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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

FC2

FC3

RS4

Operation manual

Rooftop Packaged Unit

English

Содержание R-32 rooftop Series

Страница 1: ...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 FC2 FC3 RS4 Operation manual Rooftop Packa...

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Страница 3: ...g the date and time 8 2 7 Setting of time bands 9 3 Graphics on the display 10 3 1 Graphic conventions 10 3 1 1 Icons and symbols 10 4 The screens 12 4 1 Screen tree 12 4 1 1 Screen menu 13 4 2 Menu b...

Страница 4: ...ication 29 5 7 Power supply control 30 5 7 1 Phase sequence 30 5 7 2 Min Max voltage 30 5 7 3 Fast Restart 30 5 8 Damper management 31 5 8 1 Damper control 32 5 8 2 Damper management 32 5 8 3 Unit sta...

Страница 5: ...c pCO controller functions The software application for the electronic microprocessor controller series c pCO was designed to manage Rooftop units Through appropriate configuration this gives the pos...

Страница 6: ...unit from running to off and vice versa 2 2 2 Switch the unit on and off from external OK signal In order to switch the unit on and off from external OK signal make sure the feature is active To switc...

Страница 7: ...reen tick to confirm Units featuring mode switching have a setpoint for cooling ST7 and a setpoint for heating STH7 The setpoint for cooling ST7 must necessarily be higher than the setpoint for heatin...

Страница 8: ...and time Scroll the main menu until you find the Configurations group and select it Select Date and Time in the Configurations menu and access the screen where it is possible to edit the date and time...

Страница 9: ...ere 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 A...

Страница 10: ...ves access to the screen used to switch the unit on or off from the user interface Cold Heat This icon gives access to the screen where the unit operating mode is switched from cooling to heating usin...

Страница 11: ...it is when the symbol is coloured this symbol indicates the heating function When it is grey the heating unit is not operational and it is when the symbol is coloured this symbol indicates the humidi...

Страница 12: ...hich are broken down in one main menu and various sub menus A tree diagram of the screens is provided below to help the user browse and easily locate the screens of the user interface Setpoint Unit Ve...

Страница 13: ...atured 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...

Страница 14: ...on the Menu icon brings back to a higher level Parameter screens show editable parameters with white wording and view only parameters with cyan wording A click on white parameters calls up the relevan...

Страница 15: ...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 acco...

Страница 16: ...el then tick to confirm Confirm the password tapping the green arrow icon button on the bottom right hand side User password is 100 Service password is 4321 If the entered password is correct the padl...

Страница 17: ...s describe all the functions managed by the software ranging from ordinary functions featured in all units to functions dedicated to specific versions or models Some of the functions described here ma...

Страница 18: ...variation of the setpoint must be within the corresponding limits Parameter SD2 is used to set the operating mode in which setpoint variation is enabled There is only one function available and this i...

Страница 19: ...ges in cooling mode Where Text is the value of the external air temperature When this function is enabled the setpoint value that the controller uses to manage the air temperature in cooling mode is a...

Страница 20: ...SD20 SD22 0 STH1 SD22 Fig 2 Change in setpoint as the air temperature changes in heating mode Where Text is the value of the external air temperature When this function is enabled the setpoint value...

Страница 21: ...T1 Fig 3 Graphical representation of temperature control devices Parameter Min Max UM Description ST1 ST2 ST3 C Mechanical cooling Temperature setpoint ST4 0 0 25 0 C Proportional control Cooling Acti...

Страница 22: ...ted the controller uses it to enable the resources and at the same time monitor the air temperature in the delivery line In PID control mode the controller activates the available resources as the dem...

Страница 23: ...olved in cascade temperature control are shown in the table The values of the parameters are representative In specific cases different values can be set Parameter Value UM Description ST42 24 0 C Cas...

Страница 24: ...demand increases The controller calculates the demand and checks the value measured by the probe against the setpoint value and according to its variation over time using the parameters set in the PI...

Страница 25: ...ameter Value UM Description ST42 24 0 C Cascade control Unit setpoint STH46 0 5 C Mechanical heating Cascade control Mode switching offset STH47 4 0 C Mechanical heating Cascade control Operating diff...

Страница 26: ...low external air temperature STH124 50 0 C Auxiliary heating Deactivation threshold for high external air temperature Heating generated using the refrigerant circuit is disabled when the external air...

Страница 27: ...and de humidification 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 The diagram below shows the...

Страница 28: ...idity 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 that de...

Страница 29: ...This function is enabled on the web page Access to this page requires the operator to log in with a Service level password If the humidifier is producing steam enabling of the function causes steam p...

Страница 30: ...unit to make the connection correctly The alarm is cleared as soon as the unit is switched on again 5 7 2 Min Max voltage The controller is designed to manage potential conditions where the variation...

Страница 31: ...amper for recycled air Normally the external air damper opens at the same percentage as the exhaust air damper and the recycled air damper is complementary to the other two So the percentage opening o...

Страница 32: ...the required opening percentage Proportional control is designed to open the dampers so that the air can flow i e at the required percentage of the max possible opening All units featuring dampers are...

Страница 33: ...52 is set to 3 a washing cycle is performed before recycling While recycling is in progress the controller keeps the exhaust air and external air dampers closed and it keeps the recycled air damper op...

Страница 34: ...cription STH57 0 1 Auxiliary heating Summer oper Type of temperature control STH58 10 0 35 0 C Auxiliary heating Summer oper Setpoint STH59 0 0 25 0 C Auxiliary heating Summer oper Proportional Temper...

Страница 35: ...ves as post heating during the dehumidification cycle winter operation only in which case it serves either as single source if the refrigerant circuit does not feature cycle reversal or as an integrat...

Страница 36: ...Unit switch off Friday ES23 0 15 Unit switch off Saturday ES24 0 15 Unit switch off Sunday ES26 0 144 h Time band 4 Start ES27 0 144 h Time band 4 End ES31 0 15 Heating mode activation Monday ES32 0 1...

Страница 37: ...High temperature alarm of supply air AL6 Circuit 1 High pressure alarm from pressure switch AL31 Low temperature alarm of supply air AL7 Circuit 2 High pressure alarm from pressure switch AL32 Temper...

Страница 38: ...2 Low superheat alarm AL80 Probe error alarm External air temperature AL183 Cooling setpoint lower than heating setpoint AL91 Probe error alarm Mixed air temperature AL184 Circuit 1 Defrost ended for...

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