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enteliZONE Sequence of Operations

Page 62 of 84

eZFC-424R4-24 Application Guide

Edition 2.6

The heating or cooling output is limited by the discharge air limited controller that maintains a

maximum limit above the CurrentHeatSetPoint (AV800) in heating, and a minimum limit below the

CurrentCoolSetpoint (AV801) during cooling. The maximum limit is calculated by adding the

discharge air temperature high limit setpoint differential (DATHiLimitSetpointDiff) to the

CurrentHeatSetPoint, and the minimum limit is calculated by subtracting the discharge air

temperature low limit setpoint differential from the CurrentCoolSetpoint.

Limiting the ducted heating and cooling stages ensures the temperature differential between space

air and supply air is not large enough to cause hot air to build up near the ceiling. Limiting heating

and cooling outputs also encourages cold air to spread out via the diffuser and mix well with the

room air. Cold air that drops down without mixing can create complaints of cold drafts.

Fan (Fancoil)

The section describes the supply fan sequences supported by the fan coil algorithm for duct heating

and cooling.

Duct heat or cooling will only be enabled in the algorithm when a supply fan has been

configured.

Manual Fan Speed Control

The algorithm allows you to manually change the fan speed when you set up a fan speed control

switch as an input or on your network sensor.

In both manual and automatic fan speed control, when you switch between fan stages, there is a 1-

second delay where the prior stage turns off before the next stage can turn on.

If the fan is turned off while in manual mode, when the space temperature falls outside of the

unoccupied setpoints, the algorithm will override the fan to prevent temperature extremes.

Automatic Fan Speed Control

When there is no manual fan speed control switch configured, the algorithm assumes automatic

fan speed control. In automatic fan speed mode, the occupancy state of the space, heat/cool

demand and the constant fan mode statuses determine when a fan runs and its speed: the

algorithm can either run the fan continuously, or intermittently (runs only when there is a heat or

cooling demand). For a fuller description of the various constant fan modes, see the

fan coil set up

procedure

Run the fan continuously if you want the fan coil to provide both ventilation and temperature control.

If the fan coil does not provide ventilation, then running the fan intermittently will save energy. While

the fan is in constant mode:

Содержание eZFC-424R4-24

Страница 1: ...eZFC 424R4 24 Application Guide Edition 2 6...

Страница 2: ...ce Addressing 10 About the enteliZONE ORCAview Configuration Graphic 11 Downloading the ORCAview Configuration Graphic 11 Installing the ORCAview Configuration Graphic 11 Opening the ORCAview Configur...

Страница 3: ...9 Relationship Between Algorithm Unit Modules 20 General Tab 22 What is the General Tab 22 Device Information 22 Network Settings 23 Global Settings 24 Local Inputs Tab 26 Setting Up a Hardwired Tempe...

Страница 4: ...Damper Output 38 Set Up a Damper Output 38 LINKnet I O Tab 39 Configuring an eZNS T100 Network Sensor 39 Set Up the Temperature Sensor 39 Set Up the Humidity Sensor 40 Set Up the CO2 Sensor 40 Set Up...

Страница 5: ...Setpoint 51 Unoccupied Heating Setpoint UnOccHeatingSetpoint 51 Occupied Cooling Setpoint OccCoolingSetpoint 51 Unoccupied Cooling Setpoint UnOccCoolingSetpoint 51 Occupied Setpoint Offset Range OccSe...

Страница 6: ...mand Limit Clg Demand Limit 54 enteliZONE Sequence of Operations 55 Introduction 55 Setpoint Control 55 Setpoint Range Limits 55 Occupancy Modes 56 Switching Between Occupancy Modes 57 Setpoints and O...

Страница 7: ...ntroduction 73 Input Configuration Objects 73 Occupancy Configuration Objects 75 Output Configuration Objects 76 Setpoint Configuration Objects 77 Device Instance BACnet Address Object 79 Control Type...

Страница 8: ...s Delta Partners may print PDF documents for their own internal use or for use by their customers Authorized Delta Partners may engage a printing or copying company to produce copies of released PDF d...

Страница 9: ...WEB 4 1 and higher to access the configuration graphic About This Guide This application guide introduces the controller and describes the differences between the configurable and programmable models...

Страница 10: ...e unlocked in order to configure the controller If the controller is in a locked state a message is displayed asking the user to unlock the controller To unlock the controller in ORCAview 1 In the Nav...

Страница 11: ...rols device When DNA is enabled by default the first part of the BACnet address is inherited from the parent controller The last 2 digits of the BACnet address is equal to the MS TP MAC address For ex...

Страница 12: ...n the Delta Controls Support web site and install it on your operator workstation Installing the ORCAview Configuration Graphic To install the configuration graphic in ORCAview 1 On your operator work...

Страница 13: ...en edited Method 2 1 In the left window of the ORCAview navigator open the Graphics folder and double click on one of the configuration files A new graphic window opens You can access all the configur...

Страница 14: ...on is used to save the controller database to the controller s flash memory The Save to PC button is used to save the controller database pdb file to your computer The Load from PC button is used to l...

Страница 15: ...ber of specific object types in these controllers The number limits are summarized in the table below You cannot exceed this number by creating any new objects Object Type Configurable Programmable LI...

Страница 16: ...o 12 data exchange polling requests Delta Exchange Remote or DER objects Other types of Data Exchange initiating request types are not supported The DES object for the controller lists the number of D...

Страница 17: ...nd higher for EV objects only For more information about how to set up an intrinsic alarm see the webinar Intrinsic Alarms in ORCA 3 40 on the Delta Controls support web site Trend Logs A programmable...

Страница 18: ...ons Statements and Operators The Call Statement is not used in the programmable enteliZONE controllers Unlike other programmable Delta Controls controllers the 3 programs in the programmable enteliZON...

Страница 19: ...and upgrades 1 controller at a time over the BACnet Ethernet network This upgrade requires 3 Flash credits on a Flash Loader key Go to the Flash Loader page on the George Support web site for more inf...

Страница 20: ...s fields in the Flash Loader window display the status of the transmission 11 When the upgrade is complete the Status field displays an Update Complete message 12 Close the Flash Loader program Fan Co...

Страница 21: ...AV810 Fan1 AV811 Fan2 AV812 Fan3 Occupancy Manager Determines the occupancy mode in the space at any time MV800 Occu pancyMode Temperature Setpoint Manager Controls the active heating and cooling setp...

Страница 22: ...anager Cooling Stage Manager Heating Stage Manager MV800 Occupancy Mode AV800 CurrentHeating Setpoint AV801 CurrentCooling Setpoint AV802 HeatCool Load AV806 Cool1 AV807 Cool2 AV803 Heat1 AV804 Heat2...

Страница 23: ...eld Name Description Name Displays the name of the controller as it appears in the Device Object Model Name Displays the controller s Delta Controls model number Application Version Displays the contr...

Страница 24: ...ddress clear the DNA box Delta Controls products have the option to use DNA or Derived Network Addressing a system of organizing and configuring controllers in a network When DNA is enabled addresses...

Страница 25: ...isabled and all preconfigured algorithm I O points and variables are removed from the default database Other object types like AIC that were part of the algorithm can be used as is or reconfigured If...

Страница 26: ...this field In all other cases including setting up a parent controller leave this field at its default zero value If the parent s BACnet address changes in the future you must manually update this va...

Страница 27: ...ou are using a DischargeAirTemp_ Duct temperature sensor that is located downstream from any local heating or cooling stages that supply the air to that space SpaceTemp_ Space temperature sensor or a...

Страница 28: ...object Setting Up a Hardwired Occupancy Input This topic describes how to set up an occupancy input using the Local Inputs tab on the configuration page Occupancy inputs can either be maintained cont...

Страница 29: ...eset the override timer back to zero SpcTemp OccOvrdButton_ Space temperature sensor and the occupancy override push button are wired into the same input This can be a normally open contact wired in p...

Страница 30: ...re setting up a LINKnet DNS 24L or eZNS network sensor to provide occupancy input use the LINKnet I O tab on the configuration page Set Up a Hardwired CO2 Sensor 1 Wire your sensor to the controller s...

Страница 31: ...e following steps l For a simple on off switch select FanSpdSwitchOffResistance and FanSpdSwitchFan1Resistance Using the switch specifications enter the resistance values l For multiple fan speed cont...

Страница 32: ...ext to the input number that you ve assigned to the device in the Function field select the option that applies to your setup Function Select this option if you are using a AnalogMUX_ Creating an anal...

Страница 33: ...c describes how to set up damper position feedback using the Local Inputs tab on the configuration page The actuator must have a position feedback feature Set Up Damper Feedback 1 Wire the actuator to...

Страница 34: ...ormation about the enteliZONE algorithm s sequence of operations go to the Sequence of operations help Set up a Fan Coil Output 1 In the Function field make the following selections depending on the t...

Страница 35: ...ou are configuring an output signal to a 2 pipe fan coil you must use HeatCoolx as the output stage 2 In the Control Type field select the method of control used on the output device signal The contro...

Страница 36: ...Output Configuration Objects topic 2 In the Stage field select the corresponding fan stage for the output device If you are using ORCAview select the heat stage in the Output Stage field Start a new l...

Страница 37: ...a specific heat or cooling stage x is the stage number For ductal heat cool outputs with multi speed fans 1 is the default value With ECM fans FanMinSpeed see the section below is the default value 0...

Страница 38: ...led BO_ Creating a custom BO object Available only with programmable enteliZONE models and only on output terminals that support AO or BO objects For a list of output configuration software objects th...

Страница 39: ...the enteliZONE algorithm s sequence of operations go to the Sequence of Operations topic Set Up a Damper Output 1 In the Function field select the option that applies to your setup Function Select th...

Страница 40: ...ou do not have any network sensors online you can still configure the settings by selecting your network sensor and model from the Device Information field Red Box on LINKnet Tab enteliWEB only When y...

Страница 41: ...ut its value will not be used by the internal algorithm for space CO2 control 2 If you selected DemandControlVentilation in the additional settings in the CO2DemandVentSetpoint field enter the CO2 dem...

Страница 42: ...nsor s LCD screen 1 In the Display Options section next to Occupancy select the occupancy symbols you would like displayed on the LCD screen Display Option Select this option if you are setting up Not...

Страница 43: ...Backlight Color Select a color from the list of available backlight colors Backlight On Intensity Enter the desired backlight intensity when the screen is turned on with a button press 100 is the mos...

Страница 44: ...every button overlay In some cases the slider element can be converted into 2 additional up and down buttons or omitted In overlays where there are less than 8 buttons button areas are merged together...

Страница 45: ...document on George Support Set Up the Buttons and Slider Elements The graphic supports all standard Delta button functions but other custom button behaviors require GCL programming on a programmable c...

Страница 46: ...how long the button override should last OccupancyToggle_ Toggle between standby and occupied modes during scheduled occupancy periods When pushed during unoccupied mode it starts an occupancy overri...

Страница 47: ...pancy Setpoint Offset Reset function FanDown_ Decrease the displayed fan speed or toggle through fan stages after FanCycle is pressed With analog fans fan speed will change by this amount FanMaxSpeed...

Страница 48: ...net device at a time This LINKnet device has to have a device address of 1 in order for it to work with the controller algorithm Multiple LINKnet devices up to 4 are only supported by the programmable...

Страница 49: ...ion graphic Assigning Buttons on DNS 24L Network Sensor Introduction The enteliZONE controller is designed to work with the DNS 24L network sensor on a LINKnet network This topic describes how to assi...

Страница 50: ...override should last OccupancyOn_ Button 2 Turns on the occupied mode In the additional settings in the PushButtonOvrdTime field you can enter how long the button override should last OccupancyToggle...

Страница 51: ...ogrammable controller model this setting can be overridden using GCL In the additional settings in the OccSetpointOffsetReset field you can turn on the Occupancy Setpoint Offset Reset function TempSel...

Страница 52: ...ed Heating Setpoint UnOccHeatingSetpoint When the controller is in unoccupied mode heating is turned on when the space temperature drops below this setpoint Occupied Cooling Setpoint OccCoolingSetpoin...

Страница 53: ...f 1 0 the setback is 1 0 from the heating setpoint and 1 0 from the cooling setpoint Discharge Air Temperature Limiting Setpoint Differentials These setpoint fields are only enabled if you had configu...

Страница 54: ...s fixed Deadbands should be small enough so that the occupant does not notice the temperature variations within the deadband However making deadband ranges too small will make the actuators adjust fre...

Страница 55: ...rk from a supervisory controller The limit affects the heating stages in a reverse order starting with the last stage to the first stage Outdoor Air Temperature Cooling Lockout Setpoint OAT Clg Lockou...

Страница 56: ...ooling mode the active setpoint will display the cooling setpoint When there is no call for heating or cooling the controller is in deadband mode In deadband mode between unoccupied heating and coolin...

Страница 57: ...become occupied at any time Standby mode saves energy by dropping the minimum ventilation rates and relaxing the occupied setpoints by a setback This standby setback is less than the setback in unoccu...

Страница 58: ...pports using CO2 levels as a method of detecting occupancy This sequence uses 2 setpoints l CO2OccOnSetpoint AV182 When the CO2 level exceeds this setpoint a CO2 occupancy signal is generated To disab...

Страница 59: ...ncy input Description Motion Motion sensor starts a timed override when motion is detected in the space Occupancy Override button This is a pushbutton located in the space that when pressed starts or...

Страница 60: ...offset is restricted to be within the occupied setpoint offset range In Eco Mode the occupied setpoint offset range is relaxes by the amount specified by the Eco Mode Setback For night overrides a pu...

Страница 61: ...r temperature AV9 rises above outdoor air temperature heating lockout setpoint OATHeatLockoutSetpoint then all heating is disabled The outdoor air temperature will have to drop by 1 0 C below this set...

Страница 62: ...ven when the minimum heat output is greater than 0 The maximum heat output still applies to honour the system s upper safety limits For hydronic heat outputs both minimum and maximum heat output are u...

Страница 63: ...cooling will only be enabled in the algorithm when a supply fan has been configured Manual Fan Speed Control The algorithm allows you to manually change the fan speed when you set up a fan speed contr...

Страница 64: ...ween 0 and 100 The algorithm divides the overall heating or cooling load equally between all heating or cooling stages Stage load is the portion of the HeatCoolLoad that is dedicated to a particular s...

Страница 65: ...t in some cases higher fan speeds may remain unused at the end of active heating or cooling stages The algorithm takes this into account and uses these unused fan speeds as the final heat or cool stag...

Страница 66: ...Occupied Mode Unoccupied Mode Analog Fan turns on at 25 stage load at FanMinSpeed and stays on Fan turns off when demand drops to 0 Fan turns on at 100 duct stage load at FanMaxSpeed and turns off whe...

Страница 67: ...enteliZONE Sequence of Operations Page 66 of 84 eZFC 424R4 24 Application Guide Edition 2 6...

Страница 68: ...eZFC 424R4 24 Application Guide Edition 2 6 Page 67 of 84 In an analog duct stage the ECM fan ramps up to 10 per second click to view larger version of image or images...

Страница 69: ...d fan runs at its lowest speed Fan1 is on while Fan2 and Fan2 are off Heat Cooling Stage Occupied Mode Unoccupied Mode Binary Fan turns on for the duct heating or cooling stage Turns off when stage lo...

Страница 70: ...eZFC 424R4 24 Application Guide Edition 2 6 Page 69 of 84...

Страница 71: ...enteliZONE Sequence of Operations Page 70 of 84 eZFC 424R4 24 Application Guide Edition 2 6...

Страница 72: ...also enter a CO2 demand setpoint in the CO2DemandVentSetpoint AV185 field The CO2 demand is reflected in the demand control ventilation AV813 object The algorithm determines the airflow setpoint need...

Страница 73: ...n graphic the reversing valve will switch between the heat and cooling stages in response to the heat and cooling loads at each stage Heat and cooling demands are indicated by the HeatCoolLoad AV802 v...

Страница 74: ...nked to a local input the inputs can still be enabled by writing to the value remotely or from GCL The algorithm looks at the lastwriter property for the input destination the input is enabled by the...

Страница 75: ...tion FanSpdSwitch Fan2Resistance AV195 10 kohm Resistance of the fan speed switch when it is in the Fan Speed 2 position FanSpdSwitch Fan3Resistance AV196 30 kohm Resistance of the fan speed switch wh...

Страница 76: ...can be written over the network to provide a remote schedule input OccOvrdButton MV2 NotUsed_ Network sensor button used as an occupancy override button OccToggle But ton MV3 NotUsed_ Network sensor b...

Страница 77: ...scales the heating output using this maximum value TimePropPeriod AV154 100s The period of the pulse that is used to modulate the time proportional heating and cooling outputs Heat1FanMin AV199 0 The...

Страница 78: ...05 NotUsed_ Used to display the status of the reversing valve in a heat pump ManualFanOccInterlock BV104 Off Select On if you want a manual fan command to act as an occupancy signal Otherwise select O...

Страница 79: ...available to change the Occupied Heating and Cooling setpoints at a LINKnet stat interface or a hardwired setpoint adjust input OATHeat Lock outSetpoint AV160 99 Celsius Outside air temperature heat l...

Страница 80: ...BACnet Address Object The BACnet address is a unique address given to every controller and device in a Delta Controls network You can set or change the enteliZONE controller s BACnet address by writin...

Страница 81: ...wn list depend on the previous selection made in the Function field For example a binary control type would be the only control type available if the occupancy indicator function is selected The table...

Страница 82: ...oportioned tri state open tri state close Analog Analog binary As another example the physical outputs of the eZFC 424R4 24 controller support specific control types See the screenshot below for more...

Страница 83: ...d the following disclaimer in the documentation and or other materials provided with the distribution 3 The name of the author may not be used to endorse or promote products derived from this software...

Страница 84: ...cute solely and exclusively on microcontroller or microprocessor devices manufactured by or for STMicroelectronics 5 Redistribution and use of this software other than as permitted under this license...

Страница 85: ...irmware 2 2 features l New heat pump and radiant heat algorithms l New heat pump sequence of operations l enOcean integration section l Upgrade from configurable to programmable using flash loader l N...

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