Table of Contents
Related Manuals for Daikin R-32 rooftop Series
Summary of Contents for Daikin R-32 rooftop Series
- Page 1 Operation manual Rooftop Packaged Unit R-32 rooftop series – Base, 2-,3- and 4-damper versions Made-To-Stock models UATYA-BBY1 UATYA-BBC2Y1 UATYA-BBC3Y1 Made-To-Order models BASE Operation manual English Rooftop Packaged Unit...
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Page 3: Table Of Contents
Contents Introduction General 1.1.1 c.pCO controller functions Quick commissioning Main functions Switching the unit on and off 2.2.1 Switch the unit on and off from the display. 2.2.2 Switch the unit on and off from external OK signal 2.2.3 Switch the unit on and off from the BMS Change of set points 2.3.1 Setpoint editing from display... - Page 4 5.5.1 Ancillary built-in humidifier functions Air dehumidification Power supply control 5.7.1 Phase sequence 5.7.2 Min. / Max. voltage 5.7.3 Fast Restart Damper management 5.8.1 Damper control 5.8.2 Damper management 5.8.3 Unit start-up 5.8.4 Washing 5.8.5 Recycling Auxiliary heating 5.9.1 Controlled devices 5.9.2 Post heating 5.9.3...
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Page 5: Introduction
INTRODUCTION 1.1 General Some information on the use of this manual. The purpose of this manual is to provide all the necessary information for the use of the controller and relevant software application in the units indicated on the cover. Information regarding installation of the units and relevant tests and checks for the first starting is not given in this manual. -
Page 6: Quick Commissioning
QUICK COMMISSIONING 2.1 Main functions The necessary instructions for working on the controller, with regard to the main functions of the unit, are given below. 2.2 Switching the unit on and off 2.2.1 Switch the unit on and off from the display. Use the “On/Off” icon on the main screen to go to the page where the buttons to start and stop the unit are featured. The top area of the screen shows the status of the unit: the “On/Off”... -
Page 7: Change Of Set Points
2.3 Change of set points 2.3.1 Setpoint editing from display Go to the main menu and press “Setpoint” to access the screens where functions are displayed whose setpoints need to be managed. Go to the “Setpoint” sub menu and select the function whose setpoint is to be changed. Scroll the parameters until the desired parameter setpoint is achieved. -
Page 8: Change Language
2.5 Change language When in the main menu, press “Languages” to access the screens in which the available languages are displayed. If the language you are looking for is not in the screen, use the arrows to find it. The selected language becomes active as soon as it is selected. 2.6 Changing the date and time Scroll the main menu until you find the “Configurations”... -
Page 9: Setting Of Time Bands
2.7 Setting of time bands Access to the screen where the time bands are set up requires entry of a password. Scroll the main menu until you find the “Parameters” group and select it. Scroll the “Parameters” menu until you find the “ES Energy saving” group. After selecting “ES Energy saving”, access is gained to the group of parameters used to set up the time bands. -
Page 10: Graphics On The Display
GRAPHICS ON THE DISPLAY During development of the application, particular attention was given to intuitive use of the user interface. 3.1 Graphic conventions The touch-screen display is designed to browse the interface. Provision has been made for some intuitive icon buttons that are tapped to easily browse the featured screens and menus. - Page 11 This icon appears in the “login” screen after entering the “password”.A click on this icon confirms the entered “password”. This icon appears in the “login” screen and it is accessed with the correct credentials.A click on this icon enables moving back to the “loop” of the previous menu, gaining access to it with the active credentials. Some symbols help easily understand the functions featured in the unit and their status.
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Page 12: The Screens
THE SCREENS The user interface gives access to all information and setup parameters relating to unit operation. The manual describes the access procedure to the desired information and to the parameter pages where the various functions can be set up. 4.1 Screen tree The user interface gives access to all information and setup parameters relating to unit operation. -
Page 13: Screen Menu
4.1.1 Screen menu A click on the “Menu” button in the home page gives access to the main menu. The arrow icon buttons featured in the main menu are used to scroll all lower level menus. Access to lower level menus is allowed based on the user’s credentials. Some users have free access, while others have to log in with the profile they are accredited for. -
Page 14: Menu Browsing
4.2 Menu browsing The screen tree helps the operator to browse the menus. Some other suggestions are given to help use the icon buttons to browse the screens. The home page is the starting point. Refer to the chapter titled “Graphic Conventions” for the interpretation and use of the icon buttons. In addition to the “On/Off”... -
Page 15: Synoptic Panel
4.2.3 Synoptic panel The “Synoptic Panel” icon gives access to the corresponding menu. The synoptic panel is designed to show an overview of the operating status and of the main parameters. Screens vary according to the features of each unit. The “Info”... -
Page 16: Login
4.2.4 Login The user must log in with his own profile in order to access reserved menus and to edit the featured parameters. Below is the login procedure. - Select the access level corresponding to the given credentials. - Click “password” and enter the value corresponding to the given access level, then tick to confirm. - Confirm the password tapping the green arrow icon button on the bottom right-hand side. -
Page 17: Software Functions
SOFTWARE FUNCTIONS 5.1 Introduction For management of the units, special software is loaded into the controller. The software consists of a combination of functions dedicated to the conditions in which the units may have to work. The following chapters describe all the functions managed by the software, ranging from ordinary functions featured in all units to functions dedicated to specific versions or models. -
Page 18: Set Point Management
5.2 Set point management The control setpoint mainly depends on parameters “ST1” and “STH1”. The relevant settable minimum and maximum setpoint parameters are shown below. Parameter Description °C Mechanical cooling - Temperature setpoint Mechanical heating / Auxiliary heating in winter mode - Temperature STH1 STH2 STH3... -
Page 19: Dynamic Setpoint From External Air Probe In Cooling Mode
5.2.2 Dynamic setpoint from external air probe in cooling mode The setpoint value entered in parameter “ST1” is “compensated” against the external air temperature. The parameters concerned are shown in the table. The values of the parameters are representative. In specific cases, different values can be set. Parameter Value Description 27.0... -
Page 20: Dynamic Setpoint From External Air Probe In Heating Mode
5.2.3 Dynamic setpoint from external air probe in heating mode The setpoint value entered in parameter “STH1” is “compensated” against the external air temperature. The parameters concerned are shown in the table. The values of the parameters are representative. In specific cases, different values can be set. Parameter Value Description STH1... -
Page 21: Temperature Control
5.3 Temperature control Cooling and heating devices are controlled according to the temperature value measured by a reference probe. The proportional band identifies the control range of the air conditioner system and it can be set up with independent values for heating and cooling mode. The dead zone identifies the range around the setpoint within which the devices are not enabled (it is used to prevent oscillations in the setup value). -
Page 22: Thermoregulation In Cooling Mode
The values set in parameters “ST9” for cooling and “STH9” for heating determine the control probe type, as follows: - 0 = temperature probe on air delivery line; - 1 = temperature probe on air return line; The values set in parameters “ST11” for cooling and “STH11” for heating determine the type of temperature control, as follows: - 0 = proportional. - Page 23 “cascade” temperature control. If parameter “ST11” is set to “1”, “Cascade” control is enabled. This function fulfils the system demand and keeps the air temperature in the delivery line within comfort values. For this purpose, a virtual setpoint is calculated from the stored setpoint, as corrected with the air temperature in the return line.
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Page 24: Thermoregulation In Heating Mode
5.3.2 Thermoregulation in heating mode The thermoregulation of the unit in heating mode depends on parameter “STH9”, which identifies the reference probe for the temperature value in the setpoint (parameter “STH1”), and on parameter “STH11” which determines the type of temperature control. In proportional control mode, the controller activates the available resources as the value read by the reference probe decreases in comparison to the setpoint value. - Page 25 Temperature monitoring with Cascade control If parameter “ST11” is set to “1”, “Cascade” control is enabled. This function fulfils the system demand and keeps the air temperature in the delivery line within comfort values. For this purpose, a virtual setpoint is calculated from the stored setpoint, as corrected with the air temperature in the return line.
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Page 26: Disabling Heating Sources Depending On External Air Temperature
5.3.3 Disabling heating sources depending on external air temperature The value of the external air temperature is used as reference to disable the heating sources in the unit. The heating sources are disabled when the temperature is either high or low. The parameters involved are shown in the table. The values of the parameters are representative. -
Page 27: Humidity Control
5.4 humidity control Humidity control devices are managed according to the value measured by the reference probe. The measured value is compared with the desired value (setpoint), after which the system calculates the difference between these values and then enables the most suitable devices based on this difference. The proportional band identifies the control range of the air conditioner system and it is set up with the same values for both humidification and de-humidification. -
Page 28: Relative Humidity Control With Proportional Control
The value set in parameter “HU11” identifies the reference humidity value, as follows: - 0 = relative humidity; - 1 = absolute humidity. 5.4.1 Relative humidity control with proportional control If parameter “HU11” is set to “0”, humidity control is performed according to the relative humidity value. Relative humidity is managed according to parameter “HU14”, which identifies the probe on which the controller must guarantee maintenance of the entered setpoint, and on parameter “HU12”... -
Page 29: Air Humidification
5.5 Air humidification The controller can manage air humidification using a built-in humidifier in the unit. The controller is set up at the factory with all the parameters required to control the installed humidifier. 5.5.1 Ancillary built-in humidifier functions Humidifier control includes some ancillary functions, a description of which is given below. 5.5.1.1 Manual water drain The manual water drain function is designed to fully empty the cylinder in the humidifier. -
Page 30: Power Supply Control
5.7 Power supply control Units may be supplied with devices for protection against incorrect connections of the phase sequence or voltage variations outside the required limits during operation. Protections consist in relays which output an alarm signal to one digital input in the controller through an electric contact (the digital input concerned is shown in the wiring diagram). -
Page 31: Damper Management
5.8 Damper management In addition to air change in the room, the controller can also manage other functions connected to comfort enhancement and system economy. The functions the controller can handle vary according to the number of dampers fitted in the unit: - units with 2 dampers, for air change only;... -
Page 32: Damper Control
5.8.1 Damper control The controller can control the dampers in two different ways: “standard” and “adaptive”. When dampers are required to stay in a fixed position, for instance to provide for the correct flow of fresh air, system conditions may exist in which the damper signal cannot guarantee the desired air percentage. 5.8.1.1 Standard control Standard control requires that the dampers stay in their position irrespective of the actual fresh air percentage. -
Page 33: Recycling
5.8.5 Recycling Full air recycling at system start-up or after a washing cycle is intended to achieve the temperature and humidity setpoints more quickly. If air recycling only is required at unit start-up, parameter “DA52” must be set to “2”. If parameter “DA52”... -
Page 34: Auxiliary Heating
5.9 Auxiliary heating In addition to the heating effect achieved using the refrigerant circuit, the controller can handle other sources of heating such as electric heaters and a hot water coil with an OK signal to a boiler or a burner. The logic featured in the controller is set up at the factory, based on the unit configuration. -
Page 35: Controlled Devices
5.9.1 Controlled devices The controller controls the devices installed in the unit, which may include: - electrical heaters, divided by either one or two power steps; - a hot water coil, with an analogue signal to control opening of a valve and a digital OK signal to control a pump that gets started as soon as the valve opens. -
Page 36: Activation According To Time Bands
5.9.3 Activation according to time bands The unit may be managed automatically according to time bands. The time band management logic is designed to stop the unit, to edit the setpoint and to switch among operating modes. The parameters concerned are shown in the table. Parameter Description Time band 1 - Start... -
Page 37: Introduction
5.1 Introduction The controller is programmed to manage the components of the unit safely, by adjusting their operation as conditions change with the aim of maintaining uninterrupted service. Within the scope of this control function, the controller will partially or completely limit operation of the unit when hazardous conditions are approaching. - Page 38 Code Description Code Description Probe error alarm - Circuit 1 - Compressor 1 - Circuit 1 - Low pressure alarm from pressure AL61 AL136 Discharge temperature switch Probe error alarm - Circuit 2 - Compressor 1 - Circuit 2 - Low pressure alarm from pressure AL62 AL137 Discharge temperature...
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