Daikin COMPACT L ALB Operating Manual
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Daikin COMPACT L ALB Operating Manual

Daikin COMPACT L ALB Operating Manual

Air handling unit
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COMPACT L AIR HANDLING UNIT
ALB
Original Instructions
Installation, Operation and Maintenance Manual
REV
00
Date
02/2025
Supersedes
Operating Manual
D-EOMAH03402-25_00EN
Public

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Summary of Contents for Daikin COMPACT L ALB

  • Page 1 Public Date 02/2025 Supersedes Installation, Operation and Maintenance Manual Operating Manual D-EOMAH03402-25_00EN COMPACT L AIR HANDLING UNIT Original Instructions...

  • Page 2: Table Of Contents

    Table of Contents About this document ....................3 1.1. Notice ..........................3 Safety Information ....................4 Introduction ......................5 Basic Control System Diagnostic ................5 Room Interface ......................6 3.2.1 Room Unit Interface .......................6 3.2.2 LCD ..........................7 Password ........................8 Control Functions ....................9 Dampers ........................

  • Page 3: About This Document

    ABOUT THIS DOCUMENT 1.1. Notice © 2014 Daikin Applied Europe, Cecchina, Roma. All rights reserved throughout the world. The following are trademarks or registered trademarks of their respective companies: MicroTech 4 from Daikin Applied Europe This document refers to the following components:...

  • Page 4: Safety Information

    SAFETY INFORMATION Observe all safety directions and comply with the corresponding general safety regulations in order to prevent personal injury and damage to property. • Safety devices may not be removed, bypassed or taken out of operation. • Apparatus and system components may only be used in a technically fault-free state. Faults that can affect safety must be rectified immediately.

  • Page 5: Introduction

    INTRODUCTION This operating manual provides basic information that allows the control of the Daikin Air Handling Unit (AHU). Compact L AHUs are used for air conditioning and air handling in terms of pressure and temperature level control. Basic Control System Diagnostic Unit controllers, extension modules and communication modules are equipped with two status LED, BSP and BUS, to indicate the operational status of the devices.

  • Page 6: Room Interface

    Room Interface Unit has 2 different human machine interfaces (HMI from here on), one is an 822 default, the other is POL895 or POL871, these have a lcd that can be plugged in the HMI port on controller (Th). Explanation of hot points on both is explained here down: 3.2.1 Room Unit Interface Figure 1 POL 822...

  • Page 7: Lcd

    3.2.2 Info Alarm Selector knob Esc key Figure 2 POL 895 Up key Info key Down key Alarm key Enter key Esc key Figure 3 POL 822 All HMIs except POL 822 allow navigation through the application pages, the available data can change, the LCD shows additional data to configure optional items such as BMS configuration, some of the additional values are protected with different level passwords to prevent wrong parameterizations to unauthorized users.

  • Page 8: Password

    Password Different levels of password are available in the application, at each level different parameters are accessible. Summary of password and access level in the table below Level name Level index Password End user User 5321 Maintenance 2526 To access password input page, select “Settings” from main menu as shown below: Select “Enter Password”...

  • Page 9: Control Functions

    CONTROL FUNCTIONS This section describes the main control functions available in Daikin Compact L Air Handling Units. The activation sequence of the devices installed in Daikin AHU for thermoregulation control is shown below. • On the Base Unit the fans will be free to start immediately, while if you have dampers the fans will wait for the minimum opening before starting.

  • Page 10: Dampers

    Remember to go to the "Restart required!" item after you have made all the changes to each individual menu. You can also restart with each individual change for each menu. Dampers 4.1.1 Base Unit 4.1.2 Outdoor and Exhaust air dampers Which allows exclusion of AHU from direct and coming from outdoor ducts.

  • Page 11: Supply And Return Air Dampers

    4.1.3 Supply and Return air dampers. Which allows the exclusion of AHU from direct and coming from indoor ducts. Connect Shutoff Damper on pin X2.2 on terminal Y. Coils 4.2.1 Base Unit 4.2.2 External Pre-heating coil This Coil can be either Electric or Water, it is used to raise the inlet temperature of the AHU before the heat recovers. Enable coil on Unit Configuration D-EOMAH03402-25_00EN 11/46...
  • Page 12 Select coil type on Config. Components When selecting Electric Pre-heat, you need to install the additional Outdoor temperature sensor on the duct before the Pre-heat coil D-EOMAH03402-25_00EN 12/46...

  • Page 13: Main Coil Dx Or Water

    Main coil DX or Water Enable coil on Unit Configuration Select coil type on Config. Components. For DX solution, it provides the installation of our ERQ, maximum one circuit. D-EOMAH03402-25_00EN 13/46...

  • Page 14: Water Main Coil

    Choose the EKE box kind from the config. components 4.3.1 Water main coil For the water solution through the software, you can decide whether to have a heat only, cool only or a combined water coil. Select coil type on Unit Configuration Select coil function on Config.

  • Page 15: Post Heating 1 Coil

    These coils are used to treat the air and reach the temperature setpoint. 4.3.2 Post Heating 1 Coil Enabled Post heating 1 coil on Unit Configuration Select coil Function on Config. Function Select the type of internal coil installed. D-EOMAH03402-25_00EN 15/46...

  • Page 16: Post-Heating Coil

    POST-HEATING COIL It can be either Electric or Water coil, the Electric one is a duct coil mounted externally to the AHU and can only be a Post-heating coil, while the Water coil is mounted internally to the unit on the slides just after the supply fan (Attention! If you install the water coil you cannot install the Supply filter) and can be used either as a Post or Heat water coil if you have provided a main cold water only coil.

  • Page 17: Filters

    Filters 5.2.1 Base Unit Outdoor and/or return pre-filters can be added to the unit. However, a pressure transducer is required to monitor the pressure differential and trigger an alarm if necessary. 5.2.2 Outdoor air Pre-filter If the Outdoor Pre-filter is available, a pressure transducer should be connected to pin X1A on terminal Y 5.2.3 Return air Filter.

  • Page 18: Optional Pol955 A/B (Options)

    Optional POL955 A/B (OPTIONs) The optional POL955 A/B are used to manage some components that can be added to the unit configuration. The Components in POL955 A are: POL955 OPTION A Error status X4A on -X R32 Alarm X5A on -X Defrost X6A on -X EKEA...

  • Page 19: Return Air Humidity

    5.3.1 Return air humidity If available, connect the Return Humidity probe to pin X3A on terminal X 5.3.2 CO2 probe If available, connect the CO2 probe to pin X2A on terminal X Optional POL955 B OPTION The Components in POL955 B are: POL955 OPTION B Outdoor Air Temperature X1B on -Y...

  • Page 20: Outdoor Air Humidity

    5.4.1 Outdoor air humidity If available, connect the Outdoor Humidity probe to pin X2B on terminal X 5.4.2 Supply air humidity If available, connect the Supply Humidity probe to pin X3B on terminal X D-EOMAH03402-25_00EN 20/46...

  • Page 21: Main Menu Screen

    MAIN MENU SCREEN The unit is sold without its own on-board interface. the parameters can be accessed in various ways, via web interface if the unit is connected to the network, via Pol 895 with which you have the possibility to access the various menus of the AHU depending on the password entered and with Pol 822 which it only allows you to read the temperature of the environment where it is installed, turn the AHU ON/OFF, change the temperature set point and change the hot/cold status of the unit (if set by the HMI on the control).

  • Page 22: Actual Status

    ACTUAL STATUS This item displays the actual status of the AHU. All possible statuses are reported in the table below. HMI Path: Main page -> Actual status Main Menu item Value Description − Actual status Off by fire alarm Off by fire alarm: Off by alarm Highest priority alarm, the unit is switched off immediately.

  • Page 23: Mode

    MODE This item displays the mode of the AHU. the possible mode are cool or heat. D-EOMAH03402-25_00EN 23/46...

  • Page 24: Supply/Return Temp

    SUPPLY/RETURN TEMP This item (read-only) displays the actual average supply air temperature value used to regulate the AHU. HMI Path: Main page -> Supply temp The probe will monitor the temperature value, and the system will use the temperature to ensure the setpoint is maintained.

  • Page 25: Hmi Switch

    10 HMI SWITCH This item displays and allows you to set the status of the AHU. HMI Path: Main Menu -> HMI Switch D-EOMAH03402-25_00EN 25/46...

  • Page 26: Input/Output

    11 INPUT/OUTPUT This menu (read-only) allow to access submenus of read values throughout the application. HMI Path: Main Menu -> Input/Output Selecting “Input/Output” a menu shows the access to sub menus dedicated to different signals of the system as explained below: Select “Analog Inputs”...
  • Page 27 D-EOMAH03402-25_00EN 27/46...
  • Page 28 Select “Analog Outputs” to show coil and fans values. When you enable the components the various sections will be created, scroll to view all. Select “Digital Inputs” to show alarms and switch status. D-EOMAH03402-25_00EN 28/46...
  • Page 29 Scroll down to show remaining values. Select “Digital Outputs” to show command and switch. When you enable the components, the various sections will be created, scroll to view all. D-EOMAH03402-25_00EN 29/46...

  • Page 30: Setpoint

    12 SETPOINT This menu allows the user to access all setpoints used to control AHU. HMI Path: Main Menu -> Setpoints Selecting “Setpoints” a page allows to change all setpoints values, used by the system to target regulation algorithm. This setpoint is used to regulate the treatment system modulation by a PI algo using supply/return temperature as feedback.
  • Page 31 When adjusting on the return temperature we need to set the desired temperature on the Main cool or Main heat item after which we need to set the threshold below which we do not want to go in case of Cool (supply min) on the supply temperature and the threshold above which we do not want to go in case of Heat (supply max) also on the supply temperature.
  • Page 32 These setpoints are used to set air flow or pressure you want for the environment and keep the fan as stable as possible. Set both air flow. This setpoint is used to set the pressure you want for the environment and keep the fan as stable as possible. Attention! to set the pressure you must change the tubes configuration on the supply and return Fans of base unit as per the instructions.
  • Page 33 This setpoint is used to set the pressure difference you want to report on each activated filter. The first is just a warning, the second is a fault that stopped the AHU. D-EOMAH03402-25_00EN 33/46...

  • Page 34: Settings

    13 SETTINGS This menu, up to the password level, allows the user to access submenus for communication channels. HMI Path: Main Menu -> Setting Selecting settings and log with needed password to access different menu as show below: Menu with User level password. Menu with Maintenance level password.
  • Page 35 Select “Communication” to access different channel parametrization. Select “IP-Config.” to access configuration of IP address of the control system. Select “DHCP” to enable or disable the service. D-EOMAH03402-25_00EN 35/46...
  • Page 36 In the presence of a connected module, specific menu will appear to allow parametrization (communication setting) of every single module installed. From Settings you can enter to Service where you can access several services as • Daikin On Site • Main regulation •...
  • Page 37 HMI Path: Main Menu -> Service • Daikin On Site Select “Daikin On Site” to access cloud connection if available. D-EOMAH03402-25_00EN 37/46...
  • Page 38 • Main Regulation Select “Main Regulation” to adjust the loop timing of some features. • Language Selection Select “Language Selection” to change language of HMI if available. D-EOMAH03402-25_00EN 38/46...
  • Page 39 • Cool/Heat kind Select “Cool/Heat kind” to access menu. Select the season change input mode. • Enabling BMS Select “Enable BMS” to access menu that Allow to enable or disable BMS functionality (Off / On of the unit). from emote). •...
  • Page 40 D-EOMAH03402-25_00EN 40/46...

  • Page 41: About Unit

    14 ABOUT UNIT This menu allows users to access pages with information about unit software. HMI Path: Main Menu -> About unit This page shows useful information to note while contacting service in case of need. Single information is explained below: “Serial Nr”...
  • Page 42 “BSP” shows the release of the operating system running on the unit control system. “Act IP” show the actual IP address of the control system board. D-EOMAH03402-25_00EN 42/46...

  • Page 43: Alarm

    15 ALARM 15.1 Alarm list Alarms Class High Limit Low Limit Type Name PreHeating electrical alarm Combine pump alarm ERQ alarm Humidifier alarm Fire alarm Post heathing pump alarm Post Heathing electrical alarm Outdoor temperature 80 °C - 20 °C Outdoor temperature optional 80 °C - 20 °C...

  • Page 44: Alarm Reset

    15.2 Alarm Reset This menu allows the user to reset alarms once the problem is fixed. HMI Path: Main Menu -> Red blinking bell This page shows everything about the alarms and allows reset once the problem is fixed. To access the reset, you must enter one of the passwords described in the previous chapters. Select “Alarm list”...
  • Page 45 If the problem has been solved the alarm will disappear from the list. Select "Alarm history" to view the list of actions taken for each alarm. Scroll to view all list. D-EOMAH03402-25_00EN 45/46...
  • Page 46 The present publication is drawn up by of information only and does not constitute an offer binding upon Daikin Applied Europe S.p.A. Daikin Applied Europe S.p.A. has compiled the content of this publication to the best of its knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content, and the products and services presented therein.

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