Armstrong 3750 Installation And Operating Instructions Manual
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Armstrong 3750 Installation And Operating Instructions Manual

Pulpress pressurisation unit
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3750 Pulpress
Pressurisation
unit
Installation and
operating instructions
File No: 37.856iec
Date: may 19, 2020
Supersedes: 37.856iec
Date: november 28, 2019

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  • Page 1 3750 Pulpress Pressurisation unit Installation and operating instructions File No: 37.856iec Date: may 19, 2020 Supersedes: 37.856iec Date: november 28, 2019...

  • Page 3: Table Of Contents

    (twin system only) Armstrong Pressurisation Unit Controllers are completely factory-assembled, tested and shipped to the job site as integral units ready to receive incoming power supply. These instructions describe the procedures to be followed during installation, commissioning and operation to ensure...

  • Page 4: Ce Conformities

    & 3750 Pulpress o pera t in g in str ucti on s Pressurisation unit ce conformities 4 .0 warning symbols Safety instruction where an electrical hazard is bs en 61 0 1 0 -1 involved.

  • Page 5: Typical Chilled Water Sealed System

    3750 Pulpress i nsta l l a ti o n & o p era t i n g i nstru cti o ns Pressurisation unit typical chilled water sealed system air eliminator see leaflet on air eliminators elecrical supply cooling load return flow...

  • Page 6: Typical Mthw Sealed System Max. 120°C

    13 .0 gener al notes pre-charge pressure of 4 bar. If the unit is not being commissioned by Armstrong please make sure the vessel 1 The sets comprise one or two pumps operating on a is charged to the correct pressure.

  • Page 7: Electrical

    3750 Pulpress i nsta l l a ti o n & o p era t i n g i nstru cti o ns Pressurisation unit 6 Never dry run the pump. relays), multiple protective earthing or earth- RCDs elcb ing can be used as extra protection, provided that local 7 For wall mounting, wall structure will need to be deter- safety regulations are complied with.

  • Page 8: Controller Functions

    & 3750 Pulpress o pera t in g in str ucti on s Pressurisation unit notes If the system leakage continues causing a drop in pressure below the initial system pressure the pump(s) will start to On chiller sets, the highest system pressure will occur when restore the initial system pressure.

  • Page 9: Operation Screens

    Navigator button that allows changing the 3750 to Remote or Local. Local- Local will turn on the system immediately. Remote Remote causes the 3750 to follow the ba s signal (Serial communication) to turn on or off Navigates to Setup screen. Access to Setup Setup...

  • Page 10: Pump Control Screen

    21.1.5 support information This screen show support information data Displays email id for requesting a support E-mail id for 3750 unit or any other clarifications Indicates current version of control soft- Sw Ver ware installed into controller OS Ver Indicates os installed into controller...

  • Page 11: Alarms

    3750 Pulpress i nsta l l a ti o n & o p era t i n g i nstru cti o ns Pressurisation unit alarms description 21.1.7 alarm screen This screen allows user view and reset alarms data Alarms will be displayed based on priority Alarms shown in alarm section below.

  • Page 12: Pump Setup - 2 (Twin System Only)

    & 3750 Pulpress operat ing in structions Pressurisation unit 21. 2 .3 pump setup – 2 description This screen allows user to access extended Pump Setup buttons Allows user to change excessive number Ex. No. of Start of starts in a desired amount of time.

  • Page 13: Pressure Setup (Twin System Only)

    3750 Pulpress i nsta l l a ti o n & o p era t i n g i nstru cti o ns Pressurisation unit 21.2.6 pressure setup (twin system only ) description This screen allows user to access Pressure Setup buttons Ex.No of...

  • Page 14: Password Screen

    & 3750 Pulpress o pera t in g in str ucti on s Pressurisation unit 21. 2 .9 password screen data Password Allows user to Enable/Disable the Protection Password protection. 21. 2 .10 valve setup (twin system only )
  • Page 15 3750 Pulpress i nsta l l a ti o n & o p era t i n g i nstru cti o ns Pressurisation unit twin system par ameters par ameter default ma x unit of measure Number of Pumps Numeric System-1 Excessive No.

  • Page 16: Warnings And Alarms

    & 3750 Pulpress o pera t in g in str ucti on s Pressurisation unit 23 .0 warnings and alarms 23 . 2 low system pressure The low system pressure alarm will be activated when the...

  • Page 17: Pump 2 Tripped

    3750 Pulpress i nsta l l a ti o n & o p era t i n g i nstru cti o ns Pressurisation unit 23 .5 pump 1 tripped 23 .8 ma ximum pump run time The maximum pump run time alarm will be activated if the...

  • Page 18: Offline Alarm

    This is not an alarm and does not indicate a system or unit fault, but will continue to be displayed until the unit receives a service from an Armstrong Service Engineer or a registered Armstrong Service provider. Call Armstrong service to arrange service Visit.

  • Page 19: Alarm List

    Pump 2 Tripped (PF2) only man Service Reminder (ser) - When Commissioned, date for service Service reminder reminder will be set. Armstrong service team can reset after only man new. Device offline alarm - If the communication is lost between...

  • Page 20: Maintenance Check

    Service Reminder(ser) - When Commissioned, date for service Service Reminder reminder will be set. Armstrong service team can reset after only man new. Device 2 Offline - If the communication is lost between cPCO-...

  • Page 21: Fault Finding Chart

    Incoming water pres- data on display nameplate). With Fill setting set too high sure is not sufficient Consult Armstrong Service Dept. pressure (pi) on data plate. To reset consult Armstrong Service Dept. alarm Check the pumps for presence of air and...

  • Page 22: Building Automation System (Single System) - Modbus Rtu

    & 3750 Pulpress o pera t in g in str ucti on s Pressurisation unit Building Automation System (Single System) – Modbus RTU modbus signal data read/ description r ange units address t ype t ype...

  • Page 23: Building Automation System (Single System) - Bacnet Ms/Tp

    3750 Pulpress i nsta l l a ti o n & o p era t i n g i nstru cti o ns Pressurisation unit Building Automation System (Single System) – BACnet MS/TP bacnet signal data read/ description r ange...

  • Page 24: Building Automation System (Twin System) - Modbus Rtu

    & 3750 Pulpress o pera t in g in str ucti on s Pressurisation unit Building Automation System (Twin System) – Modbus RTU modbus signal data read/ write description r ange units address t ype t ype...

  • Page 25: Building Automation System (Twin System) - Bacnet Ms/Tp

    3750 Pulpress i nsta l l a ti o n & o p era t i n g i nstru cti o ns Pressurisation unit modbus signal data read/ write description r ange units address t ype t ype Digital...
  • Page 26 & 3750 Pulpress o pera t in g in str ucti on s Pressurisation unit bacnet signal data read/ write description r ange units address t ype t ype 0 to System 1 Pressure Transducer Analog...
  • Page 27 3750 Pulpress i nsta l l a ti o n & o p era t i n g i nstru cti o ns Pressurisation unit...
  • Page 28 t o r o n t o 23 bertrand avenue toronto, ontario canada, m1l 2p3 +1 416 755 2291 b u f f a l o 93 east avenue north tonawanda, new york u.s.a., 14120 -6594 +1 716 693 8813 b i r m i n g h a m heywood wharf, mucklow hill halesowen, west midlands...

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