and Maintenance Manual contains all the necessary information to install,
commission, operate and maintain the Flamco equipment.
It is recommended to read all parts of this manual before undertaking any work on the equipment.

installation &
operating instructions
3760 Digital
Controller
6
Conventions used in this Manual
This manual makes use of symbols to identify key pieces of information. Please take note of the following symbols
and their meaning:
DANGER – Important safety related information intended to prevent injury and/or damage to the
equipment, system or property.
CAUTION - Important information intended to prevent damage to the equipment, system or property.
IMPORTANT - Important information intended to ensure that the equipment functions correctly.
USEFUL – Useful information which may be helpful but is not necessarily required for the unit to
function correctly.
Typography
This manual makes use of dierent typography to identify dierent types of information.
Italics Key words and phrases
(Round Brackets) Used to identify a button on the digital controller
[Square Brackets] A parameter on the digital controller
<Inequality Symbols> A message/fault code displayed on the digital controller
Where to find more Information
For further information please visit the Armstrong Fluid Technology Website at the following URL:
www.armstrongfluidtechnology.com
Alternatively, please contact the Armstrong Fluid Technology oce using the details below:
Phone: [phone]
Email: ukservice@armstrongfluidtechnology.com
© 2018 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Rev 1.0 Aug-18 Page 8 / 48
About this Manual
This Operation and Maintenance Manual contains all the necessary information to install, commission, operate
and maintain the Flamco Prestige equipment.
It is recommended to read all parts of this manual before undertaking any work on the equipment.
Conventions used in this Manual
This manual makes use of symbols to identify key pieces of information. Please take note of the following
symbols and their meaning:
DANGER –Important safety related information intended to prevent injury and/or damage to the
equipment, system or property.
CAUTION - Important information intended to prevent damage to the equipment, system or
property.
IMPORTANT - Important information intended to ensure that the equipment functions correctly.
USEFUL –Useful information which may be helpful, but is not necessarily required for the unit to
function correctly.
Typography
This manual makes use of different typography to identify different types of information.
Italics Key words and phrases
(Round Brackets) Used to identify a button on the digital controller
[Square Brackets] A parameter on the digital controller
<Inequality Symbols> A message/fault code displayed on the digital controller
Where to find more Information
For further information please visit the Flamco Limited Website at the following URL:
www.flamco.co.uk
Alternatively, please contact the Flamco Limited office using the details below:
Phone: [phone]
Fax: [phone]
Email: [e-mail] OR [e-mail]

installation &
operating instructions
3760 Digital
Controller
7
Electrical Power Supply
This equipment must be electrically isolated before removing the covers. Cables connected to the volt
free contacts may be supplied from another source and may remain live after the unit is isolated. These
must be isolated elsewhere.
All electrical connections must be carried out by a suitably qualified and competent person.
The mains power supply to the pressurisation unit must be connected as shown below:
It is a requirement to supply power to the pressurisation unit via a lockable isolator.
This should be installed within 2m of the equipment.
This equipment can be damaged by the high voltages produced by electrical installation testing
equipment. When performing electrical installation tests, the equipment must be isolated from the
mains supply.
© 2018 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Rev 1.0 Aug-18 Page 14 / 48
Electrical Power Supply
This equipment must be electrically isolated before removing the covers. Cables connected to the
volt free contacts may be supplied from another source and may remain live after the unit is
isolated. These must be isolated elsewhere.
All electrical connections must be carried out by a suitably qualified and competent person.
The mains power supply to the pressurisation unit must be connected as shown below:
It is recommended to supply power to the pressurisation unit via a lockable isolator. This should
be installed within 2m of the equipment.
This equipment can be damaged by the high voltages produced by electrical installation testing
equipment. When performing electrical installation tests, the equipment must be isolated from
the supply.
© 2018 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Rev 1.0 Aug-18 Page 14 / 48
Electrical Power Supply
This equipment must be electrically isolated before removing the covers. Cables connected to the
volt free contacts may be supplied from another source and may remain live after the unit is
isolated. These must be isolated elsewhere.
All electrical connections must be carried out by a suitably qualified and competent person.
The mains power supply to the pressurisation unit must be connected as shown below:
It is recommended to supply power to the pressurisation unit via a lockable isolator. This should
be installed within 2m of the equipment.
This equipment can be damaged by the high voltages produced by electrical installation testing
equipment. When performing electrical installation tests, the equipment must be isolated from
the supply.
© 2018 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Rev 1.0 Aug-18 Page 14 / 48
Electrical Power Supply
This equipment must be electrically isolated before removing the covers. Cables connected to the
volt free contacts may be supplied from another source and may remain live after the unit is
isolated. These must be isolated elsewhere.
All electrical connections must be carried out by a suitably qualified and competent person.
The mains power supply to the pressurisation unit must be connected as shown below:
It is recommended to supply power to the pressurisation unit via a lockable isolator. This should
be installed within 2m of the equipment.
This equipment can be damaged by the high voltages produced by electrical installation testing
equipment. When performing electrical installation tests, the equipment must be isolated from
the supply.
© 2018 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Rev 1.0 Aug-18 Page 14 / 48
Electrical Power Supply
This equipment must be electrically isolated before removing the covers. Cables connected to the
volt free contacts may be supplied from another source and may remain live after the unit is
isolated. These must be isolated elsewhere.
All electrical connections must be carried out by a suitably qualified and competent person.
The mains power supply to the pressurisation unit must be connected as shown below:
It is recommended to supply power to the pressurisation unit via a lockable isolator. This should
be installed within 2m of the equipment.
This equipment can be damaged by the high voltages produced by electrical installation testing
equipment. When performing electrical installation tests, the equipment must be isolated from
the supply.
© 2019 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Errors and omissions excepted.
Nov-19 Page 7 / 35 Rev.19.2
Electrical Power Supply
This equipment must be electrically isolated before removing the covers. Cables
connected to the volt free contacts may be supplied from another source and may
remain live after the unit is isolated. These must be isolated elsewhere.
All electrical connections must be carried out by a suitably qualified and competent
person.
The mains power supply to the pressurisation unit must be connected as shown below:
Mini, Midi, Flexfiller & MIDIFILL PLUS FLEXFILLER PLUS
It is a requirement to supply power to the pressurisation unit via a lockable isolator.
This should be installed within 2m of the equipment.
This equipment can be damaged by the high voltages produced by electrical
installation testing equipment. When performing electrical installation tests, the
equipment must be isolated from the mains supply.
ProVDG 2UHP model
Midi & Pro Models

installation &
operating instructions
3760 Digital
Controller
8
Micro Controller
Fault contacts
There are 6 volt free fault contacts which can be used for connection to a BMS system, located on terminals 1-12 on
the digital controller.
With the exception of the Common Alarm, it is possible to convert all other fault contacts to normally
closed. For further information please refer to the commissioning section of this manual.
The other volt free contacts can be connected to the BMS and when the alarm is triggered this is
shown on the Pressurisation unit and the BMS.
© 2019 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Errors and omissions excepted.
Nov-19 Page 8 / 35 Rev.19.2
Micro Controller
Fault contacts
There are 6 volt free fault contacts which can be used for connection to a BMS system, located on
terminals 1-12 on the digital controller.
With the exception of the Common Alarm, it is possible to convert all other fault
contacts to normally closed. For further information please refer to the commissioning
section of this manual.
The other volt free contacts can be connected to the BMS and when the alarm is
triggered this is shown on the Pressurisation unit and the BMS.
© 2018 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Rev 1.0 Aug-18 Page 15 / 48
Micro Controller
Fault contacts
There are 6 volt free fault contacts which can be used for connection to a BMS system, located on terminals 1-
12 on the digital controller.
With the exception of the Common Alarm, it is possible to convert all other fault contacts to
normally closed. For further information please refer to the commissioning section of this manual.
The other volt free contacts can be connected to the BMS and when the alarm is triggered this is
shown on the Pressurisation unit and the BMS.

installation &
operating instructions
3760 Digital
Controller
9
With the expansion board there are additional volt free contacts and inputs available.
© 2019 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Errors and omissions excepted.
Nov-19 Page 9 / 35 Rev.19.2
With the expansion board there are additional volt free contacts and inputs available.
Feature
3760 Controller 3760 Controller & Expansion Board
Volt Free
Contact
(For
Customers
BMS)
Low Pressure Alarm
√
√
Low Pressure Warning
√
Common Alarm
√
√
High Pressure Warning
√
High Pressure Alarm
√
√
Pump 1 Topup Run
√
Pump 2 Topup Run
√
Low Additive
√
Pump 1 Health
√
√
Pump 2 Health
√
√
Topup Sensor Health
√
√
Low Water
√
Volt Free
Inputs For
Controller
Operation
SPC Interface
√ (Must choose one, configurable
alternatives)
√
High Water Switch
√
Low Additive Switch
√
Low Water Switch
√
√
Vacuum Sensor
√ (Must choose one, configurable
alternatives)
√
System Pressure Sensor
√

installation &
operating instructions
3760 Digital
Controller
10
Controller Overview
The following image shows the front of the pressurisation unit digital controller. 4 buttons are provided for
programming, and an LED display which shows scrolling messages.
When the controller is first powered up, it will display the controller version number. This manual
relates to controller version >10.0. If the controller is of a dierent version, there may be dierences in
the menu items available.
When in normal operation, the controller will display the current system pressure. If a fault occurs, the controller will
display a fault code and produce an audible alarm.
In normal operation, the functions of the buttons are as follows:
© 2019 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Errors and omissions excepted.
Nov-19 Page 10 / 35 Rev.19.2
Controller Overview
The following image shows the front of the pressurisation unit digital controller. 4 buttons are
provided for programming, and an LED display which shows scrolling messages.
When the controller is first powered up, it will display the controller version number.
This manual relates to controller version >10.0. If the controller is of a different
version, there may be differences in the menu items available.
When in normal operation, the controller will display the current system pressure. If a fault occurs,
the controller will display a fault code and produce an audible alarm.
In normal operation, the functions of the buttons are as follows:
Button
Function
Press
Hold
SET
-
Show Current System Pressure
MUTE
Mute Audible Alarm
Reset Unit
+
-
Enter Programming Menu
-
-
Enter Programming Menu
Controller Programming
Do not alter any settings without first understanding the implications of doing so.
Incorrect settings may cause damage to the equipment, wider system or property.
To enter the programming menu, hold the (+) button until “enter code” appears on the screen,
followed by “9999” with a flashing cursor after the first digit.
To gain access to the programming menu, one of the following codes must be entered:
Standard Code
Standard set of options
2601
Engineer Code
Full set of options
4706
To enter the code, change the first digit with the (+) and (-) buttons, then press (SET) to move onto
the next digit. Repeat for all digits, then once the correct code is shown on the display, press (SET) to
enter the programming menu.
Once a correct code has been entered, the first option PR00 –Language will appear, select E for
English or change as appropriate, and then press and hold (SET) & (+) to move to next menu.
© 2019 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Errors and omissions excepted.
Nov-19 Page 10 / 35 Rev.19.2
Controller Overview
The following image shows the front of the pressurisation unit digital controller. 4 buttons are
provided for programming, and an LED display which shows scrolling messages.
When the controller is first powered up, it will display the controller version number.
This manual relates to controller version >10.0. If the controller is of a different
version, there may be differences in the menu items available.
When in normal operation, the controller will display the current system pressure. If a fault occurs,
the controller will display a fault code and produce an audible alarm.
In normal operation, the functions of the buttons are as follows:
Button
Function
Press
Hold
SET
-
Show Current System Pressure
MUTE
Mute Audible Alarm
Reset Unit
+
-
Enter Programming Menu
-
-
Enter Programming Menu
Controller Programming
Do not alter any settings without first understanding the implications of doing so.
Incorrect settings may cause damage to the equipment, wider system or property.
To enter the programming menu, hold the (+) button until “enter code” appears on the screen,
followed by “9999” with a flashing cursor after the first digit.
To gain access to the programming menu, one of the following codes must be entered:
Standard Code
Standard set of options
2601
Engineer Code
Full set of options
4706
To enter the code, change the first digit with the (+) and (-) buttons, then press (SET) to move onto
the next digit. Repeat for all digits, then once the correct code is shown on the display, press (SET) to
enter the programming menu.
Once a correct code has been entered, the first option PR00 –Language will appear, select E for
English or change as appropriate, and then press and hold (SET) & (+) to move to next menu.
© 2018 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Rev 1.0 Aug-18 Page 16 / 48
Commissioning
It is highly recommended to have this equipment commissioned by a Flamco approved engineer.
Any damage or loss incurred through incorrect commissioning by an unapproved engineer will not
be covered by the warranty.
Pre-Commissioning Checklist
The following conditions must be met before starting the commissioning process. Failure to meet
these conditions may result in injury or damage to the equipment, system and property.
Equipment is sited in a frost-free area, away from precipitation and water sprays/jets
All necessary pipe/electrical connections have been made to a satisfactory standard
The temperature and pressure at the point of connection are within the operating limits of the
pressurisation unit.
The heating/cooling system is fitted with a safety valve and expansion vessel
The following conditions must be met for the pressurisation unit and heating/cooling system to
function correctly. If these conditions have not been met, it is not advisable to proceed with the
commissioning process.
The system connection has been made into the system return header / pump suction
There are no non-return valves, pressure reducing valves or RPZ valves installed between the
pressurisation unit and the heating/cooling system
The expansion vessel is pre-charged to the correct pressure (equal to PU cold fill pressure)
It is advisable to fill the heating/cooling system prior to commissioning. If this is not possible, the
pressurisation unit can be used to fill the system after commissioning (Not possible with Mini
Units). Depending on the size of the system, this may take a considerable amount of time.
The heating/cooling system is filled and pressurised to the required cold fill pressure, with the water at
ambient temperature (approximately).
© 2018 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Rev 1.0 Aug-18 Page 18 / 48
Controller Programming
Do not alter any settings without first understanding the implications of doing so. Incorrect
settings may cause damage to the equipment, wider system or property.
To enter the programming menu, hold the (+) button until “enter code” appears on the screen, followed by
“9999” with a flashing cursor after the first digit.
To gain access to the programming menu, one of the following codes must be entered:
Standard Code
Standard set of options
2601
Engineer Code
Full set of options
4706
To enter the code, change the first digit with the (+) and (-) buttons, then press (SET) to move onto the next
digit. Repeat for all digits, then once the correct code is shown on the display, press (SET) to enter the
programming menu.
Once a correct code has been entered, the first option PR00 –Language will appear select E and then press and
hold (SET) & (+) to move to next menu.
Once in the menu, the value of the current menu item can be changed using the (+) and (-) buttons. Once the
current value has been set, pressing the (SET) & (+) buttons together to move to the next option or (SET) & (-)
buttons together to move back an option is you made an error.
Once the programming is complete press and hold the (SET) button for few seconds to save the settings.
If the controller loses power while in the programming menu, all changes made up to that point
will be erased. To confirm all changes, the end of the menu must be reached, and press and hold
the (SET) button for few seconds to save the settings
Key:
(SET) & (+) = Move to next menu
(SET) & (-) = Move back to pervious next menu
Hold down (SET) = Hold (SET) button down for few seconds saves the menu
Controller Programming
Do not alter any settings without first understanding the implications of doing so. Incorrect settings
may cause damage to the equipment, wider system or property.
To enter the programming menu, hold the (+) button until “enter code” appears on the screen, followed by “9999”
with a flashing cursor after the first digit.
To gain access to the programming menu, the following code must be entered:
Standard Code Standard set of options 2601

installation &
operating instructions
3760 Digital
Controller
11
To enter the code, change the first digit with the (+) and (-) buttons, then press (SET) to move onto the next digit.
Repeat for all digits, then once the correct code is shown on the display, press (SET) to enter the programming
menu.
Once a correct code has been entered, the first option PR00 – Language will appear, select E for English or change as
appropriate, and then press and hold (SET) & (+) to move to next menu.
Once in the main menu, the value of the current menu item can be changed using the (+) and (-) buttons. Once the
current variable has been set, pressing the (SET) & (+) buttons together to move to the next option or (SET) & (-)
buttons together to move back an option is you made an error.
Once the programming is complete press and hold the (SET) button for few seconds to save the settings.
If the controller loses power while in the programming menu, all changes made up to that point will
be erased. To confirm all changes, the end of the menu must be reached or press and hold the (SET)
button for few seconds to save the settings
Key:
(SET) & (+) = Move to next menu
(SET) & (-) = Move back to pervious next menu
Hold down (SET) & (+) = Speed through to desired menu item
Hold down (SET) & (-) = Speed through to desired menu item
Hold down (SET) = Hold (SET) button down for few seconds saves the menu
© 2018 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Rev 1.0 Aug-18 Page 18 / 48
Controller Programming
Do not alter any settings without first understanding the implications of doing so. Incorrect
settings may cause damage to the equipment, wider system or property.
To enter the programming menu, hold the (+) button until “enter code” appears on the screen, followed by
“9999” with a flashing cursor after the first digit.
To gain access to the programming menu, one of the following codes must be entered:
Standard Code
Standard set of options
2601
Engineer Code
Full set of options
4706
To enter the code, change the first digit with the (+) and (-) buttons, then press (SET) to move onto the next
digit. Repeat for all digits, then once the correct code is shown on the display, press (SET) to enter the
programming menu.
Once a correct code has been entered, the first option PR00 –Language will appear select E and then press and
hold (SET) & (+) to move to next menu.
Once in the menu, the value of the current menu item can be changed using the (+) and (-) buttons. Once the
current value has been set, pressing the (SET) & (+) buttons together to move to the next option or (SET) & (-)
buttons together to move back an option is you made an error.
Once the programming is complete press and hold the (SET) button for few seconds to save the settings.
If the controller loses power while in the programming menu, all changes made up to that point
will be erased. To confirm all changes, the end of the menu must be reached, and press and hold
the (SET) button for few seconds to save the settings
Key:
(SET) & (+) = Move to next menu
(SET) & (-) = Move back to pervious next menu
Hold down (SET) = Hold (SET) button down for few seconds saves the menu

installation &
operating instructions
3760 Digital
Controller
12
Program Parameter List – Customer Code
The table below gives details of all menu items, in the order that they will appear:
© 2019 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Errors and omissions excepted.
Nov-19 Page 12 / 35 Rev.19.2
Program Parameter List –Customer Code
The table below gives details of all menu items, in the order that they will appear:
PR No Customer Code - 2601 Notes Default
Unit
0 Language
E=English I=Italian D=Deutsch F=French
N=Netherlands
E
2 Low Pressure Alarm Recommend Fill Pressure -0.5 Bar 0.5
Bar
STANDARD OPTION
3
Low Pressure Warning
Recommend Fill Pressure -0.3 Bar
0.6
Bar
4 Differential
Pressure Drop From Fill Pressure For
Pump Activation
0.2
Bar
5 Fill Pressure
Recommend Static Pressure + 0.3 Bar
Venting Allowance
1.0
Bar
6 High Pressure Warning
Recommend High Pressure Alarm -0.1
Bar
2.6
Bar
7 High Pressure Alarm
Recommend System Safety Valve -
10%
2.7
Bar
8
Flood Limit
Maximum Pump Run Time
10
minutes
9 Excessive Start Quantity
Frequency Alarm (Linked To
Parameter 10)
0
10 Excessive Start Time
Frequency Alarm (Linked To
Parameter 9)
8
hours
28 Fill system
Override Flood Limit Timer For A 24
Hour Period While The System Is First
Filled
N
45 Service Reminder Y/N 12 Monthly Service Reminder N
48 ID Number MODBUS ID Number 1
49
Review Logs
N
50 (*)
P1 Topup Count
Counter For P1 Used For Topup
51 (*)
P1 Topup Hours
Hours Run For P1 Topup
52 (*)
P2 Topup Count
Counter For P2 Used For Topup
53 (*) P2 Topup Hours Hours Run For P2 Topup
54 (*) P1 Total Hours Total Hours Run P1 (Inc Degassing)
55 (*) P2 Total Hours Total Hours Run P2 (Inc Degassing)
56 (*)
Alarm Count
Alarm Counter
57 (*)
Power Interrupted Count
Power Interrupted Counter

installation &
operating instructions
3760 Digital
Controller
13
Operation
Once commissioned, the pressurisation unit should operate without any user intervention.
Under normal operating conditions, the display will show the current system pressure in Bar.
While the unit is filling, the display will show <PUMP 1 RUN> or <PUMP 2 RUN> depending on which pump is
currently running.
If the unit identifies a fault, the display will show the relevant fault code.
If the pressurisation unit is showing a fault code on the display, holding down the [SET] button will
cause the current system pressure to be temporarily shown on the display.
© 2019 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Errors and omissions excepted.
Nov-19 Page 16 / 35 Rev.19.2
Operation
Once commissioned, the pressurisation unit should operate without any user intervention.
Under normal operating conditions, the display will show the current system pressure in Bar.
While the unit is filling, the display will show <PUMP 1 RUN> or <PUMP 2 RUN> depending on which
pump is currently running.
If the unit identifies a fault, the display will show the relevant fault code.
If the pressurisation unit is showing a fault code on the display, holding
down the [SET] button will cause the current system pressure to be
temporarily shown on the display.
Fault Codes
The following table gives the meanings of all fault codes used on the digital controller:
Fault code
Description
Auto/Manual Reset
Low H2O
The break-tank low level float switch has been activated
Auto Reset
High H2O
The break-tank high level float switch has been activated
Auto Reset
Hw Communication Error
Communication failure between controller and expansion
board
Manual Reset
Pressure Sensor Fail
System pressure not registering and sensor may have
failed
Manual Reset
Degasser Sensor Fail
Pressure within the cylinder not registering and sensor
may have failed Manual Reset
Excessive Demand
There have been too many pump starts within the set
period period
Manual Reset
Flood Limit
The respective pump has run for longer than the [FLOOD
LIMIT] period
Manual Reset
Pump Timeout
The pump has not achieved the required vacuum
pressure in the required timeframe, check for airlock and
blockages
Manual Reset
High Pressure Alarm
The system pressure is above the [HIGH PRESSURE] set
point.
Auto Reset
Low Pressure Alarm
The system pressure is below the [LOW PRESSURE] set
point.
Auto Reset
Pump1 Failure
The controller has detected a fault (incorrect current
draw) on the respective pump Manual Reset
Pump2 Failure
Insufficient Vacuum
The low water switch has been activated, Vacuum
pressure has not been achieved, check non return valve
on cylinder and joint integrity for air ingress
Manual Reset
Degassing Pump Failure
Pump not reaching the require pressure within degassing
mode
Manual Reset
Vac Cylinder high Pressure
Cylinder pressure alarm reached
Manual Reset
Stabilization Timeout
The Stabilisation pressure has not been achieved in the
specified timeframe, check PRV for setting and blockages Manual Reset
© 2018 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Rev 1.0 Aug-18 Page 28 / 48
Operation
Once commissioned, the pressurisation unit should operate without any user intervention.
Under normal operating conditions, the display will show the current system pressure in Bar.
While the unit is filling, the display will show <PUMP 1 RUN> or <PUMP 2 RUN> depending on which pump is
currently running.
If the unit identifies a fault, the display will show the relevant fault code.
If the pressurisation unit is showing a fault code on the display, holding down the [SET] button
will cause the current system pressure to be temporarily shown on the display.
Fault Codes
The following table gives the meanings of all fault codes used on the digital controller:
Fault code
Description
Auto/Manual Reset
Low H2O
The break-tank low level float switch has been activated
Auto Reset
High H2O
The break-tank high level float switch has been activated
Auto Reset
Hw Communication Error
Communication between controller and expansion board
not registering
Manual Reset
Pressure Sensor Fail
System pressure not registering and may have failed
Manual Reset
Degas Sensor Fail
Pressure within the cylinder not registering and may have
failed
Manual Reset
Excessive Demand
There have been 4 pump starts within an 8 hour period
Manual Reset
Flood Limit
The respective pump has run for longer than the [FLOOD
LIMIT] period
Manual Reset
Pump Timeout
Excessive high demand of water been pumped
Manual Reset
High Pressure Alarm
The system pressure is above the [HIGH PRESSURE] set
point.
Auto Reset
Low Pressure Alarm
The system pressure is below the [LOW PRESSURE] set
point.
Auto Reset
Pump1 Failure
The controller has detected a fault (incorrect current
draw) on the respective pump
Manual Reset
Pump2 Failure
All Pumps Failure
All pumps not making up pressure on system
Replace pump
Insufficient Vacuum
The low water switch has been activated, either a leak
has occurred or the air non- return valve has failed or is
missing.
Manual Reset
Degassing Pump Failure
Pump not reaching the require pressure within degassing
mode
Manual Reset
Vac Cylinder high Pressure
Cylinder pressure alarm reached
Manual Reset
Stabilization Timeout
Either the pumps have run for too long or the pressure
has not reached the required start pressure for the pump
within the time limit.
Manual Reset
Fault Codes
The following table gives the meanings of all fault codes used on the digital controller:

installation &
operating instructions
3760 Digital
Controller
14
© 2019 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Errors and omissions excepted.
Nov-19 Page 17 / 35 Rev.19.2
Fault code
Description
Auto/Manual Reset
Low Additive
Additive tank requires manual topup
Auto Reset
Low Pressure Warning
The system pressure is below the [LOW PRESSURE
WARNING] set point.
Auto Reset
High Pressure Warning
The system pressure is above the [HIGH PRESSURE
WARNING] set point.
Auto Reset
Maintain Pump1
Lifetime usage of pump has been reached
Replace pump
Maintain Pump2
Service
The pressurisation unit is due an annual service
Manual Reset
Reset Required
Unit need to be restarted
Manual Reset

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Nov-19 Page 18 / 35 Rev.19.2
Terminal Layout
Terminal Layout

installation &
operating instructions
3760 Digital
Controller
16
MODBUS Mapping
MODBUS RTU
Board rate: 9600
Stop bits: 1 stop bit
Parity: no parity
Default ID Number: 1

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Nov-19 Page 20 / 35 Rev.19.2
REGISTER TYPE BYTES
DESCRIPTION
TYPE OF VARIABLE UNIT/NOTES
(MB MAIN CONTROLLER, EB EXPANSION BOARD)
40001 READ 2 REALTIME SYSTEM PRESSURE ANALOG DECIMAL OF BAR (GAUGE) 40002 READ 2 TOPUP SETPOINT ANALOG DECIMAL OF BAR (GAUGE) 40003 READ 2 VACUUM SENSOR PRESSURE ANALOG
DECIMAL OF BAR PLUS 10 POINTS (ABSOLUTE)
40004 READ 2 DEGASSING SET POINT ANALOG
DECIMAL OF BAR PLUS 10 POINTS (ABSOLUTE)
40005
READ
2
LIVE OPERATION MODE
DISCRETE 1=TOPUP 0=DEGASSING
LIVE OPERATING MODE
40006 READ 2 PUMP1 STATUS DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS PUMP1 IN USE? (TOPUP OR DEGASSING)
40007 READ 2 PUMP2 STATUS DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS PUMP2 IN USE? (TOPUP OR DEGASSING)
40008 READ 2 LOW WATER INPUT STATUS (MB 18/19) DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS A LOW WATER SIGNAL BEING RECEIVED?
40009 READ 2 HIGH WATER INPUT STATUS (MB 20/21) DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS A HIGH WATER SIGNAL BEING RECEIVED?
40010 READ 2 HIGH PRESSURE ALARM STATUS DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS A HIGH PRESSURE ALARM BEING
PROCESSED? (CRITICAL STOP)
40011 READ 2 HIGH PRESSURE WARNING STATUS DISCRETE 1=ACTIVE 0=NOT ACTIVE IS A HIGH PRESSURE WARNING BEING
PROCESSED?
40012 READ 2 LOW PRESSURE WARNING STATUS DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS A LOW PRESSURE WARNING BEING
PROCESSED?
40013 READ 2 LOW PRESSURE ALARM STATUS DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS A LOW PRESSURE ALARM BEING
PROCESSED?

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Nov-19 Page 22 / 35 Rev.19.2
40025
READ
2
SENSOR HEALTH ALARM STATUS
DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS THE PRESSURE SENSOR HEALTHY?
40026
READ
2
PUMP1 HEALTH ALARM STATUS
DISCRETE 1=ACTIVE 0=NOT ACTIVE
HAS P1 FAILED?
40027
READ
2
PUMP2 HEALTH ALARM STATUS
DISCRETE 1=ACTIVE 0=NOT ACTIVE
HAS P2 FAILED?
40028
READ
2
COMMON ALARM ALARM STATUS
DISCRETE 1=ACTIVE 0=NOT ACTIVE
COMMON ALARM
40029 READ 2
STABILISED PRESSURE SETPOINT (DEGASSING EQUIPMENT)
ANALOG DECIMAL OF BAR PLUS 10 POINTS
(ABSOLUTE)
40030
READ
2
PUMP1 ACTIVE FOR TOPUP
DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS PUMP1 RUNNING FOR TOPUP?
40031 READ 2 PUMP2 ACTIVE FOR TOPUP DISCRETE 1=ACTIVE 0=NOT ACTIVE IS PUMP2 RUNNING FOR TOPUP?
Nov-19 Page 21 / 35 Rev.19.2
40014 READ 2 SLAMSHUT SOLENOID STATUS DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS A HIGH VACUUM CYLINDER PRESSURE ACTIVATING THE PROTECTIVE SLAMSHUT SOLENOID?
40015 READ 2 PURGE SOLENOID STATUS DISCRETE 1=ACTIVE 0=NOT ACTIVE IS THE PURGE SOLENOID ACTIVE? 40016 READ 2 BREAKTANK SOLENOID STATUS DISCRETE 1=ACTIVE 0=NOT ACTIVE IS BREAKTANK SOLENOID ACTIVE?
40017
READ
2
LOW ADDITIVE SWITCH STATUS (INPUT)
DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS THERE A LOW ADDITIVE SIGNAL?
40018 READ 2 SPC SWITCH STATUS (INPUT) DISCRETE 1=ACTIVE 0=NOT ACTIVE IS THERE AN SPC INTERLOCK SIGNAL?
40019
READ
2
LOW VACCUM SWITCH STATUS (INPUT)
DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS THERE A LOW VACUUM ALARM?
40020 READ 2 AUXILIARY SWITCH INPUT DISCRETE 1=ACTIVE 0=NOT ACTIVE 40021 READ 2 LOW ADDITIVE ALARM STATUS DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS THE LOW ADDITIVE OUTPUT VFC ACTIVE?
40022 READ 2 LOW WATER ALARM STATUS DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS THE LOW WATER OUTPUT VFC ACTIVE?
40023 READ 2 EXPANSION BOARD PRESENT?
DISCRETE 1=PRESENT 0=NOT PRESENT
IS THE EXPANSION BOARD THERE?
40024 READ 2 STATUS OF COMMUNICATION BETWEEN
CONTROLLER AND EXPANSION BOARD DISCRETE 1=ACTIVE 0=NOT ACTIVE
IS THE COMMUNICATION LINK BETWEEN THE MAIN CONTROLLER AND THE EXPANSION BOARD ACTIVE?

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Nov-19 Page 23 / 35 Rev.19.2
40032 READ 2
STATE CHANGE STRING (MULTIPLE EVENTS IN ONE BINARY STRING)
BIT X=1 ACTIVE BIT=0 NOT ACTIVE BINARY: NNNN NNNN NNNN NNNN
ALARM TYPE ACTIVE IF BIT =1 ALARM TYPE NOT ACTIVE IF BIT =0
BIT 1
COMUNICATION FAILURE BETWEEN MAIN BOARD AND EXPANSION BOARD
BIT 2 PRESSURE SENSOR FAILURE BIT 3 VACUUM SENSOR FAILURE BIT 4 EXCESSIVE DEMAND ALARM BIT 5 FLOOD LIMIT ALARM BIT 6 TIMEOUT (DEGASSING ALARM ON VALVE TIME) BIT 7 FILL NOT ACHIEVED IN 24 HOURS BIT 8 HIGH PRESSURE ALARM BIT 9 LOW PRESSURE ALARM BIT 10 TOPUP PUMP1 FAILURE BIT 11 TOPUP PUMP2 FAILURE BIT 12 INSUFFICIENT VACUUM ALARM BIT 13 DEGASSING PUMP FAIL BIT 14 VACUUM CYLINDER HIGH PRESSURE ALARM BIT 15 TIMEOUT (DEGASSING ALARM ON PUMP TIME) BIT 16 LOW ADDITIVE ALARM

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40051 READ/WRITE 2 LANGUAGE FOR MENU AND MESSAGES DISCRETE 3=E 4=I 5=DE 6=F 7=NE
E ENGLISH F FRENCH DE GERMAN
NE DUTCH I ITALIAN
40052 READ/WRITE 2 TOPUP ACTION ENABLED DISCRETE 0=NOT ENABLE
1=ENABLE
IS UNIT SET TO TOPUP MODE
(TOPUP PRIORITY)?
40053 READ/WRITE 2 LOW PRESSURE ALARM SETPOINT ANALOG DECIMAL OF BAR (GAUGE) 40054 READ/WRITE 2 LOW PRESSURE WARNING SETPOINT ANALOG DECIMAL OF BAR (GAUGE)
40055
READ/WRITE
2
DIFFERENTIAL PRESSURE SETPOINT
ANALOG
DECIMAL OF BAR
(GAUGE)
40056 READ/WRITE 2 TOPUP SETPOINT ANALOG DECIMAL OF BAR (GAUGE)
40057
READ/WRITE
2
HIGH PRESSURE WARNING SETPOINT
ANALOG
DECIMAL OF BAR
(GAUGE)
40058 READ/WRITE 2 HIGH PRESSURE ALARM SETPOINT ANALOG DECIMAL OF BAR (GAUGE) 40059 READ/WRITE 2 FLOOD LIMIT TIMER THRESHOLD ANALOG MINUTES 40060 READ/WRITE 2 EXCESSIVE START FREQUENCY ANALOG
REQUIRED NUMBER OF STARTS IN (TIME)
TO TRIGGER AN ALARM AND CRITICAL STOP
40061 READ/WRITE 2 EXCESSIVE START TIMEFRAME ANALOG
HOURS (ZERO DISABLES THE FUNCTION)
40062 READ/WRITE 2 PHYSICAL NUMBER OF PUMPS UNIT CONFIGURATION
40063
READ/WRITE
2
PUMP TYPE
DISCRETE 8=C 9=P 10=R
8 CENTRIFUGAL 9 PISTON 10 RELAY
40064 READ/WRITE 2
PUMP MINIMUM CURRENT (ALARM SETTING)
ANALOG HUNDRED OF MA
40065 READ/WRITE 2 CURRENT SENSE ENABLED
DISCRETE 0=NOT ENABLE 1=ENABLE
ZERO DISABLES THE FUNCTION
40066 READ/WRITE 2 PERIODIC PULSE ENABLED
DISCRETE 0=NOT ENABLE 1=ENABLE
ZERO DISABLES THE FUNCTION